Monday, December 12, 2016

Roller Coaster Week

Forecast Discussion:
A weak cold front moved through the area during the early morning hours and helped to clear away the areas of dense fog we experienced across the area late last night and early this morning. Much drier air, as evidenced by dew points in the 40s, has also moved in behind the front. The front is washing out to our south. Afternoon highs under a mainly sunny sky will climb into the 60s. Lows tonight will drop back down into the 40s and 50s under a mainly clear sky. Areas of fog will be possible.

Afternoon highs on Tuesday will soar into the lower 70s under a partly cloudy sky. Another cold front will traverse the area late Tuesday into early Wednesday allowing for cooler conditions to settle back into the area for Wednesday and especially Thursday as stronger cold air advection (horizontal transport of air) occurs. Highs Wednesday drop back into the 60s, highs on Thursday drop back even further into the 50s. Thursday's chill will be brief as southerly winds quickly return by Friday ahead of a strong storm system that will be traversing from west to east across the center of the country. With the return of southerly winds highs will rebound into the 70s on Friday and Saturday ahead of a strong Arctic cold front that looks to arrive late Saturday night into early Sunday morning.

Some light rain showers and/or drizzle cannot be ruled out on Thursday/Friday as a weak overrunning pattern sets up over the area (warm, moist air being forced to rise up and over a cooler air mass at the surface).

Saturday night's cold front will have the potential to bring Austin its first official freeze of the season...temperature trends will need to continue to be monitored over the next several days.

Forecast Temperature Map for this coming Saturday at Noon across South Central U.S.



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