Alert archive / Michigan / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 355
The Storm Prediction Center issued this severe thunderstorm watch at May 31, 2004, 2:20 PM EDT for 49 counties in Michigan. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- May 31, 2004, 2:20 PM EDT (18:20 UTC)
- Expired
- May 31, 2004, 6:00 PM EDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 49 counties
Alcona County, MI, Alpena County, MI, Antrim County, MI, Arenac County, MI, Bay County, MI, Charlevoix County, MI, Cheboygan County, MI, Clare County, MI, Clinton County, MI, Crawford County, MI, Eaton County, MI, Emmet County, MI, Genesee County, MI, Gladwin County, MI, Grand Traverse County, MI, Gratiot County, MI, Hillsdale County, MI, Huron County, MI, Ingham County, MI, Ionia County, MI, Iosco County, MI, Isabella County, MI, Jackson County, MI, Kalkaska County, MI, Lapeer County, MI, Leelanau County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Mecosta County, MI, Midland County, MI, Missaukee County, MI, Monroe County, MI, Montcalm County, MI, Montmorency County, MI, Oakland 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, Shiawassee County, MI, Tuscola County, MI, Washtenaw County, MI, Wayne County, MI, Wexford County, MI
The radar
The NCL Michigan radar (KAPX), 102 km from the middle of the area, began a volume at 18:19 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.
Warnings issued inside it
3 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 4:36 PM EDT | Severe Thunderstorm Warning | DTX | Genesee, Lapeer, Tuscola | 54 min |
| May 31, 4:37 PM EDT | Severe Thunderstorm Warning | DTX | Genesee | 53 min |
| May 31, 4:38 PM EDT | Severe Thunderstorm Warning | DTX | Genesee | 52 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 6.3 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 473 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- -109 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 |
|---|---|---|---|---|
| May 30, 8:18 PM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Clinton, Eaton, Ingham, Ionia and 12 more | 87 min |
| May 31, 1:50 PM EDT | Mesoscale Discussion | SPC | Allegan, Antrim, Arenac, Barry, Bay, Benzie and 43 more | 55 min |
| May 31, 4:49 PM EDT | Mesoscale Discussion | SPC | Alcona, Alpena, Antrim, Arenac, Bay, Charlevoix and 42 more | 56 min |
Nearby
Severe Thunderstorm Watches in Michigan, 2004Every severe thunderstorm watch 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.