Alert archive / Indiana / Tornado Watches in 2007
Tornado Watch 724
The Storm Prediction Center issued this tornado watch at Oct 18, 2007, 3:23 PM CDT for 34 counties in Illinois; 68 counties in Indiana; 59 counties in Michigan. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 18, 2007, 3:23 PM CDT (20:23 UTC)
- Expired
- Oct 18, 2007, 11:00 PM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 80 kt
All 161 counties
Bond County, IL, Champaign County, IL, Christian County, IL, Clark County, IL, Clay County, IL, Clinton County, IL, Coles County, IL, Cook County, IL, Crawford County, IL, Cumberland County, IL, Douglas County, IL, DuPage County, IL, Edgar County, IL, Effingham County, IL, Fayette County, IL, Ford County, IL, Iroquois County, IL, Jasper County, IL, Kankakee County, IL, Lake County, IL, Lawrence County, IL, Macon County, IL, Marion County, IL, Monroe County, IL, Montgomery County, IL, Moultrie County, IL, Piatt County, IL, Randolph County, IL, Richland County, IL, Saint Clair County, IL, Shelby County, IL, Vermilion County, IL, Washington 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, Alcona County, MI, Allegan County, MI, Alpena County, MI, Antrim County, MI, Arenac County, MI, Barry County, MI, Bay County, MI, Benzie County, MI, Berrien County, MI, Branch County, MI, Calhoun County, MI, Cass County, MI, Charlevoix County, MI, Cheboygan County, MI, Clare County, MI, Clinton County, MI, Crawford County, MI, Eaton County, MI, Emmet County, MI, Genesee County, MI, Gladwin County, MI, Grand Traverse County, MI, Gratiot County, MI, Hillsdale County, MI, Huron County, MI, Ingham County, MI, Ionia County, MI, Iosco County, MI, Isabella County, MI, Jackson County, MI, Kalamazoo County, MI, Kalkaska County, MI, Kent County, MI, Lake County, MI, Leelanau County, MI, Livingston County, MI, Manistee County, MI, Mason County, MI, Mecosta County, MI, Midland County, MI, Missaukee County, MI, Montcalm County, MI, Montmorency County, MI, Muskegon County, MI, Newaygo County, MI, Oceana County, MI, Ogemaw County, MI, Osceola County, MI, Oscoda County, MI, Otsego County, MI, Ottawa County, MI, Presque Isle County, MI, Roscommon County, MI, Saginaw County, MI, Saint Joseph County, MI, Shiawassee County, MI, Tuscola County, MI, Van Buren County, MI, Wexford County, MI
The radar
The Grand Rapids radar (KGRR), 37 km from the middle of the area, began a volume at 20:25 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
- 40%
- Ten or more severe wind reports
- 95%
- One or more gusts of 65 knots or more
- 90%
- Ten or more severe hail reports
- 50%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
136 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 18, 3:37 PM CDT | Severe Thunderstorm Warning | APX | Antrim, Charlevoix, Otsego | 37 min |
| Oct 18, 3:43 PM CDT | Severe Thunderstorm Warning | APX | Crawford, Roscommon | 32 min |
| Oct 18, 3:59 PM CDT | Severe Thunderstorm Warning | APX | Cheboygan | 61 min |
| Oct 18, 4:23 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Madison, Saint Clair | 37 min |
| Oct 18, 4:33 PM CDT | Tornado Warning | APX | Cheboygan, Presque Isle | 38 min |
| Oct 18, 4:45 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon, Moultrie, Shelby | 45 min |
| Oct 18, 4:45 PM CDT | Severe Thunderstorm Warning | IND | Lawrence, Martin | 45 min |
| Oct 18, 4:49 PM CDT | Severe Thunderstorm Warning | ILX | Christian, DeWitt, Macon, Piatt | 41 min |
