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
    Lake Charles Radar
    Fort Polk Radar
    Regional 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
 

Web Portal Changes:

  • AHPS - water.weather.gov- Scheduled operations ends on Tuesday, May 28th, 2024
  • Please see water.noaa.gov/.  Bookmark it NOW!  The pages will automatically redirect to water.noaa.gov until May 28, 2025.
  • To go to a specific gauge location  - use water.noaa.gov/gauges/NWSLI - where NWSLI is the five character ID of your favorite location.
  • Other Important URL changes - Service Change Notice 24-29 

Please visit https://www.weather.gov/owp/operations for more information.



Hydrograph River at a Glance Download
Mermentau River at Mermentau Stage (ft)Observed: 3.53 ft at 12:30AM May 14, 2024Observed: 3.57 ft at 12:45AM May 14, 2024Observed: 3.59 ft at 1:00AM May 14, 2024Observed: 3.58 ft at 1:15AM May 14, 2024Observed: 3.61 ft at 1:30AM May 14, 2024Observed: 3.62 ft at 1:45AM May 14, 2024Observed: 3.63 ft at 2:00AM May 14, 2024Observed: 3.65 ft at 2:15AM May 14, 2024Observed: 3.67 ft at 2:30AM May 14, 2024Observed: 3.69 ft at 2:45AM May 14, 2024Observed: 3.69 ft at 3:00AM May 14, 2024Observed: 3.69 ft at 3:15AM May 14, 2024Observed: 3.71 ft at 3:30AM May 14, 2024Observed: 3.72 ft at 3:45AM May 14, 2024Observed: 3.71 ft at 4:00AM May 14, 2024Observed: 3.73 ft at 4:15AM May 14, 2024Observed: 3.72 ft at 4:30AM May 14, 2024Observed: 3.76 ft at 4:45AM May 14, 2024Observed: 3.76 ft at 5:00AM May 14, 2024Observed: 3.74 ft at 5:15AM May 14, 2024Observed: 3.75 ft at 5:30AM May 14, 2024Observed: 3.75 ft at 5:45AM May 14, 2024Observed: 3.76 ft at 6:00AM May 14, 2024Observed: 3.75 ft at 6:15AM May 14, 2024Observed: 3.71 ft at 6:30AM May 14, 2024Observed: 3.74 ft at 6:45AM May 14, 2024Observed: 3.74 ft at 7:00AM May 14, 2024Observed: 3.7 ft at 7:15AM May 14, 2024Observed: 3.72 ft at 7:30AM May 14, 2024Observed: 3.71 ft at 7:45AM May 14, 2024Observed: 3.72 ft at 8:00AM May 14, 2024Observed: 3.69 ft at 8:15AM May 14, 2024Observed: 3.69 ft at 8:30AM May 14, 2024Observed: 3.63 ft at 8:45AM May 14, 2024Observed: 3.63 ft at 9:00AM May 14, 2024Observed: 3.62 ft at 9:15AM May 14, 2024Observed: 3.63 ft at 9:30AM May 14, 2024Observed: 3.63 ft at 9:45AM May 14, 2024Observed: 3.61 ft at 10:00AM May 14, 2024Observed: 3.63 ft at 10:15AM May 14, 2024Observed: 3.61 ft at 10:30AM May 14, 2024Observed: 3.62 ft at 10:45AM May 14, 2024Observed: 3.63 ft at 11:00AM May 14, 2024Observed: 3.62 ft at 11:15AM May 14, 2024Observed: 3.63 ft at 11:30AM May 14, 2024Observed: 3.65 ft at 11:45AM May 14, 2024Observed: 3.63 ft at 12:00PM May 14, 2024Observed: 3.61 ft at 12:15PM May 14, 2024Observed: 3.63 ft at 12:30PM May 14, 2024Observed: 3.64 ft at 12:45PM May 14, 2024Observed: 3.61 ft at 1:00PM May 14, 2024Observed: 3.6 ft at 1:15PM May 14, 2024Observed: 3.61 ft at 1:30PM May 14, 2024Observed: 3.63 ft at 