Alert archive / Arkansas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 113, NWS Little Rock, AR

April 12, 20207 counties in Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Apr 12, 2020, 8:53 PM CDT for 7 counties in Arkansas. It was in force for 52 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 12, 2020, 8:53 PM CDT (01:53 UTC)
Expired
Apr 12, 2020, 9:45 PM CDT
In force
52 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Independence County, AR, Jackson County, AR, Lonoke County, AR, Monroe County, AR, Prairie County, AR, White County, AR, Woodruff County, AR

The radar

The Little Rock radar (KLZK), 79 km from the middle of the area, began a volume at 01:56 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.

IssuedProductOfficeLasted
Apr 12, 5:59 PM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 1.9 hours before the alert went out and 145 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-pSkew-T log-p diagram, Little Rock, AR at 00:00Z on 2020-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 00:00Z on 2020-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1099 m above ground
0-6 km bulk shear
91 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
96 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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 12, 6:37 PM CDT, 2 hours 16 minutes earlier.

Area forecast discussion, Apr 12, 6:37 PM CDT, 2 hours 16 minutes before
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Hazardous weather outlook, Apr 12, 2:39 PM CDT, 6 hours 14 minutes before
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In the hours before

Local storm report, Apr 12, 8:32 PM CDT, 21 minutes before
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Local storm report, Apr 12, 8:38 PM CDT, 15 minutes before
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Special weather statement, Apr 12, 8:39 PM CDT, 14 minutes before
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Local storm report, Apr 12, 8:41 PM CDT, 12 minutes before
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Local storm report, Apr 12, 8:44 PM CDT, 9 minutes before
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Local storm report, Apr 12, 8:52 PM CDT, 1 minute before
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The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 12, 7:10 PM CDTSevere Thunderstorm WarningLZKClark, Dallas, Garland, Grant, Hot Spring, Pike and 1 more50 min
Apr 12, 7:12 PM CDTSpecial Weather StatementLZKCalhoun48 min
Apr 12, 7:18 PM CDTSevere Thunderstorm WarningLZKBradley, Calhoun, Ouachita42 min
Apr 12, 7:22 PM CDTSpecial Weather StatementLZKBaxter, Marion, Searcy53 min
Apr 12, 7:33 PM CDTSevere Thunderstorm WarningLZKCleburne, Conway, Faulkner, Lonoke, Perry, Pope and 6 more57 min
Apr 12, 7:45 PM CDTSevere Thunderstorm WarningLZKArkansas, Cleveland, Dallas, Grant, Jefferson, Lincoln and 3 more45 min
Apr 12, 7:56 PM CDTSevere Thunderstorm WarningLZKBradley, Calhoun, Drew49 min
Apr 12, 8:19 PM CDTSevere Thunderstorm WarningLZKCleburne, Independence, Izard, Jackson, Lonoke, Prairie and 4 more41 min
Apr 12, 8:28 PM CDTSevere Thunderstorm WarningLZKArkansas, Bradley, Cleveland, Desha, Drew, Jefferson and 5 more62 min
Apr 12, 8:39 PM CDTSpecial Weather StatementLZKFulton, Izard, Sharp36 min
Apr 12, 8:43 PM CDTSevere Thunderstorm WarningLZKDesha, Drew36 min
Apr 12, 9:44 PM CDTRiver Flood WarningLZKClark, Hot Spring61 hr
Apr 13, 3:45 PM CDTFreeze WarningLZKBaxter, Marion17 hr

Nearby

Severe Thunderstorm Warnings in Arkansas, 2020Every severe thunderstorm warning in 2020

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.