Alert archive / Arkansas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 99, NWS Little Rock, AR

April 8, 2020Pulaski County, Saline County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Apr 8, 2020, 10:16 PM CDT for Pulaski County, Saline County, Arkansas. It was in force for 29 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 8, 2020, 10:16 PM CDT (03:16 UTC)
Expired: Apr 8, 2020, 10:45 PM CDT
In force: 29 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Pulaski County, AR, Saline County, AR

The radar

The Little Rock radar (KLZK), 26 km from the middle of the area, began a volume at 03:19 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 00:00Z, 3.3 hours before the alert went out and 233 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: 1810 J/kg
Mixed-layer CIN: -112 J/kg
Mixed-layer LCL: 1529 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 113 m²/s²
0-3 km storm-relative helicity: 132 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 8.3

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 Apr 8, 7:52 PM CDT, 2 hours 24 minutes earlier.

Area forecast discussion, Apr 8, 7:52 PM CDT, 2 hours 24 minutes before

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Hazardous weather outlook, Apr 8, 11:03 AM CDT, 11 hours 13 minutes before

Hazardous Weather Outlook...UPDATED
National Weather Service Little Rock AR
1103 AM CDT Wed Apr 8 2020

ARZ003>008-012>017-021>025-030>034-037>047-052>057-062>069-091000-
Boone-Marion-Baxter-Fulton-Sharp-Randolph-Newton-Searcy-Stone-
Izard-Independence-Lawrence-Johnson-Pope-Van Buren-Cleburne-
Jackson-Logan-Conway-Faulkner-White-Woodruff-Scott-Yell-Perry-
Polk-Montgomery-Garland-Saline-Pulaski-Lonoke-Prairie-Monroe-Pike-
Clark-Hot Spring-Grant-Jefferson-Arkansas-Dallas-Cleveland-
Lincoln-Desha-Ouachita-Calhoun-Bradley-Drew-
1103 AM CDT Wed Apr 8 2020

This Hazardous Weather Outlook is for a Large Part of Arkansas.

.DAY ONE...Today and Tonight

Strong to severe thunderstorms are possible across the state
today and tonight. Damaging winds and large hail will be the
primary threats, however a tornado or two can not be ruled out
across the northeastern portions of the state.

.DAYS TWO THROUGH SEVEN...Thursday Through Tuesday

Storms will shift southeast of Arkansas on Thursday morning.

Showers and thunderstorms will become more widespread by Saturday
and Saturday Night, as a stronger storm system affects the state.
There could be a few strong storms on Saturday Night and Sunday,
with large hail and damaging winds the primary concern. The system
will exit the state on Sunday Night or early Monday, with colder air
moving in behind it. By Tuesday morning, some locations over
northwest Arkansas could see temperatures close to freezing.

.Spotter Information Statement...

Spotter activation may be needed. Please relay any information
about observed severe weather to the NWS while following all
local, state, and CDC guidance.

&&

Visit NWS Little Rock on the web. Go to http://weather.gov/lzk.

In the hours before

Special weather statement, Apr 8, 7:24 PM CDT, 2 hours 52 minutes before

Special Weather Statement
National Weather Service Little Rock AR
724 PM CDT Wed Apr 8 2020

ARZ008-090115-
Randolph AR-
724 PM CDT Wed Apr 8 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN RANDOLPH COUNTY
UNTIL 815 PM CDT...

At 724 PM CDT, Doppler radar was tracking a strong thunderstorm near
Attica, or 10 miles north of Pocahontas, moving east at 25 mph.

Nickel size hail and wind gusts of 50 to 55 mph will be possible with
this storm.

Locations impacted include...
Pocahontas...                     Reyno...
Maynard...                        Biggers...
Attica...                         Dalton...
Elkins Park...                    Brakebill...
Middlebrook...                    Warm Springs...
Ingram...                         Hamil...
Stokes...                         Engelerg...
Brockett...                       Pitman...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

A Tornado Watch remains in effect until midnight CDT for eastern
Arkansas.

LAT...LON 3648 9077 3643 9078 3643 9076 3642 9077
      3641 9075 3628 9075 3628 9078 3629 9079
      3628 9081 3628 9104 3642 9118 3650 9115
      3650 9078
TIME...MOT...LOC 0024Z 267DEG 21KT 3640 9104

Cooper

Special weather statement, Apr 8, 8:56 PM CDT, 1 hour 20 minutes before

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Special weather statement, Apr 8, 9:01 PM CDT, 1 hour 15 minutes before

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Local storm report, Apr 8, 9:40 PM CDT, 36 minutes before

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Special weather statement, Apr 8, 9:46 PM CDT, 30 minutes before

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Special weather statement, Apr 8, 10:08 PM CDT, 8 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 8, 7:00 PM CDT	Severe Thunderstorm Warning	LZK	Lawrence, Randolph	19 min
Apr 8, 7:24 PM CDT	Special Weather Statement	LZK	Randolph	51 min
Apr 8, 7:30 PM CDT	Severe Thunderstorm Warning	LZK	Jackson, Lawrence	15 min
Apr 8, 7:32 PM CDT	Tornado Warning	LZK	Jackson, Lawrence	10 min
Apr 8, 8:56 PM CDT	Special Weather Statement	LZK	Perry	34 min
Apr 8, 9:01 PM CDT	Special Weather Statement	LZK	Randolph	29 min
Apr 8, 9:10 PM CDT	Severe Thunderstorm Warning	LZK	Randolph	35 min
Apr 8, 9:23 PM CDT	Severe Thunderstorm Warning	LZK	Perry, Saline	26 min
Apr 8, 9:46 PM CDT	Special Weather Statement	LZK	Saline	29 min
Apr 8, 10:08 PM CDT	Special Weather Statement	LZK	Saline	37 min
Apr 8, 10:35 PM CDT	Special Weather Statement	LZK	Pulaski	25 min
Apr 8, 10:50 PM CDT	Special Weather Statement	LZK	Lonoke	25 min
Apr 8, 11:47 PM CDT	Special Weather Statement	LZK	Arkansas	43 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2020 Every 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.