1:45PM May 14, 2024Observed: 3.64 ft at 2:00PM May 14, 2024Observed: 3.61 ft at 2:15PM May 14, 2024Observed: 3.62 ft at 2:30PM May 14, 2024Observed: 3.62 ft at 2:45PM May 14, 2024Observed: 3.65 ft at 3:00PM May 14, 2024Observed: 3.6 ft at 3:15PM May 14, 2024Observed: 3.6 ft at 3:30PM May 14, 2024Observed: 3.6 ft at 3:45PM May 14, 2024Observed: 3.62 ft at 4:00PM May 14, 2024Observed: 3.57 ft at 4:15PM May 14, 2024Observed: 3.59 ft at 4:30PM May 14, 2024Observed: 3.67 ft at 4:45PM May 14, 2024Observed: 3.58 ft at 5:00PM May 14, 2024Observed: 3.64 ft at 5:15PM May 14, 2024Observed: 3.65 ft at 5:30PM May 14, 2024Observed: 3.63 ft at 5:45PM May 14, 2024Observed: 3.69 ft at 6:00PM May 14, 2024Observed: 3.65 ft at 6:15PM May 14, 2024Observed: 3.63 ft at 6:30PM May 14, 2024Observed: 3.72 ft at 6:45PM May 14, 2024Observed: 3.7 ft at 7:00PM May 14, 2024Observed: 3.69 ft at 7:15PM May 14, 2024Observed: 3.71 ft at 7:30PM May 14, 2024Observed: 3.69 ft at 7:45PM May 14, 2024Observed: 3.68 ft at 8:00PM May 14, 2024Observed: 3.69 ft at 8:15PM May 14, 2024Observed: 3.66 ft at 8:30PM May 14, 2024Observed: 3.69 ft at 8:45PM May 14, 2024Observed: 3.7 ft at 9:00PM May 14, 2024Observed: 3.69 ft at 9:15PM May 14, 2024Observed: 3.66 ft at 9:30PM May 14, 2024Observed: 3.69 ft at 9:45PM May 14, 2024Observed: 3.69 ft at 10:00PM May 14, 2024Observed: 3.71 ft at 10:15PM May 14, 2024Observed: 3.68 ft at 10:30PM May 14, 2024Observed: 3.71 ft at 10:45PM May 14, 2024Observed: 3.72 ft at 11:00PM May 14, 2024Observed: 3.71 ft at 11:15PM May 14, 2024Observed: 3.67 ft at 11:30PM May 14, 2024Observed: 3.7 ft at 11:45PM May 14, 2024Observed: 3.69 ft at 12:00AM May 15, 2024Observed: 3.72 ft at 12:15AM May 15, 2024Observed: 3.68 ft at 12:30AM May 15, 2024Observed: 3.69 ft at 12:45AM May 15, 2024Observed: 3.67 ft at 1:00AM May 15, 2024Observed: 3.66 ft at 1:15AM May 15, 2024Observed: 3.66 ft at 1:30AM May 15, 2024Observed: 3.7 ft at 1:45AM May 15, 2024Observed: 3.68 ft at 2:00AM May 15, 2024Observed: 3.71 ft at 2:15AM May 15, 2024Observed: 3.69 ft at 2:30AM May 15, 2024Observed: 3.71 ft at 2:45AM May 15, 2024Observed: 3.71 ft at 3:00AM May 15, 2024Observed: 3.67 ft at 3:15AM May 15, 2024Observed: 3.71 ft at 3:30AM May 15, 2024Observed: 3.67 ft at 3:45AM May 15, 2024Observed: 3.71 ft at 4:00AM May 15, 2024Observed: 3.67 ft at 4:15AM May 15, 2024Observed: 3.7 ft at 4:30AM May 15, 2024Observed: 3.7 ft at 4:45AM May 15, 2024Observed: 3.7 ft at 5:00AM May 15, 2024Observed: 3.68 ft at 5:15AM May 15, 2024Observed: 3.68 ft at 5:30AM May 15, 2024Observed: 3.67 ft at 5:45AM May 15, 2024Observed: 3.69 ft at 6:00AM May 15, 2024Observed: 3.68 ft at 6:15AM May 15, 2024Observed: 3.61 ft at 6:30AM May 15, 2024Observed: 3.67 ft at 6:45AM May 15, 2024Observed: 3.67 ft at 7:00AM May 15, 2024Observed: 3.69 ft at 7:15AM May 15, 2024Observed: 3.66 ft at 7:30AM May 15, 2024Observed: 3.66 ft at 7:45AM May 15, 2024Observed: 3.63 