* WHAT...For the Coastal Flood Warning, one to two feet of
inundation above ground level in low lying areas due to tidal
flooding. For the Coastal Flood Advisory, one to two feet of
inundation above ground level expected in low lying areas due
to tidal flooding.

* WHERE...Shoreline in the District of Columbia, Arlington
County, and the City of Alexandria.

* WHEN...For the Coastal Flood Warning, until 2 AM EDT Sunday,
especially around the time of high tide. For the Coastal Flood
Advisory, from 9 AM Sunday to 4 AM EDT Monday, especially
around the time of high tide.

* IMPACTS...The unprotected area on the Southwest Waterfront at
the DC Seafood Market is expected to flood. Water is expected to
approach parts of the Hains Point Loop Road, but it will likely
be closed. Water is expected to approach buildings near King
Street and Union Street.

* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tide at Alexandria is at 11:43 PM and
12:20 PM. The next high tide at Washington Channel is at 11:25
PM and 12:02 PM.

* WHAT...For the Coastal Flood Warning, one to two feet of
inundation above ground level in low lying areas due to tidal
flooding. For the Coastal Flood Advisory, one to two feet of
inundation above ground level expected in low lying areas due
to tidal flooding.

* WHERE...Shoreline in the District of Columbia, Arlington
County, and the City of Alexandria.

* WHEN...For the Coastal Flood Warning, until 2 AM EDT Sunday,
especially around the time of high tide. For the Coastal Flood
Advisory, from 9 AM Sunday to 4 AM EDT Monday, especially
around the time of high tide.

* IMPACTS...The unprotected area on the Southwest Waterfront at
the DC Seafood Market is expected to flood. Water is expected to
approach parts of the Hains Point Loop Road, but it will likely
be closed. Water is expected to approach buildings near King
Street and Union Street.

* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tide at Alexandria is at 11:43 PM and
12:20 PM. The next high tide at Washington Channel is at 11:25
PM and 12:02 PM.

...Slow moving showers and thunderstorms will overspread the watch
area this afternoon and evening. Intense rainfall rates are
possible...

* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.

* WHERE...Portions of DC, including the following , District of
Columbia, Maryland, including the following areas, Anne Arundel,
Cecil, Central and Southeast Howard, Central and Southeast
Montgomery, Prince Georges, Southeast Harford and Southern
Baltimore, and northern Virginia, including the following areas,
Arlington/Falls Church/Alexandria and Fairfax.

* WHEN...Until 10 PM EDT this evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas.

* ADDITIONAL DETAILS...
- Multiple rounds of showers and thunderstorms are possible
from mid afternoon through late evening. Given the humid
environment, thunderstorms may be capable of producing 2
inches of rain in an hour, with isolated localized totals of
around 5 inches possible in areas where multiple
thunderstorms occur.
- Please visit weather.gov/safety/flood for flood safety and
preparedness information.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
591 IN EFFECT UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS

THE DISTRICT OF COLUMBIA

IN MARYLAND THIS WATCH INCLUDES 13 COUNTIES

IN CENTRAL MARYLAND

ANNE ARUNDEL HOWARD
MONTGOMERY
PRINCE GEORGES

IN NORTH CENTRAL MARYLAND

CARROLL FREDERICK

IN NORTHEAST MARYLAND

CECIL

IN NORTHERN MARYLAND

BALTIMORE
BALTIMORE CITY
HARFORD

IN SOUTHERN MARYLAND

CALVERT CHARLES
ST. MARYS

IN VIRGINIA THIS WATCH INCLUDES 22 COUNTIES

IN CENTRAL VIRGINIA

ALBEMARLE
CITY OF CHARLOTTESVILLE
CITY OF FREDERICKSBURG
GREENE KING GEORGE
NELSON ORANGE
SPOTSYLVANIA

IN NORTHERN VIRGINIA

ARLINGTON
CITY OF ALEXANDRIA
CITY OF FAIRFAX
CITY OF FALLS CHURCH
CITY OF MANASSAS
CITY OF MANASSAS PARK
CULPEPER FAIRFAX
FAUQUIER LOUDOUN
PRINCE WILLIAM
STAFFORD

