Alert archive / Indiana / Tornado Watches in 2025

Tornado Watch 434

June 18, 20256 counties in Illinois; 68 counties in Indiana; 4 counties in Michigan

The Storm Prediction Center issued this tornado watch at Jun 18, 2025, 12:01 PM CDT for 6 counties in Illinois; 68 counties in Indiana; 4 counties in Michigan. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: Jun 18, 2025, 12:01 PM CDT (17:01 UTC)
Expired: Jun 18, 2025, 7:00 PM CDT
In force: 7 hr
Issued by: the Storm Prediction Center
Largest hail expected: 1.5 in
Strongest gust expected: 65 kt

All 78 counties

Ford County, IL, Grundy County, IL, Iroquois County, IL, Kankakee County, IL, Livingston County, IL, Will County, IL, Adams County, IN, Allen County, IN, Bartholomew County, IN, Benton County, IN, Blackford County, IN, Boone County, IN, Brown County, IN, Carroll County, IN, Cass County, IN, Clay County, IN, Clinton County, IN, Daviess County, IN, Decatur County, IN, DeKalb County, IN, Delaware County, IN, Elkhart County, IN, Fountain County, IN, Fulton County, IN, Grant County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Huntington County, IN, Jackson County, IN, Jasper County, IN, Jay County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Kosciusko County, IN, LaGrange County, IN, Lake County, IN, LaPorte County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Marshall County, IN, Martin County, IN, Miami County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Newton County, IN, Noble County, IN, Owen County, IN, Parke County, IN, Porter County, IN, Pulaski County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Saint Joseph County, IN, Shelby County, IN, Starke County, IN, Steuben County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Vigo County, IN, Wabash County, IN, Warren County, IN, Wells County, IN, White County, IN, Whitley County, IN, Berrien County, MI, Branch County, MI, Cass County, MI, Saint Joseph County, MI

