WFO BALTIMORE MD./WASHINGTON D.C. Warnings, Watches and Advisories for Saturday, May 17, 2025

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FLOOD WARNING

Flood Statement

National Weather Service Baltimore MD/Washington DC

1121 PM EDT Wed May 14 2025

...The Flood Warning is extended for the following rivers in

Maryland...Virginia...

Potomac River at Little Falls affecting Fairfax and Montgomery

Counties.

For the Potomac River...including Little Falls...Moderate flooding

is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive

cars through flooded areas.

Turn around, don't drown when encountering flooded roads. Most flood

deaths occur in vehicles.

Additional information is available at www.weather.gov/washington or

www.weather.gov/baltimore.

The next statement will be issued early Thursday morning.Thursday

morning at 1130 AM EDT.

...FLOOD WARNING NOW IN EFFECT FROM THURSDAY MORNING TO EARLY

SATURDAY MORNING...

* WHAT...Moderate flooding is forecast.

* WHERE...Potomac River at Little Falls.

* WHEN...From Thursday morning to early Saturday morning.

* IMPACTS...At 12.0 feet, The C&O Canal overflows at the Great Falls

Tavern. Water covers the towpath in many areas.

* ADDITIONAL DETAILS...

- At 10:45 PM EDT Wednesday the stage was 7.1 feet, or 2.9 feet

below flood stage.

- Forecast...The river is expected to rise above flood stage

tomorrow morning to a crest of 12.2 feet tomorrow evening. It

will then fall below flood stage Friday evening.

- Flood stage is 10.0 feet.

- Flood History...This crest compares to a previous crest of

12.2 feet on 02/27/1961.

- Please visit www.weather.gov/safety/flood for flood safety

and preparedness information

River Name Fld Observed Thu Thu Thu Crest

Location Stg Stg Day/Time 8AM 2PM 8PM Stg Time Date

Potomac River

Little Falls 10.0 7.1 Wed 10 pm 10.5 11.6 12.2 12.2 8pm Thu

...FLOOD WARNING NOW IN EFFECT UNTIL TOMORROW AFTERNOON...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Potomac River at Paw Paw.

* WHEN...Until tomorrow afternoon.

- At 11:00 PM EDT Wednesday the stage was 28.8 feet, or 3.8

feet above flood stage.

- Recent Activity...The maximum river stage in the 24 hours

ending at 11:00 PM EDT Wednesday was 30.1 feet.

- Forecast...The river is expected to fall below flood stage

late tomorrow morning and continue falling to 16.0 feet

Saturday evening.

- Flood stage is 25.0 feet.

28.8 feet on 06/23/1972.

Paw Paw 25.0 28.8 Wed 11 pm 25.4 23.1 21.1 17.5 8pm Fri

...FLOOD WARNING REMAINS IN EFFECT UNTIL LATE FRIDAY EVENING...

* WHAT...Minor flooding is occurring and moderate flooding is

forecast.

* WHERE...Potomac River at Shepherdstown.

* WHEN...Until late Friday evening.

* IMPACTS...At 22.0 feet, Water approaches homes on the West

Virginia side of the river near Shepherdstown, and impacts are

also observed on the Maryland side, not just to the C&O Canal

towpath, but also to roads and structures.

- At 11:00 PM EDT Wednesday the stage was 21.4 feet, or 6.4

ending at 11:00 PM EDT Wednesday was 21.4 feet.

- Forecast...The river will rise to 22.9 feet tomorrow morning.

It will then fall below flood stage Friday afternoon to 13.3

feet Saturday morning. It will rise to 13.4 feet early

Saturday afternoon. It will then fall again and remain below

flood stage.

- Flood stage is 15.0 feet.

23.0 feet on 06/04/2018.

Shepherdstow 15.0 21.4 Wed 11 pm 22.9 22.3 20.9 22.9 8am Thu

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