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The Winter 2010-11 NYC/PHL Medium Range Thread


am19psu

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Guest PDIIREDUX

It was negative at times, but there were literally NO storms anywhere.

That probably means no 50/50 low as well.

There was a RAGING +AO along with an active sun IIRC too.

Basically the opposite of what we could have this winter as they AO seems to go quite - in the near future and the sun isn't cooking our atmosphere right now.

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Guest PDIIREDUX

Worst winter that I remember. Was that also a Strong La Nina?

no, basically La Nada, which meant no STJ and no active Polar Jet either. Basically it was the WORST possible enso state combined with the +AO.

It was worth it for the 2002-2003 and my storm!

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no, basically La Nada, which meant no STJ and no active Polar Jet either. Basically it was the WORST possible enso state combined with the +AO.

It was worth it for the 2002-2003 and my storm!

That's not a bad ENSO state at all really. There have been many good winters that were close to neutral!

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Guest PDIIREDUX

Yes, and that went along with JB's "vodka cold" , "Russian traffic cop", and other saying that I have thankfully forgtten about.

well, as you say, around neutral is good, but everything else went to the crapper.

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Our snowstorm is still a lakes cutter, but that can change back. Hope it's not a winter where we get cold but followed by rain all the time.

That storm would start out as snow and change to rain. The long range pattern after next week's lakes cutter is looking really good.Nice - EPO at the end of the run. Lets hope the Euro agrees with the GFS.

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Right -- and that's the point I'm making. Just because there's a -NAO on the board doesn't mean guaranteed cold. 01-02 was the "cold is just 10 days away winter" and we kept seeing blocks show up on the mid/long range only to become east based for a while and then just a regular ol' torch.

Obviously there are other factors going on this winter (Nina vs. Nada) but basically the point stands that just because a -NAO shows up on some chart doesn't mean the cold is locked or will be.

The other factor too is that many events occur during pattern change times, so if you're staying locked into one pattern or another, its doing one no good. I also did a presentation at out winter weather workshop that nearly all of our massive winter events (10" or more) have occurred when the gwo has been in the upper half of the gwo phase diagram (When the relative aam is positive). If September were January, it would be a no go.

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That's not a bad ENSO state at all really. There have been many good winters that were close to neutral!

Enso neutral winters are really girl with the curls winters. For each 1993-94, there is a 1931-2. This is threading an outlook needle on a couple of levels, but enso neutral negative winters for bigger events is better than enso neutral positiv in PHL

Number of 6 inch or greater single events since 1949-50:

Enso Neutral.............21.............22 seasons

Enso Neutral cool........15.............12 seasons

Enso Neutral warm........5..............9 seasons

Really Enso Neutral......1........... ..1 season

Number of 10 inch or greater single events

Enso Neutral........8.............22 seasons

Enso Neutral cool...6.............12 seasons

Enso Neutral warm...2..............9 seasons

Really Enso Neutral.0..............1 season

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Our snowstorm is still a lakes cutter, but that can change back. Hope it's not a winter where we get cold but followed by rain all the time.

Long range expert Jim Witt's calendar is having an awesome year so far! Heavy storms 11/4-5 verified, fair and mild the last two days verified, rain 11/26 looks to verify, rain 12/1 looks to verify, and snow to rain 12/7-8? Says heavier snow more possible 12/12-13 FWIW.

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There was a RAGING +AO along with an active sun IIRC too.

Basically the opposite of what we could have this winter as they AO seems to go quite - in the near future and the sun isn't cooking our atmosphere right now.

There's no doubt we'll go cold this winter at some point and those cold shots will be significant. This pattern, right now, does not support it. It may in time...but it may be later in December -- perhaps towards Christmas, before things tank.

Look at the cold in the Northwest and Upper Midwest -- there's no doubt cold shots this winter will be forthcoming...it's not favorable for it at the moment as the pattern says SW flow and lakes cutter parade.

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There's no doubt we'll go cold this winter at some point and those cold shots will be significant. This pattern, right now, does not support it. It may in time...but it may be later in December -- perhaps towards Christmas, before things tank.

Look at the cold in the Northwest and Upper Midwest -- there's no doubt cold shots this winter will be forthcoming...it's not favorable for it at the moment as the pattern says SW flow and lakes cutter parade.

I don't even think we have to wait that long. Just a couple runs ago, the GFS was having a nor-easter. Let's see what develops.

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