Alert archive / Arkansas / Tornado Warnings in 2011
Tornado Warning 149, NWS Little Rock, AR
NWS Little Rock, AR issued this tornado warning at May 20, 2011, 4:54 PM CDT for Clark County, Garland County, Hot Spring County, Arkansas. It was in force for 51 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 20, 2011, 4:54 PM CDT (21:54 UTC)
- Expired
- May 20, 2011, 5:45 PM CDT
- In force
- 51 min
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
Counties Clark County, AR, Garland County, AR, Hot Spring County, AR
The radar
The Little Rock radar (KLZK), 93 km from the middle of the area, began a volume at 21:57 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 20, 5:18 PM CDT | HAIL 1 | 6 E Bismarck, AR | THIS HAIL OCCURRED AT DEROCHE. |
| May 20, 5:32 PM CDT | FUNNEL CLOUD | 2 Ne Friendship, AR | FUNNEL CLOUDS WERE REPORTED AT MILE MARKERS 84 AND 87 ON INTERSTATE 30. |
| May 20, 5:48 PM CDT | TORNADO 0 | 3 Sw Malvern, AR | A BRIEF TORNADO OCCURRED IN HOT SPRING COUNTY. THE STORM TRACKED FROM 2.7 MILES SW OF MALVERN TO 1.3 MILES SE OF MALVERN AND HAD A PATH LENGTH OF 3.2 MILES. THE STORM WAS RATED AS AN EF0 ON THE ENHANCED FUJITA SCALE. DAMAGE CONSISTED OF MANY LARGE LIMBS BLOWN |
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 |
|---|---|---|---|
| May 20, 11:03 AM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 9.9 hours before the alert went out and 213 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
- 2656 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 648 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 151 m²/s²
- 0-3 km storm-relative helicity
- 231 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
390 WFUS54 KLZK 202154 TORLZK ARC019-051-059-202245- /O.NEW.KLZK.TO.W.0149.110520T2154Z-110520T2245Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE LITTLE ROCK AR 454 PM CDT FRI MAY 20 2011 THE NATIONAL WEATHER SERVICE IN LITTLE ROCK HAS ISSUED A * TORNADO WARNING FOR... SOUTHEASTERN GARLAND COUNTY IN CENTRAL ARKANSAS... HOT SPRING COUNTY IN SOUTHWEST ARKANSAS... CENTRAL CLARK COUNTY IN SOUTHWEST ARKANSAS... * UNTIL 545 PM CDT * AT 453 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS SEVERE STORM WAS LOCATED 6 MILES SOUTH OF DEGRAY LAKE. DOPPLER RADAR SHOWED THIS SEVERE STORM MOVING NORTHEAST AT 20 MPH. * LOCATIONS IN THE PATH OF THIS DANGEROUS STORM INCLUDE... MALVERN... DEGRAY LAKE... ARKADELPHIA... LAKE CATHERINE... DEGRAY LAKE SP... CADDO VALLEY... RED OAK... MIDWAY... HOLLYWOOD... FRIENDSHIP... DONALDSON... DE ROCHE... CENTRAL... CANEY... SOCIAL HILL... SLUNGER BAY... SHINN MTN... SHILOH... THIS INCLUDES INTERSTATE 30 BETWEEN MILE MARKERS 68 AND 97. 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 3451 9299 3434 9277 3403 9317 3412 9330 TIME...MOT...LOC 2154Z 223DEG 19KT 3416 9317 $$ 62
3 follow-up statements
