Alert archive / Virginia / Special Weather Statements in 2012

Special Weather Statement, NWS Blacksburg, VA

May 3, 2012Wythe County, Virginia

NWS Blacksburg, VA issued this special weather statement at May 3, 2012, 3:28 PM EDT for Wythe County, Virginia. It was in force for 32 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 3, 2012, 3:28 PM EDT (19:28 UTC)
Expired: May 3, 2012, 4:00 PM EDT
In force: 32 min
Issued by: NWS Blacksburg, VA

County Wythe County, VA

The radar

The Roanoke radar (KFCX), 75 km from the middle of the area, began a volume at 19:30 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

Roanoke, VA (KRNK), launched 12:00Z, 7.5 hours before the alert went out and 146 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: 1044 J/kg
Mixed-layer CIN: -93 J/kg
Mixed-layer LCL: 1230 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 22 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 3, 2:29 PM EDT, 59 minutes earlier.

Area forecast discussion, May 3, 2:29 PM EDT, 59 minutes before

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Hazardous weather outlook, May 3, 4:43 AM EDT, 10 hours 45 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
443 AM EDT THU MAY 3 2012

NCZ001>006-018>020-VAZ007-009>020-022>024-032>035-043>047-058-059-
WVZ042>045-040845-
ASHE-ALLEGHANY NC-SURRY-STOKES-ROCKINGHAM-CASWELL-WATAUGA-WILKES-
YADKIN-TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-MONTGOMERY-GRAYSON-
CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-ROANOKE-BOTETOURT-ROCKBRIDGE-
PATRICK-FRANKLIN-BEDFORD-AMHERST-HENRY-PITTSYLVANIA-CAMPBELL-
APPOMATTOX-BUCKINGHAM-HALIFAX-CHARLOTTE-MERCER-SUMMERS-MONROE-
GREENBRIER-
443 AM EDT THU MAY 3 2012

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

.DAY ONE...TODAY AND TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

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

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, May 3, 1:11 PM EDT, 2 hours 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
111 PM EDT THU MAY 3 2012

VAZ009-015-031745-
SMYTH VA-GRAYSON VA-
111 PM EDT THU MAY 3 2012

AT 110 PM EDT...DOPPLER RADAR INDICATED A NEARLY STATIONARY
THUNDERSTORM LOCATED NEAR WEST OF TROUTDALE. VERY HEAVY
RAIN...FREQUENT LIGHTNING...AND HAIL UP TO THE SIZE OF PENNIES IS
POSSIBLE WITH THIS STORM. THE STORM IS MOVING VERY SLOWLY NORTHEAST.

LAT...LON 3676 8144 3662 8133 3658 8150 3667 8156

DS

Special weather statement, May 3, 1:16 PM EDT, 2 hours 12 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
116 PM EDT THU MAY 3 2012

NCZ001-031745-
ASHE NC-
116 PM EDT THU MAY 3 2012

AT 115 PM EDT...DOPPLER RADAR INDICATED A NEARLY STATIONARY
THUNDERSTORM NEAR CLIFTON. VERY HEAVY RAIN...FREQUENT LIGHTNING AND
SMALL HAIL ARE POSSIBLE WITH THIS STORM. IT WILL MOVE SLOWLY
NORTHEAST.

LAT...LON 3652 8155 3645 8147 3641 8158 3645 8162

DS

Special weather statement, May 3, 1:51 PM EDT, 1 hour 37 minutes before

SPECIAL WEATHER STATEMENTNATIONAL WEATHER SERVICE BLACKSBURG VA151
PM EDT THU MAY 3 2012

NCZ001-002-VAZ009-015-031830-
ALLEGHANY NC-ASHE NC-SMYTH VA-GRAYSON VA-
151 PM EDT THU MAY 3 2012

AT 150 PM EDT...DOPPLER RADAR INDICATED A CLUSTER OF SLOWLY MOVING
THUNDERSTORMS OVER THE HIGHER ELEVATIONS OF NORTHWEST NORTH CAROLINA
AND THE MOUNT ROGERS AREA OF FAR SOUTHWEST VIRGINIA. THESE STORMS
WILL PRODUCE VERY HEAVY RAINFALL...AS WELL AS SMALL HAIL AND WIND
GUSTS AS HIGH AS 40 MPH. THEY ARE MOVING NORTHEAST AT ABOUT 10 TO 15
MPH. SOME AREAS IMPACTED INCLUDE MOUNT ROGERS...GRAYSON HIGHLANDS
STATE PARK...LANSING...AND VOLNEY THROUGH 230 PM.

