Alert archive / Kentucky / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 108, NWS Louisville, KY
NWS Louisville, KY issued this severe thunderstorm warning at Apr 13, 2009, 12:52 PM CDT for Breckinridge County, Hancock County, Kentucky; Perry County, Indiana. 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
- Apr 13, 2009, 12:52 PM CDT (17:52 UTC)
- Expired
- Apr 13, 2009, 1:15 PM CDT
- In force
- 23 min
- Issued by
- NWS Louisville, KY
- Area
- Storm-based polygon
Counties Perry County, IN, Breckinridge County, KY, Hancock County, KY
The radar
The Louisville radar (KLVX), 59 km from the middle of the area, began a volume at 17:52 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, 5.9 hours before the alert went out and 197 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 730 m above ground
- 0-6 km bulk shear
- 87 kt
- 0-1 km storm-relative helicity
- 366 m²/s²
- 0-3 km storm-relative helicity
- 512 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 13, 12:08 PM CDT, 44 minutes earlier.
Area forecast discussion, Apr 13, 12:08 PM CDT, 44 minutes before
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</html>Hazardous weather outlook, Apr 13, 9:50 AM CDT, 3 hours 2 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LOUISVILLE KY 1050 AM EDT MON APR 13 2009 INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067- 070>078-081-082-141500- 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- 1050 AM EDT MON APR 13 2009 /950 AM CDT MON APR 13 2009/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL INDIANA AND CENTRAL KENTUCKY. .DAY ONE...TODAY AND TONIGHT. A COLD FRONT WILL BRING THUNDERSTORMS TO THE REGION THIS AFTERNOON AND EVENING. SOME OF THE STORMS COULD BE SEVERE...WITH LARGE HAIL BEING THE PRIMARY THREAT. A FEW STRONG WIND GUSTS AND AN ISOLATED TORNADO WILL BE SECONDARY THREATS. THE MOST LIKELY TIME FOR SEVERE WEATHER WILL BE BETWEEN 3PM AND 9PM EDT...2PM AND 8PM CDT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. ISOLATED THUNDERSTORMS WILL RETURN TO THE REGION SATURDAY...WITH BETTER CHANCES SATURDAY NIGHT INTO SUNDAY AS LOW PRESSURE APPROACHES FROM THE WEST. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUESTED TODAY. SPOTTERS AND EMERGENCY MANAGERS SHOULD MONITOR NOAA ALL-HAZARDS WEATHER RADIO...OR WEATHER.GOV/LOUISVILLE ON THE INTERNET FOR THE LATEST FORECASTS AND UPDATES.
The office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 1:15 PM CDT | Severe Thunderstorm Warning | LMK | Breckinridge, Meade | 30 min |
| Apr 13, 1:36 PM CDT | Severe Thunderstorm Warning | LMK | Breckinridge | 24 min |
| Apr 13, 1:41 PM CDT | Severe Thunderstorm Warning | LMK | Jefferson | 34 min |
| Apr 13, 1:49 PM CDT | Severe Thunderstorm Warning | LMK | Hardin | 26 min |
| Apr 13, 2:11 PM CDT | Severe Thunderstorm Warning | LMK | Jefferson | 34 min |
| Apr 13, 2:43 PM CDT | Severe Thunderstorm Warning | LMK | Jefferson, Oldham | 32 min |
| Apr 13, 2:54 PM CDT | Severe Thunderstorm Warning | LMK | Hardin | 17 min |
| Apr 13, 2:57 PM CDT | Severe Thunderstorm Warning | LMK | Bullitt, Jefferson, Shelby, Spencer | 33 min |
| Apr 13, 2:59 PM CDT | Severe Thunderstorm Warning | LMK | Jefferson | 17 min |
| Apr 13, 3:07 PM CDT | Severe Thunderstorm Warning | LMK | Henry, Oldham | 23 min |
| Apr 13, 3:26 PM CDT | Severe Thunderstorm Warning | LMK | Shelby, Spencer | 34 min |
| Apr 13, 3:29 PM CDT | Tornado Warning | LMK | Henry | 31 min |
| Apr 13, 3:51 PM CDT | Severe Thunderstorm Warning | LMK | Anderson, Franklin, Henry, Shelby, Spencer | 24 min |
| Apr 13, 4:02 PM CDT | Severe Thunderstorm Warning | LMK | Henry | 18 min |
| Apr 13, 4:12 PM CDT | Severe Thunderstorm Warning | LMK | Anderson, Fayette, Franklin, Henry, Scott, Woodford | 33 min |
| Apr 13, 1:43 PM CDT | Severe Thunderstorm Warning | LMK | Orange, Washington | 32 min |
| Apr 13, 2:03 PM CDT | Tornado Warning | LMK | Orange | 27 min |
| Apr 13, 2:39 PM CDT | Tornado Warning | LMK | Washington | 21 min |
| Apr 13, 2:42 PM CDT | Severe Thunderstorm Warning | LMK | Crawford, Orange | 48 min |
| Apr 13, 3:11 PM CDT | Severe Thunderstorm Warning | LMK | Crawford, Harrison, Washington | 49 min |
Nearby
Severe Thunderstorm Warnings in Kentucky, 2009Severe Thunderstorm Warnings in Indiana, 2009Every 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; radar from the NEXRAD Level II archive.