The radar

The Northern Indiana radar (KIWX), 89 km from the middle of the area, began a volume at 17:02 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: 70%
One or more EF2 to EF5 tornadoes: 30%
Ten or more severe wind reports: 70%
One or more gusts of 65 knots or more: 30%
Ten or more severe hail reports: 40%
One or more hailstones of 2 inches or more: 20%
Six or more combined severe hail and wind reports: 90%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Jun 18, 1:06 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois	54 min
Jun 18, 1:19 PM CDT	Severe Thunderstorm Warning	IND	Fountain, Montgomery, Parke, Vermillion, Warren	41 min
Jun 18, 1:31 PM CDT	Severe Thunderstorm Warning	IND	Parke, Vermillion, Vigo	59 min
Jun 18, 1:31 PM CDT	Severe Thunderstorm Warning Considerable damage threat	IWX	Cass, LaPorte, Pulaski, Starke, White	59 min
Jun 18, 1:36 PM CDT	Tornado Warning	IND	Fountain, Parke, Vermillion	39 min
Jun 18, 1:36 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LOT	Benton, Jasper, Newton	54 min
Jun 18, 1:45 PM CDT	Flash Flood Warning	LOT	Iroquois, Kankakee	2 hr
Jun 18, 1:54 PM CDT	Severe Thunderstorm Warning	IND	Carroll, Clinton, Fountain, Montgomery, Parke, Tippecanoe and 2 more	51 min
Jun 18, 1:57 PM CDT	Severe Thunderstorm Warning	LOT	Kankakee	63 min
Jun 18, 2:00 PM CDT	Severe Thunderstorm Warning	IND	Knox, Sullivan, Vigo	45 min
Jun 18, 2:07 PM CDT	Severe Thunderstorm Warning	IND	Knox	38 min
Jun 18, 2:07 PM CDT	Tornado Warning	IND	Carroll, Tippecanoe	38 min
Jun 18, 2:11 PM CDT	Tornado Warning	IND	Clay, Parke, Vermillion, Vigo	24 min
Jun 18, 2:23 PM CDT	Severe Thunderstorm Warning Considerable damage threat	IND	Clay, Montgomery, Owen, Parke, Putnam, Vermillion and 1 more	52 min
Jun 18, 2:26 PM CDT	Severe Thunderstorm Warning Considerable damage threat	IND	Clay, Daviess, Greene, Knox, Owen, Sullivan and 1 more	49 min
Jun 18, 2:30 PM CDT	Severe Thunderstorm Warning Considerable damage threat	IWX	Cass, Fulton, LaPorte, Marshall, Pulaski, Saint Joseph and 2 more	45 min
Jun 18, 2:43 PM CDT	Severe Thunderstorm Warning	IND	Boone, Carroll, Clinton, Fountain, Howard, Montgomery and 3 more	47 min
Jun 18, 2:45 PM CDT	Tornado Warning	IWX	Cass, Fulton	21 min
Jun 18, 2:52 PM CDT	Severe Thunderstorm Warning	IWX	LaPorte, Saint Joseph	38 min
Jun 18, 2:53 PM CDT	Severe Thunderstorm Warning Considerable damage threat	IND	Boone, Brown, Hendricks, Marion, Monroe, Montgomery and 3 more	52 min
Jun 18, 2:59 PM CDT	Severe Thunderstorm Warning Considerable damage threat	IND	Brown, Daviess, Greene, Lawrence, Martin, Monroe and 1 more	46 min
Jun 18, 3:01 PM CDT	Severe Thunderstorm Warning Considerable damage threat	IWX	Cass, Fulton, Kosciusko, Marshall, Miami, Wabash	44 min
Jun 18, 3:05 PM CDT	Severe Thunderstorm Warning Destructive damage threat	IND	Brown, Greene, Monroe, Morgan, Owen	40 min
Jun 18, 3:19 PM CDT	Severe Thunderstorm Warning Destructive damage threat	IND	Hamilton, Hancock, Hendricks, Marion, Morgan	41 min
Jun 18, 3:21 PM CDT	Tornado Warning	IND	Boone, Hendricks, Marion	24 min
Jun 18, 3:22 PM CDT	Severe Thunderstorm Warning Considerable damage threat	IND	Boone, Clinton, Hamilton, Hancock, Hendricks, Howard and 4 more	38 min
Jun 18, 3:22 PM CDT	Severe Thunderstorm Warning	IWX	Cass, Miami, Wabash	38 min
Jun 18, 3:26 PM CDT	Severe Thunderstorm Warning Considerable damage threat	IWX	Elkhart, Kosciusko, LaGrange, Noble, Whitley	34 min
Jun 18, 3:29 PM CDT	Tornado Warning	IWX	Elkhart, Kosciusko	17 min
Jun 18, 3:32 PM CDT	Severe Thunderstorm Warning Considerable damage threat	IND	Bartholomew, Brown, Hancock, Johnson, Marion, Monroe and 2 more	43 min
