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
Boulder Creek (CO) at Boulder Stage (ft)Flow (cfs)Highest Observation: 0.89 ft at 11:38PM Apr 12, 2021Observed: 0.88 ft at 11:53PM Apr 12, 2021Observed: 0.88 ft at 12:08AM Apr 13, 2021Observed: 0.88 ft at 12:23AM Apr 13, 2021Observed: 0.87 ft at 12:38AM Apr 13, 2021Observed: 0.87 ft at 12:53AM Apr 13, 2021Observed: 0.87 ft at 1:08AM Apr 13, 2021Observed: 0.87 ft at 1:23AM Apr 13, 2021Observed: 0.86 ft at 1:38AM Apr 13, 2021Observed: 0.86 ft at 1:53AM Apr 13, 2021Observed: 0.86 ft at 2:08AM Apr 13, 2021Observed: 0.86 ft at 2:23AM Apr 13, 2021Observed: 0.86 ft at 2:38AM Apr 13, 2021Observed: 0.85 ft at 2:53AM Apr 13, 2021Observed: 0.85 ft at 3:08AM Apr 13, 2021Observed: 0.86 ft at 3:23AM Apr 13, 2021Observed: 0.85 ft at 3:38AM Apr 13, 2021Observed: 0.85 ft at 3:53AM Apr 13, 2021Observed: 0.85 ft at 4:08AM Apr 13, 2021Observed: 0.85 ft at 4:23AM Apr 13, 2021Observed: 0.84 ft at 4:38AM Apr 13, 2021Observed: 0.85 ft at 4:53AM Apr 13, 2021Observed: 0.84 ft at 5:08AM Apr 13, 2021Observed: 0.85 ft at 5:23AM Apr 13, 2021Observed: 0.84 ft at 5:38AM Apr 13, 2021Observed: 0.84 ft at 5:53AM Apr 13, 2021Observed: 0.84 ft at 6:08AM Apr 13, 2021Observed: 0.84 ft at 6:23AM Apr 13, 2021Observed: 0.85 ft at 6:38AM Apr 13, 2021Observed: 0.86 ft at 6:53AM Apr 13, 2021Observed: 0.87 ft at 7:08AM Apr 13, 2021Observed: 0.86 ft at 7:23AM Apr 13, 2021Observed: 0.86 ft at 7:38AM Apr 13, 2021Observed: 0.87 ft at 7:53AM Apr 13, 2021Observed: 0.87 ft at 8:08AM Apr 13, 2021Observed: 0.87 ft at 8:23AM Apr 13, 2021Observed: 0.82 ft at 8:38AM Apr 13, 2021Observed: 0.77 ft at 8:53AM Apr 13, 2021Observed: 0.75 ft at 9:08AM Apr 13, 2021Observed: 0.75 ft at 9:23AM Apr 13, 2021Observed: 0.76 ft at 9:38AM Apr 13, 2021Observed: 0.8 ft at 9:53AM Apr 13, 2021Observed: 0.81 ft at 10:08AM Apr 13, 2021Observed: 0.78 ft at 10:23AM Apr 13, 2021Observed: 0.75 ft at 10:38AM Apr 13, 2021Observed: 0.73 ft at 10:53AM Apr 13, 2021Observed: 0.72 ft at 11:08AM Apr 13, 2021Observed: 0.71 ft at 11:23AM Apr 13, 2021Observed: 0.71 ft at 11:38AM Apr 13, 2021Observed: 0.7 ft at 11:53AM Apr 13, 2021Observed: 0.7 ft at 12:08PM Apr 13, 2021Observed: 0.72 ft at 12:23PM Apr 13, 2021Observed: 0.74 ft at 12:38PM Apr 13, 2021Observed: 0.75 ft at 12:53PM Apr 13, 2021Observed: 0.75 ft at 1:08PM Apr 13, 2021Observed: 0.75 ft at 1:23PM Apr 13, 2021Observed: 0.75 ft at 1:38PM Apr 13, 2021Observed: 0.74 ft at 1:53PM Apr 13, 2021Observed: 0.74 ft at 2:08PM Apr 13, 2021Observed: 0.72 ft at 2:23PM Apr 13, 2021Observed: 0.7 ft at 2:38PM Apr 13, 2021Observed: 0.69 ft at 2:53PM Apr 13, 2021Observed: 0.68 ft at 3:08PM Apr 13, 2021Observed: 0.68 ft at 3:23PM Apr 13, 2021Observed: 0.68 ft at 3:38PM Apr 13, 