Alert archive / Indiana / Tornado Watches in 2010
Tornado Watch 720
The Storm Prediction Center issued this tornado watch at Oct 26, 2010, 3:28 AM CDT for 4 states. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 26, 2010, 3:28 AM CDT (08:28 UTC)
- Expired
- Oct 26, 2010, 11:00 AM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 80 kt
All 124 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, DeWitt County, IL, Douglas County, IL, DuPage County, IL, Edgar County, IL, Effingham County, IL, Fayette County, IL, Ford County, IL, Grundy County, IL, Iroquois County, IL, Jasper County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Lake County, IL, Lawrence County, IL, Livingston County, IL, Macon County, IL, Marion County, IL, McHenry County, IL, McLean County, IL, Montgomery County, IL, Moultrie County, IL, Piatt County, IL, Richland County, IL, Shelby County, IL, Vermilion County, IL, Washington County, IL, Will County, IL, Benton County, IN, Boone County, IN, Brown County, IN, Carroll County, IN, Cass County, IN, Clay County, IN, Clinton County, IN, Daviess 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, Howard County, IN, Jasper County, IN, Johnson County, IN, Knox County, IN, Kosciusko 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, Owen County, IN, Parke County, IN, Porter County, IN, Pulaski County, IN, Putnam County, IN, Saint Joseph County, IN, Shelby County, IN, Starke County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Vigo County, IN, Wabash County, IN, Warren County, IN, White County, IN, Allegan County, MI, Barry County, MI, Berrien County, MI, Calhoun County, MI, Cass County, MI, Clare County, MI, Clinton County, MI, Eaton County, MI, Gratiot County, MI, Ingham County, MI, Ionia County, MI, Isabella County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Lake County, MI, Mason County, MI, Mecosta County, MI, Montcalm County, MI, Muskegon County, MI, Newaygo County, MI, Oceana County, MI, Osceola County, MI, Ottawa County, MI, Saint Joseph County, MI, Van Buren County, MI, Dodge County, WI, Fond du Lac County, WI, Jefferson County, WI, Kenosha County, WI, Milwaukee County, WI, Ozaukee County, WI, Racine County, WI, Sheboygan County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI
The radar
The Chicago radar (KLOT), 29 km from the middle of the area, began a volume at 08:31 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
- 80%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 95%
- One or more gusts of 65 knots or more
- 70%
- Ten or more severe hail reports
- 10%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
52 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 26, 4:33 AM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette, Macoupin, Madison, Marion and 2 more | 57 min |
| Oct 26, 4:36 AM CDT | Severe Thunderstorm Warning | ILX | Christian, Logan, Morgan, Sangamon | 54 min |
| Oct 26, 5:15 AM CDT | Tornado Warning | LSX | Bond, Clinton, Fayette, Montgomery | 30 min |
| Oct 26, 5:30 AM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette, Marion, Montgomery, Washington | 45 min |
| Oct 26, 5:49 AM CDT | Severe Thunderstorm Warning | MKX | Rock, Walworth | 41 min |
| Oct 26, 5:54 AM CDT | Tornado Warning | LSX | Fayette | 21 min |
| Oct 26, 6:03 AM CDT | Tornado Warning | LSX | Marion | 17 min |
| Oct 26, 6:09 AM CDT | Severe Thunderstorm Warning | ILX | Clay, Coles, Cumberland, Douglas, Effingham, Jasper and 2 more | 51 min |
| Oct 26, 6:18 AM CDT | Severe Thunderstorm Warning | MKX | Dodge, Jefferson | 18 min |
| Oct 26, 6:21 AM CDT | Tornado Warning | ILX | Clay | 24 min |
| Oct 26, 6:42 AM CDT | Severe Thunderstorm Warning | IND | Clay, Fountain, Montgomery, Parke, Putnam, Tippecanoe and 3 more | 63 min |
| Oct 26, 6:49 AM CDT | Severe Thunderstorm Warning | ILX | Clark, Coles, Crawford, Cumberland, Douglas, Edgar and 3 more | 41 min |
| Oct 26, 6:55 AM CDT | Tornado Warning | LOT | Kane | 13 min |
| Oct 26, 7:14 AM CDT | Severe Thunderstorm Warning | IND | Clay, Daviess, Greene, Knox, Owen, Putnam and 2 more | 46 min |
| Oct 26, 7:27 AM CDT | Severe Thunderstorm Warning | ILX | Lawrence | 20 min |
| Oct 26, 7:27 AM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Racine | 33 min |
| Oct 26, 7:29 AM CDT | Severe Thunderstorm Warning | LOT | Lake | 12 min |
| Oct 26, 7:30 AM CDT | Tornado Warning | IND | Fountain, Montgomery, Parke, Vermillion | 30 min |
| Oct 26, 7:37 AM CDT | Tornado Warning | LOT | Kankakee, Will | 23 min |
| Oct 26, 7:44 AM CDT | Severe Thunderstorm Warning | IND | Boone, Carroll, Clay, Clinton, Fountain, Hendricks and 7 more | 46 min |
| Oct 26, 7:46 AM CDT | Tornado Warning | LOT | Iroquois | 29 min |
| Oct 26, 7:47 AM CDT | Severe Thunderstorm Warning | LOT | Lake | 10 min |
| Oct 26, 7:52 AM CDT | Severe Thunderstorm Warning | IND | Clay, Daviess, Greene, Knox, Lawrence, Martin and 4 more | 38 min |
| Oct 26, 7:53 AM CDT | Tornado Warning | IND | Boone, Hendricks, Montgomery, Parke, Putnam | 37 min |
| Oct 26, 7:58 AM CDT | Tornado Warning | MKX | Racine | 17 min |
| Oct 26, 8:01 AM CDT | Tornado Warning | IWX | LaPorte, Pulaski, Saint Joseph, Starke | 59 min |
| Oct 26, 8:07 AM CDT | Tornado Warning | IND | Daviess, Greene, Martin | 38 min |
| Oct 26, 8:13 AM CDT | Severe Thunderstorm Warning | IND | Boone, Carroll, Clinton, Hamilton, Hancock, Hendricks and 7 more | 47 min |
| Oct 26, 8:15 AM CDT | Tornado Warning | LOT | Jasper, Lake, Porter | 45 min |
| Oct 26, 8:23 AM CDT | Tornado Warning | IWX | Cass, Fulton, Kosciusko, Miami, Pulaski, Wabash and 1 more | 52 min |
| Oct 26, 8:25 AM CDT | Severe Thunderstorm Warning | IND | Brown, Daviess, Greene, Jackson, Johnson, Lawrence and 4 more | 50 min |
| Oct 26, 8:28 AM CDT | Tornado Warning | IND | Hendricks, Marion | 32 min |
| Oct 26, 8:34 AM CDT | Tornado Warning | IND | Brown, Jackson, Lawrence, Monroe | 41 min |
| Oct 26, 8:39 AM CDT | Tornado Warning | IND | Johnson, Marion, Morgan | 36 min |
| Oct 26, 8:45 AM CDT | Severe Thunderstorm Warning | IND | Delaware, Hamilton, Hancock, Henry, Howard, Johnson and 5 more | 45 min |
| Oct 26, 8:55 AM CDT | Tornado Warning | IWX | Blackford, Grant, Huntington, Wells | 50 min |
| Oct 26, 8:56 AM CDT | Tornado Warning | IND | Hamilton, Madison, Tipton | 22 min |
| Oct 26, 8:59 AM CDT | Severe Thunderstorm Warning | IND | Bartholomew, Brown, Jackson, Johnson, Lawrence, Monroe and 2 more | 46 min |
