Alert archive / Arkansas / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 554, NWS Little Rock, AR

June 15, 20114 counties in Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Jun 15, 2011, 10:29 AM CDT for 4 counties in Arkansas. It was in force for 46 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 15, 2011, 10:29 AM CDT (15:29 UTC)
Expired: Jun 15, 2011, 11:15 AM CDT
In force: 46 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon

Counties Cleburne County, AR, Conway County, AR, Faulkner County, AR, Van Buren County, AR

The radar

The Little Rock radar (KLZK), 62 km from the middle of the area, began a volume at 15:29 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, 3.5 hours before the alert went out and 231 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: 2133 J/kg
Mixed-layer CIN: -194 J/kg
Mixed-layer LCL: 1365 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 149 m²/s²
0-3 km storm-relative helicity: 206 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 Jun 15, 6:26 AM CDT, 4 hours 3 minutes earlier.

Area forecast discussion, Jun 15, 6:26 AM CDT, 4 hours 3 minutes before

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Hazardous weather outlook, Jun 15, 5:00 AM CDT, 5 hours 29 minutes before

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In the hours before

Special weather statement, Jun 15, 7:47 AM CDT, 2 hours 42 minutes before

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Special weather statement, Jun 15, 10:21 AM CDT, 8 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1021 AM CDT WED JUN 15 2011

ARZ023-024-031-032-151605-
CLEBURNE AR-CONWAY AR-FAULKNER AR-VAN BUREN AR-
1021 AM CDT WED JUN 15 2011

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN VAN BUREN...
SOUTHWESTERN CLEBURNE...NORTHEASTERN CONWAY AND NORTHERN FAULKNER
COUNTIES UNTIL 1100 AM CDT...

AT 1020 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM 2 MILES EAST OF SUNNYSIDE...OR 16 MILES
SOUTHWEST OF CLINTON...MOVING EAST AT 25 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  WHIPPLE...            TWIN GROVES...        QUITMAN...
  MIDDLETON...          MALLET TOWN...        LANTY...
  GUY...                FAIRBANKS...          DAMASCUS...
  CATHOLIC POINT...     BETHLEHEM...          SOUTHSIDE...
  MORGANTON...          MARTINVILLE...        FORMOSA...
  ENDERS...             CENTER RIDGE...       BIRDTOWN...

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

LAT...LON 3555 9221 3526 9216 3528 9267 3544 9271
TIME...MOT...LOC 1521Z 265DEG 24KT 3538 9259

224

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 12:34 AM CDT	Severe Thunderstorm Warning	LZK	Johnson, Logan, Newton, Pope, Scott, Yell	41 min
Jun 15, 12:41 AM CDT	Special Weather Statement	LZK	Boone	29 min
Jun 15, 12:51 AM CDT	Severe Thunderstorm Warning	LZK	Boone, Marion, Newton, Searcy	39 min
Jun 15, 1:08 AM CDT	Severe Thunderstorm Warning	LZK	Conway, Johnson, Logan, Newton, Pope, Searcy and 2 more	52 min
Jun 15, 1:20 AM CDT	Severe Thunderstorm Warning	LZK	Montgomery, Polk, Scott	40 min
Jun 15, 1:30 AM CDT	Special Weather Statement	LZK	Marion	30 min
Jun 15, 1:55 AM CDT	Severe Thunderstorm Warning	LZK	Baxter, Cleburne, Conway, Pope, Searcy, Stone and 1 more	50 min
Jun 15, 1:56 AM CDT	Special Weather Statement	LZK	Baxter	29 min
Jun 15, 2:06 AM CDT	Special Weather Statement	LZK	Searcy	29 min
Jun 15, 2:30 AM CDT	Special Weather Statement	LZK	Garland, Montgomery	45 min
Jun 15, 2:54 AM CDT	Special Weather Statement	LZK	Izard, Sharp	46 min
Jun 15, 7:47 AM CDT	Special Weather Statement	LZK	Stone	43 min
Jun 15, 10:21 AM CDT	Special Weather Statement	LZK	Van Buren	44 min
Jun 15, 11:14 AM CDT	Special Weather Statement	LZK	Independence	46 min
Jun 15, 11:19 AM CDT	Special Weather Statement	LZK	Van Buren	46 min
Jun 15, 6:37 PM CDT	Special Weather Statement	LZK	Lincoln	43 min
Jun 15, 6:57 PM CDT	Special Weather Statement	LZK	Jefferson	48 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2011 Every 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.