Alert archive / Arkansas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 7, NWS Little Rock, AR

January 8, 20085 counties in Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Jan 8, 2008, 12:13 PM CST for 5 counties in Arkansas. It was in force for 47 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: Jan 8, 2008, 12:13 PM CST (18:13 UTC)
Expired: Jan 8, 2008, 1:00 PM CST
In force: 47 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon

Counties Calhoun County, AR, Cleveland County, AR, Dallas County, AR, Lincoln County, AR, Ouachita County, AR

The radar

The Little Rock radar (KLZK), 116 km from the middle of the area, began a volume at 18:12 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
Jan 8, 8:34 AM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 6.2 hours before the alert went out and 193 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: 214 J/kg
Mixed-layer CIN: -112 J/kg
Mixed-layer LCL: 622 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 329 m²/s²
0-3 km storm-relative helicity: 238 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 4.3

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 Jan 8, 11:54 AM CST, 19 minutes earlier.

Area forecast discussion, Jan 8, 11:54 AM CST, 19 minutes before

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Hazardous weather outlook, Jan 8, 10:00 AM CST, 2 hours 13 minutes before

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In the hours before

Local storm report, Jan 8, 9:41 AM CST, 2 hours 32 minutes before

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Local storm report, Jan 8, 10:34 AM CST, 1 hour 39 minutes before

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Local storm report, Jan 8, 11:15 AM CST, 58 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
Jan 8, 2:50 AM CST	Lake Wind Advisory	LZK	Arkansas, Baxter, Bradley, Calhoun, Clark, Cleburne and 28 more	15 hr
Jan 8, 8:15 AM CST	Severe Thunderstorm Warning	LZK	Conway, Pope, Van Buren	45 min
Jan 8, 8:30 AM CST	Tornado Warning	LZK	Conway, Pope, Van Buren	45 min
Jan 8, 8:43 AM CST	Tornado Warning	LZK	Faulkner, Garland, Perry, Pulaski, Saline	32 min
Jan 8, 9:15 AM CST	Severe Thunderstorm Warning	LZK	Faulkner, Perry, Pulaski	30 min
Jan 8, 9:15 AM CST	Severe Thunderstorm Warning	LZK	Cleburne, Stone, Van Buren	45 min
Jan 8, 9:38 AM CST	Severe Thunderstorm Warning	LZK	Clark, Dallas, Garland, Hot Spring, Pike	52 min
Jan 8, 10:00 AM CST	Severe Thunderstorm Warning	LZK	Independence, Izard, Sharp, Stone	45 min
Jan 8, 11:36 AM CST	Severe Thunderstorm Warning	LZK	Jefferson, Lonoke, Prairie, Pulaski	39 min
Jan 8, 12:15 PM CST	Severe Thunderstorm Warning	LZK	Arkansas, Monroe, Prairie, Woodruff	45 min
Jan 8, 1:02 PM CST	Severe Thunderstorm Warning	LZK	Arkansas, Monroe, Prairie	28 min
Jan 8, 1:12 PM CST	Severe Thunderstorm Warning	LZK	Arkansas, Bradley, Calhoun, Cleveland, Desha, Drew and 3 more	63 min
Jan 8, 2:15 PM CST	Severe Thunderstorm Warning	LZK	Arkansas, Desha, Drew	30 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.