LAT...LON 3661 8164 3663 8160 3665 8163 3670 8162
      3675 8125 3657 8101 3631 8145 3637 8164
      3659 8167

SK

Special weather statement, May 3, 2:31 PM EDT, 57 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
231 PM EDT THU MAY 3 2012

NCZ001-002-018-031900-
WATAUGA NC-ALLEGHANY NC-ASHE NC-
231 PM EDT THU MAY 3 2012

...SLOW MOVING THUNDERSTORMS OVER ASHE COUNTY...

A NEARLY STATIONARY THUNDERSTORMS FROM SHATLEY SPRINGS SOUTHWEST TO
ASHLAND...COULD PRODUCE PEA SIZED HAIL ALONG WITH AN INCH OR TWO OF
RAIN IN 30 MINUTES.

LAT...LON 3647 8169 3658 8167 3654 8132 3633 8163
      3643 8172

Special weather statement, May 3, 3:19 PM EDT, 9 minutes before

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Special weather statement, May 3, 3:28 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
328 PM EDT THU MAY 3 2012

VAZ012-015-016-032000-
CARROLL VA-GRAYSON VA-WYTHE VA-
328 PM EDT THU MAY 3 2012

...STRONG THUNDERSTORM OVER SPEEDWELL...

WINDS MAY GUST TO 50 MPH AND HAIL THE SIZE OF DIMES IS EXPECTED. THE
STORM WAS MOVING TO THE EAST NORTHEAST AT 10 MPH.

LAT...LON 3688 8101 3676 8096 3674 8119 3682 8122

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 1:11 PM EDT	Special Weather Statement	RNK	Grayson	34 min
May 3, 1:51 PM EDT	Special Weather Statement	RNK	Grayson	39 min
May 3, 2:54 PM EDT	Severe Thunderstorm Warning	RNK	Grayson	36 min
May 3, 3:19 PM EDT	Special Weather Statement	RNK	Floyd	26 min
May 3, 3:37 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Grayson, Wythe	53 min
May 3, 3:41 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Floyd	34 min
May 3, 3:43 PM EDT	Special Weather Statement	RNK	Pulaski	32 min
May 3, 4:10 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Giles, Pulaski	65 min
May 3, 4:14 PM EDT	Special Weather Statement	RNK	Floyd	31 min
May 3, 4:28 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Floyd, Montgomery, Pulaski, Wythe, City of Radford	51 min
May 3, 4:36 PM EDT	Severe Thunderstorm Warning	RNK	Giles	39 min
May 3, 5:15 PM EDT	Special Weather Statement	RNK	Floyd	30 min
May 3, 6:28 PM EDT	Special Weather Statement	RNK	Franklin	32 min
May 3, 6:32 PM EDT	Special Weather Statement	RNK	Botetourt	28 min
May 3, 6:41 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Franklin, Pittsylvania	48 min
May 3, 6:48 PM EDT	Special Weather Statement	RNK	Botetourt	27 min
May 3, 6:52 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Amherst, Botetourt, Rockbridge, City of Buena Vista, City of Lexington	28 min
May 3, 7:02 PM EDT	Special Weather Statement	RNK	Bedford	28 min
May 3, 7:57 PM EDT	Special Weather Statement	RNK	Pittsylvania	33 min
May 3, 1:16 PM EDT	Special Weather Statement	RNK	Ashe	29 min
May 3, 2:31 PM EDT	Special Weather Statement	RNK	Ashe	29 min
May 3, 6:57 PM EDT	Special Weather Statement	RNK	Greenbrier	33 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.