Alert archive / Arkansas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 472, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at May 23, 2011, 12:38 PM CDT for Baxter County, Marion County, Arkansas. It was in force for 37 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
- May 23, 2011, 12:38 PM CDT (17:38 UTC)
- Expired
- May 23, 2011, 1:15 PM CDT
- In force
- 37 min
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
Counties Baxter County, AR, Marion County, AR
The radar
The Springfield radar (KSGF), 133 km from the middle of the area, began a volume at 17:38 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
Springfield, MO (KSGF), launched 12:00Z, 5.6 hours before the alert went out and 134 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
- 1041 J/kg
- Mixed-layer CIN
- -257 J/kg
- Mixed-layer LCL
- 1640 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 247 m²/s²
- 0-3 km storm-relative helicity
- 224 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
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 May 23, 6:33 AM CDT, 6 hours 5 minutes earlier.
Area forecast discussion, May 23, 6:33 AM CDT, 6 hours 5 minutes before
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</html>Hazardous weather outlook, May 23, 9:28 AM CDT, 3 hours 10 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LITTLE ROCK AR 928 AM CDT MON MAY 23 2011 ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-241000- 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- 928 AM CDT MON MAY 23 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS. .DAY ONE...TODAY AND TONIGHT THERE IS AGAIN A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY AND TONIGHT ACROSS MOST OF ARKANSAS. THROUGH THE EARLY AFTERNOON HOURS...THUNDERSTORMS ARE EXPECTED TO DEVELOP INTO WESTERN AND CENTRAL ARKANSAS...AIDED BY A STRONG LOW LEVEL JET. LARGE HAIL WILL BE THE PRIMARY THREAT THROUGH EARLY AFTERNOON. DURING THE MID AFTERNOON...THROUGH THE EVENING HOURS...THE OVERALL SEVERE THREAT WILL INCREASE...AS THE INSTABILITY INCREASES DUE TO SOLAR HEATING. VERY LARGE HAIL...AND DAMAGING WIND GUSTS WILL BE POSSIBLE. AN ENHANCED SEVERE WEATHER THREAT...WITH A POSSIBILITY FOR TORNADOES...WILL EXIST ALONG AND NORTH OF A LINE FROM CLARKSVILLE...TO BATESVILLE DURING THIS TIME. IN ADDITION...ANY THUNDERSTORM THAT DEVELOPS COULD PRODUCE LOCALLY HEAVY RAINFALL. THE OVERALL OVERALL COVERAGE AN INTENSITY OF THUNDERSTORMS IS EXPECTED TO DECREASE AFTER 11 PM. RIVER FLOODING CONTINUES ACROSS EASTERN ARKANSAS. WHILE MOST RIVERS HAVE CRESTED...SOME ARE RISING AGAIN...AND THE WATER WILL BE VERY SLOW TO RECEDE. A FEW ROADS IN EASTERN SECTIONS OF THE STATE REMAIN CLOSED. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY SEVERE STORMS WILL BE POSSIBLE ONCE AGAIN ON TUESDAY ACROSS MUCH OF ARKANSAS. THIS IS DUE TO A STALLED FRONT TO THE NORTH AND WEST OF ARKANSAS. STORM SYSTEMS FROM THE SOUTHWEST WILL INTERACT WITH THE FRONT...AND THIS WILL RESULT IN SEVERAL ROUNDS OF PRECIPITATION THROUGH THE MIDDLE OF THIS WEEK. TWO TO FOUR INCH RAINFALL AMOUNTS ARE POSSIBLE IN THE NORTHERN AND WESTERN COUNTIES NEAREST THE STALLED FRONT...OVER THE NEXT SEVERAL DAYS. THIS COULD LEAD TO RISES ON AREA RIVERS...BUT NOT TO THE LEVELS REACHED EARLIER THIS MONTH. IT APPEARS THE FRONT WILL FINALLY GAIN SOME MOMENTUM AND MOVE TO THE SOUTHEAST THURSDAY. ANOTHER ROUND OF SEVERE WEATHER AND HEAVY RAIN IS POSSIBLE ALONG THE FRONT. IT APPEARS FRIDAY AND THE UPCOMING HOLIDAY WEEKEND WILL BE DRY AND WARM AS HIGH PRESSURE SETTLES OVER THE AREA. RIVER FLOODING WILL REMAIN AN ISSUE ACROSS EASTERN ARKANSAS FOR THE NEXT SEVERAL DAYS. STAY TUNED TO LATER FORECASTS. INDIVIDUALS ARE ENCOURAGED TO MONITOR NATIONAL WEATHER SERVICE FORECASTS FOR THE LATEST ON RIVER LEVELS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS EXPECTED...ESPECIALLY BETWEEN 3 AND 9 PM...ALONG AREAS ALONG AND TO THE NORTH OF INTERSTATE 40. && VISIT NWS LITTLE ROCK ON THE WEB. GO TO HTTP://WEATHER.GOV AND CLICK ON CENTRAL ARKANSAS. 55
