Alert archive / Virginia / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 24, NWS Baltimore/Washington
NWS Baltimore/Washington issued this severe thunderstorm warning at Apr 5, 2011, 4:05 AM EDT for King George County, Spotsylvania County, Stafford County, Virginia. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 5, 2011, 4:05 AM EDT (08:05 UTC)
- Expired
- Apr 5, 2011, 4:45 AM EDT
- In force
- 40 min
- Issued by
- NWS Baltimore/Washington
- Area
- Storm-based polygon
Counties King George County, VA, Spotsylvania County, VA, Stafford County, VA
The radar
The Sterling radar (KLWX), 76 km from the middle of the area, began a volume at 08:07 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 5, 2:18 AM EDT | Tornado Watch | SPC | 8 hr |
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Baltimore/Washington wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 5, 2:28 AM EDT, 1 hour 37 minutes earlier.
Area forecast discussion, Apr 5, 2:28 AM EDT, 1 hour 37 minutes before
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</html>Hazardous weather outlook, Apr 5, 2:28 AM EDT, 1 hour 37 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 228 AM EDT TUE APR 5 2011 ANZ530>543-DCZ001-MDZ006-007-011-013-014-016>018-VAZ052>057- 051500- 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-NORTHERN BALTIMORE-HARFORD- SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS- CALVERT-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX- ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA- KING GEORGE- 228 AM EDT TUE APR 5 2011 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...TONIGHT TORNADO WATCH NUMBER 101 IS IN EFFECT FOR THE I-95 CORRIDOR OF EASTERN MARYLAND AND NORTH CENTRAL VIRGINIA THROUGH 10 AM. SHOWERS AND SCATTERED THUNDERSTORMS ARE EXPECTED TO MOVE INTO THE AREA OVERNIGHT. THE MAIN THREATS WILL BE DAMAGING WINDS...LARGE HAIL...ISOLATED TORNADOES AND HEAVY RAINFALL THAT COULD LEAD TO FLASH FLOODING. A GALE WARNING IS IN EFFECT FOR MARYLAND PORTION OF THE CHESAPEAKE BAY AND FOR THE TIDAL POTOMAC RIVER TONIGHT. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A SMALL CRAFT ADVISORY IS IN EFFECT THROUGH 8PM TUESDAY FOR THE ENTIRE MARINE AREA. THE SMALL CRAFT ADVISORY CONTINUES THROUGH 5AM WEDNESDAY FOR THE LOWER TIDAL POTOMAC RIVER AS WELL AS FOR THE MARYLAND PORTION OF THE CHESAPEAKE BAY. A SMALL CRAFT ADVISORY MAY BE REQUIRED DURING THE DAY ON WEDNESDAY AND WEDNESDAY EVENING FOR A PORTION OF THE WATERS. .SPOTTER INFORMATION STATEMENT... SKYWARN HAS BEEN ACTIVATED. PLEASE RELAY REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE. MDZ003>005-009-010-501-502-VAZ025>031-036>040-042-050-051-501>504- WVZ050>053-055-501>506-051500- WASHINGTON-FREDERICK MD-CARROLL-MONTGOMERY-HOWARD- EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-AUGUSTA- ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-NELSON- ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-LOUDOUN-ORANGE-CULPEPER- NORTHERN FAUQUIER-SOUTHERN FAUQUIER-WESTERN HIGHLAND- EASTERN HIGHLAND-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-HARDY- WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL- WESTERN PENDLETON-EASTERN PENDLETON- 228 AM EDT TUE APR 5 2011 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...TONIGHT TORNADO WATCH NUMBER 101 IS IN EFFECT FOR AREAS OF EASTERN MARYLAND AND NORTHERN VIRGINIA EAST OF THE BLUE RIDGE THROUGH 10 AM. SHOWERS AND SCATTERED THUNDERSTORMS ARE EXPECTED TO MOVE INTO THE AREA OVERNIGHT. THE MAIN THREATS WILL BE DAMAGING WINDS...LARGE HAIL...ISOLATED TORNADOES AND HEAVY RAINFALL THAT COULD LEAD TO FLASH FLOODING. A WIND ADVISORY IS IN EFFECT THROUGH TONIGHT FOR THE HIGH ELEVATIONS OF THE POTOMAC HIGHLANDS AND CENTRAL FOOTHILLS. WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A WIND ADVISORY CONTINUES THROUGH 10 AM FOR THE HIGH ELEVATIONS OF THE POTOMAC HIGHLANDS AND CENTRAL FOOTHILLS. WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE. .SPOTTER INFORMATION STATEMENT... SKYWARN HAS BEEN ACTIVATED. PLEASE RELAY REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE.
