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Feb 27th Clipper - Feb 28th Dripper Obs/Disco


HoarfrostHubb

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12z GFS BUFKIT isn't out yet on the PSU site, but the 6z GFS doesn't look much different. This would be some decent snow growth for S NH with some moderate lift in the max DGZ.

post-3-0-35783600-1298738913.png

NWS really cleaned up nicely on the last snow/ice/rain event for SNE/CNE, great forecast really. let's see how they do with the clipper.

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CAR onto the trend for Monday....

.SHORT TERM /SUNDAY THROUGH SUNDAY NIGHT/...

LOW PRESSURE IS EXPECTED TO MOVE ACROSS THE SOUTHERN PORTION OF

NEW ENGLAND AT THE BEGINNING OF THIS PERIOD THEN TRACK EAST

NORTHEAST INTO THE ATLANTIC. OPERATIONAL GFS AND ECMWF ALONG WITH

NAM AND GFS ENSEMBLE MEMBERS ALL AGREE ON SOUTHERLY TRACK OF THIS

SYSTEM. WILL BRING CHANCE POPS IN BEHIND SYSTEM AS OVER-RUNNING

OCCURS BEHIND DEPARTING HIGH LATER SUNDAY. NEXT LOW PRESSURE

SYSTEM APPROACHES FROM THE WEST EARLY MONDAY. OPERATIONAL GFS

TAKES THIS SYSTEM ON A TRACK OVER THE NORTHERN TIP OF

MAINE...HOWEVER MOST GFS ENSEMBLE MEMBER TAKE SYSTEM A MORE

SOUTHERLY TRACK AS DOES THE ECMWF. SO WILL KEEP MOSTLY SNOW ACROSS

THE NORTH WITH MIX OVER THE CENTRAL AND SOUTHERN PORTION OF THE

FORECAST AREA. FOR POPS HAVE USED A BLEND OF THE SREF...NAM AND

GFS. WILL INCREASE POPS A LITTLE BASED ON GFS ENSEMBLE AND SREF

PROBABILITY. FOR WIND...TEMPERATURE AND DEW POINT HAVE USED THE

GMOS.

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As amazing as this winter has been, I was shocked to see that up here, in NE MA, it is not impossible that the upcoming might be our 5th largest of the year. Robust clipper FTW.

Euro fits the map when you take ratios into account. It may be a little light for CT, but we have yet to see how it will play out. Maybe it's right.

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Interesting to see if the king will have the two wave idea for tuesday, and if there will be enough seperation so the colder air will work in before the second wave comes north and has time to amplify just a tad.

It does have the 2 waves, Its getting closer to a frozen event especially up here

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Monday looks like snow to start to FRZRN here

It's a decent front end hit for parts of NNE. 54hr is close to snow here and by then 0.35-0.50" has fallen. Of course if there is warmer air above H85 at that point then the 850mb 0C doesn't matter. The NAM is toastier at 750-800mb than 850 at 54hr.
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It's a decent front end hit for parts of NNE. 54hr is close to snow here and by then 0.35-0.50" has fallen. Of course if there is warmer air above H85 at that point then the 850mb 0C doesn't matter.

I am certainly not as concerend about the Monday event as i was a few das ago, It had zero frozen with torch temps, Now it looks we have enough of a cad signature to hold temps in the 30's with more frozen

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It's a decent front end hit for parts of NNE. 54hr is close to snow here and by then 0.35-0.50" has fallen. Of course if there is warmer air above H85 at that point then the 850mb 0C doesn't matter. The NAM is toastier at 750-800mb than 850 at 54hr.

Yeah, On the Nam i was at SN at hr 54 then hr 57/60 was RN .37" back to FZRN then snow with about 5" accumalation

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Monday's storm continues to resemble yesterday more and more. POS vortmax moving under sne. If that vortmax north of Toronto were weaker, this thing probably would be an ice to snow event for a bunch of the interior. That seems to be keeping this low on a further north track.

This keeps ever so slowly trending to more of a frozen event then plain rain, Especially for NNE

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