Alert archive / Arkansas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 778, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Aug 7, 2011, 3:32 PM CDT for Independence County, Jackson County, Arkansas. It was in force for 28 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
- Aug 7, 2011, 3:32 PM CDT (20:32 UTC)
- Expired
- Aug 7, 2011, 4:00 PM CDT
- In force
- 28 min
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
Counties Independence County, AR, Jackson County, AR
The radar
The Little Rock radar (KLZK), 122 km from the middle of the area, began a volume at 20:33 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, 8.5 hours before the alert went out and 161 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
- 2280 J/kg
- Mixed-layer CIN
- -140 J/kg
- Mixed-layer LCL
- 1283 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 122 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 Aug 7, 1:02 PM CDT, 2 hours 30 minutes earlier.
Area forecast discussion, Aug 7, 1:02 PM CDT, 2 hours 30 minutes before
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</html>Hazardous weather outlook, Aug 7, 4:15 AM CDT, 11 hours 17 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LITTLE ROCK AR 415 AM CDT SUN AUG 7 2011 ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-081000- 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- 415 AM CDT SUN AUG 7 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS. .DAY ONE...TODAY AND TONIGHT DANGEROUS HEAT WILL AGAIN PERSIST FOR TODAY AS HIGH TEMPERATURES WARM TO THE UPPER 90S TO AROUND 107 ACROSS THE AREA. HUMIDITY LEVELS WILL ALSO REMAIN HIGH...WITH HEAT INDICES EXPECTED TO TO RANGE FROM 105 TO 114 DEGREES FOR MANY LOCATIONS. A HEAT ADVISORY REMAINS IN EFFECT FOR TODAY. PEOPLE NEED TO TAKE THE HEAT SERIOUSLY. HEAT IS THE NUMBER ONE WEATHER RELATED KILLER IN THE UNITED STATES. SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON. ANY STORM THAT DOES FORM COULD BECOME STRONG TO SEVERE...WITH DAMAGING WINDS THE MAIN THREAT. THE BEST CHANCES FOR STORMS WILL BE ACROSS THE NORTHEAST HALF OF THE STATE...THOUGH ISOLATED STORMS COULD FORM FURTHER SOUTH. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY A HEAT ADVISORY WILL REMAIN IN EFFECT FOR A LARGE PORTION OF THE AREA ON MONDAY AS TEMPERATURES REMAIN IN THE UPPER 90S TO AROUND 106...AND AFTERNOON HEAT INDICES RANGE FROM 105 TO 114 DEGREES. THE UPPER LEVEL HIGH PRESSURE RESPONSIBLE FOR THE EXCESSIVE HEAT OVER THE PAST SEVERAL DAYS WILL SHIFT SLOWLY SOUTHWEST IN THE COMING DAYS. AS THIS UPPER LEVEL HIGH SHIFTS SOUTHWEST... A COLD FRONT WILL SLIDE SOUTH INTO ARKANSAS BY THE MIDDLE OF NEXT WEEK AND STALL. THIS WILL KEEP CHANCES FOR SCATTERED SHOWERS AND THUNDERSTORMS IN THE FORECAST FOR AT LEAST SOME PORTION OF THE STATE THROUGH THE END OF NEXT WEEK. AS A RESULT OF INCREASED RAIN CHANCES...THE THREAT FOR THE EXCESSIVE HEAT WILL SLOWLY DECREASE OVER TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. && VISIT NWS LITTLE ROCK ON THE WEB. GO TO HTTP://WEATHER.GOV AND CLICK ON CENTRAL ARKANSAS. 62
In the hours before
Special weather statement, Aug 7, 2:00 PM CDT, 1 hour 32 minutes before
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</html>Special weather statement, Aug 7, 2:57 PM CDT, 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LITTLE ROCK AR 257 PM CDT SUN AUG 7 2011 ARZ043-044-072040- PULASKI AR-SALINE AR- 257 PM CDT SUN AUG 7 2011 ...SIGNIFICANT WEATHER ADVISORY FOR EASTERN SALINE AND CENTRAL PULASKI COUNTIES UNTIL 345 PM CDT... AT 254 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR COLLEGEVILLE...OR NEAR BRYANT. THIS STORM WAS NEARLY STATIONARY. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN. * LOCATIONS IMPACTED INCLUDE... SW LITTLE ROCK... BRYANT... BENTON... SHANNON HILLS... OTTER CREEK... MABELVALE... HURRICANE LAKE... GEYER SPRINGS... WOODLAND HILLS... VIMY RIDGE... SHAW... SARDIS... PARKERS-IRON SPGS... EAST END... CONGO... CAMMACK VILLAGE... BAUXITE... BASELINE... THIS INCLUDES INTERSTATE 30 BETWEEN MILE MARKERS 118 AND 136. THIS INCLUDES INTERSTATE 430 BETWEEN MILE MARKERS 1 AND 7. THIS INCLUDES INTERSTATE 530 BETWEEN MILE MARKERS 7 AND 11. THIS INCLUDES INTERSTATE 630 BETWEEN MILE MARKERS 3 AND 7. IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. 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 3478 9233 3455 9225 3449 9255 3469 9262 TIME...MOT...LOC 1957Z 255DEG 2KT 3463 9246 BJS
Local storm report, Aug 7, 3:19 PM CDT, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
319 PM CDT SUN AUG 07 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0148 PM TSTM WND DMG BRYANT 34.61N 92.49W
08/07/2011 SALINE AR LAW ENFORCEMENT
A LARGE LIMB FELL ON A CAR ON ARKANSAS 5...DAMAGING THE
CAR.
