Alert archive / Arkansas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 103, NWS Little Rock, AR

May 7, 2012Cleburne County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at May 7, 2012, 3:53 AM CDT for Cleburne 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 7, 2012, 3:53 AM CDT (08:53 UTC)
Expired: May 7, 2012, 4:30 AM CDT
In force: 37 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon

County Cleburne County, AR

The radar

The Little Rock radar (KLZK), 81 km from the middle of the area, began a volume at 08:54 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 00:00Z, 8.9 hours before the alert went out and 205 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1694 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 1441 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 59 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 7, 3:44 AM CDT, 9 minutes earlier.

Area forecast discussion, May 7, 3:44 AM CDT, 9 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LITTLE ROCK AR
344 AM CDT MON MAY 7 2012

.SHORT TERM...TODAY THROUGH THURSDAY NIGHT

CONVECTION HAS INCREASED ACROSS NORTH CENTRAL ARKANSAS IN THE LAST
HOUR...AS WEAK DISTURBANCE MOVES ACROSS SOUTHERN MISSOURI AND
NORTHERN ARKANSAS AHEAD OF SURFACE COLD FRONT. SOME SMALL HAIL IS
POSSIBLE WITH THIS ACTIVITY...BUT NOT EXPECTING SEVERE CRITERIA TO
BE MET EARLY THIS MORNING.

ATTENTION WILL TURN TO THE COLD FRONT CURRENTLY NORTH OF INTERSTATE
44 IN OKLAHOMA AND MISSOURI. AS SURFACE LOW MOVES INTO THE GREAT
LAKE REGION TODAY...THE PROGRESSION OF THE FRONT WILL SLOW
DOWN...AND KEEP RAIN CHANCES OVER MUCH OF THE STATE TODAY. THE
HIGHEST RAIN CHANCES WILL BE ACROSS THE NORTH AND EAST...AS UPPER
ENERGY WILL ALLOW THE BEST LIFT ACROSS THESE AREAS.

THERE IS A SLIGHT RISK OF SEVERE STORMS ACROSS THE ENTIRE AREA
TODAY. WHILE WEAK WIND SHEAR WILL PRECLUDE A TORNADO
RISK...DOWNBURST WINDS AND LARGE HAIL WILL BE POSSIBLE DUE TO
INSTABILITY LEVELS AND HIGH DEWPOINTS/MOISTURE AMOUNTS ACROSS THE
AREA.

EVEN WITH THE SCATTERED TO NUMEROUS THUNDERSTORMS...RAINFALL AMOUNTS
WILL GENERALLY REMAIN UNDER AN INCH...WITH THE HIGHEST TOTALS ACROSS
THE EAST.

AS THE SURFACE LOW CONTINUES TO MOVE OFF TO THE NORTHEAST...THE
FRONT WILL STALL ACROSS SOUTHERN ARKANSAS TONIGHT...WITH RAIN
CHANCES CONTINUING INTO TUESDAY ACROSS THE SOUTHERN HALF OF THE
STATE.

COOLER AIR COURTESY OF CANADIAN HIGH PRESSURE WILL FOLLOW THE
FRONT...WITH TEMPERATURES RETURNING TO NEAR NORMAL READINGS FOR
TUESDAY AND BEYOND. HIGHS WILL GENERALLY BE IN THE 70S...WITH LOWS
IN THE UPPER 40S AND 50S.
&&

.LONG TERM...FRIDAY THROUGH SUNDAY

HIGH PRESSURE WILL BE OVER THE STATE ON FRIDAY AND BRING DRY WEATHER
AND CLOSER TO NORMAL TEMPERATURES TO THE STATE. LATE ON SATURDAY A
COLD FRONT IS FORECAST TO SAG INTO THE STATE AND BRING A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS. ON SUNDAY THE FRONT SHOULD SLIP
A BIT MORE SOUTH WHERE ANY CONVECTION WOULD BE FOCUSED. UNCERTAINTY
REMAINS IN THE MODELS AND THIS FORECAST MAY BE ADJUSTED.
TEMPERATURES WILL BE MUCH CLOSER TO NORMAL IN THE EXTENDED FORECAST.
&&

.LZK WATCHES/WARNINGS/ADVISORIES...NONE.
&&

SHORT TERM...58 / LONG TERM...59

Hazardous weather outlook, May 6, 9:40 PM CDT, 6 hours 13 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE LITTLE ROCK AR
940 PM CDT SUN MAY 6 2012

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-071000-
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-
940 PM CDT SUN MAY 6 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS.

