Alert archive / North Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Blacksburg, VA

May 22, 2012Stokes County, North Carolina

NWS Blacksburg, VA issued this special weather statement at May 22, 2012, 8:32 PM EDT for Stokes County, North Carolina. It was in force for 58 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
May 22, 2012, 8:32 PM EDT (00:32 UTC)
Expired
May 22, 2012, 9:30 PM EDT
In force
58 min
Issued by
NWS Blacksburg, VA

County Stokes County, NC

The radar

The Roanoke radar (KFCX), 65 km from the middle of the area, began a volume at 00:33 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, 0.5 hours before the alert went out and 55 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 2012-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1004 joules per kilogram.LCLEL10008507005003002001001 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 2012-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 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
1004 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1300 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-4 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

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 May 22, 7:55 PM EDT, 37 minutes earlier.

Area forecast discussion, May 22, 7:55 PM EDT, 37 minutes before
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Hazardous weather outlook, May 22, 2:52 PM EDT, 5 hours 40 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
252 PM EDT TUE MAY 22 2012

NCZ001-002-018-VAZ007-009>020-022>024-WVZ042>045-231900-
ASHE-ALLEGHANY NC-WATAUGA-TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-
MONTGOMERY-GRAYSON-CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-ROANOKE-
BOTETOURT-ROCKBRIDGE-MERCER-SUMMERS-MONROE-GREENBRIER-
252 PM EDT TUE MAY 22 2012

...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   FLASH FLOOD WATCH.

IN ADDITION...SOME THUNDERSTORMS COULD PRODUCE STRONG WINDS AND HAIL
INTO THIS EVENING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THE POTENTIAL EXISTS FOR MORE HEAVY RAIN PRODUCING THUNDERSTORMS
WEDNESDAY AFTERNOON AND EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME...ALTHOUGH
SPOTTERS ARE ENCOURAGED TO REPORT FLOODING...HEAVY RAIN OVER 1
INCH PER HOUR...HAIL OR WIND DAMAGE TO OUR OFFICE.

NCZ003>006-019-020-VAZ032>035-043>047-058-059-231900-
SURRY-STOKES-ROCKINGHAM-CASWELL-WILKES-YADKIN-PATRICK-FRANKLIN-
BEDFORD-AMHERST-HENRY-PITTSYLVANIA-CAMPBELL-APPOMATTOX-BUCKINGHAM-
HALIFAX-CHARLOTTE-
252 PM EDT TUE MAY 22 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED THUNDERSTORMS MAY BRING HEAVY RAINFALL...FREQUENT CLOUD
TO GROUND LIGHTNING...AND ISOLATED STRONG WINDS OR HAIL INTO THIS
EVENING. LOCALIZED FLOODING IS ALSO POSSIBLE...ESPECIALLY IN AREAS
THAT RECEIVED HEAVIER RAINFALL ON MONDAY.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

HEAVY RAIN PRODUCING THUNDERSTORMS CAN BE EXPECTED AGAIN WEDNESDAY
AFTERNOON AND EVENING. LOCALIZED FLOODING IS POSSIBLE ALONG WITH
SOME HAIL.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME...ALTHOUGH
SPOTTERS ARE ENCOURAGED TO REPORT FLOODING...HEAVY RAIN OVER 1
INCH PER HOUR...HAIL OR WIND DAMAGE TO OUR OFFICE.

In the hours before

Special weather statement, May 22, 6:38 PM EDT, 1 hour 54 minutes before
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Special weather statement, May 22, 6:55 PM EDT, 1 hour 37 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
655 PM EDT TUE MAY 22 2012

NCZ006-222345-
CASWELL NC-
655 PM EDT TUE MAY 22 2012

...STRONG THUNDERSTORMS WILL AFFECT CASWELL COUNTY...

AT 651 PM EDT...STRONG THUNDERSTORMS WERE ALONG A LINE FROM QUICK TO
CAMP SPRINGS...MOVING EAST AT 5 MPH.

THESE STORMS WILL PRODUCE HAIL UP TO DIME SIZE AND FREQUENT
CLOUD-TO-GROUND LIGHTNING.

THESE STORMS WILL BE NEAR PELHAM AROUND 720 PM...BETHEL AROUND 730 PM
AND JERICHO AROUND 745 PM.

LAT...LON 3625 7947 3625 7953 3638 7953 3638 7952
      3651 7951 3654 7930 3654 7914 3625 7915
      3624 7916 3624 7946

RAB
Special weather statement, May 22, 7:11 PM EDT, 1 hour 21 minutes before
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Special weather statement, May 22, 7:18 PM EDT, 1 hour 14 minutes before
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Local storm report, May 22, 8:01 PM EDT, 31 minutes before
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Special weather statement, May 22, 8:32 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 8:14 PM EDTSevere Thunderstorm WarningRNKHenry, Pittsylvania, City of Martinsville42 min
May 22, 8:40 PM EDTAreal Flood AdvisoryRNKCharlotte3 hr
May 22, 9:14 PM EDTFlash Flood WarningRNKCharlotte3 hr
May 22, 10:37 PM EDTSpecial Weather StatementRNKCity of Martinsville53 min
May 22, 10:42 PM EDTSpecial Weather StatementRNKHalifax63 min
May 22, 11:09 PM EDTFlash Flood WarningRNKHenry, City of Martinsville3 hr
May 23, 4:16 AM EDTSpecial Weather StatementRNKHalifax59 min
May 23, 10:51 AM EDTSpecial Weather StatementRNKRockbridge54 min
May 23, 6:14 PM EDTSpecial Weather StatementRNKBuckingham46 min
May 23, 6:49 PM EDTSpecial Weather StatementRNKAppomattox41 min
May 22, 10:19 PM EDTSpecial Weather StatementRNKRockingham56 min
May 23, 6:04 PM EDTSpecial Weather StatementRNKSurry56 min

Nearby

Special Weather Statements in North Carolina, 2012Every special weather statement in 2012

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.