A tornado watch has been issued for St. Lawrence until 11 p.m. tonight.

At 4:23 p.m. a severe thunderstorm was located over Coles Creek State Park, moving east at 15 mph.

St. Lawrence County Emergency Services Director Matt Denner is warning residents to avoid downed lines. He said a portion of Rt. 37 near Hammond to the County line has been closed due to down poles.

60 mph wind gusts and quarter size hail were reported.

Minor hail damage to vehicles is possible. Expect wind damage to trees and powerlines.

• Locations impacted include...

Massena, Norfolk, Louisville, Moira, Waddington, St. Regis, Massena International Airport - Richards Field, Madrid, Helena, Chipman, Brasher Falls, Norwood, North Stockholm, Eisenhower Lock, Brasher Center, Hogansburg, St. Lawrence State Park, Ironton, Rooseveltown and Coles Creek State Park.

According to the Weather Service people in those areas should move to an interior room on the lowest floor of a building.

The forecast through next Wednesday is as follows:

Friday

A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 76. Southwest wind 10 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night

Showers likely, mainly before 8pm. Mostly cloudy, with a low around 47. Northwest wind 10 to 14 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Saturday

Partly sunny, with a high near 59. Northwest wind 11 to 13 mph.

Saturday Night

Mostly clear, with a low around 44. Northwest wind 8 to 11 mph.

Juneteenth

Sunny, with a high near 65. Northwest wind 10 to 13 mph.

Sunday Night

Mostly clear, with a low around 47. Northwest wind 5 to 7 mph becoming light and variable after midnight.

Monday

Sunny, with a high near 72. Light west wind becoming northwest 5 to 9 mph in the morning.

Monday Night

Mostly cloudy, with a low around 54. South wind around 6 mph.

Tuesday

Mostly sunny, with a high near 73. Southeast wind 5 to 9 mph.

Tuesday Night

A 30 percent chance of showers. Mostly cloudy, with a low around 61. Southeast wind 6 to 9 mph.

Wednesday

Partly sunny, with a high near 79. Southeast wind around 6 mph becoming calm in the morning.