Alert archive / Kentucky / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 97, NWS Louisville, KY

May 7, 20234 counties in Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at May 7, 2023, 5:12 PM CDT for 4 counties in Kentucky. It was in force for 33 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 7, 2023, 5:12 PM CDT (22:12 UTC)
Expired: May 7, 2023, 5:45 PM CDT
In force: 33 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Damage threat: Considerable
Hail: 1.5 in
Wind: 70.0 mph

Counties Allen County, KY, Logan County, KY, Simpson County, KY, Warren County, KY

The radar

The Nashville radar (KOHX), 66 km from the middle of the area, began a volume at 22:14 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 12:00Z, 10.2 hours before the alert went out and 79 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: 117 J/kg
Mixed-layer CIN: -332 J/kg
Mixed-layer LCL: 802 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 189 m²/s²
0-3 km storm-relative helicity: 303 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 Louisville, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at May 7, 3:00 PM CDT, 2 hours 12 minutes earlier.

Area forecast discussion, May 7, 3:00 PM CDT, 2 hours 12 minutes before

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Hazardous weather outlook, May 7, 3:27 PM CDT, 1 hour 45 minutes before

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In the hours before

Special weather statement, May 7, 1:47 PM CDT, 3 hours 25 minutes before

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Local storm report, May 7, 2:13 PM CDT, 2 hours 59 minutes before

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Local storm report, May 7, 2:34 PM CDT, 2 hours 38 minutes before

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Local storm report, May 7, 2:38 PM CDT, 2 hours 34 minutes before

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Local storm report, May 7, 2:50 PM CDT, 2 hours 22 minutes before

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Special weather statement, May 7, 4:36 PM CDT, 36 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 6:09 AM CDT	Special Weather Statement	LMK	Henry	21 min
May 7, 6:52 AM CDT	Special Weather Statement	LMK	Henry, Trimble	38 min
May 7, 7:07 AM CDT	Areal Flood Advisory	LMK	Henry, Oldham, Trimble	2 hr
May 7, 7:46 AM CDT	Special Weather Statement	LMK	Bullitt, Jefferson, Meade, Oldham, Shelby	44 min
May 7, 7:51 AM CDT	Severe Thunderstorm Warning	LMK	Henry, Jefferson, Oldham, Shelby	24 min
May 7, 8:07 AM CDT	Severe Thunderstorm Warning	LMK	Bullitt, Jefferson, Nelson, Spencer	23 min
May 7, 8:29 AM CDT	Severe Thunderstorm Warning	LMK	Anderson, Shelby, Spencer	16 min
May 7, 8:36 AM CDT	Special Weather Statement	LMK	Anderson, Boyle, Bullitt, Fayette, Franklin, Garrard and 10 more	54 min
May 7, 8:40 AM CDT	Special Weather Statement	LMK	Bourbon, Clark, Harrison, Nicholas, Scott	35 min
May 7, 8:44 AM CDT	Severe Thunderstorm Warning	LMK	Anderson, Franklin, Mercer, Shelby, Spencer, Woodford	25 min
May 7, 8:48 AM CDT	Special Weather Statement	LMK	Hancock	27 min
May 7, 9:12 AM CDT	Areal Flood Advisory	LMK	Bourbon, Clark, Fayette, Harrison, Nicholas, Scott	3 hr
May 7, 9:18 AM CDT	Severe Thunderstorm Warning	LMK	Bourbon, Clark, Fayette, Madison	42 min
May 7, 9:20 AM CDT	Special Weather Statement	LMK	Boyle, Breckinridge, Casey, Clark, Garrard, Hardin and 8 more	55 min
May 7, 10:01 AM CDT	Special Weather Statement	LMK	Breckinridge, Butler, Grayson, Hardin, Ohio	59 min
May 7, 10:07 AM CDT	Special Weather Statement	LMK	Casey, Garrard, Lincoln, Madison, Taylor	38 min
May 7, 11:01 AM CDT	Special Weather Statement	LMK	Butler, Edmonson, Grayson	44 min
May 7, 11:17 AM CDT	Severe Thunderstorm Warning	LMK	Edmonson, Grayson, Hart	28 min
May 7, 12:02 PM CDT	Special Weather Statement	LMK	Barren	28 min
May 7, 12:31 PM CDT	Special Weather Statement	LMK	Adair, Metcalfe	44 min
May 7, 12:58 PM CDT	Severe Thunderstorm Warning	LMK	Butler, Logan	32 min
May 7, 1:10 PM CDT	Special Weather Statement	LMK	Warren	35 min
May 7, 1:17 PM CDT	Severe Thunderstorm Warning	LMK	Logan	13 min
May 7, 1:31 PM CDT	Special Weather Statement	LMK	Logan, Simpson	29 min
May 7, 1:47 PM CDT	Special Weather Statement	LMK	Allen	43 min
May 7, 4:36 PM CDT	Special Weather Statement	LMK	Logan	39 min
May 7, 4:41 PM CDT	Severe Thunderstorm Warning	LMK	Logan	34 min
May 7, 5:30 AM CDT	Special Weather Statement	LMK	Jefferson	30 min
May 7, 5:54 AM CDT	Special Weather Statement	LMK	Jefferson, Scott, Washington	36 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2023 Every 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.