Alert archive / Virginia / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 108, NWS Blacksburg, VA

July 3, 2013Halifax County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jul 3, 2013, 3:37 PM EDT for Halifax County, Virginia. It was in force for 53 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: Jul 3, 2013, 3:37 PM EDT (19:37 UTC)
Expired: Jul 3, 2013, 4:30 PM EDT
In force: 53 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon

County Halifax County, VA

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.6 hours before the alert went out and 115 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 966 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 485 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 57 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.0

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 Jul 3, 2:03 PM EDT, 1 hour 34 minutes earlier.

Area forecast discussion, Jul 3, 2:03 PM EDT, 1 hour 34 minutes before

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Hazardous weather outlook, Jul 3, 9:51 AM EDT, 5 hours 46 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
951 AM EDT WED JUL 3 2013

NCZ001>006-018>020-VAZ009-012>020-022>024-032>034-043-044-041400-
ASHE-ALLEGHANY NC-SURRY-STOKES-ROCKINGHAM-CASWELL-WATAUGA-WILKES-
YADKIN-SMYTH-WYTHE-PULASKI-MONTGOMERY-GRAYSON-CARROLL-FLOYD-CRAIG-
ALLEGHANY VA-BATH-ROANOKE-BOTETOURT-ROCKBRIDGE-PATRICK-FRANKLIN-
BEDFORD-HENRY-PITTSYLVANIA-
951 AM EDT WED JUL 3 2013

...FLASH FLOOD WATCH IN EFFECT UNTIL 8 PM EDT THIS EVENING...

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

.DAY ONE...TODAY 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.

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

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME...BUT SPOTTERS ARE
ENCOURAGED TO REPORT FLOODING OR RAINFALL REPORTS TO US VIA
EMAIL...PHONE OR SOCIAL MEDIA.

VAZ007-010-011-WVZ042>045-041400-
TAZEWELL-BLAND-GILES-MERCER-SUMMERS-MONROE-GREENBRIER-
951 AM EDT WED JUL 3 2013

...FLASH FLOOD WATCH IN EFFECT UNTIL 8 PM EDT THIS EVENING...

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

.DAY ONE...TODAY 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.

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

SHOWERS AND STORMS THURSDAY COULD BRING ANOTHER BOUT OF HEAVY RAIN
AND POSSIBLE FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME...BUT SPOTTERS ARE
ENCOURAGED TO REPORT FLOODING OR RAINFALL REPORTS TO US VIA
EMAIL...PHONE OR SOCIAL MEDIA.

VAZ035-045>047-058-059-041400-
AMHERST-CAMPBELL-APPOMATTOX-BUCKINGHAM-HALIFAX-CHARLOTTE-
951 AM EDT WED JUL 3 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL VIRGINIA AND SOUTH
CENTRAL VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

SHOWERS AND STORMS THIS AFTERNOON COULD BRING HEAVY RAIN AT
TIMES...WHICH COULD CAUSE LOCALIZED FLOODING. AN ISOLATED STRONG
THUNDERSTORM IS ALSO POSSIBLE.

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

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, Jul 3, 12:59 PM EDT, 2 hours 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1259 PM EDT WED JUL 03 2013

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

1245 PM     FLOOD            JEFFERSON               36.42N 81.47W
07/03/2013                   ASHE               NC   911 CALL CENTER

            HIGHWAY 221 CLOSED BETWEEN JEFFERSON AND WEST JEFFERSON
            DUE TO AT LEAST 6 INCHES OF WATER COVERING THE ROAD.

&&

HYSELL

Local storm report, Jul 3, 1:32 PM EDT, 2 hours 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
132 PM EDT WED JUL 03 2013

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

0120 PM     FLOOD            3 S JEFFERSON           36.38N 81.48W
07/03/2013                   ASHE               NC   TRAINED SPOTTER

            COLE CREEK OVER ITS BANKS AT MT JEFFERSON ROAD AND
            OAKWOOD ROAD. WATER APPROACHING BUILD AT GREENFIELD CAMP
            GROUND. ESTIMATE 5-6 FEET OF WATER. COCORAHS GAGE 1.71
            INCHES SINCE 700 AM.

