Flood Watch
Flood Watch
National Weather Service Baltimore MD/Washington DC
243 PM EDT Wed Jul 30 2025
DCZ001-MDZ004>006-008-011-013-014-016>018-503>508-VAZ053-054-501-502-
505-506-526-527-310300-
/O.NEW.KLWX.FA.A.0031.250731T1800Z-250801T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
District of Columbia-Frederick MD-Carroll-Northern Baltimore-
Cecil-Southern Baltimore-Prince Georges-Anne Arundel-Charles-St.
Marys-Calvert-Northwest Montgomery-Central and Southeast
Montgomery-Northwest Howard-Central and Southeast Howard-
Northwest Harford-Southeast Harford-Fairfax-Arlington/Falls
Church/Alexandria-Northern Fauquier-Southern Fauquier-Western
Loudoun-Eastern Loudoun-Northwest Prince William-Central and
Southeast Prince William/Manassas/Manassas Park-
243 PM EDT Wed Jul 30 2025
...FLOOD WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
THURSDAY NIGHT...
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...Portions of DC, including the following , District of
Columbia, Maryland, including the following areas, Anne Arundel,
Calvert, Carroll, Cecil, Central and Southeast Howard, Central and
Southeast Montgomery, Charles, Frederick MD, Northern Baltimore,
Northwest Harford, Northwest Howard, Northwest Montgomery, Prince
Georges, Southeast Harford, Southern Baltimore and St. Marys, and
northern Virginia, including the following areas, Arlington/Falls
Church/Alexandria, Central and Southeast Prince
William/Manassas/Manassas Park, Eastern Loudoun, Fairfax, Northern
Fauquier, Northwest Prince William, Southern Fauquier and Western
Loudoun.
* WHEN...From Thursday afternoon through late Thursday night.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Extensive
street flooding and flooding of creeks and rivers are possible.
* ADDITIONAL DETAILS...
- Significant flash flooding is possible. Numerous showers and
thunderstorms will develop and move across the area Thursday
afternoon into Thursday evening. Thunderstorms will be
capable of producing very heavy rain, with rainfall rates of
1 to 2 inches in 30 minutes. Widespread rainfall amounts of 1
to 2 inches are expected. Some areas could experience
multiple rounds of thunderstorms, with higher rainfall
amounts of 4 to 6 inches possible. This could result in
numerous instances of flash flooding. Showers and
thunderstorms will begin early Thursday afternoon, and the
heaviest rainfall is most likely from 3 PM to 8 PM.
- Please visit www.weather.gov/safety/flood for flood safety
and preparedness information
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Flood Watch
National Weather Service Baltimore MD/Washington DC
243 PM EDT Wed Jul 30 2025
MDZ003-VAZ027>031-038>040-050-051-055>057-507-WVZ051>053-310300-
/O.NEW.KLWX.FA.A.0031.250731T1800Z-250801T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Washington-Shenandoah-Frederick VA-Page-Warren-Clarke-Greene-
Madison-Rappahannock-Orange-Culpeper-Stafford-Spotsylvania-King
George-Northern Virginia Blue Ridge-Morgan-Berkeley-Jefferson-
243 PM EDT Wed Jul 30 2025
...FLOOD WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
THURSDAY NIGHT...
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...Portions of north central Maryland, including the
following area, Washington, Virginia, including the following
areas, Clarke, Culpeper, Frederick VA, Greene, King George,
Madison, Northern Virginia Blue Ridge, Orange, Page, Rappahannock,
Shenandoah, Spotsylvania, Stafford and Warren, and panhandle West
Virginia, including the following areas, Berkeley, Jefferson and
Morgan.
* WHEN...From Thursday afternoon through late Thursday night.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- Numerous showers and thunderstorms will develop and move
across the area Thursday afternoon into Thursday evening.
Thunderstorms will be capable of producing very heavy rain,
with rainfall rates of 1 to 2 inches in 30 minutes.
Widespread rainfall amounts of 1 inch are forecast, with up
to 2 to 4 inches of rain under the strongest storms. Some
ares could see multiple rounds of thunderstorms. This could
lead to scattered instances of flash flooding.
- Please visit www.weather.gov/safety/flood for flood safety
and preparedness information
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
KR
Flood Watch
National Weather Service State College PA
219 PM EDT Wed Jul 30 2025
PAZ028-036-041-042-046-049>053-056>059-063-310630-
/O.NEW.KCTP.FA.A.0023.250731T1800Z-250801T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Juniata-Franklin-Northern Lycoming-Sullivan-Southern Lycoming-
Union-Snyder-Montour-Northumberland-Columbia-Perry-Dauphin-
Schuylkill-Lebanon-Cumberland-
Including the cities of Carlisle, Lebanon, Sunbury, Harrisburg,
Bloomsburg, Newport, Williamsport, Chambersburg, Trout Run,
Pottsville, Laporte, Selinsgrove, Shamokin, Danville, Hershey,
Mifflintown, Lewisburg, and Berwick
219 PM EDT Wed Jul 30 2025
...FLOOD WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
THURSDAY NIGHT...
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...A portion of central Pennsylvania, including the following
areas, Columbia, Cumberland, Dauphin, Franklin, Juniata, Lebanon,
Montour, Northern Lycoming, Northumberland, Perry, Schuylkill,
Snyder, Southern Lycoming, Sullivan and Union.
* WHEN...From Thursday afternoon through late Thursday night.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Thunderstorms capable of producing very heavy rainfall rates
in excess of 2 inches per hour may result in flash flooding.
Rainfall amounts of 2 to 3 inches are possible.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Bauco
