
Flood Warning
Flood Warning
National Weather Service Baltimore MD/Washington DC
736 AM EDT FRI MAY 18 2018
MDC009-017-033-037-VAC099-181800-
/O.EXT.KLWX.FA.W.0040.000000T0000Z-180518T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
St. Marys MD-Calvert MD-Prince Georges MD-Charles MD-King George VA-
736 AM EDT FRI MAY 18 2018
The National Weather Service in Sterling Virginia has extended the
* Flood Warning for...
St. Marys County in southern Maryland...
Calvert County in southern Maryland...
Southern Prince Georges County in central Maryland...
Charles County in southern Maryland...
King George County in central Virginia...
* Until 200 PM EDT Friday.
* At 734 AM EDT, Doppler radar indicated persistent rain continuing
across the area. Streams are rising as a result of between one
half inch and two inches of rain. The highest likelihood of
flooding is in southern St. Marys County and southern Calvert
County, where heavier rain is falling. Flooding of small streams
is likely in the next few hours in these areas.
* Some locations that may experience flooding include...
Waldorf, Lexington Park, Chesapeake Ranch Estates, La Plata,
Chesapeake Beach, King George, Leonardtown, Dahlgren, Prince
Frederick, Piney Point, Tall Timbers, Fairview Beach, Saint Inigoes
Creek, Popes Creek, Hallowing Point, Saint Leonard Creek, Town
Creek, Sheridan Point, Saint Clements Bay and Nanjemoy Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3802 7630 3809 7649 3820 7661 3821 7679
3832 7698 3826 7704 3814 7707 3819 7725
3824 7722 3825 7727 3822 7729 3827 7735
3837 7727 3853 7727 3875 7673 3872 7651
3852 7648 3839 7635 3832 7639 3815 7629
$$
JE
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Baltimore MD/Washington DC
506 AM EDT Fri May 18 2018
ANZ530>543-DCZ001-MDZ011-013-014-016>018-508-VAZ052>057-191000-
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-
506 AM EDT Fri May 18 2018
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...Today and Tonight
A Flood Watch is in effect through tonight. Excessive runoff from
heavy rain may cause creeks and streams to rise out of their banks
as well as flooding of low-lying areas.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday
The Flood Watch continues until 8 am Saturday morning. Flooding on
the Potomac, Rappahannock, and Shenandoah River Basins may
continue through the weekend, and possibly into early next week.
A Coastal Flood Watch is in effect for the tidal Potomac River in
Washington DC and Alexandria VA for Saturday through Sunday.
Significant tidal flooding is possible during this time due to
freshwater rushing downstream from the heavy rain.
.SPOTTER INFORMATION STATEMENT...
Please relay any flood reports to the National Weather Service.
$$
Flood Watch
Flood Watch
National Weather Service Baltimore MD/Washington DC
321 AM EDT Fri May 18 2018
DCZ001-MDZ003>006-011-013-014-016>018-501>508-VAZ025>031-036>040-
050>057-501>508-WVZ050>053-055-501>506-181530-
/O.CON.KLWX.FA.A.0002.000000T0000Z-180519T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
District of Columbia-Washington-Frederick MD-Carroll-
Northern Baltimore-Southern Baltimore-Prince Georges-Anne Arundel-
Charles-St. Marys-Calvert-Extreme Western Allegany-
Central and Eastern Allegany-Northwest Montgomery-
Central and Southeast Montgomery-Northwest Howard-
Central and Southeast Howard-Northwest Harford-Southeast Harford-
Augusta-Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke-
Nelson-Albemarle-Greene-Madison-Rappahannock-Orange-Culpeper-
Prince William/Manassas/Manassas Park-Fairfax-
Arlington/Falls Church/Alexandria-Stafford-Spotsylvania-
King George-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-
Including the cities of Washington, Hagerstown, 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,
St. Charles, Waldorf, Lexington Park, California,
Chesapeake Beach, Huntingtown, Dunkirk, North Beach, Lusby,
Prince Frederick, Frostburg, Cumberland, Germantown, Damascus,
Bethesda, Rockville, Gaithersburg, Silver Spring, Lisbon,
Columbia, Ellicott City, Jarrettsville, Aberdeen, Staunton,
Waynesboro, Stuarts Draft, Harrisonburg, Strasburg, Woodstock,
Mount Jackson, New Market, Winchester, Luray, Shenandoah,
Stanley, Front Royal, Berryville, Lovingston, Charlottesville,
Stanardsville, Madison, Orange, Gordonsville, Culpeper,
Dale City, Manassas, Woodbridge, Lake Ridge, Montclair, Reston,
Herndon, Annandale, Centreville, Chantilly, McLean, Franconia,
Arlington, Alexandria, Falmouth, Fredericksburg, Dahlgren,
Warrenton, Turnbull, Hightown, Monterey, Purcellville, Leesburg,
Ashburn, Sterling, Big Meadows, Wintergreen, Romney, Paw Paw,
Martinsburg, Charles Town, Shepherdstown, Moorefield, Bayard,
Mount Storm, Petersburg, Elk Garden, Antioch, Keyser, New Creek,
Ridgeville, Russelldale, Headsville, Fort Ashby, Riverton,
Brandywine, Franklin, Oak Flat, Ruddle, and Sugar Grove
321 AM EDT Fri May 18 2018
...FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY MORNING...
The Flood Watch continues 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, Extreme Western Allegany, 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, Albemarle, Arlington/Falls
Church/Alexandria, Augusta, Central Virginia Blue Ridge,
Clarke, Culpeper, Eastern Highland, Eastern Loudoun, Fairfax,
Frederick VA, Greene, King George, Madison, Nelson, Northern
Fauquier, Northern Virginia Blue Ridge, Orange, Page, Prince
William/Manassas/Manassas Park, Rappahannock, Rockingham,
Shenandoah, Southern Fauquier, Spotsylvania, Stafford, Warren,
Western Highland, and Western Loudoun. In West Virginia,
Berkeley, Eastern Grant, Eastern Mineral, Eastern Pendleton,
Hampshire, Hardy, Jefferson, Morgan, Western Grant, Western
Mineral, and Western Pendleton.
* Through Saturday morning.
* Periods of rain will continue across the region through at least
Friday night. This rain will be heavy at times, with overall
additional rainfall of 3 to 5 inches across southern Maryland
and the Virginia Piedmont, and 1 to 3 inches elsewhere. While
flash flooding cannot be ruled out, the primary concern is
flooding of small streams and low-lying areas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.