Alert archive / Michigan / Tornado Watches in 2007
Tornado Watch 364
The Storm Prediction Center issued this tornado watch at Jun 7, 2007, 11:54 PM EDT for 25 counties in Michigan. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 7, 2007, 11:54 PM EDT (03:54 UTC)
- Expired
- Jun 8, 2007, 5:12 AM EDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 70 kt
All 25 counties
Alcona County, MI, Alpena County, MI, Antrim County, MI, Arenac County, MI, Benzie County, MI, Charlevoix County, MI, Cheboygan County, MI, Chippewa County, MI, Crawford County, MI, Emmet County, MI, Gladwin County, MI, Grand Traverse County, MI, Iosco County, MI, Kalkaska County, MI, Leelanau County, MI, Mackinac County, MI, Manistee County, MI, Missaukee County, MI, Montmorency County, MI, Ogemaw County, MI, Oscoda County, MI, Otsego County, MI, Presque Isle County, MI, Roscommon County, MI, Wexford County, MI
The radar
The NCL Michigan radar (KAPX), 65 km from the middle of the area, began a volume at 03:58 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
- 30%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 50%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 12:31 AM EDT | Severe Thunderstorm Warning | APX | Manistee | 59 min |
| Jun 8, 12:56 AM EDT | Severe Thunderstorm Warning | APX | Wexford | 63 min |
| Jun 8, 1:02 AM EDT | Severe Thunderstorm Warning | APX | Grand Traverse | 58 min |
| Jun 8, 1:18 AM EDT | Severe Thunderstorm Warning | APX | Kalkaska, Missaukee | 57 min |
| Jun 8, 1:48 AM EDT | Severe Thunderstorm Warning | APX | Crawford, Roscommon | 58 min |
| Jun 8, 2:12 AM EDT | Severe Thunderstorm Warning | APX | Oscoda | 63 min |
| Jun 8, 2:47 AM EDT | Severe Thunderstorm Warning | APX | Presque Isle | 38 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
Alpena, MI (KAPX), launched 00:00Z, 3.9 hours before the alert went out and 219 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
- 523 J/kg
- Mixed-layer CIN
- -139 J/kg
- Mixed-layer LCL
- 1750 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 173 m²/s²
- 0-3 km storm-relative helicity
- 327 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.2
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 10:23 PM EDT | Mesoscale Discussion | SPC | Dickinson, Gogebic, Iron, Menominee | 97 min |
| Jun 7, 10:48 PM EDT | Mesoscale Discussion | SPC | Allegan, Barry, Benzie, Berrien, Cass, Clare and 20 more | 87 min |
| Jun 7, 11:14 PM EDT | Tornado Watch | SPC | Allegan, Berrien, Clare, Isabella, Kent, Lake and 9 more | 7 hr |
| Jun 8, 3:59 AM EDT | Mesoscale Discussion | SPC | Allegan, Alpena, Clare, Crawford, Gladwin, Isabella and 13 more | 61 min |
| Jun 8, 11:07 AM EDT | Mesoscale Discussion | SPC | Branch, Calhoun, Clinton, Eaton, Genesee, Hillsdale and 13 more | 53 min |
| Jun 8, 11:43 AM EDT | Severe Thunderstorm Watch | SPC | Branch, Genesee, Hillsdale, Ingham, Jackson, Lapeer and 11 more | 7 hr |
| Jun 8, 12:40 PM EDT | Mesoscale Discussion | SPC | Genesee, Hillsdale, Jackson, Lapeer, Lenawee, Livingston and 8 more | 65 min |
Nearby
Tornado Watches in Michigan, 2007Every tornado 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.