Alert archive / Indiana / Mesoscale Discussions in 2017
Mesoscale Discussion 204
The Storm Prediction Center issued this mesoscale discussion at Feb 24, 2017, 2:07 PM CST for 4 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 24, 2017, 2:07 PM CST (20:07 UTC)
- Expired
- Feb 24, 2017, 4:30 PM CST
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 66 counties
Clark County, IL, Crawford County, IL, Cumberland County, IL, Edgar 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, DeKalb County, IN, Elkhart County, IN, Fountain County, IN, Fulton County, IN, Grant County, IN, Hamilton County, IN, Hendricks County, IN, Howard County, IN, Huntington County, IN, Jasper County, IN, Kosciusko County, IN, LaGrange County, IN, LaPorte County, IN, Madison County, IN, Marshall County, IN, Miami County, IN, Montgomery 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, Calhoun County, MI, Cass County, MI, Hillsdale County, MI, Ingham County, MI, Jackson County, MI, Kalamazoo County, MI, Lenawee County, MI, Saint Joseph County, MI, Washtenaw County, MI, Defiance County, OH, Fulton County, OH, Paulding County, OH, Williams County, OH
The radar
The Northern Indiana radar (KIWX), 78 km from the middle of the area, began a volume at 20:08 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
Lincoln, IL (KILX), launched 12:00Z, 8.1 hours before the alert went out and 213 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
- 109 J/kg
- Mixed-layer CIN
- -391 J/kg
- Mixed-layer LCL
- 1088 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 242 m²/s²
- 0-3 km storm-relative helicity
- 316 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Feb 23, 9:48 PM CST | Mesoscale Discussion | SPC | Henderson | 2 hr |
| Feb 24, 2:44 PM CST | Severe Thunderstorm Watch | SPC | Adams, Allen, Bartholomew, Blackford, Boone, Brown and 52 more | 6 hr |
| Feb 24, 4:56 PM CST | Mesoscale Discussion | SPC | Adams, Allen, Bartholomew, Blackford, Boone, Brown and 46 more | 94 min |
| Feb 24, 5:28 PM CST | Mesoscale Discussion | SPC | Clark, Floyd, Harrison, Jefferson, Scott, Switzerland | 62 min |
| Feb 24, 5:36 PM CST | Severe Thunderstorm Watch | SPC | Clark, Dearborn, Fayette, Franklin, Jefferson, Ohio and 4 more | 6 hr |
| Feb 24, 1:45 PM CST | Mesoscale Discussion | SPC | Lenawee, Monroe, Washtenaw, Wayne | 60 min |
| Feb 24, 5:03 PM CST | Mesoscale Discussion | SPC | Alcona, Alpena, Arenac, Bay, Clare, Crawford and 17 more | 87 min |
Nearby
Mesoscale Discussions in Indiana, 2017Mesoscale Discussions in Michigan, 2017Mesoscale Discussions in Illinois, 2017Every mesoscale discussion in 2017
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.