Alert archive / Arkansas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 264, NWS Little Rock, AR

April 22, 2008Jefferson County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Apr 22, 2008, 3:36 PM CDT for Jefferson County, Arkansas. It was in force for 39 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 22, 2008, 3:36 PM CDT (20:36 UTC)
Expired: Apr 22, 2008, 4:15 PM CDT
In force: 39 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon

County Jefferson County, AR

The radar

The Little Rock radar (KLZK), 70 km from the middle of the area, began a volume at 20:36 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 22, 10:47 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Apr 22, 2:33 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 8.6 hours before the alert went out and 192 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: 1833 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 767 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 111 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.9

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 Apr 22, 2:45 PM CDT, 51 minutes earlier.

Area forecast discussion, Apr 22, 2:45 PM CDT, 51 minutes before

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Hazardous weather outlook, Apr 22, 3:00 PM CDT, 36 minutes before

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In the hours before

Local storm report, Apr 22, 2:18 PM CDT, 1 hour 18 minutes before

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Local storm report, Apr 22, 2:26 PM CDT, 1 hour 10 minutes before

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Local storm report, Apr 22, 2:54 PM CDT, 42 minutes before

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Local storm report, Apr 22, 2:55 PM CDT, 41 minutes before

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Local storm report, Apr 22, 3:14 PM CDT, 22 minutes before

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Local storm report, Apr 22, 3:17 PM CDT, 19 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 22, 9:45 AM CDT	Severe Thunderstorm Warning	LZK	Fulton, Izard, Sharp	60 min
Apr 22, 10:30 AM CDT	Severe Thunderstorm Warning	LZK	Baxter, Marion	60 min
Apr 22, 12:17 PM CDT	Flash Flood Warning	LZK	Stone	3 hr
Apr 22, 12:27 PM CDT	Flash Flood Warning	LZK	Searcy	3 hr
Apr 22, 12:34 PM CDT	Severe Thunderstorm Warning	LZK	Jackson, White, Woodruff	41 min
Apr 22, 12:47 PM CDT	Severe Thunderstorm Warning	LZK	Pope, Searcy, Van Buren	43 min
Apr 22, 1:23 PM CDT	Severe Thunderstorm Warning	LZK	Monroe, Prairie, White, Woodruff	52 min
Apr 22, 1:26 PM CDT	Flash Flood Warning	LZK	Searcy, Stone, Van Buren	2 hr
Apr 22, 1:41 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke, Prairie, White	49 min
Apr 22, 1:45 PM CDT	Severe Thunderstorm Warning	LZK	Conway, Faulkner, Van Buren	45 min
Apr 22, 2:06 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner, Lonoke, Pulaski	39 min
Apr 22, 2:13 PM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Desha, Lincoln	62 min
Apr 22, 2:48 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke, Pulaski	42 min
Apr 22, 2:51 PM CDT	Flash Flood Warning	LZK	Lonoke, Pulaski	3 hr
Apr 22, 3:37 PM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Prairie	38 min
Apr 22, 4:15 PM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Desha, Jefferson, Lincoln	45 min
Apr 22, 4:51 PM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Desha, Drew, Lincoln	39 min
Apr 22, 5:35 PM CDT	Severe Thunderstorm Warning	LZK	Scott	25 min
Apr 22, 5:49 PM CDT	Severe Thunderstorm Warning	LZK	Drew	41 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2008 Every severe thunderstorm warning in 2008

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.