Interactive NWS Alert
Radar valid at 1241 am EDT, Sep 1st 2021
...The Flood Watch is replaced with a River Flood Warning for the
following rivers in Maryland...
Wills Creek near Cumberland affecting Central and Eastern
Monocacy River near Frederick affecting Frederick MD zone.
...The Flood Watch continues for the following rivers in Maryland...
Antietam Creek near Sharpsburg affecting Washington County.
Cacapon River near Great Cacapon affecting Morgan County.
South Branch Potomac River near Springfield affecting Hardy and
Potomac River at Paw Paw affecting Morgan, Central and Eastern
Allegany and Hampshire Counties.
Potomac River at Dam Number Five affecting Washington and
Potomac River at Shepherdstown affecting Jefferson, Washington
and Berkeley Counties.
Potomac River at Hancock affecting Washington and Morgan Counties.
Shenandoah River at Millville affecting Clarke, Jefferson and
Rappahannock River at Remington affecting Culpeper and Southern
Opequon Creek near Martinsburg affecting Jefferson and Berkeley
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 Wills Creek...including Cumberland...flooding is possible.
For the Opequon Creek...including Martinsburg...flooding is possible.
For the Antietam Creek...including Sharpsburg...flooding is possible.
For the Seneca Creek...including Dawsonville...flooding is possible.
For the Monocacy River...including Frederick...flooding is possible.
For the Cacapon River...including Great Cacapon...flooding is
1241 AM EDT Wed Sep 1 2021
The Flood Watch is cancelled for
the Monocacy River near Frederick
and has been replaced with a Flood Warning.
* At 11:30 PM EDT Tuesday the stage was 2.2 feet, or 12.8 feet below
* Flood stage is 15.0 feet.
* Forecast...Flood stage may be reached just after midnight tonight.
River Name Fld Observed Wed Wed Wed Crest
Location Stg Stg Day/Time 6AM 12PM 6PM Stg Time Date
Frederick 15.0 2.2 Tue 11 pm MSG MSG MSG 20.4 2pm Thu
LAT...LON 3958 7738 3955 7731 3940 7735 3924 7741
3922 7745 3926 7748 3951 7742
iNWS is an experimental service intended for NWS core partners,
including emergency managers, community leaders and other government