Alert archive / Maryland / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 206, NWS Wakefield, VA
NWS Wakefield, VA issued this severe thunderstorm warning at Aug 19, 2011, 3:16 PM EDT for Wicomico County, Maryland. It was in force for 29 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
- Aug 19, 2011, 3:16 PM EDT (19:16 UTC)
- Expired
- Aug 19, 2011, 3:45 PM EDT
- In force
- 29 min
- Issued by
- NWS Wakefield, VA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Wicomico County, MD
The radar
The Dover AFB radar (KDOX), 53 km from the middle of the area, began a volume at 19:16 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 nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 7.3 hours before the alert went out and 53 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 766 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 1132 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
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 Wakefield, VA wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 19, 2:47 PM EDT, 29 minutes earlier.
Area forecast discussion, Aug 19, 2:47 PM EDT, 29 minutes before
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</html>Hazardous weather outlook, Aug 19, 11:59 AM EDT, 3 hours 17 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WAKEFIELD VA 1159 AM EDT FRI AUG 19 2011 VAZ089-091>097-099-100-201600- SURRY-YORK-SOUTHAMPTON-ISLE OF WIGHT-NEWPORT NEWS/HAMPTON- NORFOLK/PORTSMOUTH-SUFFOLK-CHESAPEAKE-ACCOMACK-NORTHAMPTON VA- 1159 AM EDT FRI AUG 19 2011 ...AIR QUALITY ALERT IN EFFECT UNTIL 8 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR INTERIOR SOUTHEAST VIRGINIA...SOUTH HAMPTON ROADS VIRGINIA...THE EASTERN SHORE OF VIRGINIA AND THE PENINSULA OF SOUTHEAST VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. AIR QUALITY ALERT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. MDZ024-025-NCZ012>017-030>032-102-VAZ060-065>067-079>081-087-088-098- 201600- INLAND WORCESTER-MARYLAND BEACHES-NORTHAMPTON NC-HERTFORD-GATES- PASQUOTANK-CAMDEN-INLAND CURRITUCK-BERTIE-CHOWAN-PERQUIMANS- OUTER BANKS CURRITUCK-PRINCE EDWARD-MECKLENBURG-LUNENBURG-NOTTOWAY- BRUNSWICK-DINWIDDIE-PRINCE GEORGE-GREENSVILLE-SUSSEX-VIRGINIA BEACH- 1159 AM EDT FRI AUG 19 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE LOWER EASTERN SHORE OF MARYLAND...COASTAL NORTHEAST NORTH CAROLINA...INTERIOR NORTHEAST NORTH CAROLINA...THE NORTHERN OUTER BANKS OF NORTH CAROLINA...CENTRAL VIRGINIA...INTERIOR SOUTHEAST VIRGINIA...SOUTH CENTRAL VIRGINIA...SOUTH HAMPTON ROADS VIRGINIA AND THE PIEDMONT OF CENTRAL VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. ANZ630>634-650-652-654-656-658-201600- CHESAPEAKE BAY FROM SMITH POINT TO WINDMILL POINT VA- CHESAPEAKE BAY FROM WINDMILL POINT TO NEW POINT COMFORT VA- CHESAPEAKE BAY FROM NEW POINT COMFORT TO LITTLE CREEK VA- CURRITUCK SOUND- CHESAPEAKE BAY FROM LITTLE CREEK TO CAPE HENRY VA...INCLUDING THE CHESAPEAKE BAY BRIDGE TUNNEL- COASTAL WATERS FROM FENWICK ISLAND DE TO CHINCOTEAGUE VA OUT TO 20 NM- COASTAL WATERS FROM CHINCOTEAGUE TO PARRAMORE ISLAND VA OUT TO 20 NM- COASTAL WATERS FROM