Alert archive / Virginia / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 263, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at Jul 14, 2012, 3:28 PM EDT for 4 counties in Virginia. It was in force for 50 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
- Jul 14, 2012, 3:28 PM EDT (19:28 UTC)
- Expired
- Jul 14, 2012, 4:18 PM EDT
- In force
- 50 min
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
Counties Alleghany County, VA, Botetourt County, VA, Craig County, VA, Rockbridge County, VA
The radar
The Roanoke radar (KFCX), 84 km from the middle of the area, began a volume at 19:31 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 53 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.
- Mixed-layer CAPE
- 381 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 561 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
862
WUUS51 KRNK 141928
SVRRNK
VAC005-023-045-163-142030-
/O.NEW.KRNK.SV.W.0263.120714T1928Z-120714T2030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
328 PM EDT SAT JUL 14 2012
THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN ROCKBRIDGE COUNTY IN WEST CENTRAL VIRGINIA
NORTHEASTERN CRAIG COUNTY IN SOUTHWEST VIRGINIA
NORTHERN BOTETOURT COUNTY IN WEST CENTRAL VIRGINIA
SOUTHEASTERN ALLEGHANY COUNTY IN WEST CENTRAL VIRGINIA
* UNTIL 430 PM EDT.
* AT 326 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING ONE INCH DIAMETER HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED
NEAR EAGLE ROCK...AND MOVING NORTHEAST AT 25 MPH.
* LOCATIONS IMPACTED INCLUDE...
EAGLE ROCK...
NATURAL BRIDGE...
COLLIERSTOWN...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
LARGE HAIL AND...OR STRONG DAMAGING WINDS ARE LIKELY WITH THIS STORM.
IN ADDITION...TORRENTIAL RAINS MAY FLOOD LOW LYING AREAS SUCH AS
DITCHES AND UNDERPASSES. DO NOT DRIVE INTO AREAS WHERE WATER COVERS
THE ROAD!
WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF QUARTER OR
LARGER SIZED HAIL...AS WELL AS WIND DAMAGE...INCLUDING TREES OR LARGE
LIMBS DOWNED BY CALLING THE NATIONAL WEATHER SERVICE TOLL FREE AT...
1...8 6 6...2 1 5...4 3 2 4.
&&
LAT...LON 3756 7945 3749 8000 3763 8007 3774 7993
3788 7951
TIME...MOT...LOC 1929Z 247DEG 21KT 3762 7983
$$3 follow-up statements
139
WWUS51 KRNK 141935
SVSRNK
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
335 PM EDT SAT JUL 14 2012
VAC005-141946-
/O.CAN.KRNK.SV.W.0263.000000T0000Z-120714T2030Z/
ALLEGHANY VA-
335 PM EDT SAT JUL 14 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ALLEGHANY COUNTY
IS CANCELLED...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
&&
LAT...LON 3777 7969 3777 7967 3756 7956 3749 8000
3763 8007 3770 7989 3777 7971
TIME...MOT...LOC 1936Z 244DEG 8KT 3763 7986
$$
VAC023-045-163-142030-
/O.CON.KRNK.SV.W.0263.000000T0000Z-120714T2030Z/
ROCKBRIDGE VA-CRAIG VA-BOTETOURT VA-
335 PM EDT SAT JUL 14 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR SOUTHWESTERN ROCKBRIDGE...NORTHEASTERN CRAIG AND NORTHERN
BOTETOURT COUNTIES...
AT 331 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING ONE INCH DIAMETER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR EAGLE ROCK...MOVING NORTHEAST AT 10 MPH.
LOCATIONS IMPACTED INCLUDE...
ORISKANY...
EAGLE ROCK...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
LARGE HAIL AND...OR STRONG DAMAGING WINDS ARE LIKELY WITH THIS STORM.
IN ADDITION...TORRENTIAL RAINS MAY FLOOD LOW LYING AREAS SUCH AS
DITCHES AND UNDERPASSES. TURN AROUND DONT DROWN!
TO REPORT SEVERE WEATHER...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN BLACKSBURG AT...1...8 6 6...2 1 5...4 3 2 4...WHEN YOU CAN
DO SO SAFELY. ONCE AGAIN THAT NUMBER IS 1...8 6 6...2 1 5...4 3 2 4.
