Warm and humid air invaded western Wisconsin on July 17th and remained in place for the next three days. Two people perished as a result of the excessive heat and at least eight other were treated for heat related illnesses. During this stretch, afternoon heat indices routinely topped out between 110 and 120. Little relief occurred at night, as overnight lows remained in the 70s. Most of the counties across western Wisconsin opened cooling centers.

Excessive Heat in BUFFALO, WISCONSIN
From 17-JUL-11 13:00:00 to 20-JUL-11 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Unknown

For an extended period between the 17th and 20th, afternoon heat indices routinely topped out between 110 and 115 with overnight low temperatures remaining above 75 degrees.

Excessive Heat in TREMPEALEAU, WISCONSIN
From 17-JUL-11 13:00:00 to 20-JUL-11 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Unknown

For an extended period between the 17th and 20th, afternoon heat indices routinely topped out between 110 and 115 with overnight low temperatures remaining above 75 degrees.

Excessive Heat in CLARK, WISCONSIN
From 17-JUL-11 12:30:00 to 20-JUL-11 16:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Unknown

For an extended period between the 17th and 20th, afternoon heat indices routinely topped out between 110 and 115 with overnight low temperatures remaining above 75 degrees.

Excessive Heat in ADAMS, WISCONSIN
From 17-JUL-11 10:00:00 to 20-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Unknown

For an extended period between the 17th and 20th, afternoon heat indices routinely topped out between 110 and 115 with overnight low temperatures remaining above 75 degrees.

Excessive Heat in JUNEAU, WISCONSIN
From 17-JUL-11 10:00:00 to 20-JUL-11 17:00:00 (CST-6)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: ASOS

For an extended period between the 17th and 20th, afternoon heat indices routinely topped out between 110 and 115 with overnight low temperatures remaining above 75 degrees. The highest recorded heat index was 114 at Volk Field on the 18th with a dew point of 85.

Excessive Heat in MONROE, WISCONSIN
From 17-JUL-11 13:00:00 to 20-JUL-11 17:00:00 (CST-6)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A lady with undelying medical conditions passed away from effects caused by the excessive heat on the 23rd. The lady did not have air conditioning in her home. At least six other people were treated for heat related illnesses. For an extended period between the 17th and 20th, afternoon heat indices routinely topped out between 105 and 110 with overnight low temperatures remaining above 75 degrees. The highest recorded heat index was 108 on the 18th at Sparta.  Dew points hit 80 degrees for a short period on the 18th.

Excessive Heat in TAYLOR, WISCONSIN
From 17-JUL-11 13:00:00 to 20-JUL-11 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

For an extended period between the 17th and 20th, afternoon heat indices routinely topped out between 105 and 110 with overnight low temperatures remaining above 75 degrees. The highest recorded heat index was 111 at Medford on the 17th.  Dew point readings hit 82 on the 17th as well.

Excessive Heat in GRANT, WISCONSIN
From 17-JUL-11 11:00:00 to 20-JUL-11 18:00:00 (CST-6)
Property damage: 25.00K
Crop damage: 0.00K
Reported by: ASOS

For an extended period between the 17th and 20th, afternoon heat indices routinely topped out between 110 and 115 with overnight low temperatures remaining above 75 degrees. The highest recorded heat index was 117 on the 18th by the automated weather observing equipment at Boscobel.  The highest dew point observed was 82 on the 18th.

Excessive Heat in JACKSON, WISCONSIN
From 17-JUL-11 12:00:00 to 20-JUL-11 17:00:00 (CST-6)
Property damage: 6.00K
Crop damage: 0.00K
Reported by: AWOS

For an extended period between the 17th and 20th, afternoon heat indices routinely topped out between 105 and 110 with overnight low temperatures remaining above 75 degrees. The highest recorded heat index was 111 on the 18th when the dew point climbed to 81.

Excessive Heat in LA CROSSE, WISCONSIN
From 17-JUL-11 12:00:00 to 20-JUL-11 18:00:00 (CST-6)
Property damage: 7.00K
Crop damage: 0.00K
Reported by: ASOS

At least two people were treated for heat related illnesses. For an extended period between the 17th and 20th, afternoon heat indices routinely topped out between 110 and 115 with overnight low temperatures remaining above 75 degrees. The highest recorded heat index was 113 on both the 17th and 18th.  The highest dew point temperatures reached 81 both on the 18th and 19th.

Excessive Heat in RICHLAND, WISCONSIN
From 17-JUL-11 12:30:00 to 20-JUL-11 17:30:00 (CST-6)
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Unknown

For an extended period between the 17th and 20th, afternoon heat indices routinely topped out between 110 and 115 with overnight low temperatures remaining above 75 degrees.

Excessive Heat in VERNON, WISCONSIN
From 17-JUL-11 13:00:00 to 20-JUL-11 17:00:00 (CST-6)
Property damage: 8.00K
Crop damage: 0.00K
Reported by: AWOS

For an extended period between the 17th and 20th, afternoon heat indices routinely topped out between 105 and 110 with overnight low temperatures remaining above 75 degrees. The highest recorded heat index was 109 on the 18th when dew point readings hit 83.

Excessive Heat in CRAWFORD, WISCONSIN
From 17-JUL-11 13:00:00 to 20-JUL-11 16:00:00 (CST-6)
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An elderly lady lost her life when the air conditioning failed in her mobile home. Her body was found on the 20th with the date of her death unknown. For an extended period between the 17th and 20th, afternoon heat indices routinely topped out between 110 and 115 with overnight low temperatures remaining above 75 degrees. The highest recorded heat index was 116 in Prairie du Chien on the 19th when the dew point hit 82.