Alert archive / Arkansas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 21, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Mar 4, 2011, 11:02 PM CST for Baxter County, Searcy County, Stone County, Arkansas. It was in force for 43 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
- Mar 4, 2011, 11:02 PM CST (05:02 UTC)
- Expired
- Mar 4, 2011, 11:45 PM CST
- In force
- 43 min
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
Counties Baxter County, AR, Searcy County, AR, Stone County, AR
The radar
The Little Rock radar (KLZK), 123 km from the middle of the area, began a volume at 05:03 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 4, 6:50 PM CST | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 5.0 hours before the alert went out and 167 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
- 284 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 571 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.0
The text
As transmitted, in the capitals the NWS used until 2016.
455 WUUS54 KLZK 050502 SVRLZK ARC005-129-137-050545- /O.NEW.KLZK.SV.W.0021.110305T0502Z-110305T0545Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LITTLE ROCK AR 1102 PM CST FRI MAR 4 2011 THE NATIONAL WEATHER SERVICE IN LITTLE ROCK HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTH CENTRAL BAXTER COUNTY IN NORTH CENTRAL ARKANSAS... EAST CENTRAL SEARCY COUNTY IN NORTH CENTRAL ARKANSAS... NORTHWESTERN STONE COUNTY IN NORTH CENTRAL ARKANSAS... * UNTIL 1145 PM CST * AT 1059 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 3 MILES NORTHWEST OF ELBERTA...OR 6 MILES EAST OF MARSHALL...AND MOVING EAST AT 25 MPH. * LOCATIONS IMPACTED INCLUDE... THOLA... FIFTY SIX... FIFTY-SIX... ELBERTA... TIMBO... OXLEY... ONIA... NEWNATA... LONE PINE... LESLIE... LANDIS... FLAG... BIG FLAT... BEGLEY... ALCO... WILEYS COVE... WEST RICHWOODS... SHILOH... PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 3608 9221 3579 9215 3580 9261 3595 9264 TIME...MOT...LOC 0503Z 258DEG 23KT 3589 9251 $$ BJS
2 follow-up statements
954
WWUS54 KLZK 050533
SVSLZK
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1133 PM CST FRI MAR 4 2011
ARC005-129-050543-
/O.CAN.KLZK.SV.W.0021.000000T0000Z-110305T0545Z/
SEARCY AR-BAXTER AR-
1133 PM CST FRI MAR 4 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL BAXTER AND EAST
CENTRAL SEARCY COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 3579 9215 3580 9241 3598 9233 3598 9230
3602 9231 3606 9229 3607 9225 3606 9221
TIME...MOT...LOC 0533Z 263DEG 23KT 3590 9225
$$
ARC137-050545-
/O.CON.KLZK.SV.W.0021.000000T0000Z-110305T0545Z/
STONE AR-
1133 PM CST FRI MAR 4 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
STONE COUNTY UNTIL 1145 PM CST...
AT 1129 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED 5 MILES SOUTHWEST OF FIFTY SIX...OR 10 MILES WEST OF MOUNTAIN
VIEW...MOVING EAST AT 25 MPH.
* LOCATIONS IN THE PATH OF THIS SEVERE THUNDERSTORM INCLUDE...
FIFTY SIX... FIFTY-SIX... TIMBO...
ONIA... NEWNATA... ALCO...
WEST RICHWOODS... GUNNER POOL REC AREA...
BARKSHED REC AREA...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 3579 9215 3580 9241 3598 9233 3598 9230
3602 9231 3606 9229 3607 9225 3606 9221
TIME...MOT...LOC 0533Z 263DEG 23KT 3590 9225
$$
BJS010
WWUS54 KLZK 050539
SVSLZK
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1139 PM CST FRI MAR 4 2011
ARC137-050550-
/O.EXP.KLZK.SV.W.0021.000000T0000Z-110305T0545Z/
STONE AR-
1139 PM CST FRI MAR 4 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN STONE COUNTY WILL
EXPIRE AT 1145 PM CST...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
LAT...LON 3579 9215 3580 9241 3598 9233 3598 9230
3602 9231 3606 9229 3607 9225 3606 9221
TIME...MOT...LOC 0540Z 263DEG 23KT 3590 9219
$$
BJSThe office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 4, 8:27 PM CST | Special Weather Statement | LZK | Boone | 43 min |
| Mar 4, 8:40 PM CST | Severe Thunderstorm Warning | LZK | Boone, Newton | 50 min |
| Mar 4, 9:24 PM CST | Special Weather Statement | LZK | Newton | 46 min |
| Mar 4, 9:31 PM CST | Special Weather Statement | LZK | Marion | 44 min |
| Mar 4, 9:43 PM CST | Severe Thunderstorm Warning | LZK | Baxter, Marion | 47 min |
| Mar 4, 10:20 PM CST | Severe Thunderstorm Warning | LZK | Baxter, Fulton, Izard, Marion | 40 min |
| Mar 4, 10:36 PM CST | Special Weather Statement | LZK | Searcy | 44 min |
| Mar 4, 10:52 PM CST | Severe Thunderstorm Warning | LZK | Fulton, Izard | 38 min |
| Mar 4, 11:29 PM CST | Severe Thunderstorm Warning | LZK | Fulton, Izard, Sharp | 46 min |
| Mar 4, 11:57 PM CST | Special Weather Statement | LZK | Cleburne, Independence | 58 min |
| Mar 5, 12:56 AM CST | Flash Flood Warning | LZK | Cleburne, Conway, Faulkner, Independence, Izard, Stone and 1 more | 3 hr |
| Mar 5, 1:01 AM CST | Special Weather Statement | LZK | Cleburne, Conway, Faulkner, Independence | 44 min |
| Mar 5, 1:57 AM CST | Special Weather Statement | LZK | Jackson, Lonoke, Pulaski, White, Woodruff | 58 min |
| Mar 5, 1:58 AM CST | Special Weather Statement | LZK | Ouachita | 47 min |
| Mar 5, 2:31 AM CST | Special Weather Statement | LZK | Grant, Hot Spring, Saline | 59 min |
| Mar 5, 3:03 AM CST | Special Weather Statement | LZK | Woodruff | 47 min |
Nearby
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.