3 products issued by NWS for: Washington DC
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service Baltimore MD/Washington DC 527 PM EDT Sun Aug 16 2026 ANZ530>543-DCZ001-MDZ008-011-013-014-016>018-504-506-508- VAZ053>057-527-171000- Chesapeake Bay north of Pooles Island MD- Chesapeake Bay from Pooles Island to Sandy Point MD- Chesapeake Bay from Sandy Point to North Beach MD- Chesapeake Bay from North Beach to Drum Point MD- Chesapeake Bay from Drum Point MD to Smith Point VA- Tidal Potomac from Key Bridge to Indian Head MD- Tidal Potomac from Indian Head to Cobb Island MD- Tidal Potomac from Cobb Island MD to Smith Point VA- Patapsco River including Baltimore Harbor- Chester River to Queenstown MD-Eastern Bay- Choptank River to Cambridge MD and the Little Choptank River- Patuxent River to Broomes Island MD- Tangier Sound and the inland waters surrounding Bloodsworth Island-District of Columbia-Cecil-Southern Baltimore- Prince Georges-Anne Arundel-Charles-St. Marys-Calvert- Central and Southeast Montgomery-Central and Southeast Howard- Southeast Harford-Fairfax-Arlington/Falls Church/Alexandria- Stafford-Spotsylvania-King George- Central and Southeast Prince William/Manassas/Manassas Park- 527 PM EDT Sun Aug 16 2026 This Hazardous Weather Outlook is for the Maryland portion of the Chesapeake Bay, Tidal Potomac River, and I-95 corridor through central Maryland, northern Virginia, and District of Columbia. .DAY ONE...Tonight Severe Thunderstorm Watch Number 588 is in effect for much of central Maryland and parts of southern Maryland, northeastern and eastern Virginia, the District of Columbia, and for the northern and central Tidal Potomac River until 11 PM. A Flood Watch is in effect for parts of central and southern Maryland, northeastern and eastern Virginia, and the District of Columbia from 8 PM to 3 AM tonight. Multiple rounds of showers and strong to severe thunderstorms expected well into this evening into parts of the overnight. Damaging wind gusts and scattered instances of flash flooding are the main threats, especially if heavier rain falls over urban and poor drainage areas. An isolated tornado or two is also possible. .DAYS TWO THROUGH SEVEN...Monday through Saturday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. $$
Flood Watch
Flood Watch
National Weather Service Baltimore MD/Washington DC
522 PM EDT Sun Aug 16 2026
DCZ001-MDZ013-016-504-VAZ053>057-506-526-527-170530-
/O.EXB.KLWX.FA.A.0015.260816T2300Z-260817T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
District of Columbia-Prince Georges-Charles-Central and Southeast
Montgomery-Fairfax-Arlington/Falls Church/Alexandria-Stafford-
Spotsylvania-King George-Eastern Loudoun-Northwest Prince William-
Central and Southeast Prince William/Manassas/Manassas Park-
522 PM EDT Sun Aug 16 2026
...FLOOD WATCH IN EFFECT UNTIL 3 AM EDT MONDAY...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...The District of Columbia, portions of Maryland, including
the following areas, Central and Southeast Montgomery, Charles and
Prince Georges, and Virginia, including the following areas,
Arlington/Falls Church/Alexandria, Central and Southeast Prince
William/Manassas/Manassas Park, Eastern Loudoun, Fairfax, King
George, Northwest Prince William, Spotsylvania and Stafford.
* WHEN...Until 3 AM EDT Monday.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Multiple rounds of showers and thunderstorms are expected to
move through the Watch area this evening through the first
half of the night. A widespread 1 to 2 inches of rain is
expected, with localized totals of 2 to 4 inches where
training or backbuilding occurs. Some instances of flooding
are expected to occur, especially in urban areas that receive
multiple rounds of storms.
- Please visit www.weather.gov/safety/flood for flood safety
and preparedness information
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Severe Thunderstorm Watch
SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 588 NWS STORM PREDICTION CENTER NORMAN OK 435 PM EDT SUN AUG 16 2026 SEVERE THUNDERSTORM WATCH 588 IS IN EFFECT UNTIL 1100 PM EDT FOR THE FOLLOWING LOCATIONS DCC001-170300- /O.NEW.KWNS.SV.A.0588.260816T2035Z-260817T0300Z/ DC . DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE DISTRICT OF COLUMBIA $$