ft at 8:00AM May 15, 2024Observed: 3.64 ft at 8:15AM May 15, 2024Observed: 3.67 ft at 8:30AM May 15, 2024Observed: 3.66 ft at 8:45AM May 15, 2024Observed: 3.65 ft at 9:00AM May 15, 2024Observed: 3.63 ft at 9:15AM May 15, 2024Observed: 3.63 ft at 9:30AM May 15, 2024Observed: 3.65 ft at 9:45AM May 15, 2024Observed: 3.65 ft at 10:00AM May 15, 2024Observed: 3.62 ft at 10:15AM May 15, 2024Observed: 3.6 ft at 11:30AM May 15, 2024Observed: 3.57 ft at 11:45AM May 15, 2024Observed: 3.59 ft at 12:00PM May 15, 2024Observed: 3.6 ft at 12:15PM May 15, 2024Observed: 3.58 ft at 12:30PM May 15, 2024Observed: 3.62 ft at 12:45PM May 15, 2024Observed: 3.59 ft at 1:00PM May 15, 2024Observed: 3.58 ft at 1:15PM May 15, 2024Observed: 3.61 ft at 1:30PM May 15, 2024Observed: 3.62 ft at 1:45PM May 15, 2024Observed: 3.63 ft at 2:00PM May 15, 2024Observed: 3.64 ft at 2:15PM May 15, 2024Observed: 3.59 ft at 2:30PM May 15, 2024Observed: 3.59 ft at 2:45PM May 15, 2024Observed: 3.58 ft at 3:00PM May 15, 2024Observed: 3.58 ft at 3:15PM May 15, 2024Observed: 3.6 ft at 3:30PM May 15, 2024Observed: 3.62 ft at 3:45PM May 15, 2024Observed: 3.57 ft at 4:00PM May 15, 2024Observed: 3.56 ft at 4:15PM May 15, 2024Observed: 3.57 ft at 4:30PM May 15, 2024Observed: 3.58 ft at 4:45PM May 15, 2024Observed: 3.57 ft at 5:00PM May 15, 2024Observed: 3.58 ft at 5:15PM May 15, 2024Observed: 3.57 ft at 5:30PM May 15, 2024Observed: 3.59 ft at 5:45PM May 15, 2024Observed: 3.56 ft at 6:00PM May 15, 2024Observed: 3.54 ft at 6:15PM May 15, 2024Observed: 3.58 ft at 6:30PM May 15, 2024Observed: 3.58 ft at 6:45PM May 15, 2024Observed: 3.58 ft at 7:00PM May 15, 2024Observed: 3.56 ft at 7:15PM May 15, 2024Observed: 3.6 ft at 7:30PM May 15, 2024Observed: 3.58 ft at 7:45PM May 15, 2024Observed: 3.59 ft at 8:00PM May 15, 2024Observed: 3.58 ft at 8:15PM May 15, 2024Observed: 3.58 ft at 8:30PM May 15, 2024Observed: 3.6 ft at 8:45PM May 15, 2024Observed: 3.58 ft at 9:00PM May 15, 2024Observed: 3.57 ft at 9:15PM May 15, 2024Observed: 3.56 ft at 9:30PM May 15, 2024Observed: 3.58 ft at 9:45PM May 15, 2024Observed: 3.58 ft at 10:00PM May 15, 2024Observed: 3.56 ft at 10:15PM May 15, 2024Observed: 3.57 ft at 10:30PM May 15, 2024Observed: 3.56 ft at 10:45PM May 15, 2024Observed: 3.56 ft at 11:00PM May 15, 2024Observed: 3.55 ft at 11:15PM May 15, 2024Observed: 3.56 ft at 11:30PM May 15, 2024Observed: 3.56 ft at 11:45PM May 15, 2024Observed: 3.59 ft at 12:00AM May 16, 2024Observed: 3.59 ft at 12:15AM May 16, 2024Observed: 3.57 ft at 12:30AM May 16, 2024Observed: 3.57 ft at 12:45AM May 16, 2024Observed: 3.57 ft at 1:00AM May 16, 2024Observed: 3.59 ft at 1:15AM May 16, 2024Observed: 3.59 ft at 1:30AM May 16, 2024Observed: 3.57 ft at 1:45AM May 16, 2024Observed: 3.57 ft at 2:00AM May 16, 2024Observed: 3.55 ft at 2:15AM May 16, 2024Observed: 3.56 ft at 2:30AM May 16, 2024Observed: 3.56 ft at 2:45AM May 16, 2024Observed: 3.57 ft at 3:00AM May 16, 2024Observed: 3.57 ft at 3:15AM May 16, 2024Observed: 3.6 ft at 3:30AM May 16, 2024Observed: 3.58 ft at 3:45AM May 16, 2024Observed: 3.58 ft at 4:00AM May 16, 2024Observed: 3.58 ft at 4:15AM May 16, 2024Observed: 3.59 ft at 4:30AM May 16, 2024Observed: 3.6 ft at 4:45AM May 16, 2024Observed: 3.61 ft at 5:00AM May 16, 2024Observed: 3.6 ft at 5:15AM May 16, 2024Observed: 3.6 ft at 5:30AM May 16, 2024Observed: 3.59 ft at 5:45AM May 16, 2024Observed: 3.6 ft at 6:00AM May 16, 2024Observed: 3.58 ft at 6:15AM May 16, 2024Observed: 3.6 ft at 6:30AM May 16, 2024Observed: 3.59 ft at 6:45AM May 16, 2024Observed: 3.57 ft at 7:00AM May 16, 2024Observed: 3.6 ft at 7:15AM May 16, 2024Observed: 3.59 ft at 7:30AM May 16, 2024Observed: 3.59 ft at 7:45AM May 16, 2024Observed: 3.61 ft at 8:00AM May 16, 2024Observed: 3.59 ft at 8:15AM May 16, 2024Observed: 3.58 ft at 8:30AM May 16, 2024Observed: 3.58 ft at 8:45AM May 16, 2024Observed: 3.57 ft at 9:00AM May 16, 2024Observed: 3.56 ft at 9:15AM May 16, 2024Observed: 3.56 ft at 9:30AM May 16, 2024Observed: 3.57 ft at 9:45AM May 16, 2024Observed: 3.55 ft at 10:00AM May 16, 2024Observed: 3.53 ft at 10:15AM May 16, 2024Observed: 3.52 ft at 10:30AM May 16, 2024Observed: 3.52 ft at 10:45AM May 16, 2024Observed: 3.52 ft at 11:00AM May 16, 2024Observed: 3.5 ft at 11:15AM May 16, 2024Observed: 3.49 ft at 11:30AM May 16, 2024Observed: 3.48 ft at 11:45AM May 16, 2024Observed: 3.48 ft at 12:00PM May 16, 2024Observed: 3.47 ft at 12:15PM May 16, 2024Observed: 3.5 ft at 12:30PM May 16, 2024Observed: 3.48 ft at 12:45PM May 16, 2024Observed: 3.51 ft at 1:00PM May 16, 2024Observed: 3.55 ft at 1:15PM May 16, 2024Observed: 3.54 ft at 1:30PM May 16, 2024Observed: 3.52 ft at 1:45PM May 16, 2024Observed: 3.51 ft at 2:00PM May 16, 2024Observed: 3.52 ft at 2:15PM May 16, 2024Observed: 3.53 ft at 2:30PM May 16, 2024Observed: 3.52 ft at 2:45PM May 16, 2024Observed: 3.55 ft at 3:00PM May 16, 2024Observed: 3.54 ft at 3:15PM May 16, 2024Observed: 3.53 ft at 3:30PM May 16, 2024Observed: 3.54 ft at 3:45PM May 16, 2024Observed: 3.58 ft at 4:00PM May 16, 2024Observed: 3.57 ft at 4:15PM May 16, 2024Observed: 3.56 ft at 4:30PM May 16, 2024Observed: 3.56 ft at 4:45PM May 16, 2024Observed: 3.56 ft at 5:00PM May 16, 2024Observed: 3.55 ft at 5:15PM May 16, 2024Observed: 3.57 ft at 5:30PM May 16, 2024Observed: 3.57 ft at 5:45PM May 16, 2024Observed: 3.56 ft at 6:00PM May 16, 2024Observed: 3.54 ft at 6:15PM May 16, 2024Observed: 3.58 ft at 6:30PM May 16, 2024Observed: 3.56 ft at 6:45PM May 16, 2024Observed: 3.55 ft at 7:00PM May 16, 2024Observed: 3.56 ft at 7:15PM May 16, 2024Observed: 3.57 ft at 7:30PM May 16, 2024Observed: 3.56 ft at 7:45PM May 16, 2024Observed: 3.58 ft at 8:00PM May 16, 2024Observed: 3.59 ft at 8:15PM May 16, 2024Observed: 3.54 ft at 8:30PM May 16, 2024Observed: 3.57 ft at 8:45PM May 16, 2024Observed: 3.57 ft at 9:00PM May 16, 2024Observed: 3.7 ft