Alert archive / Arkansas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 268, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Jul 26, 2012, 6:00 PM CDT for Polk County, Scott County, 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 26, 2012, 6:00 PM CDT (23:00 UTC)
- Expired
- Jul 26, 2012, 6:45 PM CDT
- In force
- 45 min
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
Counties Polk County, AR, Scott County, AR
The radar
The Western Arkansas radar (KSRX), 71 km from the middle of the area, began a volume at 23:01 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 |
|---|---|---|---|
| Jul 26, 5:46 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 11.0 hours before the alert went out and 250 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
- 854 J/kg
- Mixed-layer CIN
- -110 J/kg
- Mixed-layer LCL
- 1336 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 168 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.7
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 26, 3:09 PM CDT, 2 hours 51 minutes earlier.
Area forecast discussion, Jul 26, 3:09 PM CDT, 2 hours 51 minutes before
AREA FORECAST DISCUSSION...UPDATE FOR AVIATION NATIONAL WEATHER SERVICE LITTLE ROCK AR 635 PM CDT THU JUL 2012 .AVIATION... SCATTERED SHOWERS AND THUNDERSTORMS WILL EFFECT ALL TAFS OVER THE 12 HOURS...ESPECIALLY THIS EVENING TO AROUND MIDNIGHT. THEN CONVECTION WILL LOWER IN COVERAGE AND INTENSITY. MAINLY VFR CEILINGS WITH PATCHY MVFR CEILINGS WITH STORMS. A COLD FRONT WILL SLOWLY DRIFT INTO AR AND DEVELOP THE CONVECTION. WINDS SW 5 TO 15 KNOTS SOUTH OF THE FRONT WHILE W TO NW AT 5 TO 15 KNOTS NORTH OF THE FRONT. FRIDAY THE SCATTERED CONVECTION SHOULD BE OVER SOUTH CENTRAL TO SOUTH AR. (59) && .PREV DISCUSSION... /ISSUED 309 PM CDT THU JUL 26 2012/ .SHORT TERM...TONIGHT THROUGH SUNDAY NIGHT COLD FRONT LOCATED ROUGHLY ALONG THE INTERSTATE 44 CORRIDOR IN SOUTHERN MISSOURI...AND WILL CONTINUE TO MOVE SOUTH. ISOLATED CONVECTION HAS DEVELOP ACROSS NORTH CENTRAL ARKANSAS THIS AFTERNOON...WITH MORE WIDESPREAD CONVECTION ACROSS THE FAR NORTHWEST. WITH SOME DRIER AIR NEAR THE FRONT...THERE IS THE POTENTIAL FOR STRONG TO SEVERE WINDS ACROSS NORTHERN ARKANSAS. WITH ANY FIRES...THE DRASTIC WIND CHANGES WILL BE OF GREAT CONCERN. THERE IS A SLIGHT RISK ACROSS THE NORTH...WITH THE POTENTIAL MOSTLY CONFINED THROUGH THE EARLY EVENING HOURS. RAIN CHANCES WILL DECREASE THROUGH THE OVERNIGHT HOURS...BEFORE PICKING BACK UP AS THE FRONT MOVES INTO SOUTHERN ARKANSAS SATURDAY. THE OTHER CONCERN FOR SATURDAY WILL BE TEMPERATURES...ESPECIALLY BEHIND THE FRONT WITH DRIER AIR MIXING DOWN. HAVE GONE 5 OR MORE DEGREES ABOVE GUIDANCE...WITH READINGS APPROACHING 100 DEGREES. WITH THE LOWER DEWPOINTS ACROSS THE NORTH...HEAT HEADLINES ARE NOT EXPECTED. ALSO...CLOUD COVER AND RAINFALL WILL TEMPER READINGS ACROSS THE SOUTH...AND HELP KEEP HEAT INDEX READINGS IN CHECK THERE. UPPER RIDGE QUICKLY BUILDS BACK IN BEHIND THE FRONT FRIDAY NIGHT INTO SATURDAY...WITH DRY AND HOT CONDITIONS CONTINUING. MODELS ARE HINTING AT A WEAK FRONT MOVING ACROSS THE REGION SATURDAY NIGHT INTO SUNDAY...BUT HAVE LEFT A DRY FORECAST AT THIS TIME. && .LONG TERM...MONDAY THROUGH THURSDAY HIGH PRESSURE OVER THE SOUTHERN PLAINS WILL CONTINUE TO BE THE DOMINANT WEATHER FEATURE ACROSS ARKANSAS IN THE EXTENDED PERIOD. A COLD FRONT WILL TRY TO NUDGE INTO THE REGION FROM THE NORTH/EAST...BUT WILL PROBABLY FAIL AS IT ENCOUNTERS THE RIDGE. THE PROXIMITY OF THE FRONT...AND TROPICAL MOISTURE OVER THE SOUTHEAST UNITED STATES MAY LEAD TO AT LEAST ISOLATED THUNDERSTORMS IN THE EASTERN HALF OF THE STATE. OTHERWISE...IT WILL BE MOSTLY DRY AND HOT...WITH ABOVE NORMAL TEMPERATURES. && .LZK WATCHES/WARNINGS/ADVISORIES... HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR ARKANSAS-BAXTER- CLEBURNE-CONWAY-DESHA-DREW-FAULKNER-FULTON-INDEPENDENCE-IZARD- JACKSON-JEFFERSON-JOHNSON-LINCOLN-LOGAN-LONOKE-MONROE-PERRY-POPE- PRAIRIE-PULASKI-SHARP-STONE-WHITE-WOODRUFF-YELL. && SHORT TERM...58 / LONG TERM...46
