A six day heat impacted Southeast Michigan July 14th through the 19th with high temperatures ranging from the upper 80s to mid 90s. Heat Indices were in the 90s for the most part, but Detroit Metro area hospitals reported an increase of 173 heat related illnesses during this stretch.  Here are the daily maxes reported at Flint Bishop Airport and Detroit Metro Airport during the six days.
Flint: 90, 93, 94, 95, 95, 96.
Detroit: 89, 93, 90, 94, 94, 95.

Heat in TUSCOLA, MICHIGAN
From 14-JUL-13 12:00:00 to 19-JUL-13 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heat in SANILAC, MICHIGAN
From 14-JUL-13 12:00:00 to 19-JUL-13 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heat in MIDLAND, MICHIGAN
From 14-JUL-13 12:00:00 to 19-JUL-13 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heat in BAY, MICHIGAN
From 14-JUL-13 12:00:00 to 19-JUL-13 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heat in HURON, MICHIGAN
From 14-JUL-13 12:00:00 to 19-JUL-13 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heat in SHIAWASSEE, MICHIGAN
From 14-JUL-13 12:00:00 to 19-JUL-13 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heat in LAPEER, MICHIGAN
From 14-JUL-13 12:00:00 to 19-JUL-13 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heat in ST. CLAIR, MICHIGAN
From 14-JUL-13 12:00:00 to 19-JUL-13 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heat in LIVINGSTON, MICHIGAN
From 14-JUL-13 12:00:00 to 19-JUL-13 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heat in LENAWEE, MICHIGAN
From 14-JUL-13 12:00:00 to 19-JUL-13 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heat in MONROE, MICHIGAN
From 14-JUL-13 12:00:00 to 19-JUL-13 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heat in WAYNE, MICHIGAN
From 14-JUL-13 12:00:00 to 19-JUL-13 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heat in OAKLAND, MICHIGAN
From 14-JUL-13 12:00:00 to 19-JUL-13 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heat in MACOMB, MICHIGAN
From 14-JUL-13 12:00:00 to 19-JUL-13 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heat in WASHTENAW, MICHIGAN
From 14-JUL-13 12:00:00 to 19-JUL-13 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heat in GENESEE, MICHIGAN
From 14-JUL-13 12:00:00 to 19-JUL-13 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Heat in SAGINAW, MICHIGAN
From 14-JUL-13 12:00:00 to 19-JUL-13 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations