On May 30th, a short wave trough moving rapidly southeastward across Michigan's Upper Peninsula combined with a mid-level jet  to produce severe thunderstorms with large hail, damaging winds and a weak tornado.

Hail in MARQUETTE, MICHIGAN
From 30-MAY-02 16:30:00 to 30-MAY-02 16:30:00 (EST)
Location: WATSON
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Three quarter inch diameter hail was reported.

Hail in ONTONAGON, MICHIGAN
From 30-MAY-02 14:00:00 to 30-MAY-02 14:00:00 (EST)
Location: TROUT CREEK
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Three quarter inch diameter hail was reported.

Hail in HOUGHTON, MICHIGAN
From 30-MAY-02 14:05:00 to 30-MAY-02 14:05:00 (EST)
Location: KENTON
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Three quarter inch diameter hail was reported.

Hail in MARQUETTE, MICHIGAN
From 30-MAY-02 16:50:00 to 30-MAY-02 16:50:00 (EST)
Location: ARNOLD
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Three quarter inch diameter hail was reported.

Hail in MENOMINEE, MICHIGAN
From 30-MAY-02 15:45:00 to 30-MAY-02 15:45:00 (CST)
Location: INGALLS
Magnitude: 0.88 
Reported by: GENERAL PUBLIC

Nickel sized hail was reported.

Hail in DICKINSON, MICHIGAN
From 30-MAY-02 18:22:00 to 30-MAY-02 18:22:00 (CST)
Location: CHANNING
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Three quarter inch diameter hail was reported.

Hail in DICKINSON, MICHIGAN
From 30-MAY-02 18:30:00 to 30-MAY-02 18:30:00 (CST)
Location: RANDVILLE
Magnitude: 2.00 
Reported by: TRAINED SPOTTER

Two inch diameter hail was reported.

Thunderstorm Wind in DICKINSON, MICHIGAN
From 30-MAY-02 18:15:00 to 30-MAY-02 18:15:00 (CST)
Location: CHANNING
Magnitude: 60 E
Reported by: TRAINED SPOTTER

One foot diameter trees were uprooted.

Hail in DELTA, MICHIGAN
From 30-MAY-02 21:07:00 to 30-MAY-02 21:07:00 (EST)
Location: ESCANABA
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Three quarter inch diameter hail was reported.

Hail in IRON, MICHIGAN
From 30-MAY-02 18:20:00 to 30-MAY-02 18:20:00 (CST)
Location: CRYSTAL FALLS
Magnitude: 1.75 
Reported by: TRAINED SPOTTER

One and three quarter inch diameter hail was reported.

Hail in IRON, MICHIGAN
From 30-MAY-02 18:25:00 to 30-MAY-02 18:25:00 (CST)
Location: CRYSTAL FALLS
Magnitude: 1.75 
Reported by: TRAINED SPOTTER

One and three quarter inch diameter hail was reported.

Hail in DICKINSON, MICHIGAN
From 30-MAY-02 18:53:00 to 30-MAY-02 18:53:00 (CST)
Location: HARDWOOD
Magnitude: 1.75 
Reported by: TRAINED SPOTTER

One and three quarter inch diameter hail was reported.

Hail in MARQUETTE, MICHIGAN
From 30-MAY-02 15:30:00 to 30-MAY-02 15:30:00 (EST)
Location: SOUTH REPUBLIC
Magnitude: 0.88 
Reported by: GENERAL PUBLIC

Nickel sized hail was reported.

Hail in DICKINSON, MICHIGAN
From 30-MAY-02 18:25:00 to 30-MAY-02 18:25:00 (CST)
Location: SAGOLA
Magnitude: 1.75 
Reported by: TRAINED SPOTTER

One and three quarter inch diameter hail was reported.

Hail in DICKINSON, MICHIGAN
From 30-MAY-02 18:25:00 to 30-MAY-02 18:25:00 (CST)
Location: CHANNING
Magnitude: 1.50 
Reported by: TRAINED SPOTTER

One and a half inch diameter hail was reported.

Thunderstorm Wind in HOUGHTON, MICHIGAN
From 30-MAY-02 17:50:00 to 30-MAY-02 17:50:00 (EST)
Location: LAKE LINDEN
Magnitude: 55 E
Reported by: DEPT OF HIGHWAYS

Three inch diameter tree branches were broken off.

Thunderstorm Wind in MARQUETTE, MICHIGAN
From 30-MAY-02 16:10:00 to 30-MAY-02 16:10:00 (EST)
Location: GWINN
Magnitude: 55 E
Reported by: NWS STORM SURVEY

Three to four inch diameter tree branches were broken off.

Thunderstorm Wind in MARQUETTE, MICHIGAN
From 30-MAY-02 16:18:00 to 30-MAY-02 16:18:00 (EST)
Location: MC FARLAND
Magnitude: 75 E
Reported by: NWS STORM SURVEY

Several large trees were knocked down and large branches were broken off.

Thunderstorm Wind in DICKINSON, MICHIGAN
From 30-MAY-02 14:53:00 to 30-MAY-02 14:53:00 (CST)
Location: RALPH
Magnitude: 55 E
Reported by: NWS STORM SURVEY

Large tree branches were broken off.

Hail in DICKINSON, MICHIGAN
From 30-MAY-02 19:00:00 to 30-MAY-02 19:00:00 (CST)
Location: FOSTER CITY
Magnitude: 0.75 
Reported by: GENERAL PUBLIC

Three quarter inch diameter hail was reported.

Hail in MENOMINEE, MICHIGAN
From 30-MAY-02 19:35:00 to 30-MAY-02 19:35:00 (CST)
Location: WILSON
Magnitude: 0.75 
Reported by: GENERAL PUBLIC

Three quarter inch diameter hail was reported.

Hail in MARQUETTE, MICHIGAN
From 30-MAY-02 16:55:00 to 30-MAY-02 16:55:00 (EST)
Location: WATSON
Magnitude: 0.75 
Reported by: GENERAL PUBLIC

Three quarter inch diameter hail was reported.

Funnel Cloud in DICKINSON, MICHIGAN
From 30-MAY-02 18:00:00 to 30-MAY-02 18:00:00 (CST)
Location: NORWAY
Reported by: GENERAL PUBLIC

A funnel cloud was sighted.

Tornado in DELTA, MICHIGAN
From 30-MAY-02 17:23:00 to 30-MAY-02 17:28:00 (EST)
Location: RAPID RIVER
Tornado F-scale: F0
Reported by: TRAINED SPOTTER

A short lived tornado, lasting about 5 minutes, was reported. There was no damage.

Hail in DELTA, MICHIGAN
From 30-MAY-02 17:05:00 to 30-MAY-02 17:05:00 (EST)
Location: ROCK
Magnitude: 0.88 
Reported by: TRAINED SPOTTER

Nickel sized hail was reported.

Thunderstorm Wind in BARAGA, MICHIGAN
From 30-MAY-02 20:00:00 to 30-MAY-02 20:00:00 (EST)
Location: COVINGTON
Magnitude: 55 E
Reported by: GENERAL PUBLIC

Two inch diameter tree branches broken off.

Hail in DELTA, MICHIGAN
From 30-MAY-02 23:15:00 to 30-MAY-02 23:15:00 (EST)
Location: RAPID RIVER
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Three quarted inch diameter hail was reported.

Hail in DELTA, MICHIGAN
From 30-MAY-02 21:10:00 to 30-MAY-02 21:10:00 (EST)
Location: ESCANABA
Magnitude: 1.25 
Reported by: TRAINED SPOTTER

One and a quarter inch hail was reported.

Hail in MENOMINEE, MICHIGAN
From 30-MAY-02 15:45:00 to 30-MAY-02 15:45:00 (CST)
Location: WALLACE
Magnitude: 0.88 
Reported by: GENERAL PUBLIC

Nickel sized hail was reported.

Thunderstorm Wind in MARQUETTE, MICHIGAN
From 30-MAY-02 18:34:00 to 30-MAY-02 18:34:00 (EST)
Location: MICHIGAMME
Magnitude: 60 E
Reported by: DEPT OF HIGHWAYS

One foot diameter pine tree snapped in half.