Alert archive / Arkansas / Tornado Warnings in 2010

Tornado Warning 87, NWS Little Rock, AR

December 31, 2010Arkansas County, Monroe County, Arkansas

NWS Little Rock, AR issued this tornado warning at Dec 31, 2010, 5:21 PM CST for Arkansas County, Monroe County, Arkansas. It was in force for 24 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: Dec 31, 2010, 5:21 PM CST (23:21 UTC)
Expired: Dec 31, 2010, 5:45 PM CST
In force: 24 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon

Counties Arkansas County, AR, Monroe County, AR

The radar

The Little Rock radar (KLZK), 97 km from the middle of the area, began a volume at 23:22 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, 11.4 hours before the alert went out and 128 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: 874 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 481 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 322 m²/s²
0-3 km storm-relative helicity: 360 m²/s²
Significant tornado parameter: 1.8
Supercell composite: 8.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Dec 31, 3:46 PM CST, 1 hour 35 minutes earlier.

Area forecast discussion, Dec 31, 3:46 PM CST, 1 hour 35 minutes before

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Hazardous weather outlook, Dec 31, 1:35 PM CST, 3 hours 46 minutes before

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In the hours before

Special weather statement, Dec 31, 2:52 PM CST, 2 hours 29 minutes before

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Special weather statement, Dec 31, 3:02 PM CST, 2 hours 19 minutes before

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Special weather statement, Dec 31, 3:32 PM CST, 1 hour 49 minutes before

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Special weather statement, Dec 31, 3:52 PM CST, 1 hour 29 minutes before

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Special weather statement, Dec 31, 4:19 PM CST, 1 hour 2 minutes before

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Local storm report, Dec 31, 5:09 PM CST, 12 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
Dec 31, 3:40 AM CST	Lake Wind Advisory	LZK	Baxter, Fulton, Independence, Izard, Jackson, Marion and 2 more	14 hr
Dec 31, 4:43 AM CST	Tornado Warning	LZK	Cleburne, Faulkner, White	32 min
Dec 31, 8:59 AM CST	Severe Thunderstorm Warning	LZK	Johnson, Newton	46 min
Dec 31, 9:18 AM CST	Special Weather Statement	LZK	Johnson, Logan, Scott, Yell	47 min
Dec 31, 9:23 AM CST	Severe Thunderstorm Warning	LZK	Boone, Newton	52 min
Dec 31, 9:41 AM CST	Severe Thunderstorm Warning	LZK	Johnson, Newton, Pope, Searcy, Van Buren	49 min
Dec 31, 9:50 AM CST	Special Weather Statement	LZK	Yell	45 min
Dec 31, 10:03 AM CST	Severe Thunderstorm Warning	LZK	Boone, Marion, Newton, Searcy	42 min
Dec 31, 10:30 AM CST	Severe Thunderstorm Warning	LZK	Baxter, Izard, Marion, Searcy, Stone, Van Buren	45 min
Dec 31, 10:52 AM CST	Tornado Warning	LZK	Baxter, Izard, Searcy, Stone	11 min
Dec 31, 11:11 AM CST	Severe Thunderstorm Warning	LZK	Baxter, Fulton, Izard, Stone	49 min
Dec 31, 11:58 AM CST	Severe Thunderstorm Warning	LZK	Fulton, Izard, Sharp	47 min
Dec 31, 12:32 PM CST	Severe Thunderstorm Warning	LZK	Cleburne, Independence, Jackson, Sharp, White	58 min
Dec 31, 1:39 PM CST	Severe Thunderstorm Warning	LZK	Grant, Saline	27 min
Dec 31, 2:52 PM CST	Special Weather Statement	LZK	Woodruff	43 min
Dec 31, 3:02 PM CST	Special Weather Statement	LZK	Cleveland	43 min
Dec 31, 3:32 PM CST	Special Weather Statement	LZK	Conway	43 min
Dec 31, 3:52 PM CST	Special Weather Statement	LZK	Jefferson, Lonoke	43 min
Dec 31, 4:19 PM CST	Special Weather Statement	LZK	Bradley, Drew	46 min
Dec 31, 4:23 PM CST	Severe Thunderstorm Warning	LZK	Bradley, Cleveland, Drew	44 min
Dec 31, 4:45 PM CST	Severe Thunderstorm Warning	LZK	Monroe	17 min
Dec 31, 4:53 PM CST	Severe Thunderstorm Warning	LZK	Drew, Jefferson, Lincoln	38 min
Dec 31, 5:21 PM CST	Severe Thunderstorm Warning	LZK	Arkansas, Jefferson, Lincoln, Monroe, Prairie	39 min
Dec 31, 5:32 PM CST	Severe Thunderstorm Warning	LZK	Arkansas, Desha	43 min

Nearby

Tornado Warnings in Arkansas, 2010 Every tornado warning in 2010 Tornadoes in 2010

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.