In the hours before
Special weather statement, Apr 4, 10:41 PM EDT, 5 hours 24 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1041 PM EDT MON APR 4 2011 DCZ001-MDZ004>007-009>011-013-014-VAZ042-053-054-050500- DISTRICT OF COLUMBIA-FREDERICK MD-CARROLL-NORTHERN BALTIMORE- HARFORD-MONTGOMERY-HOWARD-SOUTHERN BALTIMORE-PRINCE GEORGES- ANNE ARUNDEL-LOUDOUN-FAIRFAX-ARLINGTON/FALLS CHURCH/ALEXANDRIA- INCLUDING THE CITIES OF...WASHINGTON...FREDERICK...WESTMINSTER... GAITHERSBURG...COLUMBIA...BALTIMORE...ANNAPOLIS...LEESBURG... FAIRFAX...ALEXANDRIA...FALLS CHURCH 1041 PM EDT MON APR 4 2011 ...ENHANCED THREAT FOR WILDFIRES CONTINUES THIS EVENING... SOUTHWEST WINDS OF 15 TO 25 MPH WILL GUST UP TO 35 MPH THROUGH THE REST OF THIS EVENING. RELATIVE HUMIDITIES WILL REMAIN BETWEEN 25 AND 30 PERCENT...BEFORE RECOVERING SOME OVERNIGHT. THESE FACTORS COMBINED WITH RELATIVELY DRY FUELS WILL ENHANCE THE THREAT FOR WILDFIRES ACROSS PORTIONS OF NORTH CENTRAL MARYLAND...THE DISTRICT OF COLUMBIA AND NORTHERN VIRGINIA THROUGH THE REST OF THIS EVENING.
Special weather statement, Apr 5, 2:32 AM EDT, 1 hour 33 minutes before
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SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
325 AM EDT TUE APR 5 2011
MDZ004-009-VAZ042-052-053-501-502-050830-
FREDERICK MD-MONTGOMERY MD-NORTHERN FAUQUIER VA-LOUDOUN VA-
PRINCE WILLIAM/MANASSAS/MANASSAS PARK VA-SOUTHERN FAUQUIER VA-
FAIRFAX VA-
325 AM EDT TUE APR 5 2011
...STRONG THUNDERSTORMS TO AFFECT FREDERICK...MONTGOMERY...NORTHERN
FAUQUIER...LOUDOUN...PRINCE WILLIAM/MANASSAS/MANASSAS PARK...SOUTHERN
FAUQUIER AND FAIRFAX COUNTIES...
AT 325 AM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM 3 MILES NORTHWEST OF WATERFORD TO 3 MILES
NORTHEAST OF RECTORTOWN...MOVING NORTHEAST AT 45 MPH.
LOCATIONS IMPACTED INCLUDE POINT OF ROCKS...WOOLSEY...PAEONIAN
SPRINGS...HUGHESVILLE...DOUBS...ADAMSTOWN...CATHARPIN...ALDIE...SOUTH
RIDING AND OATLANDS.
STORM INTENSITY IS INCREASING...AND SEVERE WEATHER MAY DEVELOP
RAPIDLY. REMAIN ALERT...AND BE PREPARED TO TAKE ACTION IF WARNINGS
ARE ISSUED.
