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March 7-8th Potential Coastal Storm Discussion


REDMK6GLI

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You can take the models into account, but no one is saying that there will be a storm... just the potential. We can't just not use the models after the last disaster. 

 

EXACTLY, these debbie-downers are getting mixed up on people talking about a THREAT T-H-R-E-A-T and a high % forecast. It is fair to say there is a threat for 12-14th, especially with the EURO ensembles going gang busters.

 

No one in this thread has said "OMG big snowstorm coming 12-14th", all we're doing is talking about the idea of maybe a storm in that time frame, THATS ALL. 

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If there was a storm the end of the this week or over the weekend would it even be snow in NYC and points east?? Im seeing forcasted highs in the low to mid 40's by the end of the week and especially the weekend.

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If there was a storm the end of the this week or over the weekend would it even be snow in NYC and points east?? Im seeing forcasted highs in the low to mid 40's by the end of the week and especially the weekend.

 

In a LR forecast like this you're never going to see computer outputted forecasts in March saying highs in the low 30s with a chance of snow. For example, today's EURO at 210 HOURS has the freezing line south of Cape may and .25-.5 precip contour over Philly to NYC, but it is so far out that it doesn't matter right now. At this range you'll likely see most forecasts have temps forecasted per usual climate for the time of year. 

 

Most 10 day forecasts are automated GFS-outputs. 

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lol you should give the poster a big apology for misunderstanding his post.

+1

 

It is the reaction of a child to say because the forecast in the last storm did not pan out, that we should not pay any attention to any forecasts more than 2 days out.   Is it so hard to understand that LR forecasting (and weather forecasting in general) is not an exact science, and that this fact should not stop people from trying.  

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+1

 

It is the reaction of a child to say because the forecast in the last storm did not pan out, that we should not pay any attention to any forecasts more than 2 days out.   Is it so hard to understand that LR forecasting (and weather forecasting in general) is not an exact science, and that this fact should not stop people from trying.  

No, but it should stop people from wishcasting. It's not only the last storm that didn't "pan out". There is a certain fascination with hoping. There is also being realistic and taking in the model outputs (and not just hanging on one run or one model), seasonal climatology, forecasting expertise, model bias, etc ... to be objective and realistic. It's one thing to note a LR possibility 5 or 7 days out as just what it is. It's another thing to hype it. Something to keep our eyes on, that's all. And he's right in that more than 2-3 days out ... even with consistency between models ... it isn't worth getting your hopes up and putting too much energy into.  Just my 2 cents.

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No, but it should stop people from wishcasting. It's not only the last storm that didn't "pan out". There is a certain fascination with hoping. There is also being realistic and taking in the model outputs (and not just hanging on one run or one model), seasonal climatology, forecasting expertise, model bias, etc ... to be objective and realistic. It's one thing to note a LR possibility 5 or 7 days out as just what it is. It's another thing to hype it. Something to keep our eyes on, that's all. And he's right in that more than 2-3 days out ... even with consistency between models ... it isn't worth getting your hopes up and putting too much energy into. Just my 2 cents.

Who's wish casting this potential system at the end of the week? Everyone to me seems they are just discussing the potential as modeled right now.

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And also, didn't I see someone talking about SREFs already for this next storm? Look, nothing wrong with wishcasting. It all depends upon what the objective of the message board is.

The objective is to discuss the weather. .. which is what everyone is doing. That would indeed include the discussion of the Srefs for the upcoming potential system. Whether or not they are an accurate depiction is merely part of the discussion and in no way makes the person or persons discussing it wishcasting.

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http://www.wpc.ncep.noaa.gov/discussions/hpcdiscussions.php?disc=pmdhmd

 

..STRENGTHENING MID/UPPER LEVEL TROUGH REACHING THE GULF COAST
STATES/SOUTHEAST WED THROUGH FRI...
...SURFACE CYCLOGENESIS OVER THE NERN GULF OF MEXICO...LIFTING UP
OFF THE SOUTHEAST/MID-ATLANTIC...

PREFERENCE: BLEND OF THE 00Z GFS/12Z ECMWF/12Z ECENS MEAN
CONFIDENCE: BELOW AVERAGE

THE 00Z NAM HAS TRENDED SLOWER AND STRONGER WITH THE HEIGHT FALLS
ASSOCD WITH THIS SHORTWAVE ENERGY DIGGING DOWN ACROSS THE
CNTRL/SRN PLAINS AND TWD THE GULF COAST STATES/SOUTHEAST WED
THROUGH FRI...BUT IT IS OVERALL THE WEAKEST SOLN REGARDING TROUGH
DEPTH COMPARED TO THE OTHER GLOBAL MODELS. THE 00Z NAM ALSO
APPEARS A LITTLE TOO WEAK WITH ITS SFC CYCLOGENESIS OVER THE NERN
GULF OF MEXICO AND OFFSHORE THE SOUTHEAST AND MID-ATLANTIC STATES
BY FRI. THE 12Z UKMET FOR ITS PART APPEARS TOO STRONG WITH ITS
HEIGHT FALLS AND IS A LITTLE TOO FAST. IT HAS A NOTABLY STRONGER
SFC LOW DEVELOPING AND RIDING NEWD UP OFFSHORE THE SOUTHEAST
COASTLINE AND IS TUCKED IN CLOSER TO THE NC OUTER BANKS BY EARLY
FRI. THE 12Z GEM GLOBAL APPEARS TOO FAR NORTH AT LEAST BY EARLY
FRI WITH ITS SFC LOW. THE 00Z GFS AND 12Z ECMWF SHOW THE STRONGEST
AGREEMENT WITH THE MASS FIELDS ALOFT...BUT AT THE SFC...THE GFS
DEVELOPS ITS SFC LOW A LITTLE FARTHER EAST OFFSHORE THE SOUTHEAST
COMPARED TO THE ECMWF AND ACTUALLY APPEARS TO BE A BIT TOO WEAK.
THE LATEST GEFS MEAN THOUGH DOES TEND TO SUPPORT A RELATIVELY
WEAKER SFC LOW...BUT THE ECENS MEAN SUGGESTS A STRONGER LOW. WILL
PREFER A BLEND OF THE GFS/ECMWF AND THE LATEST ECENS MEAN BASED ON
THEIR OVERALL MASS FIELD CLUSTERING...BUT GIVEN THE OVERALL MODEL
SPREAD WITH THE SFC LOW OFFSHORE THE SOUTHEAST AND MID-ATLANTIC BY
EARLY FRI...CONFIDENCE IS LIMITED.   (or shaken??)

 

 

Peter T Mcintyre

 

http://weather.unisys.com/satellite/sat_ir_hem_loop-12.gif

 

 

 

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