A: Vast positively tilted Trough will remain in place across eastern alaska and westren canada over the first 15 days of the December, helping to promotte a neutral PNA signal. it is unclear whether or not this will reverse its self
B: NAO Negative - Possibly strongly so. Blocking may at times spread across the Davis strait, Baffen Island, northern Quebec and into northeast canada.
C: strong 50/50 low. this should also help maintain the blocking to the north of it, enhancing the -NAO singal. the presence of the 50/50 low is increasingly supported by the cxooling of the SSTA near Newfoundland.
D: Above normal snowfall.
E: Much below Normal temperatures (-1.5 to -2.5F)
F: Below Normal temperatures (-0.5 to -1.5F)
G: below Normal Snowfall
H: Above Normal temperatures, and much drier conditions.
I: Much above normal snowfall
J: below normal snowfall first 15 days, then above to much above normal snowfall in southern sections and near normal snowfall north.
January 2004...
A: Pacific pattern Reverses, strong alleutian low develops.
B: blocking develops downstream from the strong Alleutian low across western canada promoting a solidly (though not overwhelmingly) positive PNA pattern.
C: NAO strongly negative.
D: Strong North Atlantic Blocking building westward may ocassionally hook up with the western north america ridge forcing an extreme southward displacement of the PV in the means until the pattern breaks down. this may lead to a severely supressed storm track at times.
E: Brutally Cold (-3.0 to -4.0F); near normal snowfall
F: Much Above normal snowfall, and the poitential for at least one major snow event during the month.
G: Above Normal temperatures; near normal snowfall
H: Below Normal temperatures (-1.0 to -2.0)
J: Brutally cold (up to -5.0 degrees below normla); below normal snowfall.
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