Alert archive / Virginia / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 270, NWS Blacksburg, VA

November 16, 2006Bedford County, Franklin County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Nov 16, 2006, 2:59 AM EST for Bedford County, Franklin County, Virginia. It was in force for 31 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
Nov 16, 2006, 2:59 AM EST (07:59 UTC)
Expired
Nov 16, 2006, 3:30 AM EST
In force
31 min
Issued by
NWS Blacksburg, VA
Area
Counties, with a storm outline in the text

Counties Bedford County, VA, Franklin County, VA

The radar

The Roanoke radar (KFCX), 53 km from the middle of the area, began a volume at 08:00 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 00:00Z, 8.0 hours before the alert went out and 121 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 00:00Z on 2006-11-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2006-11-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 394 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1176 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
394 m²/s²
0-3 km storm-relative helicity
496 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 Nov 16, 2:39 AM EST, 20 minutes earlier.

Area forecast discussion, Nov 16, 2:39 AM EST, 20 minutes before
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Hazardous weather outlook, Nov 15, 10:11 PM EST, 4 hours 48 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
1011 PM EST WED NOV 15 2006

NCZ001>003-018>020-VAZ010>017-032-170315-
ASHE-ALLEGHANY NC-SURRY-WATAUGA-WILKES-YADKIN-BLAND-GILES-WYTHE-
PULASKI-MONTGOMERY-GRAYSON-CARROLL-FLOYD-PATRICK-
1011 PM EST WED NOV 15 2006

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

.DAY ONE...TONIGHT

A FLASH FLOOD WATCH IS IN EFFECT FOR TONIGHT. SHOWERS TONIGHT ARE
EXPECTED TO BE HEAVY AT TIMES...AND MAY BRING RAINFALL RATES OF 1
TO 2 INCHES AN HOUR FOR A PERIOD. RAINFALL TOTALS OF 1.5 TO 3
INCHES ARE LIKELY...ESPECIALLY ALONG AND NEAR THE BLUE RIDGE. IN
ADDITION A WIND ADVISORY IS IN EFFECT FOR SOUTHEAST WINDS WHICH
MAY GUST AS HIGH AS 50 MPH TONIGHT ACROSS THE HIGHER ELEVATIONS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NECESSARY TONIGHT.

VAZ007-009-WVZ042-170315-
TAZEWELL-SMYTH-MERCER-
1011 PM EST WED NOV 15 2006

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

.DAY ONE...TONIGHT

A HIGH WIND WARNING IS IN EFFECT FOR TONIGHT. SOUTH-SOUTHEAST
WINDS AHEAD OF A SLOW MOVING COLD FRONT MAY GUST AS HIGH AS 60 MPH
TONIGHT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NECESSARY TONIGHT.

WVZ043>045-170315-
SUMMERS-MONROE-GREENBRIER-
1011 PM EST WED NOV 15 2006

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

.DAY ONE...TONIGHT

A WIND ADVISORY IS IN EFFECT FOR LATE THIS AFTERNOON THROUGH EARLY
THURSDAY MORNING FOR WIND SOUTHEAST WIND GUSTS TO 50 MPH ALONG THE
HIGHER RIDGES. SHOWERS MAY BECOME HEAVY LATE TONIGHT AS A COLD
FRONT MOVES SLOWLY THROUGH THE AREA.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

SHOWERS ALONG A SLOW MOVING COLD FRONT MAY CONTINUE TO BE HEAVY
THURSDAY MORNING. TOTAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE
EXPECTED AT THIS TIME. THIS MAY BE ENOUGH TO CAUSE LOCALIZED FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

NCZ004>006-VAZ018>020-022>024-033>035-043>047-058-059-170315-
STOKES-ROCKINGHAM-CASWELL-CRAIG-ALLEGHANY VA-BATH-ROANOKE-
BOTETOURT-ROCKBRIDGE-FRANKLIN-BEDFORD-AMHERST-HENRY-PITTSYLVANIA-
CAMPBELL-APPOMATTOX-BUCKINGHAM-HALIFAX-CHARLOTTE-
1011 PM EST WED NOV 15 2006

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

.DAY ONE...TONIGHT

SHOWERS MAY BECOME HEAVY LATE TONIGHT AS A COLD FRONT MOVES SLOWLY
THROUGH THE AREA.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

SHOWERS ALONG A SLOW MOVING COLD FRONT MAY CONTINUE TO BE HEAVY
THURSDAY MORNING. TOTAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE
EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

In the hours before

Special weather statement, Nov 15, 11:59 PM EST, 3 hours before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1159 PM EST WED NOV 15 2006

NCZ002-003-019-020-VAZ011-013>017-032-WVZ044-160600-
YADKIN NC-WILKES NC-SURRY NC-ALLEGHANY NC-GRAYSON VA-PATRICK VA-
FLOYD VA-MONTGOMERY VA-GILES VA-MONROE WV-CARROLL VA-PULASKI VA-
1159 PM EST WED NOV 15 2006

AT 1157 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF THUNDERSTORMS WITH VERY HEAVY RAINFALL EXTENDING FROM
EASTERN WILKES AND YADKIN COUNTIES...NORTHWARD INTO ALLEGHANY AND
SURRY COUNTIES IN NORTHWEST NORTH CAROLINA...AND NORTHWARD INTO THE
VIRGINIA BORDER COUNTIES INCLUDING THE NEW RIVER VALLEY. THIS LINE
IS MOVING SLOWLY EASTWARD...AND PRODUCING VERY HEAVY RAINFALL.
RAINFALL AMOUNTS OF 1 TO 2 INCHES CAN BE EXPECTED WITH THIS LINE AS
IT MOVES THROUGH.

