Alert archive / Illinois / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 433, NWS Paducah, KY

July 29, 20234 counties in Kentucky; 7 counties in Illinois

NWS Paducah, KY issued this severe thunderstorm warning at Jul 29, 2023, 6:28 PM CDT for 4 counties in Kentucky; 7 counties in Illinois. It was in force for 35 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 29, 2023, 6:28 PM CDT (23:28 UTC)
Expired
Jul 29, 2023, 7:03 PM CDT
In force
35 min
Issued by
NWS Paducah, KY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Alexander County, IL, Hardin County, IL, Johnson County, IL, Massac County, IL, Pope County, IL, Pulaski County, IL, Saline County, IL, Ballard County, KY, Crittenden County, KY, Livingston County, KY, McCracken County, KY

The radar

The Paducah radar (KPAH), 28 km from the middle of the area, began a volume at 23:28 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 29, 3:46 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.5 hours before the alert went out and 228 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, Nashville Metro, TN at 12:00Z on 2023-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1630 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, Nashville Metro, TN at 12:00Z on 2023-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 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
1630 J/kg
Mixed-layer CIN
-138 J/kg
Mixed-layer LCL
1241 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
129 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 Paducah, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 29, 3:20 PM CDT, 3 hours 8 minutes earlier.

Area forecast discussion, Jul 29, 3:20 PM CDT, 3 hours 8 minutes before
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Hazardous weather outlook, Jul 29, 3:29 PM CDT, 2 hours 59 minutes before
Hazardous Weather Outlook
National Weather Service Paducah KY
329 PM CDT Sat Jul 29 2023

ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087-
100-107>112-114-301000-
Jefferson-Wayne IL-Edwards-Wabash-Perry IL-Franklin-Hamilton-
White-Jackson-Williamson-Saline-Gallatin-Union-Johnson-Pope-
Hardin-Alexander-Pulaski-Massac-Gibson-Pike-Posey-Vanderburgh-
Warrick-Spencer-Fulton-Hickman-Carlisle-Ballard-McCracken-Graves-
Livingston-Marshall-Calloway-Crittenden-Lyon-Trigg-Caldwell-
Union KY-Webster-Hopkins-Christian-Henderson-Daviess-McLean-
Muhlenberg-Todd-Perry MO-Bollinger-Cape Girardeau-Wayne MO-Carter-
Ripley-Butler-Stoddard-Scott-Mississippi-New Madrid-
329 PM CDT Sat Jul 29 2023 /429 PM EDT Sat Jul 29 2023/

This Hazardous Weather Outlook is for portions of southern
Illinois, southwest Indiana, western Kentucky, and southeast
Missouri.

.DAY ONE...This Afternoon and Tonight

An area of thunderstorms will move east southeast across the Quad
State this evening. The greatest coverage is expected along the
I-64 corridor and eventually down into the Pennyrile region of
Kentucky. A few strong to severe storms may produce damaging
winds, to go along with torrential rainfall and deadly lightning.

A Heat Advisory remains in effect for the entire region through
7 PM. Refer to the product for details.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

There is a chance for thunderstorms on Sunday, mainly over
southeast Missouri. A few severe storms with damaging winds cannot
be ruled out, but locally heavy rainfall and lightning will be the
primary concerns.

Daily thunderstorm chances will be focused over western portions
of the region early in the work week and then will shift to the
eastern half of the area Wednesday and Thursday. A cold front
Friday may provide a focus for more widespread thunderstorm
coverage. A few strong to severe storms cannot be ruled out,
especially Wednesday through Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be requested late this afternoon and this
evening, mainly over southern Illinois and the Evansville Tri
State.

DRS

In the hours before

Local storm report, Jul 29, 5:42 PM CDT, 46 minutes before
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Local storm report, Jul 29, 5:47 PM CDT, 41 minutes before
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Local storm report, Jul 29, 5:51 PM CDT, 37 minutes before
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Local storm report, Jul 29, 5:52 PM CDT, 36 minutes before
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Local storm report, Jul 29, 6:07 PM CDT, 21 minutes before
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Local storm report, Jul 29, 6:13 PM CDT, 15 minutes before
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The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 29, 6:22 PM CDTSevere Thunderstorm WarningPAHHenderson, Union68 min
Jul 29, 6:58 PM CDTSpecial Weather StatementPAHCaldwell, Calloway, Carlisle, Christian, Crittenden, Fulton and 7 more62 min
Jul 29, 4:52 AM CDTSpecial Weather StatementPAHJefferson, Wayne38 min
Jul 29, 5:54 AM CDTSpecial Weather StatementPAHWhite51 min
Jul 29, 7:40 AM CDTSpecial Weather StatementPAHJefferson35 min
Jul 29, 7:48 AM CDTSevere Thunderstorm WarningPAHJefferson27 min
Jul 29, 8:20 AM CDTSpecial Weather StatementPAHHamilton40 min
Jul 29, 8:34 AM CDTSevere Thunderstorm WarningPAHFranklin, Hamilton, White26 min
Jul 29, 8:57 AM CDTSpecial Weather StatementPAHWhite48 min
Jul 29, 4:42 PM CDTSpecial Weather StatementPAHFranklin48 min
Jul 29, 4:53 PM CDTSevere Thunderstorm Warning Considerable damage threatPAHJackson, Perry67 min
Jul 29, 5:15 PM CDTSevere Thunderstorm Warning Considerable damage threatPAHFranklin, Jefferson, Perry, Williamson60 min
Jul 29, 5:31 PM CDTSpecial Weather StatementPAHJackson, Union29 min
Jul 29, 5:40 PM CDTSevere Thunderstorm Warning Considerable damage threatPAHJackson, Johnson, Union, Williamson50 min
Jul 29, 5:56 PM CDTSevere Thunderstorm WarningPAHHamilton, Saline, Wayne64 min
Jul 29, 6:01 PM CDTSevere Thunderstorm WarningPAHAlexander, Johnson, Massac, Pope, Pulaski, Saline and 2 more44 min
Jul 29, 6:14 PM CDTSevere Thunderstorm WarningPAHFranklin, Jefferson, Williamson16 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2023Severe Thunderstorm Warnings in Kentucky, 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.