at 9:15PM May 16, 2024Observed: 3.68 ft at 9:30PM May 16, 2024Observed: 3.71 ft at 9:45PM May 16, 2024Observed: 3.72 ft at 10:00PM May 16, 2024Observed: 3.76 ft at 10:15PM May 16, 2024Observed: 3.8 ft at 10:30PM May 16, 2024Observed: 3.84 ft at 10:45PM May 16, 2024Observed: 3.85 ft at 11:00PM May 16, 2024Observed: 3.87 ft at 11:15PM May 16, 2024Observed: 3.85 ft at 11:30PM May 16, 2024Observed: 3.91 ft at 11:45PM May 16, 2024Observed: 3.97 ft at 12:00AM May 17, 2024Observed: 3.93 ft at 12:15AM May 17, 2024Observed: 3.96 ft at 12:30AM May 17, 2024Observed: 3.87 ft at 12:45AM May 17, 2024Observed: 3.92 ft at 1:00AM May 17, 2024Observed: 3.94 ft at 1:15AM May 17, 2024Observed: 3.89 ft at 1:30AM May 17, 2024Observed: 4.02 ft at 1:45AM May 17, 2024Observed: 3.94 ft at 2:00AM May 17, 2024Observed: 3.93 ft at 2:15AM May 17, 2024Observed: 3.91 ft at 2:30AM May 17, 2024Observed: 3.96 ft at 2:45AM May 17, 2024Observed: 4.02 ft at 3:00AM May 17, 2024Observed: 3.97 ft at 3:15AM May 17, 2024Observed: 4.02 ft at 3:30AM May 17, 2024Observed: 3.95 ft at 3:45AM May 17, 2024Observed: 3.96 ft at 4:00AM May 17, 2024Observed: 4 ft at 4:15AM May 17, 2024Observed: 3.9 ft at 4:30AM May 17, 2024Observed: 3.96 ft at 4:45AM May 17, 2024Observed: 3.93 ft at 5:00AM May 17, 2024Observed: 4.03 ft at 5:15AM May 17, 2024Observed: 3.96 ft at 5:30AM May 17, 2024Observed: 3.85 ft at 5:45AM May 17, 2024Observed: 3.93 ft at 6:00AM May 17, 2024Observed: 3.88 ft at 6:15AM May 17, 2024Observed: 4 ft at 8:30AM May 17, 2024Observed: 4.06 ft at 8:45AM May 17, 2024Observed: 4.06 ft at 9:00AM May 17, 2024Observed: 3.99 ft at 9:15AM May 17, 2024Observed: 3.95 ft at 9:30AM May 17, 2024Observed: 4 ft at 9:45AM May 17, 2024Observed: 3.97 ft at 10:00AM May 17, 2024Observed: 4.03 ft at 10:15AM May 17, 2024Observed: 3.94 ft at 10:30AM May 17, 2024Observed: 4.07 ft at 10:45AM May 17, 2024Observed: 3.93 ft at 11:00AM May 17, 2024Observed: 3.92 ft at 11:15AM May 17, 2024Observed: 3.99 ft at 11:30AM May 17, 2024Observed: 3.98 ft at 11:45AM May 17, 2024Observed: 4 ft at 12:00PM May 17, 2024Observed: 3.97 ft at 12:15PM May 17, 2024Observed: 3.99 ft at 12:30PM May 17, 2024Observed: 3.99 ft at 12:45PM May 17, 2024Observed: 4 ft at 1:00PM May 17, 2024Observed: 4.03 ft at 1:15PM May 17, 2024Observed: 4.02 ft at 1:30PM May 17, 2024Observed: 3.99 ft at 1:45PM May 17, 2024Observed: 3.97 ft at 2:00PM May 17, 2024Observed: 3.94 ft at 2:15PM May 17, 2024Observed: 3.96 ft at 2:30PM May 17, 2024Observed: 3.98 ft at 2:45PM May 17, 2024Observed: 3.96 ft at 3:00PM May 17, 2024Observed: 4 ft at 3:15PM May 17, 2024Observed: 3.98 ft at 3:30PM May 17, 2024Observed: 3.99 ft at 3:45PM May 17, 2024Observed: 4 ft at 4:00PM May 17, 2024Observed: 3.98 ft at 4:15PM May 17, 2024Observed: 4 ft at 4:30PM May 17, 2024Observed: 4.06 ft at 4:45PM May 17, 2024Observed: 3.99 ft at 5:00PM May 17, 2024Observed: 4.05 ft at 5:15PM May 17, 2024Observed: 