TornadoLiveMap

Potomac River at Point of Rocks — water level right now

Frederick County, Maryland · NWS gauge PORM2
Loading the latest reading…
–
current stage (ft)
 
16
minor flood stage
 
41.03
record crest
set 1936-03-19
–
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 · 11
minor · 16
moderate · 20
major · 27
Flood stageLevel (ft)What it means
Major flood stage27extensive inundation and significant evacuations — a serious event
Moderate flood stage20some buildings and roads inundated; evacuations possible
Minor flood stage16low-lying roads and fields near the river start to flood
Action stage11water is approaching flood level — time to pay attention

Highest floods on record here

#Crest (ft)Datevs. minor flood stage
141.031936-03-19+25.03 above
240.431942-10-16+24.43 above
340.21889-06-02+24.2 above
437.431972-06-23+21.43 above
536.341996-01-21+20.34 above
636.281985-11-07+20.28 above
736.261996-09-08+20.26 above
833.861937-04-27+17.86 above
932.21924-05-13+16.2 above
1029.081955-08-20+13.08 above
11291902-03-02+13 above
1228.141984-02-16+12.14 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

Bennett Creek at Park Mills 7 mi away · loading… Catoctin Creek Near Middletown 11 mi away · loading… Monocacy River near Frederick at Interstate 70 13 mi away · loading… Potomac River at Edwards Ferry 13 mi away · loading… Soper Branch at Hyattstown, MD 13 mi away · loading… Ten Mile Creek near Boyds 13 mi away · loading…

Gauge details

NWS gauge IDPORM2
USGS site01638500
CountyFrederick
StateMaryland
NWS forecast officeSterling
River forecast centerMiddle Atlantic River Forecast Center
Coordinates39.274, -77.543
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 Potomac River at Point of Rocks

Is Potomac River at Point of Rocks 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 16 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for Potomac River at Point of Rocks?

major flood stage 27 ft, moderate flood stage 20 ft, minor flood stage 16 ft, action stage 11 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

What is the record flood at Potomac River at Point of Rocks?

The highest crest on file at this gauge is 41.03 ft, reached on 1936-03-19 — that is 25.03 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.