Alert archive / Kentucky / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 128, NWS Louisville, KY

June 24, 2018Logan County, Simpson County, Warren County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Jun 24, 2018, 3:25 PM CDT for Logan County, Simpson County, Warren County, Kentucky. 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: Jun 24, 2018, 3:25 PM CDT (20:25 UTC)
Expired: Jun 24, 2018, 4:00 PM CDT
In force: 35 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

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

The radar

The Ft Campbell radar (KHPX), 60 km from the middle of the area, began a volume at 20:27 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, 8.4 hours before the alert went out and 82 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: 782 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 948 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 112 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.8

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 Jun 24, 1:41 PM CDT, 1 hour 44 minutes earlier.

Area forecast discussion, Jun 24, 1:41 PM CDT, 1 hour 44 minutes before

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Hazardous weather outlook, Jun 24, 1:53 PM CDT, 1 hour 32 minutes before

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In the hours before

Special weather statement, Jun 24, 1:58 PM CDT, 1 hour 27 minutes before

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Special weather statement, Jun 24, 2:03 PM CDT, 1 hour 22 minutes before

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Special weather statement, Jun 24, 2:43 PM CDT, 42 minutes before

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Special weather statement, Jun 24, 2:51 PM CDT, 34 minutes before

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Special weather statement, Jun 24, 3:01 PM CDT, 24 minutes before

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Special weather statement, Jun 24, 3:07 PM CDT, 18 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
Jun 24, 1:58 PM CDT	Special Weather Statement	LMK	Warren	47 min
Jun 24, 2:03 PM CDT	Special Weather Statement	LMK	Cumberland, Monroe	42 min
Jun 24, 2:08 PM CDT	Severe Thunderstorm Warning	LMK	Clinton, Cumberland, Monroe	37 min
Jun 24, 2:40 PM CDT	Severe Thunderstorm Warning	LMK	Allen, Simpson, Warren	35 min
Jun 24, 2:43 PM CDT	Special Weather Statement	LMK	Clinton, Cumberland	47 min
Jun 24, 2:51 PM CDT	Special Weather Statement	LMK	Monroe	24 min
Jun 24, 3:01 PM CDT	Special Weather Statement	LMK	Logan	29 min
Jun 24, 3:07 PM CDT	Special Weather Statement	LMK	Allen	23 min
Jun 24, 3:27 PM CDT	Special Weather Statement	LMK	Allen	33 min
Jun 24, 3:36 PM CDT	Special Weather Statement	LMK	Allen	9 min
Jun 24, 3:49 PM CDT	Special Weather Statement	LMK	Allen	26 min
Jun 24, 4:17 PM CDT	Special Weather Statement	LMK	Allen	28 min
Jun 24, 4:23 PM CDT	Special Weather Statement	LMK	Ohio	37 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2018 Every 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.