New event. Flood Watch from 9/2/2021 11:00 PM EDT until further notice for Central Maryland. More information.
Interactive NWS Alert
Radar valid at 545 am EDT, Sep 1st 2021
...The National Weather Service in Baltimore MD/Washington DC has
issued a Flood Watch for the following rivers in Maryland...
Potomac River at Point of Rocks affecting Frederick MD and
Western Loudoun zones.
Potomac River at Edwards Ferry affecting Eastern Loudoun, Western
Loudoun and Northwest Montgomery zones.
Potomac River at Harpers Ferry affecting Jefferson and Washington
Potomac River at Little Falls affecting Central and Southeast
Montgomery and Fairfax Counties.
...The Flood Watch is replaced with a River Flood Warning for the
following rivers in West Virginia...
South Branch Potomac River at Franklin affecting Eastern
...The Flood Watch continues for the following rivers in Virginia...
Shenandoah River at Millville affecting Clarke, Jefferson and
Rappahannock River at Remington affecting Culpeper and Southern
Seneca Creek at Dawsonville affecting Northwest Montgomery zone.
For the South Branch Potomac River...including Franklin, Moorefield
- SF, Petersburg, Springfield...flooding is possible.
For the Potomac River...including Paw Paw, Hancock, Dam Number Five,
Shepherdstown, Harpers Ferry, Point of Rocks, Edwards Ferry, Little
Falls...flooding is possible.
For the Shenandoah River...including Millville...flooding is
For the Rappahannock River...including Remington, Fredericksburg,
Fredericksburg...flooding is possible.
For the Seneca Creek...including Dawsonville...flooding is possible.
944 PM EDT Tue Aug 31 2021
The National Weather Service in Sterling Virginia has issued a
* Flood Watch for
the Potomac River at Edwards Ferry.
* From Thursday evening until further notice.
* At 8:45 PM EDT Tuesday the stage was 3.7 feet, or 11.3 feet below
* Flood stage is 15.0 feet.
* Flooding is possible.
* Forecast...Flood stage may be reached late Thursday evening.
* Impact...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.
River Name Fld Observed Wed Wed Wed Crest
Location Stg Stg Day/Time 2AM 8AM 2PM Stg Time Date
Edwards Ferry 15.0 3.7 Tue 8 pm 4.2 4.5 5.3 20.1 2pm Fri
LAT...LON 3923 7744 3913 7745 3908 7730 3903 7736
3905 7745 3911 7755 3920 7754
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