Alert archive / Virginia / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 85, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at May 2, 2012, 6:26 PM EDT for Patrick County, Virginia. It was in force for 26 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 2, 2012, 6:26 PM EDT (22:26 UTC)
- Expired
- May 2, 2012, 6:52 PM EDT
- In force
- 26 min
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
County Patrick County, VA
The radar
The Roanoke radar (KFCX), 25 km from the middle of the area, began a volume at 22:26 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 2, 6:38 PM EDT | HAIL 0.88 | 4 Wnw Fairy Stone State, VA | HEIDELBACH SCHOOL ROAD |
| May 2, 6:38 PM EDT | HAIL 1.25 | 3 Wnw Fairy Stone State, VA | HEIDELBACH SCHOOL ROAD |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Roanoke, VA (KRNK), launched 12:00Z, 10.4 hours before the alert went out and 80 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
- 727 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 813 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
The text
As transmitted, in the capitals the NWS used until 2016.
800
WUUS51 KRNK 022226
SVRRNK
VAC141-022330-
/O.NEW.KRNK.SV.W.0085.120502T2226Z-120502T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
626 PM EDT WED MAY 2 2012
THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN PATRICK COUNTY IN SOUTHWEST VIRGINIA
* UNTIL 730 PM EDT.
* AT 622 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED NEAR CHARITY...OR 6 MILES EAST OF WOOLWINE...AND
MOVING EAST AT 5 MPH.
* LOCATIONS IMPACTED INCLUDE...
CHARITY...
FAIRY STONE STATE PARK...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL...FREQUENT CLOUD TO GROUND LIGHTNING IS
OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! LIGHTNING IS
ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.
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 3678 8039 3680 8038 3682 8034 3684 8034
3683 8033 3687 8025 3684 8007 3683 8008
3680 8004 3678 8010 3673 8009 3670 8035
TIME...MOT...LOC 2226Z 251DEG 6KT 3680 8017
$$
RAB2 follow-up statements
261
WWUS51 KRNK 022244
SVSRNK
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
644 PM EDT WED MAY 2 2012
VAC141-022330-
/O.CON.KRNK.SV.W.0085.000000T0000Z-120502T2330Z/
PATRICK VA-
644 PM EDT WED MAY 2 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR EXTREME NORTHEASTERN PATRICK COUNTY...
AT 639 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL. THIS STORM WAS LOCATED NEAR FAIRY STONE STATE PARK...OR 8
MILES EAST OF WOOLWINE...MOVING EAST AT 10 MPH.
LOCATIONS IMPACTED INCLUDE...
FAIRY STONE STATE PARK...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPORT SEVERE WEATHER...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN BLACKSBURG AT...1...8 6 6...2 1 5...4 3 2 4...WHEN YOU CAN
DO SO SAFELY. ONCE AGAIN THAT NUMBER IS 1...8 6 6...2 1 5...4 3 2 4.
&&
LAT...LON 3674 8011 3677 8013 3681 8018 3686 8020
3684 8007 3683 8008 3680 8004 3678 8010
3673 8009
TIME...MOT...LOC 2243Z 256DEG 7KT 3681 8013
$$
RAB126
WWUS51 KRNK 022252
SVSRNK
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
652 PM EDT WED MAY 2 2012
VAC141-022301-
/O.CAN.KRNK.SV.W.0085.000000T0000Z-120502T2330Z/
PATRICK VA-
652 PM EDT WED MAY 2 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PATRICK COUNTY IS
CANCELLED...
THE THUNDERSTORM THAT EARLIER PROMPTED THE WARNING FOR PATRICK
COUNTY HAS WEAKENED BELOW SEVERE LIMITS. LIGHT TO MODERATE RAIN AND
OCCASIONAL LIGHTNING WILL CONTINUE ACROSS NORTHEAST PATRICK COUNTY
FOR ANOTHER 30 MINUTES OR SO.
LAT...LON 3674 8011 3677 8013 3681 8018 3686 8020
3684 8007 3683 8008 3680 8004 3678 8010
3673 8009
TIME...MOT...LOC 2251Z 251DEG 6KT 3681 8012
$$
RABThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 8:00 PM EDT | Special Weather Statement | RNK | Floyd | 30 min |
| May 2, 5:13 PM EDT | Special Weather Statement | RNK | City of Martinsville | 62 min |
| May 2, 5:16 PM EDT | Severe Thunderstorm Warning | RNK | Henry, Patrick, City of Martinsville | 59 min |
| May 2, 6:41 PM EDT | Special Weather Statement | RNK | Bedford | 49 min |
| May 2, 7:03 PM EDT | Severe Thunderstorm Warning | RNK | Bedford | 42 min |
| May 2, 7:09 PM EDT | Special Weather Statement | RNK | Rockbridge | 36 min |
| May 2, 7:46 PM EDT | Severe Thunderstorm Warning | RNK | Bedford | 59 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.