Extreme Heat Watch issued June 21 at 2:44PM EDT until June 23 at 9:00PM EDT by NWS Baltimore MD/Washington DC
* WHAT...Dangerously hot conditions with heat index values up to 110 possible. * WHERE...Washington DC, and portions of central and northern Maryland, and northern Virginia. * WHEN...From late Monday morning through Monday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
Severe Thunderstorm Warning issued June 19 at 4:14PM EDT until June 19 at 4:45PM EDT by NWS Baltimore MD/Washington DC
At 413 PM EDT, severe thunderstorms were located along a line extending from North Potomac to near Newington, moving northeast at 45 mph. HAZARD...70 mph wind gusts. SOURCE...Emergency management reports a history of downed trees with this line of storms. IMPACT...Damaging winds will cause some trees and large branches to fall. This could injure those outdoors, as well as damage homes and vehicles. Roadways may become blocked by downed trees. Localized power outages are possible. Unsecured light objects may become projectiles. Locations impacted include... Arlington, Alexandria, Columbia, Dale City, Rockville, Bethesda, Gaithersburg, Reston, Bowie, Annandale, Clinton, Olney, Springfield, College Park
Severe Thunderstorm Watch issued June 19 at 1:46PM EDT until June 19 at 9:00PM EDT by NWS Baltimore MD/Washington DC
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 442 IN EFFECT UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS THE DISTRICT OF COLUMBIA IN MARYLAND THIS WATCH INCLUDES 14 COUNTIES IN CENTRAL MARYLAND ANNE ARUNDEL HOWARD MONTGOMERY PRINCE GEORGES IN NORTH CENTRAL MARYLAND CARROLL FREDERICK WASHINGTON IN NORTHEAST MARYLAND CECIL IN NORTHERN MARYLAND BALTIMORE BALTIMORE CITY HARFORD IN SOUTHERN MARYLAND CALVERT CHARLES ST. MARYS IN VIRGINIA THIS WATCH INCLUDES 33 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
Flood Watch issued June 19 at 11:37AM EDT until June 19 at 9:00PM EDT by NWS Baltimore MD/Washington DC
* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Washington DC, portions of Maryland, including the following areas, Anne Arundel, Central and Southeast Howard, Central and Southeast Montgomery, Prince Georges and Southern Baltimore, and portions of northern Virginia, including the following areas, Arlington/Falls Church/Alexandria and Fairfax. * WHEN...From 3 PM this afternoon to 9 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... - Showers and thunderstorms may produce rainfall rates around 1 inch per
Flood Watch issued June 18 at 3:55PM EDT until June 18 at 8:00PM EDT by NWS Baltimore MD/Washington DC
* 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, Charles and Prince Georges, and northern Virginia, including the following areas, Arlington/Falls Church/Alexandria, Central and Southeast Prince William/Manassas/Manassas Park and Fairfax. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Showers and thunderstorms are likely this afternoon through early this evening. Some thunderstorms will produce heavy rainfall with amounts around 1 to
Special Weather Statement issued June 18 at 9:37AM EDT by NWS Baltimore MD/Washington DC
The dense fog has lifted and visibility will continue to improve throughout the rest of the morning.
Flood Watch issued June 17 at 9:08AM EDT until June 18 at 12:00AM EDT by NWS Baltimore MD/Washington DC
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...The District of Columbia, the following in Maryland, Montgomery, Frederick MD, and Prince Georges, and the following in northern Virginia, Arlington/Falls Church/Alexandria. * WHEN...From 5 PM EDT this afternoon through this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Showers are likely with scattered thunderstorms this afternoon and evening. Some thunderstorms will contain heavy rainfall, with rain amounts of 1 to 2 inches in an hour or two. Storms may also train over the
Flood Watch issued June 16 at 2:42AM EDT until June 17 at 12:00AM EDT by NWS Baltimore MD/Washington DC
* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of western Maryland, including the following areas, Eastern Garrett, Extreme Western Allegany and Western Garrett, western Virginia, including the following areas, Eastern Highland and Western Highland, and eastern West Virginia, including the following areas, Eastern Grant, Eastern Pendleton, Western Grant, Western Mineral and Western Pendleton. * WHEN...From noon EDT today through this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - - Numerous
Flood Warning issued June 15 at 10:02PM EDT until June 16 at 6:00AM EDT by NWS Baltimore MD/Washington DC
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of southern Maryland, including the following county, Charles. * WHEN...Until 600 AM EDT Monday. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Streams continue to rise due to excess runoff from earlier rainfall. * ADDITIONAL DETAILS... - At 1002 PM EDT, Doppler radar indicated heavy rain due to thunderstorms. Flooding is ongoing or expected to begin shortly in the warned area. Between 1 and 3 inches of rain have fallen. - Flooding impacts will continue, but no additional rainfall is expected.
Flood Warning issued June 15 at 9:52PM EDT until June 16 at 2:00AM EDT by NWS Baltimore MD/Washington DC
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Portions of Maryland, including the following counties, Charles and Prince Georges and northern Virginia, including the following county, Fairfax. * WHEN...Until 200 AM EDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 950 PM EDT, Doppler radar indicated heavy rain due to thunderstorms. Flooding is ongoing or expected to begin shortly in the warned area. Between 2 and 3.5 inches of rain have fallen. - Additional rainfall amounts up to 0.5 inches are possible in the warned area.