Alert archive / Arkansas / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 89, NWS Little Rock, AR

April 15, 2011Desha County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Apr 15, 2011, 4:55 AM CDT for Desha County, Arkansas. It was in force for 30 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: Apr 15, 2011, 4:55 AM CDT (09:55 UTC)
Expired: Apr 15, 2011, 5:25 AM CDT
In force: 30 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon

County Desha County, AR

The radar

The Little Rock radar (KLZK), 145 km from the middle of the area, began a volume at 09:55 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
Apr 15, 2:19 AM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 9.9 hours before the alert went out and 163 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: 195 J/kg
Mixed-layer CIN: -128 J/kg
Mixed-layer LCL: 1615 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 170 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 Apr 15, 4:37 AM CDT, 18 minutes earlier.

Area forecast discussion, Apr 15, 4:37 AM CDT, 18 minutes before

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In the hours before

Local storm report, Apr 15, 2:48 AM CDT, 2 hours 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
248 AM CDT FRI APR 15 2011

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

0215 AM     TSTM WND DMG     2 SW SWEET HOME         34.66N 92.24W
04/15/2011                   PULASKI            AR   LAW ENFORCEMENT

            TREES DOWN ALONG 530 NORTH OF DIXON RD. MILE MARKER 3.

&&

227

Local storm report, Apr 15, 2:53 AM CDT, 2 hours 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
253 AM CDT FRI APR 15 2011

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

0210 AM     TSTM WND DMG     3 NW DOWNTOWN LITTLE RO 34.76N 92.27W
04/15/2011                   PULASKI            AR   FIRE DEPT/RESCUE

            NUMEROUS TREES HAVE FALLEN WITH SEVERAL TREES ON HOUSES.
            GAS LINE RUPTURES HAVE OCCURED AND TWO HOUSES ARE ON
            FIRE.

&&

227

Local storm report, Apr 15, 3:03 AM CDT, 1 hour 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
303 AM CDT FRI APR 15 2011

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

0206 AM     TSTM WND DMG     2 E EAST END            34.55N 92.28W
04/15/2011                   SALINE             AR   AMATEUR RADIO

            TRRES AND POWERLINE DOWN ALONG I-530.

&&

227

Local storm report, Apr 15, 3:23 AM CDT, 1 hour 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
323 AM CDT FRI APR 15 2011

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

0219 AM     TSTM WND DMG     6 S SCOTT               34.61N 92.10W
04/15/2011                   PULASKI            AR   AMATEUR RADIO

            TRRES DOWN AND BLOCKING PARTS OF HWY 161. A TRAILED HAS
            BEEN DAMAGED AND FIRE AND RESUCE IS ON THE SCENE. THERE
            ARE SEVERAL TRAPPED OCCUPANTS.

&&

227

Local storm report, Apr 15, 3:38 AM CDT, 1 hour 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
338 AM CDT FRI APR 15 2011

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

0134 AM     TSTM WND DMG     GLEN ROSE               34.45N 92.72W
04/15/2011                   HOT SPRING         AR   EMERGENCY MNGR

            SEVERAL BARNS AND HOUSES HAVE SUSTAINED DAMAGE IN THE
            GLEN ROSE COMMUNITY.

