Alert archive / Virginia / Tornado Warnings in 2011
Tornado Warning 72, NWS Wakefield, VA
NWS Wakefield, VA issued this tornado warning at Sep 11, 2011, 2:04 PM EDT for Lancaster County, Northumberland County, Virginia. It was in force for 26 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
- Sep 11, 2011, 2:04 PM EDT (18:04 UTC)
- Expired
- Sep 11, 2011, 2:30 PM EDT
- In force
- 26 min
- Issued by
- NWS Wakefield, VA
- Area
- Storm-based polygon
The radar
The Norfolk radar (KAKQ), 98 km from the middle of the area, began a volume at 18:06 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
Wallops Is Stn, VA (KWAL), launched 12:00Z, 6.1 hours before the alert went out and 86 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
- 370 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 1154 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
383
WFUS51 KAKQ 111804
TORAKQ
VAC103-133-111830-
/O.NEW.KAKQ.TO.W.0072.110911T1804Z-110911T1830Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WAKEFIELD VA
204 PM EDT SUN SEP 11 2011
THE NATIONAL WEATHER SERVICE IN WAKEFIELD HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN LANCASTER COUNTY IN EASTERN VIRGINIA...
SOUTHEASTERN NORTHUMBERLAND COUNTY IN EASTERN VIRGINIA...
* UNTIL 230 PM EDT
* AT 202 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR IRVINGTON...AND MOVING EAST AT 15 MPH.
* THIS DANGEROUS STORM WILL BE NEAR...
KILMARNOCK AROUND 215 PM EDT.
OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE BYRDTON AND
FOXWELLS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE... OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3769 7629 3768 7631 3766 7631 3763 7627
3762 7627 3763 7642 3769 7644 3776 7630
TIME...MOT...LOC 1804Z 260DEG 11KT 3766 7640
$$
LBROWN1 follow-up statement
835
WWUS51 KAKQ 111822
SVSAKQ
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WAKEFIELD VA
222 PM EDT SUN SEP 11 2011
VAC103-133-111830-
/O.CON.KAKQ.TO.W.0072.000000T0000Z-110911T1830Z/
NORTHUMBERLAND VA-LANCASTER VA-
222 PM EDT SUN SEP 11 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN LANCASTER AND
EXTREME SOUTHEASTERN NORTHUMBERLAND COUNTIES UNTIL 230 PM EDT...
AT 219 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED ABOUT 3 MILES NORTHEAST OF WHITE STONE...MOVING
EAST AT 15 MPH.
THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF EXTREME
SOUTHEASTERN NORTHUMBERLAND AND SOUTHEASTERN LANCASTER COUNTIES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3766 7636 3768 7637 3773 7630 3769 7629
3768 7631 3766 7631 3764 7629
TIME...MOT...LOC 1822Z 260DEG 11KT 3767 7633
$$
LBROWNThe office that day
Everything else NWS Wakefield, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 1:47 PM EDT | Special Weather Statement | AKQ | Lancaster | 58 min |
| Sep 11, 2:02 PM EDT | Special Marine Warning | AKQ | 88 min | |
| Sep 11, 3:37 PM EDT | Special Weather Statement | AKQ | Louisa | 53 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.