Alert archive / Michigan / Severe Thunderstorm Watches in 2007
Severe Thunderstorm Watch 507
The Storm Prediction Center issued this severe thunderstorm watch at Jul 10, 2007, 3:54 PM EDT for 51 counties in Michigan. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 10, 2007, 3:54 PM EDT (19:54 UTC)
- Expired
- Jul 10, 2007, 11:00 PM EDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 51 counties
Alcona County, MI, Allegan County, MI, Alpena County, MI, Antrim County, MI, Arenac County, MI, Bay County, MI, Benzie County, MI, Charlevoix County, MI, Cheboygan County, MI, Chippewa County, MI, Clare County, MI, Clinton County, MI, Crawford County, MI, Emmet County, MI, Genesee County, MI, Gladwin County, MI, Grand Traverse County, MI, Gratiot County, MI, Huron County, MI, Ionia County, MI, Iosco County, MI, Isabella County, MI, Kalkaska County, MI, Kent County, MI, Lake County, MI, Lapeer County, MI, Leelanau County, MI, Mackinac County, MI, Manistee County, MI, Mason County, MI, Mecosta County, MI, Midland County, MI, Missaukee County, MI, Montcalm County, MI, Montmorency County, MI, Muskegon County, MI, Newaygo County, MI, Oceana County, MI, Ogemaw County, MI, Osceola County, MI, Oscoda County, MI, Otsego County, MI, Ottawa County, MI, Presque Isle County, MI, Roscommon County, MI, Saginaw County, MI, Sanilac County, MI, Shiawassee County, MI, Tuscola County, MI, Van Buren County, MI, Wexford County, MI
The radar
The NCL Michigan radar (KAPX), 32 km from the middle of the area, began a volume at 19:57 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
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 40%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 10%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 4:09 PM EDT | Severe Thunderstorm Warning | APX | Cheboygan, Emmet | 66 min |
| Jul 10, 4:46 PM EDT | Severe Thunderstorm Warning | APX | Antrim | 20 min |
| Jul 10, 4:49 PM EDT | Tornado Warning | APX | Cheboygan, Presque Isle | 41 min |
| Jul 10, 4:57 PM EDT | Severe Thunderstorm Warning | APX | Otsego | 46 min |
| Jul 10, 6:05 PM EDT | Severe Thunderstorm Warning | APX | Alpena | 20 min |
| Jul 10, 6:21 PM EDT | Severe Thunderstorm Warning | DTX | Shiawassee | 69 min |
| Jul 10, 6:22 PM EDT | Severe Thunderstorm Warning | APX | Presque Isle | 17 min |
| Jul 10, 6:55 PM EDT | Severe Thunderstorm Warning | DTX | Genesee | 80 min |
| Jul 10, 7:28 PM EDT | Severe Thunderstorm Warning | DTX | Lapeer | 62 min |
| Jul 10, 7:45 PM EDT | Severe Thunderstorm Warning | DTX | Shiawassee | 24 min |
| Jul 10, 8:08 PM EDT | Severe Thunderstorm Warning | DTX | Sanilac | 53 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 10, 11:29 AM EDT | Mesoscale Discussion | SPC | Alger, Baraga, Delta, Dickinson, Gogebic, Iron and 3 more | 91 min |
| Jul 10, 12:55 PM EDT | Tornado Watch | SPC | Alger, Baraga, Delta, Dickinson, Gogebic, Houghton and 6 more | 5 hr |
| Jul 10, 1:55 PM EDT | Mesoscale Discussion | SPC | Antrim, Charlevoix, Cheboygan, Clare, Crawford, Emmet and 20 more | 95 min |
| Jul 10, 3:29 PM EDT | Mesoscale Discussion | SPC | Alger, Delta, Menominee, Schoolcraft | 91 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.