| Oct 26, 9:00 AM CDT | Tornado Warning | IWX | LaPorte, Marshall, Saint Joseph, Starke | 35 min |
| Oct 26, 9:11 AM CDT | Tornado Warning | IND | Bartholomew, Johnson, Shelby | 34 min |
| Oct 26, 9:14 AM CDT | Severe Thunderstorm Warning | IND | Delaware, Hancock, Henry, Madison, Randolph, Rush and 1 more | 76 min |
| Oct 26, 9:15 AM CDT | Tornado Warning | IND | Delaware, Hancock, Henry, Madison, Rush | 30 min |
| Oct 26, 9:20 AM CDT | Severe Thunderstorm Warning | IWX | Adams, Allen, DeKalb, Huntington, Kosciusko, Noble and 3 more | 55 min |
| Oct 26, 9:22 AM CDT | Tornado Warning | GRR | Allegan, Van Buren | 23 min |
| Oct 26, 9:26 AM CDT | Severe Thunderstorm Warning | IND | Bartholomew, Decatur, Jackson, Jennings, Rush, Shelby | 51 min |
| Oct 26, 9:31 AM CDT | Tornado Warning | IWX | Elkhart, Kosciusko, LaGrange, Noble | 29 min |
| Oct 26, 9:43 AM CDT | Tornado Warning | IND | Decatur, Rush, Shelby | 28 min |
| Oct 26, 9:45 AM CDT | Tornado Warning | GRR | Allegan, Barry, Ionia, Kalamazoo, Kent, Van Buren | 45 min |
| Oct 26, 10:09 AM CDT | Tornado Warning | GRR | Calhoun | 41 min |
| Oct 26, 10:34 AM CDT | Tornado Warning | GRR | Barry, Ionia, Kent | 28 min |
| Oct 26, 10:39 AM CDT | Tornado Warning | GRR | Eaton | 19 min |
| Oct 26, 10:55 AM CDT | Tornado Warning | GRR | Jackson | 50 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
Davenport, (KDVN), launched 00:00Z, 8.5 hours before the alert went out and 227 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
- 158 J/kg
- Mixed-layer CIN
- -132 J/kg
- Mixed-layer LCL
- 857 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 357 m²/s²
- 0-3 km storm-relative helicity
- 405 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.9
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 25, 9:36 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Bureau, Calhoun, Carroll and 38 more | 24 min |
| Oct 25, 10:03 PM CDT | Tornado Watch | SPC | Adams, Boone, Brown, Bureau, Calhoun, Carroll and 39 more | 9 hr |
| Oct 26, 2:21 AM CDT | Mesoscale Discussion | SPC | Adams, Boone, Brown, Bureau, Calhoun, Carroll and 54 more | 114 min |
| Oct 26, 3:38 AM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 13 more | 2 hr |
| Oct 26, 4:05 AM CDT | Tornado Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 8 hr |
| Oct 26, 6:00 AM CDT | Mesoscale Discussion | SPC | Alexander, Boone, Bureau, Carroll, Champaign, Clark and 60 more | 2 hr |
| Oct 26, 7:55 AM CDT | Tornado Watch | SPC | Adams, Allen, Bartholomew, Blackford, Clark, Crawford and 31 more | 7 hr |
| Oct 26, 5:30 AM CDT | Mesoscale Discussion | SPC | Delta, Menominee | 60 min |
| Oct 26, 9:46 AM CDT | Mesoscale Discussion | SPC | Bay, Calhoun, Clinton, Eaton, Genesee, Gratiot and 15 more | 59 min |
| Oct 26, 10:04 AM CDT | Tornado Watch | SPC | Alcona, Allegan, Arenac, Barry, Bay, Benzie and 48 more | 4 hr |
| Oct 25, 10:41 PM CDT | Mesoscale Discussion | SPC | McDonald | 64 min |
Nearby
Tornado Watches in Indiana, 2010Tornado Watches in Illinois, 2010Tornado Watches in Michigan, 2010Every tornado watch in 2010
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.