Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left Home News Organization
Bookmark and Share Navigation Bar End Cap

  

National Conditions
    Rivers
    Satellite
    Climate
    Observed Precip

Local Conditions
    Warnings
    Weather Forecast
    Radar

AHPS Documentation
    User Guide
    User Brochure

What is AHPS?
    Facts
    Our Partners

Feedback/Questions
    Provide Feedback
    Ask Questions

When flooded turn around don't drown
FloodSmart
USA.gov Official Web Portal
 



Hydrograph River at a Glance Download
Big Sioux River at Akron Stage (ft)Flow (cfs)Observed: 13.25 ft at 7:00PM May 15, 2022Observed: 13.25 ft at 7:15PM May 15, 2022Highest Observation: 13.26 ft at 7:30PM May 15, 2022Observed: 13.25 ft at 7:45PM May 15, 2022Observed: 13.25 ft at 8:00PM May 15, 2022Observed: 13.25 ft at 8:15PM May 15, 2022Observed: 13.23 ft at 8:30PM May 15, 2022Observed: 13.23 ft at 8:45PM May 15, 2022Observed: 13.23 ft at 9:00PM May 15, 2022Observed: 13.22 ft at 9:15PM May 15, 2022Observed: 13.22 ft at 9:30PM May 15, 2022Observed: 13.22 ft at 9:45PM May 15, 2022Observed: 13.21 ft at 10:00PM May 15, 2022Observed: 13.2 ft at 10:15PM May 15, 2022Observed: 13.19 ft at 10:30PM May 15, 2022Observed: 13.18 ft at 10:45PM May 15, 2022Observed: 13.18 ft at 11:00PM May 15, 2022Observed: 13.18 ft at 11:15PM May 15, 2022Observed: 13.19 ft at 11:30PM May 15, 2022Observed: 13.18 ft at 11:45PM May 15, 2022Observed: 13.18 ft at 12:00AM May 16, 2022Observed: 13.17 ft at 12:15AM May 16, 2022Observed: 13.17 ft at 12:30AM May 16, 2022Observed: 13.18 ft at 12:45AM May 16, 2022Observed: 13.17 ft at 1:00AM May 16, 2022Observed: 13.17 ft at 1:15AM May 16, 2022Observed: 13.16 ft at 1:30AM May 16, 2022Observed: 13.16 ft at 1:45AM May 16, 2022Observed: 13.16 ft at 2:00AM May 16, 2022Observed: 13.16 ft at 2:15AM May 16, 2022Observed: 13.15 ft at 2:30AM May 16, 2022Observed: 13.15 ft at 2:45AM May 16, 2022Observed: 13.14 ft at 3:00AM May 16, 2022Observed: 13.15 ft at 3:15AM May 16, 2022Observed: 13.14 ft at 3:30AM May 16, 2022Observed: 13.13 ft at 3:45AM May 16, 2022Observed: 13.13 ft at 4:00AM May 16, 2022Observed: 13.13 ft at 4:15AM May 16, 2022Observed: 13.13 ft at 4:30AM May 16, 2022Observed: 13.13 ft at 4:45AM May 16, 2022Observed: 13.13 ft at 5:00AM May 16, 2022Observed: 13.13 ft at 5:15AM May 16, 2022Observed: 13.13 ft at 5:30AM May 16, 2022Observed: 13.12 ft at 5:45AM May 16, 2022Observed: 13.12 ft at 6:00AM May 16, 2022Observed: 13.12 ft at 6:15AM May 16, 2022Observed: 13.11 ft at 6:30AM May 16, 2022Observed: 13.11 ft at 6:45AM May 16, 2022Observed: 13.11 ft at 6:46AM May 16, 2022Observed: 13.11 ft at 7:00AM May 16, 2022Observed: 13.11 ft at 7:01AM May 16, 2022Observed: 13.11 ft at 7:15AM May 16, 2022Observed: 13.11 ft at 7:16AM May 16, 2022Observed: 13.1 ft at 7:30AM May 16, 2022Observed: 13.1 ft at 7:45AM May 16, 2022Observed: 13.1 ft at 8:00AM May 16, 2022Observed: 13.09 ft at 8:15AM May 16, 2022Observed: 13.1 ft at 8:30AM May 16, 2022Observed: 13.09 ft at 8:45AM May 16, 2022Observed: 13.09 ft at 9:00AM May 16, 2022Observed: 13.08 ft at 9:15AM May 16, 2022Observed: 13.08 ft at 9:30AM May 16, 2022Observed: 13.08 ft at 9:45AM May 16, 2022Observed: 13.09 ft at 10:00AM May 16, 2022Observed: 13.11 ft at 10:15AM May 16, 2022Observed: 13.11 ft at 10:30AM May 16, 2022Observed: 13.12 ft at 10:45AM May 16, 2022Observed: 13.12 ft at 11:00AM May 16, 2022Observed: 13.11 ft at 11:15AM May 16, 2022Observed: 13.11 ft at 11:30AM May 16, 2022Observed: 13.08 ft at 11:45AM May 16, 2022Observed: 13.08 ft at 12:00PM May 16, 2022Observed: 13.1 ft at 12:15PM May 16, 2022Observed: 13.1 ft at 12:30PM May 16, 2022Observed: 13.1 ft at 12:45PM May 16, 2022Observed: 13.1 ft at 1:00PM May 16, 2022Observed: 13.09 ft at 1:15PM May 16, 2022Observed: 13.09 ft at 1:30PM May 16, 2022Observed: 13.1 ft at 1:45PM May 16, 2022Observed: 13.09 ft at 2:00PM May 16, 2022Observed: 13.11 ft at 2:15PM May 16, 2022Observed: 13.09 ft at 2:30PM May 16, 2022Observed: 13.06 ft at 2:45PM May 16, 2022Observed: 13.06 ft at 2:46PM May 16, 2022Observed: 13.08 ft at 3:00PM May 16, 2022Observed: 13.08 ft at 3:01PM May 16, 2022Observed: 13.08 ft at 3:15PM May 16, 2022Observed: 13.08 ft at 3:16PM May 16, 2022Observed: 13.07 ft at 3:30PM May 16, 2022Observed: 13.06 ft at 3:45PM May 16, 2022Observed: 13.07 ft at 4:00PM May 16, 2022Observed: 13.06 ft at 4:15PM May 16, 2022Observed: 13.06 ft at 4:30PM May 16, 2022Observed: 13.06 ft at 4:45PM May 16, 2022Observed: 13.04 ft at 5:00PM May 16, 2022Observed: 13.04 ft at 5:15PM May 16, 2022Observed: 13.04 ft at 5:30PM May 16, 2022Observed: 13.05 ft at 5:45PM May 16, 2022Observed: 13.04 ft at 6:00PM May 16, 2022Observed: 13.03 ft at 6:15PM May 16, 2022Observed: 13.02 ft at 6:30PM May 16, 2022Observed: 13.02 ft at 6:45PM May 16, 2022Observed: 13.01 ft at 7:00PM May 16, 2022Observed: 13.01 ft at 7:15PM May 16, 2022Observed: 13 ft at 7:30PM May 16, 2022Observed: 12.99 ft at 7:45PM May 16, 2022Observed: 12.99 ft at 8:00PM May 16, 2022Observed: 12.98 ft at 8:15PM May 16, 2022Observed: 12.98 ft at 8:30PM May 16, 2022Observed: 12.97 ft at 8:45PM May 16, 2022Observed: 12.96 ft at 9:00PM May 16, 2022Observed: 12.96 ft at 9:15PM May 16, 2022Observed: 12.94 ft at 9:30PM May 16, 2022Observed: 12.95 ft at 9:45PM May 16, 2022Observed: 12.93 ft at 10:00PM May 16, 