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Thread for 12/14 potential dusting, arctic air, and 12/17 potential slop


North Balti Zen

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Just now, WhiteoutMD said:

The start time I think is the biggest question I have. The earlier it starts the better we all do.  Whats everyone's feeling on that part of this?  I think is starts at 3-5 am metro dc. W

Warm air advection waits for no man.  Thinking it starts 12 am - 3 am.  Sneaky couple hours of all snow for everyone before it flips.  

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1 minute ago, WhiteoutMD said:

The start time I think is the biggest question I have. The earlier it starts the better we all do.  Whats everyone's feeling on that part of this?  I think is starts at 3-5 am metro dc. W

Last I saw, LWX was going for very late tonight or pre-dawn, so yeah, I guess 3-5AM-ish.

As a side note, check out the wide expanse of warnings/advisories/watches on the NWS page right now, they cover from about Idaho to the East Coast!

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9 minutes ago, WhiteoutMD said:

The start time I think is the biggest question I have. The earlier it starts the better we all do.  Whats everyone's feeling on that part of this?  I think is starts at 3-5 am metro dc. W

My question is when does it end.  I'm actually thinking we might get a dry afternoon?  And mild?

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2 minutes ago, Ji said:

you would of thought that the RGEM would fold by now but its gettting wetter. Weird

GFS shifted south a little bit. Especially with the heavier stuff to our north. But not even close to the RGEM. Normally I would toss the RGEM in a split second but the fact that it keeps trending wetter at very short range is not normally how the RGEM busts. 

If you compare the 3k (or any nam) to 6z, all shifted the heaviest axis south. 

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2 minutes ago, Bob Chill said:

GFS shifted south a little bit. Especially with the heavier stuff to our north. But not even close to the RGEM. Normally I would toss the RGEM in a split second but the fact that it keeps trending wetter at very short range is not normally how the RGEM busts. 

If you compare the 3k (or any nam) to 6z, all shifted the heaviest axis south. 

Perhaps recognizing the depth of teh cold air?

And yes, RGEM is a bit worrisome

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3 minutes ago, WinterWxLuvr said:

Exactly why we don't cheer for ice.

I despise ice. Luckily I don't get much of it here. Surface cold scours out quick in most cases unless there is a legit high and CAD.

For this event its pretty clear there will be little to no snow anywhere, so freezing rain is the main issue. Places up in N MD especially could see a few hours of icing before low level temps rise, but in this type of set up its not likely to be a prolonged icing.

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2 minutes ago, C.A.P.E. said:

I despise ice. Luckily I don't get much of it here. Surface cold scours out quick in most cases unless there is a legit high and CAD.

For this event its pretty clear there will be little to no snow anywhere, so freezing rain is the main issue. Places up in N MD especially could see a few hours of icing before low level temps rise, but in this type of set up its not likely to be a prolonged icing.

ice keeps drinks cold.  love ice

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Worst fears are being realized.  It was overcast for a while but sun is burning thru the overcast now, allowing temps to slowly rise.  This seems to happen a lot with these set-ups (overcast. then back to sun).  It'll be U20's to 30 by day's end at this rate, and then little decrease of temps by the time the real overcast spreads over us.

Every time I look at thermometer now, it's going up a few tenths of a degree.  (yeah, I know: then stop looking at thermometer!)

19.1 at 10:45 after morning low of 12.  Sun is out again 

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