WFO BALTIMORE MD./WASHINGTON D.C. Warnings, Watches and Advisories for Wednesday, May 14, 2025

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FLOOD WATCH

Flood Watch

National Weather Service Baltimore MD/Washington DC

1037 AM EDT Wed May 14 2025

...The Flood Watch is replaced by a River Flood Warning for the

following rivers in Maryland...Virginia...

Potomac River at Little Falls affecting Fairfax and Central and

Southeast Montgomery Counties.

...FLOOD WATCH HAS BEEN REPLACED WITH A RIVER FLOOD WARNING...

The Flood Watch is cancelled for

the Potomac River at Little Falls

and has been replaced with a Flood Warning.

* ADDITIONAL DETAILS...

- At 9:45 AM EDT Wednesday the stage was 4.7 feet, or 5.3 feet

below flood stage.

- Forecast...Flood stage may be reached tomorrow morning.

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

and preparedness information

River Name Fld Observed Wed Wed Thu Crest

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

Potomac River

Little Falls 10.0 4.7 Wed 9 am 5.1 5.5 7.4 11.8 8pm Thu

...FLOOD WARNING IN EFFECT FROM THIS AFTERNOON TO TOMORROW MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Potomac River at Hancock.

* WHEN...From this afternoon to tomorrow morning.

* IMPACTS...At 25.0 feet, Water may begin to inundate low points of

the CSX Railroad tracks on the West Virginia side of the river due

to backwater. Additionally, access to Potomac Airpark may be

restricted due to backwater. Water reaches the top of the Hancock

boat ramp and begins to spill over into the adjacent parking lot.

- At 10:00 AM EDT Wednesday the stage was 23.0 feet, or 2.0

feet below flood stage.

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

this afternoon to a crest of 25.4 feet this evening. It will

then fall below flood stage just after midnight tonight.

- Flood stage is 25.0 feet.

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

25.4 feet on 05/19/2011.

Hancock 25.0 23.0 Wed 10 am 25.0 25.4 25.1 25.4 8pm Wed

...FLOOD WARNING NOW IN EFFECT UNTIL THIS EVENING...

* WHAT...Minor flooding is occurring.

* WHERE...North Branch Potomac River near Cumberland.

* WHEN...Until this evening.

* IMPACTS...At 17.0 feet, A low spot on Airport Road in Wiley Ford,

West Virginia is flooded. A livestock field southeast of the

Cumberland Regional Airport floods.

- At 10:00 AM EDT Wednesday the stage was 20.6 feet, or 3.6

feet above flood stage.

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

ending at 10:00 AM EDT Wednesday was 22.5 feet.

- Forecast...The river will fall below flood stage this

afternoon to 12.3 feet just after midnight tonight. It will

then rise to 13.1 feet tomorrow morning. It will fall to 9.0

feet Friday morning. It will then rise to 9.2 feet early

Friday afternoon. It will fall again and remain below flood

stage.

- Flood stage is 17.0 feet.

19.5 feet on 04/29/1964.

River Name Fld Observed Wed Wed Thu

Crest

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

Time Date

North Branch Potomac River

Cumberland 17.0 20.6 Wed 10 am 16.3 12.6 12.3

13.1 8am Thu

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

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

* WHERE...Potomac River at Paw Paw.

* WHEN...Until tomorrow morning.

* IMPACTS...At 25.0 feet, A parking area adjacent to the highway

bridge begins to flood. The roadway to the C&O Canal parking area

floods, as does the lowest end of the Purslane Run hiker/biker

area.

At 26.0 feet, Water covers an access road on the West Virginia side.

- At 10:00 AM EDT Wednesday the stage was 27.1 feet, or 2.1

ending at 10:00 AM EDT Wednesday was 27.1 feet.

- Forecast...The river is expected to rise to a crest of 28.6

feet this evening. It will then fall below flood stage just

after midnight tonight.

28.8 feet on 06/23/1972.

Paw Paw 25.0 27.1 Wed 10 am 28.0 28.6 25.1 28.6 8pm Wed

...FLOOD WARNING NOW IN EFFECT FROM THIS AFTERNOON TO LATE FRIDAY

EVENING...

* WHERE...Potomac River at Shepherdstown.

* WHEN...From this afternoon to 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 10:00 AM EDT Wednesday the stage was 10.1 feet, or 4.9

late this afternoon to a crest of 21.8 feet just after

midnight tonight. It will then fall below flood stage Friday

afternoon.

- Flood stage is 15.0 feet.

22.0 feet on 10/17/1954.

