Alert archive / Virginia / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 171, NWS Blacksburg, VA

June 14, 20084 counties in Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jun 14, 2008, 5:06 PM EDT for 4 counties in Virginia. It was in force for 69 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: Jun 14, 2008, 5:06 PM EDT (21:06 UTC)
Expired: Jun 14, 2008, 6:15 PM EDT
In force: 69 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon

Counties Appomattox County, VA, Buckingham County, VA, Campbell County, VA, Charlotte County, VA

The radar

The Roanoke radar (KFCX), 136 km from the middle of the area, began a volume at 21:05 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, 9.1 hours before the alert went out and 65 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: 277 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 847 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 85 m²/s²
0-3 km storm-relative helicity: 43 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Jun 14, 2:45 PM EDT, 2 hours 21 minutes earlier.

Area forecast discussion, Jun 14, 2:45 PM EDT, 2 hours 21 minutes before

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Hazardous weather outlook, Jun 14, 6:44 AM EDT, 10 hours 22 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
644 AM EDT SAT JUN 14 2008

NCZ001-002-018-VAZ007-009>020-WVZ042>045-151045-
ASHE-ALLEGHANY NC-WATAUGA-TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-
MONTGOMERY-GRAYSON-CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-MERCER-
SUMMERS-MONROE-GREENBRIER-
644 AM EDT SAT JUN 14 2008

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

.DAY ONE...TODAY AND TONIGHT

ISOLATED STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE AHEAD OF A
COLD FRONT THIS AFTERNOON INTO EARLY THIS EVENING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

ADDITIONAL STRONG TO SEVERE THUNDERSTORMS COULD AFFECT THE AREA
LATE MONDAY INTO MONDAY NIGHT AHEAD OF A MUCH STRONGER COLD FRONT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NCZ003>006-019-020-VAZ022>024-032>035-043>047-058-059-151045-
SURRY-STOKES-ROCKINGHAM-CASWELL-WILKES-YADKIN-ROANOKE-BOTETOURT-
ROCKBRIDGE-PATRICK-FRANKLIN-BEDFORD-AMHERST-HENRY-PITTSYLVANIA-
CAMPBELL-APPOMATTOX-BUCKINGHAM-HALIFAX-CHARLOTTE-
644 AM EDT SAT JUN 14 2008

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...TODAY AND TONIGHT

A FEW STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE AHEAD OF A
COLD FRONT THIS AFTERNOON AND EVENING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, Jun 14, 3:41 PM EDT, 1 hour 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
341 PM EDT SAT JUN 14 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0312 PM     TSTM WND DMG     HILLSVILLE              36.77N 80.73W
06/14/2008                   CARROLL            VA   AMATEUR RADIO

            TREES DOWN.

&&

11

Local storm report, Jun 14, 4:13 PM EDT, 53 minutes before

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Local storm report, Jun 14, 4:17 PM EDT, 49 minutes before

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Local storm report, Jun 14, 4:31 PM EDT, 35 minutes before

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Local storm report, Jun 14, 4:32 PM EDT, 34 minutes before

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Local storm report, Jun 14, 4:36 PM EDT, 30 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
Jun 14, 1:24 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Floyd, Montgomery, Pulaski, Wythe	66 min
Jun 14, 2:13 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Bath, City of Covington	62 min
Jun 14, 2:38 PM EDT	Severe Thunderstorm Warning	RNK	Montgomery, Roanoke, City of Roanoke, City of Salem	39 min
Jun 14, 2:42 PM EDT	Severe Thunderstorm Warning	RNK	Montgomery, Pulaski, Wythe, City of Radford	63 min
Jun 14, 2:49 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Grayson, Wythe	44 min
Jun 14, 3:00 PM EDT	Severe Thunderstorm Warning	RNK	Franklin, Roanoke	60 min
Jun 14, 3:09 PM EDT	Flash Flood Warning	RNK	Carroll, Floyd, Grayson, Montgomery, Pulaski, Wythe and 1 more	3 hr
Jun 14, 3:11 PM EDT	Severe Thunderstorm Warning	RNK	Carroll	54 min
Jun 14, 3:28 PM EDT	Severe Thunderstorm Warning	RNK	Franklin, Patrick	62 min
Jun 14, 3:29 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Bedford, Botetourt, Rockbridge, City of Buena Vista, City of Lexington	63 min
Jun 14, 3:48 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Patrick	57 min
Jun 14, 3:54 PM EDT	Flash Flood Warning	RNK	Botetourt, Rockbridge, City of Buena Vista, City of Lexington	2 hr
Jun 14, 4:00 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Franklin, Pittsylvania	60 min
Jun 14, 4:33 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Campbell, Pittsylvania	57 min
Jun 14, 4:46 PM EDT	Severe Thunderstorm Warning	RNK	Henry, Patrick, Pittsylvania, City of Martinsville	59 min
Jun 14, 5:24 PM EDT	Severe Thunderstorm Warning	RNK	Halifax, Pittsylvania, City of Danville	66 min
Jun 14, 1:28 PM EDT	Severe Thunderstorm Warning	RNK	Ashe, Watauga	36 min
Jun 14, 1:41 PM EDT	Flash Flood Warning	RNK	Alleghany, Ashe, Watauga	4 hr

Nearby

Severe Thunderstorm Warnings in Virginia, 2008 Every severe thunderstorm warning in 2008

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.