Alert archive / Arkansas / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 29, NWS Little Rock, AR

February 27, 20094 counties in Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Feb 27, 2009, 8:12 AM CST for 4 counties in Arkansas. It was in force for 48 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: Feb 27, 2009, 8:12 AM CST (14:12 UTC)
Expired: Feb 27, 2009, 9:00 AM CST
In force: 48 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon

Counties Bradley County, AR, Cleveland County, AR, Drew County, AR, Lincoln County, AR

The radar

The Little Rock radar (KLZK), 127 km from the middle of the area, began a volume at 14:15 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, 2.2 hours before the alert went out and 221 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: 454 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 593 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 21 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 Feb 27, 5:37 AM CST, 2 hours 35 minutes earlier.

Area forecast discussion, Feb 27, 5:37 AM CST, 2 hours 35 minutes before

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Hazardous weather outlook, Feb 27, 5:00 AM CST, 3 hours 12 minutes before

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      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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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
Feb 26, 7:45 PM CST	Severe Thunderstorm Warning	LZK	Johnson	45 min
Feb 26, 7:53 PM CST	Severe Thunderstorm Warning	LZK	Logan, Scott	67 min
Feb 26, 8:28 PM CST	Severe Thunderstorm Warning	LZK	Johnson, Logan, Pope, Yell	62 min
Feb 26, 8:40 PM CST	Severe Thunderstorm Warning	LZK	Garland, Logan, Perry, Scott, Yell	65 min
Feb 26, 9:06 PM CST	Severe Thunderstorm Warning	LZK	Conway, Faulkner, Perry, Pope	39 min
Feb 26, 9:38 PM CST	Severe Thunderstorm Warning	LZK	Faulkner, White	52 min
Feb 26, 9:45 PM CST	Severe Thunderstorm Warning	LZK	Garland, Perry, Saline, Yell	60 min
Feb 26, 9:47 PM CST	Severe Thunderstorm Warning	LZK	Conway, Faulkner	43 min
Feb 26, 10:10 PM CST	Severe Thunderstorm Warning	LZK	Pike	43 min
Feb 26, 10:26 PM CST	Severe Thunderstorm Warning	LZK	Grant, Pulaski, Saline	64 min
Feb 26, 10:28 PM CST	Severe Thunderstorm Warning	LZK	Faulkner, Lonoke, Pulaski, White	47 min
Feb 26, 11:17 PM CST	Severe Thunderstorm Warning	LZK	Jefferson, Lonoke, Pulaski	58 min
Feb 26, 11:18 PM CST	Severe Thunderstorm Warning	LZK	Garland, Saline	27 min
Feb 27, 12:06 AM CST	Severe Thunderstorm Warning	LZK	Arkansas, Lonoke, Monroe, Prairie	39 min
Feb 27, 12:35 AM CST	Severe Thunderstorm Warning	LZK	Clark, Dallas, Hot Spring	40 min
Feb 27, 12:45 AM CST	Severe Thunderstorm Warning	LZK	Arkansas, Monroe, Prairie	15 min
Feb 27, 4:24 AM CST	Severe Thunderstorm Warning	LZK	Cleveland, Dallas, Grant, Jefferson	36 min
Feb 27, 9:00 AM CST	Severe Thunderstorm Warning	LZK	Desha, Drew, Lincoln	30 min
Feb 27, 11:18 AM CST	Severe Thunderstorm Warning	LZK	Cleveland, Dallas	42 min
Feb 27, 11:24 AM CST	Severe Thunderstorm Warning	LZK	Drew	51 min
Feb 27, 11:53 AM CST	Severe Thunderstorm Warning	LZK	Clark, Dallas	37 min
Feb 27, 12:02 PM CST	Severe Thunderstorm Warning	LZK	Cleveland, Lincoln	58 min
Feb 27, 12:06 PM CST	Severe Thunderstorm Warning	LZK	Desha, Drew	39 min
Feb 27, 12:51 PM CST	Severe Thunderstorm Warning	LZK	Arkansas, Desha	39 min
Feb 27, 1:01 PM CST	Severe Thunderstorm Warning	LZK	Arkansas, Desha, Drew, Lincoln	59 min
Feb 27, 1:33 PM CST	Severe Thunderstorm Warning	LZK	Arkansas, Desha	57 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2009 Every severe thunderstorm warning in 2009

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.