Hazardous weather outlook, Jul 26, 1:25 PM CDT, 4 hours 35 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE LITTLE ROCK AR 125 PM CDT THU JUL 26 2012 ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-271000- 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- 125 PM CDT THU JUL 26 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP THROUGH TONIGHT...MAINLY IN THE NORTHWEST HALF OF ARKANSAS. SOME OF THE STORMS WILL LIKELY BE SEVERE...WITH DAMAGING WIND GUSTS THE MAIN CONCERN. TEMPERATURES THIS AFTERNOON WILL REACH THE UPPER 90S TO AROUND 105 DEGREES. COMBINED WITH MOISTURE IN THE AIR...HEAT INDEX VALUES WILL RANGE FROM 105 TO 110 DEGREES IN THE EASTERN HALF OF THE STATE...AND ALSO ALONG THE ARKANSAS RIVER FROM LITTLE ROCK WESTWARD. A HEAT ADVISORY REMAINS POSTED FOR THESE AREAS THROUGH EARLY THIS EVENING. A HIGH TO EXTREME WILDFIRE DANGER CONTINUES ACROSS ARKANSAS DUE TO DROUGHT CONDITIONS AND DRY VEGETATION. MOST COUNTIES HAVE BURN BANS IN PLACE. OUTDOOR BURNING OF ANY KIND IS STRONGLY DISCOURAGED. WINDS OF 10 TO 15 MPH...WITH GUSTS AS HIGH AS 25 MPH WILL BE NOTED THROUGH THIS EVENING...WHICH WILL SPREAD ANY FIRES THAT START. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY HIT AND MISS THUNDERSTORMS WILL REMAIN POSSIBLE ON FRIDAY... ESPECIALLY FROM CENTRAL INTO SOUTHERN ARKANSAS. THIS WILL BE AHEAD OF A COLD FRONT PUSHING INTO THE REGION FROM THE NORTH. ISOLATED STORMS COULD BECOME SEVERE. THE FRONT WILL WASH THIS WEEKEND...WITH HIGH PRESSURE IN THE PLAINS BUILDING OVER ARKANSAS. UNDER THE HIGH...HEAT WILL CONTINUE TO BE A SIGNIFICANT CONCERN. HEAT INDEX VALUES WILL RANGE FROM 100 TO 105 DEGREES DURING THE AFTERNOON...WITH INDICES EXCEEDING 105 DEGREES IN SOME LOCATIONS. BY SUNDAY AND INTO MONDAY...HEAT ADVISORIES MAY BECOME NECESSARY. THE WILDFIRE DANGER IS EXPECTED TO REMAIN HIGH TO EXTREME THROUGH THE PERIOD WITH HOT AND DRY CONDITIONS. .SPOTTER INFORMATION STATEMENT... SINCE WIDESPREAD OR ORGANIZED SEVERE WEATHER IS NOT EXPECTED... 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. 57/46
In the hours before
Special weather statement, Jul 26, 3:55 PM CDT, 2 hours 5 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LITTLE ROCK AR 355 PM CDT THU JUL 26 2012 ARZ005-262125- BAXTER AR- 355 PM CDT THU JUL 26 2012 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL BAXTER COUNTY UNTIL 430 PM CDT... AT 353 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 2 MILES NORTHWEST OF BRIARCLIFF...OR NEAR MOUNTAIN HOME...MOVING EAST AT 15 MPH. WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM. * LOCATIONS IMPACTED INCLUDE... MOUNTAIN HOME... SALESVILLE... RODNEY... ROBINSON PT LNDG... NORFORK DAM... NORFORK... DIAMOND BAY... COLFAX... BRIARCLIFF... JORDAN... HENDERSON... WOOD PT PARK... WOLF KNOB... WILD HOG MTN... WESTERN HILLS SUBDVN... WALLACE KNOB... TIMBER LAKE MANOR... SYCAMORE SPRING... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. LAT...LON 3640 9217 3619 9216 3622 9243 3637 9244 TIME...MOT...LOC 2055Z 270DEG 14KT 3629 9231 64
