Alert archive / West Virginia / Special Weather Statements in 2012

Special Weather Statement, NWS Blacksburg, VA

March 19, 2012Greenbrier County, West Virginia

NWS Blacksburg, VA issued this special weather statement at Mar 19, 2012, 2:53 AM EDT for Greenbrier County, West Virginia. It was in force for 37 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
Mar 19, 2012, 2:53 AM EDT (06:53 UTC)
Expired
Mar 19, 2012, 3:30 AM EDT
In force
37 min
Issued by
NWS Blacksburg, VA

County Greenbrier County, WV

The radar

The Roanoke radar (KFCX), 118 km from the middle of the area, began a volume at 06:55 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, 6.9 hours before the alert went out and 116 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-pSkew-T log-p diagram, Roanoke, VA at 00:00Z on 2012-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 242 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 00:00Z on 2012-03-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
242 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
757 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
139 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 Mar 19, 1:02 AM EDT, 1 hour 51 minutes earlier.

Area forecast discussion, Mar 19, 1:02 AM EDT, 1 hour 51 minutes before
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Hazardous weather outlook, Mar 18, 3:44 PM EDT, 11 hours 9 minutes before
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In the hours before

Special weather statement, Mar 19, 2:53 AM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
253 AM EDT MON MAR 19 2012

WVZ045-190730-
GREENBRIER WV-
253 AM EDT MON MAR 19 2012

...A STRONG THUNDERSTORM WILL AFFECT GREENBRIER COUNTY...

AT 251 AM EDT...A STRONG THUNDERSTORM WAS LOCATED 5 MILES SOUTHEAST
OF RICHWOOD...MOVING SOUTHEAST AT 35 MPH.

WIND GUSTS TO 30 MPH AND HAIL UP TO DIME SIZE ARE POSSIBLE WITH THIS
STORM.

THIS STORM WILL BE NEAR LEONARD AROUND 300 AM...BEARTOWN STATE PARK
AROUND 315 AM AND NEOLA AROUND 330 AM.

LAT...LON 3820 8035 3811 8035 3805 8026 3804 8016
      3806 8011 3807 7996 3805 7996 3803 7997
      3800 8000 3789 8014 3818 8057 3824 8048

16

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 19, 4:08 AM EDTSpecial Weather StatementRNKCity of Buena Vista37 min
Mar 19, 5:31 AM EDTSpecial Weather StatementRNKRockbridge, City of Buena Vista, City of Lexington29 min
Mar 19, 6:20 AM EDTSpecial Weather StatementRNKAlleghany40 min
Mar 19, 6:47 AM EDTSpecial Weather StatementRNKAlleghany, Bath, City of Covington58 min
Mar 19, 7:32 AM EDTSpecial Weather StatementRNKAlleghany, Bath, City of Covington58 min
Mar 19, 6:08 PM EDTSpecial Weather StatementRNKRockbridge37 min
Mar 19, 6:39 PM EDTSpecial Weather StatementRNKCity of Buena Vista51 min
Mar 19, 6:49 PM EDTSpecial Weather StatementRNKCity of Covington41 min
Mar 19, 6:59 PM EDTSevere Thunderstorm WarningRNKAmherst, Rockbridge46 min
Mar 19, 4:47 AM EDTSpecial Weather StatementRNKGreenbrier28 min
Mar 19, 7:21 AM EDTAreal Flood AdvisoryRNKGreenbrier4 hr

Nearby

Special Weather Statements in West Virginia, 2012Every 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.