2022Observed: 12.92 ft at 10:15PM May 16, 2022Observed: 12.92 ft at 10:30PM May 16, 2022Observed: 12.92 ft at 10:45PM May 16, 2022Observed: 12.92 ft at 10:46PM May 16, 2022Observed: 12.91 ft at 11:00PM May 16, 2022Observed: 12.91 ft at 11:01PM May 16, 2022Observed: 12.89 ft at 11:15PM May 16, 2022Observed: 12.89 ft at 11:16PM May 16, 2022Observed: 12.89 ft at 11:30PM May 16, 2022Observed: 12.88 ft at 11:45PM May 16, 2022Observed: 12.87 ft at 12:00AM May 17, 2022Observed: 12.88 ft at 12:15AM May 17, 2022Observed: 12.87 ft at 12:30AM May 17, 2022Observed: 12.84 ft at 12:45AM May 17, 2022Observed: 12.85 ft at 1:00AM May 17, 2022Observed: 12.85 ft at 1:15AM May 17, 2022Observed: 12.83 ft at 1:30AM May 17, 2022Observed: 12.82 ft at 1:45AM May 17, 2022Observed: 12.82 ft at 2:00AM May 17, 2022Observed: 12.81 ft at 2:15AM May 17, 2022Observed: 12.8 ft at 2:30AM May 17, 2022Observed: 12.8 ft at 2:45AM May 17, 2022Observed: 12.78 ft at 3:00AM May 17, 2022Observed: 12.77 ft at 3:15AM May 17, 2022Observed: 12.76 ft at 3:30AM May 17, 2022Observed: 12.76 ft at 3:45AM May 17, 2022Observed: 12.74 ft at 4:00AM May 17, 2022Observed: 12.73 ft at 4:15AM May 17, 2022Observed: 12.72 ft at 4:30AM May 17, 2022Observed: 12.72 ft at 4:45AM May 17, 2022Observed: 12.71 ft at 5:00AM May 17, 2022Observed: 12.69 ft at 5:15AM May 17, 2022Observed: 12.69 ft at 5:30AM May 17, 2022Observed: 12.69 ft at 5:45AM May 17, 2022Observed: 12.69 ft at 6:00AM May 17, 2022Observed: 12.68 ft at 6:15AM May 17, 2022Observed: 12.67 ft at 6:30AM May 17, 2022Observed: 12.66 ft at 6:45AM May 17, 2022Observed: 12.65 ft at 7:00AM May 17, 2022Observed: 12.64 ft at 7:15AM May 17, 2022Observed: 12.63 ft at 7:30AM May 17, 2022Observed: 12.63 ft at 7:45AM May 17, 2022Observed: 12.63 ft at 8:00AM May 17, 2022Observed: 12.63 ft at 8:15AM May 17, 2022Observed: 12.59 ft at 8:30AM May 17, 2022Observed: 12.59 ft at 8:45AM May 17, 2022Observed: 12.61 ft at 9:00AM May 17, 2022Observed: 12.6 ft at 9:15AM May 17, 2022Observed: 12.59 ft at 9:30AM May 17, 2022Observed: 12.59 ft at 9:45AM May 17, 2022Observed: 12.59 ft at 10:00AM May 17, 2022Observed: 12.55 ft at 10:15AM May 17, 2022Observed: 12.56 ft at 10:30AM May 17, 2022Observed: 12.56 ft at 10:45AM May 17, 2022Observed: 12.56 ft at 11:00AM May 17, 2022Observed: 12.53 ft at 11:15AM May 17, 2022Observed: 12.54 ft at 11:30AM May 17, 2022Observed: 12.53 ft at 11:45AM May 17, 2022Observed: 12.52 ft at 12:00PM May 17, 2022Observed: 12.51 ft at 12:15PM May 17, 2022Observed: 12.51 ft at 12:30PM May 17, 2022Observed: 12.5 ft at 12:45PM May 17, 2022Observed: 12.49 ft at 1:00PM May 17, 2022Observed: 12.49 ft at 1:15PM May 17, 2022Observed: 12.47 ft at 1:30PM May 17, 2022Observed: 12.47 ft at 1:45PM May 17, 2022Observed: 12.45 ft at 2:00PM May 17, 2022Observed: 12.45 ft at 2:15PM May 17, 2022Observed: 12.45 ft at 2:30PM May 17, 2022Observed: 12.44 ft at 2:45PM May 17, 2022Observed: 12.44 ft at 2:46PM May 17, 2022Observed: 12.43 ft at 3:00PM May 17, 2022Observed: 12.43 ft at 3:01PM May 17, 2022Observed: 12.43 ft at 3:15PM May 17, 2022Observed: 12.43 ft at 3:16PM May 17, 2022Observed: 12.42 ft at 3:30PM May 17, 2022Observed: 12.41 ft at 3:45PM May 17, 2022Observed: 12.4 ft at 4:00PM May 17, 2022Observed: 12.41 ft at 4:15PM May 17, 2022Observed: 12.4 ft at 4:30PM May 17, 2022Observed: 12.39 ft at 4:45PM May 17, 2022Observed: 12.4 ft at 5:00PM May 17, 2022Observed: 12.39 ft at 5:15PM May 17, 2022Observed: 12.39 ft at 5:30PM May 17, 2022Observed: 12.38 ft at 5:45PM May 17, 2022Observed: 12.37 ft at 6:00PM May 17, 2022Observed: 12.38 ft at 6:15PM May 17, 2022Observed: 12.39 ft at 6:30PM May 17, 2022Observed: 12.38 ft at 6:45PM May 17, 2022Observed: 12.37 ft at 7:00PM May 17, 2022Observed: 12.35 ft at 7:15PM May 17, 2022Observed: 12.34 ft at 7:30PM May 17, 2022Observed: 12.34 ft at 7:45PM May 17, 2022Observed: 12.32 ft at 8:00PM May 17, 2022Observed: 12.32 ft at 8:15PM May 17, 2022Observed: 12.32 ft at 8:30PM May 17, 2022Observed: 12.3 ft at 8:45PM May 17, 2022Observed: 12.29 ft at 9:00PM May 17, 2022Observed: 12.28 ft at 9:15PM May 17, 2022Observed: 12.26 ft at 9:30PM May 17, 2022Observed: 12.26 ft at 9:45PM May 17, 2022Observed: 12.26 ft at 10:00PM May 17, 2022Observed: 12.24 ft at 10:15PM May 17, 2022Observed: 12.23 ft at 10:30PM May 17, 2022Observed: 12.23 ft at 10:45PM May 17, 2022Observed: 12.22 ft at 11:00PM May 17, 2022Observed: 12.22 ft at 11:01PM May 17, 2022Observed: 12.2 ft at 11:15PM May 17, 2022Observed: 12.2 ft at 11:16PM May 17, 2022Observed: 12.2 ft at 11:30PM May 17, 2022Observed: 12.2 ft at 11:31PM May 17, 2022Observed: 12.2 ft at 11:45PM May 17, 2022Observed: 12.18 ft at 12:00AM May 18, 2022Observed: 12.18 ft at 12:15AM May 18, 2022Observed: 12.17 ft at 12:30AM May 18, 2022Observed: 12.17 ft at 12:45AM May 18, 2022Observed: 12.16 ft at 1:00AM May 18, 2022Observed: 12.15 ft at 1:15AM May 18, 2022Observed: 12.15 ft at 1:30AM May 18, 2022Observed: 12.15 ft at 1:45AM May 18, 2022Observed: 12.14 ft at 2:00AM May 18, 2022Observed: 12.13 ft at 2:15AM May 18, 2022Observed: 12.13 ft at 2:30AM May 18, 2022Observed: 12.13 ft at 2:45AM May 18, 2022Observed: 12.11 ft at 3:00AM May 18, 2022Observed: 12.11 ft at 3:15AM May 18, 2022Observed: 12.09 ft at 3:30AM May 18, 2022Observed: 12.09 ft at 3:45AM May 18, 2022Observed: 12.08 ft at 4:00AM May 18, 2022Observed: 