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December 14/15 winter storm threat


Typhoon Tip

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I'm not trying to pin you down, but any feelings on timing? I am driving to Warren, Vt with my 4yo daughter Saturday afternoon (have to work in the morning) and I'm loving the "improved" forecast, but not from a driving standpoint...

Looks like late afternoon light snow breaks out...heaviest after midnight Saturday.

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Well yeaterday I did say it could come close to ACK which is still likely IMO. This may be more of a SWFE, or behave like one.

 

 

Which almost always move through a little quicker than modeled.  Shouldn't be many complaints come Sunday though.  Most will be seeing accumulating snow. 

NW MA looks good to stay all snow.  Keeping expectations low I'm happy w/ anything over 4"

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Nice thanks man. We still have two days, maybe we can tuck it in a bit more but there's obviously going to be a NW limit.

Either way, a nice snowy weekend. I've got my expectations set at 4", so anything more would be gravy.

Yep. I think BTV is too conservative in their thinking. Check out WPC's percentile graphics...found these today for the first time. Most of NNE is 6+ in their 75th percentile.

 

FYI 5% is least possible amounts, 95% most possible. 50-75% seems reasonable right now.

 

http://www.wpc.ncep.noaa.gov/pwpf/wwd_percentiles.php?ftype=percentiles&fpd=72&ptype=snow

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Can''t really complain about getting a few inches of snow prior to Christmas I suppose. Just trended the wrong way for us sadly.

Euro snow maps give us 4-6 with this run, I'll take that and run anyday.   I'm right up by the Merritt, so every mile inland will sure help...might only be 3 inches down at the beach

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Euro snow maps give us 4-6 with this run, I'll take that and run anyday.   I'm right up by the Merritt, so every mile inland will sure help...might only be 3 inches down at the beach

I'm right down by the post road so I don't have the fortune of being a few miles inland. 4-6 sounds great but I have my doubts, 2-4 sounds like a safe call for now, unless if we can get some models trend weaker with the primary.

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Can''t really complain about getting a few inches of snow prior to Christmas I suppose. Just trended the wrong way for us sadly.

I actually think it's trended much better for you in fairfield.. never was looking like more than a few inches at the sw ct shore.. now i think 4-6" down there is a really good bet.. even the city.. 

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I actually think it's trended much better for you in fairfield.. never was looking like more than a few inches at the sw ct shore.. now i think 4-6" down there is a really good bet.. even the city.. 

wow!  on second thought.. looking at the gfs extractions.. the surface torches quick for the shore. 

26 at onset of precip for BDR.  by 18z its 31 degrees after .24" QPF. but by 00z sunday its already 42 degrees? Have a hard time believing it gets that warm that quick. 

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Very odd. Even well inland to oxford waterbury GFS has surface temps of 35/36 during peak of storm with 850s below zero. 24 degrees up 11 degrees to 35 from 18z to 00z.. Only 3-5" during the light stuff. then plain rain. BDL barely stays at freezing throughout the event with mostly snow then some sleet.. amazing temperature gradient over CT.  

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LOL...you were saying the models would continue to trend SE...

 

And 45 minutes ago you were asking if it was too far NW this run.  Make up your mind.  I think it goes SE of the Cape, I don't care if the next run shows it over Albany.  If I'm wrong on that there will be a lot of others including your local NWS office too that talked about it being out at the BM just a few hours ago. 

 

12 hours ago it had me at -2 or -4 at 8h at 12z Sunday.  Now it's +8 to 10 C at the same time.  This run may be right, but I'll stick with the train of thought GYX and others had for another run.  It's a weak low slamming into brutally cold air.  We'll see how it goes.  If this is the trend...well there may be a lot more unhappy people around SNE come Sunday am.

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Very odd. Even well inland to oxford waterbury GFS has surface temps of 35/36 during peak of storm with 850s below zero. 24 degrees up 11 degrees to 35 from 18z to 00z.. Only 3-5" during the light stuff. then plain rain. BDL barely stays at freezing throughout the event with mostly snow then some sleet.. amazing temperature gradient over CT.

The resolution of the gfs is generally too coarse to handle boundary layer temps in these storms. I generally toss them.

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And 45 minutes ago you were asking if it was too far NW this run.  Make up your mind.  I think it goes SE of the Cape, I don't care if the next run shows it over Albany.

 

12 hours ago it had me at -2 or -4 at 8h at 12z Sunday.  Now it's +8 to 10 C at the same time.  This run may be right, but I'll stick with the train of thought GYX and others had for another run.  It's a weak low slamming into brutally cold air.  We'll see how it goes.

I wasn't worried about it being too far NW for me.  I am in a great spot.  It was just a general question with how much it had jumped...

 

Hope things work out for you...

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