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Dec 24-28 winter weather period


Ji

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12Z Canadian shows a nice rainstorm where GFS has nothing

BIG rainstorm. Drives it up the Apps and then jumps to the coast it looks like.

3 GEFS members have a (rain)storm along the coast on Christmas that gives us precip. A few more have a storm that stays more surpressed. The rest have nothing.

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though I don't necessarily disagree with you, I think that situation happens when we go from cold to warm

I can't recall too many winters where we switched that fast from warm to cold....in fact, I can't recall any (2/07 is a maybe)

1999-2000 would be the most recent example I can think of beyond your February 2007 example...1984-85 is another. Agreed they haven't occurred as often but they occur I suppose.

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Of the course the Euro is going to punt. If not today, tonight. It hasn't been steady worth a damn. This is an untenable pattern. There is nothing to look forward to. Everytime we have to depend on A+C -B divided by D to get what we need to happen, it never works out. We need a solid pattern and not luck. Would I be happy with 1 to 2 inches of slop followed by rain...of course I would be and I'll keep watching, but for what really. It's ok to be optimistic, but I'm going with realistic and work from there.

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Does anyone know of a website with a good summary of conditions for each winter locally? Since I've been away from the Mid-Atlantic for a good chunk of my adult life and I don't really remember details in the 80s (since I was a kid), such a website would be very helpful.

I like these monthly summaries, but I don't know the link to all of them. I can only find them individually through a google search ("december+2005+BWI+weather" worked). If anyone knows of a database to all of them, I'd like a link too.

http://www.nws.noaa.gov/os/presto/presto2005/2005dectable.pdf

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Of the course the Euro is going to punt. If not today, tonight. It hasn't been steady worth a damn. This is an untenable pattern. There is nothing to look forward to. Everytime we have to depend on A+C -B divided by D to get what we need to happen, it never works out. We need a solid pattern and not luck. Would I be happy with 1 to 2 inches of slop followed by rain...of course I would be and I'll keep watching, but for what really. It's ok to be optimistic, but I'm going with realistic and work from there.

I'm thinking it's time to be happy for the people in Kansas and move along....

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I don't know

in 89-90, a vortex migrated into the GOA and that was it...winter over (until March).....ENSO wasn't a factor though there was a NIna hangover.....but I am guessing there was no significant forcing coming from the Pacific, so other factors took over....A nina profile took over and there was nothing to dislodge it.....

This winter the predominant default in the Pacific is probably going to be Nina driven...even with this +PNA that isn't much use, it looks like we are going back to a +EPO look next week....looking back at some other Nina years like 99-00, I think any real pattern changes are going to have be led by the Atlantic...I know Wes has been driving this home for while now and not that I didn't accept it, but I thought we could operate ok with a bad Atlantic....we can't other than fluky events and maybe in more climo favorable periods we can get a bit luckier with something digging and closing off....but until we see blocking I think we are pretty much screwed....and I think that has to happen 1st and then the PAC will follow....I don't know how that can/will evolve...but the MJO is currently stalled in the COD in the most wretched phases so I imagine until that restrengthens and progresses into the later phases, there won't be much change

For now I am staying with HM's call that change will come after mid January. I am assuming he is seeing changes in the Atlantic side. Anything before then is a gift.

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BIG rainstorm. Drives it up the Apps and then jumps to the coast it looks like.

3 GEFS members have a (rain)storm along the coast on Christmas that gives us precip. A few more have a storm that stays more surpressed. The rest have nothing.

It is interesting that the ones that have precip with the storm are rainstorms. I think they illustrate how crappy and thread the needle the pattern is.

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HM was pretty bullish on the January 10th period as were some others....Not sure that is still a tenable period though still 3 weeks away

That time period fit the earlier D+11 analogs. I haven't looked closely at them lately. Too much other stuff to do like writing cards. I don't like the pattern I see for early Jan but as you say it's really early to make definitive calls.

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these go back to 89..so not helpful for most of the 80s.....gymengineer has a bunch of newspaper articles....but I don't really know of anything that summarizes those winters other than memory and data and the KU book

http://www.nws.noaa....index2011.shtml

Thanks!

It is interesting that the ones that have precip with the storm are rainstorms. I think they illustrate how crappy and thread the needle the pattern is.

Yup. Just not enough cold air around to make this an easy snowfall, even with a weak/surpressed system.

euro out to 42

Euro! Euro! Euro!!

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Nah. You set yourself up. I hope other posts are removed, and/or put in their proper locations too other than just mine.

wasnt talking about that really.. just in general. they're all down on the storm while we're all weenieing it up etc. i brought your post back--didnt remove it. but we've got play by play to do so we should probably stop. ;)

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pretty much every GFS ensemble member has the MJO stalling in phase 5 for another 2 weeks or longer....

If we can't get that thing to crank back up and start moving to the favorable phases then it will be a long winter indeed regardless of what the immediate chances are.

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