PARRAMORE ISLAND TO CAPE CHARLES LIGHT VA OUT TO 20 NM- COASTAL WATERS FROM CAPE CHARLES LIGHT VA TO NC VA BORDER OUT TO 20 NM- COASTAL WATERS FROM NC VA BORDER TO CURRITUCK BEACH LIGHT NC OUT TO 20 NM- 1159 AM EDT FRI AUG 19 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE CENTRAL CHESAPEAKE BAY...THE SOUTHERN CHESAPEAKE BAY...THE MID ATLANTIC COASTAL WATERS AND CURRITUCK SOUND. .DAY ONE...THIS AFTERNOON AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. VAZ072>078-082>086-090-201600- KING WILLIAM-KING AND QUEEN-ESSEX-WESTMORELAND-RICHMOND- NORTHUMBERLAND-LANCASTER-CHARLES CITY-NEW KENT-GLOUCESTER-MIDDLESEX- MATHEWS-JAMES CITY- 1159 AM EDT FRI AUG 19 2011 ...AIR QUALITY ALERT IN EFFECT UNTIL 8 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL VIRGINIA...THE MIDDLE PENINSULA OF VIRGINIA...THE NORTHERN NECK OF VIRGINIA AND THE PENINSULA OF SOUTHEAST VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. AIR QUALITY ALERT. IN ADDITION...SCATTERED THUNDERSTORMS ARE EXPECTED TODAY...MAINLY BETWEEN 3 PM AND 10 PM. A FEW STRONG TO SEVERE STORMS WILL BE POSSIBLE...WITH THE MAIN THREAT BEING DAMAGING WINDS AND LARGE HAIL. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. MDZ021>023-VAZ048-049-061>064-068>071-201600- DORCHESTER-WICOMICO-SOMERSET-FLUVANNA-LOUISA-CUMBERLAND-GOOCHLAND- HANOVER-CAROLINE-AMELIA-POWHATAN-CHESTERFIELD-HENRICO- 1159 AM EDT FRI AUG 19 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE LOWER EASTERN SHORE OF MARYLAND...CENTRAL VIRGINIA AND THE PIEDMONT OF CENTRAL VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. SCATTERED THUNDERSTORMS ARE EXPECTED TODAY...MAINLY BETWEEN 3 PM AND 10 PM. A FEW STRONG TO SEVERE STORMS WILL BE POSSIBLE...WITH THE MAIN THREAT BEING DAMAGING WINDS AND LARGE HAIL. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. BROWN
In the hours before
Special weather statement, Aug 19, 9:59 AM EDT, 5 hours 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WAKEFIELD VA 959 AM EDT FRI AUG 19 2011 VAZ089>091-093>097-191600- SURRY-JAMES CITY-YORK-ISLE OF WIGHT-NEWPORT NEWS/HAMPTON- NORFOLK/PORTSMOUTH-SUFFOLK-CHESAPEAKE- INCLUDING THE CITIES OF...WILLIAMSBURG...POQUOSON... NEWPORT NEWS...HAMPTON 959 AM EDT FRI AUG 19 2011 VISIBILITY REDUCTIONS DUE TO SMOKE FROM THE GREAT DISMAL SWAMP FIRE WILL CONTINUE THROUGH NOON...FROM THE CITY OF SUFFOLK...TO NORFOLK...NORTHWARD THROUGH ISLE OF WIGHT AND EASTERN SURRY COUNTIES...AND ONTO THE PENINSULA. VISIBILITIES ARE SLOWLY IMPROVING...AND WILL GENERALLY RANGE FROM 2 TO 4 MILES OVER MOST OF THE REGION. A FEW LOCATIONS IN CLOSE PROXIMITY TO THE FIRE MAY CONTINUE TO EXPERIENCE VISIBILITIES LESS THAN ONE MILE. MOTORISTS ARE ADVISED TO DRIVE SLOWLY AND USE CAUTION IN THE AREAS AFFECTED BY SMOKE. CONDITIONS ARE EXPECTED TO CONTINUE TO IMPROVE THROUGH THE AFTERNOON HOURS...AS THE SMOKE LIFTS. BROWN
Special weather statement, Aug 19, 2:09 PM EDT, 1 hour 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WAKEFIELD VA
209 PM EDT FRI AUG 19 2011
MDZ021-022-191900-
DORCHESTER MD-WICOMICO MD-
209 PM EDT FRI AUG 19 2011
...STRONG THUNDERSTORM DEVELOPING ACROSS NORTHERN WICOMICO COUNTY...
