Alert archive / Indiana / Severe Thunderstorm Watches in 2011
Severe Thunderstorm Watch 426
The Storm Prediction Center issued this severe thunderstorm watch at Jun 4, 2011, 2:08 PM CDT for 4 states. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 4, 2011, 2:08 PM CDT (19:08 UTC)
- Expired
- Jun 4, 2011, 9:00 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 60 kt
All 74 counties
Cook County, IL, DeKalb County, IL, DuPage County, IL, Ford County, IL, Grundy County, IL, Iroquois County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, LaSalle County, IL, Livingston County, IL, Will County, IL, Adams County, IN, Allen County, IN, Benton County, IN, Blackford County, IN, Cass County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Grant County, IN, Huntington County, IN, Jasper County, IN, Jay County, IN, Kosciusko County, IN, LaGrange County, IN, Lake County, IN, LaPorte County, IN, Marshall County, IN, Miami County, IN, Newton County, IN, Noble County, IN, Porter County, IN, Pulaski County, IN, Saint Joseph County, IN, Starke County, IN, Steuben County, IN, Wabash County, IN, Wells County, IN, White County, IN, Whitley County, IN, Berrien County, MI, Branch County, MI, Calhoun County, MI, Cass County, MI, Genesee County, MI, Hillsdale County, MI, Ingham County, MI, Jackson County, MI, Lapeer County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Monroe County, MI, Oakland County, MI, Saint Clair County, MI, Saint Joseph County, MI, Shiawassee County, MI, Washtenaw County, MI, Wayne County, MI, Allen County, OH, Defiance County, OH, Fulton County, OH, Hancock County, OH, Henry County, OH, Lucas County, OH, Ottawa County, OH, Paulding County, OH, Putnam County, OH, Sandusky County, OH, Seneca County, OH, Van Wert County, OH, Williams County, OH, Wood County, OH
The radar
The Northern Indiana radar (KIWX), 66 km from the middle of the area, began a volume at 19:07 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
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 70%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
21 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 3:02 PM CDT | Severe Thunderstorm Warning | LOT | DuPage, Kane, Kendall, Will | 58 min |
| Jun 4, 3:34 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Grundy, Kendall, Will | 56 min |
| Jun 4, 3:44 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 48 min |
| Jun 4, 3:59 PM CDT | Severe Thunderstorm Warning | IWX | Cass, Fulton, Pulaski | 42 min |
| Jun 4, 4:07 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Kankakee, Will | 53 min |
| Jun 4, 4:18 PM CDT | Severe Thunderstorm Warning | IWX | Allen, Putnam | 42 min |
| Jun 4, 4:37 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois, Kankakee | 68 min |
| Jun 4, 4:37 PM CDT | Severe Thunderstorm Warning | IWX | Grant | 53 min |
| Jun 4, 4:50 PM CDT | Tornado Warning | LOT | Jasper, Porter | 25 min |
| Jun 4, 5:08 PM CDT | Severe Thunderstorm Warning | IWX | Cass, Fulton, Pulaski, Starke, White | 52 min |
| Jun 4, 5:16 PM CDT | Severe Thunderstorm Warning | IWX | White | 59 min |
| Jun 4, 5:17 PM CDT | Severe Thunderstorm Warning | IWX | Cass, Grant, Miami | 58 min |
| Jun 4, 5:38 PM CDT | Severe Thunderstorm Warning | IWX | Adams, Blackford, Grant, Huntington, Jay, Wabash and 1 more | 67 min |
| Jun 4, 5:45 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 75 min |
| Jun 4, 5:45 PM CDT | Severe Thunderstorm Warning | IWX | Cass, Fulton, Miami, Pulaski, Wabash, White | 45 min |
| Jun 4, 6:23 PM CDT | Severe Thunderstorm Warning | IWX | Cass, White | 37 min |
| Jun 4, 6:26 PM CDT | Flash Flood Warning | IWX | White | 6 hr |
| Jun 4, 6:32 PM CDT | Severe Thunderstorm Warning | IWX | Grant, Huntington, Miami, Wabash | 58 min |
| Jun 4, 6:44 PM CDT | Severe Thunderstorm Warning | IWX | Adams, Huntington, Jay, Wells | 46 min |
| Jun 4, 7:42 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois, Livingston | 48 min |
| Jun 4, 8:31 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois | 44 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, 7.1 hours before the alert went out and 259 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
- 2749 J/kg
- Mixed-layer CIN
- -90 J/kg
- Mixed-layer LCL
- 1232 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -127 m²/s²
- 0-3 km storm-relative helicity
- -92 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 |
|---|---|---|---|---|
| Jun 4, 1:27 PM CDT | Mesoscale Discussion | SPC | Bureau, Cook, DeKalb, DuPage, Grundy, Iroquois and 8 more | 63 min |
| Jun 4, 4:47 PM CDT | Mesoscale Discussion | SPC | DeWitt, Fulton, Hancock, Henderson, Knox, Logan and 10 more | 28 min |
| Jun 4, 4:53 PM CDT | Severe Thunderstorm Watch | SPC | Cass, Champaign, Christian, Clark, Coles, Cumberland and 25 more | 6 hr |
| Jun 4, 5:13 PM CDT | Severe Thunderstorm Watch | SPC | Bartholomew, Boone, Brown, Carroll, Clay, Clinton and 34 more | 7 hr |
| Jun 3, 9:07 PM CDT | Mesoscale Discussion | SPC | Alger, Baraga, Chippewa, Delta, Dickinson, Houghton and 8 more | 83 min |
| Jun 3, 10:49 PM CDT | Severe Thunderstorm Watch | SPC | Alger, Baraga, Delta, Dickinson, Gogebic, Houghton and 6 more | 5 hr |
| Jun 4, 4:51 PM CDT | Mesoscale Discussion | SPC | Ashland, Athens, Belmont, Carroll, Columbiana, Coshocton and 37 more | 24 min |
Nearby
Severe Thunderstorm Watches in Indiana, 2011Severe Thunderstorm Watches in Michigan, 2011Severe Thunderstorm Watches in Ohio, 2011Every severe thunderstorm watch in 2011
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.