Alert archive / Kentucky / Severe Thunderstorm Watches in 2019
Severe Thunderstorm Watch 604
The Storm Prediction Center issued this severe thunderstorm watch at Aug 20, 2019, 1:53 PM CDT for 4 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 20, 2019, 1:53 PM CDT (18:53 UTC)
- Expired
- Aug 20, 2019, 7:20 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 113 counties
Alexander County, IL, Edwards County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Jefferson County, IL, Johnson County, IL, Massac County, IL, Perry County, IL, Pope County, IL, Pulaski County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Clark County, IN, Crawford County, IN, Dubois County, IN, Floyd County, IN, Gibson County, IN, Harrison County, IN, Jefferson County, IN, Orange County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Scott County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Adair County, KY, Allen County, KY, Anderson County, KY, Ballard County, KY, Barren County, KY, Bourbon County, KY, Boyle County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Caldwell County, KY, Carlisle County, KY, Casey County, KY, Clark County, KY, Clinton County, KY, Crittenden County, KY, Cumberland County, KY, Daviess County, KY, Edmonson County, KY, Fayette County, KY, Franklin County, KY, Fulton County, KY, Garrard 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, Jessamine County, KY, Larue County, KY, Lincoln County, KY, Livingston County, KY, Logan County, KY, Lyon County, KY, Madison County, KY, Marion County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Meade County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Muhlenberg County, KY, Nelson County, KY, Nicholas County, KY, Ohio County, KY, Oldham County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Trimble County, KY, Union County, KY, Warren County, KY, Washington County, KY, Webster County, KY, Woodford County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Mississippi County, MO, New Madrid County, MO, Perry County, MO, Ripley County, MO, Scott County, MO, Stoddard County, MO, Wayne County, MO
The radar
The Paducah radar (KPAH), 84 km from the middle of the area, began a volume at 18:56 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
- 50%
- 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
- 70%
Warnings issued inside it
20 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 2:20 PM CDT | Severe Thunderstorm Warning | LMK | Orange | 25 min |
| Aug 20, 2:22 PM CDT | Severe Thunderstorm Warning | PAH | Jackson | 23 min |
| Aug 20, 2:22 PM CDT | Severe Thunderstorm Warning | LMK | Dubois | 38 min |
| Aug 20, 2:30 PM CDT | Severe Thunderstorm Warning | LMK | Crawford, Dubois, Orange, Perry | 45 min |
| Aug 20, 2:34 PM CDT | Severe Thunderstorm Warning | PAH | Spencer, Warrick | 26 min |
| Aug 20, 2:45 PM CDT | Severe Thunderstorm Warning | PAH | Bollinger, Cape Girardeau, Perry | 45 min |
| Aug 20, 2:52 PM CDT | Severe Thunderstorm Warning | LMK | Crawford, Harrison, Perry | 38 min |
| Aug 20, 3:11 PM CDT | Severe Thunderstorm Warning | PAH | Alexander | 49 min |
| Aug 20, 3:33 PM CDT | Severe Thunderstorm Warning | LMK | Anderson, Franklin, Shelby, Spencer | 27 min |
| Aug 20, 3:36 PM CDT | Severe Thunderstorm Warning | PAH | Massac, Pope | 24 min |
| Aug 20, 3:39 PM CDT | Severe Thunderstorm Warning | LMK | Breckinridge, Grayson, Hardin, Meade | 36 min |
| Aug 20, 3:44 PM CDT | Severe Thunderstorm Warning | LMK | Butler, Grayson, Ohio | 31 min |
| Aug 20, 3:47 PM CDT | Severe Thunderstorm Warning | PAH | Alexander, Pulaski | 28 min |
| Aug 20, 4:05 PM CDT | Severe Thunderstorm Warning | LMK | Bullitt, Grayson, Hardin, Nelson | 25 min |
| Aug 20, 4:15 PM CDT | Severe Thunderstorm Warning | LMK | Butler, Edmonson, Logan, Ohio, Warren | 45 min |
| Aug 20, 4:50 PM CDT | Severe Thunderstorm Warning | LMK | Simpson, Warren | 25 min |
| Aug 20, 4:58 PM CDT | Severe Thunderstorm Warning | LMK | Green, Hart | 32 min |
| Aug 20, 5:06 PM CDT | Severe Thunderstorm Warning | LMK | Green, Larue, Marion, Nelson, Taylor | 24 min |
| Aug 20, 5:09 PM CDT | Severe Thunderstorm Warning | LMK | Allen, Simpson, Warren | 12 min |
| Aug 20, 5:30 PM CDT | Severe Thunderstorm Warning | LMK | Barren, Metcalfe | 30 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, 6.9 hours before the alert went out and 251 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
- 1377 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 1142 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 7:07 PM CDT | Mesoscale Discussion | SPC | Bond, Clark, Clay, Clinton, Coles, Crawford and 21 more | 83 min |
| Aug 20, 5:43 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Carroll, Cass, DeKalb and 27 more | 92 min |
| Aug 20, 6:18 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Bureau, Calhoun, Carroll and 69 more | 11 hr |
| Aug 20, 9:04 AM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Bureau, Calhoun, Carroll and 78 more | 86 min |
| Aug 20, 12:12 PM CDT | Mesoscale Discussion | SPC | Clark, Clay, Clinton, Crawford, Cumberland, Edgar and 17 more | 2 hr |
| Aug 20, 1:07 PM CDT | Severe Thunderstorm Watch | SPC | Bartholomew, Boone, Brown, Carroll, Clay, Clinton and 26 more | 3 hr |
| Aug 20, 2:35 PM CDT | Severe Thunderstorm Watch | SPC | Dearborn, Fayette, Franklin, Ohio, Ripley, Switzerland and 2 more | 2 hr |
| Aug 20, 2:29 PM CDT | Mesoscale Discussion | SPC | Bracken, Campbell, Kenton, Pendleton | 91 min |
| Aug 20, 5:32 PM CDT | Mesoscale Discussion | SPC | Adair, Allen, Barren, Bath, Bourbon, Boyle and 30 more | 118 min |
| Aug 20, 4:01 PM CDT | Mesoscale Discussion | SPC | Dunklin, Pemiscot | 89 min |
Nearby
Severe Thunderstorm Watches in Kentucky, 2019Severe Thunderstorm Watches in Illinois, 2019Severe Thunderstorm Watches in Indiana, 2019Every severe thunderstorm watch in 2019
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.