3.98 ft at 5:30PM May 17, 2024Observed: 4.02 ft at 5:45PM May 17, 2024Observed: 4.06 ft at 6:00PM May 17, 2024Observed: 4.03 ft at 6:15PM May 17, 2024Observed: 4.04 ft at 6:30PM May 17, 2024Observed: 4.04 ft at 6:45PM May 17, 2024Observed: 4.06 ft at 7:00PM May 17, 2024Observed: 4.08 ft at 7:15PM May 17, 2024Observed: 4.03 ft at 7:30PM May 17, 2024Observed: 4.04 ft at 7:45PM May 17, 2024Observed: 3.9 ft at 8:00PM May 17, 2024Observed: 4.02 ft at 8:15PM May 17, 2024Observed: 4.03 ft at 8:30PM May 17, 2024Observed: 4.05 ft at 8:45PM May 17, 2024Observed: 4.06 ft at 9:00PM May 17, 2024Observed: 4.05 ft at 9:15PM May 17, 2024Observed: 4.02 ft at 9:30PM May 17, 2024Observed: 4.07 ft at 9:45PM May 17, 2024Observed: 4.03 ft at 10:00PM May 17, 2024Observed: 4.01 ft at 10:15PM May 17, 2024Observed: 4.03 ft at 10:30PM May 17, 2024Observed: 4.1 ft at 10:45PM May 17, 2024Observed: 4 ft at 11:00PM May 17, 2024Observed: 4.05 ft at 11:15PM May 17, 2024Observed: 4.08 ft at 11:30PM May 17, 2024Observed: 4.06 ft at 11:45PM May 17, 2024Observed: 4.12 ft at 12:00AM May 18, 2024Observed: 4.07 ft at 12:15AM May 18, 2024Observed: 4.09 ft at 12:30AM May 18, 2024Observed: 4.06 ft at 12:45AM May 18, 2024Observed: 4.09 ft at 1:00AM May 18, 2024Observed: 4.05 ft at 1:15AM May 18, 2024Observed: 4.1 ft at 1:30AM May 18, 2024Observed: 4.09 ft at 1:45AM May 18, 2024Observed: 4.05 ft at 2:00AM May 18, 2024Observed: 4.12 ft at 2:15AM May 18, 2024Observed: 4.07 ft at 2:30AM May 18, 2024Observed: 4.1 ft at 2:45AM May 18, 2024Observed: 4.08 ft at 3:00AM May 18, 2024Observed: 4.11 ft at 3:15AM May 18, 2024Observed: 4.09 ft at 3:30AM May 18, 2024Observed: 4.08 ft at 3:45AM May 18, 2024Observed: 4.1 ft at 4:00AM May 18, 2024Observed: 4.1 ft at 4:15AM May 18, 2024Observed: 4.12 ft at 4:30AM May 18, 2024Observed: 4.11 ft at 4:45AM May 18, 2024Observed: 4.09 ft at 5:00AM May 18, 2024Observed: 4.1 ft at 5:15AM May 18, 2024Observed: 4.1 ft at 5:30AM May 18, 2024Observed: 4.12 ft at 5:45AM May 18, 2024Observed: 4.11 ft at 6:00AM May 18, 2024Observed: 4.1 ft at 6:15AM May 18, 2024Observed: 4.1 ft at 6:30AM May 18, 2024Observed: 4.11 ft at 6:45AM May 18, 2024Observed: 4.11 ft at 7:00AM May 18, 2024Observed: 4.13 ft at 7:15AM May 18, 2024Observed: 4.11 ft at 7:30AM May 18, 2024Observed: 4.11 ft at 7:45AM May 18, 2024Observed: 4.12 ft at 8:00AM May 18, 2024Observed: 4.1 ft at 8:15AM May 18, 2024Observed: 4.14 ft at 8:30AM May 18, 2024Observed: 4.1 ft at 8:45AM May 18, 2024Observed: 4.13 ft at 9:00AM May 18, 2024Observed: 4.15 ft at 9:15AM May 18, 2024Observed: 4.13 ft at 9:30AM May 18, 2024Observed: 4.08 ft at 9:45AM May 18, 2024Observed: 4.15 ft at 10:00AM May 18, 2024Observed: 4.14 ft at 10:15AM May 18, 2024Observed: 4.14 ft at 10:30AM May 18, 2024Observed: 4.14 ft at 10:45AM May 18, 2024Observed: 4.14 ft at 11:00AM May 18, 2024Observed: 4.15 ft at 11:15AM May 18, 2024Observed: 4.15 ft at 11:30AM May 18, 