Alert archive / North Carolina / Special Weather Statements in 2009

Special Weather Statement, NWS Blacksburg, VA

August 19, 2009Wilkes County, North Carolina

NWS Blacksburg, VA issued this special weather statement at Aug 19, 2009, 4:12 PM EDT for Wilkes County, North Carolina. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 19, 2009, 4:12 PM EDT (20:12 UTC)
Expired
Aug 19, 2009, 5:15 PM EDT
In force
63 min
Issued by
NWS Blacksburg, VA

County Wilkes County, NC

The radar

The Roanoke radar (KFCX), 124 km from the middle of the area, began a volume at 20:12 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, 8.2 hours before the alert went out and 184 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 2009-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 474 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 2009-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 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
474 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
748 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
58 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 19, 4:05 PM EDT, 7 minutes earlier.

Area forecast discussion, Aug 19, 4:05 PM EDT, 7 minutes before
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Hazardous weather outlook, Aug 19, 6:23 AM EDT, 9 hours 49 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
623 AM EDT WED AUG 19 2009

NCZ001>006-018>020-VAZ007-009>020-022>024-032>035-043>047-058-059-
WVZ042>045-201030-
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-
623 AM EDT WED AUG 19 2009

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.

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY
INTO THIS EVENING. SOME OF THE STORMS WILL BRING TORRENTIAL
RAINS...AND COULD CAUSE ISOLATED FLOODING PROBLEMS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

SHOWERS AND THUNDERSTORMS ARE EXPECTED INTO FRIDAY. HEAVY RAINFALL
AND ISOLATED FLOODING REMAINS A THREAT FROM THE STORMS...AND AN
ISOLATED SEVERE THUNDERSTORM IS POSSIBLE...ESPECIALLY FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Aug 19, 2:50 PM EDT, 1 hour 22 minutes before
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Special weather statement, Aug 19, 3:06 PM EDT, 1 hour 6 minutes before
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Special weather statement, Aug 19, 3:19 PM EDT, 53 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
319 PM EDT WED AUG 19 2009

NCZ003>005-020-VAZ032-043-192015-
HENRY VA-PATRICK VA-ROCKINGHAM NC-STOKES NC-SURRY NC-YADKIN NC-
319 PM EDT WED AUG 19 2009

...SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN WILL AFFECT
HENRY...PATRICK...ROCKINGHAM...STOKES...SURRY AND YADKIN COUNTIES...

AT 318 PM EDT...SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN WERE ALONG
A LINE FROM STUART TO 6 MILES SOUTH OF PILOT MOUNTAIN...MOVING EAST
AT 15 MPH.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH A THUNDERSTORM. VERY HEAVY
RAIN WILL FALL FROM THESE STORMS...AND WILL CAUSE WATER TO POND ON
ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.

STORMS WILL BE NEAR EAST BEND AROUND 325 PM...VADE MECUM...AND
PINNACLE AROUND 330 PM...CRITZ...VADE MECUM...LAWSONVILLE...AND
LAWSONVILLE AROUND 335 PM...CAPELLA AROUND 340 PM...HANGING ROCK
STATE PARK AND AND KING AROUND 345 PM.

LISTEN TO NOAA WEATHER RADIO OR YOUR FAVORITE MEDIA OUTLET FOR LATER
UPDATES OR POSSIBLE WARNINGS.

LAT...LON 3626 8067 3673 8029 3658 7973 3624 8000
      3625 8045 3622 8045 3622 8044 3620 8045

EXPERIMENTAL

KK
Local storm report, Aug 19, 3:57 PM EDT, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
357 PM EDT WED AUG 19 2009

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

0307 PM     TSTM WND DMG     ROCKY MOUNT             37.00N 79.88W
08/19/2009                   FRANKLIN           VA   LAW ENFORCEMENT

            TREES DOWN ALONG 220 AND GRASS HILL ROAD. ESTIMATED GUST
            40 MPH.

