Alert archive / Virginia / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 138, NWS Blacksburg, VA

July 13, 2006Craig County, Virginia; Monroe County, West Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jul 13, 2006, 1:45 PM EDT for Craig County, Virginia; Monroe County, West Virginia. It was in force for 60 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
Jul 13, 2006, 1:45 PM EDT (17:45 UTC)
Expired
Jul 13, 2006, 2:45 PM EDT
In force
60 min
Issued by
NWS Blacksburg, VA
Area
Counties, with a storm outline in the text

Counties Craig County, VA, Monroe County, WV

The radar

The Roanoke radar (KFCX), 56 km from the middle of the area, began a volume at 17:46 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, 5.8 hours before the alert went out and 86 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-pSkew-T log-p diagram, Roanoke, VA at 12:00Z on 2006-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 108 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 12:00Z on 2006-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
108 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
1060 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
54 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 Jul 13, 1:14 PM EDT, 31 minutes earlier.

Area forecast discussion, Jul 13, 1:14 PM EDT, 31 minutes before
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Hazardous weather outlook, Jul 13, 12:09 PM EDT, 1 hour 36 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
1209 PM EDT THU JUL 13 2006

NCZ004>006-020-VAZ043-044-058-141615-
STOKES-ROCKINGHAM-CASWELL-YADKIN-HENRY-PITTSYLVANIA-HALIFAX-
1209 PM EDT THU JUL 13 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
NORTH CAROLINA...NORTHWEST NORTH CAROLINA AND SOUTH CENTRAL
VIRGINIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON AS
A WEAK COLD FRONT SAGS TOWARD THE REGION FROM THE NORTH. SOME OF
THESE STORMS COULD BE SEVERE RESULTING IN DAMAGING WINDS AND SOME
HAIL. IN ADDITION...SOME STORMS COULD CONTAIN TORRENTIAL DOWNPOURS
WHICH MAY RESULT IN MINOR FLOODING INTO TONIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SHOWERS AND THUNDERSTORMS CONTAINING HEAVY RAIN WILL LIKELY
PERSIST FRIDAY INTO SATURDAY AS A WEAK FRONT STALLS OVER THE REGION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING.

VAZ007-010-011-013-014-018>020-022>024-034-035-045>047-059-WVZ044-
141615-
TAZEWELL-BLAND-GILES-PULASKI-MONTGOMERY-CRAIG-ALLEGHANY-BATH-
ROANOKE-BOTETOURT-ROCKBRIDGE-BEDFORD-AMHERST-CAMPBELL-APPOMATTOX-
BUCKINGHAM-CHARLOTTE-MONROE-
1209 PM EDT THU JUL 13 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
VIRGINIA...SOUTH CENTRAL VIRGINIA...SOUTHWEST VIRGINIA...WEST
CENTRAL VIRGINIA AND SOUTHEAST WEST VIRGINIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SHOWERS AND THUNDERSTORMS WILL BECOME MORE WIDESPREAD THIS
AFTERNOON AND THEN CONTINUE THROUGH AT LEAST EARLY TONIGHT. SOME
OF THE STRONGER STORMS COULD PRODUCE DAMAGING WINDS AND ISOLATED
LARGE HAIL. IN ADDITION TORRENTIAL DOWNPOURS ARE LIKELY WITH THE
BANDS OF SHOWERS AND THUNDERSTORMS AND COULD LEAD TO LOCALIZED
FLOODING THROUGH THIS EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SHOWERS AND THUNDERSTORMS PRODUCING LOCALLY HEAVY RAIN WILL
CONTINUE ESPECIALLY DURING THE AFTERNOON AND EVENING HOURS THROUGH
SATURDAY. THESE AGAIN COULD CAUSE ISOLATED FLOODING TO OCCUR.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED THIS AFTERNOON AND EVENING.

NCZ001>003-018-019-VAZ009-012-015>017-032-033-141615-
ASHE-ALLEGHANY-SURRY-WATAUGA-WILKES-SMYTH-WYTHE-GRAYSON-CARROLL-
FLOYD-PATRICK-FRANKLIN-
1209 PM EDT THU JUL 13 2006

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

A WEAK COLD FRONT WILL APPROACH FROM THE NORTH BY THIS EVENING
RESULTING IN SCATTERED SHOWERS AND THUNDERSTORMS THROUGH TONIGHT.
SOME OF THESE STORMS COULD CONTAIN STRONG WINDS ALONG WITH SOME
HAIL. IN ADDITION TORRENTIAL DOWNPOURS MAY PRODUCE LOCALIZED
FLOODING INTO THIS EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

MORE SHOWERS AND THUNDERSTORMS ARE LIKELY FRIDAY INTO SATURDAY AS
A WEAK FRONT STALLS OVER THE REGION. HEAVY RAINFALL MAY AGAIN
CAUSE ISOLATED FLOODING TO OCCUR.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING.

WVZ042-043-045-141615-
MERCER-SUMMERS-GREENBRIER-
1209 PM EDT THU JUL 13 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST WEST
VIRGINIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A FLASH FLOOD WATCH IS IN EFFECT THROUGH LATE TONIGHT.

SHOWERS AND THUNDERSTORMS WILL BECOME MORE WIDESPREAD THIS
AFTERNOON AND THEN CONTINUE THROUGH AT LEAST EARLY TONIGHT.
RAINFALL RATES OF UP TO 3 INCHES PER HOUR ARE POSSIBLE WITH SOME
STORMS...LEADING TO FLASH FLOODING OF AREA CREEKS AND STREAMS.

ALSO...SOME OF THE STRONGER STORMS COULD PRODUCE DAMAGING WINDS
AND ISOLATED LARGE HAIL.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SHOWERS AND THUNDERSTORMS PRODUCING LOCALLY HEAVY RAIN WILL
CONTINUE ESPECIALLY DURING THE AFTERNOON AND EVENING HOURS THROUGH
SATURDAY. THESE AGAIN COULD CAUSE ISOLATED FLOODING TO OCCUR.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED THIS AFTERNOON AND EVENING.

In the hours before

Special weather statement, Jul 13, 1:23 PM EDT, 22 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 2:59 PM EDTSevere Thunderstorm WarningRNKBedford, Botetourt61 min
Jul 13, 3:16 PM EDTSevere Thunderstorm WarningRNKMontgomery, Roanoke, City of Roanoke, City of Salem59 min
Jul 13, 4:18 PM EDTFlash Flood WarningRNKBedford6 hr
Jul 13, 4:34 PM EDTSevere Thunderstorm WarningRNKFranklin37 min
Jul 13, 4:35 PM EDTFlash Flood WarningRNKHalifax6 hr
Jul 13, 5:58 PM EDTSevere Thunderstorm WarningRNKHalifax47 min
Jul 13, 6:54 PM EDTSevere Thunderstorm WarningRNKPittsylvania, City of Danville66 min
Jul 13, 5:19 PM EDTSevere Thunderstorm WarningRNKSurry, Yadkin56 min
Jul 13, 6:23 PM EDTSevere Thunderstorm WarningRNKStokes37 min
Jul 13, 6:36 PM EDTSevere Thunderstorm WarningRNKRockingham54 min
Jul 13, 7:52 PM EDTSevere Thunderstorm WarningRNKCaswell23 min
Jul 13, 12:03 PM EDTFlash Flood WatchRNKMercer, Summers13 hr

Nearby

Severe Thunderstorm Warnings in Virginia, 2006Severe Thunderstorm Warnings in West Virginia, 2006Every severe thunderstorm warning in 2006

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.