Alert archive / Virginia / Special Weather Statements in 2012

Special Weather Statement, NWS Blacksburg, VA

June 21, 2012Carroll County, Virginia

NWS Blacksburg, VA issued this special weather statement at Jun 21, 2012, 5:03 PM EDT for Carroll County, Virginia. It was in force for 27 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: Jun 21, 2012, 5:03 PM EDT (21:03 UTC)
Expired: Jun 21, 2012, 5:30 PM EDT
In force: 27 min
Issued by: NWS Blacksburg, VA

County Carroll County, VA

The radar

The Roanoke radar (KFCX), 54 km from the middle of the area, began a volume at 21:04 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, 9.1 hours before the alert went out and 112 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: 162 J/kg
Mixed-layer CIN: -71 J/kg
Mixed-layer LCL: 1426 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -6 m²/s²
0-3 km storm-relative helicity: 28 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 Jun 21, 4:51 PM EDT, 12 minutes earlier.

Area forecast discussion, Jun 21, 4:51 PM EDT, 12 minutes before

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Hazardous weather outlook, Jun 21, 10:47 AM EDT, 6 hours 16 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
1047 AM EDT THU JUN 21 2012

NCZ005-006-VAZ035-043>047-058-059-221500-
ROCKINGHAM-CASWELL-AMHERST-HENRY-PITTSYLVANIA-CAMPBELL-APPOMATTOX-
BUCKINGHAM-HALIFAX-CHARLOTTE-
1047 AM EDT THU JUN 21 2012

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

.DAY ONE...TODAY AND TONIGHT.

TEMPERATURES CLIMBING WELL UP INTO THE 90S WILL COMBINE WITH
MODERATE RELATIVE HUMIDITIES TO PUSH HEAT INDEX VALUES UP INTO
THE 100 TO 104 DEGREE RANGE FOR A FEW HOURS THIS AFTERNOON. TODAY
WILL LIKELY BE THE HOTTEST DAY OF THE YEAR FOR MANY AREAS. LIGHT
SURFACE WINDS WILL BRING ONLY LIMITED RELIEF FOR COOLING.

PERSONS WHO MUST WORK OUTDOORS TODAY ARE ADVISED TO TAKE
APPROPRIATE ACTIONS TO MITIGATE AGAINST THE IMPACT OF HIGH HEAT
AND HUMIDITY...INCLUDING DRINKING PLENTY OF CLEAR FLUIDS...
SEEKING SHADE WHEN POSSIBLE...AND REFRAINING FROM EXCESSIVE
EXERTION.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

ISOLATED TO WIDELY SCATTERED SHOWERS AND THUNDERSTORM ARE EXPECTED
TO DEVELOP ON FRIDAY AS A COOL FRONT APPROACHES THE AREA FROM THE
WEST. SOME OF THE STRONGER STORMS ON FRIDAY AFTERNOON AND EVENING MAY
BE ACCOMPANIED BY GUSTY WINDS...SMALL HAIL...AND LOCALLY HEAVY
RAIN THAT MAY CAUSE ISOLATED FLOODING PROBLEMS IN AREAS OF POOR
DRAINAGE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NCZ003-004-019-020-VAZ022>024-032>034-221500-
SURRY-STOKES-WILKES-YADKIN-ROANOKE-BOTETOURT-ROCKBRIDGE-PATRICK-
FRANKLIN-BEDFORD-
1047 AM EDT THU JUN 21 2012

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.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

ISOLATED TO WIDELY SCATTERED SHOWERS AND THUNDERSTORM ARE EXPECTED
TO DEVELOP ON FRIDAY AS A COOL FRONT APPROACHES THE AREA FROM THE
WEST. SOME OF THE STRONGER STORMS ON FRIDAY AFTERNOON AND EVENING MAY
BE ACCOMPANIED BY GUSTY WINDS...SMALL HAIL...AND LOCALLY HEAVY
RAIN THAT MAY CAUSE ISOLATED FLOODING PROBLEMS IN AREAS OF POOR
DRAINAGE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NCZ001-002-018-VAZ007-009>020-WVZ042>045-221500-
ASHE-ALLEGHANY NC-WATAUGA-TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-
MONTGOMERY-GRAYSON-CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-MERCER-
SUMMERS-MONROE-GREENBRIER-
1047 AM EDT THU JUN 21 2012

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

.DAY ONE...TODAY AND TONIGHT.