FLOODING OF SMALL STREAMS AND CREEKS IS POSSIBLE FROM THIS HEAVY
RAINFALL. LISTEN TO NOAA WEATHER RADIO OR YOUR FAVORITE MEDIA OUTLET
FOR FURTHER STATEMENTS OR POSSIBLE WARNINGS.

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

JJ
Special weather statement, Nov 16, 12:53 AM EST, 2 hours 6 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1253 AM EST THU NOV 16 2006

NCZ003>005-020-VAZ011-013-014-016>018-022-032-033-043-WVZ044-160700-
YADKIN NC-ROCKINGHAM NC-STOKES NC-SURRY NC-PATRICK VA-FLOYD VA-
FRANKLIN VA-MONTGOMERY VA-GILES VA-CRAIG VA-MONROE WV-CARROLL VA-
HENRY VA-PULASKI VA-ROANOKE VA-
1253 AM EST THU NOV 16 2006

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF STRONG
THUNDERSTORMS EXTENDING FROM GILES COUNTY...SOUTHWARD THROUGH
PULASKI...CARROLL...FLOYD AND PATRICK COUNTIES IN SOUTHWEST
VIRGINIA...AND THROUGH STOKES COUNTY IN NORTHWEST NORTH CAROLINA.
THIS LINE WAS MOVING EAST AT AROUND 25 MPH...AND WILL BE MOVING INTO
CRAIG...MONTGOMERY...ROANOKE...FRANKLIN AND HENRY COUNTIES IN
SOUTHWEST VIRGINIA...AND ROCKINGHAM COUNTY IN NORTHWEST NORTH
CAROLINA BY 200 PM.

THESE STORMS WILL BRING VERY HEAVY RAINFALL OF AROUND AN INCH IN
LESS THAN 30 MINUTES TO LOCATIONS THEY PASS OVER...AND WILL HAVE THE
POTENTIAL TO PRODUCE STRONG DAMAGING WINDS...ESPECIALLY IN THE
PIEDMONT AREAS OF HENRY AND ROCKINGHAM COUNTIES.

MINOR FLOODING OF POOR DRAINAGE AREAS IS LIKELY. MOTORISTS SHOULD
WATCH FOR PONDING OF WATER ON THE ROADS.

THE PUBLIC IS ENCOURAGED TO RELAY REPORTS OF STRONG WINDS...HAIL OR
FLOODING TO THE NATIONAL WEATHER SERVICE IN BLACKSBURG BY CALLING
1...8 6 6...2 1 5...4 3 2 4.

JJ
Special weather statement, Nov 16, 2:02 AM EST, 57 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
202 AM EST THU NOV 16 2006

NCZ005-006-VAZ017-018-022-023-033-034-043-044-160800-
ROCKINGHAM NC-CASWELL NC-FLOYD VA-FRANKLIN VA-CRAIG VA-BOTETOURT VA-
PITTSYLVANIA VA-HENRY VA-ROANOKE VA-BEDFORD VA-
202 AM EST THU NOV 16 2006

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES A NARROW LINE OF
VERY HEAVY RAINFALL AT 2 AM...EXTENDING FROM CRAIG COUNTY VIRGINIA
BACK THROUGH ROCKINGHAM COUNTY NORTH CAROLINA. THIS LINE WAS SLOWLY
MOVING NORTHEAST AROUND 20 MPH.

THE LINE OF HEAVIEST RAINFALL WILL BE NEAR...GLENVAR AND
MARTINSVILLE BY 210 AM...POAGES MILL...CAVE SPRING AND REIDSVILLE
AROUND 220 AM...SALEM CITY AND HARRISONS CROSSROADS AT 225 AM...AND
CATAWBA...ABBOTT... AND ROANOKE BY 235 AM.

AS THIS AREA OF HEAVY RAINFALL MOVES THROUGH THE REGION...EXPECT
BRIEF DOWNPOURS TO PRODUCE UP TO AN INCH OF RAIN IN A VERY SHORT
AMOUNT OF TIME...WHICH MAY LEAD TO PONDING OF WATER IN POOR DRAINAGE
AREAS. IN ADDITION...GUSTY WINDS UP TO 40 MPH MAY OCCUR WITH ANY
THUNDERSTORMS THAT ACCOMPANY THIS AREA OF HEAVY RAIN.

THE PUBLIC IS ENCOURAGED TO RELAY REPORTS OF SIGNIFICANT WEATHER TO
THE NATIONAL WEATHER SERVICE IN BLACKSBURG BY CALLING TOLL FREE
1...8 6 6...2 1 5...4 3 2 4.

LAWRENCE

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 16, 8:28 AM ESTFlash Flood WarningRNKPatrick3 hr
Nov 16, 9:26 AM ESTFlash Flood WarningRNKRockbridge, City of Lexington3 hr
Nov 16, 10:14 AM ESTFlash Flood WarningRNKBedford3 hr
Nov 16, 12:02 AM ESTSevere Thunderstorm WarningRNKYadkin43 min
Nov 16, 12:06 AM ESTTornado WarningRNKYadkin24 min
Nov 16, 12:23 AM ESTSevere Thunderstorm WarningRNKSurry26 min

Nearby

Severe Thunderstorm Warnings in 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.