Alert archive / Michigan / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 82
The Storm Prediction Center issued this severe thunderstorm watch at Mar 28, 2003, 6:00 PM EST for 13 counties in Michigan. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 28, 2003, 6:00 PM EST (23:00 UTC)
- Expired
- Mar 28, 2003, 10:00 PM EST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
Counties Genesee County, MI, Huron County, MI, Lapeer County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Monroe County, MI, Oakland County, MI, Saint Clair County, MI, Sanilac County, MI, Tuscola County, MI, Washtenaw County, MI, Wayne County, MI
The radar
The Detroit radar (KDTX), 28 km from the middle of the area, began a volume at 22:59 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
4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 6:14 PM EST | Severe Thunderstorm Warning | DTX | Genesee | 31 min |
| Mar 28, 6:17 PM EST | Severe Thunderstorm Warning | DTX | Wayne | 43 min |
| Mar 28, 6:23 PM EST | Severe Thunderstorm Warning | DTX | Lapeer | 22 min |
| Mar 28, 7:30 PM EST | Severe Thunderstorm Warning | DTX | Wayne | 45 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, 11.0 hours before the alert went out and 26 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
- 1115 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 416 m²/s²
- 0-3 km storm-relative helicity
- 436 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 8:35 AM EST | Mesoscale Discussion | SPC | Berrien, Branch, Calhoun, Cass, Hillsdale, Kalamazoo and 1 more | 3 hr |
| Mar 28, 11:22 AM EST | Mesoscale Discussion | SPC | Allegan, Barry, Berrien, Cass, Kalamazoo, Saint Joseph and 1 more | 113 min |
| Mar 28, 12:54 PM EST | Mesoscale Discussion | SPC | Arenac, Barry, Bay, Branch, Calhoun, Clare and 30 more | 2 hr |
| Mar 28, 1:20 PM EST | Severe Thunderstorm Watch | SPC | Arenac, Barry, Bay, Branch, Calhoun, Cass and 25 more | 6 hr |
| Mar 28, 3:57 PM EST | Mesoscale Discussion | SPC | Arenac, Barry, Bay, Branch, Calhoun, Clare and 28 more | 2 hr |
| Mar 28, 5:58 PM EST | Mesoscale Discussion | SPC | Arenac, Bay, Calhoun, Clinton, Eaton, Genesee and 21 more | 92 min |
Nearby
Severe Thunderstorm Watches in Michigan, 2003Every severe thunderstorm watch in 2003
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.