The National Weather Service issued a heat advisory at 2:21 a.m. on Monday valid from Tuesday 11 a.m. until Wednesday 7 p.m. for Ulster and Dutchess counties."Heat index values up to 103 degrees expected on Tuesday and up to 98 degrees on Wednesday," explains the weather service. "There will be litt le relief Tuesday night with low temperatures in the upper 60s to lower 70s." ...read more read less