At 217 PM EDT, Doppler radar was tracking a strong thunderstorm over Minerva, moving northeast at 20 mph. HAZARD. Wind gusts up to 50 mph and pea size hail. SOURCE. Radar indicated. IMPACT. Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include. Minerva, Newcomb, Mount Marcy, Schroon Lake, North Hudson, Paradox, Olmstedville, South Schroon, Pharoah Mountain, Schroon Falls, Steep Bay, Grass Island, Severance, Tahawus, and Vanderwhacker Mountain. This includes Interstate 87 between mile markers 82 and 95.

At 216 PM EDT, Doppler radar was tracking a strong thunderstorm 7 miles southeast of Corinth, or 8 miles northeast of Saratoga Springs, moving east at 15 mph. HAZARD. Wind gusts up to 40 mph and pea size hail. SOURCE. Radar indicated. IMPACT. Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include. Fort Edward, Wilton, Northumberland, Gurn Spring, Bacon Hill, Randall Corner, Lick Springs, Jewell Corner, Ballard Corners, Kings Station, Dimmick Corners, Fortsville, Travers Corners, Callahans Corners, Clarks Corner, Gansevoort, Reynolds Corners, Durkeetown, Fort Miller, and Bald Mountain. This includes Interstate 87 between exits 16 and 17N.

* WHAT. Heat index values of up to 95 degrees. * WHERE. Western Greene, Western Ulster, Hamilton, Northern Fulton, and Northern Herkimer Counties. * WHEN. Until 8 PM EDT Thursday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values of 95 to 104 degrees. * WHERE. Portions of northwestern Connecticut, western Massachusetts, eastern New York, and southern Vermont. * WHEN. Until 8 PM EDT Thursday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS. Highest heat indices are expected at elevations below 1000 feet. If coverage of heat indices in excess of 105 degrees increases, then upgrades to excessive heat warnings may be needed.

* WHAT. Widespread heat index values up to 100 with localized heat index values up to 105. * WHERE. All of Vermont and northern New York. Hottest conditions will be in portions of the Champlain Valley. * WHEN. Until 8 PM EDT Thursday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.