12.07 ft at 4:15AM May 18, 2022Observed: 12.07 ft at 4:30AM May 18, 2022Observed: 12.06 ft at 4:45AM May 18, 2022Observed: 12.06 ft at 5:00AM May 18, 2022Observed: 12.05 ft at 5:15AM May 18, 2022Observed: 12.05 ft at 5:30AM May 18, 2022Observed: 12.04 ft at 5:45AM May 18, 2022Observed: 12.03 ft at 6:00AM May 18, 2022Observed: 12.03 ft at 6:15AM May 18, 2022Observed: 12.02 ft at 6:30AM May 18, 2022Observed: 12.01 ft at 6:45AM May 18, 2022Observed: 12 ft at 7:00AM May 18, 2022Observed: 12 ft at 7:01AM May 18, 2022Observed: 12 ft at 7:15AM May 18, 2022Observed: 12 ft at 7:16AM May 18, 2022Observed: 11.99 ft at 7:30AM May 18, 2022Observed: 11.99 ft at 7:31AM May 18, 2022Observed: 11.98 ft at 7:45AM May 18, 2022Observed: 11.97 ft at 8:00AM May 18, 2022Observed: 11.97 ft at 8:15AM May 18, 2022Observed: 11.96 ft at 8:30AM May 18, 2022Observed: 11.95 ft at 8:45AM May 18, 2022Observed: 11.95 ft at 9:00AM May 18, 2022Observed: 11.95 ft at 9:15AM May 18, 2022Observed: 11.92 ft at 9:30AM May 18, 2022Observed: 11.93 ft at 9:45AM May 18, 2022Observed: 11.93 ft at 10:00AM May 18, 2022Observed: 11.92 ft at 10:15AM May 18, 2022Observed: 11.94 ft at 10:30AM May 18, 2022Observed: 11.94 ft at 10:45AM May 18, 2022Observed: 11.93 ft at 11:00AM May 18, 2022Observed: 11.93 ft at 11:15AM May 18, 2022Observed: 11.92 ft at 11:30AM May 18, 2022Observed: 11.91 ft at 11:45AM May 18, 2022Observed: 11.9 ft at 12:00PM May 18, 2022Observed: 11.9 ft at 12:15PM May 18, 2022Observed: 11.88 ft at 12:30PM May 18, 2022Observed: 11.89 ft at 12:45PM May 18, 2022Observed: 11.88 ft at 1:00PM May 18, 2022Observed: 11.88 ft at 1:15PM May 18, 2022Observed: 11.87 ft at 1:30PM May 18, 2022Observed: 11.86 ft at 1:45PM May 18, 2022Observed: 11.85 ft at 2:00PM May 18, 2022Observed: 11.84 ft at 2:15PM May 18, 2022Observed: 11.86 ft at 2:30PM May 18, 2022Observed: 11.84 ft at 2:45PM May 18, 2022Observed: 11.83 ft at 3:00PM May 18, 2022Observed: 11.83 ft at 3:01PM May 18, 2022Observed: 11.83 ft at 3:15PM May 18, 2022Observed: 11.83 ft at 3:16PM May 18, 2022Observed: 11.82 ft at 3:30PM May 18, 2022Observed: 11.82 ft at 3:31PM May 18, 2022Observed: 11.81 ft at 3:45PM May 18, 2022Observed: 11.81 ft at 4:00PM May 18, 2022Observed: 11.8 ft at 4:15PM May 18, 2022Observed: 11.8 ft at 4:30PM May 18, 2022Observed: 11.79 ft at 4:45PM May 18, 2022Observed: 11.78 ft at 5:00PM May 18, 2022Observed: 11.77 ft at 5:15PM May 18, 2022Observed: 11.77 ft at 5:30PM May 18, 2022Observed: 11.75 ft at 5:45PM May 18, 2022Observed: 11.75 ft at 6:00PM May 18, 2022Observed: 11.75 ft at 6:15PM May 18, 2022Observed: 11.74 ft at 6:30PM May 18, 2022Observed: 11.73 ft at 6:45PM May 18, 2022Observed: 11.73 ft at 7:00PM May 18, 2022Observed: 11.71 ft at 7:15PM May 18, 2022Observed: 11.72 ft at 7:30PM May 18, 2022Observed: 11.71 ft at 7:45PM May 18, 2022Observed: 11.7 ft at 8:00PM May 18, 2022Observed: 11.69 ft at 8:15PM May 18, 2022Observed: 11.68 ft at 8:30PM May 18, 2022Observed: 11.68 ft at 8:45PM May 18, 2022Observed: 11.66 ft at 9:00PM May 18, 2022Observed: 11.66 ft at 9:15PM May 18, 2022Observed: 11.66 ft at 9:30PM May 18, 2022Observed: 11.65 ft at 9:45PM May 18, 2022Observed: 11.64 ft at 10:00PM May 18, 2022Observed: 11.63 ft at 10:15PM May 18, 2022Observed: 11.62 ft at 10:30PM May 18, 2022Observed: 11.61 ft at 10:45PM May 18, 2022Observed: 11.6 ft at 11:00PM May 18, 2022Observed: 11.6 ft at 11:01PM May 18, 2022Observed: 11.6 ft at 11:15PM May 18, 2022Observed: 11.6 ft at 11:16PM May 18, 2022Observed: 11.59 ft at 11:30PM May 18, 2022Observed: 11.59 ft at 11:31PM May 18, 2022Observed: 11.58 ft at 11:45PM May 18, 2022Observed: 11.57 ft at 12:00AM May 19, 2022Observed: 11.57 ft at 12:15AM May 19, 2022Observed: 11.56 ft at 12:30AM May 19, 2022Observed: 11.55 ft at 12:45AM May 19, 2022Observed: 11.54 ft at 1:00AM May 19, 2022Observed: 11.53 ft at 1:15AM May 19, 2022Observed: 11.53 ft at 1:30AM May 19, 2022Observed: 11.53 ft at 1:45AM May 19, 2022Observed: 11.51 ft at 2:00AM May 19, 2022Observed: 11.5 ft at 2:15AM May 19, 2022Observed: 11.5 ft at 2:30AM May 19, 2022Observed: 11.5 ft at 2:45AM May 19, 2022Observed: 11.49 ft at 3:00AM May 19, 2022Observed: 11.48 ft at 3:15AM May 19, 2022Observed: 11.48 ft at 3:30AM May 19, 2022Observed: 11.47 ft at 3:45AM May 19, 2022Observed: 11.47 ft at 4:00AM May 19, 2022Observed: 11.46 ft at 4:15AM May 19, 2022Observed: 11.46 ft at 4:30AM May 19, 2022Observed: 11.45 ft at 4:45AM May 19, 2022Observed: 11.45 ft at 5:00AM May 19, 2022Observed: 11.44 ft at 5:15AM May 19, 2022Observed: 11.44 ft at 5:30AM May 19, 2022Observed: 11.43 ft at 5:45AM May 19, 2022Observed: 11.42 ft at 6:00AM May 19, 2022Observed: 11.42 ft at 6:15AM May 19, 2022Observed: 11.41 ft at 6:30AM May 19, 2022Observed: 11.41 ft at 6:45AM May 19, 2022Observed: 11.41 ft at 7:00AM May 19, 2022Observed: 11.41 ft at 7:01AM May 19, 2022Observed: 11.39 ft at 7:15AM May 19, 2022Observed: 11.39 ft at 7:16AM May 19, 2022Observed: 11.38 ft at 7:30AM May 19, 2022Observed: 11.38 ft at 7:31AM May 19, 2022Observed: 11.39 ft at 7:45AM May 19, 2022Observed: 11.37 ft at 8:00AM May 19, 2022Observed: 11.38 ft at 8:15AM May 19, 2022Observed: 11.37 ft at 8:30AM May 19, 2022Observed: 11.37 ft at 8:45AM May 19, 2022Observed: 11.36 ft at 9:00AM May 19, 2022Observed: 11.36 ft at 9:15AM May 19, 2022Observed: 11.35 ft at 9:30AM May 19, 