Alert archive / Arkansas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 13, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Feb 24, 2011, 5:31 PM CST for Columbia County, Union County, Arkansas. It was in force for 59 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
- Feb 24, 2011, 5:31 PM CST (23:31 UTC)
- Expired
- Feb 24, 2011, 6:30 PM CST
- In force
- 59 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
Counties Columbia County, AR, Union County, AR
The radar
The Shreveport radar (KSHV), 156 km from the middle of the area, began a volume at 23:34 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 |
|---|---|---|---|
| Feb 24, 5:35 PM CST | TSTM WND DMG | 2 S Mount Herman, AR | TREES DOWN ACROSS HIGHWAY 82 AT THE COLUMBIA AND UNION COUNTY LINE |
| Feb 24, 5:35 PM CST | TSTM WND DMG | 2 S Mount Holly, AR | TREES DOWN ACROSS HIGHWAY 82 AT THE COLUMBIA AND UNION COUNTY LINE |
| Feb 24, 5:50 PM CST | TSTM WND DMG | El Dorado, AR | WIDESPREAD TREES AND POWERLINES DOWNED ACROSS UNION COUNTY |
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 |
|---|---|---|---|
| Feb 24, 11:25 AM CST | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 11.5 hours before the alert went out and 147 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
- 36 J/kg
- Mixed-layer CIN
- -228 J/kg
- Mixed-layer LCL
- 741 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 243 m²/s²
- 0-3 km storm-relative helicity
- 282 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
038
WUUS54 KSHV 242331
SVRSHV
ARC027-139-250030-
/O.NEW.KSHV.SV.W.0013.110224T2331Z-110225T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
531 PM CST THU FEB 24 2011
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
UNION COUNTY IN SOUTH CENTRAL ARKANSAS...
THIS INCLUDES THE CITIES OF...SMACKOVER...NORPHLET...JUNCTION
CITY...HUTTIG...EL DORADO...
SOUTHEASTERN COLUMBIA COUNTY IN SOUTHWEST ARKANSAS...
* UNTIL 630 PM CST
* AT 530 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED NEAR ATLANTA...OR 17 MILES
SOUTHEAST OF MAGNOLIA...AND MOVING EAST AT 45 MPH. SOME WEAK
ROTATION WAS ALSO OBSERVED WITH THIS SEVERE THUNDERSTORM SOUTHEAST
OF MAGNOLIA.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
VILLAGE...MOUNT HOLLY...LISBON...WESSON...CALION...LAWSON...
URBANA...STRONG AND LAPILE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
&&
LAT...LON 3301 9231 3302 9315 3314 9317 3339 9294
3340 9274 3337 9265 3338 9256 3333 9251
3333 9245 3328 9242 3330 9233 3327 9230
3327 9222 3321 9221 3322 9217 3317 9213
3310 9212 3304 9206 3302 9207
TIME...MOT...LOC 2330Z 262DEG 39KT 3307 9303
$$
132 follow-up statements
541
WWUS54 KSHV 242348
SVSSHV
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
548 PM CST THU FEB 24 2011
ARC027-242357-
/O.CAN.KSHV.SV.W.0013.000000T0000Z-110225T0030Z/
COLUMBIA AR-
548 PM CST THU FEB 24 2011
...THE SEVERE THUNDERSTORM WARNING FOR COLUMBIA COUNTY IS
CANCELLED...
LAT...LON 3302 9207 3302 9298 3336 9297 3339 9294
3340 9275 3337 9265 3338 9256 3333 9251
3333 9245 3328 9242 3330 9233 3327 9230
3327 9222 3321 9221 3322 9217 3317 9213
3310 9212
TIME...MOT...LOC 2347Z 268DEG 53KT 3336 9256 3303 9272
$$
ARC139-250030-
/O.CON.KSHV.SV.W.0013.000000T0000Z-110225T0030Z/
UNION AR-
548 PM CST THU FEB 24 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CST
FOR UNION COUNTY...
AT 547 PM CST...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM NORPHLET TO JUNCTION CITY...
MOVING EAST AT 40 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CATESVILLE...CALION...CALEDONIA...LOCKHART...LAWSON...HILLSBORO...
URBANA...PIGEON HILL...AURELLE...NEW LONDON...STRONG...LAPILE...
HUTTIG AND FELSENTHAL
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
&&
LAT...LON 3302 9207 3302 9298 3336 9297 3339 9294
3340 9275 3337 9265 3338 9256 3333 9251
3333 9245 3328 9242 3330 9233 3327 9230
3327 9222 3321 9221 3322 9217 3317 9213
3310 9212
TIME...MOT...LOC 2347Z 268DEG 53KT 3336 9256 3303 9272
$$
13301
WWUS54 KSHV 250019
SVSSHV
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
619 PM CST THU FEB 24 2011
ARC139-250030-
/O.CON.KSHV.SV.W.0013.000000T0000Z-110225T0030Z/
UNION AR-
619 PM CST THU FEB 24 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CST
FOR UNION COUNTY...
AT 618 PM CST...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 13 MILES NORTHEAST OF NEW LONDON
TO AURELLE...OR ALONG A LINE EXTENDING FROM 17 MILES NORTHWEST OF
WEST CROSSETT TO 11 MILES WEST OF HUTTIG...MOVING EAST AT 40 MPH.
THESE STORMS HAVE A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE
ACROSS UNION COUNTY EARLIER THIS EVENING.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LAPILE
AND FELSENTHAL
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
&&
LAT...LON 3302 9207 3302 9248 3328 9233 3328 9231
3327 9230 3327 9222 3321 9221 3322 9217
3317 9213 3310 9212
TIME...MOT...LOC 0018Z 268DEG 53KT 3334 9216 3301 9232
$$
13Nearby
Severe Thunderstorm Warnings in Arkansas, 2011Every severe thunderstorm warning 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.