Special weather statement, Jul 26, 4:38 PM CDT, 1 hour 22 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LITTLE ROCK AR 438 PM CDT THU JUL 26 2012 ARZ021-022-030-038-262225- JOHNSON AR-LOGAN AR-POPE AR-YELL AR- 438 PM CDT THU JUL 26 2012 ...SIGNIFICANT WEATHER ADVISORY FOR EXTREME NORTHEASTERN YELL... WESTERN POPE...NORTHEASTERN LOGAN AND SOUTHERN JOHNSON COUNTIES UNTIL 530 PM CDT... AT 435 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 2 MILES NORTHWEST OF LONDON...OR 10 MILES NORTHWEST OF RUSSELLVILLE...MOVING EAST AT 10 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM. * LOCATIONS IMPACTED INCLUDE... RUSSELLVILLE... TARAL... PINEY BAY REC AREA... LONDON... LAKE DARDANELLE... KNOXVILLE... DOVER... DARDANELLE LOCK AND DAM... DARDANELLE... CABIN CREEK REC AREA... PINEY... NEW BLAINE... LUDWIG... DELAWARE... AUGSBURG... TUCKER MTN... SHOAL BAY REC AREA... SHINN MTN... THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 65 AND 81. IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. LAT...LON 3546 9309 3519 9316 3529 9348 3541 9343 TIME...MOT...LOC 2138Z 280DEG 9KT 3536 9327 225
Local storm report, Jul 26, 5:29 PM CDT, 31 minutes before
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</html>Special weather statement, Jul 26, 5:30 PM CDT, 30 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LITTLE ROCK AR 530 PM CDT THU JUL 26 2012 ARZ022-031-262315- CONWAY AR-POPE AR- 530 PM CDT THU JUL 26 2012 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN POPE AND WESTERN CONWAY COUNTIES UNTIL 615 PM CDT... AT 526 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 2 MILES NORTH OF ATKINS...OR 11 MILES EAST OF RUSSELLVILLE...MOVING EAST AT 30 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM. * LOCATIONS IMPACTED INCLUDE... ST. VINCENT... HATTIEVILLE... HAPPY BEND... ATKINS... WONDERVIEW... KENWOOD... ECONOMY... BLACKWELL... WILDCAT MTN... WESLEY CHAPEL... OLD HICKORY... HICKORY HILL... DEVILS KNOB... CARGILE LAKE... BOYD MTN... THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 90 AND 106. IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. LAT...LON 3536 9269 3516 9274 3525 9303 3535 9301 TIME...MOT...LOC 2230Z 277DEG 26KT 3527 9291 225
Special weather statement, Jul 26, 5:38 PM CDT, 22 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LITTLE ROCK AR 538 PM CDT THU JUL 26 2012 ARZ004>006-014-015-262325- BAXTER AR-FULTON AR-IZARD AR-MARION AR-STONE AR- 538 PM CDT THU JUL 26 2012 ...SIGNIFICANT WEATHER ADVISORY FOR EXTREME NORTHERN STONE...EXTREME SOUTHEASTERN MARION...NORTHERN IZARD...WESTERN FULTON AND CENTRAL BAXTER COUNTIES UNTIL 630 PM CDT... AT 535 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING AN AREA OF STRONG THUNDERSTORMS...NEAR BRIARCLIFF...OR 7 MILES SOUTHEAST OF MOUNTAIN HOME...MOVING EAST AT 15 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM. * LOCATIONS IMPACTED INCLUDE... SALEM... MOUNTAIN HOME... WIDEMAN... VIOLA... STURKIE... SHIPP... SALESVILLE... SALEM ARPT... RODNEY... ROBINSON PT LNDG... PUSH MTN... PINEVILLE... OXFORD... NORFORK DAM... NORFORK... MORRISTON... HERRON... GORBY... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. LAT...LON 3611 9177 3605 9242 3635 9241 3651 9179 TIME...MOT...LOC 2238Z 255DEG 14KT 3629 9226 /59
Special weather statement, Jul 26, 5:53 PM CDT, 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
553 PM CDT THU JUL 26 2012
ARZ006-007-015-016-262340-
FULTON AR-INDEPENDENCE AR-IZARD AR-SHARP AR-
553 PM CDT THU JUL 26 2012
...SIGNIFICANT WEATHER ADVISORY FOR SHARP...EASTERN IZARD...EXTREME
NORTHERN INDEPENDENCE AND SOUTHEASTERN FULTON COUNTIES UNTIL 645 PM
CDT...