2021Observed: 0.67 ft at 3:53PM Apr 13, 2021Observed: 0.67 ft at 4:08PM Apr 13, 2021Observed: 0.74 ft at 4:23PM Apr 13, 2021Observed: 0.76 ft at 4:38PM Apr 13, 2021Observed: 0.75 ft at 4:53PM Apr 13, 2021Observed: 0.75 ft at 5:08PM Apr 13, 2021Observed: 0.74 ft at 5:23PM Apr 13, 2021Observed: 0.74 ft at 5:38PM Apr 13, 2021Observed: 0.74 ft at 5:53PM Apr 13, 2021Observed: 0.74 ft at 6:08PM Apr 13, 2021Observed: 0.74 ft at 6:23PM Apr 13, 2021Observed: 0.74 ft at 6:38PM Apr 13, 2021Observed: 0.74 ft at 6:53PM Apr 13, 2021Observed: 0.74 ft at 7:08PM Apr 13, 2021Observed: 0.74 ft at 7:23PM Apr 13, 2021Observed: 0.74 ft at 7:38PM Apr 13, 2021Observed: 0.75 ft at 7:53PM Apr 13, 2021Observed: 0.75 ft at 8:08PM Apr 13, 2021Observed: 0.76 ft at 8:23PM Apr 13, 2021Observed: 0.76 ft at 8:38PM Apr 13, 2021Observed: 0.77 ft at 8:53PM Apr 13, 2021Observed: 0.78 ft at 9:08PM Apr 13, 2021Observed: 0.78 ft at 9:23PM Apr 13, 2021Observed: 0.78 ft at 9:38PM Apr 13, 2021Observed: 0.79 ft at 9:53PM Apr 13, 2021Observed: 0.8 ft at 10:08PM Apr 13, 2021Observed: 0.81 ft at 10:23PM Apr 13, 2021Observed: 0.81 ft at 10:38PM Apr 13, 2021Observed: 0.81 ft at 10:53PM Apr 13, 2021Observed: 0.81 ft at 11:08PM Apr 13, 2021Observed: 0.82 ft at 11:23PM Apr 13, 2021Observed: 0.82 ft at 11:38PM Apr 13, 2021Observed: 0.83 ft at 11:53PM Apr 13, 2021Observed: 0.83 ft at 12:08AM Apr 14, 2021Observed: 0.83 ft at 12:23AM Apr 14, 2021Observed: 0.82 ft at 12:38AM Apr 14, 2021Observed: 0.82 ft at 12:53AM Apr 14, 2021Observed: 0.81 ft at 1:08AM Apr 14, 2021Observed: 0.82 ft at 1:23AM Apr 14, 2021Observed: 0.81 ft at 1:38AM Apr 14, 2021Observed: 0.81 ft at 1:53AM Apr 14, 2021Observed: 0.81 ft at 2:08AM Apr 14, 2021Observed: 0.81 ft at 2:23AM Apr 14, 2021Observed: 0.81 ft at 2:38AM Apr 14, 2021Observed: 0.8 ft at 2:53AM Apr 14, 2021Observed: 0.8 ft at 3:08AM Apr 14, 2021Observed: 0.79 ft at 3:23AM Apr 14, 2021Observed: 0.79 ft at 3:38AM Apr 14, 2021Observed: 0.79 ft at 3:53AM Apr 14, 2021Observed: 0.79 ft at 4:08AM Apr 14, 2021Observed: 0.79 ft at 4:23AM Apr 14, 2021Observed: 0.79 ft at 4:38AM Apr 14, 2021Observed: 0.78 ft at 4:53AM Apr 14, 2021Observed: 0.78 ft at 5:08AM Apr 14, 2021Observed: 0.78 ft at 5:23AM Apr 14, 2021Observed: 0.78 ft at 5:38AM Apr 14, 2021Observed: 0.78 ft at 5:53AM Apr 14, 2021Observed: 0.77 ft at 6:08AM Apr 14, 2021Observed: 0.77 ft at 6:23AM Apr 14, 2021Observed: 0.77 ft at 6:38AM Apr 14, 2021Observed: 0.77 ft at 6:53AM Apr 14, 2021Observed: 0.76 ft at 7:08AM Apr 14, 2021Observed: 0.76 ft at 7:23AM Apr 14, 2021Observed: 0.76 ft at 7:38AM Apr 14, 2021Observed: 0.75 ft at 7:53AM Apr 14, 2021Observed: 0.75 ft at 8:08AM Apr 14, 2021Observed: 0.75 ft at 8:23AM Apr 14, 2021Observed: 0.75 ft at 8:38AM Apr 14, 