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Febuary 9-11 threat


Allsnow

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You were right when you said earlier, the set up is really marginal for this. A small change in track makes for a large difference, but unless we get a strong high to our north, keeping it all snow will be difficult.

I think its safe to say that those details will get worked out later. If you ask me, all the models have been pretty poor with canadian features all winter long.

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The track seemed to be west of the GFS. That made a difference in all snow vs. mix.. anyway, the trend seems to be colder and not warmer for these storms.The Tue-Wed satorm was more than 1/2 ice here.

Agree every major storm we have had the Euro has been warm/rain only to come east.

Rossi

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Agree every majot storm we have had the Euro has been warm/rain only to come east.

Rossi

Yes sir, I was reading the NE thread and this seems to be a good consensus right now. Meaning the euro has been showing warmer solutions in this timeframe only to turn colder in future runs. We shall see.

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Give the Euro some time please. The fact that the models are deepening this system well before it reaches our area is a very good sign. The storm track looks great if we can get a better placed high. If the season trends are any indication. The Euro will remain on the amplified warmer camp of solutions and the GFS will probably try to string this out and at some point, completely miss the phase, and pass the wave OTS 3-400 miles to our south. Agreement of this magnitude at this range is almost too good to be true.

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Sorta silly to worry about any model solutions right now, however, if the GEFS is correct, the -AO and a block over the top of greenland into the scandanavian area combined with the vortex in eastern canafa may be enough to keep this thing from cutting or going too far west.

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:thumbsdown: HPC says no reason to get excited on the coast, this will end up as a cutter.

EXTENDED FORECAST DISCUSSION

NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD

226 PM EST THU FEB 03 2011

VALID 12Z SUN FEB 06 2011 - 12Z THU FEB 10 2011

THE LONGWAVE PATTERN SHOWS A HIGH AMPLITUDE ERN PACIFIC RIDGE/ERN

NOAM TROF OVER THE NEXT 9 SAYS...WHICH BEGINS TO FLATTEN A BIT IN

ABOUT A WEEK WITH THE BEGINNING OF A NEW LOW LATITUDE TROF ALONG

140W IN THE ERN PACIFIC.

FROM THE LARGE SCALE PERSPECTIVE THERE IS GOOD AGREEMENT WITH THE

BROAD/DEEP MEAN TROF COVERING MOST OF NOAM DURING THE PERIOD.

MODALS CLUSTER REASONABLY WELL ON MOVING A PRIMARY LOW ACROSS THE

NERN CONUS DAYS SUN/MON 3-4...THOUGH THEY DIFFER IN THEIR

DEPICTION OF ASSOCIATED OFFSHORE DEVELOPMENT LATE MON WITH A BLEND

OFFSHORE THE PREFERRED SOLUTION. THERE IS INCREASING UNCERTAINTY

WITH THE ERN PAC/WEST COAST PATTERN FROM DAY 5 ONWARD. ENSEMBLES

SHOW THE SHARPENING OF AN ERN PACIFIC RIDGE S OF ALASKA TUE...AND

THE RAPID WEAKENING OF THAT SAME RIDGE TOWARDS THE LATTER PORTION

OF NEXT WEEK. THESE ARE SIGNALS INDICATING LOW CONFIDENCE IN THE

NERN PACIFIC DAY 5 AND BEYOND.

UPDATED PRELIM PROGS HAD INCORPORATED A HIGHER PERCENTAGE OF THE

LATEST ECMWF MEAN INTO THE BLEND THAN THE EARLY PRELIM. WE LIKED

THE IDEA OF THE NEW ECMWF MEAN SOMEWHAT WEAKENING NRN STREAM

ENERGY VICINITY OF THE LAKES/NEW ENG DAYS 4-5...WHILE PLAYING UP

MORE SIGNIFICANT TROFFING AT 500MB OVER THE W CENTRAL CONUS THAN

THE REST OF THE GUIDANCE. 00Z/03 ENSEMBLE SPAGHETTI PLOTS SHOWED

HIGH SPREAD WITH THE FOLLOWING MAJOR SHORTWAVE AFFECTING THE SRN

PLAINS OR GULF COAST REGION NEXT THU/DAY 7.

THE NEW DETERMINISTIC 12Z/03 GFS SHOWS A DISTINCT TREND TOWARDS

THE 00Z/03 UKMET/ECMWF SOLUTIONS BY TUE DAY 5...DROPPING A

SHARPENING SHORTWAVE SSE ON THE E SIDE OF THE LONGWAVE RIDGE IN

THE ERN PACIFIC. THE 12Z/03 UKMET/CANADIAN/ECMWF HAVE THIS FEATURE

TOO...AND ARE ABOUT 12HRS SLOWER THAN THE CORRESPONDING 00Z/03

ECMWF RUN. THE NEW 12Z/03 UKMET/CANADIAN/ECMWF ARE SHARPER AND

ABOUT 18HRS SLOWER WITH THE AZ TROF WED THAN THAN THE

CORRESPONDING GFS....AND IN UNUSUALLY GOOD AGREEMENT WITH EACH

OTHER. THE 00Z/03 ENSEMBLE MEANS OF THE ECMWF/GEFS/CMC ALL SHOWED

THE POSSIBILITY OF A SHARPER TROF OVER THE GRT BASIN AND IT SEEMS

TO BE PANNING OUT.

WE INCORPORATED NEW DETERMINISTIC MODEL TRENDS INTO THE FINAL

GRAPHICS. A MAJOR SYS IS MORE LIKELY NOW ALONG THE GULF/SERN COAST

THE MIDDLE/END OF NEXT WEEK...THOUGH THE DETAILS ARE STILL OBSCURE

6 AND 7 DAYS OUT. THE NEW ECMWF HAS TRENDED STRONGLY NWWD WITH A

MAJOR STORM MOVING ACROSS THE SERN STATES THU DAY 7.

AMIDST HIGH UNCERTAINTY...I WOULD NOT BE SURPRISED TO SEE

SUBSEQUENT RUNS TREND EVEN FARTHER W WITH THIS STORM NEXT WEEK

TOWARDS THE FAVORED LA NINA TRACK THRU THE OH VLY/WRN FOOTHILLS OF

THE APPALACHIANS.

FLOOD

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what site do you look at? I use http://www.eas.slu.e...ALOG/analog.php which allows you to focus on a certain range and location of the country. For our area, its best to focus over the Midwest or Mississippi valley since that's usually the areas where things get going for our area if its going to be something big. On my site its only out to 36hrs over the midwest and 48hrs over the east so Its way out of range at the moment. I need to wait till the 120hrs come out later this afternoon.

For what its worth, many nice threats showed up at 120hrs for the 00z run and thats still out of the range for our storm 8 days away. You can find them here.

http://www.eas.slu.e...COSN&sort=FINAL

For purposes of full disclosure, I'm only an amateur weather hobbyist and only view it to see if any KU storms are listed. I THINK but am not sure that Wes Junker uses it.

I use the below link, but it sounds as if yours might be more meaningful as its more precise, geographical region-wise.

http://www.cpc.ncep.noaa.gov/products/predictions/610day/analog.php

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hr 156 850's and surface over the city low over sc

Hr 159 rain for the city...nw areas getting crushed....

hr 162 low of eastern delmarva...snow rain line is pretty much 95.....dc getting crushed...nyc it prob back to frozen

162-170 we are pretty much crushed by heavy snow.....low track over eastern LI

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