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Mid week storm talk continued


mitchnick

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My only remaining hope for the Tuesday threat is that somehow the data from the reconaissance flights makes some huge dramatic difference in how it is modeled.

And that is as weenie a hope as it gets.

I wouldn't be shocked if tonight the the models jumped on the Euro idea of an initial slug of snow and then basically nothing else as the main storm misses us to the NW.

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Not really. The mega block hosed us pretty good early on.

The strength of the northern stream has hosed us this year (and lack of southern). This overrunning event initially had some eerie similarities to 2003 until the models have shown a weak high to the NE and the trough too far to the west. Bummer.

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0z tonight will bring us all back in. All solutions will take a hard right to the east.

This is probably why

MODEL DIAGNOSTIC DISCUSSION

NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD

1219 PM EST SAT JAN 29 2011

VALID JAN 29/1200 UTC THRU FEB 02/0000 UTC

...SEE NOUS42 KWNO ADMNFD FOR THE STATUS OF THE UPPER AIR

INGEST...

12Z NAM/GFS EVALUATION INCLUDING THE NEW CANADIAN AND PREFERENCES

...UPPER TROUGH FORMING ACROSS THE INTERMOUNTAIN WEST/ROCKIES

THROUGH THE PERIOD...

PREFERENCE: UKMET

THE NAM AND GFS HAVE POTENTIALLY SIGNIFICANT INITIALIZATION ERRORS

OVER BRITISH COLUMBIA...

WITH THE NAM TOO WEAK AND NORTHEAST WITH THE CENTER OF THE

DEVELOPING SHORTWAVE TROUGH...

AND GFS TOO STRONG AND SOUTH. THESE DIFFERENCES CONTRIBUTE TO

GROWING SOLUTION DIFFERENCES OVER TIME...WITH THE GFS LESS

AGGRESSIVE IN DIGGING THE TROUGH INTO THE ROCKIES...A SOLUTION

WHICH IS DISCOUNTED DUE TO INITIALIZATION ERRORS AND ITS RELATIVE

POSITION WITHIN THE GUIDANCE ENVELOPE. MEANWHILE...THE

NAM...ALTHOUGH WITH INITIALIZATION ISSUES OF ITS OWN BUT NOT AS

MUCH AS THE GFS...PRODUCES A FORECAST CLOSE TO THE MODEL CONSENSUS

INCLUDING ENSEMBLES...AND THUS IS CONSIDERED REASONABLE.

OTHERWISE...THE NEW UKMET HAS TRENDED TOWARD THE 00Z ECMWF BUT IS

NOT AS FAR WEST NOR AS DEEP WITH THE UPPER LOW BY 84 HRS...AND

GIVEN ITS MORE RECENT AND MORE ACCEPTABLE

INITIALIZATION...PRODUCES THE MOST PREFERRED SOLUTION.

I wouldnt be surprised if models are significantly different come 0z.

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Have model errors or new data ever really helped us to more snow?

actually, I believe 1/25/00 there was missing data off the SE coast that turned out to be crucial

I could dig it up somewhere, but others may also recall it being discussed afterward

but one out of how many storms admittedly ain't good odds

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From Roger Smith:

So far I am seeing the trend expected from earlier comments and continue to believe that heavy snow will develop Feb 2-3 across most of PA, northern half of NJ and all of NY and New England. The frontal zone will be a tight temperature gradient with the arctic front about BWI-ACY and the modified polar front about DCA to Cape May NJ. This would argue for sleet and freezing rain in a narrow east-west band that might reach into the first tier of southern PA counties and across s.c NJ with heavy snow north of that. I would include NYC and LI in the heavy snow band looking at the wall of cold air to the north, the northeast wind flow and the pressure transfer late 2nd from PA/MD border to south of LI. Long way out yet, and expect the models to intensify this storm on a track very slightly south of the current 12z GFS. Looks like this one could generate 3-4 inch per hour snowfall rates with some thunder-snow and totals 20-30 inches not out of the question in parts of central to eastern PA, northern NJ, metro NYC, LI, CT to 15-20 inches se MA (due to shorter duration more than intensity). Meso-scale banding from Long Island Sound across NYC into northern NJ may be the jackpot for amounts in this storm. If pressure drops much lower than progged, we could see 40-60 mph winds generated at height of the storm, on current models would say 30-45 mph. Would expect frequent thunder-snow reports in the NYC region night of Feb 2-3

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from LC:

This is going to be one BRUTAL storm.

Did I leave anything out?

Continue reading on Examiner.com: WEATHERAmerica Newsletter, Saturday, January 29, 2011 at 5:10 P.M. CT - Houston Weather | Examiner.com http://www.examiner....t#ixzz1CTPHRJc8

Not very promising for our area. I guess we knew that may be the case. I was more bummed out over his thoughts on the extended.

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All we need now is for someone to post about how the squirrels are extra-furry or the birds are all flying south as further signs for our impending doom...

You can mock this if you want, but the birds in Northwest DC certainly appeared to be a step ahead of the game during Wednesday's storm. I was sitting at home about 1 p.m. and all the sudden heard all this ruckus outside. Went to patio and the birds were whipped into a frenzy, all gathering in a tree a block away, squawking louder then I have ever heard them. I also recall a similar situation last year on the Friday morning before Feb. 6 began, and commented on it at time.

Now, I have no idea and not smart enough to k now whether I buy if animals have sixth weather senses, but recently I have moved into thinking that perhaps they do.

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You must not read his posts very often. He is a joke.

Yea, I've read that stuff through the years but I'm too much of a realist to buy into a lot of crap that goes beyond science. A lot of his posts go into the realm of what I consider for entertainment purposes only unless you believe in the "extra sensory" or "paranormal" world. I remember some of his posts on eastern talking all about the electrical connections in the atrmosphere driving storms and he is always talking about the lunar phases having a serious impact on the storms.

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