Alert archive / Kentucky / Severe Thunderstorm Watches in 2007

Severe Thunderstorm Watch 367

June 8, 20074 states

The Storm Prediction Center issued this severe thunderstorm watch at Jun 8, 2007, 8:45 AM CDT for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Jun 8, 2007, 8:45 AM CDT (13:45 UTC)
Expired: Jun 8, 2007, 3:00 PM CDT
In force: 6 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2 in
Strongest gust expected: 70 kt

All 128 counties

Gallatin County, IL, Hardin County, IL, Massac County, IL, Pope County, IL, Bartholomew County, IN, Brown County, IN, Clark County, IN, Crawford County, IN, Daviess County, IN, Dearborn County, IN, Decatur County, IN, Delaware County, IN, Dubois County, IN, Fayette County, IN, Floyd County, IN, Franklin County, IN, Gibson County, IN, Greene County, IN, Hancock County, IN, Harrison County, IN, Henry County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Monroe County, IN, Morgan County, IN, Ohio County, IN, Orange County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Randolph County, IN, Ripley County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Spencer County, IN, Switzerland County, IN, Union County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Wayne County, IN, Allen County, KY, Anderson County, KY, Ballard County, KY, Barren County, KY, Boone County, KY, Bracken County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Campbell County, KY, Carlisle County, KY, Carroll County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Edmonson County, KY, Franklin County, KY, Fulton County, KY, Gallatin County, KY, Grant County, KY, Graves County, KY, Grayson County, KY, Green County, KY, Hancock County, KY, Hardin County, KY, Harrison County, KY, Hart County, KY, Henderson County, KY, Henry County, KY, Hickman County, KY, Hopkins County, KY, Jefferson County, KY, Kenton County, KY, Larue County, KY, Livingston County, KY, Logan County, KY, Lyon County, KY, Marion County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Meade County, KY, Mercer County, KY, Metcalfe County, KY, Muhlenberg County, KY, Nelson County, KY, Ohio County, KY, Oldham County, KY, Owen County, KY, Pendleton County, KY, Scott County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Todd County, KY, Trigg County, KY, Trimble County, KY, Union County, KY, Warren County, KY, Washington County, KY, Webster County, KY, Woodford County, KY, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Darke County, OH, Fayette County, OH, Greene County, OH, Hamilton County, OH, Highland County, OH, Madison County, OH, Miami County, OH, Montgomery County, OH, Preble County, OH, Warren County, OH

The radar

The Louisville radar (KLVX), 63 km from the middle of the area, began a volume at 13:47 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: 20%
One or more EF2 to EF5 tornadoes: 5%
Ten or more severe wind reports: 70%
One or more gusts of 65 knots or more: 30%
Ten or more severe hail reports: 30%
One or more hailstones of 2 inches or more: 20%
Six or more combined severe hail and wind reports: 90%

Warnings issued inside it

13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jun 8, 8:50 AM CDT	Severe Thunderstorm Warning	PAH	Ballard, McCracken	25 min
Jun 8, 9:23 AM CDT	Severe Thunderstorm Warning	PAH	Massac, Pope	37 min
Jun 8, 9:37 AM CDT	Severe Thunderstorm Warning	PAH	Caldwell, Crittenden, Lyon	38 min
Jun 8, 9:39 AM CDT	Severe Thunderstorm Warning	PAH	Calloway, Graves, McCracken, Marshall	51 min
Jun 8, 9:59 AM CDT	Severe Thunderstorm Warning	PAH	Trigg	46 min
Jun 8, 10:19 AM CDT	Severe Thunderstorm Warning	PAH	Caldwell, Christian, Hopkins	41 min
Jun 8, 11:36 AM CDT	Severe Thunderstorm Warning	LMK	Logan, Simpson	24 min
Jun 8, 11:50 AM CDT	Severe Thunderstorm Warning	ILN	Boone, Kenton	40 min
Jun 8, 11:54 AM CDT	Severe Thunderstorm Warning	LMK	Warren	21 min
Jun 8, 12:00 PM CDT	Severe Thunderstorm Warning	ILN	Campbell	45 min
Jun 8, 12:03 PM CDT	Severe Thunderstorm Warning	LMK	Simpson	27 min
Jun 8, 12:29 PM CDT	Severe Thunderstorm Warning	LMK	Anderson, Mercer, Washington	46 min
Jun 8, 12:40 PM CDT	Severe Thunderstorm Warning	ILN	Brown, Clinton	31 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

Nashville Metro, TN (KBNA), launched 12:00Z, 1.8 hours before the alert went out and 209 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: 2466 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 715 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 46 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 7, 7:54 PM CDT	Mesoscale Discussion	SPC	Adams, Brown, Calhoun, Cass, Fulton, Greene and 9 more	2 hr
Jun 7, 8:31 PM CDT	Tornado Watch	SPC	Adams, Brown, Fulton, Knox, Peoria, Pike and 2 more	7 hr
Jun 7, 9:23 PM CDT	Mesoscale Discussion	SPC	Boone, Carroll, Jo Daviess, Lee, McHenry, Mercer and 5 more	97 min
Jun 7, 9:48 PM CDT	Mesoscale Discussion	SPC	Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 13 more	87 min
Jun 7, 10:14 PM CDT	Tornado Watch	SPC	Boone, Bureau, Carroll, Cass, Champaign, Christian and 50 more	7 hr
Jun 7, 11:12 PM CDT	Mesoscale Discussion	SPC	Calhoun, Greene, Jersey, Macoupin, Madison, Monroe and 3 more	93 min
Jun 7, 11:26 PM CDT	Tornado Watch	SPC	Bond, Calhoun, Clinton, Fayette, Greene, Jackson and 10 more	8 hr
Jun 8, 6:23 AM CDT	Mesoscale Discussion	SPC	Alexander, Johnson, Massac, Pope, Pulaski, Union and 1 more	67 min
Jun 8, 8:30 AM CDT	Mesoscale Discussion	SPC	Bartholomew, Brown, Clark, Crawford, Daviess, Dearborn and 22 more	90 min
Jun 8, 10:07 AM CDT	Mesoscale Discussion	SPC	Adams, Allen, DeKalb, Steuben	53 min
Jun 8, 10:43 AM CDT	Severe Thunderstorm Watch	SPC	Adams, Allen, Blackford, DeKalb, Huntington, Jay and 5 more	7 hr
Jun 8, 11:40 AM CDT	Mesoscale Discussion	SPC	Adams, Allen, Bartholomew, Blackford, Brown, Clark and 28 more	65 min
Jun 8, 11:02 AM CDT	Mesoscale Discussion	SPC	Adair, Bath, Bell, Bourbon, Boyd, Breathitt and 44 more	58 min
Jun 8, 11:37 AM CDT	Severe Thunderstorm Watch	SPC	Adair, Bath, Bell, Bourbon, Boyd, Boyle and 49 more	8 hr
Jun 8, 2:06 PM CDT	Mesoscale Discussion	SPC	Adair, Bath, Bell, Bourbon, Boyd, Boyle and 49 more	54 min

Nearby

Severe Thunderstorm Watches in Kentucky, 2007 Severe Thunderstorm Watches in Indiana, 2007 Severe Thunderstorm Watches in Ohio, 2007 Every 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.