Friday, December 18, 2009

12/18 winter storm update

Just a quick update on the timing of the snow/mix/rain transition. The transition gradient will be very tight. Greensboro/Winston Salem may see all snow with up to a foot of snow possible. Durham will likely see moderate snow transition to zr later tonight, and those just SW of Raleigh will see very little snow at all.

So my forecast for the triangle is difficult, because depending on where you live in the triangle will depend on how much winter weather you see. The NW will see more snow.. and the SE will see less snow. If the High pressure had been stronger and holding steady the whole region would've seen a historic snow storm... But instead it's this:


Friday afternoon: Snow, possibly mixed with light rain. The snow could be moderate at times in the afernoon. High 36

Friday night: Snow changing to sleet and ZR between 7 PM and 9PM and then all rain after 9PM. The snow could be heavy during the evening. Low 30

Saturday: A chance of freezing drizzle/drizzle and flurries. High 35

Possible snow accumulation totals within the triangle this evening:

Chapel Hill: 2-4 inches
Durham: 2-4 inches
Cary: 1-2 inches
Raleigh: 1 inch
SW of Raleigh: < 1inch

The models are all over the place with the Christmas Eve/Christmas storm.... Showing it as an all rain event at this time. But I can't out rule a major winter storm with this system.

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