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Elev 387 ft, 38.97 °N, 77.39 °W

Herndon, VA Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: Herndon, VA
Elevation: 387ft
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River Flood Warning
Issued: 2:10 PM May. 16, 2025 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL LATE THIS AFTERNOON...

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

* WHERE...Potomac River at Little Falls.

* WHEN...Until late this afternoon.

* IMPACTS...At 11.0 feet, Water covers the towpath between Swains
Lock and Pennyfield Lock, mileposts 17 to 19 on the C&O Canal.

* ADDITIONAL DETAILS...
- At 9:45 AM EDT Friday the stage was 10.8 feet, or 0.8 feet
above flood stage.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:45 AM EDT Friday was 11.3 feet.
- Forecast...The river is expected to fall below flood stage
this afternoon and continue falling to 5.9 feet Monday
morning.
- Flood stage is 10.0 feet.
- Flood History...This crest compares to a previous crest of
10.8 feet on 03/22/1998.
- Please visit www.weather.gov/safety/flood for flood safety
and preparedness information

&&

River Name   Fld      Observed    Fri   Fri   Sat     Crest
Location     Stg   Stg  Day/Time  2PM   8PM   2AM   Stg Time Date

Potomac River
Little Falls 10.0  10.8 Fri 9 am  10.1  9.2   8.6    MSG  unknown

&&



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