Shepherdstow 15.0 10.1 Wed 10 am 12.1 19.8 21.8 21.8 2am Thu

...FLOOD WARNING NOW IN EFFECT FROM THIS EVENING TO LATE FRIDAY

* WHAT...Moderate flooding is forecast.

* WHERE...Potomac River at Point of Rocks.

* WHEN...From this evening to late Friday evening.

* IMPACTS...At 22.0 feet, Water begins to cover the C&O Canal

towpath near Point of Rocks and Brunswick.

At 23.0 feet, Floodwaters completely cover the comfort station at

the Brunswick boat ramp, and reach the comfort station at the

Point of Rocks boat ramp. The upper parking lot at the Point of

Rocks boat ramp begins to flood.

- At 9:45 AM EDT Wednesday the stage was 4.6 feet, or 11.4 feet

late this evening to a crest of 22.9 feet tomorrow morning.

It will then fall below flood stage Friday afternoon.

- Flood stage is 16.0 feet.

22.5 feet on 03/08/1967.

River Name Fld Observed Wed Wed Thu Crest

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

Point of Rocks 16.0 4.6 Wed 9 am 6.4 13.0 20.6 22.9 8am Thu

...FLOOD WARNING NOW IN EFFECT FROM THIS EVENING UNTIL FURTHER

NOTICE...

* WHERE...Potomac River at Edwards Ferry.

* WHEN...From this evening until further notice.

* IMPACTS...At 20.0 feet, The basements of the Edwards Ferry

Lockhouse and Rileys Lockhouse are flooded. Backwater flooding may

affect homes on the Loudoun County side of the river near Broad

Run in Sterling.

- At 9:45 AM EDT Wednesday the stage was 7.7 feet, or 7.3 feet

late this evening and continue rising to a crest of 21.1 feet

early tomorrow afternoon.

21.1 feet on 05/17/2014.

Edwards Ferr 15.0 7.7 Wed 9 am 8.5 12.7 17.5 21.1 2pm Thu

...FLOOD WARNING NOW IN EFFECT FROM LATE TONIGHT TO TOMORROW

AFTERNOON...

* WHERE...Potomac River at Harpers Ferry.

* WHEN...From late tonight to tomorrow afternoon.

* IMPACTS...At 18.5 feet, The employee parking lot at historic

Harpers Ferry floods.

- At 9:45 AM EDT Wednesday the stage was 5.9 feet, or 12.1 feet

just after midnight tonight to a crest of 18.4 feet tomorrow

morning. It will then fall below flood stage late tomorrow

morning.

- Flood stage is 18.0 feet.

18.5 feet on 09/19/1945.

Harpers Ferr 18.0 5.9 Wed 9 am 9.8 15.8 18.0 18.4 8am Thu

...FLOOD WARNING NOW IN EFFECT FROM THIS MORNING TO LATE TONIGHT...

* WHERE...Conococheague Creek at Fairview.

* WHEN...From this morning to late tonight.

* IMPACTS...At 10.0 feet, Wishard Road and Kemp Mill Road are both

flooded.

- At 9:45 AM EDT Wednesday the stage was 10.2 feet, or 0.2 feet

above flood stage.

ending at 9:45 AM EDT Wednesday was 10.2 feet.

- Forecast...The river is expected to rise to a crest of 10.3

feet this afternoon. It will then fall below flood stage late

this evening.

- Flood stage is 10.0 feet.

10.3 feet on 09/18/1945.

River Name Fld Observed Wed Wed Thu Crest

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

Date

Conococheague Creek

Fairview 10.0 10.2 Wed 9 am 10.3 10.2 9.6 10.3 2pm

Wed

...FLOOD WARNING IN EFFECT FROM THURSDAY MORNING TO LATE FRIDAY

...REPLACES RIVER FLOOD WATCH...

* WHERE...Potomac River at Little Falls.

* WHEN...From Thursday morning to late Friday evening.

* IMPACTS...At 11.5 feet, Water covers the towpath in multiple spots

between the Washington Aqueduct Dam and Pennyfield Lock, mileposts

15 to 19 on the C&O Canal.

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

Water covers the towpath in many areas.

tomorrow morning to a crest of 11.8 feet tomorrow evening. It

will then fall below flood stage Friday afternoon.

11.9 feet on 03/06/1964.

...FLOOD WARNING IS CANCELLED...

The Flood Warning is cancelled for a portion of western Maryland,

including the following area, Allegany.

Flooding is no longer expected to pose a threat. Please continue to

heed remaining road closures.

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