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An Alberta Clipper will pass north of Alabama tomorrow, and bring some scattered clouds and a surface front, but no rain. The feature will bring a nice snow event to places like Indianapolis, Cincinnati, and Washington, D.C… where several inches are possible. But, like most clippers do, no serious threat of precipitation around here. Following the dry frontal passage tomorrow night, a new surge of continental air drops in here on Thursday, which should drop afternoon temperatures by 5 to 10 degrees.
FRIDAY AND THE WEEKEND: Expect a warming trend and increasing moisture levels Friday through Sunday as a low level southerly flow develops. Despite the increasing moisture, there is no well defined mechanism to lift the atmosphere and produce rain, so I don’t expect anything more than a few isolated showers. The chance looks so small at this point it really isn’t worth a mention in the forecast. By Sunday, we will be in the low 70s, which is over ten degrees above normal for early December in Alabama.
TO THE WEST: A major winter storm will slam the southern Rockies this weekend, making the skiers very happy. Significant snow is likely down into the mountains of Arizona and New Mexico, with more rain for places that don’t get much wet weather (like Phoenix).
That western storm will take its time in moving out, and by the middle of next week it will weaken rapidly as it passes north of Alabama. It will drag a front through here on Wednesday of next week, which should bring a few showers, but unfortunately it doesn’t look like a major rain event.
LONG RANGE: Out into voodoo country, the GFS continue to show the next decent chance at some beneficial rain in the December 15-16 time frame thanks to a sharp short wave rolling through here. A brief shot of much colder air will follow that, if the model is correct.
REALLY LONG RANGE: I wrote my thoughts on the upcoming winter here on the blog back on October 23… and quite frankly, I don’t see any reason to change my opinion. Read that post here.
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