...HEAT ADVISORY NOW IN EFFECT UNTIL 10 AM EDT MONDAY... ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM TO 8 PM EDT MONDAY... ...HEAT ADVISORY IN EFFECT FROM 8 PM MONDAY TO 8 PM EDT WEDNESDAY... * WHAT...For the first Heat Advisory, heat index values up to 104. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 109 expected. For the second Heat Advisory, heat index values up to 102 expected. * WHERE...In New York, Broome, Chemung, Onondaga, Schuyler, Tioga, and Tompkins Counties. In Pennsylvania, Bradford, Lackawanna, Luzerne, and Wyoming Counties. * WHEN...For the first Heat Advisory, until 10 AM EDT Monday. For the Extreme Heat Warning, from 10 AM to 8 PM EDT Monday. For the second Heat Advisory, from 8 PM Monday to 8 PM EDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...The highest heat indices will occur in the urban valley locations.Overnight lows in the 70s will provide little if any relief. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. &&