On the afternoon of June 26th, an unseasonably cold and strong upper level low pressure system was located across eastern Canada. Mid-level shortwave energy rotated around this upper low into a moderately unstable air mass across northern New York and Vermont. This resulted in widespread thunderstorm activity, some of which produced large hail and brief strong winds across portions of Vermont.

Hail in FRANKLIN, VERMONT
From 26-JUN-09 16:10:00 to 26-JUN-09 16:10:00 (EST-5)
Location: EAST FRANKLIN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Penny size hail and estimated wind gusts in excess of 40 mph reported near Enosburg Falls.

Hail in GRAND ISLE, VERMONT
From 26-JUN-09 15:55:00 to 26-JUN-09 15:55:00 (EST-5)
Location: GRAND ISLE STATION
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel size hail reported, as well as hail duration of 5 to 10 minutes with slight accumulation.

Thunderstorm Wind in CHITTENDEN, VERMONT
From 26-JUN-09 16:35:00 to 26-JUN-09 16:35:00 (EST-5)
Location: CHAMPLAIN ARPT
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several trees and branches downed by thunderstorm winds off North Avenue in North End of Burlington.

Thunderstorm Wind in CHITTENDEN, VERMONT
From 26-JUN-09 16:45:00 to 26-JUN-09 16:45:00 (EST-5)
Location: WINOOSKI
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A few trees downed by thunderstorm winds along Lavigne road in Colchester.

Thunderstorm Wind in CHITTENDEN, VERMONT
From 26-JUN-09 16:55:00 to 26-JUN-09 16:55:00 (EST-5)
Location: ESSEX JCT
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Tree, branches and power line downed by thunderstorm winds along River Cove Road in Williston.

Hail in FRANKLIN, VERMONT
From 26-JUN-09 13:55:00 to 26-JUN-09 13:55:00 (EST-5)
Location: ENOSBURG FALLS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail reported.

Hail in FRANKLIN, VERMONT
From 26-JUN-09 15:25:00 to 26-JUN-09 15:25:00 (EST-5)
Location: HIGHGATE SPGS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Nickel size hail reported.

Hail in FRANKLIN, VERMONT
From 26-JUN-09 15:52:00 to 26-JUN-09 15:52:00 (EST-5)
Location: FRANKLIN
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Golf ball size hail reported.

Hail in ADDISON, VERMONT
From 26-JUN-09 17:25:00 to 26-JUN-09 17:25:00 (EST-5)
Location: ORWELL
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Nickel size hail reported.

Hail in CHITTENDEN, VERMONT
From 26-JUN-09 16:20:00 to 26-JUN-09 16:20:00 (EST-5)
Location: MILTONBORO
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Penny size hail reported in Miltonboro section of Milton.

Hail in FRANKLIN, VERMONT
From 26-JUN-09 15:55:00 to 26-JUN-09 15:55:00 (EST-5)
Location: FRANKLIN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Penny size hail reported at Lake Carmi State Park by employee.