Full Notification

...A PERIOD OF DANGEROUS HEAT EXPECTED ACROSS NORTHERN ILLINOIS AND NORTHWEST INDIANA... .A multiple day episode of dangerous heat is expected later this week centered on Friday into the start of the weekend. This heat will expand into the area Thursday afternoon and persist through Friday and into Saturday. There is a potential for showers and thunderstorms Thursday morning that may keep Thursday cooler than forecast, but confidence is increasing in dangerous heat arriving by Friday. Additionally, there will be little relief from the heat overnight Thursday and Friday. The urban heat island core of Chicago is most susceptible to night time temperatures that do not cool significantly, limiting the amount of relief that can occur at night. The National Weather Service in Chicago has issued a Heat Advisory, which is in effect from noon Thursday to 11 PM CDT Friday.

* HIGH TEMPERATURE....92 to 98 degrees with the hottest conditions on Friday.

* MAXIMUM HEAT INDICES...Peaking 101 to 109 degrees.

* IMPACTS...The cumulative effects of temperatures and heat index values this high could lead to heat related illnesses with prolonged exposure. Those without air conditioning, elderly, small children, and pets are especially susceptible. Plan ahead. Have a cool place to shelter from the heat. Avoid outdoor activity, especially strenuous ones, during the peak heating times of the day.

* AFFECTED AREAS: OGLE ... WINNEBAGO ... MCHENRY ... LAKE ... BOONE

Instructions:

A Heat Advisory means that a period of hot temperatures is expected. The combination of hot temperatures and high humidity will combine to create a situation in which heat illnesses are possible. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun...and check up on relatives and neighbors. Take extra precautions...if you work or spend time outside. When possible...reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. 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.