AT 206 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER HEBRON...MOVING SOUTH AT 5 MPH. THE STRONG
THUNDERSTORMS WILL BE NEAR MARDELA SPRINGS AT 225 PM EDT...HEBRON AT
300 PM EDT.
WIND GUSTS TO 40 MPH AND SMALL HAIL WILL BE POSSIBLE WITH THIS STORM.
EXPECT FREQUENT CLOUD TO GROUND LIGHTNING AND HEAVY RAINFALL WITH
THESE STORMS AS WELL. PONDING OF WATER ON ROADWAYS AND FLOODING OF
LOW LYING AND FLOOD PRONE AREAS IS ALSO POSSIBLE. IF YOU HEAR
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE INTO
A SAFE SHELTER BEFORE THESE STORMS REACH YOUR AREA. REMAIN INDOORS
UNTIL THE STORMS HAVE PASSED.
LAT...LON 3854 7569 3846 7568 3846 7559 3829 7563
3841 7585 3855 7573
LBROWNSpecial weather statement, Aug 19, 2:42 PM EDT, 34 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WAKEFIELD VA
242 PM EDT FRI AUG 19 2011
VAZ063-071>078-082-083-085-090-191945-
CHARLES CITY VA-ESSEX VA-HANOVER VA-HENRICO VA-JAMES CITY VA-KING AND
QUEEN VA-KING WILLIAM VA-LANCASTER VA-MIDDLESEX VA-NEW KENT
VA-NORTHUMBERLAND VA-RICHMOND VA-WESTMORELAND VA-
242 PM EDT FRI AUG 19 2011
...SCATTERED STRONG THUNDERSTORMS DEVELOPING ACROSS PORTIONS OF
CENTRAL AND EASTERN VIRGINIA...
AT 239 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF THUNDERSTORMS FROM 8 MILES NORTHEAST OF KINSALE TO
RUTHVILLE...OR FROM 8 MILES NORTHEAST OF KINSALE TO CHARLES
CITY...MOVING NORTHEAST AT 5 MPH. THE STORMS ARE VERY SLOW MOVING
AND SCATTERED IN NATURE...AND WILL AFFECT AREAS FROM
WILLIAMSBURG...NORTH NORTHEAST TO THE NORTHERN NECK TROUGH 4 PM.
WIND GUSTS TO 40 MPH WILL BE POSSIBLE WITH THE STRONGEST STORMS.
EXPECT FREQUENT CLOUD TO GROUND LIGHTNING AND HEAVY RAINFALL WITH
THESE STORMS. PONDING OF WATER ON ROADWAYS AND FLOODING OF LOW LYING
AND FLOOD PRONE AREAS IS ALSO POSSIBLE. IF YOU HEAR THUNDER...YOU ARE
CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE INTO A SAFE SHELTER
BEFORE THESE STORMS REACH YOUR AREA. REMAIN INDOORS UNTIL THE STORMS
HAVE PASSED.
LAT...LON 3816 7660 3815 7659 3811 7659 3808 7653
3803 7651 3802 7646 3796 7639 3727 7695
3753 7730 3817 7668
LBROWNLocal storm report, Aug 19, 3:00 PM EDT, 16 minutes before
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</html>The office that day
Everything else NWS Wakefield, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 2:42 PM EDT | Special Weather Statement | AKQ | Charles City, King and Queen, King William, New Kent, Richmond | 63 min |
| Aug 19, 3:48 PM EDT | Special Weather Statement | AKQ | Lancaster | 57 min |
| Aug 19, 6:58 PM EDT | Special Weather Statement | AKQ | Prince George, Sussex, City of Petersburg | 32 min |
| Aug 19, 7:39 PM EDT | Special Weather Statement | AKQ | City of Emporia | 51 min |
| Aug 19, 2:09 PM EDT | Special Weather Statement | AKQ | Wicomico | 51 min |
| Aug 19, 2:39 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico | 36 min |
| Aug 19, 3:34 PM EDT | Special Weather Statement | AKQ | Wicomico | 26 min |
| Aug 19, 4:02 PM EDT | Special Weather Statement | AKQ | Wicomico, Worcester | 43 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.