Alert archive / Arkansas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 129, NWS Little Rock, AR

May 23, 2018Logan County, Scott County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at May 23, 2018, 2:13 PM CDT for Logan County, Scott County, Arkansas. It was in force for 32 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
May 23, 2018, 2:13 PM CDT (19:13 UTC)
Expired
May 23, 2018, 2:45 PM CDT
In force
32 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Logan County, AR, Scott County, AR

The radar

The Western Arkansas radar (KSRX), 51 km from the middle of the area, began a volume at 19:12 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 nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 7.2 hours before the alert went out and 207 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, Springfield, MO at 12:00Z on 2018-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 720 joules per kilogram.LCLLFCEL10008507005003002001001 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, Springfield, MO at 12:00Z on 2018-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -35 square meters per square second.1939Sfc1 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
720 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
837 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
-18 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 May 23, 2:09 PM CDT, 4 minutes earlier.

Area forecast discussion, May 23, 2:09 PM CDT, 4 minutes before
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Hazardous weather outlook, May 23, 3:35 AM CDT, 10 hours 38 minutes before
Hazardous Weather Outlook
National Weather Service Little Rock AR
335 AM CDT Wed May 23 2018

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-241000-
Boone-Marion-Baxter-Fulton-Sharp-Newton-Searcy-Stone-Izard-
Independence-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-
335 AM CDT Wed May 23 2018

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

.DAY ONE...Today and Tonight

Scattered showers and thunderstorms will be possible in a large
part of Arkansas today and tonight. The western half of the state
will see better chances for thunderstorms. Although widespread
severe weather is not expected, a few strong to briefly severe
storms are possible.

These storms would briefly be capable of producing damaging winds,
hail and locally heavy rainfall. Localized flash flooding may
occur as storm movement is expected to be slow and rainfall rates
very high.

Patchy fog is possible in much of the state this morning. The fog
will be locally dense in outlying areas, valleys and near bodies
of water, reducing visibility to less than one quarter of a mile
at times. The fog will dissipate after sunrise.

.DAYS TWO THROUGH SEVEN...Wednesday Through Monday

Isolated to scattered thunderstorms will be possible each day
through early next week. While widespread severe weather is not
expected at this time...a few strong to briefly severe thunderstorms
may be seen...especially during the afternoon hours each day. The
strongest storms could produce damaging downburst winds...hail and
locally heavy rainfall.

.Spotter Information Statement...

Spotter activation is not anticipated today, but any reports of
severe weather are requested.

&&

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

57/62

In the hours before

Special weather statement, May 23, 10:54 AM CDT, 3 hours 19 minutes before
Special Weather Statement
National Weather Service Little Rock AR
1054 AM CDT WED MAY 23 2018

ARZ014-231630-
Stone AR-
1054 AM CDT WED MAY 23 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN STONE COUNTY UNTIL
1130 AM CDT...

At 1054 AM CDT, Doppler radar was tracking a strong thunderstorm 7
miles northeast of Old Lexington, or 11 miles north of Fairfield Bay.
This storm was nearly stationary.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Rushing...                        Turkey Creek...
Fox...

LAT...LON 3584 9216 3571 9221 3572 9234 3585 9234
TIME...MOT...LOC 1554Z 184DEG 3KT 3578 9231

46
Special weather statement, May 23, 2:01 PM CDT, 12 minutes before
Special Weather Statement
National Weather Service Little Rock AR
201 PM CDT WED MAY 23 2018

ARZ037-231930-
Scott AR-
201 PM CDT WED MAY 23 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL SCOTT COUNTY UNTIL
230 PM CDT...

At 200 PM CDT, Doppler radar was tracking a strong thunderstorm south
of Mansfield, or 10 miles northwest of Waldron, moving east at 10
mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Waldron...                        Elm Park...
Liberty...                        Hon...

LAT...LON 3497 9423 3506 9423 3506 9424 3508 9414
      3506 9414 3506 9410 3491 9410 3496 9425
TIME...MOT...LOC 1900Z 263DEG 8KT 3500 9423

53
Special weather statement, May 23, 2:04 PM CDT, 9 minutes before
Special Weather Statement
National Weather Service Little Rock AR
204 PM CDT WED MAY 23 2018

ARZ056-064-231945-
Lincoln AR-Jefferson AR-
204 PM CDT WED MAY 23 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL JEFFERSON AND
WESTERN LINCOLN COUNTIES UNTIL 245 PM CDT...

At 203 PM CDT, Doppler radar was tracking scattered strong
thunderstorms from 5 miles southeast of Pine Bluff to just south of
Star City. The storms were nearly stationary.

Wind gusts up to 50 mph will be possible with these storms.

Locations impacted include...
Pine Bluff...                     Star City...
Grady...                          Nebo...
Feenyville...                     Cottondale...
Whitefield...                     Linwood...
Cane Creek State Park...          Madding...
Tarry...                          Tamo...
Palmyra...                        Rose Hill...
Moscow...                         Crigler...
Glenlake...                       Glendale in Lincoln County...
Calhoun...                        Pinebergen...

LAT...LON 3398 9197 3398 9195 3406 9195 3407 9199
      3425 9204 3426 9176 3384 9166 3381 9192
TIME...MOT...LOC 1903Z 086DEG 8KT 3415 9185 3389 9182

46

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 7:56 PM CDTSpecial Weather StatementLZKBradley34 min
May 22, 8:51 PM CDTSpecial Weather StatementLZKJefferson24 min
May 23, 10:54 AM CDTSpecial Weather StatementLZKStone36 min
May 23, 11:54 AM CDTFlash Flood WarningLZKSearcy, Stone, Van Buren2 hr
May 23, 1:16 PM CDTFlash Flood WarningLZKCleburne, Van Buren3 hr
May 23, 2:01 PM CDTSpecial Weather StatementLZKScott29 min
May 23, 2:04 PM CDTSpecial Weather StatementLZKLincoln41 min
May 23, 3:41 PM CDTSpecial Weather StatementLZKPulaski49 min
May 23, 3:58 PM CDTSpecial Weather StatementLZKPulaski47 min
May 23, 4:08 PM CDTFlash Flood WarningLZKPulaski, Saline112 min
May 23, 4:28 PM CDTFlash Flood WarningLZKIndependence, Jackson91 min
May 23, 4:36 PM CDTFlash Flood WarningLZKPulaski82 min
May 23, 4:52 PM CDTSpecial Weather StatementLZKSaline38 min
May 23, 5:12 PM CDTSpecial Weather StatementLZKYell33 min
May 23, 5:31 PM CDTSpecial Weather StatementLZKHot Spring29 min
May 23, 5:53 PM CDTSpecial Weather StatementLZKClark52 min
May 23, 6:22 PM CDTSpecial Weather StatementLZKBaxter38 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2018Every severe thunderstorm warning in 2018

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.