Severe thunderstorms expected in St. Lawrence County, large hail, power outages, damaging winds possible
Sunday, June 18, 2017 - 12:35 pm

Severe thunderstorms in St. Lawrence may bring one inch hail down between 2 and 6 p.m., according to the National Weather Service.

"Strong to locally severe thunderstorms are expected to develop across the Saint Lawrence Valley between 2 p.m. and 5 p.m. today and move east into the Adirondack Mountains and portions of Western Vermont, including the Champlain Valley by this evening," a release from the weather service said. "The primary severe weather threat over northern New York will be damaging thunderstorm winds, which could cause power outages and downed trees, along with large hail. As the line moves east the mainly severe threat will be isolated damaging wind gusts with frequent lightning and very heavy rainfall rates."

For up-to-date weather information in your area visit northcountrynow.com/weather.  A seven day forecast follows.

This Afternoon

Showers and thunderstorms likely, mainly after 4pm. Increasing clouds, with a high near 86. Heat index values as high as 91. Southwest wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Occasional showers and thunderstorms before midnight, then showers likely. Some storms could be severe, with large hail, damaging winds, and heavy rain. Low around 69. South wind 13 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Monday

A 30 percent chance of showers, mainly before noon. Partly sunny, with a high near 76. Southwest wind 13 to 15 mph. New precipitation amounts of less than a tenth of an inch possible.

Monday Night

A 30 percent chance of showers after 9pm. Increasing clouds, with a low around 62. Southwest wind around 8 mph. New precipitation amounts of less than a tenth of an inch possible.

Tuesday

A 50 percent chance of showers. Mostly cloudy, with a high near 73. Southwest wind 7 to 13 mph. New precipitation amounts between a tenth and quarter of an inch possible.

Tuesday Night

A 30 percent chance of showers. Mostly cloudy, with a low around 58. Southwest wind 7 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.

Wednesday

A 40 percent chance of showers. Partly sunny, with a high near 71. Southwest wind 8 to 11 mph.

Wednesday Night

Partly cloudy, with a low around 56. Southwest wind 5 to 7 mph.

Thursday

A 50 percent chance of showers. Partly sunny, with a high near 73. Southwest wind 5 to 9 mph.

Thursday Night

A 30 percent chance of showers. Mostly cloudy, with a low around 60. Southwest wind around 7 mph.

Friday

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Southwest wind 7 to 9 mph.

Friday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Southwest wind around 8 mph.

Saturday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 76. Southwest wind 8 to 11 mph.