2022Observed: 11.36 ft at 9:45AM May 19, 2022Observed: 11.36 ft at 10:00AM May 19, 2022Observed: 11.33 ft at 10:15AM May 19, 2022Observed: 11.34 ft at 10:30AM May 19, 2022Observed: 11.34 ft at 10:45AM May 19, 2022Observed: 11.33 ft at 11:00AM May 19, 2022Observed: 11.32 ft at 11:15AM May 19, 2022Observed: 11.31 ft at 11:30AM May 19, 2022Observed: 11.32 ft at 11:45AM May 19, 2022Observed: 11.32 ft at 12:00PM May 19, 2022Observed: 11.3 ft at 12:15PM May 19, 2022Observed: 11.28 ft at 12:30PM May 19, 2022Observed: 11.29 ft at 12:45PM May 19, 2022Observed: 11.29 ft at 1:00PM May 19, 2022Observed: 11.28 ft at 1:15PM May 19, 2022Observed: 11.27 ft at 1:30PM May 19, 2022Observed: 11.26 ft at 1:45PM May 19, 2022Observed: 11.26 ft at 2:00PM May 19, 2022Observed: 11.25 ft at 2:15PM May 19, 2022Observed: 11.26 ft at 2:30PM May 19, 2022Observed: 11.26 ft at 2:45PM May 19, 2022Observed: 11.26 ft at 3:00PM May 19, 2022Observed: 11.26 ft at 3:01PM May 19, 2022Observed: 11.25 ft at 3:15PM May 19, 2022Observed: 11.25 ft at 3:16PM May 19, 2022Observed: 11.26 ft at 3:30PM May 19, 2022Observed: 11.26 ft at 3:31PM May 19, 2022Observed: 11.25 ft at 3:45PM May 19, 2022Observed: 11.24 ft at 4:00PM May 19, 2022Observed: 11.24 ft at 4:15PM May 19, 2022Observed: 11.25 ft at 4:30PM May 19, 2022Observed: 11.25 ft at 4:45PM May 19, 2022Observed: 11.23 ft at 5:00PM May 19, 2022Observed: 11.23 ft at 5:15PM May 19, 2022Observed: 11.21 ft at 5:30PM May 19, 2022Observed: 11.22 ft at 5:45PM May 19, 2022Observed: 11.19 ft at 6:00PM May 19, 2022Observed: 11.19 ft at 6:15PM May 19, 2022Observed: 11.19 ft at 6:30PM May 19, 2022Observed: 11.21 ft at 6:45PM May 19, 2022Observed: 11.21 ft at 7:00PM May 19, 2022Observed: 11.2 ft at 7:15PM May 19, 2022Observed: 11.19 ft at 7:30PM May 19, 2022Observed: 11.19 ft at 7:45PM May 19, 2022Observed: 11.17 ft at 8:00PM May 19, 2022Observed: 11.14 ft at 8:15PM May 19, 2022Observed: 11.15 ft at 8:30PM May 19, 2022Observed: 11.11 ft at 8:45PM May 19, 2022Observed: 11.1 ft at 9:00PM May 19, 2022Observed: 11.12 ft at 9:15PM May 19, 2022Observed: 11.08 ft at 9:30PM May 19, 2022Observed: 11.08 ft at 9:45PM May 19, 2022Observed: 11.09 ft at 10:00PM May 19, 2022Observed: 11.08 ft at 10:15PM May 19, 2022Observed: 11.07 ft at 10:30PM May 19, 2022Observed: 11.09 ft at 10:45PM May 19, 2022Observed: 11.09 ft at 11:00PM May 19, 2022Observed: 11.09 ft at 11:01PM May 19, 2022Observed: 11.09 ft at 11:15PM May 19, 2022Observed: 11.09 ft at 11:16PM May 19, 2022Observed: 11.09 ft at 11:30PM May 19, 2022Observed: 11.09 ft at 11:31PM May 19, 2022Observed: 11.04 ft at 11:45PM May 19, 2022Observed: 11.06 ft at 12:00AM May 20, 2022Observed: 11.08 ft at 12:15AM May 20, 2022Observed: 11.07 ft at 12:30AM May 20, 2022Observed: 11.07 ft at 12:45AM May 20, 2022Observed: 11.07 ft at 1:00AM May 20, 2022Observed: 11.07 ft at 1:15AM May 20, 2022Observed: 11.07 ft at 1:30AM May 20, 2022Observed: 11.06 ft at 1:45AM May 20, 2022Observed: 11.06 ft at 2:00AM May 20, 2022Observed: 11.05 ft at 2:15AM May 20, 2022Observed: 11.06 ft at 2:30AM May 20, 2022Observed: 11.05 ft at 2:45AM May 20, 2022Observed: 11.04 ft at 3:00AM May 20, 2022Observed: 11.04 ft at 3:15AM May 20, 2022Observed: 11.03 ft at 3:30AM May 20, 2022Observed: 11.03 ft at 3:45AM May 20, 2022Observed: 11.02 ft at 4:00AM May 20, 2022Observed: 11.03 ft at 4:15AM May 20, 2022Observed: 11.02 ft at 4:30AM May 20, 2022Observed: 11.01 ft at 4:45AM May 20, 2022Observed: 11.01 ft at 5:00AM May 20, 2022Observed: 11.01 ft at 5:15AM May 20, 2022Observed: 11.01 ft at 5:30AM May 20, 2022Observed: 11 ft at 5:45AM May 20, 2022Observed: 10.99 ft at 6:00AM May 20, 2022Observed: 10.99 ft at 6:15AM May 20, 2022Observed: 10.98 ft at 6:30AM May 20, 2022Observed: 10.98 ft at 6:45AM May 20, 2022Observed: 10.98 ft at 7:00AM May 20, 2022Observed: 10.98 ft at 7:01AM May 20, 2022Observed: 10.97 ft at 7:15AM May 20, 2022Observed: 10.97 ft at 7:16AM May 20, 2022Observed: 10.96 ft at 7:30AM May 20, 2022Observed: 10.96 ft at 7:31AM May 20, 2022Observed: 10.97 ft at 7:45AM May 20, 2022Observed: 10.96 ft at 8:00AM May 20, 2022Observed: 10.95 ft at 8:15AM May 20, 2022Observed: 10.95 ft at 8:30AM May 20, 2022Observed: 10.94 ft at 8:45AM May 20, 2022Observed: 10.94 ft at 9:00AM May 20, 2022Observed: 10.94 ft at 9:15AM May 20, 2022Observed: 10.93 ft at 9:30AM May 20, 2022Observed: 10.93 ft at 9:45AM May 20, 2022Observed: 10.93 ft at 10:00AM May 20, 2022Observed: 10.92 ft at 10:15AM May 20, 2022Observed: 10.93 ft at 10:30AM May 20, 2022Observed: 10.92 ft at 10:45AM May 20, 2022Observed: 10.91 ft at 11:00AM May 20, 2022Observed: 10.92 ft at 11:15AM May 20, 2022Observed: 10.91 ft at 11:30AM May 20, 2022Observed: 10.89 ft at 11:45AM May 20, 2022Observed: 10.9 ft at 12:00PM May 20, 2022Observed: 10.89 ft at 12:15PM May 20, 2022Observed: 10.88 ft at 12:30PM May 20, 2022Observed: 10.87 ft at 12:45PM May 20, 2022Observed: 10.88 ft at 1:00PM May 20, 2022Observed: 10.87 ft at 1:15PM May 20, 2022Observed: 10.87 ft at 1:30PM May 20, 2022Observed: 10.86 ft at 1:45PM May 20, 2022Observed: 10.88 ft at 2:00PM May 20, 2022Observed: 10.85 ft at 2:15PM May 20, 2022Observed: 10.88 ft at 2:30PM May 20, 2022Observed: 10.86 ft at 2:45PM May 20, 2022Observed: 10.87 ft at 3:00PM May 20, 2022Observed: 10.87 ft at 3:01PM May 20, 2022Observed: 10.85 ft at 3:15PM May 20, 