Alert archive / Virginia / Special Weather Statements in 2011
Special Weather Statement, NWS Blacksburg, VA
NWS Blacksburg, VA issued this special weather statement at Jun 20, 2011, 3:43 PM EDT for 5 counties in Virginia. It was in force for 92 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 20, 2011, 3:43 PM EDT (19:43 UTC)
- Expired
- Jun 20, 2011, 5:15 PM EDT
- In force
- 92 min
- Issued by
- NWS Blacksburg, VA
Counties Appomattox County, VA, Campbell County, VA, Charlotte County, VA, City of Lynchburg, VA, Halifax County, VA
The radar
The Roanoke radar (KFCX), 130 km from the middle of the area, began a volume at 19:44 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 12:00Z, 7.7 hours before the alert went out and 62 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
- 20 J/kg
- Mixed-layer CIN
- -183 J/kg
- Mixed-layer LCL
- 724 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 148 m²/s²
- 0-3 km storm-relative helicity
- 210 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Jun 20, 3:20 PM EDT, 23 minutes earlier.
Area forecast discussion, Jun 20, 3:20 PM EDT, 23 minutes before
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HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BLACKSBURG VA 1045 AM EDT MON JUN 20 2011 VAZ020-024-035-045>047-058-059-211445- BATH-ROCKBRIDGE-AMHERST-CAMPBELL-APPOMATTOX-BUCKINGHAM-HALIFAX- CHARLOTTE- 1045 AM EDT MON JUN 20 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL VIRGINIA...SOUTH CENTRAL VIRGINIA AND WEST CENTRAL VIRGINIA. .DAY ONE...TODAY AND TONIGHT. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. NCZ001>006-018>020-VAZ007-009>019-022-023-032>034-043-044-WVZ042>045- 211445- ASHE-ALLEGHANY NC-SURRY-STOKES-ROCKINGHAM-CASWELL-WATAUGA-WILKES- YADKIN-TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-MONTGOMERY-GRAYSON- CARROLL-FLOYD-CRAIG-ALLEGHANY VA-ROANOKE-BOTETOURT-PATRICK-FRANKLIN- BEDFORD-HENRY-PITTSYLVANIA-MERCER-SUMMERS-MONROE-GREENBRIER- 1045 AM EDT MON JUN 20 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL NORTH CAROLINA...NORTHWEST NORTH CAROLINA...SOUTH CENTRAL VIRGINIA...SOUTHWEST VIRGINIA...WEST CENTRAL VIRGINIA AND SOUTHEAST WEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING. THE PRIMARY RISKS FROM ANY SEVERE STORMS ARE DAMAGING WINDS AND LARGE HAIL. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON.
In the hours before
Special weather statement, Jun 20, 12:58 PM EDT, 2 hours 45 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BLACKSBURG VA 1258 PM EDT MON JUN 20 2011 NCZ001-018-VAZ015-201900- ASHE-WATAUGA-GRAYSON- INCLUDING THE CITIES OF...WEST JEFFERSON...BOONE...INDEPENDENCE... WHITETOP...TROUTDALE...VOLNEY 1258 PM EDT MON JUN 20 2011 ...STRONG GUSTY WINDS EARLY THIS AFTERNOON... STRONGER WIND GUSTS UP TO 40 TO 50 MPH WILL BE POSSIBLE UNTIL MID AFTERNOON. THESE GUSTS COULD KNOCK BRANCHES OUT OF TREES...BLOW LAWN FURNITURE AROUND...AND DOWN SMALLER OR DEAD TREES. THESE GUSTS ARE MORE LIKELY ALONG THE HIGHER RIDGES OR BETWEEN GAPS IN MOUNTAINS FACING NORTHWEST.
Special weather statement, Jun 20, 2:09 PM EDT, 1 hour 34 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
209 PM EDT MON JUN 20 2011
VAZ033-043-044-201900-
FRANKLIN VA-HENRY VA-PITTSYLVANIA VA-
209 PM EDT MON JUN 20 2011
...A CLUSTER OF STRONG THUNDERSTORMS WILL AFFECT PORTIONS OF
FRANKLIN...HENRY AND PITTSYLVANIA COUNTIES...
AT 206 PM EDT...A CLUSTER OF STRONG THUNDERSTORMS WERE LOCATED FROM
NEAR SONTAG TO MOUNTAIN VALLEY...MOVING SOUTHEAST AT 20 MPH.
WIND GUSTS TO 50 MPH AND HAIL UP TO DIME SIZE ARE POSSIBLE WITH THIS
STORMS. EXPECT FREQUENT CLOUD TO GROUND LIGHTNING AND LOCALLY HEAVY
RAINFALL AS WELL. DO NOT STAY IN THE OPEN OR SEEK SHELTER UNDER
TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A THUNDERSTORM
APPROACHES.
THE STORMS WILL BE NEAR CALLANDS AROUND 215 PM...SANDY RIVER AROUND
220 PM...SWANSONVILLE AROUND 230 PM...CASCADE AROUND 240 PM...CHATHAM
AROUND 255 PM AND DRY FORK AROUND 300 PM.
LAT...LON 3676 7981 3700 7985 3700 7970 3676 7917
3654 7922 3654 7972
WERTSpecial weather statement, Jun 20, 2:42 PM EDT, 1 hour 1 minute 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 |
|---|---|---|---|---|
| Jun 19, 11:09 PM EDT | Special Weather Statement | RNK | Halifax | 36 min |
| Jun 20, 2:09 PM EDT | Special Weather Statement | RNK | Pittsylvania, City of Danville | 51 min |
| Jun 20, 2:42 PM EDT | Special Weather Statement | RNK | Bedford, Botetourt | 63 min |
| Jun 20, 2:57 PM EDT | Special Weather Statement | RNK | Carroll, City of Galax | 63 min |
| Jun 20, 3:58 PM EDT | Special Weather Statement | RNK | Bath, Rockbridge, City of Lexington | 62 min |
| Jun 20, 3:08 PM EDT | Special Weather Statement | RNK | Caswell | 52 min |
Nearby
Special Weather Statements in Virginia, 2011Every special weather statement 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.