941 WWUS54 KLZK 202205 SVSLZK SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LITTLE ROCK AR 505 PM CDT FRI MAY 20 2011 ARC019-051-059-202245- /O.CON.KLZK.TO.W.0149.000000T0000Z-110520T2245Z/ CLARK AR-HOT SPRING AR-GARLAND AR- 505 PM CDT FRI MAY 20 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN GARLAND...HOT SPRING AND NORTH CENTRAL CLARK COUNTIES UNTIL 545 PM CDT... AT 502 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 3 MILES WEST OF CADDO VALLEY...OR 5 MILES SOUTHEAST OF DEGRAY LAKE...MOVING NORTHEAST AT 25 MPH. IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP TO PING PONG BALL SIZE. * LOCATIONS IN OR NEAR THE PATH OF THIS DANGEROUS STORM INCLUDE... MALVERN... DEGRAY LAKE... ARKADELPHIA... LAKE CATHERINE... DEGRAY LAKE SP... CADDO VALLEY... RED OAK... MIDWAY... FRIENDSHIP... DONALDSON... DE ROCHE... CENTRAL... CANEY... SOCIAL HILL... SLUNGER BAY... SHINN MTN... SAGINAW... OLD DE ROCHE... THIS INCLUDES INTERSTATE 30 BETWEEN MILE MARKERS 70 AND 97. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 3408 9311 3420 9324 3451 9299 3434 9277 TIME...MOT...LOC 2205Z 230DEG 22KT 3419 9311 $$ 62
311 WWUS54 KLZK 202217 SVSLZK SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LITTLE ROCK AR 517 PM CDT FRI MAY 20 2011 ARC019-051-059-202245- /O.CON.KLZK.TO.W.0149.000000T0000Z-110520T2245Z/ CLARK AR-HOT SPRING AR-GARLAND AR- 517 PM CDT FRI MAY 20 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN GARLAND...HOT SPRING AND NORTH CENTRAL CLARK COUNTIES UNTIL 545 PM CDT... AT 514 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 3 MILES NORTHEAST OF CADDO VALLEY...OR 8 MILES NORTH OF ARKADELPHIA...MOVING NORTHEAST AT 30 MPH. * LOCATIONS IN OR NEAR THE PATH OF THIS DANGEROUS STORM INCLUDE... MALVERN... LAKE CATHERINE... DEGRAY LAKE SP... CADDO VALLEY... RED OAK... MIDWAY... FRIENDSHIP... DONALDSON... DE ROCHE... CENTRAL... CANEY... SOCIAL HILL... SLUNGER BAY... SHINN MTN... SAGINAW... OLD DE ROCHE... OAK BOWER... LAKEVIEW PARK... THIS INCLUDES INTERSTATE 30 BETWEEN MILE MARKERS 77 AND 97. 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 3413 9305 3427 9318 3451 9299 3434 9277 TIME...MOT...LOC 2217Z 231DEG 24KT 3425 9302 $$ 62
036
WWUS54 KLZK 202227
SVSLZK
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
527 PM CDT FRI MAY 20 2011
ARC019-202237-
/O.CAN.KLZK.TO.W.0149.000000T0000Z-110520T2245Z/
CLARK AR-
527 PM CDT FRI MAY 20 2011
...THE TORNADO WARNING FOR NORTH CENTRAL CLARK COUNTY IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 3420 9302 3424 9303 3424 9307 3424 9309
3430 9316 3451 9299 3434 9277 3417 9299
TIME...MOT...LOC 2227Z 233DEG 24KT 3428 9296
$$
ARC051-059-202245-
/O.CON.KLZK.TO.W.0149.000000T0000Z-110520T2245Z/
HOT SPRING AR-GARLAND AR-
527 PM CDT FRI MAY 20 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN GARLAND AND
HOT SPRING COUNTIES UNTIL 545 PM CDT...
AT 523 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
DANGEROUS STORM WAS LOCATED 7 MILES NORTHEAST OF CADDO VALLEY...OR 11
MILES NORTHEAST OF ARKADELPHIA...MOVING NORTHEAST AT 30 MPH. IN
ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING LARGE
DAMAGING HAIL UP TO PING PONG BALL SIZE.
* LOCATIONS IN OR NEAR THE PATH OF THIS DANGEROUS STORM INCLUDE...
MALVERN... LAKE CATHERINE... RED OAK...
MIDWAY... FRIENDSHIP... DONALDSON...
DE ROCHE... CENTRAL... CANEY...
SOCIAL HILL... SLUNGER BAY... SHINN MTN...
