Wednesday, December 30, 2009

NOWCASTING! New Years Storms To Bring Rain/Snow Mix

Well, the models have been up and down with this storm. The NAM has trended warmer, the CMC is a little cooler, and the GFS is the same. They just cannot get a grip. Well, for one thing, we are done with the models. It's time for NOWCASTING! Let's take a look at the current radar:

That's pretty impressive. I didn't think that there would be that much precip. We can get some snow out of this but we need temps to stay where they are right now or drop. It will be hard for them to drop because of the cloud cover over us right now. Temps are in the high 20s Pine Barrens to near freezing at the beaches. I have observed some temps rise which is not good if you want snow. If temps can hold steady we may be able to get a couple of inches of snow. See my map below.
Everything should begin around 4 or 5am. It will be a fast mover so when the ball drops and fireworks go off it should be clear or ending. Here is my forecast:
Again, not much. Mostly a mix of rain and snow to the east of the Winslow area. Immediate shore might even changeover to rain. West of Winslow will see snow changing over to a mix. Everyone might see a quick changeover to all rain at one point. It won't be big, but roads may get a little slick. Overnight into 2010, there will be a lull in the action (Ball dropping and fireworks look good right now, temps low 30s) and then more snow/rain showers will pick up. Not as much as the first wave, only maybe a dusting possible. Mummers look good right now with some sprinkles or flurries and temps mid 30s. Flyers in Boston will see some showers with a chance of a flurry and temps mid 30s.
I think this is a good forecast unless the storm changes overnight. It will have to be watched.
Updates through tomorrow at www.twitter.com/sjwcmain.

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