Alert archive / Virginia / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 143, NWS Wakefield, VA
NWS Wakefield, VA issued this severe thunderstorm warning at Aug 9, 2007, 5:07 PM EDT for Louisa County, Virginia. It was in force for 38 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 9, 2007, 5:07 PM EDT (21:07 UTC)
- Expired
- Aug 9, 2007, 5:45 PM EDT
- In force
- 38 min
- Issued by
- NWS Wakefield, VA
- Area
- Counties, with a storm outline in the text
County Louisa County, VA
The radar
The Sterling radar (KLWX), 118 km from the middle of the area, began a volume at 21:08 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
Washington/Dulle, VA (KIAD), launched 12:00Z, 9.1 hours before the alert went out and 119 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
- 547 J/kg
- Mixed-layer CIN
- -121 J/kg
- Mixed-layer LCL
- 1213 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 117 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.4
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 9, 3:35 PM EDT, 1 hour 32 minutes earlier.
Area forecast discussion, Aug 9, 3:35 PM EDT, 1 hour 32 minutes before
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Special weather statement, Aug 9, 3:07 PM EDT, 2 hours before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WAKEFIELD VA 307 PM EDT THU AUG 9 2007 VAZ084-092000- GLOUCESTER VA- 307 PM EDT THU AUG 9 2007 ...STRONG THUNDERSTORM MOVING OVER NORTHEASTERN GLOUCESTER COUNTY... AT 307 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER GLOUCESTER COURTHOUSE...MOVING SOUTHEAST AT 5 MPH. THE STRONG THUNDERSTORMS WILL BE NEAR HAYES...AND...WARE NECK AT 335 PM EDT...WHITE MARSH AT 340 PM EDT...SELDEN...AND...BEULAH AT 345 PM EDT...ORDINARY AT 350 PM EDT...NAXERA...AND...GLASS AT 400 PM EDT. 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. RAINFALL RATES OF 2 TO 3 INCHES PER HOUR WILL BE POSSIBLE. IF YOU HEAR THUNDER...YOU AR 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. WAMSLEY
Special weather statement, Aug 9, 3:26 PM EDT, 1 hour 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WAKEFIELD VA 326 PM EDT THU AUG 9 2007 VAZ096-092030- SUFFOLK VA- 326 PM EDT THU AUG 9 2007 ...STRONG THUNDERSTORMS MOVING SLOWLY OVER SOUTHERN SUFFOLK... AT 326 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM FROM 10 MILES SOUTHWEST OF HOLLAND TO 11 MILES SOUTHEAST OF HOLLAND...OR FROM 7 MILES SOUTH OF FRANKLIN TO 9 MILES NORTH OF SUNBURY...MOVING NORTHEAST AT 10 MPH. THE STRONG THUNDERSTORMS WILL BE NEAR HOLLAND AROUND 405 PM EDT... 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. RAINFALL RATES OF 2 TO 3 INCHES PER HOUR WILL BE POSSIBLE. IN ADDITION...WIND GUSTS TO 40 MPH WILL BE POSSIBLE. WAMSLEY
Special weather statement, Aug 9, 3:33 PM EDT, 1 hour 34 minutes before
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SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WAKEFIELD VA 414 PM EDT THU AUG 9 2007 NCZ012>017-030>032-VAZ087-092>098-092115- BERTIE NC-CAMDEN NC-CHESAPEAKE VA-CHOWAN NC-GATES NC-GREENSVILLE VA-HERTFORD NC-ISLE OF WIGHT VA-NEWPORT NEWS/HAMPTON VA-NORFOLK/PORTSMOUTH VA-NORTHAMPTON NC-PASQUOTANK NC-PERQUIMANS NC-SOUTHAMPTON VA-SUFFOLK VA-VIRGINIA BEACH VA-WESTERN CURRITUCK NC- 414 PM EDT THU AUG 9 2007 ...STRONG THUNDERSTORMS MOVING THROUGH SOUTHEAST VIRGINIA AND NORTHEAST NORTH CAROLINA... AT 414 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM FROM 7 MILES NORTHWEST OF CHURCHLAND TO BOYKINS...MOVING EAST AT 10 MPH. THE STRONG THUNDERSTORMS WILL BE NEAR AULANDER AROUND 420 PM EDT... MURFREESBORO AROUND 435 PM EDT... FRANKLIN AROUND 445 PM EDT... AHOSKIE AROUND 455 PM EDT... CHURCHLAND AROUND 515 PM EDT... WIND GUSTS TO 40 MPH...SMALL HAIL AND FREQUENT CLOUD TO GROUND LIGHTNING ARE EXPECTED IN THE PATH OF THESE STORMS. RAINFALL RATES OF 2 TO 3 INCHES PER HOUR WILL CAUSE PONDING OF WATER ON ROADWAYS...AND POSSIBLE LOCALIZED FLOODING IN LOW LYING AND FLOOD PRONE AREAS. IF YOU CAN 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. SMF
Special weather statement, Aug 9, 4:35 PM EDT, 32 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 9, 12:36 PM EDT | Excessive Heat Warning | AKQ | Southampton, City of Chesapeake, City of Franklin | 7 hr |
| Aug 9, 2:38 PM EDT | Areal Flood Advisory | AKQ | City of Chesapeake | 3 hr |
| Aug 9, 3:47 PM EDT | Heat Advisory | AKQ | Accomack, Amelia, Brunswick, Caroline, Charles City, Cumberland and 30 more | 24 hr |
| Aug 9, 3:55 PM EDT | Severe Thunderstorm Warning | AKQ | Caroline, Essex | 50 min |
| Aug 9, 4:47 PM EDT | Severe Thunderstorm Warning | AKQ | Caroline, King William | 43 min |
| Aug 9, 5:22 PM EDT | Marine Weather Statement | AKQ | 53 min | |
| Aug 9, 5:34 PM EDT | Marine Weather Statement | AKQ | 116 min | |
| Aug 9, 4:27 PM EDT | Severe Thunderstorm Warning | AKQ | Camden | 48 min |
Nearby
Severe Thunderstorm Warnings in Virginia, 2007Every severe thunderstorm warning in 2007
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.