2024Observed: 4.15 ft at 11:45AM May 18, 2024Observed: 4.14 ft at 12:00PM May 18, 2024Observed: 4.16 ft at 12:15PM May 18, 2024Observed: 4.15 ft at 12:30PM May 18, 2024Observed: 4.16 ft at 12:45PM May 18, 2024Observed: 4.13 ft at 1:00PM May 18, 2024Observed: 4.15 ft at 1:15PM May 18, 2024Observed: 4.14 ft at 1:30PM May 18, 2024Observed: 4.17 ft at 1:45PM May 18, 2024Observed: 4.16 ft at 2:00PM May 18, 2024Observed: 4.16 ft at 2:15PM May 18, 2024Observed: 4.15 ft at 2:30PM May 18, 2024Observed: 4.15 ft at 2:45PM May 18, 2024Observed: 4.15 ft at 3:00PM May 18, 2024Observed: 4.15 ft at 3:15PM May 18, 2024Observed: 4.17 ft at 3:30PM May 18, 2024Observed: 4.08 ft at 3:45PM May 18, 2024Observed: 4.12 ft at 4:00PM May 18, 2024Observed: 4.1 ft at 4:15PM May 18, 2024Observed: 4.13 ft at 4:30PM May 18, 2024Observed: 4.12 ft at 4:45PM May 18, 2024Observed: 4.14 ft at 5:00PM May 18, 2024Observed: 4.16 ft at 5:15PM May 18, 2024Observed: 4.13 ft at 5:30PM May 18, 2024Observed: 4.16 ft at 5:45PM May 18, 2024Observed: 4.16 ft at 6:00PM May 18, 2024Observed: 4.17 ft at 6:15PM May 18, 2024Observed: 4.17 ft at 6:30PM May 18, 2024Observed: 4.18 ft at 6:45PM May 18, 2024Observed: 4.16 ft at 7:00PM May 18, 2024Observed: 4.16 ft at 7:15PM May 18, 2024Observed: 4.17 ft at 7:30PM May 18, 2024Observed: 4.17 ft at 7:45PM May 18, 2024Highest Observation: 4.19 ft at 8:00PM May 18, 2024Observed: 4.14 ft at 8:15PM May 18, 2024Observed: 4.16 ft at 8:30PM May 18, 2024Observed: 4.17 ft at 8:45PM May 18, 2024Observed: 4.17 ft at 9:00PM May 18, 2024Observed: 4.18 ft at 9:15PM May 18, 2024Observed: 4.17 ft at 9:30PM May 18, 2024Observed: 4.14 ft at 9:45PM May 18, 2024Highest Observation: 4.19 ft at 10:00PM May 18, 2024Observed: 4.18 ft at 10:15PM May 18, 2024Observed: 4.18 ft at 10:30PM May 18, 2024Observed: 4.17 ft at 10:45PM May 18, 2024Observed: 4.18 ft at 11:00PM May 18, 2024Observed: 4.17 ft at 11:15PM May 18, 2024Forecast: 4.3 ft 1:00AM May 19, 2024Forecast: 4.3 ft 7:00AM May 19, 2024Forecast: 4.3 ft 1:00PM May 19, 2024Forecast: 4.4 ft 7:00PM May 19, 2024Forecast: 4.4 ft 1:00AM May 20, 2024Highest Forecast: 4.5 ft 7:00AM May 20, 2024Forecast: 4.4 ft 1:00PM May 20, 2024Forecast: 4.4 ft 7:00PM May 20, 2024Forecast: 4.4 ft 1:00AM May 21, 2024Forecast: 4.4 ft 7:00AM May 21, 2024Forecast: 4.4 ft 1:00PM May 21, 2024Forecast: 4.4 ft 7:00PM May 21, 2024Forecast: 4.4 ft 1:00AM May 22, 2024Forecast: 4.4 ft 7:00AM May 22, 2024Forecast: 4.4 ft 1:00PM May 22, 2024Forecast: 4.3 ft 7:00PM May 22, 2024Forecast: 4.3 ft 1:00AM May 23, 2024Forecast: 4.3 ft 7:00AM May 23, 2024Forecast: 4.2 ft 1:00PM May 23, 2024Forecast: 4.1 ft 7:00PM May 23, 2024USGS--Water Resources of the United StatesMRML1(plotting HGIRG) Graph Created (12:25AM May 19, 2024)ObservedForecast (issued 7:53PM May 18)Latest observed value: 4.17 ft at 11:15 PM CDT 18-May-2024. Flood Stage is 4 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.

