Alert archive / Kentucky / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 98, NWS Louisville, KY
NWS Louisville, KY issued this severe thunderstorm warning at Apr 10, 2009, 1:16 PM EDT for Boyle County, Garrard County, Mercer County, Kentucky. It was in force for 29 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 10, 2009, 1:16 PM EDT (17:16 UTC)
- Expired
- Apr 10, 2009, 1:45 PM EDT
- In force
- 29 min
- Issued by
- NWS Louisville, KY
- Area
- Storm-based polygon
Counties Boyle County, KY, Garrard County, KY, Mercer County, KY
The radar
The Louisville radar (KLVX), 109 km from the middle of the area, began a volume at 17:18 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 10, 9:53 AM EDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 5.3 hours before the alert went out and 211 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
- 1278 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 465 m²/s²
- 0-3 km storm-relative helicity
- 808 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 10, 12:51 PM EDT, 25 minutes earlier.
Area forecast discussion, Apr 10, 12:51 PM EDT, 25 minutes before
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</html>Hazardous weather outlook, Apr 10, 10:31 AM EDT, 2 hours 45 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LOUISVILLE KY 1031 AM EDT FRI APR 10 2009 INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067- 070>078-081-082-110930- 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- 1031 AM EDT (931 AM CDT) FRI APR 10 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL INDIANA AND CENTRAL KENTUCKY. .DAY ONE...THIS AFTERNOON AND TONIGHT. AS A COLD FRONT APPROACHES FROM THE WEST...SHOWERS AND THUNDERSTORMS WILL DEVELOP ALONG THE FRONT AND PUSH INTO SOUTH CENTRAL KENTUCKY BY LATE MORNING AND EARLY AFTERNOON. SEVERE THUNDERSTORMS ARE EXPECTED WITH THE MAIN WEATHER THREATS BEING DAMAGING WINDS...DANGEROUS CLOUD TO GROUND LIGHTNING...LARGE HAIL AND ISOLATED TORNADOES. AREAS MAINLY SOUTH OF A LINE FROM MORGANTOWN IN BUTLER COUNTY TO MUNFORDVILLE IN HART COUNTY TO RUSSELL SPRINGS IN RUSSELL COUNTY WILL HAVE THE GREATEST RISK OF SEEING SEVERE WEATHER. THE TIME PERIOD FOR THIS SEVERE WEATHER WILL BE BETWEEN 1000 AM CDT TO 400 PM CDT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. ANOTHER STORM SYSTEM WILL BRING A CHANCE OF THUNDERSTORMS LATE SUNDAY NIGHT AND MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE REQUIRED THIS AFTERNOON ACROSS SOUTHERN KENTUCKY. SPOTTERS AND EMERGENCY MANAGERS SHOULD MONITOR THE WEATHER THIS AFTERNOON AND REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN LOUISVILLE AS SOON AS POSSIBLE. STAY TUNED TO NOAA WEATHER RADIO OR WEATHER.GOV/LOUISVILLE FOR THE LATEST UPDATES. MJ
In the hours before
Local storm report, Apr 10, 12:32 PM EDT, 44 minutes before
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</html>Local storm report, Apr 10, 12:43 PM EDT, 33 minutes before
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</html>Local storm report, Apr 10, 12:48 PM EDT, 28 minutes before
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</html>Special weather statement, Apr 10, 12:50 PM EDT, 26 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LOUISVILLE KY 1250 PM EDT FRI APR 10 2009 KYZ023-026-101715- HANCOCK-OHIO- 1150 AM CDT FRI APR 10 2009 ...STRONG STORM WILL MOVE ACROSS WESTERN OHIO AND SOUTHERN PERRY COUNTIES... AT 1148 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 6 MILES NORTH OF HARTFORD...OR 19 MILES SOUTHEAST OF OWENSBORO...AND MOVING NORTHEAST AT 40 MPH. HAIL TO THE SIZE OF NICKLES AND HEAVY RAIN ARE EXPECTED WITH THIS STORM. IF YOU ARE IN THE PATH OF THESE STORMS...SEEK SHELTER INDOORS AND STAY AWAY FROM WINDOWS. STAY TUNED TO NOAA ALL HAZARDS RADIO... WEATHER.GOV/LOUISVILLE ON THE INTERNET...OR LOCAL MEDIA FOR LATER UPDATES AND POSSIBLE WARNINGS. LS
Special weather statement, Apr 10, 1:02 PM EDT, 14 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LOUISVILLE KY 102 PM EDT FRI APR 10 2009 KYZ047-055-066-067-101730- BOYLE-CASEY-LINCOLN-MERCER- 102 PM EDT FRI APR 10 2009 ...THUNDERSTORMS PRODUCING PEA TO DIME SIZE HAIL AND HEAVY RAIN... AT 1256 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING THUNDERSTORMS ALONG A LINE FROM 9 MILES EAST OF SPRINGFIELD TO 12 MILES SOUTHEAST OF LEBANON...AND MOVING NORTHEAST AT 40 MPH. OCCASIONAL LIGHTNING...VERY HEAVY RAINFALL...AND PEA TO NICKEL SIZE HAIL WILL OCCUR WITH THESE STORMS. THESE STORMS WILL BE... NEAR HARRODSBURG BY 120 PM EDT. NEAR DANVILLE BY 125 PM EDT. TWF
Local storm report, Apr 10, 1:13 PM EDT, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
113 PM EDT FRI APR 10 2009
..TIME.. ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE.. ....MAG.... ..COUNTY LOCATION.. ST.. ...SOURCE....
..REMARKS..
0110 PM HAIL BEDA 37.50N 86.95W
04/10/2009 E0.50 INCH OHIO KY EMERGENCY MNGR
HAIL IS COVERING THE GROUND
&&
EVENT NUMBER LMK0900372
RLThe office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 11:20 AM EDT | Severe Thunderstorm Warning | LMK | Breckinridge, Meade | 25 min |
| Apr 10, 11:42 AM EDT | Severe Thunderstorm Warning | LMK | Jefferson | 33 min |
| Apr 10, 11:46 AM EDT | Severe Thunderstorm Warning | LMK | Green, Hart, Larue, Taylor | 29 min |
| Apr 10, 12:26 PM EDT | Severe Thunderstorm Warning | LMK | Marion, Taylor | 34 min |
| Apr 10, 1:34 PM EDT | Severe Thunderstorm Warning | LMK | Ohio | 26 min |
| Apr 10, 1:48 PM EDT | Flash Flood Warning | LMK | Boyle, Garrard, Mercer | 117 min |
| Apr 10, 1:52 PM EDT | Severe Thunderstorm Warning | LMK | Boyle, Garrard, Jessamine, Mercer | 23 min |
| Apr 10, 2:03 PM EDT | Severe Thunderstorm Warning | LMK | Breckinridge, Meade | 27 min |
| Apr 10, 2:18 PM EDT | Severe Thunderstorm Warning | LMK | Fayette, Garrard, Jessamine, Madison, Mercer | 27 min |
| Apr 10, 2:20 PM EDT | Severe Thunderstorm Warning | LMK | Allen, Barren, Monroe | 25 min |
| Apr 10, 2:35 PM EDT | Tornado Warning | LMK | Butler, Ohio | 25 min |
| Apr 10, 2:59 PM EDT | Tornado Warning | LMK | Butler, Ohio | 21 min |
| Apr 10, 3:09 PM EDT | Severe Thunderstorm Warning | LMK | Clark, Madison | 36 min |
| Apr 10, 3:15 PM EDT | Tornado Warning | LMK | Clark, Madison | 30 min |
| Apr 10, 3:23 PM EDT | Severe Thunderstorm Warning | LMK | Garrard, Jessamine | 22 min |
| Apr 10, 3:25 PM EDT | Tornado Warning | LMK | Garrard, Lincoln, Madison | 25 min |
| Apr 10, 3:47 PM EDT | Severe Thunderstorm Warning | LMK | Grayson, Hardin | 28 min |
| Apr 10, 4:37 PM EDT | Areal Flood Advisory | LMK | Boyle, Casey, Clark, Fayette, Garrard, Jessamine and 6 more | 83 min |
| Apr 10, 2:55 PM EDT | Severe Thunderstorm Warning | LMK | Clark | 35 min |
| Apr 10, 6:43 PM EDT | Areal Flood Advisory | LMK | Dubois, Orange | 2 hr |
Nearby
Severe Thunderstorm Warnings in Kentucky, 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.