WIDELY SCATTERED SHOWERS AND THUNDERSTORM WILL DEVELOP ONCE AGAIN
THIS AFTERNOON...AND CONTINUE INTO THE EVENING HOURS. SOME OF THE
STRONGER STORMS MAY BE ACCOMPANIED BY GUSTY WINDS...SMALL
HAIL...AND LOCALLY HEAVY RAIN THAT MAY CAUSE ISOLATED FLOODING
PROBLEMS IN AREAS OF POOR DRAINAGE.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

SCATTERED SHOWERS AND THUNDERSTORM ARE EXPECTED TO REDEVELOP ON
FRIDAY AS A COOL FRONT APPROACHES THE AREA FROM THE WEST. SOME OF
THE STRONGER STORMS ON FRIDAY AFTERNOON AND EVENING MAY BE
ACCOMPANIED BY GUSTY WINDS...SMALL HAIL...AND LOCALLY HEAVY RAIN
THAT MAY CAUSE ISOLATED FLOODING PROBLEMS IN AREAS OF POOR
DRAINAGE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

WERT

In the hours before

Special weather statement, Jun 21, 2:29 PM EDT, 2 hours 34 minutes before

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Special weather statement, Jun 21, 4:25 PM EDT, 38 minutes before

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Special weather statement, Jun 21, 4:41 PM EDT, 22 minutes before

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Special weather statement, Jun 21, 4:53 PM EDT, 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
453 PM EDT THU JUN 21 2012

VAZ014-212130-
MONTGOMERY VA-
453 PM EDT THU JUN 21 2012

...THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A SPECIAL
WEATHER STATEMENT FOR
NORTHEASTERN MONTGOMERY COUNTY UNTIL 530 PM EDT...

AT 451 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING A STRONG THUNDERSTORM NEAR BLACKSBURG...MOVING NORTHEAST
AT 10 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH IS EXPECTED WITH THIS
STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3723 8021 3716 8037 3724 8048 3734 8033
TIME...MOT...LOC 2051Z 239DEG 8KT 3722 8036

KM

Special weather statement, Jun 21, 4:56 PM EDT, 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
456 PM EDT THU JUN 21 2012

VAZ024-035-212130-
AMHERST VA-ROCKBRIDGE VA-
456 PM EDT THU JUN 21 2012

...THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A SPECIAL
WEATHER STATEMENT FOR
NORTHWESTERN AMHERST AND NORTHEASTERN ROCKBRIDGE
COUNTIES UNTIL 530 PM EDT...

AT 451 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING A LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING
FROM BELLS VALLEY TO COLLIERSTOWN...OR ALONG A LINE EXTENDING FROM
GOSHEN TO 8 MILES WEST OF BUENA VISTA CITY...AND MOVING EAST AT 15
MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH IS EXPECTED WITH THESE
STORMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3801 7936 3792 7919 3790 7917 3770 7929
      3772 7962 3803 7947
TIME...MOT...LOC 2051Z 252DEG 14KT 3799 7941 3777 7952

KM

Special weather statement, Jun 21, 5:03 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
503 PM EDT THU JUN 21 2012

VAZ016-212130-
CARROLL VA-
503 PM EDT THU JUN 21 2012

...THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A SPECIAL
WEATHER STATEMENT FOR
NORTHWESTERN CARROLL COUNTY UNTIL 530 PM EDT...

AT 500 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING A STRONG THUNDERSTORM NEAR GALAX HILLSVILLE AIRPORT...OR
3 MILES WEST OF HILLSVILLE...MOVING NORTHEAST AT 5 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH IS EXPECTED WITH THIS
STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3679 8088 3686 8077 3680 8065 3669 8081
TIME...MOT...LOC 2100Z 223DEG 4KT 3677 8080

KM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 2:00 PM EDT	Special Weather Statement	RNK	Bath	45 min
Jun 21, 2:29 PM EDT	Special Weather Statement	RNK	Bath	46 min
Jun 21, 4:25 PM EDT	Special Weather Statement	RNK	Wythe	50 min
Jun 21, 4:41 PM EDT	Special Weather Statement	RNK	Buckingham	34 min
Jun 21, 4:53 PM EDT	Special Weather Statement	RNK	Montgomery	37 min
Jun 21, 4:56 PM EDT	Special Weather Statement	RNK	Rockbridge, City of Buena Vista, City of Lexington	34 min
Jun 21, 5:34 PM EDT	Special Weather Statement	RNK	Rockbridge, City of Buena Vista, City of Lexington	41 min
Jun 21, 6:14 PM EDT	Special Weather Statement	RNK	City of Roanoke	46 min
Jun 21, 6:17 PM EDT	Special Weather Statement	RNK	Floyd	43 min
Jun 21, 6:28 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Bedford, Campbell, City of Lynchburg	32 min
Jun 21, 6:38 PM EDT	Special Weather Statement	RNK	Smyth, Tazewell	67 min
Jun 21, 6:46 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Smyth, Tazewell, Wythe	59 min
Jun 21, 7:01 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Bedford, Campbell, City of Lynchburg	42 min
Jun 21, 7:10 PM EDT	Areal Flood Advisory	RNK	Amherst, Bedford, Campbell, City of Lynchburg	3 hr
Jun 21, 7:15 PM EDT	Special Weather Statement	RNK	Campbell	45 min
Jun 21, 7:21 PM EDT	Flash Flood Warning	RNK	Amherst, Bedford, Campbell, City of Lynchburg	116 min
Jun 21, 7:44 PM EDT	Special Weather Statement	RNK	Appomattox	46 min
Jun 21, 7:42 PM EDT	Severe Thunderstorm Warning	RNK	Mercer	27 min

Nearby

Special Weather Statements in Virginia, 2012 Every 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.