AT 552 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
AN AREA OF STRONG THUNDERSTORMS OVER FULTON AND SHARP COUNIES...WITH
THE STRONGEST STORMS...2 MILES SOUTHEAST OF MYRON...OR 7 MILES
SOUTHWEST OF ASH FLAT...MOVING EAST AT 15 MPH.
HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM.
* LOCATIONS IMPACTED INCLUDE...
ASH FLAT... SIDNEY... MYRON...
MORRISTON... LAKE THUNDERBIRD... LAKE OMAHA...
HORSESHOE BEND... HARDY... FRANKLIN...
CHEROKEE VILLAGE... CAVE CITY... BALLARD...
ZION... WILLIFORD... SITKA...
POUGHKEEPSIE... OZARK ACRES... NELSONVILLE...
IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.
LAT...LON 3624 9130 3624 9132 3622 9134 3606 9134
3590 9136 3595 9178 3634 9178 3635 9128
TIME...MOT...LOC 2253Z 257DEG 15KT 3615 9168
/59The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 2:59 AM CDT | Heat Advisory | LZK | Arkansas, Baxter, Cleburne, Conway, Desha, Drew and 16 more | 15 hr |
| Jul 26, 1:33 PM CDT | Special Weather Statement | LZK | Stone | 47 min |
| Jul 26, 3:13 PM CDT | Special Weather Statement | LZK | Boone | 47 min |
| Jul 26, 3:55 PM CDT | Special Weather Statement | LZK | Baxter | 30 min |
| Jul 26, 4:38 PM CDT | Special Weather Statement | LZK | Pope | 47 min |
| Jul 26, 4:41 PM CDT | Severe Thunderstorm Warning | LZK | Baxter, Fulton, Izard | 34 min |
| Jul 26, 4:48 PM CDT | Severe Thunderstorm Warning | LZK | Pope | 42 min |
| Jul 26, 5:05 PM CDT | Severe Thunderstorm Warning | LZK | Baxter, Searcy, Stone | 25 min |
| Jul 26, 5:19 PM CDT | Severe Thunderstorm Warning | LZK | Fulton, Sharp | 41 min |
| Jul 26, 5:25 PM CDT | Severe Thunderstorm Warning | LZK | Logan, Scott | 50 min |
| Jul 26, 5:30 PM CDT | Special Weather Statement | LZK | Conway | 45 min |
| Jul 26, 5:38 PM CDT | Special Weather Statement | LZK | Baxter, Fulton | 47 min |
| Jul 26, 5:40 PM CDT | Severe Thunderstorm Warning | LZK | Conway, Van Buren | 35 min |
| Jul 26, 5:50 PM CDT | Severe Thunderstorm Warning | LZK | Pope, Searcy, Stone, Van Buren | 25 min |
| Jul 26, 5:53 PM CDT | Special Weather Statement | LZK | Sharp | 47 min |
| Jul 26, 6:02 PM CDT | Severe Thunderstorm Warning | LZK | Johnson, Logan, Pope, Yell | 28 min |
| Jul 26, 6:14 PM CDT | Special Weather Statement | LZK | Van Buren | 46 min |
| Jul 26, 6:14 PM CDT | Severe Thunderstorm Warning | LZK | Conway, Faulkner, Van Buren | 31 min |
| Jul 26, 6:31 PM CDT | Severe Thunderstorm Warning | LZK | Conway, Perry, Pope, Yell | 44 min |
| Jul 26, 6:44 PM CDT | Special Weather Statement | LZK | Cleburne | 41 min |
| Jul 26, 6:48 PM CDT | Special Weather Statement | LZK | Scott | 47 min |
| Jul 26, 6:59 PM CDT | Special Weather Statement | LZK | Independence, Jackson | 46 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2012Every severe thunderstorm warning in 2012
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.