Alert archive / Kentucky / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 226, NWS Louisville, KY

May 2, 20115 counties in Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at May 2, 2011, 5:13 PM CDT for 5 counties in Kentucky. It was in force for 32 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 2, 2011, 5:13 PM CDT (22:13 UTC)
Expired: May 2, 2011, 5:45 PM CDT
In force: 32 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 0.5 in
Wind: 60.0 mph

Counties Adair County, KY, Barren County, KY, Cumberland County, KY, Metcalfe County, KY, Monroe County, KY

The radar

The Nashville radar (KOHX), 114 km from the middle of the area, began a volume at 22:17 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 125 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: 508 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 594 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 0.8

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 May 2, 2:21 PM CDT, 2 hours 52 minutes earlier.

Area forecast discussion, May 2, 2:21 PM CDT, 2 hours 52 minutes before

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Hazardous weather outlook, May 2, 2:49 PM CDT, 2 hours 24 minutes before

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In the hours before

Special weather statement, May 2, 4:20 PM CDT, 53 minutes before

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Special weather statement, May 2, 4:56 PM CDT, 17 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 2, 1:02 PM CDT	Areal Flood Warning	LMK	Breckinridge, Hancock, Meade, Ohio, Trimble	27 hr
May 2, 4:20 PM CDT	Special Weather Statement	LMK	Allen	25 min
May 2, 4:56 PM CDT	Special Weather Statement	LMK	Barren, Metcalfe, Monroe	34 min
May 2, 5:45 PM CDT	Special Weather Statement	LMK	Adair, Green, Marion, Taylor	30 min
May 2, 6:15 PM CDT	Special Weather Statement	LMK	Boyle, Casey, Marion, Russell	30 min
May 2, 12:13 AM CDT	Areal Flood Advisory	LMK	Crawford, Dubois, Orange, Washington	6 hr
May 2, 1:38 AM CDT	Flash Flood Warning	LMK	Crawford, Dubois, Orange	3 hr
May 2, 3:12 AM CDT	Flash Flood Warning	LMK	Clark, Scott, Washington	3 hr
May 2, 3:52 AM CDT	Flash Flood Warning	LMK	Harrison	2 hr
May 2, 3:54 AM CDT	Special Weather Statement	LMK	Floyd, Harrison	36 min
May 2, 4:23 AM CDT	Areal Flood Warning	LMK	Crawford, Dubois, Orange	3 hr
May 2, 5:51 AM CDT	Areal Flood Warning	LMK	Clark, Harrison, Scott, Washington	3 hr
May 2, 7:02 AM CDT	River Flood Warning	LMK	Jefferson, Scott	41 hr
May 2, 7:04 AM CDT	Areal Flood Warning	LMK	Crawford, Dubois, Orange, Perry	6 hr
May 2, 8:40 AM CDT	Areal Flood Warning	LMK	Clark, Harrison, Washington	4 hr
May 2, 10:03 AM CDT	River Flood Warning	LMK	Harrison, Washington	24 hr

Nearby

Severe Thunderstorm Warnings in Kentucky, 2011 Every severe thunderstorm warning in 2011

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.