8/12/2025 1:40:00 PM until 8/13/2025 8:00:00 AM

Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. 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.

* WHAT...Heat index values up to 95 expected. * WHERE...Northern Franklin, Northern St. Lawrence, and Southwestern St. Lawrence Counties. * WHEN...Until 8 AM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...There will be little relief tonight with low temperatures only cooling to around 70 degrees. Structures will not efficiently cool off in these conditions. Heat impacts are cumulative, and those without access to adequate cooling will be at the most risk to developing heat related illnesses.