Hazardous Weather Outlook for Harmony Hill, Maryland
Hazardous Weather Outlook
National Weather Service Baltimore MD/Washington DC
147 PM EDT Mon Jun 30 2025
MDZ003>006-503-505-507-VAZ025>031-036>040-050-051-501-502-505>508-
526-WVZ050>053-055-011000-
Washington-Frederick MD-Carroll-Northern Baltimore-
Northwest Montgomery-Northwest Howard-Northwest Harford-Augusta-
Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke-Nelson-
Albemarle-Greene-Madison-Rappahannock-Orange-Culpeper-
Northern Fauquier-Southern Fauquier-Western Loudoun-
Eastern Loudoun-Northern Virginia Blue Ridge-
Central Virginia Blue Ridge-Northwest Prince William-Hampshire-
Morgan-Berkeley-Jefferson-Hardy-
147 PM EDT Mon Jun 30 2025
This Hazardous Weather Outlook is for portions of eastern West
Virginia, northern and central Virginia, and central and western
Maryland.
.DAY ONE...This Afternoon and Tonight
Scattered to numerous thunderstorms are expected this afternoon
into this evening. A few thunderstorms could produce damaging
wind gusts and localized flash flooding.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday
Thunderstorms are likely on Tuesday afternoon into Tuesday evening
as a cold front moves through the region. Some storms may be
capable of producing damaging wind gusts and scattered instances
of flash flooding.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed on Tuesday.
Flood Watch for Harmony Hill, Maryland
Flood Watch
National Weather Service Baltimore MD/Washington DC
328 PM EDT Mon Jun 30 2025
DCZ001-MDZ004>006-011-013-014-503>506-VAZ053-054-506-010300-
/O.CON.KLWX.FA.A.0020.250630T2100Z-250701T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
District of Columbia-Frederick MD-Carroll-Northern Baltimore-
Southern Baltimore-Prince Georges-Anne Arundel-Northwest
Montgomery-Central and Southeast Montgomery-Northwest Howard-
Central and Southeast Howard-Fairfax-Arlington/Falls
Church/Alexandria-Eastern Loudoun-
328 PM EDT Mon Jun 30 2025
...FLOOD WATCH REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of DC, including the following , District of
Columbia, Maryland, including the following areas, Anne Arundel,
Carroll, Central and Southeast Howard, Central and Southeast
Montgomery, Frederick MD, Northern Baltimore, Northwest Howard,
Northwest Montgomery, Prince Georges and Southern Baltimore, and
northern Virginia, including the following areas, Arlington/Falls
Church/Alexandria, Eastern Loudoun and Fairfax.
* WHEN...Until 11 PM EDT this evening.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Thunderstorms are expected to develop in the next couple of
hours across parts of the Baltimore and Washington metro
areas. Storms are expected to be slow movers and be capable
of producing intense rainfall rates of 1 to 2 inches per
hour, which may result in flash flooding of small streams,
creeks, urban and poor drainage areas.
- Please visit www.weather.gov/safety/flood for flood safety
and preparedness information
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.