2021Observed: 0.75 ft at 8:53AM Apr 14, 2021Observed: 0.75 ft at 9:08AM Apr 14, 2021Observed: 0.75 ft at 9:23AM Apr 14, 2021Observed: 0.74 ft at 9:38AM Apr 14, 2021Observed: 0.74 ft at 9:53AM Apr 14, 2021Observed: 0.74 ft at 10:08AM Apr 14, 2021Observed: 0.74 ft at 10:23AM Apr 14, 2021Observed: 0.74 ft at 10:38AM Apr 14, 2021Observed: 0.74 ft at 10:53AM Apr 14, 2021Observed: 0.74 ft at 11:08AM Apr 14, 2021Observed: 0.74 ft at 11:23AM Apr 14, 2021Observed: 0.74 ft at 11:38AM Apr 14, 2021Observed: 0.73 ft at 11:53AM Apr 14, 2021Observed: 0.73 ft at 12:08PM Apr 14, 2021Observed: 0.73 ft at 12:23PM Apr 14, 2021Observed: 0.73 ft at 12:38PM Apr 14, 2021Observed: 0.73 ft at 12:53PM Apr 14, 2021Observed: 0.73 ft at 1:08PM Apr 14, 2021Observed: 0.72 ft at 1:23PM Apr 14, 2021Observed: 0.71 ft at 1:38PM Apr 14, 2021Observed: 0.72 ft at 1:53PM Apr 14, 2021Observed: 0.72 ft at 2:09PM Apr 14, 2021Observed: 0.71 ft at 2:24PM Apr 14, 2021Observed: 0.71 ft at 2:39PM Apr 14, 2021Observed: 0.71 ft at 2:54PM Apr 14, 2021Observed: 0.71 ft at 3:09PM Apr 14, 2021Observed: 0.71 ft at 3:24PM Apr 14, 2021Observed: 0.7 ft at 3:39PM Apr 14, 2021Observed: 0.7 ft at 3:54PM Apr 14, 2021Observed: 0.7 ft at 4:09PM Apr 14, 2021Observed: 0.7 ft at 4:24PM Apr 14, 2021Observed: 0.7 ft at 4:39PM Apr 14, 2021Observed: 0.7 ft at 4:54PM Apr 14, 2021Observed: 0.7 ft at 5:09PM Apr 14, 2021Observed: 0.71 ft at 5:24PM Apr 14, 2021Observed: 0.71 ft at 5:39PM Apr 14, 2021Observed: 0.71 ft at 5:54PM Apr 14, 2021Observed: 0.71 ft at 6:09PM Apr 14, 2021Observed: 0.75 ft at 6:24PM Apr 14, 2021Observed: 0.81 ft at 6:39PM Apr 14, 2021Observed: 0.83 ft at 6:54PM Apr 14, 2021Observed: 0.84 ft at 7:09PM Apr 14, 2021Observed: 0.86 ft at 7:24PM Apr 14, 2021Observed: 0.86 ft at 7:39PM Apr 14, 2021Observed: 0.87 ft at 7:54PM Apr 14, 2021Observed: 0.87 ft at 8:09PM Apr 14, 2021Observed: 0.85 ft at 8:24PM Apr 14, 2021Observed: 0.82 ft at 8:39PM Apr 14, 2021Observed: 0.82 ft at 8:54PM Apr 14, 2021Observed: 0.82 ft at 9:09PM Apr 14, 2021Observed: 0.82 ft at 9:24PM Apr 14, 2021Observed: 0.82 ft at 9:39PM Apr 14, 2021Observed: 0.83 ft at 9:54PM Apr 14, 2021Observed: 0.83 ft at 10:09PM Apr 14, 2021Observed: 0.84 ft at 10:24PM Apr 14, 2021Observed: 0.83 ft at 10:39PM Apr 14, 2021Observed: 0.83 ft at 10:54PM Apr 14, 2021Observed: 0.83 ft at 11:09PM Apr 14, 2021Observed: 0.83 ft at 11:24PM Apr 14, 2021Observed: 0.82 ft at 11:39PM Apr 14, 2021Observed: 0.82 ft at 11:54PM Apr 14, 2021Observed: 0.82 ft at 12:09AM Apr 15, 2021Observed: 0.82 ft at 12:24AM Apr 15, 2021Observed: 0.81 ft at 12:39AM Apr 15, 2021Observed: 0.81 ft at 12:54AM Apr 15, 2021Observed: 0.81 ft at 1:09AM Apr 15, 2021Observed: 0.81 ft at 1:24AM Apr 15, 2021Observed: 0.81 ft at 1:39AM