Alert archive / Virginia / Special Weather Statements in 2012

Special Weather Statement, NWS Blacksburg, VA

May 1, 2012Henry County, Virginia

NWS Blacksburg, VA issued this special weather statement at May 1, 2012, 7:06 PM EDT for Henry County, Virginia. It was in force for 54 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 1, 2012, 7:06 PM EDT (23:06 UTC)
Expired: May 1, 2012, 8:00 PM EDT
In force: 54 min
Issued by: NWS Blacksburg, VA

County Henry County, VA

The radar

The Roanoke radar (KFCX), 63 km from the middle of the area, began a volume at 23:06 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, 11.1 hours before the alert went out and 52 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: 6 J/kg
Mixed-layer CIN: -386 J/kg
Mixed-layer LCL: 1318 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 144 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 1, 6:55 PM EDT, 11 minutes earlier.

Area forecast discussion, May 1, 6:55 PM EDT, 11 minutes before

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Hazardous weather outlook, May 1, 3:25 PM EDT, 3 hours 41 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
325 PM EDT TUE MAY 1 2012

NCZ003>006-019-020-VAZ032>035-043>047-058-059-021930-
SURRY-STOKES-ROCKINGHAM-CASWELL-WILKES-YADKIN-PATRICK-FRANKLIN-
BEDFORD-AMHERST-HENRY-PITTSYLVANIA-CAMPBELL-APPOMATTOX-BUCKINGHAM-
HALIFAX-CHARLOTTE-
325 PM EDT TUE MAY 1 2012

...SEVERE THUNDERSTORM WATCH 219 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

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.

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

   SEVERE THUNDERSTORM WATCH.

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

STRONG STORMS WILL BE POSSIBLE AGAIN DURING THE DAY WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

NCZ001-002-018-VAZ007-009>020-022>024-WVZ042>045-021930-
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-
325 PM EDT TUE MAY 1 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

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

STRONG STORMS WILL BE POSSIBLE AGAIN DURING THE DAY WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, May 1, 5:50 PM EDT, 1 hour 16 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
550 PM EDT TUE MAY 1 2012

VAZ032-012245-
PATRICK VA-
550 PM EDT TUE MAY 1 2012

...STRONG THUNDERSTORMS WILL AFFECT MUCH OF PATRICK COUNTY THROUGH
645 PM EDT...

AT 544 PM EDT...A BAND OF STRONG THUNDERSTORMS HAD DEVELOPED ACROSS
THE SOUTHERN HALF OF PATRICK COUNTY FROM GROUNDHOG MOUNTAIN...TO
STUART...TO CRITZ...MOVING EAST AT 15 MPH.

THIS STORM WILL BE CAPABLE OF PRODUCING PENNY TO NICKEL-SIZED HAIL.

THIS STORM WILL BE NEAR STUART AROUND 600 PM...CRITZ AROUND 625 PM
AND PENNS STORE AROUND 645 PM.

LAT...LON 3655 8051 3657 8058 3665 8056 3664 8055
      3666 8050 3665 8049 3669 8046 3670 8008
      3666 8006 3654 8005 3654 8034

RAB

Local storm report, May 1, 5:56 PM EDT, 1 hour 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
556 PM EDT TUE MAY 01 2012

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

0535 PM     HAIL             5 NNW ELKIN             36.33N 80.87W
05/01/2012  E0.75 INCH       SURRY              NC   PUBLIC

            PENNY SIZE HAIL COVERING THE GROUND IN STATE ROAD

&&

PW

Local storm report, May 1, 6:00 PM EDT, 1 hour 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
600 PM EDT TUE MAY 01 2012

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

0556 PM     HAIL             DOBSON                  36.39N 80.72W
05/01/2012  E0.50 INCH       SURRY              NC   TRAINED SPOTTER

            COVERING THE GROUND.

&&

MATTAROCHIA

Special weather statement, May 1, 6:13 PM EDT, 53 minutes before

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE BLACKSBURG VA
613 PM EDT TUE MAY 1 2012

VAZ032-012245-
PATRICK VA-
613 PM EDT TUE MAY 1 2012

...STRONG THUNDERSTORMS WILL AFFECT MUCH OF SOUTHERN PATRICK COUNTY
THROUGH 645 PM EDT...

AT 544 PM EDT...A BAND OF STRONG THUNDERSTORMS HAD DEVELOPED ACROSS
THE SOUTHERN HALF OF PATRICK COUNTY FROM GROUNDHOG MOUNTAIN...TO
STUART...TO CRITZ...MOVING EAST AT 15 MPH.

THIS STORM WILL BE CAPABLE OF PRODUCING PENNY TO NICKEL-SIZED HAIL.

THIS STORM WILL BE NEAR STUART AROUND 600 PM...CRITZ AROUND 625 PM
AND PENNS STORE AROUND 645 PM.

LAT...LON 3655 8051 3657 8058 3665 8056 3664 8055
      3666 8050 3665 8049 3669 8046 3670 8008
      3666 8006 3654 8005 3654 8034

RAB

Local storm report, May 1, 7:00 PM EDT, 6 minutes before

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Special weather statement, May 1, 7:06 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 9:59 PM EDT	Dense Fog Advisory	RNK	Amherst, Bedford, Botetourt, Campbell, Roanoke, Rockbridge and 5 more	9 hr
Apr 30, 11:19 PM EDT	Special Weather Statement	RNK	Henry, City of Martinsville	56 min
May 1, 2:57 AM EDT	Special Weather Statement	RNK	Alleghany, City of Covington	63 min
May 1, 2:58 AM EDT	Special Weather Statement	RNK	Alleghany, Bath, City of Covington	62 min
May 1, 3:44 AM EDT	Special Weather Statement	RNK	Bath	61 min
May 1, 4:45 AM EDT	Special Weather Statement	RNK	Amherst, City of Buena Vista, City of Lexington	60 min
May 1, 4:49 AM EDT	Special Weather Statement	RNK	Bedford, City of Lynchburg	56 min
May 1, 5:46 AM EDT	Special Weather Statement	RNK	Franklin, Pittsylvania	59 min
May 1, 12:34 PM EDT	Special Weather Statement	RNK	Tazewell	41 min
May 1, 12:39 PM EDT	Special Weather Statement	RNK	Bland	51 min
May 1, 1:52 PM EDT	Special Weather Statement	RNK	Floyd, Montgomery, Pulaski, City of Radford	53 min
May 1, 2:12 PM EDT	Special Weather Statement	RNK	Pittsylvania	33 min
May 1, 2:19 PM EDT	Special Weather Statement	RNK	Franklin	26 min
May 1, 2:27 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Floyd, Franklin, Pittsylvania	63 min
May 1, 3:02 PM EDT	Severe Thunderstorm Warning	RNK	Franklin, Henry, Pittsylvania	58 min
May 1, 3:14 PM EDT	Severe Thunderstorm Warning	RNK	Halifax, Pittsylvania	76 min
May 1, 3:28 PM EDT	Severe Thunderstorm Warning	RNK	Franklin, Henry, Patrick, Pittsylvania, City of Martinsville	62 min
May 1, 3:49 PM EDT	Special Weather Statement	RNK	Tazewell	56 min
May 1, 3:54 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte, Halifax, Pittsylvania	66 min
May 1, 5:50 PM EDT	Special Weather Statement	RNK	Patrick	55 min
May 1, 6:13 PM EDT	Special Weather Statement	RNK	Patrick	32 min
May 1, 6:18 PM EDT	Severe Thunderstorm Warning	RNK	City of Martinsville	35 min
Apr 30, 8:06 PM EDT	Special Weather Statement	RNK	Wilkes	54 min
Apr 30, 8:58 PM EDT	Special Weather Statement	RNK	Watauga	62 min
Apr 30, 9:51 PM EDT	Special Weather Statement	RNK	Wilkes	39 min
Apr 30, 10:03 PM EDT	Severe Thunderstorm Warning	RNK	Surry, Wilkes	42 min
Apr 30, 10:49 PM EDT	Severe Thunderstorm Warning	RNK	Surry	56 min
Apr 30, 11:24 PM EDT	Special Weather Statement	RNK	Rockingham	51 min
Apr 30, 11:50 PM EDT	Special Weather Statement	RNK	Stokes	40 min
May 1, 12:01 AM EDT	Special Weather Statement	RNK	Stokes	44 min
May 1, 2:30 PM EDT	Special Weather Statement	RNK	Surry	30 min
May 1, 2:37 PM EDT	Severe Thunderstorm Warning	RNK	Stokes, Surry	43 min
May 1, 3:18 PM EDT	Severe Thunderstorm Warning	RNK	Stokes, Surry	57 min
May 1, 3:40 PM EDT	Special Weather Statement	RNK	Wilkes	35 min
May 1, 3:47 PM EDT	Severe Thunderstorm Warning	RNK	Wilkes, Yadkin	58 min
May 1, 4:11 PM EDT	Severe Thunderstorm Warning	RNK	Stokes, Surry, Yadkin	35 min
May 1, 5:01 PM EDT	Severe Thunderstorm Warning	RNK	Yadkin	29 min
May 1, 5:22 PM EDT	Special Weather Statement	RNK	Caswell	23 min
May 1, 5:44 PM EDT	Special Weather Statement	RNK	Surry	61 min
May 1, 3:01 AM EDT	Special Weather Statement	RNK	Mercer, Monroe, Summers	59 min
May 1, 5:13 PM EDT	Special Weather Statement	RNK	Mercer	62 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.