&&
LAT...LON 3777 7969 3777 7967 3756 7956 3749 8000
3763 8007 3770 7989 3777 7971
TIME...MOT...LOC 1936Z 244DEG 8KT 3763 7986
$$001 WWUS51 KRNK 141944 SVSRNK SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BLACKSBURG VA 344 PM EDT SAT JUL 14 2012 VAC163-141954- /O.CAN.KRNK.SV.W.0263.000000T0000Z-120714T2030Z/ ROCKBRIDGE VA- 344 PM EDT SAT JUL 14 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN ROCKBRIDGE COUNTY IS CANCELLED... PRECAUTIONARY/PREPAREDNESS ACTIONS... && LAT...LON 3762 7966 3749 8000 3763 8007 3775 7976 TIME...MOT...LOC 1944Z 244DEG 8KT 3764 7984 $$ VAC023-045-142030- /O.CON.KRNK.SV.W.0263.000000T0000Z-120714T2030Z/ CRAIG VA-BOTETOURT VA- 344 PM EDT SAT JUL 14 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT FOR NORTHEASTERN CRAIG AND NORTHERN BOTETOURT COUNTIES... AT 340 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING ONE INCH DIAMETER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR EAGLE ROCK...MOVING NORTHEAST AT 10 MPH. PRECAUTIONARY/PREPAREDNESS ACTIONS... LARGE HAIL AND...OR STRONG DAMAGING WINDS ARE LIKELY WITH THIS STORM. IN ADDITION...TORRENTIAL RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES. TURN AROUND DONT DROWN! TO REPORT SEVERE WEATHER...PLEASE CONTACT THE NATIONAL WEATHER SERVICE IN BLACKSBURG AT...1...8 6 6...2 1 5...4 3 2 4...WHEN YOU CAN DO SO SAFELY. ONCE AGAIN THAT NUMBER IS 1...8 6 6...2 1 5...4 3 2 4. && LAT...LON 3762 7966 3749 8000 3763 8007 3775 7976 TIME...MOT...LOC 1944Z 244DEG 8KT 3764 7984 $$
849 WWUS51 KRNK 142018 SVSRNK SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BLACKSBURG VA 418 PM EDT SAT JUL 14 2012 VAC023-045-142028- /O.CAN.KRNK.SV.W.0263.000000T0000Z-120714T2030Z/ CRAIG VA-BOTETOURT VA- 418 PM EDT SAT JUL 14 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CRAIG AND NORTHERN BOTETOURT COUNTIES IS CANCELLED... THE SEVERE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED AND EXITED THE WARNED AREA. THEREFORE...THE WARNING HAS BEEN CANCELLED. TO REPORT SEVERE WEATHER...PLEASE CONTACT THE NATIONAL WEATHER SERVICE IN BLACKSBURG AT...1 8 6 6...2 1 5...4 3 2 4. LAT...LON 3762 7966 3749 8000 3763 8007 3775 7976 TIME...MOT...LOC 2018Z 244DEG 8KT 3767 7975 $$ PH
The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 8:07 PM EDT | Special Weather Statement | RNK | Halifax | 53 min |
| Jul 13, 8:59 PM EDT | Special Weather Statement | RNK | Halifax | 61 min |
| Jul 13, 9:25 PM EDT | Special Weather Statement | RNK | Pittsylvania | 65 min |
| Jul 13, 9:34 PM EDT | Special Weather Statement | RNK | Charlotte | 56 min |
| Jul 14, 11:52 AM EDT | Flash Flood Watch | RNK | Amherst, Appomattox, Bedford, Botetourt, Buckingham, Campbell and 19 more | 9 hr |
| Jul 14, 2:23 PM EDT | Special Weather Statement | RNK | Pittsylvania | 37 min |
| Jul 14, 2:44 PM EDT | Special Weather Statement | RNK | Henry, City of Martinsville | 31 min |
| Jul 14, 2:50 PM EDT | Special Weather Statement | RNK | Halifax | 40 min |
| Jul 14, 3:02 PM EDT | Areal Flood Advisory | RNK | Grayson, Smyth | 3 hr |
| Jul 14, 3:23 PM EDT | Special Weather Statement | RNK | Botetourt | 52 min |
| Jul 14, 3:45 PM EDT | Special Weather Statement | RNK | Craig | 30 min |
| Jul 14, 4:26 PM EDT | Special Weather Statement | RNK | Bath | 64 min |
| Jul 14, 5:25 PM EDT | Special Weather Statement | RNK | Bath | 65 min |
| Jul 14, 5:57 PM EDT | Special Weather Statement | RNK | Craig | 63 min |
Nearby
Severe Thunderstorm Warnings in Virginia, 2012Every severe thunderstorm warning 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.