TornadoLiveMap

Little Patuxent River at Allview — water level right now

Howard County, Maryland · NWS gauge SMPM2
Loading the latest reading…
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current stage (ft)
 
280
minor flood stage
 
284.53
record crest
set 2018-05-28
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flood status
official NWS category
Official NOAA forecast → Full US flood map →

Flood stages at this gauge

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

action · 278
minor · 280
moderate · 281
major · 283
Flood stageLevel (ft)What it means
Major flood stage283extensive inundation and significant evacuations — a serious event
Moderate flood stage281some buildings and roads inundated; evacuations possible
Minor flood stage280low-lying roads and fields near the river start to flood
Action stage278water is approaching flood level — time to pay attention

Highest floods on record here

#Crest (ft)Datevs. minor flood stage
1284.532018-05-28+4.53 above
2280.392018-06-04+0.39 above
3280.232011-09-07+0.23 above
4276.432011-08-283.57 below

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

Little Patuxent River near Guilford 1 mi away · loading… Little Patuxent River below Lake Kittamaqundi 2 mi away · loading… Little Patuxent River near Savage 4 mi away · loading… Patuxent River below Duckett Dam near Laurel 5 mi away · loading… Hudson Branch near Rogers Avenue at Ellicott City 6 mi away · loading… Patapsco River at Ellicott City 7 mi away · loading…

Gauge details

NWS gauge IDSMPM2
CountyHoward
StateMaryland
NWS forecast officeSterling
River forecast centerMiddle Atlantic River Forecast Center
Coordinates39.181, -76.852
Time zoneEST5EDT
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 Little Patuxent River at Allview

Is Little Patuxent River at Allview 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 280 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for Little Patuxent River at Allview?

major flood stage 283 ft, moderate flood stage 281 ft, minor flood stage 280 ft, action stage 278 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

What is the record flood at Little Patuxent River at Allview?

The highest crest on file at this gauge is 284.53 ft, reached on 2018-05-28 — that is 4.53 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 Sterling and local emergency management.