canderson

Mother of god

The GFs gives my parents 1” zr We had an ice storm over the turn of the millennium and were without power for 12 days.

It’s windier than forecast today, shocking. 40 mph gusts.

...COLD WEATHER ADVISORY IN EFFECT FROM 10 PM FRIDAY TO 10 AM EST SATURDAY... * WHAT...Very cold wind chills as low as 10 below expected. * WHERE...Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon, Perry, Schuylkill, and York Counties. * WHEN...From 10 PM Friday to 10 AM EST Saturday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken.

Stores were swamped last night so def not

It has Massachusetts sleeting. Overamped much?

Lock up that gfs run holy cow

0z GFS is running and contains new data from the hurricane hunters.

As depicted here, this storm would go down as one of the biggest in American history I’d image as far as reach 12” snow.

Southern PA might’ve just gotten NAM’d. On phone so can’t see details well enough to be certain

Concerned? Doesn’t he mean ecstatic?

The NWS could use your help

The weenie suicide rate in the MA thread makes Wall Street in 1929 blush.

Feels like really nice 6-10” as a baseline storm for Harrisburg to me.

Extrapolation says game on

This setup reminds me of the New Year 2000 ice storm in East Texas, but with a lot more sleet. We were without power 12 days then. it SUCKED.

Holy moly next eeek will be COLD.

Oh no you are smart to alert it. It spurs good discussion! Don’t die of heat exhaustion please!

Yup! 1/5 So here's my take on the impending #WinterStorm this weekend. Over the last few days, I've seen talk of this being a VA/Delmarva special & have been quiet due to skepticism on such an outcome. Let's take a step back & see why this could continue trending even farther north.. 2/5 First, the "50/50 Low" is displaced north. When combined with a trough axis going neutrally tilted over the Plains, this allows heights to rise over the Eastern States & gives the storm room to track farther north/west. A PNA ridge axis over the E. Pac also supports this.. 3/5 Next, the timing/interaction between a powerful, cutoff low within the #JetStream's southern branch & northern branch disturbance diving southward out of Canada will be vital. A sharper trough/more "digging" of the northern branch & faster ejection of the Baja low will.. 4/5 .. allow the systems to "phase," or join forces, sooner &, therefore, strengthen more quickly. Basically, the Baja low can get out ahead of & its energy then be absorbed into the northern branch of the Jet Stream sooner (EURO/CMC/ICON). A slower Baja low comes out flatter.. 5/5 .. & gets suppressed by the northern branch system due to a messier interaction with it (GFS). See the GIFs below for how each model handles the subsequent evolution of the system. My bet is on a continued trend N/W with mixing issues perhaps well into PA.. #StayTuned

@Eskimo Joe makes a great point about the CMC not being viable because it has the L running directly into and crushing the H

It’s a religious experience.

Epic, epic epic ice storm back home if this happens.

Those nam runs 2 days before that storm were insane. Then they verified.

CTP has this gem from this morning’s discussion Details will become increasingly clear over the next day or two, but now is the time to prepare for a potentially significant winter storm that will affect parts of Central PA Saturday and Sunday.

I don’t think it’ll be but winds. Breezy but not 35+. I’ll let someone way smarter correct me if needed!