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Jan 11-12 Model/Forecasting Discussion


Ji

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I want to, but I'm already tired as hell

and it ain't from drinking watching the game!

Well this is the calmest i have been after a Ravens game all season, my chest never tightened once the whole game. I was hoping you were staying up because i love your precise EURO QPF. But you matters well get some rest because i have a feeling the next 2 days will be long and all over the place.

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I love Ian!!!

i'd think 3-6 isnt a bad thought process up in that area, though balt should be right on the line so i'd rather be northeast of balt... i'll try to include in my final call which was just dc area previous.. i might chicken out and wait till morning at this rate though

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this is one of the most hectic seasons i recall personally on the models

I agree, and feel for pros. I mean tomorrow a.m. is less than 24 hours before the first flakes could fall. Does LWX have to put up a watch for Baltimore on north or not? And as someone said earlier, imagine being in NY or Philly. Do you start tooting the horn for another major storm -- except during a work week day instead of the day of XMAS - or prepare for 4 inches, which most will consider a flurry compared to Dec. 26. .

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A good post from Messenger on NY/Philly Board that could also be of relevance here, especially Baltimore on north

"Guys not to interupt your excellent discussion.....but regarding the NAM v GFS handling fo the vort lobe at 48 hours on the Jersey Shore:

The NAM tried 3 different times with 2 different s/w complexes to do the exact same thing and failed since Thursday. I posted one of the maps from the other night that looks comically similar to tonights 0z NAM. It was the 12z NAM that delivered a big hit on Friday before it vanished. The other models had the energy getting out ENE instead of riding towards NYC. That's our difference here again tonight.

And to add further - even the "east' models blew it in the end. Inside of 24 hours it just kept slipping further east ahead of the models which led to a big bust up here with actual storm snows. Instead of the CCB being on land, it was 200 miles offshore all within the last 12-18 hours of modeling.

Just things to watch. If the euro nudges east at all tonight it's time to really be concerned about an eastward jump. "

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A good post from Messenger on NY/Philly Board that could also be of relevance here, especially Baltimore on north

"Guys not to interupt your excellent discussion.....but regarding the NAM v GFS handling fo the vort lobe at 48 hours on the Jersey Shore:

The NAM tried 3 different times with 2 different s/w complexes to do the exact same thing and failed since Thursday. I posted one of the maps from the other night that looks comically similar to tonights 0z NAM. It was the 12z NAM that delivered a big hit on Friday before it vanished. The other models had the energy getting out ENE instead of riding towards NYC. That's our difference here again tonight.

And to add further - even the "east' models blew it in the end. Inside of 24 hours it just kept slipping further east ahead of the models which led to a big bust up here with actual storm snows. Instead of the CCB being on land, it was 200 miles offshore all within the last 12-18 hours of modeling.

Just things to watch. If the euro nudges east at all tonight it's time to really be concerned about an eastward jump. "

Messenger whines about SNE busts a lot. Not sure what he is saying way out on Cape Cod has much bearing down here other than "it could bust" which we already know.

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Just thought I'd post Don's thoughts over here...

Some evening thoughts:

1) Right now, given the good run-to-run continuity of the ECMWF and the storm's somewhat overperforming down south, I favor a compromise between the 0z NAM and GFS. That means 6" or greater snows from Philadelphia north and eastward. New York, Boston, Worcester, and Hartford are among the cities that will likely see 6"-12" (and possibly more). This coming event will be a major reason I believe NYC and BOS will likely pick up 10" or more snow this month. Unfortunately, at this time, cities such as Ottawa and Montreal likely won't receive a significant impact (probably less than 2 centimeters).

2) The 3"-6" snowfall idea still looks good for Seattle for Tuesday into Wednesday.

3) Moderation still lurks in the longer-range. But the 0z GFS hints that the AO could be descending toward the end of the month.

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