Alert archive / Indiana / Mesoscale Discussions in 2023
Mesoscale Discussion 482
The Storm Prediction Center issued this mesoscale discussion at Apr 5, 2023, 10:09 AM EDT for 51 counties in Indiana; 8 counties in Kentucky; 4 counties in Ohio. It was in force for 66 min.
The area
The outline as issued.
The facts
- Issued
- Apr 5, 2023, 10:09 AM EDT (14:09 UTC)
- Expired
- Apr 5, 2023, 11:15 AM EDT
- In force
- 66 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch likely
- Chance of a watch
- 80%
All 63 counties
Bartholomew County, IN, Boone County, IN, Brown County, IN, Clark County, IN, Clay County, IN, Clinton County, IN, Crawford County, IN, Daviess County, IN, Dearborn County, IN, Decatur County, IN, Delaware County, IN, Dubois County, IN, Fayette County, IN, Floyd County, IN, Franklin County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Harrison County, IN, Hendricks County, IN, Henry County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Martin County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Ohio County, IN, Orange County, IN, Owen County, IN, Parke County, IN, Perry County, IN, Putnam County, IN, Randolph County, IN, Ripley County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Sullivan County, IN, Switzerland County, IN, Tipton County, IN, Union County, IN, Vigo County, IN, Washington County, IN, Wayne County, IN, Boone County, KY, Carroll County, KY, Gallatin County, KY, Henry County, KY, Jefferson County, KY, Meade County, KY, Oldham County, KY, Trimble County, KY, Butler County, OH, Darke County, OH, Hamilton County, OH, Preble County, OH
The radar
The Indianapolis radar (KIND), 79 km from the middle of the area, began a volume at 14:10 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.
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 2.2 hours before the alert went out and 174 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
- 630 J/kg
- Mixed-layer CIN
- -189 J/kg
- Mixed-layer LCL
- 1078 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 386 m²/s²
- 0-3 km storm-relative helicity
- 377 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.5
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 5, 4:27 AM EDT | Mesoscale Discussion | SPC | Jasper, Lake, Newton, Porter | 93 min |
| Apr 5, 4:57 AM EDT | Severe Thunderstorm Watch | SPC | Benton, Jasper, Lake, Newton, Porter | 8 hr |
| Apr 5, 6:19 AM EDT | Mesoscale Discussion | SPC | Bartholomew, Boone, Brown, Clay, Clinton, Daviess and 27 more | 86 min |
| Apr 5, 7:09 AM EDT | Mesoscale Discussion | SPC | Adams, Allen, Blackford, Carroll, Cass, Clinton and 25 more | 2 hr |
| Apr 5, 8:41 AM EDT | Tornado Watch | SPC | Adams, Allen, Blackford, Cass, DeKalb, Elkhart and 18 more | 7 hr |
| Apr 5, 9:44 AM EDT | Tornado Watch | SPC | Gibson, Pike, Posey, Spencer, Vanderburgh, Warrick | 7 hr |
| Apr 5, 10:25 AM EDT | Tornado Watch | SPC | Bartholomew, Boone, Brown, Carroll, Clark, Clay and 51 more | 7 hr |
| Apr 5, 10:57 AM EDT | Mesoscale Discussion | SPC | Adams, Allen, Carroll, Cass, DeKalb, Elkhart and 15 more | 93 min |
| Apr 5, 1:36 PM EDT | Mesoscale Discussion | SPC | Bartholomew, Brown, Clark, Crawford, Daviess, Dearborn and 27 more | 84 min |
| Apr 5, 2:38 PM EDT | Severe Thunderstorm Watch | SPC | Clark, Floyd, Harrison, Jefferson, Scott, Washington | 6 hr |
| Apr 5, 4:05 PM EDT | Mesoscale Discussion | SPC | Clark, Crawford, Dubois, Floyd, Harrison, Jefferson and 7 more | 85 min |
| Apr 5, 12:51 PM EDT | Mesoscale Discussion | SPC | Ballard, Calloway, Carlisle, Crittenden, Fulton, Graves and 5 more | 84 min |
| Apr 5, 1:51 PM EDT | Mesoscale Discussion | SPC | Adair, Allen, Barren, Boyle, Butler, Casey and 18 more | 84 min |
| Apr 5, 2:02 PM EDT | Severe Thunderstorm Watch | SPC | Bracken, Grant, Lewis, Mason, Owen, Pendleton and 1 more | 8 hr |
| Apr 5, 6:12 PM EDT | Mesoscale Discussion | SPC | Bath, Bell, Breathitt, Carter, Clay, Elliott and 22 more | 2 hr |
| Apr 5, 6:46 PM EDT | Mesoscale Discussion | SPC | Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 11 more | 89 min |
Nearby
Mesoscale Discussions in Indiana, 2023Mesoscale Discussions in Kentucky, 2023Mesoscale Discussions in Ohio, 2023Every mesoscale discussion in 2023
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.