Alert archive / Indiana / Mesoscale Discussions in 2024
Mesoscale Discussion 2016
The Storm Prediction Center issued this mesoscale discussion at Aug 27, 2024, 4:56 PM EDT for 17 counties in Indiana; 5 counties in Michigan; 9 counties in Ohio. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 27, 2024, 4:56 PM EDT (20:56 UTC)
- Expired
- Aug 27, 2024, 7:00 PM EDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch possible
- Chance of a watch
- 60%
All 31 counties
Adams County, IN, Allen County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Huntington County, IN, Kosciusko County, IN, LaGrange County, IN, Marshall County, IN, Miami County, IN, Noble County, IN, Saint Joseph County, IN, Starke County, IN, Steuben County, IN, Wabash County, IN, Wells County, IN, Whitley County, IN, Branch County, MI, Hillsdale County, MI, Lenawee County, MI, Monroe County, MI, Saint Joseph County, MI, Defiance County, OH, Fulton County, OH, Henry County, OH, Lucas County, OH, Paulding County, OH, Putnam County, OH, Van Wert County, OH, Williams County, OH, Wood County, OH
The radar
The Northern Indiana radar (KIWX), 56 km from the middle of the area, began a volume at 20:55 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
Detroit, MI (KDTX), launched 12:00Z, 8.9 hours before the alert went out and 195 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
- 1160 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 1052 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
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 |
|---|---|---|---|---|
| Aug 27, 12:25 PM EDT | Mesoscale Discussion | SPC | Lake, LaPorte, Porter | 3 hr |
| Aug 27, 5:47 PM EDT | Mesoscale Discussion | SPC | Lake, LaPorte, Porter, Starke | 88 min |
| Aug 27, 6:09 PM EDT | Severe Thunderstorm Watch | SPC | Benton, Jasper, Lake, Newton, Porter | 6 hr |
| Aug 27, 7:24 PM EDT | Mesoscale Discussion | SPC | Lake, LaPorte, Porter, Starke | 96 min |
| Aug 27, 12:11 AM EDT | Mesoscale Discussion | SPC | Dickinson, Iron, Menominee | 64 min |
| Aug 27, 1:48 PM EDT | Severe Thunderstorm Watch | SPC | Allegan, Arenac, Barry, Benzie, Calhoun, Clare and 29 more | 5 hr |
| Aug 27, 3:46 PM EDT | Mesoscale Discussion | SPC | Arenac, Barry, Bay, Calhoun, Clinton, Eaton and 22 more | 119 min |
| Aug 27, 3:52 PM EDT | Severe Thunderstorm Watch | SPC | Bay, Genesee, Huron, Lapeer, Lenawee, Livingston and 11 more | 3 hr |
| Aug 27, 6:11 PM EDT | Mesoscale Discussion | SPC | Ashland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 12 more | 64 min |
| Aug 27, 6:42 PM EDT | Severe Thunderstorm Watch | SPC | Ashtabula, Cuyahoga, Erie, Geauga, Hancock, Huron and 7 more | 3 hr |
Nearby
Mesoscale Discussions in Indiana, 2024Mesoscale Discussions in Ohio, 2024Mesoscale Discussions in Michigan, 2024Every mesoscale discussion in 2024
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.