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Flood Watch issued June 30 at 3:28PM EDT until June 30 at 11:00PM EDT by NWS Baltimore MD/Washington DC | ||
NWS Baltimore MD/Washington DC | ||
Category | Certainty | Severity |
Met | Possible | Severe |
Status | Urgency | Category |
Actual | Future | Met |
Effective | Ends | Expires |
06/30/2025 03:28 PM | 06/30/2025 11:00 PM | 06/30/2025 11:00 PM |
* 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 |

Hourly Forecast


Mon, 06:00 PM
Chance Showers And ThunderstormsWinds: 10 mph S


Mon, 07:00 PM
Chance Showers And ThunderstormsWinds: 8 mph S


Mon, 08:00 PM
Scattered Showers And ThunderstormsWinds: 6 mph S


Mon, 09:00 PM
Scattered Showers And ThunderstormsWinds: 6 mph S


Mon, 10:00 PM
Scattered Showers And ThunderstormsWinds: 6 mph S


Mon, 11:00 PM
Chance Showers And ThunderstormsWinds: 6 mph S


Tue, 12:00 AM
Chance Showers And ThunderstormsWinds: 6 mph S


Tue, 01:00 AM
Chance Showers And ThunderstormsWinds: 6 mph SW

Tue, 02:00 AM
Mostly CloudyWinds: 6 mph SW

Tue, 03:00 AM
Partly CloudyWinds: 6 mph SW

Tue, 04:00 AM
Partly CloudyWinds: 6 mph S

Tue, 05:00 AM
Partly CloudyWinds: 7 mph S

Tue, 06:00 AM
Mostly SunnyWinds: 7 mph SW

Tue, 07:00 AM
SunnyWinds: 7 mph SW


Tue, 08:00 AM
Slight Chance Rain ShowersWinds: 7 mph SW

Tue, 09:00 AM
SunnyWinds: 7 mph SW

Tue, 10:00 AM
SunnyWinds: 8 mph SW


Tue, 11:00 AM
Chance Showers And ThunderstormsWinds: 8 mph SW


Tue, 12:00 PM
Chance Showers And ThunderstormsWinds: 9 mph SW


Tue, 01:00 PM
Chance Showers And ThunderstormsWinds: 9 mph SW


Tue, 02:00 PM
Chance Showers And ThunderstormsWinds: 10 mph SW


Tue, 03:00 PM
Chance Showers And ThunderstormsWinds: 10 mph SW

Tue, 04:00 PM
Showers And Thunderstorms LikelyWinds: 9 mph S

Tue, 05:00 PM
Showers And ThunderstormsWinds: 9 mph W






















Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY.
Tidal Potomac River and Maryland portion of Chesapeake Bay. Forecasts of wave heights do not include effects of wind direction relative to tidal currents. Expect higher waves when winds are blowing against the tidal flow. Waves flat where waters are iced over. A cold front will approach the water on Tuesday, and eventually move through Tuesday night. High pressure will build in for the middle to end of the week. Small Craft Advisories may be needed on Tuesday. Special Marine Warnings are possible with thunderstorms during the late afternoon and evening hours each day through Tuesday.