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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Baltimore MD/Washington DC
1234 PM EDT Thu Mar 21 2019

Washington-Frederick MD-Carroll-Northern Baltimore-
Extreme Western Allegany-Central and Eastern Allegany-
Northwest Montgomery-Central and Southeast Montgomery-
Northwest Howard-Central and Southeast Howard-Northwest Harford-
Augusta-Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke-
Northern Fauquier-Southern Fauquier-Western Highland-
Eastern Highland-Western Loudoun-Eastern Loudoun-
Northern Virginia Blue Ridge-Central Virginia Blue Ridge-
Hampshire-Morgan-Berkeley-Jefferson-Hardy-Western Grant-
Eastern Grant-Western Mineral-Eastern Mineral-Western Pendleton-
Eastern Pendleton-
1234 PM EDT Thu Mar 21 2019

This Hazardous Weather Outlook is for eastern West Virginia,
northern and central Virginia, and central and western Maryland
with the exception of Garrett County.

.DAY ONE...This Afternoon and Tonight
A Winter Storm Warning has been issued through 10 pm for the
northern and central Blue Ridge.

A Flood Watch is in effect through midnight for central Maryland
and portions of northern Virginia. There is the potential for
flooding of small streams and creeks as well as low-lying urban
areas. Elsewhere, localized flooding is possible along and east of
the Interstate 81 corridor.

Mainstem river flooding is possible tonight, especially along the
Monocacy River and Opequon Creek. River Flood Watches have been

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Mainstem river flooding is possible Friday into Saturday,
especially along the Potomac River Basin. River Flood Watches are
in effect until Friday for the Monocacy River and the Opequon

Strong northwest winds may gust around 50 mph, causing the
possibility of isolated wind damage Friday afternoon through
Saturday morning. The best chance for the strongest winds will
along the ridges of the Allegheny and Potomac Highlands as well as
the Blue Ridge and Catoctin Mountains. A Wind Advisory may be

Accumulating snow is expected Friday for locations along and west
of the Allegheny Front. A Winter Weather Advisory may be required.


Spotter activation is not expected at this time.


Flood Watch

Flood Watch
National Weather Service Baltimore MD/Washington DC
225 PM EDT Thu Mar 21 2019

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-Northwest Harford-
Southeast Harford-Prince William/Manassas/Manassas Park-Fairfax-
Arlington/Falls Church/Alexandria-Western Loudoun-Eastern Loudoun-
Including the cities of Washington, Frederick, Ballenger Creek,
Eldersburg, Westminster, Reisterstown, Cockeysville, Baltimore,
Bowie, Suitland-Silver Hill, Clinton, College Park, Greenbelt,
Laurel, Camp Springs, Glen Burnie, Annapolis, Severn, South Gate,
Severna Park, Arnold, Odenton, Germantown, Damascus, Bethesda,
Rockville, Gaithersburg, Silver Spring, Lisbon, Columbia,
Ellicott City, Jarrettsville, Aberdeen, Dale City, Manassas,
Woodbridge, Lake Ridge, Montclair, Reston, Herndon, Annandale,
Centreville, Chantilly, McLean, Franconia, Arlington, Alexandria,
Falls Church, Purcellville, Leesburg, Ashburn, and Sterling
225 PM EDT Thu Mar 21 2019


The Flood Watch continues for

* Portions of Maryland, The District of Columbia, and northern
  Virginia, including the following areas, in Maryland, Anne
  Arundel, Carroll, Central and Southeast Howard, Central and
  Southeast Montgomery, Frederick MD, Northern Baltimore,
  Northwest Harford, Northwest Howard, Northwest Montgomery,
  Prince Georges, Southeast Harford, and Southern Baltimore. The
  District of Columbia. In northern Virginia, Arlington/Falls
  Church/Alexandria, Eastern Loudoun, Fairfax, Prince
  William/Manassas/Manassas Park, and Western Loudoun.

* Until midnight EDT tonight

* A widespread soaking rain around 2 inches is expected.
  Isolated amounts of around 3 inches are possible. The
  steadiest rain is expected through 6 pm this evening, with
  residual runoff possibly persisting through late this evening.

* These rainfall amounts may cause small streams and creeks to
  go out of their banks, as well as cause flooding of low-lying,
  urban and poor drainage areas.


A Flood Watch means there is a potential for flooding based on
current forecasts.

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.




U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
Page last modified: May 16, 2007
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