Alert archive / Kentucky / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 30, NWS Louisville, KY
NWS Louisville, KY issued this severe thunderstorm warning at Apr 24, 2010, 7:45 PM EDT for 4 counties in Kentucky. It was in force for 30 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
- Apr 24, 2010, 7:45 PM EDT (23:45 UTC)
- Expired
- Apr 24, 2010, 8:15 PM EDT
- In force
- 30 min
- Issued by
- NWS Louisville, KY
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 70.0 mph
Counties Bullitt County, KY, Nelson County, KY, Shelby County, KY, Spencer County, KY
The radar
The Louisville radar (KLVX), 46 km from the middle of the area, began a volume at 23:48 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 24, 2:17 PM EDT | Tornado Watch | SPC | 8 hr |
| Apr 24, 7:15 PM EDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 11.8 hours before the alert went out and 233 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.
- Mixed-layer CAPE
- 23 J/kg
- Mixed-layer CIN
- -162 J/kg
- Mixed-layer LCL
- 1184 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 137 m²/s²
- 0-3 km storm-relative helicity
- 272 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 Apr 24, 7:41 PM EDT, 4 minutes earlier.
Area forecast discussion, Apr 24, 7:41 PM EDT, 4 minutes before
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</html>Hazardous weather outlook, Apr 24, 3:15 PM EDT, 4 hours 30 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LOUISVILLE KY 315 PM EDT SAT APR 24 2010 INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067- 070>078-081-082-250400- ORANGE IN-WASHINGTON IN-SCOTT IN-JEFFERSON IN-DUBOIS IN- CRAWFORD IN-PERRY IN-HARRISON IN-FLOYD IN-CLARK IN-HANCOCK KY- BRECKINRIDGE KY-MEADE KY-OHIO KY-GRAYSON KY-HARDIN KY-BULLITT KY- JEFFERSON KY-OLDHAM KY-TRIMBLE KY-HENRY KY-SHELBY KY-FRANKLIN KY- SCOTT KY-HARRISON KY-SPENCER KY-ANDERSON KY-WOODFORD KY- FAYETTE KY-BOURBON KY-NICHOLAS KY-NELSON KY-WASHINGTON KY- MERCER KY-JESSAMINE KY-CLARK KY-LARUE KY-MARION KY-BOYLE KY- GARRARD KY-MADISON KY-BUTLER KY-EDMONSON KY-HART KY-GREEN KY- TAYLOR KY-CASEY KY-LINCOLN KY-LOGAN KY-WARREN KY-SIMPSON KY- ALLEN KY-BARREN KY-MONROE KY-METCALFE KY-ADAIR KY-RUSSELL KY- CUMBERLAND KY-CLINTON KY- 315 PM EDT SAT APR 24 2010 /215 PM CDT SAT APR 24 2010/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL INDIANA AND CENTRAL KENTUCKY. .DAY ONE...TONIGHT. SHOWERS AND STORMS ARE EXPECTED TO CONTINUE ACROSS THE REGION THIS EVENING. THESE STORMS ARE IN ASSOCIATION WITH A DEVELOPING VIGOROUS LOW PRESSURE SYSTEM EXPECTED TO MOVE NORTH ACROSS THE MISSISSIPPI RIVER VALLEY. MULTIPLE LINES OF STORMS ARE EXPECTED TO BRING THE POTENTIAL FOR DAMAGING WINDS AS WELL AS STRONG TORNADOES...LARGE HAIL...AND FREQUENT CLOUD TO GROUND LIGHTNING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. A COLD FRONT WILL SAG SOUTH ACROSS THE OHIO RIVER DURING THE LATE AFTERNOON HOURS ON SUNDAY. SCATTERED THUNDERSTORMS OVER SOUTHERN INDIANA DURING THE AFTERNOON WILL MOVE SOUTHEAST ACROSS NORTH CENTRAL KENTUCKY BE EARLY EVENING. THESE SHOWERS AND STORMS MAY BRING GUSTY WINDS AND SMALL HAIL TO LOCATIONS UNDER SOME OF THE STRONGEST CELLS. ANOTHER COLD FRONT WILL APPROACH THE REGION FRIDAY...BRINGING A SLIGHT CHANCE FOR THUNDERSTORMS. .SPOTTER INFORMATION STATEMENT... SPOTTERS SHOULD MONITOR THE WEATHER SITUATION THIS EVENING AND CALL IN REPORTS AS NECESSARY. RJS/JBS