0240 PM TSTM WND GST BENTON 34.57N 92.58W
08/07/2011 E70 MPH SALINE AR TRAINED SPOTTER
POWER LINES WERE BLOWN DOWN.
&&
28The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 8:19 PM CDT | Severe Thunderstorm Warning | LZK | Boone, Marion | 26 min |
| Aug 6, 8:46 PM CDT | Severe Thunderstorm Warning | LZK | Boone, Marion | 44 min |
| Aug 6, 8:48 PM CDT | Severe Thunderstorm Warning | LZK | Fulton | 42 min |
| Aug 6, 9:15 PM CDT | Severe Thunderstorm Warning | LZK | Izard, Sharp | 25 min |
| Aug 7, 1:05 PM CDT | Special Weather Statement | LZK | Pulaski | 45 min |
| Aug 7, 1:07 PM CDT | Severe Thunderstorm Warning | LZK | Pulaski | 38 min |
| Aug 7, 1:10 PM CDT | Special Weather Statement | LZK | Saline | 30 min |
| Aug 7, 1:14 PM CDT | Special Weather Statement | LZK | Hot Spring | 46 min |
| Aug 7, 1:34 PM CDT | Severe Thunderstorm Warning | LZK | Pulaski | 41 min |
| Aug 7, 1:39 PM CDT | Severe Thunderstorm Warning | LZK | Pulaski, Saline | 36 min |
| Aug 7, 1:57 PM CDT | Severe Thunderstorm Warning | LZK | Lonoke, Pulaski | 48 min |
| Aug 7, 2:00 PM CDT | Special Weather Statement | LZK | Saline | 45 min |
| Aug 7, 2:03 PM CDT | Special Weather Statement | LZK | Hot Spring | 47 min |
| Aug 7, 2:05 PM CDT | Severe Thunderstorm Warning | LZK | Grant, Saline | 40 min |
| Aug 7, 2:16 PM CDT | Special Weather Statement | LZK | Lonoke | 44 min |
| Aug 7, 2:22 PM CDT | Severe Thunderstorm Warning | LZK | Lonoke | 53 min |
| Aug 7, 2:23 PM CDT | Severe Thunderstorm Warning | LZK | Cleburne, Independence, Stone | 37 min |
| Aug 7, 2:30 PM CDT | Severe Thunderstorm Warning | LZK | Jefferson, Lonoke, Pulaski | 45 min |
| Aug 7, 2:57 PM CDT | Special Weather Statement | LZK | Pulaski | 43 min |
| Aug 7, 3:03 PM CDT | Severe Thunderstorm Warning | LZK | Grant, Jefferson, Saline | 16 min |
| Aug 7, 3:22 PM CDT | Severe Thunderstorm Warning | LZK | Cleburne, Independence, Stone | 38 min |
| Aug 7, 3:44 PM CDT | Special Weather Statement | LZK | Jefferson | 46 min |
| Aug 7, 3:59 PM CDT | Severe Thunderstorm Warning | LZK | Jackson, Woodruff | 46 min |
| Aug 7, 4:12 PM CDT | Severe Thunderstorm Warning | LZK | Desha, Drew, Lincoln | 48 min |
| Aug 7, 4:14 PM CDT | Severe Thunderstorm Warning | LZK | Arkansas, Jefferson | 34 min |
| Aug 7, 4:24 PM CDT | Severe Thunderstorm Warning | LZK | White, Woodruff | 31 min |
| Aug 7, 4:52 PM CDT | Special Weather Statement | LZK | Clark, Cleveland, Dallas, Lincoln | 43 min |
| Aug 7, 5:16 PM CDT | Severe Thunderstorm Warning | LZK | Woodruff | 29 min |
| Aug 7, 5:20 PM CDT | Severe Thunderstorm Warning | LZK | Bradley, Drew | 26 min |
| Aug 7, 5:28 PM CDT | Severe Thunderstorm Warning | LZK | Dallas | 32 min |
| Aug 7, 5:40 PM CDT | Severe Thunderstorm Warning | LZK | Montgomery, Polk | 50 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.