Alert archive / Virginia / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 101, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at May 15, 2012, 6:57 PM EDT for 4 counties in Virginia. It was in force for 63 min. 3 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 15, 2012, 6:57 PM EDT (22:57 UTC)
- Expired
- May 15, 2012, 8:00 PM EDT
- In force
- 63 min
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
Counties Bedford County, VA, Campbell County, VA, Franklin County, VA, Pittsylvania County, VA
The radar
The Roanoke radar (KFCX), 70 km from the middle of the area, began a volume at 22:56 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 15, 7:01 PM EDT | HAIL 0.5 | 4 S Northwest Smith Mou, VA | DIME SIZE HAIL AT THE DAIRY QUEEN ALONG SCRUGGS ROAD |
| May 15, 7:02 PM EDT | HAIL 0.88 | 3 N Western Smith Mount, VA | |
| May 15, 7:24 PM EDT | TSTM WND DMG | 4 Nne Western Smith Mou, VA | ONE TREE DOWN ON GUILFORD 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, 11.0 hours before the alert went out and 2 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
- 54 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 511 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
598 WUUS51 KRNK 152257 SVRRNK VAC019-031-067-143-160000- /O.NEW.KRNK.SV.W.0101.120515T2257Z-120516T0000Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BLACKSBURG VA 657 PM EDT TUE MAY 15 2012 THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN PITTSYLVANIA COUNTY IN SOUTH CENTRAL VIRGINIA NORTHEASTERN FRANKLIN COUNTY IN WEST CENTRAL VIRGINIA SOUTHWESTERN CAMPBELL COUNTY IN CENTRAL VIRGINIA SOUTHERN BEDFORD COUNTY IN SOUTH CENTRAL VIRGINIA * UNTIL 800 PM EDT. * AT 652 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 SMITH MOUNTAIN LAKE STATE PARK...OR 7 MILES SOUTH OF MONETA... AND MOVING NORTHEAST AT 10 MPH. * LOCATIONS IMPACTED INCLUDE... SOUTHERN SMITH MOUNTAIN LAKE... SMITH MOUNTAIN LAKE STATE PARK... MONETA... HUDDLESTON... LEESVILLE... PRECAUTIONARY/PREPAREDNESS ACTIONS... INTENSE RAIN AND STRONG DAMAGING WINDS ARE LIKELY FROM THIS STORM. TAKE COVER IN A STURDY STRUCTURE UNTIL THE STORM PASSES. IF ON OR NEAR SMITH MOUNTAIN LAKE...GET OUT OF THE WATER AND MOVE INDOORS OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 15 MILES FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW. DON'T BE CAUGHT ON THE WATER IN A THUNDERSTORM! 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 3734 7938 3710 7923 3697 7970 3715 7983 TIME...MOT...LOC 2257Z 245DEG 10KT 3710 7964 $$ JH
2 follow-up statements
249 WWUS51 KRNK 152325 SVSRNK SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BLACKSBURG VA 725 PM EDT TUE MAY 15 2012 VAC019-031-067-143-160000- /O.CON.KRNK.SV.W.0101.000000T0000Z-120516T0000Z/ PITTSYLVANIA VA-FRANKLIN VA-CAMPBELL VA-BEDFORD VA- 725 PM EDT TUE MAY 15 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT FOR NORTHERN PITTSYLVANIA...NORTHEASTERN FRANKLIN...SOUTHWESTERN CAMPBELL AND SOUTHERN BEDFORD COUNTIES... AT 724 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING ONE INCH DIAMETER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM MONETA TO WESTERN SMITH MOUNTAIN LAKE...OR ALONG A LINE EXTENDING FROM MONETA TO 9 MILES NORTHWEST OF PENHOOK...MOVING NORTHEAST AT 5 MPH. LOCATIONS IMPACTED INCLUDE... WESTERN SMITH MOUNTAIN LAKE... SOUTHERN SMITH MOUNTAIN LAKE... SMITH MOUNTAIN LAKE