#1280 Postby srainhoutx » Wed Dec 14, 2016 9:16 am
Confidence increasing that we will warm up Friday into Saturday ahead of the next shot of modified Arctic Air arrives late Saturday night into early Sunday. The big concern immediately with this next Arctic boundary are the unusually cold wind chill readings expected even here in SE Texas where those wind chill valued could be in the low to middle teens to low 20'sF for feels like temperatures.
The next issue is a low confidence forecast regarding a pesky SW upper low/trough near the Baja Peninsula next Monday into Tuesday. At the surface, temperatures will be cold, but a very noisy SW flow aloft above the shallow surface cold air tends to make for a cloudy and unsettled pattern. The last episode where we experienced this sort of set up brought 11+ inches of rain to Texas City a couple of weekends ago and surface temperatures were stuck in the mid 50's as a Coastal low/trough developed as you recall. This time temperatures are expected to be about 15 to 20 degrees colder which creates problems, particularly across the Hill Country and North Texas with the potential of freezing rain/sleet possibly mixed with a few flakes of snow, depending on how cold aloft the temperatures are. This is the timeframe that we will need to watch a bit more carefully as we get closer to the weekend and early next week. As KHOU Chief Meteorologist David Paul posted on the KHOU Weather Forum yesterday afternoon, nothing to loose sleep over, but we will be watching.
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