| Oct 18, 4:55 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette, Madison, Montgomery | 50 min |
| Oct 18, 5:05 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette, Madison, Marion, Saint Clair | 40 min |
| Oct 18, 5:06 PM CDT | Severe Thunderstorm Warning | LSX | Randolph, Washington | 24 min |
| Oct 18, 5:11 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 19 min |
| Oct 18, 5:13 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Will | 29 min |
| Oct 18, 5:14 PM CDT | Severe Thunderstorm Warning | IWX | Pulaski, White | 51 min |
| Oct 18, 5:19 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon | 41 min |
| Oct 18, 5:19 PM CDT | Severe Thunderstorm Warning | IND | Brown, Jackson, Monroe | 41 min |
| Oct 18, 5:22 PM CDT | Tornado Warning | LSX | Bond, Fayette | 38 min |
| Oct 18, 5:24 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Macon, Piatt | 35 min |
| Oct 18, 5:27 PM CDT | Severe Thunderstorm Warning | GRR | Kalamazoo | 18 min |
| Oct 18, 5:28 PM CDT | Tornado Warning | APX | Alpena, Montmorency, Presque Isle | 26 min |
| Oct 18, 5:31 PM CDT | Tornado Warning | LSX | Bond, Clinton, Fayette, Marion | 44 min |
| Oct 18, 5:33 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Douglas, Macon, Moultrie, Piatt, Shelby | 42 min |
| Oct 18, 5:35 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Grundy, Will | 55 min |
| Oct 18, 5:47 PM CDT | Tornado Warning | ILX | Champaign, Douglas, Macon, Moultrie, Piatt, Shelby | 43 min |
| Oct 18, 5:49 PM CDT | Tornado Warning | ILX | Coles, Cumberland, Effingham, Shelby | 41 min |
| Oct 18, 5:49 PM CDT | Severe Thunderstorm Warning | GRR | Barry | 41 min |
| Oct 18, 5:50 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, DeWitt, McLean, Piatt | 40 min |
| Oct 18, 5:51 PM CDT | Severe Thunderstorm Warning | IWX | Cass, Fulton, Kosciusko, Marshall, Pulaski, White | 54 min |
| Oct 18, 5:55 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 35 min |
| Oct 18, 5:55 PM CDT | Tornado Warning | GRR | Barry, Eaton, Ionia | 35 min |
| Oct 18, 5:56 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois, Livingston | 50 min |
| Oct 18, 5:57 PM CDT | Severe Thunderstorm Warning | IWX | LaPorte, Marshall, Saint Joseph, Starke | 40 min |
| Oct 18, 6:00 PM CDT | Tornado Warning | IWX | Cass, Fulton, Miami | 45 min |
| Oct 18, 6:05 PM CDT | Severe Thunderstorm Warning | APX | Leelanau | 40 min |
| Oct 18, 6:06 PM CDT | Severe Thunderstorm Warning | IWX | Elkhart, Kosciusko, LaGrange | 54 min |
| Oct 18, 6:14 PM CDT | Severe Thunderstorm Warning | GRR | Osceola | 31 min |
| Oct 18, 6:19 PM CDT | Severe Thunderstorm Warning | APX | Crawford, Kalkaska, Missaukee, Roscommon | 41 min |
| Oct 18, 6:20 PM CDT | Tornado Warning | ILX | Coles, Cumberland, Douglas, Moultrie | 40 min |
| Oct 18, 6:23 PM CDT | Severe Thunderstorm Warning | IWX | LaPorte, Saint Joseph | 67 min |
| Oct 18, 6:25 PM CDT | Severe Thunderstorm Warning | APX | Antrim, Charlevoix, Emmet | 65 min |
| Oct 18, 6:25 PM CDT | Tornado Warning | GRR | Barry, Clinton, Eaton, Ingham, Ionia | 35 min |
| Oct 18, 6:26 PM CDT | Tornado Warning | ILX | Champaign, Douglas, Vermilion | 34 min |
| Oct 18, 6:30 PM CDT | Severe Thunderstorm Warning | LOT | Kankakee | 29 min |
| Oct 18, 6:30 PM CDT | Severe Thunderstorm Warning | APX | Benzie, Grand Traverse, Leelanau, Manistee | 45 min |
| Oct 18, 6:38 PM CDT | Severe Thunderstorm Warning | APX | Antrim, Charlevoix, Kalkaska, Otsego | 52 min |