2022Observed: 10.85 ft at 3:16PM May 20, 2022Observed: 10.85 ft at 3:30PM May 20, 2022Observed: 10.85 ft at 3:31PM May 20, 2022Observed: 10.85 ft at 3:45PM May 20, 2022Observed: 10.85 ft at 4:00PM May 20, 2022Observed: 10.84 ft at 4:15PM May 20, 2022Observed: 10.83 ft at 4:30PM May 20, 2022Observed: 10.83 ft at 4:45PM May 20, 2022Observed: 10.83 ft at 5:00PM May 20, 2022Observed: 10.81 ft at 5:15PM May 20, 2022Observed: 10.81 ft at 5:30PM May 20, 2022Observed: 10.8 ft at 5:45PM May 20, 2022Observed: 10.8 ft at 6:00PM May 20, 2022Observed: 10.81 ft at 6:15PM May 20, 2022Observed: 10.8 ft at 6:30PM May 20, 2022Observed: 10.79 ft at 6:45PM May 20, 2022Observed: 10.79 ft at 7:00PM May 20, 2022Observed: 10.78 ft at 7:15PM May 20, 2022Observed: 10.79 ft at 7:30PM May 20, 2022Observed: 10.79 ft at 7:45PM May 20, 2022Observed: 10.79 ft at 8:00PM May 20, 2022Observed: 10.78 ft at 8:15PM May 20, 2022Observed: 10.77 ft at 8:30PM May 20, 2022Observed: 10.78 ft at 8:45PM May 20, 2022Observed: 10.77 ft at 9:00PM May 20, 2022Observed: 10.76 ft at 11:15PM May 20, 2022Observed: 10.75 ft at 11:30PM May 20, 2022Observed: 10.76 ft at 11:45PM May 20, 2022Observed: 10.76 ft at 12:00AM May 21, 2022Observed: 10.75 ft at 12:15AM May 21, 2022Observed: 10.75 ft at 12:30AM May 21, 2022Observed: 10.74 ft at 12:45AM May 21, 2022Observed: 10.74 ft at 1:00AM May 21, 2022Observed: 10.73 ft at 1:15AM May 21, 2022Observed: 10.73 ft at 1:30AM May 21, 2022Observed: 10.73 ft at 1:45AM May 21, 2022Observed: 10.72 ft at 2:00AM May 21, 2022Observed: 10.71 ft at 2:15AM May 21, 2022Observed: 10.72 ft at 2:30AM May 21, 2022Observed: 10.72 ft at 2:45AM May 21, 2022Observed: 10.72 ft at 3:00AM May 21, 2022Observed: 10.72 ft at 3:15AM May 21, 2022Observed: 10.71 ft at 3:30AM May 21, 2022Observed: 10.71 ft at 3:45AM May 21, 2022Observed: 10.7 ft at 4:00AM May 21, 2022Observed: 10.71 ft at 4:15AM May 21, 2022Observed: 10.7 ft at 4:30AM May 21, 2022Observed: 10.7 ft at 4:45AM May 21, 2022Observed: 10.69 ft at 5:00AM May 21, 2022Observed: 10.69 ft at 5:15AM May 21, 2022Observed: 10.69 ft at 5:30AM May 21, 2022Observed: 10.69 ft at 5:45AM May 21, 2022Observed: 10.68 ft at 6:00AM May 21, 2022Observed: 10.69 ft at 6:15AM May 21, 2022Observed: 10.68 ft at 6:30AM May 21, 2022Observed: 10.67 ft at 6:45AM May 21, 2022Observed: 10.67 ft at 7:00AM May 21, 2022Observed: 10.66 ft at 7:15AM May 21, 2022Observed: 10.67 ft at 7:30AM May 21, 2022Observed: 10.66 ft at 7:45AM May 21, 2022Observed: 10.66 ft at 8:00AM May 21, 2022Observed: 10.66 ft at 8:15AM May 21, 2022Observed: 10.65 ft at 8:30AM May 21, 2022Observed: 10.65 ft at 8:45AM May 21, 2022Observed: 10.64 ft at 9:00AM May 21, 2022Observed: 10.64 ft at 9:15AM May 21, 2022Observed: 10.64 ft at 9:30AM May 21, 2022Observed: 10.64 ft at 9:45AM May 21, 2022Observed: 10.64 ft at 10:00AM May 21, 2022Observed: 10.63 ft at 10:15AM May 21, 2022Observed: 10.64 ft at 10:30AM May 21, 2022Observed: 10.62 ft at 10:45AM May 21, 2022Observed: 10.63 ft at 11:00AM May 21, 2022Observed: 10.62 ft at 11:15AM May 21, 2022Observed: 10.62 ft at 11:30AM May 21, 2022Observed: 10.61 ft at 11:45AM May 21, 2022Observed: 10.61 ft at 12:00PM May 21, 2022Observed: 10.6 ft at 12:15PM May 21, 2022Observed: 10.6 ft at 12:30PM May 21, 2022Observed: 10.6 ft at 12:45PM May 21, 2022Observed: 10.6 ft at 1:00PM May 21, 2022Observed: 10.6 ft at 1:15PM May 21, 2022Observed: 10.6 ft at 1:30PM May 21, 2022Observed: 10.59 ft at 1:45PM May 21, 2022Observed: 10.58 ft at 2:00PM May 21, 2022Observed: 10.59 ft at 2:15PM May 21, 2022Observed: 10.59 ft at 2:30PM May 21, 2022Observed: 10.59 ft at 2:45PM May 21, 2022Observed: 10.57 ft at 3:00PM May 21, 2022Observed: 10.58 ft at 3:15PM May 21, 2022Observed: 10.58 ft at 3:16PM May 21, 2022Observed: 10.58 ft at 3:30PM May 21, 2022Observed: 10.58 ft at 3:31PM May 21, 2022Observed: 10.56 ft at 3:45PM May 21, 2022Observed: 10.56 ft at 3:46PM May 21, 2022Observed: 10.57 ft at 4:00PM May 21, 2022Observed: 10.56 ft at 4:15PM May 21, 2022Observed: 10.57 ft at 4:30PM May 21, 2022Observed: 10.57 ft at 4:45PM May 21, 2022Observed: 10.57 ft at 5:00PM May 21, 2022Observed: 10.57 ft at 5:15PM May 21, 2022Observed: 10.56 ft at 5:30PM May 21, 2022Observed: 10.56 ft at 5:45PM May 21, 2022Observed: 10.56 ft at 6:00PM May 21, 2022Observed: 10.56 ft at 6:15PM May 21, 2022Observed: 10.57 ft at 6:30PM May 21, 2022Observed: 10.56 ft at 6:45PM May 21, 2022Observed: 10.55 ft at 7:00PM May 21, 2022Observed: 10.55 ft at 7:15PM May 21, 2022Observed: 10.56 ft at 7:30PM May 21, 2022Observed: 10.56 ft at 7:45PM May 21, 2022Observed: 10.55 ft at 8:00PM May 21, 2022Observed: 10.54 ft at 8:15PM May 21, 2022Observed: 10.55 ft at 8:30PM May 21, 2022Observed: 10.54 ft at 8:45PM May 21, 2022Observed: 10.54 ft at 9:00PM May 21, 2022Observed: 10.54 ft at 9:15PM May 21, 2022Observed: 10.54 ft at 9:30PM May 21, 2022Observed: 10.53 ft at 9:45PM May 21, 2022Observed: 10.53 ft at 10:00PM May 21, 2022Observed: 10.53 ft at 10:15PM May 21, 2022Observed: 10.52 ft at 10:30PM May 21, 2022Observed: 10.52 ft at 10:45PM May 21, 2022Observed: 10.52 ft at 11:00PM May 21, 2022Observed: 10.52 ft at 11:15PM May 21, 2022Observed: 10.52 ft at 11:16PM May 21, 2022Observed: 10.52 ft at 11:30PM May 21, 2022Observed: 10.52 ft at 11:31PM May 21, 2022Observed: 10.52 ft at 11:45PM May 21, 2022Observed: 10.52 