Alert archive / Michigan / Severe Thunderstorm Watches in 2007
Severe Thunderstorm Watch 491
The Storm Prediction Center issued this severe thunderstorm watch at Jul 8, 2007, 4:37 AM EDT for 27 counties in Michigan. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 8, 2007, 4:37 AM EDT (08:37 UTC)
- Expired
- Jul 8, 2007, 11:00 AM EDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 3 in
- Strongest gust expected
- 60 kt
All 27 counties
Alger County, MI, Antrim County, MI, Baraga County, MI, Benzie County, MI, Charlevoix County, MI, Cheboygan County, MI, Chippewa County, MI, Crawford County, MI, Delta County, MI, Dickinson County, MI, Emmet County, MI, Grand Traverse County, MI, Houghton County, MI, Iron County, MI, Kalkaska County, MI, Keweenaw County, MI, Leelanau County, MI, Luce County, MI, Mackinac County, MI, Manistee County, MI, Marquette County, MI, Menominee County, MI, Missaukee County, MI, Otsego County, MI, Presque Isle County, MI, Schoolcraft County, MI, Wexford County, MI
The radar
The Marquette radar (KMQT), 57 km from the middle of the area, began a volume at 08:37 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 5%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 60%
- One or more hailstones of 2 inches or more
- 50%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
15 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 4:40 AM EDT | Severe Thunderstorm Warning | MQT | Iron | 50 min |
| Jul 8, 5:05 AM EDT | Severe Thunderstorm Warning | MQT | Houghton | 25 min |
| Jul 8, 5:15 AM EDT | Severe Thunderstorm Warning | MQT | Baraga | 60 min |
| Jul 8, 5:32 AM EDT | Severe Thunderstorm Warning | MQT | Houghton | 43 min |
| Jul 8, 5:39 AM EDT | Severe Thunderstorm Warning | MQT | Marquette | 81 min |
| Jul 8, 5:43 AM EDT | Severe Thunderstorm Warning | MQT | Keweenaw | 47 min |
| Jul 8, 5:49 AM EDT | Severe Thunderstorm Warning | MQT | Baraga | 41 min |
| Jul 8, 6:07 AM EDT | Severe Thunderstorm Warning | MQT | Delta, Marquette | 53 min |
| Jul 8, 6:37 AM EDT | Severe Thunderstorm Warning | MQT | Marquette | 53 min |
| Jul 8, 7:05 AM EDT | Severe Thunderstorm Warning | MQT | Delta | 40 min |
| Jul 8, 7:14 AM EDT | Severe Thunderstorm Warning | MQT | Alger | 61 min |
| Jul 8, 7:28 AM EDT | Severe Thunderstorm Warning | MQT | Marquette | 32 min |
| Jul 8, 7:52 AM EDT | Severe Thunderstorm Warning | MQT | Delta, Schoolcraft | 53 min |
| Jul 8, 8:24 AM EDT | Severe Thunderstorm Warning | APX | Antrim, Charlevoix | 66 min |
| Jul 8, 10:54 AM EDT | Severe Thunderstorm Warning | MQT | Luce | 51 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 4:14 AM EDT | Mesoscale Discussion | SPC | Alger, Baraga, Delta, Dickinson, Gogebic, Houghton and 6 more | 2 hr |
| Jul 8, 7:48 AM EDT | Mesoscale Discussion | SPC | Alger, Benzie, Charlevoix, Cheboygan, Chippewa, Delta and 8 more | 87 min |
| Jul 8, 2:05 PM EDT | Mesoscale Discussion | SPC | Baraga, Dickinson, Gogebic, Iron, Marquette | 55 min |
| Jul 8, 2:28 PM EDT | Severe Thunderstorm Watch | SPC | Alger, Baraga, Delta, Dickinson, Gogebic, Houghton and 6 more | 8 hr |
| Jul 8, 3:21 PM EDT | Mesoscale Discussion | SPC | Alcona, Alpena, Antrim, Arenac, Charlevoix, Cheboygan and 17 more | 84 min |
| Jul 8, 5:00 PM EDT | Mesoscale Discussion | SPC | Alger, Delta, Dickinson, Iron, Menominee, Schoolcraft | 60 min |
| Jul 8, 6:12 PM EDT | Mesoscale Discussion | SPC | Alcona, Alpena, Antrim, Arenac, Benzie, Charlevoix and 22 more | 63 min |
| Jul 8, 6:23 PM EDT | Severe Thunderstorm Watch | SPC | Alcona, Alpena, Antrim, Arenac, Benzie, Charlevoix and 19 more | 4 hr |
| Jul 8, 7:40 PM EDT | Mesoscale Discussion | SPC | Alger, Delta, Dickinson, Luce, Mackinac, Menominee and 1 more | 65 min |
Nearby
Severe Thunderstorm Watches in Michigan, 2007Every severe thunderstorm watch 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; radar from the NEXRAD Level II archive.