The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 7:08 PM CDT | Severe Thunderstorm Warning | LZK | Fulton, Izard, Sharp | 37 min |
| May 22, 7:51 PM CDT | Special Weather Statement | LZK | Sharp | 44 min |
| May 22, 8:30 PM CDT | Flash Flood Watch | LZK | Baxter, Cleburne, Conway, Faulkner, Fulton, Independence and 8 more | 59 hr |
| May 22, 8:31 PM CDT | Special Weather Statement | LZK | Boone, Marion | 44 min |
| May 22, 8:45 PM CDT | Severe Thunderstorm Warning | LZK | Boone, Marion | 30 min |
| May 22, 9:00 PM CDT | Severe Thunderstorm Warning | LZK | Boone | 30 min |
| May 22, 9:14 PM CDT | Flash Flood Warning | LZK | Baxter, Boone, Marion | 3 hr |
| May 22, 9:47 PM CDT | Special Weather Statement | LZK | Boone | 28 min |
| May 22, 10:01 PM CDT | Severe Thunderstorm Warning | LZK | Baxter, Marion | 29 min |
| May 22, 10:09 PM CDT | Special Weather Statement | LZK | Scott | 46 min |
| May 22, 10:20 PM CDT | Severe Thunderstorm Warning | LZK | Logan, Scott, Yell | 26 min |
| May 22, 10:22 PM CDT | Special Weather Statement | LZK | Newton, Searcy, Stone | 48 min |
| May 22, 10:37 PM CDT | Severe Thunderstorm Warning | LZK | Baxter, Izard, Marion, Searcy, Sharp, Stone | 53 min |
| May 22, 11:30 PM CDT | Special Weather Statement | LZK | Independence, Sharp, Stone | 45 min |
| May 22, 11:52 PM CDT | Severe Thunderstorm Warning | LZK | Jackson, White, Woodruff | 23 min |
| May 22, 11:58 PM CDT | Severe Thunderstorm Warning | LZK | Independence, Jackson, Sharp, Stone | 47 min |
| May 23, 12:07 AM CDT | Severe Thunderstorm Warning | LZK | Monroe, Woodruff | 23 min |
| May 23, 12:11 AM CDT | Severe Thunderstorm Warning | LZK | Boone, Marion | 31 min |
| May 23, 12:45 AM CDT | Special Weather Statement | LZK | Baxter, Marion | 45 min |
| May 23, 12:55 AM CDT | Special Weather Statement | LZK | Izard, Sharp | 45 min |
| May 23, 8:47 AM CDT | River Flood Warning | LZK | Calhoun, Ouachita | 5 days |
| May 23, 8:47 AM CDT | River Flood Warning | LZK | Bradley, Calhoun, Union | 15 days |
| May 23, 9:40 AM CDT | River Flood Advisory | LZK | Randolph | 36 hr |
| May 23, 12:57 PM CDT | Tornado Warning | LZK | Baxter, Fulton | 33 min |
| May 23, 1:19 PM CDT | Tornado Warning | LZK | Baxter, Fulton, Izard | 41 min |
| May 23, 1:30 PM CDT | Special Weather Statement | LZK | Baxter | 30 min |
| May 23, 1:47 PM CDT | Tornado Warning | LZK | Fulton, Izard, Sharp | 43 min |
| May 23, 3:06 PM CDT | River Flood Warning | LZK | Fulton, Sharp | 19 hr |
| May 23, 3:06 PM CDT | River Flood Warning | LZK | Lawrence, Randolph | 19 hr |
| May 23, 3:07 PM CDT | River Flood Warning | LZK | Izard, Stone | 4 days |
| May 23, 3:07 PM CDT | River Flood Warning | LZK | Independence | 7 days |
| May 23, 3:08 PM CDT | River Flood Warning | LZK | Randolph | 19 hr |
| May 23, 3:09 PM CDT | Severe Thunderstorm Warning | LZK | Boone, Newton | 51 min |
| May 23, 3:48 PM CDT | Severe Thunderstorm Warning | LZK | Johnson, Newton | 42 min |
| May 23, 3:54 PM CDT | Severe Thunderstorm Warning | LZK | Marion, Newton, Searcy | 15 min |
| May 23, 4:03 PM CDT | Severe Thunderstorm Warning | LZK | Johnson | 57 min |
| May 23, 4:23 PM CDT | Special Weather Statement | LZK | Conway, Van Buren | 47 min |
| May 23, 4:28 PM CDT | Special Weather Statement | LZK | White | 47 min |
| May 23, 4:28 PM CDT | Severe Thunderstorm Warning | LZK | Johnson, Newton, Pope | 47 min |
| May 23, 5:14 PM CDT | Special Weather Statement | LZK | Pope, Searcy | 46 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.