TornadoLiveMap

Mermentau River at Mermentau — water level right now

Acadia Parish, Louisiana · NWS gauge MRML1
Loading the latest reading…
–
current stage (ft)
 
4
minor flood stage
 
14.5
record crest
set 1940-08-07
–
flood status
official NWS category
Official NOAA forecast → USGS data → Full US flood map →

Flood stages at this gauge

Where the water stands right now against the four official thresholds:

action · 4
minor · 4
moderate · 6
major · 8
Flood stageLevel (ft)What it means
Major flood stage8extensive inundation and significant evacuations — a serious event
Moderate flood stage6some buildings and roads inundated; evacuations possible
Minor flood stage4low-lying roads and fields near the river start to flood
Action stage4water is approaching flood level — time to pay attention

Highest floods on record here

#Crest (ft)Datevs. minor flood stage
114.51940-08-07+10.5 above
210.682016-08-18+6.68 above
310.562013-01-15+6.56 above
49.471972-12-10+5.47 above
59.051977-04-25+5.05 above
68.962004-05-18+4.96 above
78.661941-06-02+4.66 above
88.612017-05-06+4.61 above
98.561980-05-20+4.56 above
108.541967-04-18+4.54 above
118.271946-07-10+4.27 above
128.131989-07-06+4.13 above

Historic crests recorded at this gauge by the National Weather Service — the 12 highest on file.

Where this gauge is

The marker is this gauge; nearby gauges load live and are clickable.

Nearby river gauges

Bayou Plaquemine Brule at Estherwood 8 mi away · loading… Bayou Queue De Tortue at Riceville 9 mi away · loading… Mermentau River at Lake Arthur 9 mi away · loading… Bayou Des Cannes west of Iota 10 mi away · loading… Bayou Mallet at HWY 91 north of Iota 15 mi away · loading… Bayou Lacassine at Lorrain Park 19 mi away · loading…

Gauge details

NWS gauge IDMRML1
USGS site08012150
CountyAcadia
StateLouisiana
NWS forecast officeLake Charles
River forecast centerLower Mississippi River Forecast Center
Coordinates30.19, -92.591
Time zoneCST6CDT
Turn Around, Don't Drown. Six inches of moving water can knock you off your feet and twelve inches can float a car. Never drive around barricades or into water of unknown depth — most flood deaths happen in vehicles.

Questions about Mermentau River at Mermentau

Is Mermentau River at Mermentau flooding right now?

The live reading at the top of this page answers that: the gauge is compared against its official NWS flood stages every 15 minutes. Minor flooding at this gauge begins at 4 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for Mermentau River at Mermentau?

major flood stage 8 ft, moderate flood stage 6 ft, minor flood stage 4 ft, action stage 4 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

What is the record flood at Mermentau River at Mermentau?

The highest crest on file at this gauge is 14.5 ft, reached on 1940-08-07 — that is 10.5 ft above minor flood stage. The full list of the highest crests is in the table on this page.

Where does this data come from?

From the NOAA National Water Prediction Service, the official U.S. river gauge network — a U.S. government work in the public domain. Live stage is refreshed every 15 minutes; flood thresholds and historic crests are refreshed monthly. For life-safety decisions follow NWS Lake Charles and local emergency management.