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NYC/PHL 12/21-12/27 Forecast Threats


am19psu

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The Euro's SW bias has historically had more impacts on its ultimate solututions over the Plains/Midwest than it does on the East coast so its possible the SW energy deal is not causing it to show too much of an error in the end.

so basically what your saying is after holding it up in the sw to long, it speeds it up to fast in the midwest to make up for the time it was behind once it reaches the east coast?

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so basically what your saying is after holding it up in the sw to long, it speeds it up to fast in the midwest to make up for the time it was behind once it reaches the east coast?

I'm not sure thats why or not but it does seem to be able to see through that bias to still outforecast the GFS most times despite the fact the GFS evolves things more accurately in the SW/southern Plains.

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per dt

FEB

I told you that the last 12 runs of the GFS were BS....

the 0z GFS shift here is BIG and the identical surFace and 850 and 700 low of the ggeM and euro at 132 -168 hrs is STUNNING

the fact that ggem supports euro and gfs is getting a clue is amazing news for us (NE)..

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Nobody here has mentioned (and probably doesn't care) that since it's Winter Solstace in about 24 hours or so, there ain't gonna be no sun angle to melt any of this away for a long, long time. Meaning that whatever falls and stays, is going to be here for quite a while.

Considering every potential system in December has been a bust so far, I think people are only concerned about actually getting a storm at this point. At 6 days out, it's still obviously a question mark. Once we know we're gonna get a storm (if it happens), then we can think about your point. Let's not count our pennies before they hatch.

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LOL earthlight

anyone have the euro ens? i cant believe i am still up right now, 2 finals tomorrow and a blizzard on the euro has got be buzzed out :popcorn:

Does this help?

PRELIMINARY EXTENDED FORECAST DISCUSSIONNWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD400 AM EST MON DEC 20 2010 VALID 12Z FRI DEC 24 2010 - 12Z MON DEC 27 2010 ...WINTER STORM STILL INDICATED FOR THE EASTERN UNITED STATESCHRISTMAS WEEKEND...USED THE 00Z/20 ECMWF FOR THE PRELIMINARY FRONTS AND PRESSURES FORDAYS 3 THROUGH 7. THIS RUN OF THE DETERMINISTIC ECMWF HAS GOODSUPPORT FROM THE LATEST UKMET WITH THE TIMING AND TRACK OF THESIGNIFICANT SYNOPTIC WAVE CROSSING THE EASTERN STATES DURING THEPERIOD. THE TRACK IS ON THE SOUTH SIDE OF THE GUIDANCE...BUT ISWITHIN THE ENVELOPE OF REMARKABLY WELL CLUSTERED DETERMINISTICMODELS AND ENSEMBLE MEMBERS FROM THE GEFS AND ECENS. THESUPPRESSED TRACK IS MORE LIKELY GIVEN THE DICEY CHANCE THATSHORTWAVE ENERGY IN THE SPLIT FLOW WILL PHASE AT JUST THE RIGHTTIME AND TRAVERSE MOST OF THE NATION AS SUCH. THE ECMWF HASREASONABLE SUPPORT FROM ITS ENSEMBLES FOR THE HANDLING OF THE FLOWCOMING INTO THE WEST COAST AS WELL UNDER THE BLOCK DOWNSTREAM.CISCO

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Does this help?

PRELIMINARY EXTENDED FORECAST DISCUSSIONNWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD400 AM EST MON DEC 20 2010 VALID 12Z FRI DEC 24 2010 - 12Z MON DEC 27 2010 ...WINTER STORM STILL INDICATED FOR THE EASTERN UNITED STATESCHRISTMAS WEEKEND...USED THE 00Z/20 ECMWF FOR THE PRELIMINARY FRONTS AND PRESSURES FORDAYS 3 THROUGH 7. THIS RUN OF THE DETERMINISTIC ECMWF HAS GOODSUPPORT FROM THE LATEST UKMET WITH THE TIMING AND TRACK OF THESIGNIFICANT SYNOPTIC WAVE CROSSING THE EASTERN STATES DURING THEPERIOD. THE TRACK IS ON THE SOUTH SIDE OF THE GUIDANCE...BUT ISWITHIN THE ENVELOPE OF REMARKABLY WELL CLUSTERED DETERMINISTICMODELS AND ENSEMBLE MEMBERS FROM THE GEFS AND ECENS. THESUPPRESSED TRACK IS MORE LIKELY GIVEN THE DICEY CHANCE THATSHORTWAVE ENERGY IN THE SPLIT FLOW WILL PHASE AT JUST THE RIGHTTIME AND TRAVERSE MOST OF THE NATION AS SUCH. THE ECMWF HASREASONABLE SUPPORT FROM ITS ENSEMBLES FOR THE HANDLING OF THE FLOWCOMING INTO THE WEST COAST AS WELL UNDER THE BLOCK DOWNSTREAM.CISCO

:arrowhead: but they are using the 00z euro for their 7day?

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:snowman: wow now that is impressive...

Ok, the forecaster, Cisco, is a known Euro hugger for sure. If you read his model diag discos, he always goes with it. Not as all surprised he went with that solution. Btw, he is awful. Rosenstein is the best for the long range forecasts from HPC.

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Ok, the forecaster, Cisco, is a known Euro hugger for sure. If you read his model diag discos, he always goes with it. Not as all surprised he went with that solution. Btw, he is awful. Rosenstein is the best for the long range forecasts from HPC.

lol i figured, thanks for the heads up :thumbsup:

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