Alert archive / Kentucky / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 147, NWS Paducah, KY

July 12, 2020Crittenden County, Union County, Webster County, Kentucky

NWS Paducah, KY issued this severe thunderstorm warning at Jul 12, 2020, 1:46 AM CDT for Crittenden County, Union County, Webster County, Kentucky. 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: Jul 12, 2020, 1:46 AM CDT (06:46 UTC)
Expired: Jul 12, 2020, 2:15 AM CDT
In force: 29 min
Issued by: NWS Paducah, KY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Crittenden County, KY, Union County, KY, Webster County, KY

The radar

The Evansville,IN radar (KVWX), 85 km from the middle of the area, began a volume at 06:48 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

Nashville Metro, TN (KBNA), launched 00:00Z, 6.8 hours before the alert went out and 193 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: 124 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 1921 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 64 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 11, 11:18 PM CDT, 2 hours 28 minutes earlier.

Area forecast discussion, Jul 11, 11:18 PM CDT, 2 hours 28 minutes before

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Hazardous weather outlook, Jul 11, 3:18 PM CDT, 10 hours 28 minutes before

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In the hours before

Special weather statement, Jul 11, 8:44 PM CDT, 5 hours 2 minutes before

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Special weather statement, Jul 12, 12:23 AM CDT, 1 hour 23 minutes before

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Special weather statement, Jul 12, 12:40 AM CDT, 1 hour 6 minutes before

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Special weather statement, Jul 12, 12:44 AM CDT, 1 hour 2 minutes before

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Special weather statement, Jul 12, 1:06 AM CDT, 40 minutes before

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Special weather statement, Jul 12, 1:35 AM CDT, 11 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 12:40 AM CDT	Special Weather Statement	PAH	Union	50 min
Jul 12, 12:48 AM CDT	Severe Thunderstorm Warning	PAH	Crittenden, Union	42 min
Jul 12, 1:35 AM CDT	Special Weather Statement	PAH	Caldwell, Christian, Crittenden, Henderson, Hopkins, Lyon and 3 more	40 min
Jul 12, 2:23 AM CDT	Special Weather Statement	PAH	Christian, Hopkins, Trigg	52 min
Jul 12, 3:26 AM CDT	Areal Flood Advisory	PAH	Caldwell, Christian, Crittenden, Hopkins, Lyon, Trigg and 2 more	3 hr
Jul 12, 5:52 AM CDT	Areal Flood Advisory	PAH	Calloway, Graves, McCracken, Marshall	3 hr
Jul 12, 10:08 AM CDT	Special Weather Statement	PAH	Henderson	37 min
Jul 12, 1:14 PM CDT	Special Weather Statement	PAH	Daviess	31 min
Jul 12, 2:30 PM CDT	Areal Flood Advisory	PAH	Daviess, McLean	2 hr
Jul 12, 3:27 PM CDT	Special Weather Statement	PAH	Caldwell, Lyon	33 min
Jul 12, 3:29 PM CDT	Special Weather Statement	PAH	Muhlenberg	31 min
Jul 12, 4:01 PM CDT	Special Weather Statement	PAH	Christian	44 min
Jul 12, 4:20 PM CDT	Areal Flood Advisory	PAH	Caldwell, Christian, Trigg	115 min
Jul 12, 4:29 PM CDT	Special Weather Statement	PAH	Christian, Trigg	46 min
Jul 12, 12:13 AM CDT	Severe Thunderstorm Warning	PAH	Wayne	32 min
Jul 12, 12:23 AM CDT	Special Weather Statement	PAH	Edwards, Wabash	37 min
Jul 12, 12:44 AM CDT	Special Weather Statement	PAH	Wayne	46 min
Jul 12, 1:19 AM CDT	Severe Thunderstorm Warning	PAH	Wayne, White	41 min
Jul 12, 2:56 AM CDT	Special Weather Statement	PAH	Cape Girardeau	49 min
Jul 12, 6:02 AM CDT	Special Weather Statement	PAH	Butler	28 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 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.