Extreme heat starts Thursday, July 18, and lasts through Saturday.
The heat index will surpass 100 and could reach 110 by Friday.
There is little relief at night due to stifling humidity, lows stay above 70.
The chance of rain is low but a few storms are possible.
The heat now looks to break Sunday with an approaching cold front that will likely produce showers and storms.
Next week is the complete opposite, very mild, cool for the end of July.
Thursday: Extreme heat, isolate storms, high of 94.
Friday: Extreme heat, mostly sunny, high of 96.
Saturday: Extreme heat, mostly sunny, high of 95.
...EXCESSIVE HEAT WARNING IN EFFECT FROM 2 PM EDT /1 PM CDT/ THURSDAY TO 8 PM EDT /7 PM CDT/ SATURDAY... The National Weather Service in Northern Indiana has issued an Excessive Heat Warning...which is in effect from 2 PM EDT /1 PM CDT/ Thursday to 8 PM EDT /7 PM CDT/ Saturday. The Excessive Heat Watch is no longer in effect for Indiana counties. HAZARDOUS WEATHER... * Afternoon to early evening temperatures from Thursday through Saturday in the 90s with heat indices from around 100 to 110 degrees. The hottest heat indices is expected on Friday and Saturday. IMPACTS... * Heat illnesses likely for those spending prolonged periods outside or in non-air conditioned locations. * Prolonged heat most dangerous for young children and elderly. * Car interiors can reach lethal temperatures in minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. An Excessive Heat Warning means that a prolonged period of dangerously hot temperatures will occur. The combination of hot temperatures and high humidity will combine to create a dangerous situation in which heat illnesses are likely. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun... and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes.
Excessive heat and humidity expected Thursday through Saturday. Peak afternoon heat indices between 100 and 110 degrees each day. pic.twitter.com/lS4tAfQBg5
— NWS Northern Indiana (@NWSIWX) July 17, 2019