| Oct 18, 6:42 PM CDT | Tornado Warning | IWX | Fulton, Kosciusko | 48 min |
| Oct 18, 6:46 PM CDT | Severe Thunderstorm Warning | LOT | Jasper, Lake, Newton, Porter | 59 min |
| Oct 18, 6:46 PM CDT | Severe Thunderstorm Warning | APX | Cheboygan, Montmorency, Otsego, Presque Isle | 23 min |
| Oct 18, 6:47 PM CDT | Severe Thunderstorm Warning | IWX | Branch, Saint Joseph | 58 min |
| Oct 18, 6:48 PM CDT | Tornado Warning | DTX | Shiawassee | 53 min |
| Oct 18, 6:49 PM CDT | Severe Thunderstorm Warning | APX | Grand Traverse, Kalkaska, Manistee, Missaukee, Wexford | 56 min |
| Oct 18, 6:49 PM CDT | Tornado Warning | APX | Antrim, Kalkaska | 41 min |
| Oct 18, 6:55 PM CDT | Severe Thunderstorm Warning | GRR | Allegan, Ottawa | 50 min |
| Oct 18, 6:56 PM CDT | Severe Thunderstorm Warning | APX | Crawford, Oscoda, Roscommon | 30 min |
| Oct 18, 6:57 PM CDT | Tornado Warning | ILX | Coles, Douglas, Edgar, Vermilion | 48 min |
| Oct 18, 6:57 PM CDT | Tornado Warning | GRR | Clinton | 33 min |
| Oct 18, 6:58 PM CDT | Tornado Warning | ILX | Vermilion | 32 min |
| Oct 18, 7:01 PM CDT | Severe Thunderstorm Warning | GRR | Clare, Isabella | 14 min |
| Oct 18, 7:01 PM CDT | Severe Thunderstorm Warning | GRR | Kalamazoo, Van Buren | 21 min |
| Oct 18, 7:02 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette, Montgomery | 13 min |
| Oct 18, 7:02 PM CDT | Severe Thunderstorm Warning | DTX | Midland | 29 min |
| Oct 18, 7:06 PM CDT | Severe Thunderstorm Warning | IWX | LaGrange, Noble, Steuben | 54 min |
| Oct 18, 7:09 PM CDT | Tornado Warning | ILX | Lawrence, Richland | 36 min |
| Oct 18, 7:09 PM CDT | Severe Thunderstorm Warning | IWX | LaPorte | 51 min |
| Oct 18, 7:10 PM CDT | Tornado Warning | IWX | Noble, Whitley | 50 min |
| Oct 18, 7:11 PM CDT | Severe Thunderstorm Warning | IND | Warren | 34 min |
| Oct 18, 7:18 PM CDT | Severe Thunderstorm Warning | DTX | Saginaw | 72 min |
| Oct 18, 7:18 PM CDT | Severe Thunderstorm Warning | GRR | Kent, Muskegon, Ottawa | 42 min |
| Oct 18, 7:19 PM CDT | Severe Thunderstorm Warning | APX | Alcona, Arenac, Gladwin, Iosco, Ogemaw, Oscoda and 1 more | 44 min |
| Oct 18, 7:19 PM CDT | Tornado Warning | APX | Alcona, Crawford, Oscoda | 27 min |
| Oct 18, 7:23 PM CDT | Severe Thunderstorm Warning | IWX | LaPorte, Starke | 39 min |
| Oct 18, 7:26 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette, Marion, Washington | 49 min |
| Oct 18, 7:28 PM CDT | Severe Thunderstorm Warning | IND | Boone, Hendricks, Montgomery, Putnam | 36 min |
| Oct 18, 7:30 PM CDT | Severe Thunderstorm Warning | IND | Fountain, Parke, Vermillion | 45 min |
| Oct 18, 7:35 PM CDT | Tornado Warning | DTX | Saginaw | 55 min |
| Oct 18, 7:38 PM CDT | Tornado Warning | APX | Alcona, Alpena | 38 min |
| Oct 18, 7:39 PM CDT | Severe Thunderstorm Warning | APX | Antrim, Charlevoix, Kalkaska, Otsego | 66 min |
| Oct 18, 7:40 PM CDT | Tornado Warning | LSX | Bond, Clinton, Fayette, Marion | 35 min |
| Oct 18, 7:41 PM CDT | Tornado Warning | ILX | Lawrence | 19 min |
| Oct 18, 7:42 PM CDT | Severe Thunderstorm Warning | APX | Alpena, Montmorency | 33 min |
| Oct 18, 7:45 PM CDT | Severe Thunderstorm Warning | GRR | Allegan, Ottawa | 45 min |
| Oct 18, 7:48 PM CDT | Tornado Warning | GRR | Eaton, Ingham | 27 min |
| Oct 18, 7:50 PM CDT | Severe Thunderstorm Warning | IWX | LaPorte, Saint Joseph | 40 min |
| Oct 18, 7:50 PM CDT | Severe Thunderstorm Warning | LOT | Benton, Jasper | 18 min |
