New event. Flood Watch from 9/2/2021 9:00 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 Point of Rocks.
* From Thursday evening until further notice.
* At 8:45 PM EDT Tuesday the stage was 2.1 feet, or 13.9 feet below
* Flood stage is 16.0 feet.
* Flooding is possible.
* Forecast...Flood stage may be reached late Thursday evening.
* Impact...At 22.0 feet, Water begins to cover the C&O Canal towpath
near Point of Rocks and Brunswick.
River Name Fld Observed Wed Wed Wed Crest
Location Stg Stg Day/Time 2AM 8AM 2PM Stg Time Date
Point of Rocks 16.0 2.1 Tue 8 pm 2.1 2.1 1.9 2.1 2am Wed
LAT...LON 3936 7766 3934 7757 3926 7747 3923 7744
3920 7754 3927 7760 3930 7770
iNWS is an experimental service intended for NWS core partners,
including emergency managers, community leaders and other government