Alert archive / North Carolina / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 221, NWS Blacksburg, VA

August 3, 2006Alleghany County, Surry County, North Carolina

NWS Blacksburg, VA issued this severe thunderstorm warning at Aug 3, 2006, 4:23 PM EDT for Alleghany County, Surry County, North Carolina. It was in force for 52 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 3, 2006, 4:23 PM EDT (20:23 UTC)
Expired
Aug 3, 2006, 5:15 PM EDT
In force
52 min
Issued by
NWS Blacksburg, VA
Area
Counties, with a storm outline in the text

Counties Alleghany County, NC, Surry County, NC

The radar

The Roanoke radar (KFCX), 85 km from the middle of the area, began a volume at 20:23 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, 8.4 hours before the alert went out and 99 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 2006-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1245 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 2006-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -22 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
1245 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
1369 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-22 m²/s²
0-3 km storm-relative helicity
-17 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 3, 3:21 PM EDT, 1 hour 2 minutes earlier.

Area forecast discussion, Aug 3, 3:21 PM EDT, 1 hour 2 minutes before
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Hazardous weather outlook, Aug 3, 5:27 AM EDT, 10 hours 56 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
527 AM EDT THU AUG 3 2006

NCZ005-006-VAZ044>047-058-059-040930-
ROCKINGHAM-CASWELL-PITTSYLVANIA-CAMPBELL-APPOMATTOX-BUCKINGHAM-
HALIFAX-CHARLOTTE-
527 AM EDT THU AUG 3 2006

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

.DAY ONE...TODAY AND TONIGHT

A HEAT ADVISORY IS IN EFFECT FOR THIS AFTERNOON.

HIGH TEMPERATURES TODAY WILL BE IN THE MID TO UPPER 90S. THE
HEAT INDEX VALUES AS HIGH AS 108 DEGREES CAN BE EXPECTED IN THE AFTERNOON.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

NCZ003-004-019-020-VAZ022>024-032>035-043-040930-
SURRY-STOKES-WILKES-YADKIN-ROANOKE-BOTETOURT-ROCKBRIDGE-PATRICK-
FRANKLIN-BEDFORD-AMHERST-HENRY-
527 AM EDT THU AUG 3 2006

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

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. HOWEVER...HEAT INDICES
THIS AFTERNOON WILL REACH AROUND 100 DEGREES...MAINLY IN URBAN
AREAS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

NCZ001-002-018-VAZ007-009>020-WVZ042>045-040930-
ASHE-ALLEGHANY-WATAUGA-TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-
MONTGOMERY-GRAYSON-CARROLL-FLOYD-CRAIG-BATH-MERCER-SUMMERS-MONROE-
GREENBRIER-
527 AM EDT THU AUG 3 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST NORTH
CAROLINA...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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

In the hours before

Special weather statement, Aug 3, 11:41 AM EDT, 4 hours 42 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1141 AM EDT THU AUG 3 2006

NCZ003-004-019-020-VAZ022>024-032-033-032200-
SURRY-STOKES-WILKES-YADKIN-ROANOKE-BOTETOURT-ROCKBRIDGE-PATRICK-
FRANKLIN-
INCLUDING THE CITIES OF...DOBSON...DANBURY...WILKESBORO...
YADKINVILLE...SALEM...FINCASTLE...LEXINGTON...STUART...
ROCKY MOUNT
1141 AM EDT THU AUG 3 2006

...ANOTHER HOT AND HUMID DAY...

ONE MORE DAY OF HOT WEATHER IS EXPECTED FOR SOUTHWEST VIRGINIA AND
NORTHWEST NORTH CAROLINA. HIGH TEMPERATURES WILL BE IN THE MID TO
UPPER 90S. COMBINED WITH DEW POINTS IN THE LOWER 70S...THE HEAT
INDEX THURSDAY AFTERNOON WILL EXCEED 100 DEGREES...ESPECIALLY IN
URBAN AREAS.

A FRONT WILL APPROACH THE AREA ON FRIDAY...LEADING TO MORE CLOUDS
AND A BETTER CHANCE OF RAIN...ALONG WITH HIGH TEMPERATURES IN THE
LOWER 90S.

HEAT INDICES AROUND 100 DEGREES POSE A THREAT OF HEAT ILLNESSES.
IF YOU ARE GOING TO BE OUTSIDE FOR A PROLONGED PERIOD TODAY...PLAN
ACCORDINGLY FOR THE HOT WEATHER. BE SURE TO DRINK PLENTY OF WATER
AND TAKE FREQUENT BREAKS.

JJ
Special weather statement, Aug 3, 1:44 PM EDT, 2 hours 39 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
144 PM EDT THU AUG 3 2006

VAZ032-043-031845-
PATRICK VA-HENRY VA-
144 PM EDT THU AUG 3 2006

...STRONG THUNDERSTORM OVER PATRICK AND HENRY COUNTIES...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG
THUNDERSTORM 2 MILES WEST OF HORSE PASTURE...OR ABOUT OVER PENNS
STORE. THIS STORM WAS DRIFTING SOUTHEAST AT 10 MPH...AND WILL
AFFECTING EXTREME SOUTHEAST PATRICK COUNTY AND SOUTHERN HENRY COUNTY
THROUGH 230 PM.

EXPECT RAINFALL AMOUNTS OF UP TO AN INCH IN LESS THAN 30 MINUTES AS
THIS STORM PASSES. IN ADDITION...DANGEROUS LIGHTNING STRIKES AND
WIND GUSTS TO 30 MPH CAN BE EXPECTED WITH THIS STORM.

LISTEN TO NOAA WEATHER RADIO OR YOUR FAVORITE MEDIA OUTLET FOR
UPDATES ON THIS DEVELOPING SITUATION.

JJ
Local storm report, Aug 3, 3:00 PM EDT, 1 hour 23 minutes before
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Special weather statement, Aug 3, 3:40 PM EDT, 43 minutes before
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Special weather statement, Aug 3, 3:53 PM EDT, 30 minutes before
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Local storm report, Aug 3, 4:01 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
Aug 3, 4:15 PM EDTSevere Thunderstorm WarningRNKCampbell, City of Lynchburg45 min
Aug 3, 4:47 PM EDTSevere Thunderstorm WarningRNKFranklin, Patrick33 min
Aug 3, 5:16 PM EDTSevere Thunderstorm WarningRNKBotetourt23 min
Aug 3, 5:23 PM EDTSevere Thunderstorm WarningRNKHalifax52 min
Aug 3, 5:27 PM EDTSevere Thunderstorm WarningRNKBedford33 min
Aug 3, 2:25 PM EDTSevere Thunderstorm WarningRNKStokes, Surry25 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.