Alert archive / Virginia / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 50, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at May 14, 2010, 8:21 PM EDT for Buckingham County, Virginia. It was in force for 39 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
- May 14, 2010, 8:21 PM EDT (00:21 UTC)
- Expired
- May 14, 2010, 9:00 PM EDT
- In force
- 39 min
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
County Buckingham County, VA
The radar
The Norfolk radar (KAKQ), 150 km from the middle of the area, began a volume at 00:23 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
Roanoke, VA (KRNK), launched 00:00Z, 0.4 hours before the alert went out and 95 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
- 6 J/kg
- Mixed-layer CIN
- -129 J/kg
- Mixed-layer LCL
- 2037 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- 7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Blacksburg, VA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 14, 7:48 PM EDT, 33 minutes earlier.
Area forecast discussion, May 14, 7:48 PM EDT, 33 minutes before
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</html>Hazardous weather outlook, May 14, 6:02 PM EDT, 2 hours 19 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BLACKSBURG VA 602 PM EDT FRI MAY 14 2010 NCZ001>006-018>020-VAZ043>047-058-059-151000- ASHE-ALLEGHANY NC-SURRY-STOKES-ROCKINGHAM-CASWELL-WATAUGA-WILKES- YADKIN-HENRY-PITTSYLVANIA-CAMPBELL-APPOMATTOX-BUCKINGHAM-HALIFAX- CHARLOTTE- 602 PM EDT FRI MAY 14 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL NORTH CAROLINA...NORTHWEST NORTH CAROLINA...CENTRAL VIRGINIA AND SOUTH CENTRAL VIRGINIA. .DAY ONE...TONIGHT. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS EVENING. DAMAGING WINDS AND LARGE HAIL ARE THE PRIMARY THREATS FROM ANY STORMS THAT BECOME SEVERE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. MONDAY AND TUESDAY THERE IS A POTENTIAL FOR HEAVY RAIN RESULTING FROM SCATTERED TO NUMEROUS THUNDERSTORMS. .SPOTTER INFORMATION STATEMENT... SKYWARN AND SPOTTER INFORMATION MAY BE NEEDED LATER THIS EVENING. VAZ007-009>020-022>024-032>035-WVZ042>045-151000- TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-MONTGOMERY-GRAYSON-CARROLL- FLOYD-CRAIG-ALLEGHANY VA-BATH-ROANOKE-BOTETOURT-ROCKBRIDGE-PATRICK- FRANKLIN-BEDFORD-AMHERST-MERCER-SUMMERS-MONROE-GREENBRIER- 602 PM EDT FRI MAY 14 2010 ...SEVERE THUNDERSTORM WATCH 173 IN EFFECT UNTIL 9 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL VIRGINIA...SOUTH CENTRAL VIRGINIA...SOUTHWEST VIRGINIA...WEST CENTRAL VIRGINIA AND SOUTHEAST WEST VIRGINIA. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. SEVERE THUNDERSTORM WATCH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. ACTIVE WEATHER MONDAY AND TUESDAY WITH POTENTIAL FOR HEAVY RAIN RESULTING FROM SCATTERED TO NUMEROUS THUNDERSTORMS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS. THE SKYWARN NETWORK HAS BEEN ACTIVATED.
In the hours before
Special weather statement, May 14, 7:19 PM EDT, 1 hour 2 minutes before
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</html>Special weather statement, May 14, 7:46 PM EDT, 35 minutes before
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</html>Local storm report, May 14, 7:58 PM EDT, 23 minutes before
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</html>Special weather statement, May 14, 8:11 PM EDT, 10 minutes before
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</html>Special weather statement, May 14, 8:19 PM EDT, 2 minutes before
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</html>The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 14, 8:11 PM EDT | Special Weather Statement | RNK | Buckingham | 49 min |
| May 14, 8:19 PM EDT | Special Weather Statement | RNK | Alleghany, Bath, City of Covington | 26 min |
| May 14, 8:23 PM EDT | Severe Thunderstorm Warning | RNK | Amherst | 23 min |
| May 14, 8:35 PM EDT | Severe Thunderstorm Warning | RNK | Floyd, Franklin | 38 min |
| May 14, 8:42 PM EDT | Severe Thunderstorm Warning | RNK | Floyd, Franklin, Patrick | 31 min |
| May 14, 9:16 PM EDT | Special Weather Statement | RNK | Cumberland | 14 min |
| May 14, 9:41 PM EDT | Severe Thunderstorm Warning | RNK | Franklin, Henry, Patrick, Pittsylvania | 41 min |
| May 14, 10:00 PM EDT | Special Weather Statement | RNK | Henry, City of Martinsville | 60 min |
| May 14, 10:20 PM EDT | Severe Thunderstorm Warning | RNK | Charlotte, Halifax, Pittsylvania | 55 min |
| May 14, 10:33 PM EDT | Special Weather Statement | RNK | Halifax | 42 min |
| May 15, 7:12 PM EDT | Special Weather Statement | RNK | Carroll, Floyd, Franklin, Grayson, City of Galax | 63 min |
| May 15, 7:24 PM EDT | Severe Thunderstorm Warning | RNK | Carroll, Floyd, Patrick | 66 min |
| May 15, 7:36 PM EDT | Severe Thunderstorm Warning | RNK | Carroll, Grayson, City of Galax | 42 min |
| May 15, 7:49 PM EDT | Severe Thunderstorm Warning | RNK | Franklin, Henry, Patrick | 56 min |
| May 14, 8:38 PM EDT | Special Weather Statement | RNK | Ashe, Watauga | 37 min |
| May 14, 9:12 PM EDT | Special Weather Statement | RNK | Surry | 33 min |
| May 14, 11:05 PM EDT | Special Weather Statement | RNK | Caswell | 40 min |
| May 15, 6:08 PM EDT | Special Weather Statement | RNK | Watauga | 37 min |
| May 15, 6:23 PM EDT | Severe Thunderstorm Warning | RNK | Surry, Wilkes | 72 min |
Nearby
Severe Thunderstorm Warnings in Virginia, 2010Every severe thunderstorm warning in 2010
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.