NOTE: Forecasts for the Mermentau River at Mermentau are issued routinely year-round.

Return to Area Map
Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - at Lacassine Wildlife Refuge
Flood Categories (in feet)
Major Flood Stage: 8
Moderate Flood Stage: 6
Flood Stage: 4
Action Stage: 4
Low Stage (in feet): 0

Historic Crests
(1) 14.50 ft on 08/07/1940
(2) 10.68 ft on 08/18/2016
(3) 10.56 ft on 01/15/2013
(4) 9.47 ft on 12/10/1972
(5) 9.05 ft on 04/25/1977
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 4.34 ft on 10/01/2022
(2) 7.48 ft on 05/22/2021
(3) 5.90 ft on 10/15/2020
(4) 5.46 ft on 08/31/2020
(5) 6.23 ft on 05/14/2019
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -0.94 ft on 07/13/1951
(2) -0.03 ft on 08/15/1985
(3) 0.06 ft on 11/08/1990
Show More Low Water Records

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:16
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
16 Between 16 and 17 ft, flood waters reach the gauge over the mermentau river.
15.1 Between 15.1 and 16.0 ft, flood waters reach the base of the southern pacific railroad bridge east of mermentau across an unnamed tributary.
14.3 The river is at its flood of record. Widespread major to catastrophic flooding will occur.
13.4 The river is near its 100 year flood level. Most of the community of mermentau is inundated with flood waters.
13.3 Water reaches the roadway of the of U.S. 90 bridge east of Mermentau.
11.9 Flood waters reach the roadway on the Field Road bridge east of mermentau.
10 Widespread flooding over a large area from Interstate 10 to Lake Arthur with numerous homes and roads flooded. The community of Morse will be inundated with water. Much of Estherwood will be inundated due to backwater flooding from Bayou Plaquemine. Areas around Gueydan will be inundated with water due to backwater flooding from Bayou Que de Tortue. Communities of Klondike and Lowery will experience flooding as well.
9.5 Widespread major flooding will occur with residential flooding in and around mermentau to the lake arthur area. Numerous roads are inundated across a large area including u.S. 90, la 3166, la 1126, and la 92.
9 Some residential flooding in and around mermentau will occur. U.S. 90 west of mermentau is closed. Operations at the shipyards are affected. Roads in the mermentau cove area are flooded and impassable. Some residences are subject to flooding along the river near lake arthur.
8.5 Some residential flooding in mermentau will occur. Operations at leevac shipyard can be affected. U.S. Highway 90 west of mermentau is flooded and subject to being closed.
7.5 Water is on the roadway of the Field Road bridge in the southeast part of mermentau.
6.2 The water reaches the roadway of the 13th Street bridge in the southern portion of mermentau.
6 Flooding of the shipyard begins. Portions of castex landing, la 3166, become flooded and impassable.
5.5 A few recreational camps and residences are subject to flooding.
4 Minor lowland flooding near the river will occur.
About This Location Collapse

Latitude: 30.190000° N, Longitude: 92.590556° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 4 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 -0.58 ft 3.42 ft 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:
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
Lake Charles Weather Forecast Office
500 Airport Boulevard
Lake Charles, LA 70607
(337) 477-5285
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:29 PM 		Disclaimer
Credits
Glossary 		Privacy Policy
About Us
Career Opportunities