Dense fog rolled into Galveston County marking the dramatic start of the winter fog season (3/4 of all dense fog events in this area occur between November 15 and March 31).

The good news is that a weak cool front should move through today and this evening, bringing drier, somewhat cooler air, along with partly cloudy skies. The bad news is that this idyllic weather will last only a little while before we get into a prolonged spell of cloudy, wet and sometimes chilly weather.

The culprit will be a deep upper-level low expected to form over the southwestern U.S., causing unstable upper-atmospheric conditions and a shallow, but rather cold push of air expected to reach the coast by late Friday or early Saturday. With the low hanging back to our west and cold air at the surface, cloudy skies, chilly temperatures and periods of rain are likely and are expected to linger for a while in our area. Looking even further ahead, the latest GFS model suggests another push of fairly cold air and some rain leading into Thanksgiving Day. I guess it will be appropriate for the season.

 6-10 Day weather outlook

 7-Day upper-level forecast maps

7-Day surface forecast maps

Stan Blazyk is a life-long weather enthusiast, long-time Galveston resident and author of "A Century of Galveston Weather." He has written the weather blog for the Galveston County Daily News for more than a decade.

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