Alert archive / Arkansas / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 545, NWS Little Rock, AR

June 13, 2011Marion County, Searcy County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Jun 13, 2011, 3:28 PM CDT for Marion County, Searcy County, Arkansas. It was in force for 35 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
Jun 13, 2011, 3:28 PM CDT (20:28 UTC)
Expired
Jun 13, 2011, 4:03 PM CDT
In force
35 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon

Counties Marion County, AR, Searcy County, AR

The radar

The Springfield radar (KSGF), 142 km from the middle of the area, began a volume at 20:31 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.

IssuedProductOfficeLasted
Jun 13, 10:05 AM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 8.5 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.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2011-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2484 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2011-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 305 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
2484 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
967 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
305 m²/s²
0-3 km storm-relative helicity
284 m²/s²
Significant tornado parameter
3.3
Supercell composite
21.9

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 Jun 13, 3:04 PM CDT, 24 minutes earlier.

Area forecast discussion, Jun 13, 3:04 PM CDT, 24 minutes before
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Hazardous weather outlook, Jun 13, 10:25 AM CDT, 5 hours 3 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1025 AM CDT MON JUN 13 2011

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-141000-
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-
1025 AM CDT MON JUN 13 2011

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

A FRONT WILL REMAIN STALLED ACROSS NORTHEAST ARKANSAS THROUGH THIS
EVENING. THUNDERSTORMS IN MISSOURI WILL TRACK ALONG THE FRONT...AND
WILL AFFECT AREAS MAINLY NORTHEAST OF MOUNTAIN HOME...HEBER
SPRINGS...SEARCY AND BRINKLEY.

A FEW STORMS COULD BE SEVERE IN NORTHEAST SECTIONS OF THE STATE.
DAMAGING WINDS WILL BE THE MAIN CONCERN.

ACROSS THE REMAINDER OF THE STATE...A RIDGE OF HIGH PRESSURE IN
TEXAS WILL PROVIDE MOSTLY DRY AND HOT CONDITIONS. ABOVE NORMAL
TEMPERATURES IN THE 90S ARE EXPECTED. MAXIMUM HEAT INDEX VALUES WILL
BE AROUND 100 DEGREES IN THE SOUTHERN COUNTIES.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

HIGH PRESSURE WILL REMAIN DOMINANT ON TUESDAY. IT WILL BE MOSTLY DRY
AND HOT...WITH AFTERNOON HEAT INDEX VALUES AROUND 100 DEGREES IN THE
CENTRAL AND SOUTHERN COUNTIES.

ON WEDNESDAY AND THURSDAY...A NEW COLD FRONT WILL PUSH INTO THE
REGION...WITH ISOLATED TO SCATTERED THUNDERSTORMS IN THE FORECAST.
SOME STORMS COULD BE SEVERE...MAINLY OVER NORTHERN AND CENTRAL
ARKANSAS.

THE FRONT WILL MOVE BACK TO THE NORTH BY THE UPCOMING WEEKEND...
AND RAIN CHANCES WILL DECREASE. ANY STORMS WILL BE ISOLATED.

.SPOTTER INFORMATION STATEMENT...

SEVERE WEATHER SHOULD REMAIN ISOLATED THIS AFTERNOON AND EVENING.
GIVEN THIS...SPOTTER ACTIVATION IS NOT ANTICIPATED.

&&

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

59/46

In the hours before

Special weather statement, Jun 13, 1:57 PM CDT, 1 hour 31 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
157 PM CDT MON JUN 13 2011

ARZ024-131925-
CLEBURNE AR-
157 PM CDT MON JUN 13 2011

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN CLEBURNE COUNTY
UNTIL 230 PM CDT...

AT 155 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR WOLF BAYOU...OR 8 MILES SOUTHWEST OF
MELROSE.  THIS STORM WAS NEARLY STATIONARY.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  HEBER SPRINGS...      GREERS FERRY DAM...   CONCORD...
  WILBURN...            IDA...                DRASCO...
  WOLF BAYOU...         TUMBLING SHOALS...
  OLD HWY 25 REC AREA...                      MAGNESS LAKE...
  HEBER SPGS MUNI ARPT...                     FIVEMILE...
  DAM SITE MARINA...    BULLARD LAKE...       BANNER...

LAT...LON 3548 9180 3548 9205 3570 9201 3570 9179
TIME...MOT...LOC 1857Z 000DEG 1KT 3564 9190

46
Special weather statement, Jun 13, 2:33 PM CDT, 55 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 10:03 AM CDTRiver Flood WarningLZKJackson, Woodruff6 days
Jun 13, 1:10 PM CDTSevere Thunderstorm WarningLZKMonroe, Woodruff65 min
Jun 13, 1:57 PM CDTSpecial Weather StatementLZKCleburne28 min
Jun 13, 2:08 PM CDTSevere Thunderstorm WarningLZKMonroe42 min
Jun 13, 2:11 PM CDTSevere Thunderstorm WarningLZKCleburne, Independence, White49 min
Jun 13, 2:33 PM CDTSpecial Weather StatementLZKStone27 min
Jun 13, 2:35 PM CDTSevere Thunderstorm WarningLZKBaxter, Searcy, Stone40 min
Jun 13, 2:47 PM CDTSevere Thunderstorm WarningLZKLonoke, Prairie43 min
Jun 13, 3:04 PM CDTSevere Thunderstorm WarningLZKLonoke, White41 min
Jun 13, 3:15 PM CDTSevere Thunderstorm WarningLZKSearcy, Stone, Van Buren45 min
Jun 13, 3:58 PM CDTSevere Thunderstorm WarningLZKCleburne, Stone, Van Buren47 min
Jun 13, 4:24 PM CDTSpecial Weather StatementLZKMarion46 min
Jun 13, 4:27 PM CDTSevere Thunderstorm WarningLZKDesha, Drew48 min
Jun 13, 5:07 PM CDTSevere Thunderstorm WarningLZKDrew38 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.