Alert archive / Indiana / Severe Thunderstorm Watches in 2011
Severe Thunderstorm Watch 803
The Storm Prediction Center issued this severe thunderstorm watch at Aug 24, 2011, 6:08 PM CDT for 5 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 24, 2011, 6:08 PM CDT (23:08 UTC)
- Expired
- Aug 25, 2011, 12:32 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 121 counties
Bond County, IL, Brown County, IL, Calhoun County, IL, Cass County, IL, Champaign County, IL, Christian County, IL, Clark County, IL, Clay County, IL, Clinton County, IL, Coles County, IL, Crawford County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Effingham County, IL, Fayette County, IL, Ford County, IL, Greene County, IL, Iroquois County, IL, Jasper County, IL, Jersey County, IL, Kankakee County, IL, Lawrence County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, McLean County, IL, Menard County, IL, Monroe County, IL, Montgomery County, IL, Morgan County, IL, Moultrie County, IL, Piatt County, IL, Pike County, IL, Richland County, IL, Saint Clair County, IL, Sangamon County, IL, Scott County, IL, Shelby County, IL, Vermilion County, IL, Washington County, IL, Adams County, IN, Allen County, IN, Benton County, IN, Blackford County, IN, Boone County, IN, Carroll County, IN, Cass County, IN, Clay County, IN, Clinton County, IN, DeKalb County, IN, Delaware County, IN, Elkhart County, IN, Fountain County, IN, Fulton County, IN, Grant County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Howard County, IN, Huntington County, IN, Jasper County, IN, Jay County, IN, Johnson County, IN, Kosciusko County, IN, LaGrange County, IN, Lake County, IN, LaPorte County, IN, Madison County, IN, Marion County, IN, Marshall County, IN, Miami 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, Saint Joseph 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, Hillsdale County, MI, Saint Joseph County, MI, City of Saint Louis, MO, Franklin County, MO, Gasconade County, MO, Jefferson County, MO, Lincoln County, MO, Montgomery County, MO, Pike County, MO, Saint Charles County, MO, Saint Louis County, MO, Warren County, MO, Allen County, OH, Defiance County, OH, Fulton County, OH, Henry County, OH, Paulding County, OH, Putnam County, OH, Van Wert County, OH, Williams County, OH
The radar
The Chicago radar (KLOT), 119 km from the middle of the area, began a volume at 23:10 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
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 90%
- 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
- 95%
Warnings issued inside it
17 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 6:59 PM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 31 min |
| Aug 24, 7:09 PM CDT | Severe Thunderstorm Warning | IWX | Cass, Saint Joseph | 51 min |
| Aug 24, 7:10 PM CDT | Severe Thunderstorm Warning | IND | Fountain, Parke, Vermillion, Warren | 35 min |
| Aug 24, 7:15 PM CDT | Severe Thunderstorm Warning | IND | Fountain, Montgomery, Tippecanoe, Warren | 30 min |
| Aug 24, 7:19 PM CDT | Severe Thunderstorm Warning | IWX | Branch, Cass, Saint Joseph | 41 min |
| Aug 24, 7:33 PM CDT | Severe Thunderstorm Warning | IND | Carroll, Clinton, Tippecanoe | 42 min |
| Aug 24, 7:43 PM CDT | Severe Thunderstorm Warning | IND | Fountain, Montgomery, Parke, Putnam, Vermillion | 47 min |
| Aug 24, 7:57 PM CDT | Severe Thunderstorm Warning | IWX | Elkhart, LaGrange, Saint Joseph | 33 min |
| Aug 24, 8:24 PM CDT | Severe Thunderstorm Warning | IWX | Defiance, Fulton, Henry, Williams | 51 min |
| Aug 24, 8:25 PM CDT | Severe Thunderstorm Warning | IND | Fountain, Montgomery, Parke, Putnam, Vermillion | 50 min |
| Aug 24, 8:50 PM CDT | Severe Thunderstorm Warning | IWX | Allen | 25 min |
| Aug 24, 8:54 PM CDT | Severe Thunderstorm Warning | IWX | Defiance, Paulding | 36 min |
| Aug 24, 9:08 PM CDT | Severe Thunderstorm Warning | IND | Boone, Hendricks, Montgomery, Putnam | 27 min |
| Aug 24, 9:14 PM CDT | Severe Thunderstorm Warning | IWX | Fulton, Henry | 31 min |
| Aug 24, 9:15 PM CDT | Severe Thunderstorm Warning | IWX | Adams, Allen | 30 min |
| Aug 24, 9:28 PM CDT | Severe Thunderstorm Warning | IWX | Defiance, Henry, Paulding, Putnam | 47 min |
| Aug 24, 10:49 PM CDT | Severe Thunderstorm Warning | IND | Hamilton, Hancock, Henry, Madison, Marion, Rush | 41 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 3:46 PM CDT | Mesoscale Discussion | SPC | Cass, Champaign, Christian, DeWitt, Douglas, Edgar and 18 more | 89 min |
| Aug 24, 5:00 PM CDT | Tornado Watch | SPC | Alcona, Allegan, Alpena, Arenac, Barry, Bay and 36 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Indiana, 2011Severe Thunderstorm Watches in Illinois, 2011Severe Thunderstorm Watches in Missouri, 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; radar from the NEXRAD Level II archive.