Alert archive / Virginia / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 241, NWS Blacksburg, VA

June 26, 20085 counties in Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jun 26, 2008, 6:27 PM EDT for 5 counties in Virginia. It was in force for 78 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 26, 2008, 6:27 PM EDT (22:27 UTC)
Expired: Jun 26, 2008, 7:45 PM EDT
In force: 78 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon

Counties City of Martinsville, VA, Franklin County, VA, Henry County, VA, Patrick County, VA, Pittsylvania County, VA

The radar

The Roanoke radar (KFCX), 45 km from the middle of the area, began a volume at 22:30 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, 10.5 hours before the alert went out and 58 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1557 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 71 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 26, 6:00 PM EDT, 27 minutes earlier.

Area forecast discussion, Jun 26, 6:00 PM EDT, 27 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BLACKSBURG VA
600 PM EDT THU JUN 26 2008

.SYNOPSIS...
HIGH PRESSURE OVER THE SOUTHEAST WILL BRING HOT AND MORE HUMID
WEATHER INTO THE AREA THROUGH FRIDAY WITH ISOLATED TO SCATTERED
AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS. A BETTER CHANCE
OF THUNDERSTORMS ARRIVES WITH A FRONT THIS WEEKEND.

&&

.NEAR TERM /UNTIL 9 PM THIS EVENING/...
HAVE UPDATED TO ADD SCATTERED THUNDERSTORMS TO THE EASTERN COUNTY
WARNING AREA AND RAISE CHANCE OF RAIN IN THE WEST.

&&

.SHORT TERM /9 PM THIS EVENING THROUGH SUNDAY/...
THE OVERNIGHT WILL BE MAINLY QUIET...AS MODELS TAKE AN MCV FROM
NRN IND INTO PA AND WEAKEN IT. CORFIDI VECTORS STEER THE
CONVECTION SOUTHEAST TOWARD OUR WV COUNTIES OVERNIGHT SO LEFT A
SLIGHT CHANCE TO LOW CHANCE POP FROM SE WV TO NW NC.

LITTLE CHANGE EXPECTED FOR THE PERIOD FRIDAY THRU SATURDAY OTHER
THAN A SLOWLY INCREASING CHANCE OF CONVECTION. STRONG WAVE
DROPPING OUT OF SOUTHERN CANADA FRIDAY NIGHT WILL END UP PUSHING
HEIGHTS DOWN A BIT OVER THE OHIO VALLEY FOR SATURDAY...INCREASING
MOISTR SOUTHWEST FLOW...AND PROVIDING BETTER SUPPORT FOR STORMS.
BY SUNDAY...THE FAVORED 00Z ECMWF TAKES THE CLOSED LOW INTO THE
GREAT LAKES...AND KEEPS THE MAIN FRONT OVER THE OHI VALLEY WITH
LEE TROUGH IN THE PIEDMONT. SUNDAY SHOULD BE SIMILAR TO SATURDAY
IN TERMS OF THUNDERSTORM COVERAGE...BUT MAY HAVE MORE CLOUDS
KEEPING HIGHS DOWN A COUPLE DEGREES FROM SAT.

&&

.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
THE FRONT SHOULD BE SOUTHEAST OF THE FORECAST AREA MONDAY WITH
UPPER SHORTWAVES ROTATING AROUND THE LOW OVER ONTARIO...KEEPING
THREAT OF MAINLY AFTERNOON/EVENING CONVECTION GOING INTO TUESDAY.
BY WED...HIGH PRESSURE SHOULD BE INTO THE OHIO/TN VALLEYS WITH
DEEP MOISTURE WELL OFF THE COAST...SO DRIER AND LESS HUMID WX
EXPECTED FOR MIDWEEK.

&&

.AVIATION /22Z THURSDAY THROUGH TUESDAY/...
MOISTURE WILL STEADILY INCREASE INTO THE AREA THE NEXT SEVERAL
DAYS. THIS WILL LEAD TO AN INCREASE IN THUNDERSTORM ACTIVITY...
ESPECIALLY DURNING THE AFTERNOON AND EVENING HOURS.  COVERAGE
TODAY AND FRIDAY WILL BE ISOLATED TO SCATTERED AND MAINLY CONFINED
TO THE MOUNTAINS.  PRECIPITATION CHANCES WILL INCREASE ACROSS THE
ENTIRE AREA SATURDAY THROUGH MONDAY AS A COLD FRONT APPROACHES...
AND THEN PASSES ACROSS THE AREA.

LCL IFR CONDITIONS ARE POSSIBLE IN THE VICINITY OF THUNDERSTORMS
ALONG WITH VARIABLE ERRATIC WIND GUSTS. AWAY FROM THUNDERSTORMS
CONDITIONS ARE EXPECTED TO REMAIN VFR. SOME MVFR FOG IS POSSIBLE
EACH MORNING...BUT IT SHOULD DISSIPATE QUICKLY AFTER SUNRISE.

