Sunday, July 10, 2016

Heat and Humidity Will Help Fuel Storms This Week

It's July so it should be expected that the nice, comfortable days won't last.  And that is going to be the case for the upcoming week, and possibly for the remainder of the month.

A strong ridge of high pressure over the center of the country has focused most of the storm activity to the north over the High Plains.  Early Sunday morning a strong storm complex moved through Minnesota, Iowa and West-Central Illinois.  Those storms didn't reach Northern Illinois but we did have the cloud cover during the afternoon.

Thunderstorms have once again developed over North Dakota and will ride right down the edge of the upper level ridge by Monday morning.  The only difference is that a warm front will be pulling through Northern Illinois and Southern Wisconsin overnight.  This should help to focus the storm activity more to the north over Wisconsin than to our west.

Most of Monday will be dry with the warm front to the north.  However, weak waves of low pressure riding along in the jet stream could help focus overnight thunderstorm activity in our direction.  The first coming Monday night and the second coming Tuesday night.

Following the warm front temperatures will quickly warm over highs we had this weekend.  Pending any major cloud cover Monday, high temperatures have a good chance of reaching 90 degrees.

By Tuesday evening, a cold front slides closer to Wisconsin with a chance for a few stronger thunderstorms developing late Tuesday and Tuesday night.  I also believe we'll have a chance for thunderstorms Wednesday, some strong, with the actual passage of the cold front during the afternoon.

Following the front there will be a brief break in the humidity Thursday and Friday, but it returns late in the upcoming weekend and could be in full force by next week.

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