Alert archive / Virginia / Special Weather Statements in 2012

Special Weather Statement, NWS Blacksburg, VA

August 7, 2012Wythe County, Virginia

NWS Blacksburg, VA issued this special weather statement at Aug 7, 2012, 9:17 PM EDT for Wythe County, Virginia. It was in force for 28 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 7, 2012, 9:17 PM EDT (01:17 UTC)
Expired: Aug 7, 2012, 9:45 PM EDT
In force: 28 min
Issued by: NWS Blacksburg, VA

County Wythe County, VA

The radar

The Roanoke radar (KFCX), 90 km from the middle of the area, began a volume at 01:19 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.3 hours before the alert went out and 154 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1653 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 832 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 55 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 7, 7:26 PM EDT, 1 hour 51 minutes earlier.

Area forecast discussion, Aug 7, 7:26 PM EDT, 1 hour 51 minutes before

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Hazardous weather outlook, Aug 7, 3:31 PM EDT, 5 hours 46 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
331 PM EDT TUE AUG 7 2012

VAZ007-010-WVZ042-081945-
TAZEWELL-BLAND-MERCER-
331 PM EDT TUE AUG 7 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWEST VIRGINIA AND
SOUTHEAST WEST VIRGINIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

BANDS OF STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE AHEAD OF
A COLD FRONT FRIDAY AFTERNOON AND EVENING. VERY HEAVY RAINFALL MAY
ALSO OCCUR.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NCZ001>003-018>020-VAZ009-011>020-032-WVZ043>045-081945-
ASHE-ALLEGHANY NC-SURRY-WATAUGA-WILKES-YADKIN-SMYTH-GILES-WYTHE-
PULASKI-MONTGOMERY-GRAYSON-CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-
PATRICK-SUMMERS-MONROE-GREENBRIER-
331 PM EDT TUE AUG 7 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL NORTH
CAROLINA...NORTHWEST NORTH CAROLINA...SOUTHWEST VIRGINIA...WEST
CENTRAL VIRGINIA AND SOUTHEAST WEST VIRGINIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

POCKETS OF DENSE FOG ARE EXPECTED TO FORM AROUND MIDNIGHT...AND
CONTINUE THROUGH SUNRISE WEDNESDAY.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

BANDS OF STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE AHEAD OF
A COLD FRONT FRIDAY AFTERNOON AND EVENING. VERY HEAVY RAINFALL MAY
ALSO OCCUR.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NCZ004>006-VAZ022>024-033>035-043>047-058-059-081945-
STOKES-ROCKINGHAM-CASWELL-ROANOKE-BOTETOURT-ROCKBRIDGE-FRANKLIN-
BEDFORD-AMHERST-HENRY-PITTSYLVANIA-CAMPBELL-APPOMATTOX-BUCKINGHAM-
HALIFAX-CHARLOTTE-
331 PM EDT TUE AUG 7 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL NORTH
CAROLINA...CENTRAL VIRGINIA...SOUTH CENTRAL VIRGINIA AND WEST
CENTRAL VIRGINIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

ISOLATED POCKETS OF DENSE FOG ARE EXPECTED TO FORM LATE TONIGHT...AND
CONTINUE THROUGH SUNRISE WEDNESDAY.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

BANDS OF STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE AHEAD OF
A COLD FRONT FRIDAY AFTERNOON AND EVENING. VERY HEAVY RAINFALL MAY
ALSO OCCUR.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Aug 7, 5:17 PM EDT, 4 hours before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
517 PM EDT TUE AUG 7 2012

VAZ044-072145-
PITTSYLVANIA VA-
517 PM EDT TUE AUG 7 2012

...A STRONG THUNDERSTORM WILL AFFECT PITTSYLVANIA COUNTY...

AT 514 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 6 MILES NORTHEAST
OF GRETNA...MOVING SOUTH AT 5 MPH.

WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.

THIS STORM WILL BE NEAR CHALK LEVEL AROUND 545 PM.

LAT...LON 3685 7914 3684 7915 3683 7944 3706 7943
      3706 7941 3710 7940 3711 7924 3710 7923
      3711 7922 3711 7920 3706 7920 3706 7918

Special weather statement, Aug 7, 5:43 PM EDT, 3 hours 34 minutes before

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Special weather statement, Aug 7, 6:05 PM EDT, 3 hours 12 minutes before

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Special weather statement, Aug 7, 6:43 PM EDT, 2 hours 34 minutes before

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Special weather statement, Aug 7, 7:16 PM EDT, 2 hours 1 minute before

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Special weather statement, Aug 7, 9:17 PM EDT, 0 minutes before

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The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 7, 10:25 PM EDT	Special Weather Statement	RNK	Smyth	35 min
Aug 8, 1:27 PM EDT	Severe Thunderstorm Warning	RNK	Henry, Pittsylvania	63 min
Aug 8, 2:31 PM EDT	Special Weather Statement	RNK	Charlotte	29 min
Aug 8, 3:02 PM EDT	Special Weather Statement	RNK	Charlotte	28 min
Aug 8, 3:05 PM EDT	Special Weather Statement	RNK	Buckingham	25 min
Aug 8, 3:08 PM EDT	Areal Flood Advisory	RNK	Charlotte	27 min
Aug 8, 3:16 PM EDT	Areal Flood Advisory	RNK	Buckingham	62 min
Aug 8, 3:28 PM EDT	Flash Flood Warning	RNK	Charlotte	4 hr
Aug 8, 3:36 PM EDT	Special Weather Statement	RNK	Buckingham	54 min
Aug 8, 3:38 PM EDT	Flash Flood Warning	RNK	Buckingham	4 hr
Aug 8, 3:52 PM EDT	Special Weather Statement	RNK	Halifax	38 min
Aug 8, 4:18 PM EDT	Special Weather Statement	RNK	Buckingham	42 min
Aug 8, 4:33 PM EDT	Special Weather Statement	RNK	Halifax	42 min
Aug 8, 6:08 PM EDT	Special Weather Statement	RNK	Franklin	37 min
Aug 8, 6:26 PM EDT	Severe Thunderstorm Warning	RNK	Franklin, Henry	33 min
Aug 8, 7:10 PM EDT	Special Weather Statement	RNK	Franklin	35 min
Aug 7, 11:21 PM EDT	Special Weather Statement	RNK	Wilkes	39 min
Aug 8, 12:23 PM EDT	Special Weather Statement	RNK	Stokes	37 min
Aug 8, 12:29 PM EDT	Severe Thunderstorm Warning	RNK	Stokes, Surry	34 min
Aug 8, 1:01 PM EDT	Special Weather Statement	RNK	Rockingham	44 min
Aug 8, 1:57 PM EDT	Severe Thunderstorm Warning	RNK	Stokes, Surry, Yadkin	63 min
Aug 8, 2:29 PM EDT	Special Weather Statement	RNK	Rockingham	61 min
Aug 8, 2:39 PM EDT	Special Weather Statement	RNK	Rockingham	36 min

Nearby

Special Weather Statements in Virginia, 2012 Every special weather statement in 2012

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.