&&

KKOSTURA
Special weather statement, Aug 19, 4:01 PM EDT, 11 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
401 PM EDT WED AUG 19 2009

VAZ033-034-043>045-058-192100-
BEDFORD VA-CAMPBELL VA-FRANKLIN VA-HALIFAX VA-HENRY VA-
PITTSYLVANIA VA-
401 PM EDT WED AUG 19 2009

...SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN WILL AFFECT
BEDFORD...CAMPBELL...FRANKLIN...HALIFAX...HENRY AND PITTSYLVANIA
COUNTIES...

AT 400 PM EDT...SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN WERE ALONG
A LINE FROM 6 MILES NORTHEAST OF MONETA TO 7 MILES WEST OF
CALLANDS...MOVING EAST AT 15 MPH.

WIND GUSTS TO 50 MPH AND PEA-SIZED HAIL ARE POSSIBLE WITH
THUNDERSTORMS. VERY HEAVY RAIN WILL FALL FROM THESE STORMS...AND
WILL CAUSE WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES
AND SMALL STREAMS.

STORMS WILL BE NEAR SMITH MOUNTAIN LAKE STATE PARK AROUND 405
PM...SAGO AROUND 410 PM...SANDY RIVER...AND AJAX AROUND 415
PM...HUDDLESTON...AND CALLANDS AROUND 420 PM...SWANSONVILLE AROUND
425 PM...PITTSVILLE AND AND CLIMAX AROUND 435 PM.

LAT...LON 3654 7906 3673 7985 3736 7964 3715 7888

EXPERIMENTAL

KK
Special weather statement, Aug 19, 4:12 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
412 PM EDT WED AUG 19 2009

NCZ019-192115-
WILKES NC-
412 PM EDT WED AUG 19 2009

...SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN WILL AFFECT WILKES
COUNTY...

AT 410 PM EDT...AN AREA OF SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN
WAS LOCATED 10 MILES SOUTH OF RONDA...MOVING SOUTHEAST AT 20 MPH.

WIND GUSTS TO 50 MPH AND PEA-SIZED HAIL ARE POSSIBLE WITH ANY
THUNDERSTORMS. VERY HEAVY RAIN WILL FALL FROM THIS STORMS...AND WILL
CAUSE WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND
SMALL STREAMS.

LISTEN TO NOAA WEATHER RADIO OR YOUR FAVORITE MEDIA OUTLET FOR LATER
UPDATES OR POSSIBLE WARNINGS.

LAT...LON 3610 8114 3621 8096 3613 8088 3605 8088
      3605 8100 3603 8101 3602 8105 3602 8107

EXPERIMENTAL

KK

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 19, 1:47 PM EDTSpecial Weather StatementRNKFloyd58 min
Aug 19, 2:50 PM EDTSpecial Weather StatementRNKMontgomery55 min
Aug 19, 3:06 PM EDTSpecial Weather StatementRNKBedford, Campbell, Pittsylvania54 min
Aug 19, 3:19 PM EDTSpecial Weather StatementRNKHenry, Patrick56 min
Aug 19, 4:01 PM EDTSpecial Weather StatementRNKBedford, Pittsylvania59 min
Aug 19, 4:51 PM EDTSpecial Weather StatementRNKCharlotte, Halifax, City of Danville54 min
Aug 19, 5:08 PM EDTSpecial Weather StatementRNKFloyd67 min
Aug 19, 5:29 PM EDTSevere Thunderstorm WarningRNKCharlotte, Halifax48 min
Aug 19, 1:20 PM EDTSpecial Weather StatementRNKAlleghany55 min
Aug 19, 6:59 PM EDTSpecial Weather StatementRNKCaswell61 min
Aug 19, 7:04 PM EDTSpecial Weather StatementRNKAshe, Watauga, Wilkes56 min
Aug 19, 12:12 PM EDTSpecial Weather StatementRNKMercer63 min
Aug 19, 1:01 PM EDTSpecial Weather StatementRNKGreenbrier59 min

Nearby

Special Weather Statements in North Carolina, 2009Every special weather statement in 2009

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.