Alert archive / Virginia / Special Weather Statements in 2013

Special Weather Statement, NWS Blacksburg, VA

August 23, 2013Campbell County, Virginia

NWS Blacksburg, VA issued this special weather statement at Aug 23, 2013, 3:49 PM EDT for Campbell County, Virginia. It was in force for 26 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 23, 2013, 3:49 PM EDT (19:49 UTC)
Expired
Aug 23, 2013, 4:15 PM EDT
In force
26 min
Issued by
NWS Blacksburg, VA

County Campbell County, VA

The radar

The Roanoke radar (KFCX), 101 km from the middle of the area, began a volume at 19:50 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, 7.8 hours before the alert went out and 140 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 2013-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 293 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 2013-08-23The 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
293 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
1120 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
13 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 Aug 23, 1:23 PM EDT, 2 hours 26 minutes earlier.

Area forecast discussion, Aug 23, 1:23 PM EDT, 2 hours 26 minutes before
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Hazardous weather outlook, Aug 23, 3:49 PM EDT, 0 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
349 PM EDT FRI AUG 23 2013

VAZ007-009>014-017>020-022>024-034-035-047-WVZ042>045-242000-
TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-MONTGOMERY-FLOYD-CRAIG-
ALLEGHANY VA-BATH-ROANOKE-BOTETOURT-ROCKBRIDGE-BEDFORD-AMHERST-
BUCKINGHAM-MERCER-SUMMERS-MONROE-GREENBRIER-
349 PM EDT FRI AUG 23 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL VIRGINIA...SOUTH
CENTRAL VIRGINIA...SOUTHWEST VIRGINIA...WEST CENTRAL VIRGINIA AND
SOUTHEAST WEST VIRGINIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A LOW PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER THIS
AFTERNOON AND TONIGHT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NCZ001>006-018>020-VAZ015-016-032-033-043>046-058-059-242000-
ASHE-ALLEGHANY NC-SURRY-STOKES-ROCKINGHAM-CASWELL-WATAUGA-WILKES-
YADKIN-GRAYSON-CARROLL-PATRICK-FRANKLIN-HENRY-PITTSYLVANIA-CAMPBELL-
APPOMATTOX-HALIFAX-CHARLOTTE-
349 PM EDT FRI AUG 23 2013

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 TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED
INTO THIS EVENING. LOCALLY HEAVY RAIN IS POSSIBLE WHICH MAY CAUSE
MINOR FLOODING. SOME OF THE STRONGER STORMS MAY PRODUCE STRONG
GUSTY WINDS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

RCS

In the hours before

Special weather statement, Aug 23, 2:17 PM EDT, 1 hour 32 minutes before
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Special weather statement, Aug 23, 2:29 PM EDT, 1 hour 20 minutes before
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Special weather statement, Aug 23, 3:11 PM EDT, 38 minutes before
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Special weather statement, Aug 23, 3:22 PM EDT, 27 minutes before
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Special weather statement, Aug 23, 3:41 PM EDT, 8 minutes before
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Special weather statement, Aug 23, 3:49 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
349 PM EDT FRI AUG 23 2013

VAZ034-044-045-232015-
BEDFORD VA-PITTSYLVANIA VA-CAMPBELL VA-
349 PM EDT FRI AUG 23 2013

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SPECIAL WEATHER STATEMENT FOR...
  SOUTHERN BEDFORD COUNTY IN SOUTH CENTRAL VIRGINIA...
  NORTHEASTERN PITTSYLVANIA COUNTY IN SOUTH CENTRAL VIRGINIA...
  CAMPBELL COUNTY IN CENTRAL VIRGINIA...

* UNTIL 415 PM EDT

* AT 346 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
  TRACKING A LINE OF THUNDERSTORMS WITH HEAVY DOWNPOURS ALONG A LINE
  EXTENDING FROM BOCOCK TO HUDDLESTON... MOVING TO THE SOUTHEAST AT
  25 MPH.

* VERY HEAVY RAIN IS FALLING...AND WILL CAUSE WATER TO POND ON
  ROADWAYS. THIS WILL MAKE DRIVING HAZARDOUS.

* LOCATIONS IMPACTED INCLUDE...
  EVINGTON...
  HUDDLESTON...
  HURT...
  RUSTBURG...
  AND GRETNA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PROLONGED HEAVY RAINFALL MAY CAUSE WATER TO FLOW OVER THE ROADWAY. DO
NOT DRIVE YOUR VEHICLE WHERE THE ROAD HAS BECOME FLOODED.

&&

LAT...LON 3718 7890 3692 7942 3715 7961 3739 7910
      3730 7898
TIME...MOT...LOC 1946Z 323DEG 20KT 3735 7909 3714 7953

MBS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 8:57 PM EDTSpecial Weather StatementRNKHalifax18 min
Aug 22, 9:20 PM EDTSpecial Weather StatementRNKHalifax25 min
Aug 23, 8:31 AM EDTSpecial Weather StatementRNKTazewell59 min
Aug 23, 9:34 AM EDTSpecial Weather StatementRNKBland, Smyth, Tazewell56 min
Aug 23, 10:32 AM EDTSpecial Weather StatementRNKGrayson, Smyth43 min
Aug 23, 10:39 AM EDTAreal Flood AdvisoryRNKSmyth3 hr
Aug 23, 2:17 PM EDTSpecial Weather StatementRNKCity of Buena Vista28 min
Aug 23, 2:29 PM EDTSpecial Weather StatementRNKBotetourt31 min
Aug 23, 2:50 PM EDTAreal Flood AdvisoryRNKBedford, Botetourt115 min
Aug 23, 3:11 PM EDTSpecial Weather StatementRNKAmherst, City of Buena Vista, City of Lexington34 min
Aug 23, 3:22 PM EDTSpecial Weather StatementRNKBedford, City of Lynchburg23 min
Aug 23, 3:41 PM EDTSpecial Weather StatementRNKAppomattox34 min
Aug 23, 4:14 PM EDTSpecial Weather StatementRNKCampbell, Charlotte, Pittsylvania31 min
Aug 23, 4:42 PM EDTSevere Thunderstorm WarningRNKPittsylvania, City of Danville48 min
Aug 23, 4:46 PM EDTSpecial Weather StatementRNKCharlotte, Halifax, Pittsylvania44 min
Aug 23, 5:21 PM EDTSpecial Weather StatementRNKCity of Martinsville39 min
Aug 23, 5:35 PM EDTSpecial Weather StatementRNKCity of Danville55 min
Aug 23, 5:42 PM EDTAreal Flood AdvisoryRNKFranklin, Henry, Pittsylvania, City of Martinsville3 hr
Aug 23, 6:08 PM EDTSevere Thunderstorm WarningRNKHenry, City of Martinsville67 min
Aug 23, 6:24 PM EDTSpecial Weather StatementRNKHenry, City of Danville, City of Martinsville66 min
Aug 23, 11:16 AM EDTSpecial Weather StatementRNKAlleghany, Ashe44 min
Aug 23, 7:21 PM EDTSpecial Weather StatementRNKStokes39 min
Aug 22, 8:06 PM EDTSpecial Weather StatementRNKGreenbrier24 min
Aug 23, 7:27 AM EDTSpecial Weather StatementRNKMonroe, Summers63 min

Nearby

Special Weather Statements in Virginia, 2013Every special weather statement in 2013

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.