Apr 15, 2021Observed: 0.81 ft at 1:54AM Apr 15, 2021Observed: 0.81 ft at 2:09AM Apr 15, 2021Observed: 0.8 ft at 2:24AM Apr 15, 2021Observed: 0.8 ft at 2:39AM Apr 15, 2021Observed: 0.8 ft at 2:54AM Apr 15, 2021Observed: 0.8 ft at 3:09AM Apr 15, 2021Observed: 0.79 ft at 3:24AM Apr 15, 2021Observed: 0.79 ft at 3:39AM Apr 15, 2021Observed: 0.79 ft at 3:54AM Apr 15, 2021Observed: 0.79 ft at 4:09AM Apr 15, 2021Observed: 0.79 ft at 4:24AM Apr 15, 2021Observed: 0.79 ft at 4:39AM Apr 15, 2021Observed: 0.79 ft at 4:54AM Apr 15, 2021Observed: 0.79 ft at 5:09AM Apr 15, 2021Observed: 0.79 ft at 5:24AM Apr 15, 2021Observed: 0.79 ft at 5:39AM Apr 15, 2021Observed: 0.79 ft at 5:54AM Apr 15, 2021Observed: 0.79 ft at 6:09AM Apr 15, 2021Observed: 0.78 ft at 6:24AM Apr 15, 2021Observed: 0.78 ft at 6:39AM Apr 15, 2021Observed: 0.78 ft at 6:54AM Apr 15, 2021Observed: 0.78 ft at 7:09AM Apr 15, 2021Observed: 0.78 ft at 7:24AM Apr 15, 2021Observed: 0.78 ft at 7:39AM Apr 15, 2021Observed: 0.78 ft at 7:54AM Apr 15, 2021Observed: 0.78 ft at 8:09AM Apr 15, 2021Observed: 0.78 ft at 8:24AM Apr 15, 2021Observed: 0.78 ft at 8:39AM Apr 15, 2021Observed: 0.78 ft at 8:54AM Apr 15, 2021Observed: 0.77 ft at 9:09AM Apr 15, 2021Observed: 0.77 ft at 9:24AM Apr 15, 2021Observed: 0.77 ft at 9:39AM Apr 15, 2021Observed: 0.77 ft at 9:54AM Apr 15, 2021Observed: 0.77 ft at 10:09AM Apr 15, 2021Observed: 0.77 ft at 10:24AM Apr 15, 2021Observed: 0.76 ft at 10:39AM Apr 15, 2021Observed: 0.76 ft at 10:54AM Apr 15, 2021Observed: 0.76 ft at 11:09AM Apr 15, 2021Observed: 0.77 ft at 11:24AM Apr 15, 2021Observed: 0.76 ft at 11:39AM Apr 15, 2021Observed: 0.76 ft at 11:54AM Apr 15, 2021Observed: 0.76 ft at 12:09PM Apr 15, 2021Observed: 0.76 ft at 12:24PM Apr 15, 2021Observed: 0.77 ft at 12:39PM Apr 15, 2021Observed: 0.76 ft at 12:54PM Apr 15, 2021Observed: 0.76 ft at 1:09PM Apr 15, 2021Observed: 0.76 ft at 1:24PM Apr 15, 2021Observed: 0.75 ft at 1:39PM Apr 15, 2021Observed: 0.76 ft at 1:54PM Apr 15, 2021Observed: 0.76 ft at 2:09PM Apr 15, 2021Observed: 0.76 ft at 2:24PM Apr 15, 2021Observed: 0.76 ft at 2:39PM Apr 15, 2021Observed: 0.76 ft at 2:54PM Apr 15, 2021Observed: 0.76 ft at 3:09PM Apr 15, 2021Observed: 0.76 ft at 3:24PM Apr 15, 2021Observed: 0.76 ft at 3:39PM Apr 15, 2021Observed: 0.77 ft at 3:54PM Apr 15, 2021Observed: 0.79 ft at 4:09PM Apr 15, 2021Observed: 0.81 ft at 4:24PM Apr 15, 2021Observed: 0.81 ft at 4:39PM Apr 15, 2021Observed: 0.81 ft at 4:54PM Apr 15, 2021Observed: 0.86 ft at 5:09PM Apr 15, 2021Observed: 0.87 ft at 5:24PM Apr 15, 2021Observed: 0.87 ft at 5:39PM Apr 15, 2021Observed: 0.87 ft at 5:54PM Apr 15, 2021Observed: 0.86 ft at 6:09PM Apr 15, 2021Observed: 0.86 ft at 6:24PM Apr 15, 2021Observed: 0.85 ft at 6:39PM