Alert archive / Arkansas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 707, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Jul 24, 2011, 2:00 PM CDT for 4 counties in Arkansas. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 24, 2011, 2:00 PM CDT (19:00 UTC)
- Expired
- Jul 24, 2011, 2:45 PM CDT
- In force
- 45 min
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
Counties Cleburne County, AR, Faulkner County, AR, Van Buren County, AR, White County, AR
The radar
The Little Rock radar (KLZK), 61 km from the middle of the area, began a volume at 19:00 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.
The nearest sounding before it
Little Rock, AR (KLZK), launched 12:00Z, 7.0 hours before the alert went out and 210 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
- 2983 J/kg
- Mixed-layer CIN
- -97 J/kg
- Mixed-layer LCL
- 942 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Little Rock, AR wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 24, 12:36 PM CDT, 1 hour 24 minutes earlier.
Area forecast discussion, Jul 24, 12:36 PM CDT, 1 hour 24 minutes before
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</html>Hazardous weather outlook, Jul 24, 5:00 AM CDT, 9 hours before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LITTLE ROCK AR 500 AM CDT SUN JUL 24 2011 ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-251000- ARKANSAS-BAXTER-BOONE-BRADLEY-CALHOUN-CLARK-CLEBURNE-CLEVELAND- CONWAY-DALLAS-DESHA-DREW-FAULKNER-FULTON-GARLAND-GRANT-HOT SPRING- INDEPENDENCE-IZARD-JACKSON-JEFFERSON-JOHNSON-LINCOLN-LOGAN-LONOKE- MARION-MONROE-MONTGOMERY-NEWTON-OUACHITA-PERRY-PIKE-POLK-POPE- PRAIRIE-PULASKI-SALINE-SCOTT-SEARCY-SHARP-STONE-VAN BUREN-WHITE- WOODRUFF-YELL- 500 AM CDT SUN JUL 24 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS. .DAY ONE...TODAY AND TONIGHT A HEAT ADVISORY IS IN EFFECT FOR THE FORECAST AREA TODAY DUE TO CONTINUED HOT AND HUMID CONDITIONS. AFTERNOON HIGH TEMPERATURES WILL BE IN THE UPPER 90S TO AROUND 100...AND HEAT INDEX VALUES OF AROUND 105 DEGREES ARE EXPECTED. ISOLATED TO SCATTERED THUNDERSTORMS WILL AGAIN BE SEEN ACROSS THE STATE TODAY. WHILE WIDESPREAD SEVERE STORMS ARE NOT EXPECTED...A FEW STORMS COULD BECOME SEVERE. DAMAGING WINDS WOULD BE THE GREATEST THREAT FROM ANY STRONG TO SEVERE STORMS TODAY. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THE HOT AND HUMID WEATHER CONDITIONS WILL CONTINUE THROUGH AT LEAST WEDNESDAY. DURING THIS TIME AFTERNOON HIGH TEMPERATURES WILL BE IN THE MID TO UPPER 90S...WITH SOME LOCATIONS SEEING HIGHS OVER 100. THIS WILL CREATE DANGEROUS HEAT CONDITIONS...AND AFTERNOON HEAT INDEX VALUES WILL REACH AROUND 105 DEGREES AND ABOVE IN MANY LOCATIONS ACROSS THE STATE EACH DAY. ALSO...ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE...MAINLY IN THE AFTERNOON TO EARLY EVENING HOURS. WHILE WIDESPREAD SEVERE WEATHER IS NOT EXPECTED...SOME STORMS COULD BECOME STRONG TO SEVERE...WITH DAMAGING WINDS THE MAIN THREAT. A SLIGHT BREAK IN THE HEAT MAY BE SEEN BY THE END OF THE WORK WEEK AS THE STRONG UPPER LEVEL RIDGE MOVES EAST. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. && VISIT NWS LITTLE ROCK ON THE WEB. GO TO HTTP://WEATHER.GOV AND CLICK ON CENTRAL ARKANSAS. 63
In the hours before
Special weather statement, Jul 24, 1:26 PM CDT, 34 minutes before
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</html>Special weather statement, Jul 24, 1:41 PM CDT, 19 minutes before
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</html>Special weather statement, Jul 24, 1:52 PM CDT, 8 minutes before
