A cold front moving across the Upper Great Lakes produced strong to severe thunderstorms across much of Lake Superior during the evening of the 30th.

Marine Thunderstorm Wind in GRAND MARAIS TO WHITEFISH POINT MI, LAKE SUPERIOR
From 30-JUN-22 20:20:00 to 30-JUN-22 20:25:00 (EST-5)
Location: GRAND MARAIS LIGHT
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Peak thunderstorm wind gust measured at Grand Marais Light.

Marine Hail in ONTONAGON TO UPPER ENTRANCE OF PORTAGE CANAL MI, LAKE SUPERIOR
From 30-JUN-22 17:00:00 to 30-JUN-22 17:05:00 (EST-5)
Location: WILLARD POINT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A delayed report via Facebook of quarter-sized hail near Misery Bay.

Marine Thunderstorm Wind in POINT ISABELLE TO LOWER ENTRANCE OF PORTAGE CANAL MI, LAKE SUPERIOR
From 30-JUN-22 17:52:00 to 30-JUN-22 18:00:00 (EST-5)
Location: KEWEENAW LOWER ENTRANCE LIGHT
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Report of downed power lines on Tailor Road, right off of Skanee Road.  Time of the report was estimated from radar.

Marine Thunderstorm Wind in PORTAGE LAKE TO HURON IS MI TO LOWER ENTRANCE OF PORTAGE CANAL TO HURON IS INC KEWEENAW AND HURON BAYS, LAKE SUPERIOR
From 30-JUN-22 17:52:00 to 30-JUN-22 18:00:00 (EST-5)
Location: SAND POINT LIGHT
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Report of downed power lines on Tailor Road, right off of Skanee Road.  Time of the report was estimated from radar.

Marine Thunderstorm Wind in HURON ISLANDS TO MARQUETTE MI, LAKE SUPERIOR
From 30-JUN-22 18:55:00 to 30-JUN-22 19:05:00 (EST-5)
Location: LITTLE PRESQUE ISLE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were reported down across County Road 550 near Eagles Nest Road.  Time of the report was estimated from radar.

Marine Thunderstorm Wind in MANITOU ISLAND TO MARQUETTE MI BEYOND 5NM FROM SHORE, LAKE SUPERIOR
From 30-JUN-22 19:00:00 to 30-JUN-22 19:05:00 (EST-5)
Location: MARQUETTE
Magnitude: 37.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Peak thunderstorm wind gust measured at Granite Island Light.

Marine Thunderstorm Wind in MUNISING TO GRAND MARAIS MI, LAKE SUPERIOR
From 30-JUN-22 20:20:00 to 30-JUN-22 20:25:00 (EST-5)
Location: GRAND MARAIS LIGHT
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Peak thunderstorm wind gust measured at Grand Marais Light.

Marine Thunderstorm Wind in MUNISING TO GRAND MARAIS MI, LAKE SUPERIOR
From 30-JUN-22 20:30:00 to 30-JUN-22 20:35:00 (EST-5)
Location: GRAND MARAIS LIGHT
Magnitude: 38.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Peak thunderstorm wind gust measured at Grand Marais Light.

Marine Thunderstorm Wind in GRAND MARAIS TO WHITEFISH POINT MI, LAKE SUPERIOR
From 30-JUN-22 20:30:00 to 30-JUN-22 20:35:00 (EST-5)
Location: GRAND MARAIS LIGHT
Magnitude: 38.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Peak thunderstorm wind gust measured at Grand Marais Light.

Marine Hail in MARQUETTE TO MUNISING MI, LAKE SUPERIOR
From 30-JUN-22 20:35:00 to 30-JUN-22 20:40:00 (EST-5)
Location: MARQUETTE LIGHTHOUSE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

One inch diameter hail was reported in Harvey.

Marine Thunderstorm Wind in HURON ISLANDS TO MARQUETTE MI, LAKE SUPERIOR
From 30-JUN-22 20:31:00 to 30-JUN-22 20:40:00 (EST-5)
Location: MARQUETTE LIGHTHOUSE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees and power lines reported down in the Harvey area from severe thunderstorms.

Marine Thunderstorm Wind in MARQUETTE TO MUNISING MI, LAKE SUPERIOR
From 30-JUN-22 20:31:00 to 30-JUN-22 20:40:00 (EST-5)
Location: MARQUETTE LIGHTHOUSE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees and power lines reported down in the Harvey area from severe thunderstorms.

Marine Thunderstorm Wind in MARQUETTE TO MUNISING MI, LAKE SUPERIOR
From 30-JUN-22 21:00:00 to 30-JUN-22 21:10:00 (EST-5)
Location: AU TRAIN
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Power lines were reported down from thunderstorm winds in the Au Train area.