.DAY ONE...REST OF TONIGHT

LATER TONIGHT...A COLD FRONT WILL APPROACH NORTHERN ARKANSAS...WITH
SHOWERS AND THUNDERSTORMS DEVELOPING AHEAD OF FRONT...AND EVENTUALLY
MOVING INTO PARTS OF NORTHERN ARKANSAS DURING THE LATE NIGHT HOURS.
THERE IS A SLIGHT RISK OF SEVERE STORMS ACROSS THE NORTH AND WEST...
OR IN AREAS NORTH OF A LINE FROM MENA TO MAMMOTH SPRING. THE MAIN
CONCERNS WILL BE LARGE HAIL AND DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THE COLD FRONT WILL MOVE THROUGH THE STATE MONDAY...WITH SHOWERS AND
THUNDERSTORMS REMAINING IN THE FORECAST. A SLIGHT RISK OF SEVERE
WEATHER IS POSSIBLE ACROSS MUCH OF THE STATE MONDAY...WITH LARGE
HAIL AND DAMAGING WINDS POSSIBLE.

THE FRONT WILL STALL OVER SOUTHERN ARKANSAS MONDAY NIGHT INTO
TUESDAY...WITH SMALL RAIN CHANCES CONTINUING. CANADIAN HIGH PRESSURE
WILL FINALLY PUSH THE FRONT OUT OF THE STATE WEDNESDAY...WITH
TEMPERATURES RETURNING TO NEAR NORMAL FOR THE REST OF THE WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED ON MONDAY.

&&

VISIT NWS LITTLE ROCK ON THE WEB. GO TO HTTP://WEATHER.GOV AND
CLICK ON CENTRAL ARKANSAS.

58/44

In the hours before

Special weather statement, May 7, 3:19 AM CDT, 34 minutes before

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Special weather statement, May 7, 3:30 AM CDT, 23 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
330 AM CDT MON MAY 7 2012

ARZ006-007-015-070930-
FULTON AR-IZARD AR-SHARP AR-
330 AM CDT MON MAY 7 2012

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN SHARP...NORTHEASTERN
IZARD AND FULTON COUNTIES UNTIL 430 AM CDT...

AT 324 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
AN AREA OF STRONG THUNDERSTORMS...5 MILES WEST OF MORRISTON...OR 6
MILES SOUTHWEST OF SALEM...MOVING EAST AT 20 MPH.

SMALL HAIL FROM PEA UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS
UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH FREQUENT
DANGEROUS LIGHTNING. HEAVY RAIN WILL ALSO BE POSSIBLE.

* LOCATIONS IMPACTED INCLUDE...
  SALEM...              ASH FLAT...           STURKIE...
  SALEM ARPT...         SADDLER FALLS...      OXFORD...
  MYRON...              MORRISTON...          MAMMOTH SPRING SP...
  MAMMOTH SPRING...     LAKE THUNDERBIRD...   LAKE OMAHA...
  HORSESHOE BEND...     HARDY...              FRENCH...
  FRANKLIN...           FLINT SPRINGS...      CHEROKEE VILLAGE...

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LAT...LON 3650 9142 3616 9136 3608 9202 3644 9198
      3651 9170
TIME...MOT...LOC 0829Z 257DEG 18KT 3629 9183

/59

Special weather statement, May 7, 3:40 AM CDT, 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
340 AM CDT MON MAY 7 2012

ARZ016-025-033-070940-
INDEPENDENCE AR-JACKSON AR-WHITE AR-
340 AM CDT MON MAY 7 2012

...SIGNIFICANT WEATHER ADVISORY FOR EXTREME NORTHERN WHITE...CENTRAL
JACKSON AND INDEPENDENCE COUNTIES UNTIL 445 AM CDT...

AT 337 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
AN AREA OF STRONG THUNDERSTORMS...NEAR WRENTON...OR 11 MILES SOUTH
OF BATESVILLE...MOVING EAST AT 15 MPH.

SMALL HAIL FROM PEA UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS
UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH FREQUENT
DANGEROUS LIGHTNING...AND HEAVY RAIN.

* LOCATIONS IMPACTED INCLUDE...
  NEWPORT...            DIAZ...               BATESVILLE...
  SALADO...             PLEASANT PLAINS...    OIL TROUGH...
  NEWARK...             MOOREFIELD...         MAGNESS...
  JACKSONPORT...        THIDA...              SULPHUR ROCK...
  ROSIE...              ROOSEVELT...          OLYPHANT...
  MACKS...              HUTCHINSON...         HUFF...