&&

.RNK WATCHES/WARNINGS/ADVISORIES...
VA...NONE.
NC...NONE.
WV...NONE.

&&

SYNOPSIS...WP
NEAR TERM...AMS
SHORT TERM...JS/WP
LONG TERM...WP
AVIATION...PM

Hazardous weather outlook, Jun 26, 6:48 AM EDT, 11 hours 39 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
648 AM EDT THU JUN 26 2008

NCZ001>006-018>020-VAZ007-009>020-022>024-032>035-043>047-058-059-
WVZ042>045-271100-
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-
648 AM EDT THU JUN 26 2008

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

AN APPROACHING COLD FRONT WILL BRING THE THREAT OF STRONG TO
POSSIBLY SEVERE THUNDERSTORMS TO THE AREA SATURDAY AND SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME...BUT MAY BE
NEEDED THIS WEEKEND.

In the hours before

Local storm report, Jun 26, 5:34 PM EDT, 53 minutes before

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Local storm report, Jun 26, 5:36 PM EDT, 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
536 PM EDT THU JUN 26 2008

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

0510 PM     HAIL             CANA                    36.58N 80.67W
06/26/2008  E0.75 INCH       CARROLL            VA   PUBLIC

            ALSO WIND DAMAGE TO OUT BLDGS.

&&

TW

Local storm report, Jun 26, 5:58 PM EDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
558 PM EDT THU JUN 26 2008

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

0500 PM     TSTM WND DMG     ROANOKE AIRPORT         37.33N 79.98W
06/26/2008                   ROANOKE            VA   LAW ENFORCEMENT

            SEVERAL TREES DOWN IN THE LOCKHAVEN AND BRADSHAW AREA
            ABOUT A HALF MILE WEST OF THE AIRPORT.

&&

SK

Local storm report, Jun 26, 6:15 PM EDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
615 PM EDT THU JUN 26 2008

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

0555 PM     HAIL             PINE HALL               36.32N 80.07W
06/26/2008  E0.75 INCH       STOKES             NC   EMERGENCY MNGR

            ALSO TREES DOWN NEAR WALNUT COVE

&&

TW

Special weather statement, Jun 26, 6:20 PM EDT, 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
620 PM EDT THU JUN 26 2008

NCZ004-005-262315-
ROCKINGHAM NC-STOKES NC-
620 PM EDT THU JUN 26 2008

AT 617 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM MADISON TO 10 MILES
SOUTHWEST OF REIDSVILLE...MOVING NORTHEAST AT 14 MPH. THE LINE OF
STRONG THUNDERSTORMS WILL BE NEAR...BETHANY AT 625 PM EDT...
MAYODAN...MAYODAN AT 630 PM EDT...MONROETON AT 635 PM EDT...
STONEVILLE AT 650 PM EDT...WENTWORTH AT 700 PM EDT...REIDSVILLE AT
705 PM EDT...

WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THESE STORMS.
RAINFALL AMOUNTS UP TO AN INCH ARE ALSO POSSIBLE.

FOR ADDITIONAL WEATHER INFORMATION...VISIT US ON THE WEB AT
HTTP://WEATHER.GOV.

KK

Local storm report, Jun 26, 6:25 PM EDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
625 PM EDT THU JUN 26 2008

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

0620 PM     TSTM WND DMG     PENHOOK                 36.98N 79.63W
06/26/2008                   FRANKLIN           VA   EMERGENCY MNGR

            TREES DOWN NEAR TOWN

&&

TW

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 26, 2:41 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Giles, Tazewell	64 min
Jun 26, 3:38 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Craig, Giles, Montgomery, Pulaski	67 min
Jun 26, 4:12 PM EDT	Severe Thunderstorm Warning	RNK	Floyd, Montgomery, Pulaski, Roanoke, City of Radford	48 min
Jun 26, 4:34 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Botetourt, Craig, Montgomery, Roanoke, City of Roanoke and 1 more	56 min
Jun 26, 4:42 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Patrick	46 min
Jun 26, 5:25 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Floyd, Patrick	80 min
Jun 26, 5:30 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Botetourt, Franklin, Roanoke, City of Roanoke	60 min
Jun 26, 6:06 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Campbell, Franklin, Pittsylvania	54 min
Jun 26, 6:58 PM EDT	Severe Thunderstorm Warning	RNK	Campbell, Halifax, Pittsylvania	54 min
Jun 26, 7:08 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Montgomery, Pulaski, Wythe	53 min
Jun 26, 7:35 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte, Halifax	55 min
Jun 26, 2:52 PM EDT	Severe Thunderstorm Warning	RNK	Wilkes	53 min
Jun 26, 3:53 PM EDT	Severe Thunderstorm Warning	RNK	Ashe, Watauga, Wilkes	67 min
Jun 26, 4:31 PM EDT	Severe Thunderstorm Warning	RNK	Surry, Yadkin	59 min
Jun 26, 5:07 PM EDT	Severe Thunderstorm Warning	RNK	Rockingham, Stokes, Surry	53 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.