Alert archive / Michigan / Mesoscale Discussions in 2004
Mesoscale Discussion 1271
The Storm Prediction Center issued this mesoscale discussion at Jun 14, 2004, 4:28 PM EDT for 37 counties in Michigan. It was in force for 92 min.
The area
The outline as issued.
The facts
- Issued
- Jun 14, 2004, 4:28 PM EDT (20:28 UTC)
- Expired
- Jun 14, 2004, 6:00 PM EDT
- In force
- 92 min
- Issued by
- the Storm Prediction Center
All 37 counties
Alcona County, MI, Alpena County, MI, Antrim County, MI, Arenac County, MI, Bay County, MI, Benzie County, MI, Cheboygan County, MI, Clare County, MI, Crawford County, MI, Genesee County, MI, Gladwin County, MI, Grand Traverse County, MI, Gratiot County, MI, Huron County, MI, Iosco County, MI, Isabella County, MI, Kalkaska County, MI, Lake County, MI, Lapeer County, MI, Leelanau County, MI, Mecosta County, MI, Midland County, MI, Missaukee County, MI, Montmorency County, MI, Newaygo County, MI, Ogemaw County, MI, Osceola County, MI, Oscoda County, MI, Otsego County, MI, Presque Isle County, MI, Roscommon County, MI, Saginaw County, MI, Saint Clair County, MI, Sanilac County, MI, Shiawassee County, MI, Tuscola County, MI, Wexford County, MI
The radar
The NCL Michigan radar (KAPX), 117 km from the middle of the area, began a volume at 20:28 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
Detroit, MI (KDTX), launched 12:00Z, 8.5 hours before the alert went out and 163 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
- 338 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 1019 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 83 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 |
|---|---|---|---|---|
| Jun 13, 8:30 PM EDT | Mesoscale Discussion | SPC | Monroe | 90 min |
| Jun 14, 10:06 AM EDT | Mesoscale Discussion | SPC | Berrien, Branch, Calhoun, Cass, Hillsdale, Jackson and 7 more | 54 min |
| Jun 14, 10:40 AM EDT | Severe Thunderstorm Watch | SPC | Berrien, Branch, Calhoun, Cass, Hillsdale, Jackson and 8 more | 7 hr |
| Jun 14, 11:22 AM EDT | Mesoscale Discussion | SPC | Branch, Calhoun, Cass, Hillsdale, Jackson, Kalamazoo and 9 more | 53 min |
| Jun 14, 11:51 AM EDT | Mesoscale Discussion | SPC | Arenac, Bay, Cheboygan, Clare, Crawford, Genesee and 21 more | 84 min |
| Jun 14, 12:25 PM EDT | Severe Thunderstorm Watch | SPC | Alcona, Alpena, Antrim, Arenac, Barry, Bay and 42 more | 8 hr |
| Jun 14, 1:29 PM EDT | Mesoscale Discussion | SPC | Alcona, Alpena, Antrim, Arenac, Barry, Bay and 52 more | 91 min |
Nearby
Mesoscale Discussions in Michigan, 2004Every mesoscale discussion in 2004
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.