While it will be seasonably cold and snowy Out West this week, warmth builds up the Eastern Seaboard once again thanks to a storm system over the Plains. It’s still a few days out but there strong model agreement arm surge peaks Christmas Eve supporting temps 30 above normal widely.
ALL-TIME December records may be threatened too with this warm surge.
Credit: AccuWeather
This certainly has ‘warmest Christmas Eve on record’ written all over it for many parts, if not the entire length of the Eastern Seaboard.
As well as the warmth, a lot of moisture shall run the southerly flow bringing a warm and soggy run up to the big day.
Credit: AccuWeather
QPF
While one system pushes through the Midwest and East over the next 36 hours, it’s the next beast slamming the West Coast now that will be responsible for this next batch of record warmth, only reinforcing the chances of this December being warmest in recorded history east of the Mississippi.
Credit: Tropical Tidbits
By 12z Wednesday that system is crossing the Plains and lifting the warmth northward ahead of the cold front lobe of arctic air dives south on it’s backside.
Credit: Tropical Tidbits
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Just look at how warm the GFS suggests it gets Christmas Eve.
2m temp anomaly
Credit: Tropical Tidbits
Credit: Tropical Tidbits
2m air temp for 18z Christmas eve.
Credit: Tropical Tidbits
70 is possible as up as NYC, upper 60s Boston!
Credit: Tropical Tidbits
Credit: AccuWeather
Record highs in jeopardy on Christmas Eve
| City | Dec. 24 Daily Record |
|---|---|
| Portland, Maine | 53 F from 1957 |
| Boston | 61 F from 1996 |
| Syracuse, New York | 58 F from 1965 |
| New York City | 63 F from 1996 |
| Philadelphia | 64 F from 2014 |
| Washington, D.C. | 69 F from 1933 |
| Charlotte, North Carolina | 71 F from 1982 |
| Atlanta | 72 F from 1984 |
The 25-35 above normal will be in stark contrast to the over the Rockies.
Credit: Tropical Tidbits
Projected ‘snow cover early Christmas morning sure will help bring night lows down. Some of the in the high elevation plateaus could see their first -20s or even -30s.
Credit: AccuWeather Pro
Though still considerably above normal Christmas Day, temps won’t be as extreme as Christmas Eve though the morning may open exceptionally mild and warmest of the day. Depends on the timing of the front.
2m temp anomaly Christmas day at 18z
2m air temp Christmas day at 18z
See this morning’s video for the discussion.
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