ft at 11:46PM May 21, 2022Observed: 10.52 ft at 12:00AM May 22, 2022Observed: 10.51 ft at 12:15AM May 22, 2022Observed: 10.51 ft at 12:30AM May 22, 2022Observed: 10.52 ft at 12:45AM May 22, 2022Observed: 10.51 ft at 1:00AM May 22, 2022Observed: 10.5 ft at 1:15AM May 22, 2022Observed: 10.5 ft at 1:30AM May 22, 2022Observed: 10.49 ft at 1:45AM May 22, 2022Observed: 10.5 ft at 2:00AM May 22, 2022Observed: 10.49 ft at 2:15AM May 22, 2022Observed: 10.49 ft at 2:30AM May 22, 2022Observed: 10.49 ft at 2:45AM May 22, 2022Observed: 10.49 ft at 3:00AM May 22, 2022Observed: 10.48 ft at 3:15AM May 22, 2022Observed: 10.48 ft at 3:30AM May 22, 2022Observed: 10.47 ft at 3:45AM May 22, 2022Observed: 10.47 ft at 4:00AM May 22, 2022Observed: 10.47 ft at 4:15AM May 22, 2022Observed: 10.46 ft at 4:30AM May 22, 2022Observed: 10.47 ft at 4:45AM May 22, 2022Observed: 10.46 ft at 5:00AM May 22, 2022Observed: 10.47 ft at 5:15AM May 22, 2022Observed: 10.46 ft at 5:30AM May 22, 2022Observed: 10.46 ft at 5:45AM May 22, 2022Observed: 10.46 ft at 6:00AM May 22, 2022Observed: 10.45 ft at 6:15AM May 22, 2022Observed: 10.45 ft at 6:30AM May 22, 2022Observed: 10.46 ft at 6:45AM May 22, 2022Observed: 10.45 ft at 7:00AM May 22, 2022Observed: 10.45 ft at 7:15AM May 22, 2022Observed: 10.45 ft at 7:16AM May 22, 2022Observed: 10.45 ft at 7:30AM May 22, 2022Observed: 10.45 ft at 7:31AM May 22, 2022Observed: 10.44 ft at 7:45AM May 22, 2022Observed: 10.44 ft at 7:46AM May 22, 2022Observed: 10.44 ft at 8:00AM May 22, 2022Observed: 10.43 ft at 8:15AM May 22, 2022Observed: 10.42 ft at 8:30AM May 22, 2022Observed: 10.42 ft at 8:45AM May 22, 2022Observed: 10.4 ft at 9:00AM May 22, 2022Observed: 10.41 ft at 9:15AM May 22, 2022Observed: 10.4 ft at 9:30AM May 22, 2022Observed: 10.4 ft at 9:45AM May 22, 2022Observed: 10.39 ft at 10:00AM May 22, 2022Observed: 10.39 ft at 10:15AM May 22, 2022Observed: 10.37 ft at 10:30AM May 22, 2022Observed: 10.38 ft at 10:45AM May 22, 2022Observed: 10.38 ft at 11:00AM May 22, 2022Observed: 10.39 ft at 11:15AM May 22, 2022Observed: 10.38 ft at 11:30AM May 22, 2022Observed: 10.37 ft at 11:45AM May 22, 2022Observed: 10.37 ft at 12:00PM May 22, 2022Observed: 10.37 ft at 12:15PM May 22, 2022Observed: 10.37 ft at 12:30PM May 22, 2022Observed: 10.37 ft at 12:45PM May 22, 2022Observed: 10.37 ft at 1:00PM May 22, 2022Observed: 10.36 ft at 1:15PM May 22, 2022Observed: 10.37 ft at 1:30PM May 22, 2022Observed: 10.33 ft at 1:45PM May 22, 2022Observed: 10.36 ft at 2:00PM May 22, 2022Observed: 10.35 ft at 2:15PM May 22, 2022Observed: 10.35 ft at 2:30PM May 22, 2022Observed: 10.35 ft at 2:45PM May 22, 2022Observed: 10.36 ft at 3:00PM May 22, 2022Observed: 10.36 ft at 3:15PM May 22, 2022Observed: 10.37 ft at 3:30PM May 22, 2022Observed: 10.36 ft at 3:45PM May 22, 2022Observed: 10.35 ft at 4:00PM May 22, 2022Observed: 10.36 ft at 4:15PM May 22, 2022Observed: 10.36 ft at 4:30PM May 22, 2022Observed: 10.36 ft at 4:45PM May 22, 2022Observed: 10.36 ft at 5:00PM May 22, 2022Observed: 10.35 ft at 5:15PM May 22, 2022Observed: 10.35 ft at 5:30PM May 22, 2022Observed: 10.36 ft at 5:45PM May 22, 2022Observed: 10.36 ft at 6:00PM May 22, 2022Observed: 10.35 ft at 6:15PM May 22, 2022Observed: 10.35 ft at 6:30PM May 22, 2022Observed: 10.35 ft at 6:45PM May 22, 2022Observed: 10.34 ft at 7:00PM May 22, 2022Observed: 10.34 ft at 7:15PM May 22, 2022Observed: 10.34 ft at 7:30PM May 22, 2022Observed: 10.34 ft at 7:45PM May 22, 2022Observed: 10.32 ft at 8:00PM May 22, 2022Observed: 10.32 ft at 8:15PM May 22, 2022Observed: 10.3 ft at 8:30PM May 22, 2022Observed: 10.29 ft at 8:45PM May 22, 2022Observed: 10.29 ft at 9:00PM May 22, 2022Observed: 10.29 ft at 9:15PM May 22, 2022Observed: 10.28 ft at 9:30PM May 22, 2022Observed: 10.29 ft at 9:45PM May 22, 2022Observed: 10.29 ft at 10:00PM May 22, 2022Observed: 10.28 ft at 10:15PM May 22, 2022Observed: 10.28 ft at 10:30PM May 22, 2022Observed: 10.28 ft at 10:45PM May 22, 2022Observed: 10.27 ft at 11:00PM May 22, 2022Observed: 10.27 ft at 11:15PM May 22, 2022Observed: 10.27 ft at 11:16PM May 22, 2022Observed: 10.27 ft at 11:30PM May 22, 2022Observed: 10.27 ft at 11:31PM May 22, 2022Observed: 10.26 ft at 11:45PM May 22, 2022Observed: 10.26 ft at 11:46PM May 22, 2022Observed: 10.26 ft at 12:00AM May 23, 2022Observed: 10.26 ft at 12:15AM May 23, 2022Observed: 10.25 ft at 12:30AM May 23, 2022Observed: 10.25 ft at 12:45AM May 23, 2022Observed: 10.24 ft at 1:00AM May 23, 2022Observed: 10.25 ft at 1:15AM May 23, 2022Observed: 10.24 ft at 1:30AM May 23, 2022Observed: 10.23 ft at 1:45AM May 23, 2022Observed: 10.23 ft at 2:00AM May 23, 2022Observed: 10.22 ft at 2:15AM May 23, 2022Observed: 10.22 ft at 2:30AM May 23, 2022Observed: 10.22 ft at 2:45AM May 23, 2022Observed: 10.22 ft at 3:00AM May 23, 2022Observed: 10.22 ft at 3:15AM May 23, 2022Observed: 10.21 ft at 3:30AM May 23, 2022Observed: 10.21 ft at 3:45AM May 23, 2022Observed: 10.2 ft at 4:00AM May 23, 2022Observed: 10.2 ft at 4:15AM May 23, 2022Observed: 10.2 ft at 4:30AM May 23, 2022Observed: 10.19 ft at 4:45AM May 23, 2022Observed: 10.18 ft at 5:00AM May 23, 2022Observed: 10.19 ft at 5:15AM May 23, 2022Observed: 10.19 ft at 5:30AM May 23, 2022Observed: 10.18 ft at 5:45AM May 23, 2022Observed: 10.18 ft at 6:00AM May 23, 2022Observed: 10.17 ft at 6:15AM May 23, 2022Observed: 10.17 ft at 6:30AM