&&

RSTONEFI

Special weather statement, Jul 3, 1:35 PM EDT, 2 hours 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
135 PM EDT WED JUL 3 2013

NCZ005-006-VAZ044-031815-
ROCKINGHAM NC-CASWELL NC-PITTSYLVANIA VA-
135 PM EDT WED JUL 3 2013

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SPECIAL WEATHER STATEMENT FOR...
  NORTHEASTERN ROCKINGHAM COUNTY IN NORTH CENTRAL NORTH CAROLINA...
  NORTHWESTERN CASWELL COUNTY IN NORTH CENTRAL NORTH CAROLINA...
  SOUTHERN PITTSYLVANIA COUNTY IN SOUTH CENTRAL VIRGINIA...

* UNTIL 215 PM EDT

* AT 133 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  A STRONG THUNDERSTORM NEAR QUICK...MOVING TO THE NORTHEAST AT 25
  MPH.

* WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM. VERY HEAVY
  RAIN IS FALLING...AND WILL CAUSE WATER TO POND ON ROADWAYS AND
  QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.

* LOCATIONS IMPACTED INCLUDE...
  PROVIDENCE...
  MAYFIELD...
  DANVILLE CITY...
  CAMP SPRINGS...
  AND GATEWOOD.

LAT...LON 3633 7965 3667 7950 3661 7925 3625 7943
      3625 7950
TIME...MOT...LOC 1733Z 212DEG 21KT 3635 7951

CF

Local storm report, Jul 3, 1:38 PM EDT, 1 hour 59 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
138 PM EDT WED JUL 03 2013

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

0100 PM     FLOOD            GALAX CITY              36.67N 80.92W
07/03/2013                   CITY OF GALAX      VA   TRAINED SPOTTER

            BETWEEN 6-8 INCHES OF WATER COVERING GIVENS STREET AND
            RAILROAD AVENUE.

&&

HYSELL

Special weather statement, Jul 3, 2:46 PM EDT, 51 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
246 PM EDT WED JUL 3 2013

VAZ044-058-031930-
HALIFAX VA-PITTSYLVANIA VA-
246 PM EDT WED JUL 3 2013

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SPECIAL WEATHER STATEMENT FOR...
  WESTERN HALIFAX COUNTY IN SOUTH CENTRAL VIRGINIA...
  EASTERN PITTSYLVANIA COUNTY IN SOUTH CENTRAL VIRGINIA...

* UNTIL 330 PM EDT

* AT 242 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM LEDA TO BLANCH...
  MOVING TO THE NORTH AT 30 MPH.

* VERY HEAVY RAIN IS FALLING...AND WILL CAUSE WATER TO POND ON
  ROADWAYS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.

* LOCATIONS IMPACTED INCLUDE...
  INGRAM...
  NATHALIE...
  MT AIRY...
  RIDGEWAY...
  AND LEDA.

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 3654 7911 3655 7923 3661 7921 3663 7935
      3707 7917 3708 7916 3700 7890 3698 7890
      3698 7889
TIME...MOT...LOC 1842Z 192DEG 24KT 3692 7903 3651 7928

PW

Special weather statement, Jul 3, 3:23 PM EDT, 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
323 PM EDT WED JUL 3 2013

VAZ045>047-058-059-032045-
HALIFAX VA-CHARLOTTE VA-BUCKINGHAM VA-APPOMATTOX VA-CAMPBELL VA-
323 PM EDT WED JUL 3 2013

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SPECIAL WEATHER STATEMENT FOR...
  HALIFAX COUNTY IN SOUTH CENTRAL VIRGINIA...
  CHARLOTTE COUNTY IN SOUTH CENTRAL VIRGINIA...
  BUCKINGHAM COUNTY IN CENTRAL VIRGINIA...
  APPOMATTOX COUNTY IN CENTRAL VIRGINIA...
  EASTERN CAMPBELL COUNTY IN CENTRAL VIRGINIA...

