Alert archive / Michigan / Mesoscale Discussions in 2006
Mesoscale Discussion 1539
The Storm Prediction Center issued this mesoscale discussion at Jul 17, 2006, 6:01 PM EDT for 22 counties in Michigan. It was in force for 59 min.
The area
The outline as issued.
The facts
- Issued
- Jul 17, 2006, 6:01 PM EDT (22:01 UTC)
- Expired
- Jul 17, 2006, 7:00 PM EDT
- In force
- 59 min
- Issued by
- the Storm Prediction Center
All 22 counties
Barry County, MI, Bay County, MI, Calhoun County, MI, Clinton County, MI, Eaton County, MI, Genesee County, MI, Gratiot County, MI, Ingham County, MI, Ionia County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Lapeer County, MI, Livingston County, MI, Midland County, MI, Montcalm County, MI, Oakland County, MI, Saginaw County, MI, Shiawassee County, MI, Tuscola County, MI, Washtenaw County, MI, Wayne County, MI
The radar
The Detroit radar (KDTX), 71 km from the middle of the area, began a volume at 22:00 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, 10.0 hours before the alert went out and 74 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
- 165 J/kg
- Mixed-layer CIN
- -516 J/kg
- Mixed-layer LCL
- 1869 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- -38 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 |
|---|---|---|---|---|
| Jul 17, 4:47 AM EDT | Mesoscale Discussion | SPC | Baraga, Gogebic, Houghton, Ontonagon | 88 min |
| Jul 17, 1:09 PM EDT | Mesoscale Discussion | SPC | Alger, Antrim, Benzie, Charlevoix, Cheboygan, Chippewa and 10 more | 2 hr |
| Jul 17, 2:51 PM EDT | Severe Thunderstorm Watch | SPC | Alcona, Alpena, Antrim, Arenac, Benzie, Charlevoix and 28 more | 8 hr |
| Jul 17, 6:10 PM EDT | Severe Thunderstorm Watch | SPC | Bay, Genesee, Huron, Lapeer, Livingston, Macomb and 7 more | 6 hr |
| Jul 17, 6:34 PM EDT | Mesoscale Discussion | SPC | Alcona, Allegan, Arenac, Barry, Bay, Berrien and 29 more | 86 min |
Nearby
Mesoscale Discussions in Michigan, 2006Every mesoscale discussion in 2006
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.