| Oct 18, 7:54 PM CDT | Severe Thunderstorm Warning | GRR | Montcalm | 51 min |
| Oct 18, 7:56 PM CDT | Severe Thunderstorm Warning | IND | Clinton, Howard, Tipton | 49 min |
| Oct 18, 7:56 PM CDT | Severe Thunderstorm Warning | GRR | Kalamazoo, Van Buren | 49 min |
| Oct 18, 7:58 PM CDT | Tornado Warning | IWX | Saint Joseph | 47 min |
| Oct 18, 7:58 PM CDT | Severe Thunderstorm Warning | GRR | Allegan | 27 min |
| Oct 18, 8:00 PM CDT | Severe Thunderstorm Warning | GRR | Kent | 15 min |
| Oct 18, 8:02 PM CDT | Severe Thunderstorm Warning | GRR | Isabella, Mecosta | 33 min |
| Oct 18, 8:06 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 29 min |
| Oct 18, 8:06 PM CDT | Severe Thunderstorm Warning | ILX | Clay, Effingham | 39 min |
| Oct 18, 8:09 PM CDT | Severe Thunderstorm Warning | IWX | Pulaski, White | 66 min |
| Oct 18, 8:09 PM CDT | Severe Thunderstorm Warning | GRR | Kent, Muskegon, Ottawa | 51 min |
| Oct 18, 8:10 PM CDT | Severe Thunderstorm Warning | IND | Tippecanoe | 35 min |
| Oct 18, 8:16 PM CDT | Severe Thunderstorm Warning | GRR | Calhoun, Kalamazoo, Van Buren | 44 min |
| Oct 18, 8:18 PM CDT | Tornado Warning | IND | Tippecanoe | 42 min |
| Oct 18, 8:18 PM CDT | Severe Thunderstorm Warning | DTX | Bay | 23 min |
| Oct 18, 8:20 PM CDT | Severe Thunderstorm Warning | GRR | Clare, Gratiot, Isabella, Montcalm | 55 min |
| Oct 18, 8:21 PM CDT | Severe Thunderstorm Warning | APX | Cheboygan, Montmorency, Otsego, Presque Isle | 25 min |
| Oct 18, 8:23 PM CDT | Severe Thunderstorm Warning | APX | Kalkaska, Missaukee, Wexford | 41 min |
| Oct 18, 8:26 PM CDT | Severe Thunderstorm Warning | DTX | Midland | 49 min |
| Oct 18, 8:29 PM CDT | Tornado Warning | IWX | Cass, Saint Joseph | 46 min |
| Oct 18, 8:32 PM CDT | Severe Thunderstorm Warning | APX | Arenac, Gladwin, Iosco, Ogemaw, Roscommon | 58 min |
| Oct 18, 8:37 PM CDT | Severe Thunderstorm Warning | APX | Antrim, Crawford, Kalkaska, Otsego | 51 min |
| Oct 18, 8:37 PM CDT | Severe Thunderstorm Warning | GRR | Kent, Ottawa | 38 min |
| Oct 18, 8:38 PM CDT | Tornado Warning | IND | Boone, Clinton | 36 min |
| Oct 18, 8:39 PM CDT | Severe Thunderstorm Warning | GRR | Kent, Montcalm | 42 min |
| Oct 18, 8:42 PM CDT | Severe Thunderstorm Warning | IWX | Fulton, Marshall, Starke | 48 min |
| Oct 18, 8:59 PM CDT | Tornado Warning | GRR | Kalamazoo | 31 min |
| Oct 18, 9:04 PM CDT | Tornado Warning | GRR | Calhoun, Eaton, Ingham, Jackson | 26 min |
| Oct 18, 9:06 PM CDT | Tornado Warning | IND | Howard | 39 min |
| Oct 18, 9:09 PM CDT | Severe Thunderstorm Warning | APX | Cheboygan, Otsego | 51 min |
| Oct 18, 9:13 PM CDT | Tornado Warning | IWX | Elkhart, Kosciusko, Marshall | 47 min |
| Oct 18, 9:16 PM CDT | Tornado Warning | IND | Jackson, Lawrence | 30 min |
| Oct 18, 9:25 PM CDT | Severe Thunderstorm Warning | APX | Arenac, Gladwin, Iosco, Ogemaw | 65 min |
| Oct 18, 9:25 PM CDT | Tornado Warning | GRR | Calhoun | 35 min |
| Oct 18, 9:29 PM CDT | Tornado Warning | GRR | Ingham | 16 min |
| Oct 18, 9:30 PM CDT | Tornado Warning | IWX | Miami, Wabash | 45 min |
| Oct 18, 9:33 PM CDT | Tornado Warning | DTX | Shiawassee | 57 min |
| Oct 18, 9:36 PM CDT | Severe Thunderstorm Warning | GRR | Clare, Isabella | 24 min |
| Oct 18, 9:41 PM CDT | Tornado Warning | IWX | LaGrange | 34 min |
| Oct 18, 9:45 PM CDT | Severe Thunderstorm Warning | IWX | Elkhart, LaGrange | 60 min |
| Oct 18, 9:45 PM CDT | Tornado Warning | GRR | Ingham | 15 min |