THIS STORM IS PRODUCING FREQUENT CLOUD TO GROUND LIGHTNING. MOVE
INDOORS IMMEDIATELY FOR YOUR SAFETY. IF YOU CAN HEAR THUNDER...YOU
ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.
HEAVY RAIN WITH THIS STORM MAY REDUCE VISIBILITIES TO BELOW ONE MILE
AND MAY CAUSE PONDING OF WATER ON ROADWAYS.
WIND GUSTS OF 40 TO 50 MPH AND SMALL HAIL CAN BE EXPECTED WITH THIS
STORM.
&&
LAT...LON 3940 7752 3933 7730 3919 7724 3897 7733
3872 7761 3894 7801 3906 7787 3928 7773
TIME...MOT...LOC 0725Z 245DEG 39KT 3924 7759 3897 7778
GMSSpecial weather statement, Apr 5, 3:56 AM EDT, 9 minutes before
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</html>The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 5, 2:32 AM EDT | Special Weather Statement | LWX | Nelson | 73 min |
| Apr 5, 2:43 AM EDT | Special Weather Statement | LWX | Page, Rappahannock, Warren | 62 min |
| Apr 5, 2:50 AM EDT | Special Weather Statement | LWX | Albemarle, Greene, Madison, Nelson, City of Charlottesville, City of Waynesboro | 55 min |
| Apr 5, 3:04 AM EDT | Severe Thunderstorm Warning | LWX | Albemarle, Clarke, Culpeper, Fauquier, Greene, Loudoun and 7 more | 56 min |
| Apr 5, 3:25 AM EDT | Special Weather Statement | LWX | Loudoun | 65 min |
| Apr 5, 3:56 AM EDT | Special Weather Statement | LWX | Arlington, Fairfax, King George, Prince William, Spotsylvania, Stafford and 6 more | 64 min |
| Apr 5, 4:29 AM EDT | Severe Thunderstorm Warning | LWX | Arlington, Fairfax, Prince William, Stafford, City of Alexandria, City of Falls Church | 51 min |
| Apr 5, 4:38 AM EDT | Severe Thunderstorm Warning | LWX | King George | 67 min |
| Apr 5, 4:59 AM EDT | Special Marine Warning | LWX | 31 min | |
| Apr 5, 5:03 AM EDT | Special Marine Warning | LWX | 60 min | |
| Apr 5, 5:15 AM EDT | Special Marine Warning | LWX | 25 min | |
| Apr 5, 5:18 AM EDT | Special Marine Warning | LWX | 44 min | |
| Apr 5, 8:14 AM EDT | Special Marine Warning | LWX | 2 hr | |
| Apr 5, 8:20 AM EDT | Special Marine Warning | LWX | 115 min | |
| Apr 5, 8:32 AM EDT | Special Weather Statement | LWX | Arlington, Fairfax, Prince William, City of Alexandria, City of Fairfax, City of Falls Church and 2 more | 58 min |
| Apr 5, 8:47 AM EDT | Gale Warning | LWX | 5 hr | |
| Apr 5, 8:47 AM EDT | Small Craft Advisory | LWX | 20 hr | |
| Apr 5, 9:21 AM EDT | Special Weather Statement | LWX | King George, Spotsylvania, Stafford, City of Fredericksburg | 54 min |
| Apr 5, 1:58 PM EDT | Small Craft Advisory | LWX | 28 hr | |
| Apr 5, 4:40 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Carroll, Harford, Howard, Montgomery and 2 more | 53 min |
| Apr 5, 4:46 AM EDT | Tornado Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 29 min |
| Apr 5, 4:55 AM EDT | Tornado Warning | LWX | Anne Arundel, Prince George's | 24 min |
| Apr 5, 4:57 AM EDT | Tornado Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 33 min |
| Apr 5, 5:05 AM EDT | Tornado Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's | 14 min |
| Apr 5, 5:22 AM EDT | Tornado Warning | LWX | Calvert, Saint Mary's | 23 min |
Nearby
Severe Thunderstorm Warnings in Virginia, 2011Every severe thunderstorm warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.