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      An early freeze?

      The coldest air of the season will be flowing into the region Friday and Friday night, and some areas could experience freezing temperatures by Saturday morning!

      We're forecasting a low of 34 in Saginaw and Flint, but some rural locations away from the warming influence of Lake Huron and Saginaw Bay could drop below freezing for a low temperature.

      If a freeze were to occur in these areas, it would happen 2-3 weeks ahead of schedule according to the dates shown in image 1.

      The reason for the cold snap: A strong, northerly flow between a big trough of low pressure over southeastern Canada and a ridge of high pressure in the northern Plains states (image 2).

      In fact, this northerly flow will be cold enough to produce some lake-effect rain showers over portions of Mid-Michigan late tonight and Friday morning.

      This cold snap, however, won't last.

      After a seasonably cool weekend with highs in the middle to upper 60s, highs in the 70s and 80s will return next week.