STATE PARK... PRECAUTIONARY/PREPAREDNESS ACTIONS... LARGE HAIL AND...OR STRONG DAMAGING WINDS ARE LIKELY WITH THIS STORM. IN ADDITION...TORRENTIAL RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES. TURN AROUND DONT DROWN! IF ON OR NEAR SMITH MOUNTAIN LAKE...GET OUT OF THE WATER AND MOVE INDOORS OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 15 MILES FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW. DON'T BE CAUGHT ON THE WATER IN A THUNDERSTORM! TO REPORT SEVERE WEATHER...PLEASE CONTACT THE NATIONAL WEATHER SERVICE IN BLACKSBURG AT...1...8 6 6...2 1 5...4 3 2 4...WHEN YOU CAN DO SO SAFELY. ONCE AGAIN THAT NUMBER IS 1...8 6 6...2 1 5...4 3 2 4. && LAT...LON 3734 7938 3710 7923 3697 7970 3715 7983 TIME...MOT...LOC 2325Z 243DEG 5KT 3716 7959 3707 7975 $$ WERT
828 WWUS51 KRNK 160003 SVSRNK SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BLACKSBURG VA 803 PM EDT TUE MAY 15 2012 VAC019-031-067-143-160013- /O.EXP.KRNK.SV.W.0101.000000T0000Z-120516T0000Z/ PITTSYLVANIA VA-FRANKLIN VA-CAMPBELL VA-BEDFORD VA- 803 PM EDT TUE MAY 15 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN PITTSYLVANIA... NORTHEASTERN FRANKLIN...SOUTHWESTERN CAMPBELL AND SOUTHERN BEDFORD COUNTIES EXPIRED AT 800 PM EDT... THE SEVERE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS. THUS THE WARNING WAS ALLOWED TO EXPIRE. TO REPORT SEVERE WEATHER...PLEASE CONTACT THE NATIONAL WEATHER SERVICE IN BLACKSBURG AT...1...8 6 6...2 1 5...4 3 2 4. ONCE AGAIN THAT NUMBER IS 1...8 6 6...2 1 5...4 3 2 4. LAT...LON 3734 7938 3710 7923 3697 7970 3715 7983 TIME...MOT...LOC 2325Z 243DEG 5KT 3716 7959 3707 7975 $$ WERT
The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 14, 8:02 PM EDT | Special Weather Statement | RNK | Bedford | 28 min |
| May 14, 8:41 PM EDT | Flash Flood Warning | RNK | Bedford, Franklin | 5 hr |
| May 14, 8:55 PM EDT | Areal Flood Warning | RNK | Amherst, Bedford, Rockbridge, City of Buena Vista, City of Lexington | 6 hr |
| May 14, 9:10 PM EDT | Special Weather Statement | RNK | Bland | 35 min |
| May 14, 9:16 PM EDT | Flash Flood Warning | RNK | Bland, Giles | 4 hr |
| May 14, 9:23 PM EDT | Flash Flood Warning | RNK | Amherst, Bedford, Botetourt, Rockbridge, City of Buena Vista, City of Lexington | 6 hr |
| May 15, 1:27 AM EDT | Areal Flood Advisory | RNK | Bedford, Franklin | 6 hr |
| May 15, 1:39 AM EDT | Areal Flood Warning | RNK | Bedford, Franklin | 6 hr |
| May 15, 3:15 AM EDT | Areal Flood Warning | RNK | Botetourt, Rockbridge, City of Buena Vista, City of Lexington | 6 hr |
| May 15, 5:39 AM EDT | Flash Flood Watch | RNK | Amherst, Bedford, Botetourt, Carroll, Floyd, Franklin and 8 more | 17 hr |
| May 15, 6:19 AM EDT | Dense Fog Advisory | RNK | Bland, Carroll, Floyd, Giles, Grayson, Montgomery and 6 more | 4 hr |
| May 15, 1:11 PM EDT | Special Weather Statement | RNK | City of Galax | 64 min |
| May 15, 4:57 PM EDT | Flash Flood Warning | RNK | Grayson | 5 hr |
| May 15, 5:43 PM EDT | Special Weather Statement | RNK | Grayson | 62 min |
| May 15, 5:47 PM EDT | Special Weather Statement | RNK | Wythe | 58 min |
| May 15, 6:43 PM EDT | Severe Thunderstorm Warning | RNK | Pulaski, Wythe | 62 min |
| May 15, 6:56 PM EDT | Flash Flood Warning | RNK | Bedford, Franklin | 6 hr |
| May 15, 7:49 PM EDT | Special Weather Statement | RNK | Pulaski | 56 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.