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Dense fog, thunderstorms and a seasonably cool Christmas - The Galveston County Daily News: Weather Watch

November 25, 2015

Dense fog, thunderstorms and a seasonably cool Christmas

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Posted: Friday, December 20, 2013 4:58 pm

We will continue to see a wide variety of weather leading up to Christmas Day. Onshore winds and increasing humidity levels are contributing to fog formation and the issuance of a dense fog advisory for Galveston County through Saturday morning. The fog may cut visibility to 1/4-mile or less at many locales.

Meanwhile, an advancing cold front and a potent upper-level system will combine to bring widespread thunderstorm activity tonight over sections of Texas and tomorrow over Galveston County. Severe weather is likely for places north of the immediate Galveston County area. Such activity is a little less likely near the coast, as an upper-level “cap” (or layer of warm air above the surface) may suppress activity to some degree. Still, an upper-low tracking east into Texas may be enough to break the cap, so severe storms cannot be ruled out completely for our area.

Weather next week, heading into Christmas, should be much better if not somewhat on the chilly side. A light freeze is likely over the northern half of the county on Christmas Eve with highs remaining in the 50s under mostly sunny skies. The average temperature range on Christmas Day in Galveston is a low of 49 degrees and a high of 63. Readings should be just a little cooler on that this year, with lows in the 40s and a high near 60 degrees. Some increase in cloudiness and a slight chance of showers may appear late on Christmas Day, but overall the outlook is fairly promising for the Holiday.

Below are some links related to this blog:

Graphic on fog outlook from Houston-Galveston NWS

Graphic on severe thunderstorm outlook from Houston-Galveston NWS

Day 2 thunderstorm outlook

Weather analysis map and radar

5-day precipitation outlook