Alert archive / Arkansas / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 271, NWS Memphis, TN

July 21, 20234 counties in Arkansas

NWS Memphis, TN issued this severe thunderstorm warning at Jul 21, 2023, 12:25 PM CDT for 4 counties in Arkansas. It was in force for 50 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
Jul 21, 2023, 12:25 PM CDT (17:25 UTC)
Expired
Jul 21, 2023, 1:15 PM CDT
In force
50 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Craighead County, AR, Crittenden County, AR, Cross County, AR, Poinsett County, AR

The radar

The Memphis radar (KNQA), 67 km from the middle of the area, began a volume at 17:29 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
Jul 21, 12:25 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 5.4 hours before the alert went out and 93 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 12:00Z on 2023-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3445 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, Little Rock, AR at 12:00Z on 2023-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 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
3445 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
699 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
147 m²/s²
Significant tornado parameter
1.1
Supercell composite
5.3

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 Memphis, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 21, 6:10 AM CDT, 6 hours 15 minutes earlier.

Area forecast discussion, Jul 21, 6:10 AM CDT, 6 hours 15 minutes before
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In the hours before

Special weather statement, Jul 21, 6:59 AM CDT, 5 hours 26 minutes before
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Special weather statement, Jul 21, 7:37 AM CDT, 4 hours 48 minutes before
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      <div class="status" id="status">Temporary Notice</div>
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Special weather statement, Jul 21, 12:14 PM CDT, 11 minutes before
Special Weather Statement
National Weather Service Memphis TN
1214 PM CDT Fri Jul 21 2023

MSZ001-002-TNZ088-089-211745-
Marshall MS-DeSoto MS-Fayette TN-Shelby TN-
1214 PM CDT Fri Jul 21 2023

...A strong thunderstorm will impact portions of northeastern DeSoto,
northwestern Marshall, southwestern Fayette and southeastern Shelby
Counties through 1245 PM CDT...

At 1213 PM CDT, Doppler radar was tracking a strong thunderstorm near
Olive Branch, moving east at 20 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Collierville, Germantown, Olive Branch, Memphis, Mt Pleasant,
Slayden, Piperton, Rossville, Cayce, Fairhaven, Elba, Canadaville,
Handy Corner, Taska, Kirk, Miller, Cedarview and Hickory Withe.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3488 8982 3505 8988 3519 8952 3493 8942
TIME...MOT...LOC 1713Z 251DEG 19KT 3499 8977

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

AC3

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 21, 3:10 AM CDTExcessive Heat WarningMEGCoahoma, Tallahatchie16 hr
Jul 21, 4:12 AM CDTFlash Flood WarningMEGDeSoto, Marshall3 hr
Jul 21, 6:59 AM CDTSpecial Weather StatementMEGDeSoto, Tate, Tunica31 min
Jul 21, 7:11 AM CDTAreal Flood WarningMEGDeSoto, Marshall3 hr
Jul 21, 7:37 AM CDTSpecial Weather StatementMEGPanola38 min
Jul 21, 12:43 PM CDTSpecial Weather StatementMEGBenton32 min
Jul 21, 1:10 PM CDTSpecial Weather StatementMEGMarshall35 min
Jul 21, 1:16 PM CDTSevere Thunderstorm WarningMEGDeSoto, Marshall, Tunica59 min
Jul 21, 1:40 PM CDTSevere Thunderstorm WarningMEGAlcorn, Benton, Marshall, Tippah50 min
Jul 21, 1:49 PM CDTFlash Flood WarningMEGDeSoto2 hr
Jul 21, 1:59 PM CDTFlash Flood WarningMEGBenton, Marshall2 hr
Jul 21, 2:07 PM CDTSevere Thunderstorm WarningMEGBenton, Marshall, Tippah53 min
Jul 21, 2:27 PM CDTSevere Thunderstorm WarningMEGAlcorn, Benton, Marshall, Tippah48 min
Jul 21, 2:54 PM CDTSevere Thunderstorm WarningMEGAlcorn, Tippah, Tishomingo51 min
Jul 21, 2:57 PM CDTSevere Thunderstorm WarningMEGAlcorn, Benton, Itawamba, Lafayette, Lee, Marshall and 5 more63 min
Jul 21, 3:45 PM CDTSevere Thunderstorm WarningMEGItawamba, Lee, Monroe, Pontotoc28 min
Jul 21, 3:46 PM CDTSevere Thunderstorm WarningMEGItawamba, Prentiss, Tishomingo29 min
Jul 21, 4:11 PM CDTSpecial Weather StatementMEGChickasaw, Monroe49 min
Jul 21, 4:28 PM CDTSevere Thunderstorm WarningMEGMonroe32 min
Jul 20, 9:40 PM CDTSpecial Weather StatementMEGTipton35 min
Jul 20, 10:15 PM CDTSpecial Weather StatementMEGHaywood30 min
Jul 20, 11:01 PM CDTSpecial Weather StatementMEGHardin29 min
Jul 21, 12:50 AM CDTSpecial Weather StatementMEGHaywood25 min
Jul 21, 1:43 AM CDTSpecial Weather StatementMEGFayette32 min
Jul 21, 2:28 AM CDTAreal Flood AdvisoryMEGFayette, Shelby, Tipton3 hr
Jul 21, 2:35 AM CDTSpecial Weather StatementMEGFayette, Shelby40 min
Jul 21, 2:53 AM CDTFlash Flood WarningMEGFayette, Shelby, Tipton3 hr
Jul 21, 3:16 AM CDTSpecial Weather StatementMEGFayette29 min
Jul 21, 12:14 PM CDTSpecial Weather StatementMEGShelby31 min
Jul 21, 2:11 PM CDTFlash Flood WarningMEGShelby, Tipton117 min
Jul 21, 3:20 PM CDTAreal Flood AdvisoryMEGDecatur, Henderson2 hr
Jul 21, 12:05 PM CDTSevere Thunderstorm WarningMEGCross, Lee, St. Francis40 min
Jul 21, 12:42 PM CDTSevere Thunderstorm WarningMEGCraighead, Crittenden, Cross, Lee, Mississippi, Poinsett and 1 more48 min
Jul 21, 1:40 PM CDTAreal Flood AdvisoryMEGCrittenden, Cross113 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2023Every severe thunderstorm warning in 2023

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.