Alert archive / Michigan / Tornado Watches in 2002
Tornado Watch 565
The Storm Prediction Center issued this tornado watch at Aug 1, 2002, 6:30 PM EDT for 40 counties in Michigan. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 1, 2002, 6:30 PM EDT (22:30 UTC)
- Expired
- Aug 2, 2002, 12:00 AM EDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 40 counties
Alcona County, MI, Alpena County, MI, Antrim County, MI, Arenac County, MI, Bay County, MI, Cheboygan 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, 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, Shiawassee County, MI, Tuscola County, MI, Wexford County, MI
Warnings issued inside it
23 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 6:32 PM EDT | Tornado Warning | APX | Cheboygan | 28 min |
| Aug 1, 6:50 PM EDT | Tornado Warning | APX | Presque Isle | 40 min |
| Aug 1, 7:13 PM EDT | Severe Thunderstorm Warning | APX | Grand Traverse | 47 min |
| Aug 1, 7:30 PM EDT | Severe Thunderstorm Warning | GRR | Lake | 60 min |
| Aug 1, 7:51 PM EDT | Tornado Warning | APX | Presque Isle | 39 min |
| Aug 1, 8:22 PM EDT | Severe Thunderstorm Warning | APX | Montmorency | 38 min |
| Aug 1, 8:38 PM EDT | Severe Thunderstorm Warning | GRR | Lake | 22 min |
| Aug 1, 8:57 PM EDT | Severe Thunderstorm Warning | GRR | Newaygo | 63 min |
| Aug 1, 9:02 PM EDT | Tornado Warning | GRR | Osceola | 28 min |
| Aug 1, 9:09 PM EDT | Severe Thunderstorm Warning | GRR | Oceana | 41 min |
| Aug 1, 9:10 PM EDT | Severe Thunderstorm Warning | GRR | Mecosta | 65 min |
| Aug 1, 9:22 PM EDT | Severe Thunderstorm Warning | GRR | Muskegon | 83 min |
| Aug 1, 9:29 PM EDT | Tornado Warning | GRR | Clare | 31 min |
| Aug 1, 9:37 PM EDT | Tornado Warning | GRR | Mecosta | 23 min |
| Aug 1, 9:56 PM EDT | Tornado Warning | GRR | Newaygo | 34 min |
| Aug 1, 10:00 PM EDT | Tornado Warning | GRR | Mecosta | 30 min |
| Aug 1, 10:04 PM EDT | Tornado Warning | GRR | Montcalm | 56 min |
| Aug 1, 10:10 PM EDT | Severe Thunderstorm Warning | GRR | Kent | 65 min |
| Aug 1, 10:20 PM EDT | Severe Thunderstorm Warning | GRR | Ottawa | 85 min |
| Aug 1, 10:47 PM EDT | Severe Thunderstorm Warning | GRR | Gratiot | 58 min |
| Aug 1, 10:58 PM EDT | Severe Thunderstorm Warning | GRR | Montcalm | 17 min |
| Aug 1, 11:00 PM EDT | Severe Thunderstorm Warning | GRR | Ionia | 60 min |
| Aug 1, 11:13 PM EDT | Severe Thunderstorm Warning | GRR | Kent | 32 min |
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 10.5 hours before the alert went out and 188 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
- 1226 J/kg
- Mixed-layer CIN
- -135 J/kg
- Mixed-layer LCL
- 1553 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 89 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 1, 5:45 AM EDT | Severe Thunderstorm Watch | SPC | Alger, Baraga, Delta, Dickinson, Houghton, Iron and 4 more | 4 hr |
| Aug 1, 11:20 AM EDT | Severe Thunderstorm Watch | SPC | Alcona, Alpena, Antrim, Arenac, Bay, Benzie and 35 more | 5 hr |
| Aug 1, 3:25 PM EDT | Severe Thunderstorm Watch | SPC | Alger, Alpena, Antrim, Baraga, Benzie, Charlevoix and 24 more | 6 hr |
| Aug 1, 7:10 PM EDT | Severe Thunderstorm Watch | SPC | Allegan, Berrien, Van Buren | 6 hr |
Nearby
Tornado Watches in Michigan, 2002Every tornado watch in 2002
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.