Alert archive / Arkansas / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 7, NWS Little Rock, AR

March 28, 2014Polk County, Scott County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Mar 28, 2014, 3:21 AM CDT for Polk County, Scott 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: Mar 28, 2014, 3:21 AM CDT (08:21 UTC)
Expired: Mar 28, 2014, 3:45 AM CDT
In force: 24 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon

Counties Polk County, AR, Scott County, AR

The radar

The Western Arkansas radar (KSRX), 71 km from the middle of the area, began a volume at 08:21 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

Springfield, MO (KSGF), launched 00:00Z, 8.4 hours before the alert went out and 250 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: 543 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1053 m above ground
0-6 km bulk shear: 79 kt
0-1 km storm-relative helicity: 117 m²/s²
0-3 km storm-relative helicity: 216 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 3.6

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 Mar 28, 2:16 AM CDT, 1 hour 5 minutes earlier.

Area forecast discussion, Mar 28, 2:16 AM CDT, 1 hour 5 minutes before

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Hazardous weather outlook, Mar 27, 10:00 PM CDT, 5 hours 21 minutes before

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In the hours before

Special weather statement, Mar 27, 10:46 PM CDT, 4 hours 35 minutes before

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Special weather statement, Mar 27, 11:33 PM CDT, 3 hours 48 minutes before

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Special weather statement, Mar 28, 12:05 AM CDT, 3 hours 16 minutes before

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Special weather statement, Mar 28, 12:29 AM CDT, 2 hours 52 minutes before

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Special weather statement, Mar 28, 3:01 AM CDT, 20 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
Mar 27, 10:46 PM CDT	Special Weather Statement	LZK	Newton	29 min
Mar 27, 11:33 PM CDT	Special Weather Statement	LZK	Newton	47 min
Mar 28, 12:05 AM CDT	Special Weather Statement	LZK	Logan	30 min
Mar 28, 12:29 AM CDT	Special Weather Statement	LZK	Yell	31 min
Mar 28, 3:01 AM CDT	Special Weather Statement	LZK	Scott	29 min
Mar 28, 1:54 PM CDT	Special Weather Statement	LZK	Perry	26 min
Mar 28, 2:05 PM CDT	Severe Thunderstorm Warning	LZK	Clark, Dallas	40 min
Mar 28, 2:20 PM CDT	Special Weather Statement	LZK	Garland, Perry	30 min
Mar 28, 2:40 PM CDT	Severe Thunderstorm Warning	LZK	Clark, Cleveland, Dallas, Grant	50 min
Mar 28, 2:55 PM CDT	Special Weather Statement	LZK	Perry	45 min
Mar 28, 2:57 PM CDT	Special Weather Statement	LZK	Faulkner	43 min
Mar 28, 3:01 PM CDT	Severe Thunderstorm Warning	LZK	Cleveland, Dallas, Ouachita	29 min
Mar 28, 3:05 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner, Perry, Pulaski, Saline	25 min
Mar 28, 3:08 PM CDT	Special Weather Statement	LZK	Saline	47 min
Mar 28, 3:21 PM CDT	Severe Thunderstorm Warning	LZK	Grant, Hot Spring, Saline	24 min
Mar 28, 3:24 PM CDT	Severe Thunderstorm Warning	LZK	Cleveland, Dallas, Jefferson	36 min
Mar 28, 3:39 PM CDT	Severe Thunderstorm Warning	LZK	Bradley, Calhoun, Cleveland, Drew, Lincoln	51 min
Mar 28, 3:47 PM CDT	Special Weather Statement	LZK	Pulaski	43 min
Mar 28, 3:57 PM CDT	Special Weather Statement	LZK	Cleveland	43 min
Mar 28, 4:06 PM CDT	Special Weather Statement	LZK	Newton	44 min
Mar 28, 4:27 PM CDT	Severe Thunderstorm Warning	LZK	Bradley, Drew	33 min
Mar 28, 4:30 PM CDT	Severe Thunderstorm Warning	LZK	Bradley	45 min
Mar 28, 4:38 PM CDT	Special Weather Statement	LZK	Lonoke	47 min
Mar 28, 4:58 PM CDT	Special Weather Statement	LZK	Monroe	47 min
Mar 28, 5:00 PM CDT	Special Weather Statement	LZK	Drew	45 min
Mar 28, 5:21 PM CDT	Severe Thunderstorm Warning	LZK	Desha, Drew	39 min
Mar 28, 5:35 PM CDT	Severe Thunderstorm Warning	LZK	Clark, Ouachita	40 min
Mar 28, 6:00 PM CDT	Severe Thunderstorm Warning	LZK	Desha, Drew	45 min
Mar 28, 6:38 PM CDT	Severe Thunderstorm Warning	LZK	Calhoun, Ouachita	52 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2014 Every severe thunderstorm warning in 2014

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.