In the hours before
Local storm report, Apr 24, 7:13 PM EDT, 32 minutes before
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</html>Local storm report, Apr 24, 7:21 PM EDT, 24 minutes before
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</html>Local storm report, Apr 24, 7:26 PM EDT, 19 minutes before
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</html>Local storm report, Apr 24, 7:27 PM EDT, 18 minutes before
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</html>Local storm report, Apr 24, 7:38 PM EDT, 7 minutes before
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</html>Local storm report, Apr 24, 7:43 PM EDT, 2 minutes before
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</html>The office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 24, 2:21 PM EDT | Special Weather Statement | LMK | Bullitt | 24 min |
| Apr 24, 2:35 PM EDT | Special Weather Statement | LMK | Monroe | 40 min |
| Apr 24, 4:37 PM EDT | Special Weather Statement | LMK | Breckinridge, Hancock, Ohio | 23 min |
| Apr 24, 4:46 PM EDT | Special Weather Statement | LMK | Breckinridge, Hancock, Ohio | 14 min |
| Apr 24, 5:31 PM EDT | Severe Thunderstorm Warning | LMK | Logan | 32 min |
| Apr 24, 5:36 PM EDT | Severe Thunderstorm Warning | LMK | Breckinridge, Hancock, Ohio | 39 min |
| Apr 24, 5:38 PM EDT | Tornado Warning | LMK | Logan | 37 min |
| Apr 24, 5:43 PM EDT | Severe Thunderstorm Warning | LMK | Butler | 21 min |
| Apr 24, 5:59 PM EDT | Tornado Warning | LMK | Butler | 16 min |
| Apr 24, 6:13 PM EDT | Special Weather Statement | LMK | Breckinridge, Grayson, Hardin, Meade | 62 min |
| Apr 24, 6:15 PM EDT | Severe Thunderstorm Warning | LMK | Butler, Edmonson, Logan, Simpson, Warren | 45 min |
| Apr 24, 6:49 PM EDT | Severe Thunderstorm Warning | LMK | Allen, Barren, Edmonson, Hart, Warren | 41 min |
| Apr 24, 6:51 PM EDT | Severe Thunderstorm Warning | LMK | Grayson | 24 min |
| Apr 24, 7:06 PM EDT | Areal Flood Advisory | LMK | Allen, Butler, Logan, Simpson, Warren | 114 min |
| Apr 24, 7:11 PM EDT | Severe Thunderstorm Warning | LMK | Green, Hardin, Hart, Larue, Taylor | 34 min |
| Apr 24, 7:35 PM EDT | Severe Thunderstorm Warning | LMK | Larue, Marion, Nelson, Taylor, Washington | 25 min |
| Apr 24, 7:46 PM EDT | Areal Flood Advisory | LMK | Breckinridge, Grayson, Meade, Ohio | 119 min |
| Apr 24, 7:56 PM EDT | Areal Flood Advisory | LMK | Anderson, Bullitt, Grayson, Green, Hardin, Hart and 10 more | 3 hr |
| Apr 24, 7:59 PM EDT | Severe Thunderstorm Warning | LMK | Boyle, Casey, Garrard, Jessamine, Lincoln, Marion and 3 more | 31 min |
Nearby
Severe Thunderstorm Warnings in Kentucky, 2010Every severe thunderstorm warning in 2010
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.