Alert archive / Indiana / Mesoscale Discussions in 2017
Mesoscale Discussion 222
The Storm Prediction Center issued this mesoscale discussion at Feb 28, 2017, 7:00 PM EST for 20 counties in Indiana; 9 counties in Michigan; 10 counties in Ohio. It was in force for 90 min.
The area
The outline as issued.
The facts
- Issued
- Feb 28, 2017, 7:00 PM EST (00:00 UTC)
- Expired
- Feb 28, 2017, 8:30 PM EST
- In force
- 90 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 39 counties
Adams County, IN, Allen County, IN, Cass County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Howard County, IN, Huntington County, IN, Kosciusko County, IN, LaGrange County, IN, LaPorte 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, Calhoun County, MI, Cass County, MI, Hillsdale County, MI, Jackson County, MI, Kalamazoo County, MI, Lenawee County, MI, Monroe County, MI, Saint Joseph County, MI, Defiance County, OH, Fulton County, OH, Hancock 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), 55 km from the middle of the area, began a volume at 00:04 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 00:00Z, 0.0 hours before the alert went out and 189 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
- 8 J/kg
- Mixed-layer CIN
- -323 J/kg
- Mixed-layer LCL
- 464 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 384 m²/s²
- 0-3 km storm-relative helicity
- 383 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 28, 7:37 PM EST | Severe Thunderstorm Watch | SPC | Allen, DeKalb, Elkhart, Fulton, Kosciusko, LaGrange and 8 more | 8 hr |
| Feb 28, 8:46 PM EST | Mesoscale Discussion | SPC | Brown, Crawford, Daviess, Dubois, Gibson, Greene and 14 more | 119 min |
| Feb 28, 9:29 PM EST | Tornado Watch | SPC | Bartholomew, Brown, Clark, Clay, Crawford, Daviess and 34 more | 12 hr |
| Feb 28, 9:41 PM EST | Mesoscale Discussion | SPC | Allen, DeKalb, Elkhart, Fulton, Kosciusko, LaGrange and 9 more | 94 min |
| Feb 28, 10:51 PM EST | Tornado Watch | SPC | Benton, Jasper, Lake, Newton, Porter | 6 hr |
| Feb 28, 11:03 PM EST | Mesoscale Discussion | SPC | Adams, Allen, Bartholomew, Blackford, Boone, Carroll and 48 more | 117 min |
| Feb 28, 11:09 PM EST | Mesoscale Discussion | SPC | Crawford, Daviess, Dubois, Gibson, Knox, Lawrence and 6 more | 66 min |
| Feb 28, 11:29 PM EST | Tornado Watch | SPC | Adams, Allen, Blackford, Boone, Carroll, Cass and 41 more | 8 hr |
| Mar 1, 12:52 AM EST | Mesoscale Discussion | SPC | Benton, Elkhart, Fulton, Jasper, LaPorte, Marshall and 7 more | 53 min |
| Mar 1, 1:44 AM EST | Mesoscale Discussion | SPC | Adams, Allen, Blackford, Boone, Carroll, Cass and 28 more | 61 min |
| Mar 1, 2:32 AM EST | Mesoscale Discussion | SPC | Clark, Crawford, Dearborn, Dubois, Floyd, Harrison and 11 more | 88 min |
| Mar 1, 4:03 AM EST | Tornado Watch | SPC | Gibson, Pike, Posey, Spencer, Vanderburgh, Warrick | 5 hr |
| Mar 1, 5:19 AM EST | Mesoscale Discussion | SPC | Harrison, Perry, Posey, Spencer, Vanderburgh, Warrick | 56 min |
| Mar 1, 5:57 AM EST | Tornado Watch | SPC | Clark, Crawford, Dearborn, Dubois, Floyd, Franklin and 9 more | 5 hr |
| Mar 1, 2:19 AM EST | Mesoscale Discussion | SPC | Ashland, Ashtabula, Belmont, Carroll, Columbiana, Coshocton and 22 more | 86 min |
| Mar 1, 3:24 AM EST | Severe Thunderstorm Watch | SPC | Ashland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 22 more | 4 hr |
| Mar 1, 6:28 AM EST | Mesoscale Discussion | SPC | Adams, Gallia, Lawrence, Scioto | 2 hr |
| Mar 1, 6:48 AM EST | Severe Thunderstorm Watch | SPC | Athens, Gallia, Jackson, Lawrence, Meigs, Morgan and 3 more | 5 hr |
| Mar 1, 8:28 AM EST | Mesoscale Discussion | SPC | Gallia, Lawrence | 92 min |
| Mar 1, 3:56 PM EST | Mesoscale Discussion | SPC | Athens, Belmont, Carroll, Columbiana, Coshocton, Fairfield and 26 more | 2 hr |
Nearby
Mesoscale Discussions in Indiana, 2017Mesoscale Discussions in Ohio, 2017Mesoscale Discussions in Michigan, 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.