Monday, December 7, 2009

Hope! (Forecast Update)

There is some hope we can pull out more snow than first thought. The cold and high pressure are a tad further south than originally forecast. This should cause the low pressure which is just inside of Nevada and training back into California to dip a bit lower into Texas.

From the Wichita, KS weather office an hour or so ago, then mention this too...

LATEST WATER VAPOR LOOP WAS SHOWING THE UPPER LEVEL POTENTIAL VORTICITY (PV) ANOMALY CONTINUING TO DIVE SOUTHEAST ACROSS CALIFORNIA COASTLINE. AIRCRAFT DATA IS EVEN SHOWING 130KT JET STREAK ON THE BACK SIDE OF THIS PV ANOMALY. THESE CONDITIONS WOULD FAVOR THIS SYSTEM TO STRENGTHEN AND CAUSE IT TOO TRACK FURTHER SOUTH. WE ARE STARTING SEE HINTS OF THIS ON THE LATEST GFS/NAM MODEL RUNS.




Let's take a second to look at the various forecast ensembles you can see that a significant number are southeast of the projected track favored by the NWS.

So while a track more slightly to the south and east would help us, it won't bring the blizzard to us. However we could potentially see our snow totals jump up to 3 to 5 inches rather than the minor 1 to 2 inches currently forecast.

Speaking of snow, system might bring a small front end dump of 1 to 2 inches before the rain comes. Watch for that just after the lunch hour tomorrow. Then rain before a quick swipe of another inch before dawn on Thursday morning.

I guess we still need to keep an eye on the system...

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