| Oct 18, 9:59 PM CDT | Tornado Warning | IWX | Huntington, Whitley | 28 min |
| Oct 18, 10:04 PM CDT | Severe Thunderstorm Warning | GRR | Eaton | 21 min |
| Oct 18, 10:05 PM CDT | Tornado Warning | IWX | Branch, Saint Joseph | 40 min |
| Oct 18, 10:09 PM CDT | Tornado Warning | GRR | Calhoun | 36 min |
| Oct 18, 10:10 PM CDT | Severe Thunderstorm Warning | APX | Alcona, Alpena, Iosco | 37 min |
| Oct 18, 10:11 PM CDT | Tornado Warning | DTX | Genesee | 49 min |
| Oct 18, 10:25 PM CDT | Tornado Warning | GRR | Calhoun | 38 min |
| Oct 18, 10:30 PM CDT | Severe Thunderstorm Warning | IWX | Allen, DeKalb, Noble | 45 min |
| Oct 18, 10:30 PM CDT | Tornado Warning | DTX | Saginaw, Tuscola | 75 min |
| Oct 18, 10:35 PM CDT | Severe Thunderstorm Warning | GRR | Eaton, Ingham | 40 min |
| Oct 18, 10:52 PM CDT | Tornado Warning | GRR | Ingham, Jackson | 23 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
Detroit, MI (KDTX), launched 12:00Z, 8.4 hours before the alert went out and 183 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
- 9 J/kg
- Mixed-layer CIN
- -154 J/kg
- Mixed-layer LCL
- 923 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 176 m²/s²
- 0-3 km storm-relative helicity
- 199 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 |
|---|---|---|---|---|
| Oct 17, 7:57 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Fulton, Hancock, Henderson, McDonough and 3 more | 63 min |
| Oct 17, 10:56 PM CDT | Mesoscale Discussion | SPC | Adams, Alexander, Bond, Brown, Calhoun, Cass and 34 more | 64 min |
| Oct 17, 11:40 PM CDT | Tornado Watch | SPC | Alexander, Bond, Calhoun, Clinton, Fayette, Greene and 13 more | 4 hr |
| Oct 18, 2:01 AM CDT | Tornado Watch | SPC | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 5 hr |
| Oct 18, 2:02 AM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Christian, Clinton, Fayette, Greene and 14 more | 58 min |
| Oct 18, 2:27 AM CDT | Tornado Watch | SPC | Edwards, Franklin, Gallatin, Hamilton, Hardin, Jefferson and 9 more | 4 hr |
| Oct 18, 4:08 AM CDT | Mesoscale Discussion | SPC | Alexander, Champaign, Clark, Clay, Coles, Crawford and 34 more | 67 min |
| Oct 18, 4:37 AM CDT | Tornado Watch | SPC | Ford, Iroquois, Kankakee | 3 hr |
| Oct 18, 11:36 AM CDT | Mesoscale Discussion | SPC | Boone, Carroll, Kane, McHenry, Ogle, Stephenson and 1 more | 2 hr |
| Oct 18, 1:31 PM CDT | Tornado Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 9 hr |
| Oct 18, 1:44 PM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 23 more | 2 hr |
| Oct 18, 5:39 PM CDT | Mesoscale Discussion | SPC | Alexander, Gallatin, Hamilton, Hardin, Johnson, Massac and 6 more | 66 min |
| Oct 18, 6:34 PM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Clay, Clinton, Coles, Crawford and 16 more | 116 min |
| Oct 18, 10:26 AM CDT | Mesoscale Discussion | SPC | Clark, Crawford, Floyd, Harrison, Perry, Spencer | 2 hr |
| Oct 18, 1:59 PM CDT | Mesoscale Discussion | SPC | Allen, Cass, DeKalb, Elkhart, Fulton, Huntington and 13 more | 61 min |
| Oct 18, 2:31 PM CDT | Tornado Watch | SPC | Dickinson, Gogebic, Iron, Menominee | 4 hr |
| Oct 18, 5:49 PM CDT | Mesoscale Discussion | SPC | Menominee | 86 min |
| Oct 18, 6:30 PM CDT | Mesoscale Discussion | SPC | Adams, Allen, Auglaize, Brown, Butler, Champaign and 25 more | 90 min |
Nearby
Tornado Watches in Indiana, 2007Tornado Watches in Michigan, 2007Tornado Watches in Illinois, 2007Every tornado 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.