Alert archive / Kentucky / Tornado Watches in 2025

Tornado Watch 301

May 20, 202513 counties in Illinois; 10 counties in Indiana; 17 counties in Kentucky

The Storm Prediction Center issued this tornado watch at May 20, 2025, 2:15 AM CDT for 13 counties in Illinois; 10 counties in Indiana; 17 counties in Kentucky. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
May 20, 2025, 2:15 AM CDT (07:15 UTC)
Expired
May 20, 2025, 5:58 AM CDT
In force
4 hr
Issued by
the Storm Prediction Center
Largest hail expected
1 in
Strongest gust expected
60 kt
All 40 counties

Clay County, IL, Edwards County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Lawrence County, IL, Massac County, IL, Pope County, IL, Richland County, IL, Saline County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Daviess County, IN, Dubois County, IN, Gibson County, IN, Knox County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Ballard County, KY, Caldwell County, KY, Carlisle County, KY, Crittenden County, KY, Daviess County, KY, Hancock County, KY, Henderson County, KY, Hopkins County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Muhlenberg County, KY, Ohio County, KY, Union County, KY, Webster County, KY

The radar

The Evansville,IN radar (KVWX), 30 km from the middle of the area, began a volume at 07:18 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
30%
One or more EF2 to EF5 tornadoes
10%
Ten or more severe wind reports
50%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
10%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 20, 2:26 AM CDTSevere Thunderstorm WarningPAHGibson, Posey, Vanderburgh, Warrick18 min
May 20, 3:07 AM CDTSevere Thunderstorm WarningPAHCarlisle, Graves, Hickman, McCracken, Marshall30 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

Lincoln, IL (KILX), launched 00:00Z, 7.3 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.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2025-05-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2025-05-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1853 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
322 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 19, 7:36 PM CDTMesoscale DiscussionSPCCalhoun, Jersey, Monroe, Randolph, Saint Clair2 hr
May 19, 8:26 PM CDTTornado WatchSPCAlexander, Bond, Calhoun, Clinton, Fayette, Franklin and 17 more7 hr
May 19, 10:42 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clinton, Jackson, Jersey, Madison and 5 more2 hr
May 20, 1:07 AM CDTMesoscale DiscussionSPCAlexander, Bond, Clay, Clinton, Crawford, Edwards and 27 more83 min
May 20, 1:09 PM CDTTornado WatchSPCAlexander, Johnson, Massac, Pope, Pulaski, Union8 hr
May 20, 1:42 PM CDTTornado WatchSPCBureau, Cass, Champaign, Christian, Clark, Coles and 31 more6 hr
May 20, 1:44 PM CDTMesoscale DiscussionSPCChampaign, Christian, Clark, Coles, Crawford, Cumberland and 15 more106 min
May 20, 2:36 PM CDTTornado WatchSPCHardin8 hr
May 20, 5:51 PM CDTMesoscale DiscussionSPCVermilion54 min
May 19, 7:02 PM CDTMesoscale DiscussionSPCLogan, Simpson, Todd88 min
May 20, 10:19 AM CDTMesoscale DiscussionSPCAdair, Allen, Anderson, Barren, Bath, Bell and 46 more2 hr
May 20, 12:10 PM CDTTornado WatchSPCBath, Bell, Bourbon, Boyd, Breathitt, Carter and 39 more5 hr
May 20, 1:48 PM CDTMesoscale DiscussionSPCAllen, Barren, Butler, Christian, Edmonson, Logan and 5 more117 min
May 20, 2:42 PM CDTMesoscale DiscussionSPCFloyd, Harlan, Johnson, Knott, Lawrence, Letcher and 3 more2 hr
May 20, 3:33 PM CDTMesoscale DiscussionSPCBallard, Caldwell, Calloway, Carlisle, Christian, Fulton and 7 more117 min
May 20, 5:13 PM CDTMesoscale DiscussionSPCBell, Boyle, Breathitt, Clark, Clay, Estill and 25 more62 min
May 20, 6:27 PM CDTTornado WatchSPCBell, Breathitt, Clay, Estill, Harlan, Jackson and 15 more6 hr

Nearby

Tornado Watches in Kentucky, 2025Tornado Watches in Illinois, 2025Tornado Watches in Indiana, 2025Every tornado watch in 2025

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.