Apr 15, 2021Observed: 0.83 ft at 6:54PM Apr 15, 2021Observed: 0.84 ft at 7:09PM Apr 15, 2021Observed: 0.84 ft at 7:24PM Apr 15, 2021Observed: 0.84 ft at 7:39PM Apr 15, 2021Observed: 0.84 ft at 7:54PM Apr 15, 2021Observed: 0.84 ft at 8:09PM Apr 15, 2021Observed: 0.83 ft at 8:24PM Apr 15, 2021Observed: 0.83 ft at 8:39PM Apr 15, 2021Observed: 0.83 ft at 8:54PM Apr 15, 2021Observed: 0.84 ft at 9:09PM Apr 15, 2021Observed: 0.84 ft at 9:24PM Apr 15, 2021Observed: 0.84 ft at 9:39PM Apr 15, 2021Observed: 0.82 ft at 9:54PM Apr 15, 2021Observed: 0.82 ft at 10:09PM Apr 15, 2021Observed: 0.82 ft at 10:24PM Apr 15, 2021Observed: 0.8 ft at 10:39PM Apr 15, 2021Observed: 0.8 ft at 10:54PM Apr 15, 2021Observed: 0.79 ft at 11:09PM Apr 15, 2021Observed: 0.79 ft at 11:24PM Apr 15, 2021Observed: 0.79 ft at 11:39PM Apr 15, 2021Observed: 0.78 ft at 11:54PM Apr 15, 2021Observed: 0.78 ft at 12:09AM Apr 16, 2021Observed: 0.78 ft at 12:24AM Apr 16, 2021Observed: 0.77 ft at 12:39AM Apr 16, 2021Observed: 0.77 ft at 12:54AM Apr 16, 2021Observed: 0.77 ft at 1:09AM Apr 16, 2021Observed: 0.76 ft at 1:24AM Apr 16, 2021Observed: 0.76 ft at 1:39AM Apr 16, 2021Observed: 0.76 ft at 1:54AM Apr 16, 2021Observed: 0.76 ft at 2:09AM Apr 16, 2021Observed: 0.76 ft at 2:24AM Apr 16, 2021Observed: 0.75 ft at 2:39AM Apr 16, 2021Observed: 0.75 ft at 2:54AM Apr 16, 2021Observed: 0.75 ft at 3:09AM Apr 16, 2021Observed: 0.75 ft at 3:24AM Apr 16, 2021Observed: 0.75 ft at 3:39AM Apr 16, 2021Observed: 0.74 ft at 3:54AM Apr 16, 2021Observed: 0.74 ft at 4:09AM Apr 16, 2021Observed: 0.74 ft at 4:24AM Apr 16, 2021Observed: 0.73 ft at 4:39AM Apr 16, 2021Observed: 0.72 ft at 4:54AM Apr 16, 2021Observed: 0.72 ft at 5:09AM Apr 16, 2021Observed: 0.72 ft at 5:24AM Apr 16, 2021Observed: 0.72 ft at 5:39AM Apr 16, 2021Observed: 0.72 ft at 5:54AM Apr 16, 2021Observed: 0.71 ft at 6:09AM Apr 16, 2021Observed: 0.71 ft at 6:24AM Apr 16, 2021Observed: 0.71 ft at 6:39AM Apr 16, 2021Observed: 0.71 ft at 6:54AM Apr 16, 2021Observed: 0.71 ft at 7:09AM Apr 16, 2021Observed: 0.7 ft at 7:24AM Apr 16, 2021Observed: 0.7 ft at 7:39AM Apr 16, 2021Observed: 0.71 ft at 7:54AM Apr 16, 2021Observed: 0.71 ft at 8:09AM Apr 16, 2021Observed: 0.71 ft at 8:24AM Apr 16, 2021Observed: 0.72 ft at 8:39AM Apr 16, 2021Observed: 0.73 ft at 8:54AM Apr 16, 2021Observed: 0.73 ft at 9:09AM Apr 16, 2021Observed: 0.74 ft at 9:24AM Apr 16, 2021Observed: 0.74 ft at 9:39AM Apr 16, 2021Observed: 0.74 ft at 9:54AM Apr 16, 2021Observed: 0.74 ft at 10:09AM Apr 16, 2021Observed: 0.75 ft at 10:24AM Apr 16, 2021Observed: 0.76 ft at 10:39AM Apr 16, 2021Observed: 0.77 ft at 10:54AM Apr 16, 2021Observed: 0.78 ft at 11:09AM Apr 16, 2021Observed: 0.78 ft at 11:24AM Apr 16, 2021Observed: 0.78 ft