May 23, 2022Observed: 10.17 ft at 6:45AM May 23, 2022Observed: 10.17 ft at 7:00AM May 23, 2022Observed: 10.17 ft at 7:15AM May 23, 2022Observed: 10.16 ft at 7:30AM May 23, 2022Observed: 10.16 ft at 7:45AM May 23, 2022Observed: 10.15 ft at 8:00AM May 23, 2022Observed: 10.15 ft at 8:15AM May 23, 2022Observed: 10.14 ft at 8:30AM May 23, 2022Observed: 10.14 ft at 8:45AM May 23, 2022Observed: 10.13 ft at 9:00AM May 23, 2022Observed: 10.13 ft at 9:15AM May 23, 2022Observed: 10.13 ft at 9:30AM May 23, 2022Observed: 10.14 ft at 9:45AM May 23, 2022Observed: 10.12 ft at 10:00AM May 23, 2022Observed: 10.12 ft at 10:15AM May 23, 2022Observed: 10.1 ft at 10:30AM May 23, 2022Observed: 10.11 ft at 10:45AM May 23, 2022Observed: 10.11 ft at 11:00AM May 23, 2022Observed: 10.09 ft at 11:15AM May 23, 2022Observed: 10.08 ft at 11:30AM May 23, 2022Observed: 10.09 ft at 11:45AM May 23, 2022Observed: 10.09 ft at 12:00PM May 23, 2022Observed: 10.08 ft at 12:15PM May 23, 2022Observed: 10.1 ft at 12:30PM May 23, 2022Observed: 10.12 ft at 12:45PM May 23, 2022Observed: 10.09 ft at 1:00PM May 23, 2022Observed: 10.09 ft at 1:15PM May 23, 2022Observed: 10.1 ft at 1:30PM May 23, 2022Observed: 10.08 ft at 1:45PM May 23, 2022Observed: 10.09 ft at 2:00PM May 23, 2022Observed: 10.09 ft at 2:15PM May 23, 2022Observed: 10.08 ft at 2:30PM May 23, 2022Observed: 10.07 ft at 2:45PM May 23, 2022Observed: 10.07 ft at 3:00PM May 23, 2022Observed: 10.07 ft at 3:15PM May 23, 2022Observed: 10.07 ft at 3:30PM May 23, 2022Observed: 10.06 ft at 3:45PM May 23, 2022Observed: 10.06 ft at 4:00PM May 23, 2022Observed: 10.05 ft at 4:15PM May 23, 2022Observed: 10.05 ft at 4:30PM May 23, 2022Observed: 10.05 ft at 4:45PM May 23, 2022Observed: 10.05 ft at 5:00PM May 23, 2022Observed: 10.04 ft at 5:15PM May 23, 2022Observed: 10.04 ft at 5:30PM May 23, 2022Observed: 10.02 ft at 5:45PM May 23, 2022Observed: 10.03 ft at 6:00PM May 23, 2022Observed: 10.02 ft at 6:15PM May 23, 2022Observed: 10.02 ft at 6:30PM May 23, 2022Observed: 10.02 ft at 6:45PM May 23, 2022Observed: 10.02 ft at 7:00PM May 23, 2022Observed: 10.02 ft at 7:15PM May 23, 2022Observed: 10.01 ft at 7:30PM May 23, 2022Observed: 10.01 ft at 7:45PM May 23, 2022Observed: 10 ft at 8:00PM May 23, 2022Observed: 9.99 ft at 8:15PM May 23, 2022Observed: 9.98 ft at 8:30PM May 23, 2022Observed: 9.99 ft at 8:45PM May 23, 2022Observed: 9.98 ft at 9:00PM May 23, 2022Observed: 9.99 ft at 9:15PM May 23, 2022Observed: 9.98 ft at 9:30PM May 23, 2022Observed: 9.97 ft at 9:45PM May 23, 2022Observed: 9.97 ft at 10:00PM May 23, 2022Observed: 9.96 ft at 10:15PM May 23, 2022Observed: 9.96 ft at 10:30PM May 23, 2022Observed: 9.95 ft at 10:45PM May 23, 2022Observed: 9.95 ft at 11:00PM May 23, 2022Observed: 9.94 ft at 11:15PM May 23, 2022Observed: 9.94 ft at 11:16PM May 23, 2022Observed: 9.94 ft at 11:30PM May 23, 2022Observed: 9.94 ft at 11:31PM May 23, 2022Observed: 9.94 ft at 11:45PM May 23, 2022Observed: 9.94 ft at 11:46PM May 23, 2022Observed: 9.93 ft at 12:00AM May 24, 2022Observed: 9.93 ft at 12:15AM May 24, 2022Observed: 9.93 ft at 12:30AM May 24, 2022Observed: 9.92 ft at 12:45AM May 24, 2022Observed: 9.92 ft at 1:00AM May 24, 2022Observed: 9.92 ft at 1:15AM May 24, 2022Observed: 9.92 ft at 1:30AM May 24, 2022Observed: 9.92 ft at 1:45AM May 24, 2022Observed: 9.91 ft at 2:00AM May 24, 2022Observed: 9.91 ft at 2:15AM May 24, 2022Observed: 9.91 ft at 2:30AM May 24, 2022Observed: 9.9 ft at 2:45AM May 24, 2022Observed: 9.9 ft at 3:00AM May 24, 2022Observed: 9.9 ft at 3:15AM May 24, 2022Observed: 9.9 ft at 3:30AM May 24, 2022Observed: 9.89 ft at 3:45AM May 24, 2022Observed: 9.89 ft at 4:00AM May 24, 2022Observed: 9.89 ft at 4:15AM May 24, 2022Observed: 9.89 ft at 4:30AM May 24, 2022Observed: 9.88 ft at 4:45AM May 24, 2022Observed: 9.88 ft at 5:00AM May 24, 2022Observed: 9.88 ft at 5:15AM May 24, 2022Observed: 9.87 ft at 5:30AM May 24, 2022Observed: 9.87 ft at 5:45AM May 24, 2022Observed: 9.87 ft at 6:00AM May 24, 2022Observed: 9.86 ft at 6:15AM May 24, 2022Observed: 9.86 ft at 6:30AM May 24, 2022Observed: 9.86 ft at 6:45AM May 24, 2022Observed: 9.86 ft at 7:00AM May 24, 2022Observed: 9.85 ft at 7:15AM May 24, 2022Observed: 9.85 ft at 7:16AM May 24, 2022Observed: 9.85 ft at 7:30AM May 24, 2022Observed: 9.85 ft at 7:31AM May 24, 2022Observed: 9.84 ft at 7:45AM May 24, 2022Observed: 9.84 ft at 7:46AM May 24, 2022Observed: 9.84 ft at 8:00AM May 24, 2022Observed: 9.84 ft at 8:15AM May 24, 2022Observed: 9.8 ft at 8:30AM May 24, 2022Observed: 9.83 ft at 8:45AM May 24, 2022Observed: 9.83 ft at 9:00AM May 24, 2022Observed: 9.83 ft at 9:15AM May 24, 2022Observed: 9.82 ft at 9:30AM May 24, 2022Observed: 9.82 ft at 9:45AM May 24, 2022Observed: 9.81 ft at 10:00AM May 24, 2022Observed: 9.81 ft at 10:15AM May 24, 2022Observed: 9.8 ft at 10:30AM May 24, 2022Observed: 9.8 ft at 10:45AM May 24, 2022Observed: 9.81 ft at 11:00AM May 24, 2022Observed: 9.81 ft at 11:15AM May 24, 2022Observed: 9.81 ft at 11:30AM May 24, 2022Observed: 9.81 ft at 11:45AM May 24, 2022Observed: 9.81 ft at 12:00PM May 24, 2022Observed: 9.81 ft at 12:15PM May 24, 2022Observed: 9.8 ft at 12:30PM May 24, 2022Observed: 9.8 ft at 12:45PM May 24, 2022Observed: 9.8 ft at 1:00PM May 24, 2022Observed: 9.79 ft at 1:15PM May 24, 2022Observed: 9.8 ft at 1:30PM May 24, 2022Observed: 9.79 ft at 1:45PM May 24, 