Excessive Heat Watch for metro Phoenix expected

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PHOENIX – Very hot weather is going to build fast this week over the deserts of Arizona.

In the Valley we’ll see highs on Wednesday ranging from 110 to 115 degrees. It will be even hotter in some of the desert areas of our state, especially along the Colorado River.

As a result, the Weather Service has issued an Excessive Heat Watch for much of southwest Arizona including Phoenix for Wednesday.

It’s quite likely that watch will be updated to a Heat Warning by Tuesday afternoon.

Coupled with that, the sunshine and heat are causing ozone problems. The Arizona Department of Environmental Quality has issued Ozone Advisories for central Arizona, including Phoenix for Tuesday and Wednesday.

On those days, especially the late afternoon and evening hours, ozone levels are expected to be in the unhealthful range. Wednesday’s forecast levels could be the highest in some time.

The only bit of good news for our state in the weather department is a reduction in wind speeds.

Finally that storm system passing to the north of us has moved far enough away that the winds dropped Monday along our wildfire lines.

The forecast is for the relatively light winds to hold for a couple of days and that will help firefighters continue to get an upper hand on these blazes.