Alert archive / Virginia / Tornado Warnings in 2011
Tornado Warning 7, NWS Blacksburg, VA
NWS Blacksburg, VA issued this tornado warning at Apr 8, 2011, 7:59 PM EDT for Floyd County, Patrick County, Virginia. It was in force for 31 min. 5 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
- Apr 8, 2011, 7:59 PM EDT (23:59 UTC)
- Expired
- Apr 8, 2011, 8:30 PM EDT
- In force
- 31 min
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
Counties Floyd County, VA, Patrick County, VA
The radar
The Roanoke radar (KFCX), 30 km from the middle of the area, began a volume at 00:00 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 |
|---|---|---|---|
| Apr 8, 8:02 PM EDT | HAIL 1 | Indian Valley, VA | |
| Apr 8, 8:12 PM EDT | HAIL 1 | 2 Ese Willis, VA | |
| Apr 8, 8:15 PM EDT | TSTM WND DMG | 2 S Willis, VA | BARN DAMAGED AND SEVERAL TREES DOWN. |
| Apr 8, 8:20 PM EDT | TSTM WND GST 60 | Meadows Of Dan, VA | |
| Apr 8, 8:20 PM EDT | HAIL 1 | Meadows Of Dan, VA |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 8, 6:15 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 12.0 hours before the alert went out and 91 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1553 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- 159 m²/s²
- 0-3 km storm-relative helicity
- 315 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
095
WFUS51 KRNK 082359
TORRNK
VAC063-141-090030-
/O.NEW.KRNK.TO.W.0007.110408T2359Z-110409T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
759 PM EDT FRI APR 8 2011
THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A
* TORNADO WARNING FOR...
NORTHERN PATRICK COUNTY IN SOUTHWEST VIRGINIA
SOUTHWESTERN FLOYD COUNTY IN SOUTHWEST VIRGINIA
* UNTIL 830 PM EDT.
* AT 756 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR INDIAN
VALLEY...MOVING SOUTHEAST AT 40 MPH.
* LOCATIONS IMPACTED INCLUDE...
INDIAN VALLEY...
WILLIS...
ROCKY KNOB RECREATION AREA...
WOOLWINE...
BUFFALO RIDGE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.
WHEN IT IS SAFE TO DO SO...PLEASE RELAY YOUR SEVERE WEATHER REPORTS
TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE AT...1...8 6
6...2 1 5...4 3 2 4.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT
SATURDAY MORNING FOR NORTHWESTERN NORTH CAROLINA AND SOUTHWEST
VIRGINIA AND SOUTHEAST WEST VIRGINIA.
&&
LAT...LON 3662 8032 3681 8055 3690 8061 3694 8057
3679 8013
TIME...MOT...LOC 0000Z 302DEG 36KT 3688 8052
$$
DS2 follow-up statements
862
WWUS51 KRNK 090010
SVSRNK
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
810 PM EDT FRI APR 8 2011
VAC063-141-090030-
/O.CON.KRNK.TO.W.0007.000000T0000Z-110409T0030Z/
PATRICK VA-FLOYD VA-
810 PM EDT FRI APR 8 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM EDT FOR
SOUTHWESTERN FLOYD AND NORTHERN PATRICK COUNTIES...
AT 805 PM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS TORNADO WAS LOCATED
NEAR WILLIS...MOVING SOUTHEAST AT 40 MPH.
LOCATIONS IMPACTED INCLUDE...
WILLIS...
ROCKY KNOB SUMMIT...
ROCKY KNOB RECREATION AREA...
BUFFALO RIDGE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT
SATURDAY MORNING FOR NORTHWESTERN NORTH CAROLINA AND SOUTHWESTERN
VIRGINIA AND SOUTHEAST WEST VIRGINIA.
&&
LAT...LON 3680 8054 3686 8058 3692 8051 3679 8013
3662 8032
TIME...MOT...LOC 0010Z 302DEG 36KT 3683 8044
$$
DS303 WWUS51 KRNK 090019 SVSRNK SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BLACKSBURG VA 819 PM EDT FRI APR 8 2011 VAC063-141-090030- /O.CON.KRNK.TO.W.0007.000000T0000Z-110409T0030Z/ PATRICK VA-FLOYD VA- 819 PM EDT FRI APR 8 2011 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM EDT FOR SOUTHERN FLOYD AND NORTHERN PATRICK COUNTIES... AT 814 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR MABRY MILL...OR NEAR WILLIS...MOVING SOUTHEAST AT 40 MPH. LOCATIONS IMPACTED INCLUDE... MABRY MILL... WOOLWINE... BUFFALO RIDGE... PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT SATURDAY MORNING FOR NORTHWESTERN NORTH CAROLINA AND SOUTHWESTERN VIRGINIA AND SOUTHEAST WEST VIRGINIA. && LAT...LON 3678 8050 3688 8038 3679 8013 3662 8032 TIME...MOT...LOC 0018Z 302DEG 36KT 3676 8040 $$ DS
The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 5:53 PM EDT | Severe Thunderstorm Warning | RNK | Giles | 37 min |
| Apr 8, 6:26 PM EDT | Severe Thunderstorm Warning | RNK | Craig, Giles, Montgomery, Roanoke | 20 min |
| Apr 8, 6:29 PM EDT | Severe Thunderstorm Warning | RNK | Bland, Giles, Pulaski | 61 min |
| Apr 8, 7:17 PM EDT | Severe Thunderstorm Warning | RNK | Bland, Pulaski, Wythe | 28 min |
| Apr 8, 7:32 PM EDT | Tornado Warning | RNK | Carroll, Floyd, Pulaski | 28 min |
| Apr 8, 7:55 PM EDT | Severe Thunderstorm Warning | RNK | Grayson, Smyth | 24 min |
Nearby
Tornado Warnings in Virginia, 2011Every tornado warning in 2011Tornadoes in 2011
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.