Jun 18, 3:43 PM CDT	Severe Thunderstorm Warning	IND	Bartholomew, Brown, Jackson, Lawrence, Monroe	47 min
Jun 18, 3:43 PM CDT	Severe Thunderstorm Warning	IWX	Kosciusko, Whitley	32 min
Jun 18, 3:55 PM CDT	Severe Thunderstorm Warning	IWX	Grant	20 min
Jun 18, 3:58 PM CDT	Severe Thunderstorm Warning Considerable damage threat	IND	Delaware, Hamilton, Hancock, Henry, Howard, Madison and 3 more	47 min
Jun 18, 4:01 PM CDT	Severe Thunderstorm Warning	IWX	LaGrange, Noble, Steuben	29 min
Jun 18, 4:08 PM CDT	Severe Thunderstorm Warning	IWX	Allen, Noble, Whitley	37 min
Jun 18, 4:13 PM CDT	Severe Thunderstorm Warning Considerable damage threat	IND	Bartholomew, Brown	32 min
Jun 18, 4:14 PM CDT	Severe Thunderstorm Warning	IND	Bartholomew, Brown, Decatur, Hancock, Henry, Johnson and 2 more	46 min
Jun 18, 4:23 PM CDT	Severe Thunderstorm Warning	IND	Delaware, Henry, Randolph	37 min
Jun 18, 4:25 PM CDT	Severe Thunderstorm Warning	IND	Bartholomew, Brown, Decatur, Jackson, Jennings	50 min
Jun 18, 4:25 PM CDT	Severe Thunderstorm Warning	IWX	LaGrange, Steuben	50 min
Jun 18, 4:28 PM CDT	Tornado Warning	IWX	Branch	32 min
Jun 18, 4:31 PM CDT	Severe Thunderstorm Warning	IWX	Huntington, Wells	29 min
Jun 18, 4:42 PM CDT	Severe Thunderstorm Warning	IWX	Allen, DeKalb	33 min
Jun 18, 4:52 PM CDT	Severe Thunderstorm Warning	IWX	Adams, Allen, Jay, Wells	38 min
Jun 18, 4:59 PM CDT	Severe Thunderstorm Warning	IND	Randolph	16 min
Jun 18, 5:00 PM CDT	Severe Thunderstorm Warning	IND	Decatur, Rush	15 min
Jun 18, 5:05 PM CDT	Severe Thunderstorm Warning	IWX	DeKalb, Steuben	40 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 12:00Z, 5.0 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: 550 J/kg
Mixed-layer CIN: -132 J/kg
Mixed-layer LCL: 960 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 124 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 18, 7:59 AM CDT	Mesoscale Discussion	SPC	Alexander, Bond, Christian, Clay, Clinton, Coles and 29 more	2 hr
Jun 18, 9:46 AM CDT	Tornado Watch	SPC	Adams, Bond, Brown, Bureau, Calhoun, Cass and 62 more	6 hr
Jun 18, 10:57 AM CDT	Mesoscale Discussion	SPC	Champaign, Christian, Clark, Clay, Coles, Crawford and 25 more	2 hr
Jun 18, 12:44 PM CDT	Mesoscale Discussion	SPC	Champaign, Christian, Clark, Clay, Coles, Crawford and 24 more	2 hr
Jun 18, 1:44 PM CDT	Mesoscale Discussion	SPC	Gallatin, Hardin, Johnson, Massac, Pope, Saline	91 min
Jun 18, 2:07 PM CDT	Tornado Watch	SPC	Alexander, Hardin, Johnson, Massac, Pope, Pulaski	6 hr
Jun 18, 2:38 PM CDT	Mesoscale Discussion	SPC	Adams, Allen, Blackford, Carroll, Cass, DeKalb and 21 more	2 hr
Jun 18, 3:08 PM CDT	Mesoscale Discussion	SPC	Bartholomew, Boone, Brown, Clark, Crawford, Daviess and 40 more	97 min
Jun 18, 3:51 PM CDT	Severe Thunderstorm Watch	SPC	Dearborn, Fayette, Franklin, Ohio, Ripley, Switzerland and 2 more	6 hr
Jun 18, 5:24 PM CDT	Mesoscale Discussion	SPC	Dearborn, Ohio, Switzerland, Union	96 min
Jun 18, 5:58 PM CDT	Mesoscale Discussion	SPC	Adair, Allen, Anderson, Barren, Bath, Bourbon and 50 more	92 min
Jun 18, 6:46 PM CDT	Severe Thunderstorm Watch	SPC	Adair, Allen, Anderson, Barren, Bath, Bourbon and 56 more	5 hr
Jun 18, 6:48 PM CDT	Mesoscale Discussion	SPC	Boyd, Greenup	57 min
Jun 18, 3:09 PM CDT	Severe Thunderstorm Watch	SPC	Allegan, Barry, Calhoun, Clinton, Eaton, Genesee and 15 more	6 hr

Nearby

Tornado Watches in Indiana, 2025 Tornado Watches in Illinois, 2025 Tornado Watches in Michigan, 2025 Every 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.