at 11:39AM Apr 16, 2021Observed: 0.77 ft at 11:54AM Apr 16, 2021Observed: 0.77 ft at 12:09PM Apr 16, 2021Observed: 0.76 ft at 12:24PM Apr 16, 2021Observed: 0.76 ft at 12:39PM Apr 16, 2021Observed: 0.75 ft at 12:54PM Apr 16, 2021Observed: 0.75 ft at 1:09PM Apr 16, 2021Observed: 0.75 ft at 1:24PM Apr 16, 2021Observed: 0.74 ft at 1:54PM Apr 16, 2021Observed: 0.73 ft at 2:09PM Apr 16, 2021Observed: 0.74 ft at 2:39PM Apr 16, 2021Observed: 0.74 ft at 2:54PM Apr 16, 2021Observed: 0.74 ft at 3:09PM Apr 16, 2021Observed: 0.73 ft at 3:24PM Apr 16, 2021Observed: 0.73 ft at 3:39PM Apr 16, 2021Observed: 0.73 ft at 3:54PM Apr 16, 2021Observed: 0.73 ft at 4:09PM Apr 16, 2021Observed: 0.73 ft at 4:24PM Apr 16, 2021Observed: 0.73 ft at 4:39PM Apr 16, 2021Observed: 0.74 ft at 4:54PM Apr 16, 2021Observed: 0.73 ft at 5:09PM Apr 16, 2021Observed: 0.73 ft at 5:24PM Apr 16, 2021Observed: 0.74 ft at 5:39PM Apr 16, 2021Observed: 0.74 ft at 5:54PM Apr 16, 2021Observed: 0.74 ft at 6:09PM Apr 16, 2021Observed: 0.75 ft at 6:24PM Apr 16, 2021Observed: 0.75 ft at 6:39PM Apr 16, 2021Observed: 0.76 ft at 6:54PM Apr 16, 2021Observed: 0.77 ft at 7:09PM Apr 16, 2021Observed: 0.78 ft at 7:24PM Apr 16, 2021Observed: 0.78 ft at 7:39PM Apr 16, 2021Observed: 0.79 ft at 7:54PM Apr 16, 2021Observed: 0.79 ft at 8:09PM Apr 16, 2021Observed: 0.81 ft at 8:24PM Apr 16, 2021Observed: 0.82 ft at 8:39PM Apr 16, 2021Observed: 0.84 ft at 8:54PM Apr 16, 2021Observed: 0.84 ft at 9:09PM Apr 16, 2021Observed: 0.84 ft at 9:24PM Apr 16, 2021Observed: 0.84 ft at 9:39PM Apr 16, 2021Observed: 0.84 ft at 9:54PM Apr 16, 2021Observed: 0.84 ft at 10:09PM Apr 16, 2021Observed: 0.83 ft at 10:24PM Apr 16, 2021Observed: 0.83 ft at 10:39PM Apr 16, 2021Observed: 0.83 ft at 10:54PM Apr 16, 2021Observed: 0.84 ft at 11:09PM Apr 16, 2021Observed: 0.83 ft at 11:24PM Apr 16, 2021Observed: 0.83 ft at 11:39PM Apr 16, 2021Observed: 0.83 ft at 11:54PM Apr 16, 2021Observed: 0.84 ft at 12:09AM Apr 17, 2021Observed: 0.83 ft at 12:24AM Apr 17, 2021Observed: 0.84 ft at 12:39AM Apr 17, 2021Observed: 0.84 ft at 12:54AM Apr 17, 2021Observed: 0.84 ft at 1:09AM Apr 17, 2021Observed: 0.84 ft at 1:24AM Apr 17, 2021Observed: 0.84 ft at 1:39AM Apr 17, 2021Observed: 0.84 ft at 1:54AM Apr 17, 2021Observed: 0.83 ft at 2:09AM Apr 17, 2021Observed: 0.82 ft at 2:24AM Apr 17, 2021Observed: 0.82 ft at 2:39AM Apr 17, 2021Observed: 0.8 ft at 2:54AM Apr 17, 2021Observed: 0.8 ft at 3:09AM Apr 17, 2021Observed: 0.79 ft at 3:24AM Apr 17, 2021Observed: 0.78 ft at 3:39AM Apr 17, 2021Observed: 0.79 ft at 3:54AM Apr 17, 2021Observed: 0.78 ft at 4:09AM Apr 17, 2021Observed: 0.78 ft at 4:24AM Apr 17, 2021Observed: 0.78 ft at 4:39AM Apr 17, 2021Observed: 0.77 ft at 4:54AM Apr 17, 2021Observed: 