A nearly-stationary front was draped in vicinity of the major axis of Lake Erie during the early evening of September 12th through the wee hours of the 13th as one low drifted northeastward over western Kansas and another remained nearly-stationary in vicinity of Labrador. A bow echo moved east-southeastward across central and eastern Lake Erie during the evening of the 12th and produced a couple of gale-force peak wind gusts along the Erie County, PA lakeshore during the 10 PM EST hour. The bow echo encountered weak to moderate MUCAPE and DCAPE, respectively, and moderate to strong effective bulk shear.
The front then wavered in vicinity of Lake Erie through the late evening of the 13th as the Kansas low moved toward Iowa and consolidated with another low moving from western Montana. Simultaneously, the Canadian low drifted eastward and offshore Labrador. The front then moved northeastward from Lake Erie as a warm front during the morning of the 14th and allowed the warm sector to overspread all of Lake Erie through the early evening as the consolidated low moved from Iowa toward central Ontario. The low then moved farther northeastward to northern Quebec by the early morning of the 15th, which is when the trailing cold front began to move eastward across the western basin of Lake Erie.
A squall line outpaced the cold front and moved generally eastward across Lake Erie during the late evening of the 14th. This line of showers and thunderstorms produced gale-force peak wind gusts along the northern Ohio shore. The showers and storms encountered moderate MUCAPE and DCAPE, and moderate to strong effective bulk shear.

Marine Thunderstorm Wind in CONNEAUT OH TO RIPLEY NY, LAKE ERIE
From 12-SEP-21 22:36:00 to 12-SEP-21 22:36:00 (EST-5)
Location: RIPLEY
Magnitude: 41.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

Erie C-MAN Station (EREP1) recorded a peak gust of 47 mph from thunderstorms.

Marine Thunderstorm Wind in CONNEAUT OH TO RIPLEY NY, LAKE ERIE
From 12-SEP-21 22:40:00 to 12-SEP-21 22:40:00 (EST-5)
Location: RIPLEY
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A mesonet station along the Lake Erie shore in North East, PA recorded a peak gust of 42 mph from thunderstorms. The station is located along PA-5, just west of the intersection with Cemetery Road.

Marine Thunderstorm Wind in MAUMEE BAY TO RENO BEACH OH, LAKE ERIE
From 14-SEP-21 20:12:00 to 14-SEP-21 20:12:00 (EST-5)
Location: MAUMEE BAY
Magnitude: 47.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

Toledo Harbor C-MAN Station (THRO1) recorded a peak gust of 54 mph from thunderstorms.

Marine Thunderstorm Wind in MAUMEE BAY TO RENO BEACH OH, LAKE ERIE
From 14-SEP-21 20:22:00 to 14-SEP-21 20:22:00 (EST-5)
Location: RENO BEACH
Magnitude: 45.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

Toledo Crib C-MAN Station (TWCO1) recorded a peak gust of 52 mph from thunderstorms.

Marine Thunderstorm Wind in RENO BEACH TO THE ISLANDS OH, LAKE ERIE
From 14-SEP-21 20:27:00 to 14-SEP-21 20:27:00 (EST-5)
Location: RENO BEACH
Magnitude: 43.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

NDBC Buoy 45165 (Toledo Water Intake Buoy) recorded a peak gust of 50 mph from thunderstorms.

Marine Thunderstorm Wind in RENO BEACH TO THE ISLANDS OH, LAKE ERIE
From 14-SEP-21 21:00:00 to 14-SEP-21 21:00:00 (EST-5)
Location: THE ISLANDS
Magnitude: 40.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

South Bass Island C-MAN Station (SBIO1) recorded a peak gust of 46 mph from thunderstorms.

Marine Thunderstorm Wind in THE ISLANDS TO VERMILION OH BEYOND 5NM OFFSHORE TO US/CANADIAN BORDER, LAKE ERIE
From 14-SEP-21 21:20:00 to 14-SEP-21 21:20:00 (EST-5)
Location: VERMILLION
Magnitude: 35.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Buoy

NDBC Buoy 45005 recorded a peak gust of 40 mph from thunderstorms. Buoy is located 16-nautical miles northwest of Lorain.

Marine Thunderstorm Wind in AVON POINT TO WILLOWICK OH, LAKE ERIE
From 14-SEP-21 22:38:00 to 14-SEP-21 22:38:00 (EST-5)
Location: WILLOWICK
Magnitude: 34.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The Burke Lakefront Airport ASOS in Cleveland recorded a peak gust of 39 mph from showers and thunderstorms.

Marine Thunderstorm Wind in WILLOWICK TO GENEVA-ON-THE-LAKE OH, LAKE ERIE
From 14-SEP-21 22:52:00 to 14-SEP-21 22:52:00 (EST-5)
Location: WILLOWICK
Magnitude: 40.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

Fairport Harbor C-MAN Station (FAIO1) recorded a peak gust of 46 mph from showers and thunderstorms.

Marine Thunderstorm Wind in VERMILION TO AVON POINT OH, LAKE ERIE
From 14-SEP-21 22:30:00 to 14-SEP-21 22:30:00 (EST-5)
Location: AVON POINT
Magnitude: 36.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

Lorain Harbor C-MAN Station (LORO1) recorded a peak gust of 41 mph from showers and thunderstorms.

Marine Thunderstorm Wind in RENO BEACH TO THE ISLANDS OH, LAKE ERIE
From 14-SEP-21 22:36:00 to 14-SEP-21 22:36:00 (EST-5)
Location: THE ISLANDS
Magnitude: 38.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: C-MAN Station

The Marblehead C-MAN Station (MRHO1) recorded a peak gust of 44 mph from thunderstorms.