Alert archive / Kentucky / Severe Thunderstorm Watches in 2007
Severe Thunderstorm Watch 557
The Storm Prediction Center issued this severe thunderstorm watch at Jul 27, 2007, 2:33 PM EDT for 8 counties in Indiana; 106 counties in Kentucky; 13 counties in Ohio. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 27, 2007, 2:33 PM EDT (18:33 UTC)
- Expired
- Jul 27, 2007, 9:28 PM EDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 127 counties
Clark County, IN, Crawford County, IN, Floyd County, IN, Harrison County, IN, Perry County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bath County, KY, Bell County, KY, Boone County, KY, Bourbon County, KY, Boyd County, KY, Boyle County, KY, Bracken County, KY, Breathitt County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Campbell County, KY, Carroll County, KY, Carter County, KY, Casey County, KY, Christian County, KY, Clark County, KY, Clay County, KY, Clinton County, KY, Cumberland County, KY, Daviess County, KY, Edmonson County, KY, Elliott County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Floyd County, KY, Franklin County, KY, Gallatin County, KY, Garrard County, KY, Grant County, KY, Grayson County, KY, Green County, KY, Greenup County, KY, Hancock County, KY, Hardin County, KY, Harlan County, KY, Harrison County, KY, Hart County, KY, Henderson County, KY, Henry County, KY, Hopkins County, KY, Jackson County, KY, Jefferson County, KY, Jessamine County, KY, Johnson County, KY, Kenton County, KY, Knott County, KY, Knox County, KY, Larue County, KY, Laurel County, KY, Lawrence County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lewis County, KY, Lincoln County, KY, Logan County, KY, Madison County, KY, Magoffin County, KY, Marion County, KY, Martin County, KY, Mason County, KY, McCreary County, KY, McLean County, KY, Meade County, KY, Menifee County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Montgomery County, KY, Morgan County, KY, Muhlenberg County, KY, Nelson County, KY, Nicholas County, KY, Ohio County, KY, Oldham County, KY, Owen County, KY, Owsley County, KY, Pendleton County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Pulaski County, KY, Robertson County, KY, Rockcastle County, KY, Rowan County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Todd County, KY, Trimble County, KY, Warren County, KY, Washington County, KY, Wayne County, KY, Webster County, KY, Whitley County, KY, Wolfe County, KY, Woodford County, KY, Adams County, OH, Brown County, OH, Clermont County, OH, Clinton County, OH, Gallia County, OH, Highland County, OH, Jackson County, OH, Lawrence County, OH, Pike County, OH, Ross County, OH, Scioto County, OH, Vinton County, OH, Warren County, OH
The radar
The Louisville radar (KLVX), 119 km from the middle of the area, began a volume at 18:36 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 5%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 40%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 2:41 PM EDT | Severe Thunderstorm Warning | LMK | Madison | 38 min |
| Jul 27, 3:39 PM EDT | Severe Thunderstorm Warning | ILN | Scioto | 66 min |
| Jul 27, 4:05 PM EDT | Severe Thunderstorm Warning | LMK | Taylor | 40 min |
| Jul 27, 4:15 PM EDT | Severe Thunderstorm Warning | RLX | Lawrence | 60 min |
| Jul 27, 4:22 PM EDT | Severe Thunderstorm Warning | JKL | Estill | 28 min |
| Jul 27, 4:24 PM EDT | Severe Thunderstorm Warning | LMK | Jessamine | 36 min |
| Jul 27, 4:31 PM EDT | Severe Thunderstorm Warning | RLX | Gallia | 59 min |
| Jul 27, 4:45 PM EDT | Flash Flood Warning | LMK | Taylor | 4 hr |
| Jul 27, 4:47 PM EDT | Severe Thunderstorm Warning | RLX | Vinton | 28 min |
| Jul 27, 4:59 PM EDT | Severe Thunderstorm Warning | LMK | Clark | 46 min |
| Jul 27, 7:11 PM EDT | Severe Thunderstorm Warning | LMK | Monroe | 34 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.6 hours before the alert went out and 158 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
- 1056 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 1036 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 133 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.5
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 1:46 PM EDT | Mesoscale Discussion | SPC | Clark, Crawford, Dearborn, Decatur, Dubois, Floyd and 19 more | 89 min |
| Jul 27, 3:34 PM EDT | Mesoscale Discussion | SPC | Posey | 56 min |
| Jul 27, 6:25 PM EDT | Mesoscale Discussion | SPC | Ballard, Crittenden, Livingston, McCracken | 95 min |
Nearby
Severe Thunderstorm Watches in Kentucky, 2007Severe Thunderstorm Watches in Ohio, 2007Severe Thunderstorm Watches in Indiana, 2007Every severe thunderstorm watch in 2007
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.