A pre-frontal trough and surface cold front pushed through Maine through the afternoon of June 19th.  An unstable atmosphere, combined with abundant shear allowed a line of storms to develop across Somerset County.  The line of storms gathered strength once they reached the Kennebec River Valley were they became severe.  Severe thunderstorms continued to track eastward through the Midcoast region through the afternoon hours.  One storm became an organized long track supercell that had a distinct wall cloud with an associated funnel cloud.  Tornado touchdown with this circulation was never found or confirmed.

Funnel Cloud in KNOX, MAINE
From 19-JUN-21 16:00:00 to 19-JUN-21 16:05:00 (EST-5)
Location: HOPE
Reported by: Public

Multiple photos and videos via social media showing low hanging rotating wall cloud and funnel cloud just north of Hope, ME.  Feature was associated with a well organized super cell, no confirmation of a tornado was found with this storm.

Hail in KENNEBEC, MAINE
From 19-JUN-21 14:20:00 to 19-JUN-21 14:25:00 (EST-5)
Location: MARANACOOK
Magnitude: 1.00 
Reported by: Trained Spotter

A severe thunderstorm dropped 1 hail south of Readfield, ME.

Hail in WALDO, MAINE
From 19-JUN-21 16:20:00 to 19-JUN-21 16:25:00 (EST-5)
Location: ISLESBORO ARPT
Magnitude: 1.00 
Reported by: Public

A super cell storm dropped 1 of hail on the island of Isleboro, ME.

Thunderstorm Wind in KENNEBEC, MAINE
From 19-JUN-21 14:22:00 to 19-JUN-21 14:27:00 (EST-5)
Location: OAKLAND
Magnitude: 52.00 EG
Reported by: Public

A severe thunderstorm wind gust downed multiple trees which brought down powerlines in Oakland Maine.

Thunderstorm Wind in KENNEBEC, MAINE
From 19-JUN-21 14:25:00 to 19-JUN-21 14:30:00 (EST-5)
Location: OAKLAND
Magnitude: 52.00 EG
Reported by: Trained Spotter

A severe thunderstorm wind gust downed multiple trees north of Oakland Maine.

Thunderstorm Wind in SOMERSET, MAINE
From 19-JUN-21 14:27:00 to 19-JUN-21 14:32:00 (EST-5)
Location: FAIRFIELD CENTER
Magnitude: 52.00 EG
Reported by: NWS Employee

A severe thunderstorm wind gust downed a tree in Fairfield Center on Route 23 that blocked a lane.

Thunderstorm Wind in KENNEBEC, MAINE
From 19-JUN-21 14:35:00 to 19-JUN-21 14:40:00 (EST-5)
Location: BENTON
Magnitude: 52.00 EG
Reported by: Public

A severe thunderstorm wind gust downed multiple trees which brought down powerlines in Benton, Maine.

Thunderstorm Wind in WALDO, MAINE
From 19-JUN-21 14:50:00 to 19-JUN-21 14:55:00 (EST-5)
Location: BRANCH MILLS
Magnitude: 52.00 EG
Reported by: Fire Department/Rescue

A severe thunderstorm wind gust downed multiple trees which brought down powerlines in Palermo, Maine.

Thunderstorm Wind in WALDO, MAINE
From 19-JUN-21 15:05:00 to 19-JUN-21 15:10:00 (EST-5)
Location: MONROE CENTER
Magnitude: 52.00 EG
Reported by: Public

A severe thunderstorm wind gust downed multiple trees in Monroe Center Maine.

Thunderstorm Wind in WALDO, MAINE
From 19-JUN-21 14:46:00 to 19-JUN-21 14:51:00 (EST-5)
Location: UNITY
Magnitude: 52.00 EG
Reported by: Law Enforcement

Waldo County Dispatch reports a severe thunderstorm wind gust downed a tree in Unity, Maine that started a fire.

Thunderstorm Wind in WALDO, MAINE
From 19-JUN-21 15:10:00 to 19-JUN-21 15:15:00 (EST-5)
Location: MORRILL
Magnitude: 52.00 EG
Reported by: Law Enforcement

Waldo County Dispatch reports a severe thunderstorm wind gust downed a tree in Morrill, Maine.

Thunderstorm Wind in WALDO, MAINE
From 19-JUN-21 14:35:00 to 19-JUN-21 14:40:00 (EST-5)
Location: BURNHAM
Magnitude: 52.00 EG
Reported by: Law Enforcement

Waldo County dispatch reports a severe thunderstorm wind gust downed a tree in the town of Burnham, Maine.

Thunderstorm Wind in WALDO, MAINE
From 19-JUN-21 15:32:00 to 19-JUN-21 15:37:00 (EST-5)
Location: CAPE JCT
Magnitude: 52.00 EG
Reported by: Law Enforcement

Waldo County Dispatch reports a severe thunderstorm wind gust downed a tree in Stockton Springs that fell and caught on fire.