Alert archive / Kentucky / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 236, NWS Louisville, KY

June 30, 2015Oldham County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Jun 30, 2015, 9:04 PM EDT for Oldham County, Kentucky. It was in force for 26 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 30, 2015, 9:04 PM EDT (01:04 UTC)
Expired: Jun 30, 2015, 9:30 PM EDT
In force: 26 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Oldham County, KY

The radar

The Louisville radar (KLVX), 64 km from the middle of the area, began a volume at 01:05 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

Lincoln, IL (KILX), launched 00:00Z, 1.1 hours before the alert went out and 334 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: 81 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 1498 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 95 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 30, 8:58 PM EDT, 6 minutes earlier.

Area forecast discussion, Jun 30, 8:58 PM EDT, 6 minutes before

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Hazardous weather outlook, Jun 30, 9:01 PM EDT, 3 minutes before

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In the hours before

Local storm report, Jun 30, 8:27 PM EDT, 37 minutes before

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Local storm report, Jun 30, 8:28 PM EDT, 36 minutes before

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Local storm report, Jun 30, 8:46 PM EDT, 18 minutes before

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Local storm report, Jun 30, 8:59 PM EDT, 5 minutes before

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Local storm report, Jun 30, 9:01 PM EDT, 3 minutes before

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Local storm report, Jun 30, 9:02 PM EDT, 2 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 30, 8:07 PM EDT	Severe Thunderstorm Warning	LMK	Jefferson, Shelby, Spencer	28 min
Jun 30, 8:20 PM EDT	Areal Flood Advisory	LMK	Henry, Jefferson, Oldham, Shelby	3 hr
Jun 30, 8:36 PM EDT	Severe Thunderstorm Warning	LMK	Shelby, Spencer	29 min
Jun 30, 9:38 PM EDT	Special Weather Statement	LMK	Shelby	47 min
Jul 1, 12:25 AM EDT	Areal Flood Advisory	LMK	Oldham	4 hr
Jul 1, 12:07 PM EDT	Special Weather Statement	LMK	Larue	28 min
Jul 1, 1:05 PM EDT	Special Weather Statement	LMK	Adair, Boyle, Casey, Marion, Russell	45 min
Jul 1, 2:42 PM EDT	Special Weather Statement	LMK	Spencer	28 min
Jul 1, 2:45 PM EDT	Special Weather Statement	LMK	Jessamine	30 min
Jul 1, 3:02 PM EDT	Special Weather Statement	LMK	Breckinridge	28 min
Jul 1, 3:14 PM EDT	Special Weather Statement	LMK	Spencer	31 min
Jul 1, 3:37 PM EDT	Special Weather Statement	LMK	Hardin	48 min
Jul 1, 3:38 PM EDT	Special Weather Statement	LMK	Madison	32 min
Jun 30, 9:17 PM EDT	Special Weather Statement	LMK	Washington	43 min
Jul 1, 1:55 PM EDT	Special Weather Statement	LMK	Crawford, Floyd, Harrison	30 min
Jul 1, 2:04 PM EDT	Areal Flood Advisory	LMK	Crawford, Harrison	116 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2015 Every severe thunderstorm warning in 2015

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.