&&

57

Local storm report, Apr 15, 4:32 AM CDT, 23 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 10:17 PM CDT	Severe Thunderstorm Warning	LZK	Logan, Polk, Scott	58 min
Apr 14, 10:26 PM CDT	Severe Thunderstorm Warning	LZK	Garland, Montgomery, Perry, Yell	49 min
Apr 14, 10:35 PM CDT	Tornado Warning	LZK	Logan, Scott	25 min
Apr 14, 10:39 PM CDT	Tornado Warning	LZK	Polk, Scott	51 min
Apr 14, 10:40 PM CDT	Tornado Warning	LZK	Logan, Montgomery, Perry, Yell	50 min
Apr 14, 10:58 PM CDT	Tornado Warning	LZK	Polk	32 min
Apr 14, 11:00 PM CDT	Tornado Warning	LZK	Logan, Scott	30 min
Apr 14, 11:06 PM CDT	Severe Thunderstorm Warning	LZK	Johnson, Logan, Montgomery, Pike, Polk, Scott and 1 more	39 min
Apr 14, 11:10 PM CDT	Tornado Warning	LZK	Logan	35 min
Apr 14, 11:23 PM CDT	Tornado Warning	LZK	Logan, Pope, Yell	37 min
Apr 14, 11:28 PM CDT	Tornado Warning	LZK	Montgomery, Polk	47 min
Apr 14, 11:37 PM CDT	Tornado Warning	LZK	Johnson, Logan, Pope	19 min
Apr 14, 11:44 PM CDT	Severe Thunderstorm Warning	LZK	Johnson, Logan, Montgomery, Pike, Polk, Pope and 2 more	46 min
Apr 15, 12:04 AM CDT	Severe Thunderstorm Warning	LZK	Conway, Garland, Montgomery, Perry, Pope, Saline and 1 more	41 min
Apr 15, 12:07 AM CDT	Tornado Warning	LZK	Garland, Montgomery, Yell	53 min
Apr 15, 12:12 AM CDT	Severe Thunderstorm Warning	LZK	Cleburne, Independence, Izard, Sharp	35 min
Apr 15, 12:22 AM CDT	Severe Thunderstorm Warning	LZK	Clark, Garland, Hot Spring, Montgomery, Pike	42 min
Apr 15, 12:45 AM CDT	Severe Thunderstorm Warning	LZK	Conway, Faulkner, Garland, Perry, Pope, Pulaski and 2 more	45 min
Apr 15, 12:51 AM CDT	Severe Thunderstorm Warning	LZK	Clark, Garland, Grant, Hot Spring, Perry, Pike and 3 more	39 min
Apr 15, 1:11 AM CDT	Special Weather Statement	LZK	Jackson	29 min
Apr 15, 1:23 AM CDT	Severe Thunderstorm Warning	LZK	Cleburne, Conway, Faulkner, Lonoke, Perry, Prairie and 3 more	52 min
Apr 15, 1:24 AM CDT	Tornado Warning	LZK	Faulkner, Perry, Pulaski, Saline	36 min
Apr 15, 1:25 AM CDT	Severe Thunderstorm Warning	LZK	Faulkner, Garland, Grant, Hot Spring, Perry, Pulaski and 1 more	50 min
Apr 15, 1:47 AM CDT	Tornado Warning	LZK	Cleburne, Independence, Stone, White	28 min
Apr 15, 1:56 AM CDT	Tornado Warning	LZK	Grant, Lonoke, Prairie, Pulaski, Saline	34 min
Apr 15, 1:58 AM CDT	Tornado Warning	LZK	Faulkner, Lonoke, Pulaski, White	21 min
Apr 15, 1:59 AM CDT	Tornado Warning	LZK	Lonoke, Pulaski, White	46 min
Apr 15, 2:02 AM CDT	Tornado Warning	LZK	Lonoke, Pulaski	43 min
Apr 15, 2:19 AM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Cleveland, Dallas, Grant, Jefferson, Lincoln and 3 more	41 min
Apr 15, 2:20 AM CDT	Severe Thunderstorm Warning	LZK	Bradley, Calhoun, Cleveland, Dallas, Ouachita	40 min
Apr 15, 2:30 AM CDT	Tornado Warning	LZK	Lonoke, Monroe, Prairie, Woodruff	45 min
Apr 15, 2:39 AM CDT	Tornado Warning	LZK	Calhoun, Cleveland, Dallas, Lincoln, Ouachita	51 min
Apr 15, 2:40 AM CDT	Severe Thunderstorm Warning	LZK	Independence, Jackson, Monroe, Prairie, Sharp, White and 1 more	50 min
Apr 15, 2:40 AM CDT	Tornado Warning	LZK	Lonoke, Monroe, Prairie, White, Woodruff	50 min
Apr 15, 2:49 AM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Jefferson, Lincoln, Monroe, Prairie, Woodruff	56 min
Apr 15, 2:49 AM CDT	Tornado Warning	LZK	Arkansas, Jefferson	18 min
Apr 15, 2:58 AM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Bradley, Calhoun, Cleveland, Dallas, Drew and 4 more	47 min
Apr 15, 3:10 AM CDT	Flash Flood Warning	LZK	Baxter, Izard, Marion, Newton, Pope, Searcy and 2 more	110 min
Apr 15, 3:42 AM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Bradley, Cleveland, Desha, Drew, Jefferson and 2 more	63 min
Apr 15, 4:14 AM CDT	Tornado Warning	LZK	Desha, Drew	46 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.