IN NORTHWEST VIRGINIA

MADISON RAPPAHANNOCK

THIS INCLUDES THE CITIES OF ABERDEEN, ALEXANDRIA, ANNAPOLIS,
ARLINGTON, ARNOLD, ASPEN HILL, BALLENGER CREEK, BALTIMORE,
BEL AIR, BETHESDA, BOWIE, CALIFORNIA, CAMP SPRINGS, CATONSVILLE,
CHANTILLY, CHARLOTTESVILLE, CHESAPEAKE BEACH, CLINTON,
COLLEGE PARK, COLUMBIA, CROZET, CULPEPER, DAHLGREN, DUNDALK,
DUNKIRK, EDGEWOOD, ELDERSBURG, ELKTON, ELLICOTT CITY, ESSEX,
FAIRFAX, FALLS CHURCH, FALLSTON, FALMOUTH, FREDERICK,
FREDERICKSBURG, GAITHERSBURG, GERMANTOWN, GLEN BURNIE,
GORDONSVILLE, GREENBELT, GREENFIELD, HAVRE DE GRACE, HERNDON,
HUNTINGTOWN, JOPPATOWNE, LAUREL, LEESBURG, LEXINGTON PARK, LUSBY,
MADISON, MANASSAS, MANASSAS PARK, MCLEAN, NORTH BEACH, ODENTON,
ORANGE, PARKVILLE, PIKESVILLE, POTOMAC, PRINCE FREDERICK,
RANDALLSTOWN, RESTON, ROCKVILLE, SEVERN, SEVERNA PARK,
SILVER SPRING, SOUTH GATE, SPOTSYLVANIA COURTHOUSE, ST. CHARLES,
STANARDSVILLE, STERLING, SUITLAND-SILVER HILL, TOWSON, WALDORF,
WARRENTON, WASHINGTON, WASHINGTON, WESTMINSTER, AND WOODBRIDGE.

* WHAT...Flooding caused by excessive rainfall is possible.

* WHERE...Portions of DC, including the following , District of
Columbia, Maryland, including the following areas, Anne Arundel,
Carroll, Cecil, 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, and Virginia, including
the following areas, Arlington/Falls Church/Alexandria, Central
and Southeast Prince William/Manassas/Manassas Park, Culpeper,
Eastern Loudoun, Fairfax, Greene, Madison, Northern Fauquier,
Northwest Prince William, Rappahannock, Southern Fauquier and
Western Loudoun.

* WHEN...Through this afternoon.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Low-water
crossings may be flooded.

* ADDITIONAL DETAILS...
- Multiple rounds of showers and thunderstorms are expected
through late afternoon. Additional rain amounts of 1 to 2
inches of rain are most likely, with localized amounts up to
3 inches possible. This may result in flooding of small
streams and creeks. Flash flooding is possible.
- Please visit www.weather.gov/safety/flood for flood safety
and preparedness information

* WHAT...Up to one half foot of inundation above ground level in
low lying areas due to tidal flooding.

* WHERE...Shoreline in the City of Alexandria and Arlington
County.

* WHEN...Until 1 PM EST Tuesday, especially around the time of
high tide.

* IMPACTS...Water is expected to approach the curb near the
intersection of King Street and Strand Street in Alexandria.

* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tide at Alexandria is at 10:49 AM and
11:23 PM.

* WHAT...Flooding caused by excessive rainfall continues to be
possible.

* WHERE...The District of Columbia, the following areas in Maryland,
Anne Arundel, Calvert, Carroll, Cecil, 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, Virginia, including the following areas,
Albemarle, Arlington/Falls Church/Alexandria, Augusta, Central
Virginia Blue Ridge, Central and Southeast Prince
William/Manassas/Manassas Park, Clarke, Culpeper, Eastern Loudoun,
Fairfax, Frederick VA, Greene, King George, Madison, Nelson,
Northern Fauquier, Northern Virginia Blue Ridge, Northwest Prince
William, Orange, Page, Rappahannock, Rockingham, Shenandoah,
Southern Fauquier, Spotsylvania, Stafford, Warren and Western
Loudoun, and panhandle West Virginia, including the following
areas, Berkeley, Jefferson and Morgan.

* WHEN...Through Wednesday morning.

* IMPACTS...Excessive runoff may result in flooding of creeks and
streams as well as urban areas and other low-lying and flood-prone
locations.

