Alert archive / Kentucky / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 219, NWS Louisville, KY

June 22, 2009Butler County, Logan County, Warren County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Jun 22, 2009, 6:54 PM CDT for Butler County, Logan County, Warren County, Kentucky. It was in force for 51 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 22, 2009, 6:54 PM CDT (23:54 UTC)
Expired: Jun 22, 2009, 7:45 PM CDT
In force: 51 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon

Counties Butler County, KY, Logan County, KY, Warren County, KY

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.9 hours before the alert went out and 99 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: 1947 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 1092 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 3.5

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 22, 6:45 PM CDT, 9 minutes earlier.

Area forecast discussion, Jun 22, 6:45 PM CDT, 9 minutes before

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Hazardous weather outlook, Jun 22, 2:24 PM CDT, 4 hours 30 minutes before

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In the hours before

Special weather statement, Jun 22, 4:39 PM CDT, 2 hours 15 minutes before

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Special weather statement, Jun 22, 5:04 PM CDT, 1 hour 50 minutes before

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Special weather statement, Jun 22, 5:25 PM CDT, 1 hour 29 minutes before

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Special weather statement, Jun 22, 5:32 PM CDT, 1 hour 22 minutes before

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Special weather statement, Jun 22, 6:05 PM CDT, 49 minutes before

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Local storm report, Jun 22, 6:35 PM CDT, 19 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 22, 8:12 AM CDT	Areal Flood Advisory	LMK	Jefferson, Oldham	118 min
Jun 22, 8:47 AM CDT	Severe Thunderstorm Warning	LMK	Jefferson	28 min
Jun 22, 9:30 AM CDT	Areal Flood Advisory	LMK	Anderson, Bullitt, Hardin, Jefferson, Larue, Marion and 4 more	93 min
Jun 22, 10:19 AM CDT	Areal Flood Advisory	LMK	Boyle, Casey, Green, Hardin, Hart, Larue and 5 more	107 min
Jun 22, 11:12 AM CDT	Areal Flood Advisory	LMK	Adair, Barren, Casey, Clinton, Cumberland, Green and 6 more	2 hr
Jun 22, 12:07 PM CDT	Severe Thunderstorm Warning	LMK	Clinton	23 min
Jun 22, 6:26 PM CDT	Severe Thunderstorm Warning	LMK	Butler, Ohio	49 min
Jun 22, 6:43 PM CDT	Severe Thunderstorm Warning	LMK	Barren, Butler, Edmonson, Grayson, Hart, Warren	47 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2009 Every severe thunderstorm warning in 2009

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.