Alert archive / Kentucky / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 242, NWS Louisville, KY

May 18, 2006Mercer County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at May 18, 2006, 1:52 AM EDT for Mercer County, Kentucky. It was in force for 23 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 18, 2006, 1:52 AM EDT (05:52 UTC)
Expired: May 18, 2006, 2:15 AM EDT
In force: 23 min
Issued by: NWS Louisville, KY
Area: Counties, with a storm outline in the text

County Mercer County, KY

The radar

The Louisville radar (KLVX), 96 km from the middle of the area, began a volume at 05:54 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 5.9 hours before the alert went out and 203 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: 386 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1352 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 127 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 17, 10:00 PM EDT, 3 hours 52 minutes earlier.

Area forecast discussion, May 17, 10:00 PM EDT, 3 hours 52 minutes before

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Hazardous weather outlook, May 17, 3:30 PM EDT, 10 hours 22 minutes before

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In the hours before

Special weather statement, May 17, 8:49 PM EDT, 5 hours 3 minutes before

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Special weather statement, May 17, 11:16 PM EDT, 2 hours 36 minutes before

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Special weather statement, May 17, 11:55 PM EDT, 1 hour 57 minutes before

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Special weather statement, May 18, 12:24 AM EDT, 1 hour 28 minutes before

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Special weather statement, May 18, 12:56 AM EDT, 56 minutes before

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Special weather statement, May 18, 1:31 AM EDT, 21 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 18, 3:20 PM EDT	Severe Thunderstorm Warning	LMK	Harrison	25 min
May 18, 3:39 PM EDT	Severe Thunderstorm Warning	LMK	Nicholas	36 min
May 18, 3:40 PM EDT	Severe Thunderstorm Warning	LMK	Bullitt, Hardin	35 min
May 18, 3:43 PM EDT	Severe Thunderstorm Warning	LMK	Henry	28 min
May 18, 5:56 PM EDT	Severe Thunderstorm Warning	LMK	Adair	34 min
May 18, 6:13 PM EDT	Severe Thunderstorm Warning	LMK	Russell	32 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2006 Every severe thunderstorm warning in 2006

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.