SAGINAW... OLD DE ROCHE... LAKE CATHERINE SP...
HARP... EBENEZER... DIAMONDHEAD...
THIS INCLUDES INTERSTATE 30 BETWEEN MILE MARKERS 82 AND 97.
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 3420 9302 3424 9303 3424 9307 3424 9309
3430 9316 3451 9299 3434 9277 3417 9299
TIME...MOT...LOC 2227Z 233DEG 24KT 3428 9296
$$
62The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 9:15 AM CDT | Severe Thunderstorm Warning | LZK | Clark, Hot Spring, Montgomery, Pike | 28 min |
| May 20, 11:20 AM CDT | Severe Thunderstorm Warning | LZK | Johnson, Newton | 40 min |
| May 20, 11:39 AM CDT | Flash Flood Watch | LZK | Arkansas, Baxter, Clark, Cleburne, Conway, Dallas and 21 more | 17 hr |
| May 20, 11:57 AM CDT | Severe Thunderstorm Warning | LZK | Johnson, Newton | 48 min |
| May 20, 11:57 AM CDT | Severe Thunderstorm Warning | LZK | Garland, Perry, Pulaski, Saline | 48 min |
| May 20, 12:05 PM CDT | Severe Thunderstorm Warning | LZK | Johnson, Newton, Pope, Searcy | 40 min |
| May 20, 12:46 PM CDT | Severe Thunderstorm Warning | LZK | Faulkner, Pulaski | 44 min |
| May 20, 12:50 PM CDT | Severe Thunderstorm Warning | LZK | Jefferson, Lonoke | 40 min |
| May 20, 12:59 PM CDT | Severe Thunderstorm Warning | LZK | Faulkner, Lonoke, Pulaski | 46 min |
| May 20, 1:31 PM CDT | Severe Thunderstorm Warning | LZK | Arkansas, Jefferson, Lonoke, Prairie | 44 min |
| May 20, 1:46 PM CDT | Severe Thunderstorm Warning | LZK | Logan, Polk, Scott | 44 min |
| May 20, 2:15 PM CDT | Severe Thunderstorm Warning | LZK | Fulton, Independence, Izard, Jackson, Sharp, Stone | 35 min |
| May 20, 2:16 PM CDT | Severe Thunderstorm Warning | LZK | Logan, Pope, Van Buren, Yell | 22 min |
| May 20, 3:09 PM CDT | Special Weather Statement | LZK | Jackson | 31 min |
| May 20, 3:22 PM CDT | Special Weather Statement | LZK | Conway, Pope | 33 min |
| May 20, 3:40 PM CDT | Special Weather Statement | LZK | White | 30 min |
| May 20, 4:08 PM CDT | Special Weather Statement | LZK | Clark | 32 min |
| May 20, 4:45 PM CDT | Special Weather Statement | LZK | Garland, Hot Spring | 30 min |
| May 20, 4:47 PM CDT | Flash Flood Warning | LZK | Cleburne, Faulkner, Van Buren | 3 hr |
| May 20, 4:49 PM CDT | Severe Thunderstorm Warning | LZK | Clark, Garland, Hot Spring, Saline | 26 min |
| May 20, 5:16 PM CDT | Flash Flood Warning | LZK | Cleburne, Independence, Izard, Jackson, Sharp, Stone and 1 more | 3 hr |
| May 20, 5:35 PM CDT | Special Weather Statement | LZK | Jackson, White | 45 min |
| May 20, 5:36 PM CDT | Tornado Warning | LZK | Garland, Grant, Hot Spring, Saline | 39 min |
| May 20, 6:14 PM CDT | Severe Thunderstorm Warning | LZK | Grant, Hot Spring, Pulaski, Saline | 46 min |
| May 20, 6:58 PM CDT | Special Weather Statement | LZK | Pulaski | 47 min |
| May 20, 6:59 PM CDT | Special Weather Statement | LZK | Montgomery | 46 min |
Nearby
Tornado Warnings in Arkansas, 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.