* ADDITIONAL DETAILS...
- A period of moderate to heavy rain will continue through this
evening. Rainfall totals of 1.5 to 3 inches are expected with
localized amounts around 4 to 5 inches possible. The highest
rainfall totals are most likely along the eastern slopes of
the Blue Ridge Mountains.

The heaviest rainfall is most likely between 3 pm and 7 pm
this afternoon into this evening near and west of the Blue
Ridge Mountains, and between 6 pm and 10 pm this evening for
the Washington and Baltimore Metropolitan areas and locations
to the south and east. Rainfall rates around one inch per
hour possible and this will exacerbate the flood potential
due to saturated soils.
- Please visit www.weather.gov/safety/flood for flood safety
and preparedness information

Weather conditions will deteriorate as a strong frontal system
approaches this afternoon, then passes through the greater
Baltimore/Washington region this evening. This will result high
winds capable of downing trees and powerlines, tidal flooding, and
the potential for flooding of small streams and creeks. This
will create hazardous travel conditions late this afternoon
through late evening across the region.

Light-to-moderate rain will continue early this afternoon, then
increase in intensity late this afternoon, with a several hour
period of heavy, intense rainfall expected between 6 PM and 10 PM.
This heavy rainfall, coupled with already saturated soils from
recent rainfall, will cause flooding of small streams and creeks.
Do not attempt to drive across flooded roadways; additionally,
flooding at night increases the risk for motorists not being able
to quickly identify the water hazards due to decreased
visibilities by the heavy rain and darkness.

Easterly winds will increase in intensity as well this afternoon
across the region, with gusts to 50 MPH expected late this
afternoon through mid-evening. Locations closer to the Chesapeake
Bay will see higher wind gusts of 60-70 MPH. Strong winds will
increase the risk of falling trees and downed powerlines. Again,
the risk of poor outcomes resulting from high winds is increased
during nighttime. Winds will decrease after midnight tonight.

Finally, areas along the tidal Potomac River and western shore of
the Chesapeake Bay north of Smith Point VA should prepare for
moderate-to-major tidal flooding. The cities of Baltimore, Annapolis
MD, and Alexandria VA are most prone to tidal flooding, and the
coupling of heavy rainfall and strong onshore winds of 50-60 MPH
in these locations will work together to create moderate-to-major
tidal impacts.

Repeating, a strong frontal system will approach and pass through
the greater Baltimore/Washington region late this afternoon into
this evening. Small stream and creek flooding, tidal flooding,
and high winds will create hazardous conditions late this
afternoon through late evening. Motorists should expect hazardous
conditions in their evening commute, and should avoid unnecessary
travel. Prepare for the potential for power outages.

Stay tuned to your favorite media outlet, All Hazards NOAA
Weather Radio, or www.weather.gov/washington for further updates.

* WHAT...Southeast winds 25 to 40 mph with gusts up to 60 mph
expected.

* WHERE...In District of Columbia, District of Columbia. In
Maryland, Prince Georges, Charles, Central and Southeast
Montgomery and Central and Southeast Howard Counties. In
Virginia, Fairfax, Stafford, King George and Central and
Southeast Prince William/Manassas/Manassas Park Counties, and
Arlington/Falls Church/Alexandria.

* WHEN...Until 1 AM EST Wednesday.

* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be
difficult, especially for high profile vehicles.

* WHAT...For the Coastal Flood Advisory, up to one half foot of
inundation above ground level expected in low lying areas due
to tidal flooding. For the Coastal Flood Warning, one to two
feet of inundation above ground level expected in low lying
areas due to tidal flooding.

* WHERE...Shoreline in the District of Columbia, Arlington
County, and the City of Alexandria.

* WHEN...For the Coastal Flood Advisory, until 10 PM EST this
evening, especially around the time of high tide. For the
Coastal Flood Warning, from 10 PM this evening to 10 AM EST
Wednesday, especially around the time of high tide.

* IMPACTS...The unprotected area on the Southwest Waterfront at
the DC Seafood Market is expected to flood. Water is expected
to approach parts of the Hains Point Loop Road, but it will
likely be closed. Water is expected to approach buildings near
King Street and Union Street.

* ADDITIONAL DETAILS...Tides up to 4 feet above normal. The next
high tides at Alexandria are at 6:29 PM and 7:07 AM. The next
high tides at Washington Channel are at 6:11 PM and 6:49 AM.