Alert archive / Virginia / Special Weather Statements in 2009
Special Weather Statement, NWS Blacksburg, VA
NWS Blacksburg, VA issued this special weather statement at Aug 1, 2009, 10:46 PM EDT for Campbell County, Virginia. It was in force for 59 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
- Aug 1, 2009, 10:46 PM EDT (02:46 UTC)
- Expired
- Aug 1, 2009, 11:45 PM EDT
- In force
- 59 min
- Issued by
- NWS Blacksburg, VA
County Campbell County, VA
The radar
The Roanoke radar (KFCX), 114 km from the middle of the area, began a volume at 02:48 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, 2.8 hours before the alert went out and 46 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
- 1095 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 888 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.3
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 Aug 1, 10:09 PM EDT, 37 minutes earlier.
Area forecast discussion, Aug 1, 10:09 PM EDT, 37 minutes before
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</html>Hazardous weather outlook, Aug 1, 3:06 PM EDT, 7 hours 40 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE BLACKSBURG VA 306 PM EDT SAT AUG 1 2009 VAZ007-009>011-018>020-WVZ042>045-021915- TAZEWELL-SMYTH-BLAND-GILES-CRAIG-ALLEGHANY VA-BATH-MERCER-SUMMERS- MONROE-GREENBRIER- 306 PM EDT SAT AUG 1 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWEST VIRGINIA...WEST CENTRAL VIRGINIA AND SOUTHEAST WEST VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. NCZ001>006-018>020-VAZ012>017-022>024-032>035-043>047-058-059-021915- ASHE-ALLEGHANY NC-SURRY-STOKES-ROCKINGHAM-CASWELL-WATAUGA-WILKES- YADKIN-WYTHE-PULASKI-MONTGOMERY-GRAYSON-CARROLL-FLOYD-ROANOKE- BOTETOURT-ROCKBRIDGE-PATRICK-FRANKLIN-BEDFORD-AMHERST-HENRY- PITTSYLVANIA-CAMPBELL-APPOMATTOX-BUCKINGHAM-HALIFAX-CHARLOTTE- 306 PM EDT SAT AUG 1 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL NORTH CAROLINA...NORTHWEST NORTH CAROLINA...CENTRAL VIRGINIA...SOUTH CENTRAL VIRGINIA...SOUTHWEST VIRGINIA AND WEST CENTRAL VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. HOWEVER AN ISOLATED STRONG TO SEVERE THUNDERSTORM WILL BE POSSIBLE THROUGH EARLY THIS EVENING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
In the hours before
Local storm report, Aug 1, 6:57 PM EDT, 3 hours 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
657 PM EDT SAT AUG 01 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0650 PM FLASH FLOOD WEST JEFFERSON 36.40N 81.50W
08/01/2009 ASHE NC LAW ENFORCEMENT
POWERLINE WASHED OVER AND OUT OF THE GROUND BY HEAVY
RAIN.
&&
TWSpecial weather statement, Aug 1, 8:10 PM EDT, 2 hours 36 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
810 PM EDT SAT AUG 1 2009
NCZ002-003-019-VAZ016-032-020100-
ALLEGHANY NC-CARROLL VA-PATRICK VA-SURRY NC-WILKES NC-
810 PM EDT SAT AUG 1 2009
...THUNDERSTORMS WITH VERY HEAVY RAIN WILL AFFECT PORTIONS OF
ALLEGHANY...CARROLL...PATRICK...SURRY AND WILKES COUNTIES...
AT 804 PM EDT...A LINE OF THUNDERSTORMS WITH MODERATE TO HEAVY RAIN
REMAINED NEARLY STATIONARY FROM THE FOOTHILLS OF WILKES COUNTY NORTH
CAROLINA TO ALONG THE SPINE OF THE BLUE RIDGE SOUTH AND EAST OF
HILLSVILLE VIRGINIA.
HEAVY RAIN WILL GRADUALLY DIMINISH AS THE EVENING PROGRESSES...BUT
RUNOFF WILL CAUSE WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE
DITCHES AND SMALL STREAMS.
PLEASE USE CAUTION AND AVOID DRIVING THROUGH WATER COVERED ROADS OR
IN AREAS WHERE WATER HAS PONDED IN LOW LYING AREAS.
LAT...LON 3611 8154 3657 8093 3656 8084 3661 8088
3676 8068 3667 8035 3602 8135
EXPERIMENTAL
WERTLocal storm report, Aug 1, 8:45 PM EDT, 2 hours 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
845 PM EDT SAT AUG 01 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0715 PM HAIL 1 NE GRETNA 36.96N 79.35W
08/01/2009 E0.75 INCH PITTSYLVANIA VA PUBLIC
&&
TWSpecial weather statement, Aug 1, 9:25 PM EDT, 1 hour 21 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
925 PM EDT SAT AUG 1 2009
NCZ019-020215-
WILKES NC-
925 PM EDT SAT AUG 1 2009
...STRONG THUNDERSTORMS WILL AFFECT WILKES COUNTY...
AT 919 PM EDT...A CLUSTER STRONG THUNDERSTORMS WAS LOCATED OVER THE
NORTHEAST HALF OF WILKES COUNTY...MOVING EAST AT 5 MPH.
WIND GUSTS TO 30 MPH ARE POSSIBLE WITH THESE STORMS. VERY HEAVY RAIN
WILL FALL FROM THESE STORMS...AND WILL CAUSE WATER TO POND ON ROADS
AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.
AREAS THAT WILL BE AFFECTED BY THESE STORMS INCLUDE...NORTH
WILKESBORO...MULBERRY...DOCKERY...AND TRAPHILL.
LAT...LON 3629 8123 3643 8108 3641 8103 3637 8102
3637 8098 3630 8087 3619 8087 3611 8110
EXPERIMENTALLocal storm report, Aug 1, 10:19 PM EDT, 27 minutes before
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</html>Special weather statement, Aug 1, 10:46 PM EDT, 0 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 |
|---|---|---|---|---|
| Aug 2, 12:40 AM EDT | Flash Flood Watch | RNK | Alleghany, Bath, Bland, Carroll, Craig, Floyd and 11 more | 15 hr |
| Aug 2, 8:19 AM EDT | Special Weather Statement | RNK | Alleghany, Bath, Bland, Carroll, Craig, Giles and 6 more | 56 min |
| Aug 2, 9:03 AM EDT | Special Weather Statement | RNK | Alleghany, City of Covington | 57 min |
| Aug 1, 8:10 PM EDT | Special Weather Statement | RNK | Wilkes | 50 min |
| Aug 1, 9:25 PM EDT | Special Weather Statement | RNK | Wilkes | 50 min |
| Aug 1, 10:07 PM EDT | Flash Flood Warning | RNK | Surry, Wilkes, Yadkin | 4 hr |
Nearby
Special Weather Statements in Virginia, 2009Every special weather statement in 2009
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.