2022Observed: 9.78 ft at 2:00PM May 24, 2022Observed: 9.78 ft at 2:15PM May 24, 2022Observed: 9.78 ft at 2:30PM May 24, 2022Observed: 9.77 ft at 2:45PM May 24, 2022Observed: 9.76 ft at 3:00PM May 24, 2022Observed: 9.77 ft at 3:15PM May 24, 2022Observed: 9.77 ft at 3:16PM May 24, 2022Observed: 9.77 ft at 3:30PM May 24, 2022Observed: 9.77 ft at 3:31PM May 24, 2022Observed: 9.77 ft at 3:45PM May 24, 2022Observed: 9.77 ft at 3:46PM May 24, 2022Observed: 9.76 ft at 4:00PM May 24, 2022Observed: 9.76 ft at 4:15PM May 24, 2022Observed: 9.76 ft at 4:30PM May 24, 2022Observed: 9.73 ft at 4:45PM May 24, 2022Observed: 9.71 ft at 5:00PM May 24, 2022Observed: 9.69 ft at 5:15PM May 24, 2022Observed: 9.7 ft at 5:30PM May 24, 2022Observed: 9.71 ft at 5:45PM May 24, 2022Observed: 9.71 ft at 6:00PM May 24, 2022Observed: 9.71 ft at 6:15PM May 24, 2022Observed: 9.71 ft at 6:30PM May 24, 2022Observed: 9.71 ft at 6:45PM May 24, 2022Observed: 9.71 ft at 7:00PM May 24, 2022Observed: 9.7 ft at 7:15PM May 24, 2022Observed: 9.7 ft at 7:30PM May 24, 2022Observed: 9.71 ft at 7:45PM May 24, 2022Observed: 9.71 ft at 8:00PM May 24, 2022Observed: 9.7 ft at 8:15PM May 24, 2022Observed: 9.7 ft at 8:30PM May 24, 2022Observed: 9.7 ft at 8:45PM May 24, 2022Observed: 9.69 ft at 9:00PM May 24, 2022Observed: 9.69 ft at 9:15PM May 24, 2022Observed: 9.69 ft at 9:30PM May 24, 2022Observed: 9.68 ft at 9:45PM May 24, 2022Observed: 9.68 ft at 10:00PM May 24, 2022Observed: 9.68 ft at 10:15PM May 24, 2022Observed: 9.67 ft at 10:30PM May 24, 2022Observed: 9.68 ft at 10:45PM May 24, 2022Observed: 9.68 ft at 11:00PM May 24, 2022Observed: 9.66 ft at 11:15PM May 24, 2022Observed: 9.66 ft at 11:16PM May 24, 2022Observed: 9.67 ft at 11:30PM May 24, 2022Observed: 9.67 ft at 11:31PM May 24, 2022Observed: 9.67 ft at 11:45PM May 24, 2022Observed: 9.67 ft at 11:46PM May 24, 2022Observed: 9.66 ft at 12:00AM May 25, 2022Observed: 9.66 ft at 12:15AM May 25, 2022Observed: 9.66 ft at 12:30AM May 25, 2022Observed: 9.65 ft at 12:45AM May 25, 2022Observed: 9.65 ft at 1:00AM May 25, 2022Observed: 9.65 ft at 1:15AM May 25, 2022Observed: 9.65 ft at 1:30AM May 25, 2022Observed: 9.65 ft at 1:45AM May 25, 2022Observed: 9.65 ft at 2:00AM May 25, 2022Observed: 9.65 ft at 2:15AM May 25, 2022Observed: 9.64 ft at 2:30AM May 25, 2022Observed: 9.65 ft at 2:45AM May 25, 2022Observed: 9.64 ft at 3:00AM May 25, 2022Observed: 9.64 ft at 3:15AM May 25, 2022Observed: 9.63 ft at 3:30AM May 25, 2022Observed: 9.63 ft at 3:45AM May 25, 2022Observed: 9.63 ft at 4:00AM May 25, 2022Observed: 9.63 ft at 4:15AM May 25, 2022Observed: 9.63 ft at 4:30AM May 25, 2022Observed: 9.63 ft at 4:45AM May 25, 2022Observed: 9.63 ft at 5:00AM May 25, 2022USGS--Water Resources of the United StatesAKRI4(plotting HGIRG) Graph Created (5:20AM May 25, 2022)ObservedLatest observed value: 9.63 ft at 5:00 AM CDT 25-May-2022. Flood Stage is 16 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

NOTE: Forecasts for the Big Sioux River at Akron are issued as needed during times of high water, but are not routinely available.

Vertical Datum updated from NGVD29 to NAVD88 by gauge owner.

Return to Area Map
Upstream Gauge - above Hawarden Upstream Gauge Downstream Gauge Downstream Gauge - near Richland
Flood Categories (in feet)
Major Flood Stage: 20
Moderate Flood Stage: 18
Flood Stage: 16
Action Stage: 14
Low Stage (in feet): -9999

Historic Crests
(1) 25.59 ft on 06/18/2014
(2) 23.94 ft on 03/16/2019
(3) 23.50 ft on 06/23/2018
(4) 23.38 ft on 04/26/2001
(5) 23.05 ft on 05/10/1993
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 17.67 ft on 04/01/2020
(2) 23.94 ft on 03/16/2019
(3) 23.50 ft on 06/23/2018
(4) 16.11 ft on 05/23/2017
(5) 18.20 ft on 05/03/2016
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:14
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
23.25 levee gates at Riverside in Sioux City will be closed.
23 the higher levees on the Iowa side of the river are in danger of being overtopped, Highway 50 near Westfield will be flooded, and the bridge east of Jefferson will be overtopped.
22 Highway 48 begins to flood where the railroad tracks cross, and Iowa Highway 3 begins to flood on the east side of the river.
21.5 Highway 48 near the intersection with Iowa Highway 12 north of Akron begins to flood.
20 Highway 48 near Akron is flooded.
19.5 several farm houses are flooded.
17 about 6500 acres of farm land are flooded.
16 several farm levees are overtopped with significant flooding of agricultural lands.
15 some rural roads on the South Dakota side of the river begin to flood.
12 some very minor flooding of the lowest lying areas along the river begins.
Photos
(1) Upstream View
(2) Downstream View
About This Location Collapse

Latitude: 42.837500° N, Longitude: 96.561667° W, Horizontal Datum: NAD27

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 16 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 1119.53 1135.53 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:
Additional Information Collapse
How low could the river get?
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Sioux Falls Weather Forecast Office
26 Weather Lane
Sioux Falls, SD 57104-0198
(605) 330-4247
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:29 PM 		Disclaimer
Credits
Glossary 		Privacy Policy
About Us
Career Opportunities