Alert archive / Kentucky / Severe Thunderstorm Watches in 2026
Severe Thunderstorm Watch 577
The Storm Prediction Center issued this severe thunderstorm watch at Aug 12, 2026, 2:24 PM CDT for Edwards County, Wabash County, Illinois; 16 counties in Indiana; 33 counties in Kentucky. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 12, 2026, 2:24 PM CDT (19:24 UTC)
- Expired
- Aug 12, 2026, 7:13 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 65 kt
All 51 counties
Edwards County, IL, Wabash 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, Anderson County, KY, Boyle County, KY, Breckinridge County, KY, Bullitt County, KY, Casey County, KY, Daviess County, KY, Fayette County, KY, Franklin County, KY, Garrard County, KY, Grayson County, KY, Green County, KY, Hancock County, KY, Hardin County, KY, Hart County, KY, Henderson County, KY, Henry County, KY, Jefferson County, KY, Jessamine County, KY, Larue County, KY, Lincoln County, KY, Madison County, KY, Marion County, KY, Meade County, KY, Mercer County, KY, Nelson County, KY, Ohio County, KY, Oldham County, KY, Shelby County, KY, Spencer County, KY, Taylor County, KY, Trimble County, KY, Washington County, KY, Woodford County, KY
The radar
The Louisville radar (KLVX), 25 km from the middle of the area, began a volume at 19:23 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
- 2%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 30%
- 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
15 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 2:51 PM CDT | Severe Thunderstorm Warning | PAH | Pike | 39 min |
| Aug 12, 3:15 PM CDT | Tornado Warning | PAH | Pike | 30 min |
| Aug 12, 3:19 PM CDT | Severe Thunderstorm Warning | LMK | Dubois | 56 min |
| Aug 12, 3:30 PM CDT | Severe Thunderstorm Warning | PAH | Pike, Spencer, Warrick | 45 min |
| Aug 12, 4:06 PM CDT | Severe Thunderstorm Warning | PAH | Spencer | 39 min |
| Aug 12, 4:10 PM CDT | Severe Thunderstorm Warning | LMK | Perry | 50 min |
| Aug 12, 4:17 PM CDT | Severe Thunderstorm Warning | PAH | Vanderburgh, Warrick | 43 min |
| Aug 12, 4:22 PM CDT | Severe Thunderstorm Warning | LMK | Perry | 38 min |
| Aug 12, 4:41 PM CDT | Severe Thunderstorm Warning | PAH | Vanderburgh | 34 min |
| Aug 12, 4:50 PM CDT | Severe Thunderstorm Warning | LMK | Perry | 40 min |
| Aug 12, 5:00 PM CDT | Severe Thunderstorm Warning | LMK | Breckinridge, Hardin | 30 min |
| Aug 12, 5:21 PM CDT | Severe Thunderstorm Warning | LMK | Breckinridge, Grayson, Hancock, Ohio | 39 min |
| Aug 12, 5:26 PM CDT | Severe Thunderstorm Warning | PAH | Posey, Vanderburgh | 25 min |
| Aug 12, 5:27 PM CDT | Severe Thunderstorm Warning | LMK | Hardin, Meade | 33 min |
| Aug 12, 6:32 PM CDT | Severe Thunderstorm Warning | LMK | Garrard, Lincoln | 28 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, 7.4 hours before the alert went out and 226 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
- 589 J/kg
- Mixed-layer CIN
- -173 J/kg
- Mixed-layer LCL
- 925 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.4
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 8:04 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Cook, DeKalb, DuPage, Ford and 21 more | 2 hr |
| Aug 12, 6:41 AM CDT | Severe Thunderstorm Watch | SPC | Bureau, Champaign, Cook, DeKalb, DeWitt, DuPage and 31 more | 6 hr |
| Aug 12, 9:04 AM CDT | Mesoscale Discussion | SPC | Bureau, Champaign, DeWitt, Douglas, Edgar, Ford and 20 more | 116 min |
| Aug 12, 12:12 PM CDT | Mesoscale Discussion | SPC | Cass, Champaign, Christian, Clark, Coles, Cumberland and 25 more | 63 min |
| Aug 12, 4:33 PM CDT | Mesoscale Discussion | SPC | Alexander, Clinton, Franklin, Gallatin, Hamilton, Hardin and 17 more | 117 min |
| Aug 12, 10:35 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Bartholomew, Blackford, Boone, Brown, Carroll and 50 more | 5 hr |
| Aug 12, 12:52 PM CDT | Mesoscale Discussion | SPC | Bartholomew, Boone, Brown, Clark, Clay, Clinton and 39 more | 113 min |
| Aug 11, 7:12 PM CDT | Mesoscale Discussion | SPC | Bell, Clinton, Knox, McCreary, Pulaski, Russell and 2 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Kentucky, 2026Severe Thunderstorm Watches in Indiana, 2026Severe Thunderstorm Watches in Illinois, 2026Every severe thunderstorm watch in 2026
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.