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LAT...LON 3589 9128 3552 9120 3550 9174 3576 9173
TIME...MOT...LOC 0840Z 250DEG 12KT 3562 9167

/59

Special weather statement, May 7, 3:48 AM CDT, 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
348 AM CDT MON MAY 7 2012

ARZ014>016-024-070935-
CLEBURNE AR-INDEPENDENCE AR-IZARD AR-STONE AR-
348 AM CDT MON MAY 7 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN STONE...SOUTHERN
IZARD...WESTERN INDEPENDENCE AND NORTHERN CLEBURNE COUNTIES UNTIL 430
AM CDT...

AT 346 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
AN AREA OF STRONG THUNDERSTORMS...4 MILES SOUTH OF LUBER...OR 11
MILES SOUTH OF MOUNTAIN VIEW...MOVING EAST AT 15 MPH.

SMALL HAIL FROM PEA UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS
UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH FREQUENT
DANGEROUS LIGHTNING. HEAVY RAIN WILL ALSO BE SEEN.

* LOCATIONS IMPACTED INCLUDE...
  MOUNTAIN VIEW...      MELROSE...            LUBER...
  HERPEL...             GREERS FERRY...       GID...
  CUSHMAN...            CROKER...             CONCORD...
  WOODROW...            TWIN CREEK...         SAINT JAMES...
  PRIM...               PARMA...              MARCELLA...
  LAFFERTY...           IDA...                HIGDEN...

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LAT...LON 3600 9173 3558 9174 3554 9225 3596 9208
TIME...MOT...LOC 0848Z 249DEG 13KT 3571 9209

/59

The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 7, 3:19 AM CDT	Special Weather Statement	LZK	Cleburne	31 min
May 7, 3:30 AM CDT	Special Weather Statement	LZK	Fulton, Izard, Sharp	60 min
May 7, 3:40 AM CDT	Special Weather Statement	LZK	Independence, Jackson	60 min
May 7, 3:48 AM CDT	Special Weather Statement	LZK	Cleburne	47 min
May 7, 4:20 AM CDT	Special Weather Statement	LZK	White	30 min
May 7, 4:37 AM CDT	Special Weather Statement	LZK	Fulton, Izard, Sharp	58 min
May 7, 4:49 AM CDT	Special Weather Statement	LZK	Monroe, Woodruff	46 min
May 7, 4:59 AM CDT	Special Weather Statement	LZK	Jackson, White	56 min
May 7, 5:20 AM CDT	Severe Thunderstorm Warning	LZK	White	25 min
May 7, 5:47 AM CDT	Severe Thunderstorm Warning	LZK	White, Woodruff	13 min
May 7, 5:51 AM CDT	Severe Thunderstorm Warning	LZK	Monroe, Prairie, White, Woodruff	24 min
May 7, 5:59 AM CDT	Special Weather Statement	LZK	Monroe	46 min
May 7, 6:14 AM CDT	Flash Flood Warning	LZK	Jackson, Woodruff	3 hr
May 7, 6:15 AM CDT	Special Weather Statement	LZK	Lonoke, Prairie, White, Woodruff	45 min
May 7, 6:21 AM CDT	Flash Flood Warning	LZK	Monroe, Woodruff	3 hr
May 7, 6:53 AM CDT	Special Weather Statement	LZK	Monroe	57 min
May 7, 6:58 AM CDT	Special Weather Statement	LZK	Monroe, Prairie	47 min
May 7, 9:26 AM CDT	Flash Flood Warning	LZK	Monroe, Prairie	86 min
May 7, 3:17 PM CDT	Special Weather Statement	LZK	Scott	43 min
May 7, 3:31 PM CDT	Severe Thunderstorm Warning	LZK	Polk, Scott	44 min
May 7, 3:36 PM CDT	Special Weather Statement	LZK	Polk	44 min
May 7, 3:58 PM CDT	Severe Thunderstorm Warning	LZK	Montgomery, Polk	47 min
May 7, 4:14 PM CDT	Severe Thunderstorm Warning	LZK	Polk	46 min
May 7, 4:43 PM CDT	Severe Thunderstorm Warning	LZK	Pike	47 min
May 7, 5:06 PM CDT	Special Weather Statement	LZK	Dallas	44 min
May 7, 5:13 PM CDT	Severe Thunderstorm Warning	LZK	Dallas	47 min
May 7, 5:17 PM CDT	Severe Thunderstorm Warning	LZK	Clark, Pike	43 min
May 7, 5:40 PM CDT	Severe Thunderstorm Warning	LZK	Dallas	50 min
May 7, 6:20 PM CDT	Special Weather Statement	LZK	Clark	45 min
May 7, 6:25 PM CDT	Special Weather Statement	LZK	Ouachita	45 min
May 7, 6:47 PM CDT	Special Weather Statement	LZK	Lincoln	43 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2012 Every 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.