weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

2 products issued by NWS for: Washington DC
Share |


Coastal Flood Advisory

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
759 PM EDT THU MAY 25 2017

DCZ001-VAZ054-260300-
/O.CON.KLWX.CF.Y.0032.000000T0000Z-170526T0300Z/
DISTRICT OF COLUMBIA-ARLINGTON/FALLS CHURCH/ALEXANDRIA-
759 PM EDT THU MAY 25 2017

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS
EVENING...

* LOCATIONS...SENSITIVE PORTIONS OF THE WASHINGTON DC AND
  ALEXANDRIA WATERFRONT.

* TIDAL DEPARTURE...1 TO 2 FEET ABOVE NORMAL.

* TIMING...AROUND HIGH TIDE THIS EVENING...WHICH WILL OCCUR
  BETWEEN 8:30 AND 9:00 PM.

* IMPACTS...SHORELINE INUNDATION IS EXPECTED ALONG PORTIONS OF
  THE SEAWALL ADJACENT TO OHIO DRIVE AND THE HAINS POINT LOOP
  ROAD. WATER IS EXPECTED TO APPROACH THE CURB NEAR THE
  INTERSECTION OF KING STREET AND STRAND STREET IN ALEXANDRIA.
  MINOR SHORELINE INUNDATION IS POSSIBLE ELSEWHERE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

&&

&&

FORECAST TIDES ARE REFERENCED TO MEAN LOWER LOW WATER
(MLLW) AND MEAN HIGHER HIGH WATER (MHHW) UNLESS
OTHERWISE NOTED. TIME OF HIGH TOTAL TIDE IS
APPROXIMATE TO NEAREST HOUR. TOTAL TIDE COMBINES THE
NORMAL TIDE AND DEPARTURE FROM NORMAL. FLOOD IMPACT
IS BASED ON THE TOTAL TIDE AND WAVES WHERE APPLICABLE.

$$



Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Baltimore MD/Washington DC
1207 PM EDT Thu May 25 2017

ANZ530>543-DCZ001-MDZ011-013-014-016>018-508-VAZ052>057-261000-
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-Southern Baltimore-Prince Georges-
Anne Arundel-Charles-St. Marys-Calvert-Southeast Harford-
Prince William/Manassas/Manassas Park-Fairfax-
Arlington/Falls Church/Alexandria-Stafford-Spotsylvania-
King George-
1207 PM EDT Thu May 25 2017

This Hazardous Weather Outlook is for the Maryland portion of the
Chesapeake Bay, Tidal Potomac River, and adjacent counties in
central Maryland and northern Virginia as well as the District of
Columbia.

.DAY ONE...This Afternoon and Tonight

Showers and thunderstorms are likely this afternoon into early
this evening. The strongest storms will be capable of producing
large hail...locally damaging winds and perhaps an isolated
tornado. Heavy downpours in thunderstorms will pose a threat for
localized flash flooding of small streams and creeks as well.
Special marine warnings may also be required over the waters.


.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Multiple rounds of showers and thunderstorms are possible
Saturday afternoon into Sunday evening. The potential exists for
some of these storms to produce severe weather and flash flooding.

.SPOTTER INFORMATION STATEMENT...

Limited spotter activation may be needed this afternoon and
evening.

$$



U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE