Alert archive / Michigan / Tornado Watches in 2024
Tornado Watch 604
The Storm Prediction Center issued this tornado watch at Aug 6, 2024, 8:04 AM EDT for Steuben County, Indiana; 9 counties in Michigan; 8 counties in Ohio. It was in force for 9 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 6, 2024, 8:04 AM EDT (12:04 UTC)
- Expired
- Aug 6, 2024, 4:44 PM EDT
- In force
- 9 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
Counties Steuben County, IN, Branch County, MI, Calhoun County, MI, Cass County, MI, Hillsdale County, MI, Jackson County, MI, Kalamazoo County, MI, Lenawee County, MI, Monroe County, MI, Saint Joseph County, MI, Fulton County, OH, Henry County, OH, Lucas County, OH, Ottawa County, OH, Sandusky County, OH, Seneca County, OH, Williams County, OH, Wood County, OH
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 40%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 60%
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 |
|---|---|---|---|---|
| Aug 6, 8:10 AM EDT | Tornado Warning | GRR | Kalamazoo | 23 min |
| Aug 6, 8:19 AM EDT | Tornado Warning | IWX | Branch, Cass, Saint Joseph | 41 min |
| Aug 6, 8:57 AM EDT | Severe Thunderstorm Warning | IWX | Steuben | 48 min |
| Aug 6, 9:34 AM EDT | Severe Thunderstorm Warning | IWX | Steuben | 41 min |
| Aug 6, 9:44 AM EDT | Tornado Warning | IWX | Steuben | 31 min |
| Aug 6, 10:05 AM EDT | Severe Thunderstorm Warning | IWX | Hillsdale | 40 min |
| Aug 6, 10:41 AM EDT | Severe Thunderstorm Warning | IWX | Fulton, Henry, Williams | 49 min |
| Aug 6, 2:04 PM EDT | Severe Thunderstorm Warning | IWX | Defiance, Fulton, Henry, Williams | 41 min |
| Aug 6, 2:41 PM EDT | Severe Thunderstorm Warning | IWX | Henry | 34 min |
| Aug 6, 2:43 PM EDT | Severe Thunderstorm Warning | CLE | Lucas, Wood | 62 min |
| Aug 6, 2:56 PM EDT | Severe Thunderstorm Warning | IWX | Defiance, Henry | 34 min |
| Aug 6, 3:03 PM EDT | Severe Thunderstorm Warning | IWX | Henry, Putnam | 42 min |
| Aug 6, 3:04 PM EDT | Tornado Warning | CLE | Hancock, Wood | 41 min |
| Aug 6, 3:21 PM EDT | Severe Thunderstorm Warning | CLE | Hancock, Sandusky, Seneca, Wood | 54 min |
| Aug 6, 3:59 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Hancock, Sandusky, Seneca, Wyandot | 61 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, 0.1 hours before the alert went out and 130 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
- 687 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 191 m²/s²
- 0-3 km storm-relative helicity
- 351 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 |
|---|---|---|---|---|
| Aug 6, 7:31 AM EDT | Mesoscale Discussion | SPC | DeKalb, Elkhart, LaGrange, Steuben | 119 min |
| Aug 6, 3:26 AM EDT | Mesoscale Discussion | SPC | Allegan, Van Buren | 2 hr |
| Aug 6, 10:59 AM EDT | Mesoscale Discussion | SPC | Columbiana, Cuyahoga, Erie, Geauga, Huron, Lorain and 6 more | 91 min |
| Aug 6, 11:42 AM EDT | Severe Thunderstorm Watch | SPC | Ashland, Ashtabula, Belmont, Carroll, Columbiana, Coshocton and 25 more | 7 hr |
| Aug 6, 2:10 PM EDT | Mesoscale Discussion | SPC | Ashland, Belmont, Carroll, Columbiana, Coshocton, Crawford and 20 more | 95 min |
| Aug 6, 4:29 PM EDT | Mesoscale Discussion | SPC | Ashland, Belmont, Carroll, Columbiana, Coshocton, Crawford and 19 more | 61 min |
Nearby
Tornado Watches in Michigan, 2024Tornado Watches in Ohio, 2024Tornado Watches in Indiana, 2024Every tornado watch in 2024
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.