Alert archive / Virginia / Special Weather Statements in 2012

Special Weather Statement, NWS Blacksburg, VA

May 31, 2012Botetourt County, Virginia

NWS Blacksburg, VA issued this special weather statement at May 31, 2012, 8:21 PM EDT for Botetourt County, Virginia. It was in force for 24 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 31, 2012, 8:21 PM EDT (00:21 UTC)
Expired: May 31, 2012, 8:45 PM EDT
In force: 24 min
Issued by: NWS Blacksburg, VA

County Botetourt County, VA

The radar

The Roanoke radar (KFCX), 75 km from the middle of the area, began a volume at 00:22 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 00:00Z, 0.4 hours before the alert went out and 54 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: 718 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 822 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: -40 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.

899 
WWUS81 KRNK 010021
SPSRNK

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
821 PM EDT THU MAY 31 2012

VAZ023-010045-
BOTETOURT VA-
821 PM EDT THU MAY 31 2012

...A STRONG THUNDERSTORM WILL AFFECT BOTETOURT COUNTY...

AT 818 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 7 MILES SOUTHEAST
OF ORISKANY...MOVING NORTHEAST AT 20 MPH.

WIND GUSTS TO 30 MPH AND PEA-SIZED HAIL ARE POSSIBLE WITH THIS STORM.
VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.
EXPECT FREQUENT CLOUD TO GROUND LIGHTNING FROM THIS STORM. DO NOT
STAY IN THE OPEN OR SEEK SHELTER UNDER TREES WHEN LIGHTNING
THREATENS...MOVE INDOORS WHEN A THUNDERSTORM APPROACHES. 

THIS STORM WILL BE NEAR EAGLE ROCK AROUND 840 PM.

LAT...LON 3769 7981 3762 7972 3750 7991 3753 7995

$$

DS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 1, 1:00 PM EDT	Special Weather Statement	RNK	City of Lynchburg	30 min
Jun 1, 1:18 PM EDT	Special Weather Statement	RNK	Bland, Smyth, Tazewell	117 min
Jun 1, 1:29 PM EDT	Special Weather Statement	RNK	Amherst	31 min
Jun 1, 1:40 PM EDT	Severe Thunderstorm Warning	RNK	Amherst	38 min
Jun 1, 1:53 PM EDT	Tornado Warning	RNK	Amherst	24 min
Jun 1, 2:33 PM EDT	Special Weather Statement	RNK	Bedford	27 min
Jun 1, 2:48 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Appomattox, Buckingham, Campbell	24 min
Jun 1, 2:56 PM EDT	Special Weather Statement	RNK	Appomattox	34 min
Jun 1, 3:05 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Appomattox, Bedford, Campbell, City of Lynchburg	35 min
Jun 1, 3:16 PM EDT	Special Weather Statement	RNK	Bland, Grayson, Smyth, Tazewell, Wythe	29 min
Jun 1, 3:28 PM EDT	Special Weather Statement	RNK	Buckingham	32 min
Jun 1, 3:45 PM EDT	Special Weather Statement	RNK	Bland, Grayson, Wythe	30 min
Jun 1, 3:46 PM EDT	Severe Thunderstorm Warning	RNK	Buckingham	44 min
Jun 1, 4:00 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Charlotte	30 min
Jun 1, 4:14 PM EDT	Special Weather Statement	RNK	Carroll, Giles, Pulaski, City of Galax, City of Radford	31 min
Jun 1, 4:25 PM EDT	Special Weather Statement	RNK	Bedford	65 min
Jun 1, 4:32 PM EDT	Special Weather Statement	RNK	Bedford	58 min
Jun 1, 4:36 PM EDT	Special Weather Statement	RNK	Buckingham	24 min
Jun 1, 4:44 PM EDT	Special Weather Statement	RNK	Craig, Montgomery, Roanoke, City of Radford	31 min
Jun 1, 4:45 PM EDT	Special Weather Statement	RNK	Carroll	30 min
Jun 1, 4:46 PM EDT	Special Weather Statement	RNK	Floyd	29 min
Jun 1, 4:58 PM EDT	Special Weather Statement	RNK	Halifax	32 min
Jun 1, 5:08 PM EDT	Tornado Warning	RNK	Amherst, Rockbridge, City of Buena Vista, City of Lexington	40 min
Jun 1, 5:13 PM EDT	Special Weather Statement	RNK	Craig, Roanoke, City of Roanoke, City of Salem	32 min
Jun 1, 5:15 PM EDT	Special Weather Statement	RNK	Botetourt	30 min
Jun 1, 5:38 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Botetourt, Roanoke, City of Roanoke	37 min
Jun 1, 5:52 PM EDT	Special Weather Statement	RNK	Rockbridge, City of Buena Vista, City of Lexington	38 min
Jun 1, 6:02 PM EDT	Special Weather Statement	RNK	Patrick	28 min
Jun 1, 6:14 PM EDT	Special Weather Statement	RNK	Amherst, Bedford, Campbell, City of Lynchburg	31 min
Jun 1, 6:17 PM EDT	Special Weather Statement	RNK	Henry, City of Martinsville	28 min
Jun 1, 6:44 PM EDT	Special Weather Statement	RNK	City of Martinsville	31 min
Jun 1, 7:13 PM EDT	Special Weather Statement	RNK	City of Danville	32 min
Jun 1, 7:27 PM EDT	Special Weather Statement	RNK	Buckingham	33 min
Jun 1, 7:44 PM EDT	Special Weather Statement	RNK	Halifax	31 min
Jun 1, 3:01 PM EDT	Special Weather Statement	RNK	Stokes	29 min
Jun 1, 3:17 PM EDT	Special Weather Statement	RNK	Greenbrier	28 min
Jun 1, 3:46 PM EDT	Special Weather Statement	RNK	Greenbrier	29 min
Jun 1, 4:16 PM EDT	Special Weather Statement	RNK	Greenbrier	29 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.