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Flash Flood Watch

Statement as of 5:30 PM EDT on September 27, 2016

Expires 8:00 AM EDT on September 30, 2016

... Flash Flood Watch in effect from late Wednesday night through
Friday morning...

The National Weather Service in Sterling Virginia has issued a

* Flash Flood Watch for portions of Maryland... the District of
Columbia... Virginia and West Virginia... including the
following areas... in Maryland... Anne Arundel... Calvert...
Carroll... central and eastern Allegany... central and southeast
Howard... central and southeast Montgomery... Charles...
Frederick MD... northern Baltimore... northwest Harford...
northwest Howard... northwest Montgomery... Prince Georges...
southeast Harford... southern Baltimore... St. Marys and
Washington. The District of Columbia. In Virginia...
Arlington/Falls Church/Alexandria... Clarke... Culpeper...
eastern Loudoun... Fairfax... Frederick VA... Greene... King
George... Madison... northern Fauquier... northern Virginia Blue
Ridge... Orange... Page... Prince William/Manassas/Manassas
Park... Rappahannock... Shenandoah... southern Fauquier...
Spotsylvania... Stafford... Warren and western Loudoun. In West
Virginia... Berkeley... eastern Mineral... Hampshire... Hardy...
Jefferson and Morgan.

* From late Wednesday night into Friday morning

* an upper level low pressure over the western Great Lakes will
drop southward into the Ohio Valley Wednesday into Thursday. As
the upper low drops southward... low level flow is forecast to
rapidly increase over the area Wednesday night resulting in
significant moisture transport into the area. Periods of heavy
rainfall are anticipated late Wednesday night through Thursday
night across the central mid-Atlantic. The period of most
intense rainfall is expected late Wednesday night through early
Thursday afternoon. Widespread rainfall amounts of 3 to 5 inches
are expected with localized higher totals in areas of repeated
activity. Eastern slopes of mountains such as the northern Blue
Ridge and Catoctin Mountain also have an increased risk for
higher rain totals.

* Potential exists for flash flooding of small streams... creeks
and urban areas especially in areas of repeated activity.

Precautionary/preparedness actions...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should flash flood warnings be issued.

Weather Severe Map
Alaska - Coastal Flood Warning , High Surf Advisory , Winter Weather Advisory , Special Statement , Record Report
California - Record Report , Public Information Statement
Colorado - Public Information Statement
District of Columbia - Flash Flood Watch
Florida - Beach Hazard Statement
Georgia - Record Report
Guam - High Surf Advisory
Illinois - Flood Warning , Public Information Statement
Indiana - Public Information Statement
Iowa - Flood Warning
Kentucky - Public Information Statement
Maryland - Flash Flood Watch , Special Statement
Minnesota - Flood Warning
Missouri - Flood Warning , Public Information Statement
North Carolina - Flash Flood Warning , Areal Flood Advisory , Special Statement , Beach Hazard Statement , Record Report
Oregon - Record Report
South Carolina - Severe Thunderstorm Warning , Severe Thunderstorm Warning , Special Statement , Record Report
Tennessee - Record Report
Texas - Flood Warning , Air Quality Alert
Virginia - Severe Thunderstorm Warning , Flash Flood Watch , Special Statement , Record Report
Washington - Record Report
West Virginia - Flash Flood Watch
Wisconsin - Flood Warning

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