There as big a big solar storm & its impacts will be felt on Earth tonight & tomorrow night.
There is the potential the Northern Lights may appear as far south as our viewing area tonight (20% chance) & tomorrow night (25% change). The potential is much higher as your go northward, but it is still high enough to warrant a mention here. Be alert for the potential that they could appear for the first time since October 24, 2011.
It is unclear when they would appear, how far south or how brilliant they may be. This is a Geomagnetic Storm Watch issued by the Space Weather Prediction Center:
The Space Weather Prediction Center (SWPC) has issued G1, G2, and G3 geomagnetic storm watches for the nights of Wednesday, December 9, and Thursday, December 10. The brief period of a G3 storm alert on the night of December 9 could mean that the northern lights will be seen relatively far south in the continental United States. If it arrives as expected, that could mean a view as far south as parts of northern Illinois and Pennsylvania, among many other places across the country.
They were also seen in 2006 & 2003.
Areas of fog are likely after 1 a.m. tonight, some of it dense with visibility 0.25 mile or less. It will also be frosty with lows 28-33.
A few patches of black ice are possible on bridges & overpasses.
Thursday looks mostly sunny with south-southeast to south wind 12 mph & highs 54-60.
Some patchy fog is possible Thursday night with lows 36-41.
Friday should turn cloudy with highs 50-57 with a south-southwest wind 10 mph (more east & southeast in the north as a weak frontal boundary sinks southward to near Route 18).
Rain is likely Friday night through a chunk of Saturday. Highs of 49-55 Saturday will fall later in the day to the 40-45 range.
A few snow showers are possible Sunday morning with lows 31-36.
Southwest winds may gust 30-40 mph with isolated 40-45 mph gusts Saturday. West to northwest winds may gust 35-45 mph Saturday night & 30-40 mph for part of Sunday (before decreasing to 20-30 mph).
The next system is moving slower, so I cut out any mention of rainfall Wednesday night-Thursday & delayed the bigger warm-up.
It appears that rain may not impact the area until next Friday night after Saturday. Temperatures still look as it they will reach the 50s to 60 at the very end of next week to that next weekend.
December 19-January 5 is overall warmer to much warmer than normal with even some near/record warmth possible.
December 19-January 5 is also wetter than normal with risk of some severe weather a time or two.
Multiple severe events to outbreaks are possible across the South to Mid-Atlantic & even parts of New England.
The first real taste of winter? Mid-Janaury.
That still appears to be the time some pronounced cold airmass move in. This, combined with above normal precipitation signals potential of snow & ice.
Note the colder air moving farther south. We may still end up above normal mid-January into late January, but temperatures look like the coldest of the winter so far.
Note the tendency for above normal precipitatoin here as Pacific systems dive into Oklahoma & Arkansas then move northeastward.
End of January to early February? We turn warm again.
Trend is for above normal temperatures to dominate.
Above normal precipitation dominates (mainly rainfall).