Alert archive / North Carolina / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 227, NWS Blacksburg, VA

August 7, 2006Wilkes County, North Carolina

NWS Blacksburg, VA issued this severe thunderstorm warning at Aug 7, 2006, 3:06 PM EDT for Wilkes County, North Carolina. It was in force for 66 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
Aug 7, 2006, 3:06 PM EDT (19:06 UTC)
Expired
Aug 7, 2006, 4:12 PM EDT
In force
66 min
Issued by
NWS Blacksburg, VA
Area
Counties, with a storm outline in the text

County Wilkes County, NC

The radar

The Roanoke radar (KFCX), 121 km from the middle of the area, began a volume at 19:06 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, 7.1 hours before the alert went out and 114 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, Greensboro/Hi Pt, NC at 12:00Z on 2006-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1301 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, Greensboro/Hi Pt, NC at 12:00Z on 2006-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 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
1301 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
875 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
31 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 Aug 7, 1:41 PM EDT, 1 hour 25 minutes earlier.

Area forecast discussion, Aug 7, 1:41 PM EDT, 1 hour 25 minutes before
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Hazardous weather outlook, Aug 7, 3:46 AM EDT, 11 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
346 AM EDT MON AUG 7 2006

NCZ001>006-018>020-VAZ007-009>020-022>024-032>035-043>047-058-059-
WVZ042>045-080800-
ASHE-ALLEGHANY-SURRY-STOKES-ROCKINGHAM-CASWELL-WATAUGA-WILKES-
YADKIN-TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-MONTGOMERY-
GRAYSON-CARROLL-FLOYD-CRAIG-BATH-ROANOKE-BOTETOURT-ROCKBRIDGE-
PATRICK-FRANKLIN-BEDFORD-AMHERST-HENRY-PITTSYLVANIA-CAMPBELL-
APPOMATTOX-BUCKINGHAM-HALIFAX-CHARLOTTE-MERCER-SUMMERS-MONROE-
GREENBRIER-
346 AM EDT MON AUG 7 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF 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

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED INTO TONIGHT.
SOME OF THE STORMS MAY PRODUCE ISOLATED STRONG WINDS AND HAIL.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

WIDELY SCATTERED SHOWERS AND THUNDERSTORMS MAY OCCUR ON TUESDAY
AND AGAIN BY WEEKS END. ISOLATED STRONG TO SEVERE STORMS MAY DEVELOP.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

In the hours before

Special weather statement, Aug 7, 10:44 AM EDT, 4 hours 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1044 AM EDT MON AUG 7 2006

WVZ042-043-071600-
MERCER-SUMMERS-
INCLUDING THE CITIES OF...BLUEFIELD...HINTON
1044 AM EDT MON AUG 7 2006

...PERIODS OF HEAVY RAIN IN SOUTHEAST WEST VIRGINIA...

HEAVY RAIN WAS PERSISTING OVER PORTIONS OF SOUTHEAST WEST VIRGINIA
THIS MORNING. HEAVY RAIN SHOWERS AND THUNDERSTORMS WERE TRACKING
SOUTHEAST FROM RALEIGH COUNTY INTO WESTERN PORTIONS OF MERCER AND
SUMMERS COUNTIES. RAINFALL RATES OF NEARLY AN INCH AN HOUR WERE
OCCURRING NORTH AND WEST OF PRINCETON. BASED ON RADAR ESTIMATES...SOME
LOCATIONS HAVE RECEIVED AN INCH AND A HALF OF RAINFALL SINCE
8AM...AND ADDITIONAL STORMS WERE FORMING AND MOVING TOWARD THE REGION.

USE CAUTION IF DRIVING THROUGH THIS AREA THIS MORNING. SOME MINOR
FLOODING OF ROADWAYS...WHERE DRAINAGE IS POOR...WILL MAKE TRAVEL
HAZARDOUS THROUGH AT LEAST MIDDAY.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 2:00 PM EDTSevere Thunderstorm WarningRNKSmyth52 min
Aug 7, 6:15 PM EDTSevere Thunderstorm WarningRNKPulaski60 min
Aug 7, 7:27 PM EDTSevere Thunderstorm WarningRNKFranklin63 min
Aug 7, 3:52 PM EDTSevere Thunderstorm WarningRNKYadkin38 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 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.