Alert archive / Michigan / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 787
The Storm Prediction Center issued this severe thunderstorm watch at Sep 13, 2005, 8:15 PM EDT for 15 counties in Michigan. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 13, 2005, 8:15 PM EDT (00:15 UTC)
- Expired
- Sep 13, 2005, 11:11 PM EDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
Counties Antrim County, MI, Benzie County, MI, Charlevoix County, MI, Cheboygan County, MI, Emmet County, MI, Grand Traverse County, MI, Kalkaska County, MI, Lake County, MI, Leelanau County, MI, Manistee County, MI, Mason County, MI, Missaukee County, MI, Osceola County, MI, Otsego County, MI, Wexford County, MI
The radar
The NCL Michigan radar (KAPX), 83 km from the middle of the area, began a volume at 00:16 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
6 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 13, 8:21 PM EDT | Severe Thunderstorm Warning | APX | Benzie, Leelanau, Manistee | 39 min |
| Sep 13, 8:57 PM EDT | Severe Thunderstorm Warning | APX | Charlevoix, Leelanau | 48 min |
| Sep 13, 9:02 PM EDT | Severe Thunderstorm Warning | APX | Benzie, Leelanau, Manistee, Wexford | 28 min |
| Sep 13, 9:03 PM EDT | Severe Thunderstorm Warning | GRR | Lake | 42 min |
| Sep 13, 9:18 PM EDT | Severe Thunderstorm Warning | APX | Antrim, Charlevoix, Emmet, Grand Traverse, Kalkaska | 57 min |
| Sep 13, 9:53 PM EDT | Severe Thunderstorm Warning | APX | Cheboygan, Crawford, Otsego | 53 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
Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.3 hours before the alert went out and 193 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
- 73 J/kg
- Mixed-layer CIN
- -220 J/kg
- Mixed-layer LCL
- 846 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- -268 m²/s²
- 0-3 km storm-relative helicity
- -205 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 13, 10:13 PM EDT | Mesoscale Discussion | SPC | Alcona, Alpena, Cheboygan, Chippewa, Crawford, Emmet and 7 more | 92 min |
Nearby
Severe Thunderstorm Watches in Michigan, 2005Every severe thunderstorm watch in 2005
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.