0.76 ft at 5:09AM Apr 17, 2021Observed: 0.76 ft at 5:24AM Apr 17, 2021Observed: 0.76 ft at 5:39AM Apr 17, 2021Observed: 0.75 ft at 5:54AM Apr 17, 2021Observed: 0.75 ft at 6:09AM Apr 17, 2021Observed: 0.75 ft at 6:24AM Apr 17, 2021Observed: 0.75 ft at 6:39AM Apr 17, 2021Observed: 0.75 ft at 6:54AM Apr 17, 2021Observed: 0.75 ft at 7:09AM Apr 17, 2021Observed: 0.74 ft at 7:24AM Apr 17, 2021Observed: 0.74 ft at 7:39AM Apr 17, 2021Observed: 0.74 ft at 7:54AM Apr 17, 2021Observed: 0.74 ft at 8:09AM Apr 17, 2021Observed: 0.74 ft at 8:24AM Apr 17, 2021Observed: 0.74 ft at 8:39AM Apr 17, 2021Observed: 0.74 ft at 8:54AM Apr 17, 2021Observed: 0.74 ft at 9:09AM Apr 17, 2021Observed: 0.73 ft at 9:24AM Apr 17, 2021Observed: 0.73 ft at 9:39AM Apr 17, 2021Observed: 0.73 ft at 9:54AM Apr 17, 2021Observed: 0.74 ft at 10:09AM Apr 17, 2021Observed: 0.73 ft at 10:24AM Apr 17, 2021Observed: 0.73 ft at 10:39AM Apr 17, 2021Observed: 0.73 ft at 10:54AM Apr 17, 2021Observed: 0.73 ft at 11:09AM Apr 17, 2021Observed: 0.73 ft at 11:24AM Apr 17, 2021Observed: 0.73 ft at 11:39AM Apr 17, 2021Observed: 0.74 ft at 11:54AM Apr 17, 2021Observed: 0.73 ft at 12:09PM Apr 17, 2021Observed: 0.73 ft at 12:24PM Apr 17, 2021Observed: 0.73 ft at 12:39PM Apr 17, 2021Observed: 0.74 ft at 12:54PM Apr 17, 2021Observed: 0.74 ft at 1:09PM Apr 17, 2021Observed: 0.75 ft at 1:24PM Apr 17, 2021Observed: 0.75 ft at 1:39PM Apr 17, 2021Observed: 0.76 ft at 1:54PM Apr 17, 2021Observed: 0.76 ft at 2:09PM Apr 17, 2021Observed: 0.76 ft at 2:24PM Apr 17, 2021Observed: 0.76 ft at 2:39PM Apr 17, 2021Observed: 0.77 ft at 2:54PM Apr 17, 2021Observed: 0.77 ft at 3:09PM Apr 17, 2021Observed: 0.77 ft at 3:24PM Apr 17, 2021Observed: 0.78 ft at 3:39PM Apr 17, 2021Observed: 0.78 ft at 3:54PM Apr 17, 2021Observed: 0.78 ft at 4:09PM Apr 17, 2021Observed: 0.78 ft at 4:24PM Apr 17, 2021Observed: 0.79 ft at 4:39PM Apr 17, 2021Observed: 0.79 ft at 4:54PM Apr 17, 2021Observed: 0.79 ft at 5:09PM Apr 17, 2021Observed: 0.79 ft at 5:24PM Apr 17, 2021Observed: 0.78 ft at 5:39PM Apr 17, 2021Observed: 0.79 ft at 5:54PM Apr 17, 2021Observed: 0.79 ft at 6:09PM Apr 17, 2021Observed: 0.79 ft at 6:24PM Apr 17, 2021Observed: 0.79 ft at 6:39PM Apr 17, 2021Observed: 0.79 ft at 6:54PM Apr 17, 2021Observed: 0.79 ft at 7:09PM Apr 17, 2021Observed: 0.8 ft at 7:24PM Apr 17, 2021Observed: 0.8 ft at 7:39PM Apr 17, 2021Observed: 0.82 ft at 7:54PM Apr 17, 2021Observed: 0.81 ft at 8:09PM Apr 17, 2021Observed: 0.81 ft at 8:24PM Apr 17, 2021Observed: 0.81 ft at 8:39PM Apr 17, 2021Observed: 0.81 ft at 8:54PM Apr 17, 2021Observed: 0.81 ft at 9:09PM Apr 17, 2021Observed: 0.81 ft at 9:24PM Apr 17, 2021Observed: 0.82 ft at 9:39PM Apr 17, 2021Observed: 0.82 ft at 9:54PM Apr 17, 2021Observed: 