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E PA/NJ/DE Winter 2024/25 Obs/Discussion


JTA66
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Today will be our last milder day as a cold front and some rain will cross the area later today into this evening. Close to normal temperatures tomorrow before a turn to much colder than typical for the weekend before Christmas. By Friday afternoon we may see some snow developing before the coldest weather so far this season arrives for the weekend. Highs should remain in the 20's Saturday through Monday with lows by Sunday night not too far from 10 degrees above zero.

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9 hours ago, Ralph Wiggum said:

Can the GGEM be right just this one time? A Christmas miracle?

Even if we don't get a Christmas miracle this year, we'll always have 1998. On the morning of Dec. 22, temps were in the mid-60s before dropping drastically throughout the day. That set the stage for an unexpected snowstorm on Dec. 23-24.

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CMC has ging on by a thread for Christmas Eve/Day but continues to slow precip advance so subsequently it allows the BL to warm enough and the snow chart keeps ticking N.

But let's not get ahead of ourselves....NAM says we whiten things Friday possibly enough to last thru the holiday

namconus_asnow_neus_18.png

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With our 0.26" of rain last evening, we are now above normal for rain this month and up to 95% of normal precipitation for the year to date. Today starts a stretch of at least the next week averaging at or below normal temperatures for Christmas Week. We will also have a couple chances of snow. The first chance is tomorrow afternoon into the night and again on Christmas Eve. It will turn very cold over the weekend with low temperatures in the single digits for many by Monday morning. Today also marks the 15th anniversary (2009) of one of our larger Christmas week snowstorms when between 10" to 15" of snow fell across the area. That snow led to one of our 2 most recent White Christmas (last one was in 2012).

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11 minutes ago, Physicsteve said:

I’m hugging the 12k and tossing the 3k. That’s gotta be allowed in the weenie rulebook somewhere, right?

I semi- take this back. I’m not taking any flakes for granted and appreciate whatever we get whenever we get it. Desperate times calls for desperate perspective. 

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Agreed. If anything, do we cash in more on the decaying/transferring low or developing coastal? Would more (or less) on the front end indicate the amount of coastal involvement or are they not correlated? I guess Im rooting for front end and then go from there. Delayed=Denied. Page 2, paragraph 3. 

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Actually some decent agreement on the 12z models with the IVT over eastern PA/northern NJ. The wild card is the initial wave of precip tomorrow afternoon. Some models have it, some don’t. If that’s stronger than expected we could get an extra inch or so.

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