Monday, July 22nd, 2019 through Monday, July 29th, 2019
Ozone: 8-Hour average Ozone concentrations will be a mostly Good for the first half of the week then a mixture of Good and Low Moderate through the weekend.
PM-2.5: 24-hour average Fine Particulate concentrations will be mostly Good.
After a week of hot and humid weather, we will enjoy a cooling down and Good Air Quality. We can thank a ridge of high pressure currently located over the Plaines states. While the center of high pressure remains to the west, we will be under a northerly wind profile. This will yield cooler and drier air through mid-week with Good Air Quality throughout the state. The only blemish during the first half of the week will be an upper air disturbance Tuesday afternoon which could produce some showers.
The ridge of high pressure will pass through the state early Thursday. The wind profile on the back side of the high will become more southwesterly. With the wind shift will come increasing temperatures and humidity for the weekend. We will be coming off several days of very clean air and any increase in ozone will be slow in developing.
Right now, the regional forecasters do not have much concern about any elevated ozone for this forecast period. Should it appear that conditions during the upcoming weekend start looking more threatening, the forecast will be updated.
Air Quality should be mostly Good to Low Moderate going into the next work week.