* UNTIL 445 PM EDT

* AT 318 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM HAT CREEK TO
  ELMO...MOVING TO THE NORTHEAST AT 20 MPH.

* VERY HEAVY RAIN IS FALLING...AND WILL CAUSE WATER TO POND ON
  ROADWAYS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.

* LOCATIONS IMPACTED INCLUDE...
  CONCORD...
  SOUTH BOSTON...
  TURBEVILLE...
  APPOMATTOX...
  AND BENT CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PROLONGED HEAVY RAINFALL MAY CAUSE WATER TO FLOW OVER THE
ROADWAY...WHICH COULD CAUSE PROBLEMS DURING THE EVENING RUSH HOUR.
DO NOT DRIVE YOUR VEHICLE WHERE THE ROAD HAS BECOME FLOODED. FIND
ALTERNATE ROUTES.

&&

LAT...LON 3735 7845 3733 7851 3740 7859 3723 7869
      3708 7845 3689 7849 3667 7862 3668 7870
      3654 7874 3654 7911 3700 7889 3709 7913
      3708 7915 3709 7915 3750 7894 3754 7883
      3763 7882 3763 7872 3779 7848 3769 7824
TIME...MOT...LOC 1918Z 208DEG 20KT 3715 7896 3669 7911

PW

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 3, 2:43 AM EDT	Special Weather Statement	RNK	Amherst, City of Lynchburg	62 min
Jul 3, 11:07 AM EDT	Special Weather Statement	RNK	City of Danville	53 min
Jul 3, 11:27 AM EDT	Special Weather Statement	RNK	Halifax	48 min
Jul 3, 12:10 PM EDT	Special Weather Statement	RNK	Grayson	50 min
Jul 3, 1:32 PM EDT	Areal Flood Advisory	RNK	Grayson, City of Galax	6 hr
Jul 3, 1:35 PM EDT	Special Weather Statement	RNK	City of Danville	40 min
Jul 3, 1:57 PM EDT	Areal Flood Advisory	RNK	Pittsylvania, City of Danville	3 hr
Jul 3, 2:46 PM EDT	Special Weather Statement	RNK	Halifax	44 min
Jul 3, 3:00 PM EDT	Areal Flood Advisory	RNK	Bland, Smyth, Tazewell, Wythe	15 hr
Jul 3, 3:07 PM EDT	Areal Flood Advisory	RNK	Halifax, Pittsylvania	3 hr
Jul 3, 3:23 PM EDT	Special Weather Statement	RNK	Appomattox, Buckingham, Charlotte, Halifax	82 min
Jul 3, 3:56 PM EDT	Special Weather Statement	RNK	Giles, Pulaski	64 min
Jul 3, 4:07 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte	53 min
Jul 3, 4:18 PM EDT	Areal Flood Advisory	RNK	Charlotte, Halifax	3 hr
Jul 3, 5:16 PM EDT	Areal Flood Advisory	RNK	Alleghany, Bath, Botetourt, Carroll, Craig, Floyd and 8 more	9 hr
Jul 3, 5:51 AM EDT	Special Weather Statement	RNK	Surry, Yadkin	54 min
Jul 3, 10:10 AM EDT	Special Weather Statement	RNK	Caswell	50 min
Jul 3, 11:09 AM EDT	Special Weather Statement	RNK	Ashe, Watauga	51 min
Jul 3, 12:50 PM EDT	Areal Flood Warning	RNK	Ashe, Watauga	6 hr
Jul 3, 6:49 PM EDT	Areal Flood Warning	RNK	Ashe, Watauga	6 hr

Nearby

Severe Thunderstorm Warnings in Virginia, 2013 Every severe thunderstorm warning 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.