Air quality alert in effect for hazardous air quality due to wildfire smoke
CBS 58 Hundreds of wildfires are currently burning in Ontario and dozens of fires are spreading in Minnesota's boundary waters. The collective smoke from all of these fires has moved from north to south across Wisconsin on Thursday. By Thursday evening you could smell smoke everywhere and the air quality has continued to get worse. Visibility has been reduced because of all of the smoke. At times, visibility is below a mile.
Here is current visibility that will update with time:
An Air Quality Alert remains in effect Thursday morning and will likely be extended through at least Friday morning for most of southeast Wisconsin.
The high levels of wildfire smoke that have reached the surface will stay with us all day Thursday. Even worse smoke is in place across northeast Wisconsin, including Door County. There are some indications that the smoke will get better during the day on Friday, but waves of smoke may return at times for the weekend.
As of 7 AM Friday morning, air quality numbers are above 500 for an Air Quality Index in Milwaukee County and close to that number in many other counties. These are the highest air quality numbers we have seen in recorded history in Milwaukee.
The heat will take a bit of a break Thursday with highs in the 80s. Part of the cooler temps are due to the smoke with the sun's rays having a hard time reaching the surface to warm us much. A lake breeze will also be in effect at times. The heat returns very quickly on Friday and Saturday with highs hovering around 90.
Humidity levels will drop a bit on Thursday into the mid 60s making it feel much less humid than it was Wednesday. The dew points will rise again on Friday and Saturday back into the upper 60s and low 70s making it feel tropical once again.
The heat index will definitely be manageable for any limited outside time on Thursday between 85 to 95 degrees. Heat index values could get as high as 100 both Friday and Saturday.
Download the CBS 58 Weather app to track the air quality alert and the temps to follow once the smoke leaves.