Severe thunderstorms developed north of a strong cold front during the mid-afternoon and evening of the 15th.  Temperatures dropped as much as 30 degrees in one hour in some areas as the front moved south across Wisconsin.  There was a report of 3 inch diameter tree branches downed by thunderstorm winds 2 miles north of Algoma (Kewaunee co.), otherwise the storms produced large hail.  The hail ranged from dime size at numerous locations to as large as a tennis ball 5 miles west-southwest of Navarino (Shawano co.).

Hail in WAUPACA, WISCONSIN
From 15-APR-03 16:11:00 to 15-APR-03 16:17:00 (CST)
Location: WAUPACA
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Hail in SHAWANO, WISCONSIN
From 15-APR-03 18:00:00 to 15-APR-03 18:00:00 (CST)
Location: NAVARINO
Magnitude: 2.50 
Reported by: OFFICIAL NWS OBS.

Hail in SHAWANO, WISCONSIN
From 15-APR-03 13:28:00 to 15-APR-03 13:28:00 (CST)
Location: TIGERTON
Magnitude: 1.00 
Reported by: LAW ENFORCEMENT

Hail in PORTAGE, WISCONSIN
From 15-APR-03 16:43:00 to 15-APR-03 16:43:00 (CST)
Location: STEVENS PT
Magnitude: 1.75 
Reported by: TRAINED SPOTTER

Hail in SHAWANO, WISCONSIN
From 15-APR-03 14:00:00 to 15-APR-03 14:00:00 (CST)
Location: CAROLINE
Magnitude: 0.75 
Reported by: POST OFFICE

Hail in DOOR, WISCONSIN
From 15-APR-03 14:05:00 to 15-APR-03 14:05:00 (CST)
Location: FORESTVILLE
Magnitude: 0.75 
Reported by: OFFICIAL NWS OBS.

Hail in MARATHON, WISCONSIN
From 15-APR-03 17:36:00 to 15-APR-03 17:36:00 (CST)
Location: WAUSAU
Magnitude: 0.75 
Reported by: GENERAL PUBLIC

Hail in OUTAGAMIE, WISCONSIN
From 15-APR-03 18:00:00 to 15-APR-03 18:00:00 (CST)
Location: BEAR CREEK
Magnitude: 2.00 
Reported by: GENERAL PUBLIC

Hail in WINNEBAGO, WISCONSIN
From 15-APR-03 20:33:00 to 15-APR-03 20:33:00 (CST)
Location: OSHKOSH
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT

Hail in KEWAUNEE, WISCONSIN
From 15-APR-03 16:15:00 to 15-APR-03 16:25:00 (CST)
Location: LUXEMBURG
Magnitude: 1.00 
Reported by: LAW ENFORCEMENT

Hail in SHAWANO, WISCONSIN
From 15-APR-03 19:25:00 to 15-APR-03 19:25:00 (CST)
Location: PULCIFER
Magnitude: 0.88 
Reported by: GENERAL PUBLIC

Hail in KEWAUNEE, WISCONSIN
From 15-APR-03 18:27:00 to 15-APR-03 18:27:00 (CST)
Location: LUXEMBURG
Magnitude: 1.00 
Reported by: GENERAL PUBLIC

Hail in WAUSHARA, WISCONSIN
From 16-APR-03 00:09:00 to 16-APR-03 00:09:00 (CST)
Location: PLAINFIELD
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT

Hail in OUTAGAMIE, WISCONSIN
From 15-APR-03 23:27:00 to 15-APR-03 23:27:00 (CST)
Location: APPLETON
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT

Hail in WAUPACA, WISCONSIN
From 15-APR-03 16:50:00 to 15-APR-03 16:50:00 (CST)
Location: CLINTONVILLE
Magnitude: 1.25 
Reported by: OFFICIAL NWS OBS.

Hail in OUTAGAMIE, WISCONSIN
From 15-APR-03 17:02:00 to 15-APR-03 17:02:00 (CST)
Location: HORTONVILLE
Magnitude: 1.25 
Reported by: TRAINED SPOTTER

Hail in WAUPACA, WISCONSIN
From 15-APR-03 17:22:00 to 15-APR-03 17:22:00 (CST)
Location: IOLA
Magnitude: 1.50 
Reported by: TRAINED SPOTTER

Hail in BROWN, WISCONSIN
From 15-APR-03 18:55:00 to 15-APR-03 19:00:00 (CST)
Location: FLINTVILLE
Magnitude: 1.75 
Reported by: TRAINED SPOTTER

Hail in DOOR, WISCONSIN
From 15-APR-03 19:28:00 to 15-APR-03 19:28:00 (CST)
Location: BRUSSELS
Magnitude: 1.00 
Reported by: LAW ENFORCEMENT

Hail in OCONTO, WISCONSIN
From 15-APR-03 19:35:00 to 15-APR-03 19:35:00 (CST)
Location: PENSAUKEE
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Hail in MARATHON, WISCONSIN
From 15-APR-03 20:30:00 to 15-APR-03 20:30:00 (CST)
Location: WAUSAU
Magnitude: 0.88 
Reported by: LAW ENFORCEMENT

Hail in BROWN, WISCONSIN
From 15-APR-03 16:12:00 to 15-APR-03 16:12:00 (CST)
Location: PULASKI
Magnitude: 0.88 
Reported by: TRAINED SPOTTER

Hail in PORTAGE, WISCONSIN
From 15-APR-03 16:21:00 to 15-APR-03 16:28:00 (CST)
Location: PLOVER
Magnitude: 1.50 
Reported by: TRAINED SPOTTER

Hail in DOOR, WISCONSIN
From 15-APR-03 14:50:00 to 15-APR-03 14:50:00 (CST)
Location: FORESTVILLE
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Thunderstorm Wind in KEWAUNEE, WISCONSIN
From 15-APR-03 14:55:00 to 15-APR-03 14:55:00 (CST)
Location: ALGOMA
Magnitude: 50 EG
Reported by: AMATEUR RADIO

Hail in OUTAGAMIE, WISCONSIN
From 15-APR-03 15:49:00 to 15-APR-03 15:49:00 (CST)
Location: SHIOCTON
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Hail in SHAWANO, WISCONSIN
From 15-APR-03 16:01:00 to 15-APR-03 16:01:00 (CST)
Location: BRIARTON
Magnitude: 1.50 
Reported by: GENERAL PUBLIC

Hail in WAUPACA, WISCONSIN
From 15-APR-03 16:32:00 to 15-APR-03 16:32:00 (CST)
Location: IOLA
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Hail in PORTAGE, WISCONSIN
From 15-APR-03 16:40:00 to 15-APR-03 16:40:00 (CST)
Location: AMHERST
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT