Alert archive / Virginia / Special Weather Statements in 2012

Special Weather Statement, NWS Blacksburg, VA

May 29, 2012Tazewell County, Virginia

NWS Blacksburg, VA issued this special weather statement at May 29, 2012, 3:34 PM EDT for Tazewell County, Virginia. It was in force for 26 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: May 29, 2012, 3:34 PM EDT (19:34 UTC)
Expired: May 29, 2012, 4:00 PM EDT
In force: 26 min
Issued by: NWS Blacksburg, VA

County Tazewell County, VA

The radar

The Roanoke radar (KFCX), 119 km from the middle of the area, began a volume at 19:36 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 12:00Z, 7.6 hours before the alert went out and 188 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: 329 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 560 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -46 m²/s²
0-3 km storm-relative helicity: -33 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 May 29, 1:47 PM EDT, 1 hour 47 minutes earlier.

Area forecast discussion, May 29, 1:47 PM EDT, 1 hour 47 minutes before

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Hazardous weather outlook, May 29, 3:55 AM EDT, 11 hours 39 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
355 AM EDT TUE MAY 29 2012

NCZ001>006-018>020-VAZ007-009>020-022>024-032>035-043>047-058-059-
WVZ042>045-300800-
ASHE-ALLEGHANY NC-SURRY-STOKES-ROCKINGHAM-CASWELL-WATAUGA-WILKES-
YADKIN-TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-MONTGOMERY-GRAYSON-
CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-ROANOKE-BOTETOURT-ROCKBRIDGE-
PATRICK-FRANKLIN-BEDFORD-AMHERST-HENRY-PITTSYLVANIA-CAMPBELL-
APPOMATTOX-BUCKINGHAM-HALIFAX-CHARLOTTE-MERCER-SUMMERS-MONROE-
GREENBRIER-
355 AM EDT TUE MAY 29 2012

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

.DAY ONE...TODAY AND TONIGHT.

ISOLATED STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE AHEAD OF
A COLD FRONT THIS AFTERNOON AND EVENING. HEAVY RAINFALL COULD
ALSO LEAD TO LOCALIZED FLASH FLOODING.

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

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER LOW AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, May 29, 3:34 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
334 PM EDT TUE MAY 29 2012

VAZ007-292000-
TAZEWELL VA-
334 PM EDT TUE MAY 29 2012

...A STRONG THUNDERSTORM WILL AFFECT TAZEWELL COUNTY...

AT 332 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 9 MILES SOUTHEAST
OF RICHLANDS...MOVING NORTHEAST AT 20 MPH.

WIND GUSTS TO 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.

THIS STORM WILL BE NEAR CLIFFIELD AROUND 340 PM...ASBERRYS AROUND 350
PM AND TAZEWELL AROUND 400 PM.

LAT...LON 3724 8148 3706 8138 3704 8145 3702 8146
      3695 8169 3698 8171 3696 8178 3704 8182
      3708 8186

The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 4:05 PM EDT	Special Weather Statement	RNK	Tazewell	25 min
May 29, 4:21 PM EDT	Special Weather Statement	RNK	Pulaski	39 min
May 29, 4:35 PM EDT	Special Weather Statement	RNK	Bath	40 min
May 29, 4:41 PM EDT	Special Weather Statement	RNK	Pulaski	49 min
May 29, 4:50 PM EDT	Special Weather Statement	RNK	Alleghany	40 min
May 29, 4:56 PM EDT	Special Weather Statement	RNK	Craig	49 min
May 29, 5:20 PM EDT	Areal Flood Advisory	RNK	Giles	3 hr
May 29, 5:40 PM EDT	Special Weather Statement	RNK	Craig	50 min
May 29, 6:09 PM EDT	Special Weather Statement	RNK	Rockbridge, City of Lexington	51 min
May 29, 6:22 PM EDT	Special Weather Statement	RNK	City of Roanoke, City of Salem	38 min
May 29, 6:51 PM EDT	Special Weather Statement	RNK	Amherst, Bedford, Rockbridge, City of Buena Vista, City of Lexington	39 min
May 29, 6:36 PM EDT	Special Weather Statement	RNK	Caswell	24 min
May 28, 8:02 PM EDT	Special Weather Statement	RNK	Summers	43 min
May 29, 4:16 PM EDT	Special Weather Statement	RNK	Greenbrier	59 min
May 29, 4:31 PM EDT	Special Weather Statement	RNK	Greenbrier	44 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.