0.82 ft at 10:09PM Apr 17, 2021Observed: 0.83 ft at 10:24PM Apr 17, 2021Observed: 0.83 ft at 10:39PM Apr 17, 2021Observed: 0.83 ft at 10:54PM Apr 17, 2021Observed: 0.82 ft at 11:09PM Apr 17, 2021MHFDBOCC2(plotting HGIRZ) Graph Created (11:30PM Apr 17, 2021)ObservedLatest observed value: 0.82 ft at 11:09 PM MDT 17-Apr-2021. Flood Stage is 8 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Forecasts for the Boulder Creek (CO) at Boulder are issued as needed during times of high water, but are not routinely available.
Return to Area Map
Upstream Gauge - near Orodell Upstream Gauge Downstream Gauge Downstream Gauge - near Kersey
Flood Categories (in feet)
Major Flood Stage: 12.5
Moderate Flood Stage: 10
Flood Stage: 8
Action Stage: 5.5
Low Stage (in feet): -9999

Historic Crests
(1) 8.18 ft on 09/12/2013
(2) 5.76 ft on 08/14/2008
(3) 5.10 ft on 05/30/2014
(4) 4.43 ft on 07/13/2011
(5) 4.24 ft on 06/14/2015
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 4.00 ft on 06/14/2016 (P)
(2) 4.24 ft on 06/14/2015
(3) 5.10 ft on 05/30/2014
(4) 8.18 ft on 09/12/2013
(5) 3.74 ft on 07/07/2012
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
13.5 There is extensive flooding of buildings and streets near Boulder Creek in the city of Boulder.
13 Water flows over or around numerous bridges crossing Boulder Creek.
12.5 Buildings close to Boulder Creek between 9th Street and Broadway, Folsom and 28th Streets and between Arapahoe Avenue and Foothills Parkway flood in the city of Boulder.
10 Boulder Creek flows into parking lots and approaches buildings in several areas in the city of Boulder. Boulder Creek rises to the bottom of the Arapahoe Avenue Bridge.
8 Boulder Creek Trail (bike path) is inundated with minor overbank flow in the city of Boulder. This level represents a flood that has a 10-percent chance of being equaled or exceeded in any given year. For more information click here.
5.5 Sections of the Boulder Creek Trail (bike path) flood.
Photos
(1) Looking Upstream
(2) Looking Downstream
About This Location Collapse

Latitude: 40.015000° N, Longitude: 105.279000° W, Horizontal Datum: NAD27

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 8 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 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 5340 5348 Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  
Additional Information Collapse
Observations provided by the Mile High Flood District
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
Denver/Boulder Weather Forecast Office
325 Broadway
Boulder, CO 80305-3328
(303) 494-4221
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:28 PM 		Disclaimer
Credits
Glossary 		Privacy Policy
About Us
Career Opportunities