Alert archive / Virginia / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 215, NWS Blacksburg, VA

June 22, 20085 counties in Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jun 22, 2008, 7:55 PM EDT for 5 counties in Virginia. It was in force for 33 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 22, 2008, 7:55 PM EDT (23:55 UTC)
Expired: Jun 22, 2008, 8:28 PM EDT
In force: 33 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon

Counties Amherst County, VA, Appomattox County, VA, Buckingham County, VA, Campbell County, VA, City of Lynchburg, VA

The radar

The Roanoke radar (KFCX), 126 km from the middle of the area, began a volume at 23:57 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 22, 1:15 PM EDT	Severe Thunderstorm Watch	SPC	11 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 11.9 hours before the alert went out and 56 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: 413 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 1021 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 47 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 22, 7:11 PM EDT, 44 minutes earlier.

Area forecast discussion, Jun 22, 7:11 PM EDT, 44 minutes before

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Hazardous weather outlook, Jun 22, 3:44 PM EDT, 4 hours 11 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
344 PM EDT SUN JUN 22 2008

NCZ001>006-018>020-VAZ007-009>020-022>024-032>035-043>047-058-059-
WVZ042>045-231945-
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-
344 PM EDT SUN JUN 22 2008

...SEVERE THUNDERSTORM WATCH 594 IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

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...THIS AFTERNOON AND TONIGHT

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

SCATTERED THUNDERSTORMS WILL DEVELOP ONCE AGAIN IN THE
AFTERNOON...WITH A WEAK COLD FRONT NEARBY. SOME OF THESE STORMS
COULD BE STRONG WITH WIND GUSTS AND HAIL THE PRIMARY
THREATS...ESPECIALLY ALONG SOUTHSIDE VIRGINIA.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Local storm report, Jun 22, 7:24 PM EDT, 31 minutes before

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Local storm report, Jun 22, 7:25 PM EDT, 30 minutes before

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Local storm report, Jun 22, 7:27 PM EDT, 28 minutes before

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Local storm report, Jun 22, 7:29 PM EDT, 26 minutes before

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Local storm report, Jun 22, 7:34 PM EDT, 21 minutes before

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Local storm report, Jun 22, 7:55 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
Jun 22, 12:18 AM EDT	Severe Thunderstorm Warning	RNK	Amherst, Bedford, Botetourt, Rockbridge, City of Buena Vista	46 min
Jun 22, 1:57 AM EDT	Severe Thunderstorm Warning	RNK	Amherst, Bedford, Rockbridge, City of Buena Vista	63 min
Jun 22, 12:15 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Grayson, Smyth, Wythe, City of Galax	75 min
Jun 22, 12:20 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Botetourt, Franklin, Roanoke, City of Roanoke	55 min
Jun 22, 1:03 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Pulaski, Wythe	57 min
Jun 22, 1:09 PM EDT	Severe Thunderstorm Warning	RNK	Botetourt, Craig, Roanoke	66 min
Jun 22, 1:14 PM EDT	Severe Thunderstorm Warning	RNK	Montgomery, City of Radford	61 min
Jun 22, 1:27 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Grayson, City of Galax	52 min
Jun 22, 1:44 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Botetourt, Roanoke	61 min
Jun 22, 1:49 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Franklin, Roanoke, City of Roanoke, City of Salem	56 min
Jun 22, 2:00 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Botetourt, City of Covington	60 min
Jun 22, 2:26 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Giles	64 min
Jun 22, 2:29 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Patrick	35 min
Jun 22, 2:47 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Smyth, Tazewell, Wythe	58 min
Jun 22, 2:55 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Campbell, Franklin, Pittsylvania	65 min
Jun 22, 2:56 PM EDT	Severe Thunderstorm Warning	RNK	Franklin, Henry, Patrick, City of Martinsville	42 min
Jun 22, 2:58 PM EDT	Severe Thunderstorm Warning	RNK	Smyth, Tazewell	32 min
Jun 22, 3:14 PM EDT	Severe Thunderstorm Warning	RNK	Giles	35 min
Jun 22, 3:23 PM EDT	Severe Thunderstorm Warning	RNK	Bath	29 min
Jun 22, 3:33 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany	57 min
Jun 22, 3:56 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Bedford, Campbell, Halifax, Pittsylvania, City of Lynchburg	64 min
Jun 22, 4:29 PM EDT	Severe Thunderstorm Warning	RNK	Halifax	61 min
Jun 22, 4:41 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Campbell, Charlotte	64 min
Jun 22, 5:23 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte, Halifax, Pittsylvania	67 min
Jun 22, 5:43 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte	47 min
Jun 22, 7:06 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Tazewell	54 min
Jun 22, 7:15 PM EDT	Severe Thunderstorm Warning	RNK	Grayson	50 min
Jun 22, 7:34 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Tazewell	56 min
Jun 22, 7:36 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Craig, Giles, Montgomery, Pulaski, City of Radford	54 min
Jun 22, 12:07 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Ashe, Wilkes	68 min
Jun 22, 12:53 PM EDT	Flash Flood Warning	RNK	Ashe	6 hr
Jun 22, 1:16 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Ashe, Wilkes	59 min
Jun 22, 2:08 PM EDT	Severe Thunderstorm Warning	RNK	Wilkes	56 min
Jun 22, 2:46 PM EDT	Severe Thunderstorm Warning	RNK	Caswell, Rockingham	59 min
Jun 22, 5:11 PM EDT	Flash Flood Warning	RNK	Greenbrier, Summers	4 hr
Jun 22, 5:41 PM EDT	Severe Thunderstorm Warning	RNK	Greenbrier	28 min

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.