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</html>Special weather statement, Jul 24, 1:55 PM CDT, 5 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LITTLE ROCK AR 155 PM CDT SUN JUL 24 2011 ARZ025-033-034-241940- JACKSON AR-WHITE AR-WOODRUFF AR- 155 PM CDT SUN JUL 24 2011 ...SIGNIFICANT WEATHER ADVISORY FOR EASTERN WHITE...NORTHWESTERN WOODRUFF AND SOUTHWESTERN JACKSON COUNTIES UNTIL 245 PM CDT... AT 151 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 2 MILES NORTHEAST OF RUSSELL...OR 9 MILES NORTHWEST OF AUGUSTA...MOVING SOUTH AT 5 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. * LOCATIONS IMPACTED INCLUDE... AUGUSTA... RUSSELL... BALD KNOB... WORDEN... VELVET RIDGE... HEFFINGTON... BRADFORD... THREE SISTERS LAKE... THREE PRONG LAKE... TEAGUE LAKE... RUSSELL MTN... RIO VISTA... LONG LAKE... LITTLE JORDAN LAKE... LIBERTY VALLEY... LAKE BALD KNOB... BIG HURRICANE LAKE... BALD KNOB WILDLIFE REFUGE... THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY...TURN AROUND DONT DROWN! LAT...LON 3522 9136 3523 9163 3546 9159 3545 9136 TIME...MOT...LOC 1855Z 010DEG 6KT 3537 9148 /44
Special weather statement, Jul 24, 1:57 PM CDT, 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LITTLE ROCK AR 157 PM CDT SUN JUL 24 2011 ARZ007-016-241945- INDEPENDENCE AR-SHARP AR- 157 PM CDT SUN JUL 24 2011 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN INDEPENDENCE AND SOUTHERN SHARP COUNTIES UNTIL 245 PM CDT... AT 155 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 6 MILES SOUTH OF CAVE CITY...OR 7 MILES NORTH OF BATESVILLE...MOVING SOUTH AT 10 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. * LOCATIONS IMPACTED INCLUDE... BATESVILLE... SALADO... NEWARK... MOOREFIELD... MAGNESS... CAVE CITY... SULPHUR ROCK... SANDTOWN... PFEIFFER... GAINESBORO... DESHA... CURIA... CHARLOTTE... RAMSEY HILL... MT ZION... MCHUE... THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY...TURN AROUND DONT DROWN! LAT...LON 3571 9138 3566 9168 3592 9171 3596 9150 TIME...MOT...LOC 1858Z 347DEG 10KT 3585 9158 /44
The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 7:12 PM CDT | Special Weather Statement | LZK | Garland | 28 min |
| Jul 24, 1:21 PM CDT | Severe Thunderstorm Warning | LZK | Cleburne | 27 min |
| Jul 24, 1:26 PM CDT | Special Weather Statement | LZK | Pike | 44 min |
| Jul 24, 1:33 PM CDT | Severe Thunderstorm Warning | LZK | Clark, Montgomery, Pike | 27 min |
| Jul 24, 1:41 PM CDT | Special Weather Statement | LZK | Van Buren | 44 min |
| Jul 24, 1:52 PM CDT | Special Weather Statement | LZK | White | 48 min |
| Jul 24, 1:55 PM CDT | Special Weather Statement | LZK | White | 45 min |
| Jul 24, 1:57 PM CDT | Special Weather Statement | LZK | Independence | 48 min |
| Jul 24, 2:16 PM CDT | Severe Thunderstorm Warning | LZK | Independence, Jackson | 28 min |
| Jul 24, 2:28 PM CDT | Special Weather Statement | LZK | Scott | 47 min |
| Jul 24, 2:33 PM CDT | Special Weather Statement | LZK | White | 47 min |
| Jul 24, 2:36 PM CDT | Special Weather Statement | LZK | Polk | 44 min |
| Jul 24, 2:38 PM CDT | Special Weather Statement | LZK | Jackson | 47 min |
| Jul 24, 2:51 PM CDT | Severe Thunderstorm Warning | LZK | Polk | 24 min |
| Jul 24, 3:06 PM CDT | Severe Thunderstorm Warning | LZK | Clark, Ouachita | 24 min |
| Jul 24, 3:14 PM CDT | Special Weather Statement | LZK | Polk | 31 min |
| Jul 24, 3:26 PM CDT | Severe Thunderstorm Warning | LZK | Clark | 38 min |
| Jul 24, 3:49 PM CDT | Special Weather Statement | LZK | Ouachita | 46 min |
| Jul 24, 3:50 PM CDT | Special Weather Statement | LZK | Polk | 45 min |
| Jul 24, 3:56 PM CDT | Severe Thunderstorm Warning | LZK | Ouachita | 34 min |
| Jul 24, 4:11 PM CDT | Severe Thunderstorm Warning | LZK | Ouachita | 19 min |
| Jul 24, 4:29 PM CDT | Severe Thunderstorm Warning | LZK | Ouachita | 31 min |
| Jul 24, 4:30 PM CDT | Special Weather Statement | LZK | Ouachita | 30 min |
| Jul 24, 4:40 PM CDT | Severe Thunderstorm Warning | LZK | Dallas | 35 min |
| Jul 24, 4:58 PM CDT | Special Weather Statement | LZK | Ouachita | 32 min |
| Jul 24, 5:01 PM CDT | Severe Thunderstorm Warning | LZK | Dallas | 14 min |
| Jul 24, 5:15 PM CDT | Special Weather Statement | LZK | Dallas | 30 min |
| Jul 24, 6:31 PM CDT | Special Weather Statement | LZK | Lincoln | 29 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.