Alert archive / Arkansas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 288, NWS Little Rock, AR

August 2, 2012Cleburne County, Van Buren County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Aug 2, 2012, 1:08 AM CDT for Cleburne County, Van Buren 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
Aug 2, 2012, 1:08 AM CDT (06:08 UTC)
Expired
Aug 2, 2012, 1:45 AM CDT
In force
37 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon

Counties Cleburne County, AR, Van Buren County, AR

The radar

The Little Rock radar (KLZK), 80 km from the middle of the area, began a volume at 06:08 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 00:00Z, 6.1 hours before the alert went out and 203 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 00:00Z on 2012-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 127 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 00:00Z on 2012-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 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
127 J/kg
Mixed-layer CIN
-175 J/kg
Mixed-layer LCL
2880 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
189 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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 Aug 2, 12:45 AM CDT, 23 minutes earlier.

Area forecast discussion, Aug 2, 12:45 AM CDT, 23 minutes before
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Hazardous weather outlook, Aug 1, 11:45 PM CDT, 1 hour 23 minutes before
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In the hours before

Local storm report, Aug 1, 7:34 PM CDT, 5 hours 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
734 PM CDT WED AUG 01 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0634 PM     TSTM WND DMG     VIOLA                   36.40N 91.98W
08/01/2012                   FULTON             AR   LAW ENFORCEMENT

            TRESS AND POWER LINES ARE DOWN. SOME POWER POLES WERE
            SNAPPED. TIN ROOFING WAS REMOVED FROM SEVERAL
            HOUSES...MTRESS AND POWER LINES ARE DOWN.

0647 PM     TSTM WND DMG     SALEM                   36.37N 91.82W
08/01/2012                   FULTON             AR   LAW ENFORCEMENT

            SEVERAL POWER LINES AND POWER POLES WERE BLOWN DOWN. TIN
            ROOFING WAS REMOVED FROM SEVERAL STRUCTURES ON THE WEST
            SIDE OF SALEM.

&&

MCLAY
Local storm report, Aug 1, 8:06 PM CDT, 5 hours 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
806 PM CDT WED AUG 01 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0717 PM     TSTM WND DMG     3 E ASH FLAT            36.23N 91.55W
08/01/2012                   SHARP              AR   TRAINED SPOTTER

            MULTIPLE TREES ARE DOWN WITH TREES REPORTED ON HOUSES AND
            VEHICLES. NO INJURIES ARE BEING REPORTED AT THIS TIME.
            POWER LINES AND POWER POLES WERE BLOWN DOWN.

&&

MCLAY
Special weather statement, Aug 1, 8:07 PM CDT, 5 hours 1 minute before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
807 PM CDT WED AUG 1 2012

ARZ016-025-034-020155-
INDEPENDENCE AR-JACKSON AR-WOODRUFF AR-
807 PM CDT WED AUG 1 2012

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN WOODRUFF...
SOUTHEASTERN JACKSON AND EASTERN INDEPENDENCE COUNTIES UNTIL 900 PM
CDT...

AT 803 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 4 MILES SOUTHEAST OF NEWARK...OR 9 MILES
NORTHWEST OF NEWPORT...MOVING SOUTHEAST AT 35 MPH.

WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  NEWPORT...            MCFADDEN...           JACKSONPORT...
  DIAZ...               ALGOA...              WELDON...
  SHOFFNER...           PUMPKIN BEND...       MACKS...
  ERWIN...              BLACKVILLE...         BEEDEVILLE...
  HOWARD LAKE...        AUVERGNE...

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

LAT...LON 3549 9104 3520 9105 3568 9148 3574 9136
TIME...MOT...LOC 0108Z 323DEG 29KT 3565 9136

51
Local storm report, Aug 1, 10:38 PM CDT, 2 hours 30 minutes before
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Special weather statement, Aug 2, 12:01 AM CDT, 1 hour 7 minutes before
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Special weather statement, Aug 2, 1:04 AM CDT, 4 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 7:15 PM CDTSevere Thunderstorm WarningLZKSharp15 min
Aug 1, 7:28 PM CDTSpecial Weather StatementLZKNewton47 min
Aug 1, 7:30 PM CDTSevere Thunderstorm WarningLZKIndependence, Sharp30 min
Aug 1, 8:07 PM CDTSpecial Weather StatementLZKJackson48 min
Aug 1, 10:20 PM CDTSevere Thunderstorm WarningLZKSearcy, Stone, Van Buren40 min
Aug 2, 12:01 AM CDTSpecial Weather StatementLZKFaulkner29 min
Aug 2, 1:04 AM CDTSpecial Weather StatementLZKVan Buren31 min
Aug 2, 1:34 AM CDTSpecial Weather StatementLZKStone31 min
Aug 2, 4:09 AM CDTSpecial Weather StatementLZKFulton, Izard, Sharp46 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.