Alert archive / Indiana / Mesoscale Discussions in 2014
Mesoscale Discussion 1744
The Storm Prediction Center issued this mesoscale discussion at Sep 20, 2014, 5:19 PM CDT for Ford County, Iroquois County, Illinois; 19 counties in Indiana; Branch County, Michigan. It was in force for 56 min.
The area
The outline as issued.
The facts
- Issued
- Sep 20, 2014, 5:19 PM CDT (22:19 UTC)
- Expired
- Sep 20, 2014, 6:15 PM CDT
- In force
- 56 min
- Issued by
- the Storm Prediction Center
All 22 counties
Ford County, IL, Iroquois County, IL, Allen County, IN, Benton County, IN, Cass County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Jasper County, IN, Kosciusko County, IN, LaGrange County, IN, Marshall County, IN, Miami County, IN, Newton County, IN, Noble County, IN, Pulaski County, IN, Starke County, IN, Steuben County, IN, Wabash County, IN, White County, IN, Whitley County, IN, Branch County, MI
The radar
The Northern Indiana radar (KIWX), 70 km from the middle of the area, began a volume at 22:20 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 nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 10.3 hours before the alert went out and 209 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
- 46 J/kg
- Mixed-layer CIN
- -295 J/kg
- Mixed-layer LCL
- 792 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 107 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 20, 1:25 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Cass, Cook, DeKalb, DeWitt and 33 more | 95 min |
| Sep 20, 2:12 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Cass, DeWitt, Ford, Fulton, Grundy and 24 more | 5 hr |
| Sep 20, 4:22 PM CDT | Mesoscale Discussion | SPC | Champaign, Christian, Clark, Coles, Cumberland, Douglas and 12 more | 113 min |
| Sep 20, 6:56 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Cass, DeWitt, Fulton and 26 more | 2 hr |
| Sep 20, 5:00 PM CDT | Mesoscale Discussion | SPC | Genesee, Ingham, Lapeer, Livingston, Oakland, Saint Clair and 3 more | 2 hr |
| Sep 20, 5:19 PM CDT | Severe Thunderstorm Watch | SPC | Genesee, Huron, Lapeer, Lenawee, Livingston, Macomb and 8 more | 4 hr |
Nearby
Mesoscale Discussions in Indiana, 2014Mesoscale Discussions in Illinois, 2014Mesoscale Discussions in Michigan, 2014Every mesoscale discussion in 2014
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.