* WHAT. Heat index values in the upper 90s today and as high as 104F Tuesday through Thursday. * WHERE. The Genesee Valley and northern Finger Lakes. * WHEN. Until 8 PM EDT Thursday. * IMPACTS. Hot temperatures and high humidity may cause heat related illnesses to occur.

At 423 PM EDT, Doppler radar was tracking a strong thunderstorm over Naples, or 16 miles west of Penn Yan, moving east at 25 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. Penn Yan, Potter, Middlesex, Italy, Rushville, Guyanoga, Branchport, Ferguson Corners, Keuka Park, and Vine Valley.

* WHAT. Heat index values in the upper 90s today and as high as 104F Tuesday through Thursday. * WHERE. The Genesee Valley and northern Finger Lakes. * WHEN. Until 8 PM EDT Thursday. * IMPACTS. Hot temperatures and high humidity may cause heat related illnesses to occur.

* WHAT. Heat index values up to 100 expected. * WHERE. Central Pennsylvania. * WHEN. From noon Tuesday to 8 PM EDT Thursday. * IMPACTS. Hot temperatures and high humidity may cause heat-related illnesses. * ADDITIONAL DETAILS. The heat wave is expected to continue into the weekend with the hottest temperatures of the summer so far. The longevity of the heat wave has not been experienced in decades during the month of June.

SVRBGM The National Weather Service in Binghamton has issued a * Severe Thunderstorm Warning for. Yates County in central New York. North central Steuben County in central New York. * Until 530 PM EDT. * At 432 PM EDT, a severe thunderstorm was located over Naples, or 16 miles west of Penn Yan, moving east at 15 mph. HAZARD. 60 mph wind gusts. SOURCE. Radar indicated. IMPACT. Expect damage to roofs, siding, and trees. * Locations impacted include. Penn Yan, Benton, Potter, Dundee, Middlesex, Pulteney, Italy, Cohocton, Rushville, and Guyanoga.