Alert archive / Indiana / Severe Thunderstorm Watches in 2013
Severe Thunderstorm Watch 93
The Storm Prediction Center issued this severe thunderstorm watch at Apr 10, 2013, 6:52 PM CDT for 39 counties in Illinois; 45 counties in Indiana; 6 counties in Missouri. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 10, 2013, 6:52 PM CDT (23:52 UTC)
- Expired
- Apr 11, 2013, 2:00 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 90 counties
Adams County, IL, Brown County, IL, Calhoun County, IL, Cass County, IL, Champaign County, IL, Christian County, IL, Clark County, IL, Clay County, IL, Coles County, IL, Crawford County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Effingham County, IL, Ford County, IL, Fulton County, IL, Greene County, IL, Iroquois County, IL, Jasper County, IL, Jersey County, IL, Lawrence County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Mason County, IL, McLean County, IL, Menard County, IL, Morgan County, IL, Moultrie County, IL, Piatt County, IL, Pike County, IL, Richland County, IL, Sangamon County, IL, Schuyler County, IL, Scott County, IL, Shelby County, IL, Tazewell County, IL, Vermilion 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, Delaware County, IN, Fountain County, IN, Fulton County, IN, Grant County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Huntington County, IN, Jasper County, IN, Jay County, IN, Johnson County, IN, Madison County, IN, Marion County, IN, Miami County, IN, Montgomery County, IN, Morgan County, IN, Newton County, IN, Owen County, IN, Parke County, IN, Pulaski County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Shelby 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, Lincoln County, MO, Marion County, MO, Montgomery County, MO, Pike County, MO, Ralls County, MO, Warren County, MO
The radar
The Indianapolis radar (KIND), 114 km from the middle of the area, began a volume at 23:54 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
- 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
- 20%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
16 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 6:54 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Franklin, Gasconade, Lincoln, Montgomery, Warren | 51 min |
| Apr 10, 7:25 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 50 min |
| Apr 10, 8:05 PM CDT | Flash Flood Warning | ILX | DeWitt, Macon, Piatt | 6 hr |
| Apr 10, 8:07 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette, Jersey, Macoupin, Madison and 3 more | 53 min |
| Apr 10, 8:12 PM CDT | Flash Flood Warning | ILX | Fulton, Schuyler | 6 hr |
| Apr 10, 8:45 PM CDT | Flash Flood Warning | ILX | Cass, Mason, Menard, Morgan, Scott | 6 hr |
| Apr 10, 8:51 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Montgomery | 24 min |
| Apr 10, 8:58 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon, Moultrie, Shelby | 62 min |
| Apr 10, 10:09 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, McLean, Piatt | 36 min |
| Apr 10, 10:23 PM CDT | Flash Flood Warning | ILX | Peoria, Tazewell, Woodford | 6 hr |
| Apr 10, 10:30 PM CDT | Severe Thunderstorm Warning | ILX | Clark, Coles, Cumberland, Edgar | 45 min |
| Apr 10, 10:40 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Douglas, Edgar, Vermilion | 35 min |
| Apr 10, 11:03 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 42 min |
| Apr 11, 12:18 AM CDT | Tornado Warning | IND | Boone, Carroll, Clinton, Howard, Montgomery, Tippecanoe and 1 more | 27 min |
| Apr 11, 12:48 AM CDT | Tornado Warning | IND | Carroll, Clinton, Howard | 27 min |
| Apr 11, 1:19 AM CDT | Severe Thunderstorm Warning | IWX | Miami, Wabash | 26 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, 11.9 hours before the alert went out and 97 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
- 2649 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 701 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 219 m²/s²
- 0-3 km storm-relative helicity
- 219 m²/s²
- Significant tornado parameter
- 2.6
- Supercell composite
- 15.4
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 12:36 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Coles, Crawford and 11 more | 84 min |
| Apr 10, 12:53 PM CDT | Severe Thunderstorm Watch | SPC | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 10 more | 7 hr |
| Apr 10, 1:03 PM CDT | Mesoscale Discussion | SPC | Alexander, Jackson, Monroe, Perry, Randolph, Saint Clair and 2 more | 117 min |
| Apr 10, 1:46 PM CDT | Tornado Watch | SPC | Alexander, Bond, Clinton, Edwards, Fayette, Franklin and 17 more | 7 hr |
| Apr 10, 2:59 PM CDT | Mesoscale Discussion | SPC | Clark, Clay, Coles, Crawford, Cumberland, Douglas and 5 more | 61 min |
| Apr 10, 3:01 PM CDT | Mesoscale Discussion | SPC | Alexander, Clay, Clinton, Franklin, Jackson, Jefferson and 10 more | 119 min |
| Apr 10, 6:09 PM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Brown, Calhoun, Cass, Champaign and 39 more | 96 min |
| Apr 9, 8:41 PM CDT | Mesoscale Discussion | SPC | Atchison | 64 min |
| Apr 9, 9:01 PM CDT | Mesoscale Discussion | SPC | Barry, Barton, Bates, Benton, Cass, Cedar and 20 more | 89 min |
| Apr 9, 11:27 PM CDT | Mesoscale Discussion | SPC | Atchison | 63 min |
| Apr 10, 1:20 PM CDT | Tornado Watch | SPC | Dunklin, Pemiscot | 10 hr |
Nearby
Severe Thunderstorm Watches in Indiana, 2013Severe Thunderstorm Watches in Illinois, 2013Severe Thunderstorm Watches in Missouri, 2013Every severe thunderstorm watch in 2013
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.