Alert archive / Michigan / Mesoscale Discussions in 2007
Mesoscale Discussion 1441
The Storm Prediction Center issued this mesoscale discussion at Jul 10, 2007, 1:55 PM EDT for 26 counties in Michigan. It was in force for 95 min.
The area
The outline as issued.
The facts
- Issued
- Jul 10, 2007, 1:55 PM EDT (17:55 UTC)
- Expired
- Jul 10, 2007, 3:30 PM EDT
- In force
- 95 min
- Issued by
- the Storm Prediction Center
All 26 counties
Antrim County, MI, Charlevoix County, MI, Cheboygan County, MI, Clare County, MI, Crawford County, MI, Emmet County, MI, Gladwin County, MI, Grand Traverse County, MI, Gratiot County, MI, Ionia County, MI, Isabella County, MI, Kalkaska County, MI, Kent County, MI, Lake County, MI, Mecosta County, MI, Midland County, MI, Missaukee County, MI, Montcalm County, MI, Montmorency County, MI, Newaygo County, MI, Ogemaw County, MI, Osceola County, MI, Oscoda County, MI, Otsego County, MI, Roscommon County, MI, Wexford County, MI
The radar
The NCL Michigan radar (KAPX), 31 km from the middle of the area, began a volume at 17:58 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
Alpena, MI (KAPX), launched 12:00Z, 5.9 hours before the alert went out and 200 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1133 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 137 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 10, 11:29 AM EDT | Mesoscale Discussion | SPC | Alger, Baraga, Delta, Dickinson, Gogebic, Iron and 3 more | 91 min |
| Jul 10, 12:55 PM EDT | Tornado Watch | SPC | Alger, Baraga, Delta, Dickinson, Gogebic, Houghton and 6 more | 5 hr |
| Jul 10, 3:29 PM EDT | Mesoscale Discussion | SPC | Alger, Delta, Menominee, Schoolcraft | 91 min |
| Jul 10, 3:54 PM EDT | Severe Thunderstorm Watch | SPC | Alcona, Allegan, Alpena, Antrim, Arenac, Bay and 45 more | 7 hr |
Nearby
Mesoscale Discussions in Michigan, 2007Every mesoscale discussion in 2007
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.