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Early Jan cold and/or snow threat


Cheeznado

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DGEX was on board at 6Z for some coastal development with the second s/w diving down on the backside of the trough around hour 180 but it was just a tad too far offshore to help anyone.

I'll never forget the storms last year that painted MBY with like three feet of snow on the DGEX....now that is how you dream.

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thanks, burger. It seems like the precip is a little overdone. It's all frontal precip, right? If so, I doubt it would be cold enough for snow.

That assumption would probably be correct since it runs in 24hr panels....but given the GFS and Euro if that moisture was correct I would think we could eek out some snow out of that. Just my humble opinion though, a real professional can probably give a much more accurate opinion.

Scumbag Chris - Talks about JMA; doesn't clarify!

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I have a feeling that this storm is going to go down as the greatest snipe hunt of the entire Winter.

Isn't that pretty much every storm? Even in this case there is some part of us that hopes for a surprise! The true weenie knows it might just over perform. Hehe good thing the JMA is starting to have our backs. Now lets see what the 18z NAM says tomorrow!

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From GSP

ON WEDNESDAY NIGHT AND THURSDAY...ANOTHER

SHORT WAVE WILL DIVE DOWN INTO THE TROF AND ACROSS THE CAROLINAS.

THE GFS INDUCES CYCLOGENESIS OFF THE SC COAST THURSDAY MORNING AND

SPREADS LIGHT PRECIP OVER THE EASTERN FRINGE OF THE FCST

AREA...WHILE THE 12Z ECMWF IS DRY BECAUSE OF A WEAKER LOW FARTHER

OFFSHORE. WILL PLAY IT CLOSER TO THE ECMWF AND KEEP IT DRY TO AVOID

ANY VERY LOW CHANCE OF WINTER PRECIP ISSUES FOR NOW.

From RAH

FOR TUESDAY NIGHT THROUGH THURSDAY: A POTENT MID LEVEL SHORTWAVE

TROUGH OFF THE BC COAST MONDAY MORNING TOPS THE RIDGE AND DROPS TO

THE SE ON THE BACK SIDE OF THE EASTERN TROUGH THROUGH MIDWEEK. AS

ONE MIGHT EXPECT WITHIN A TRANSITIONING PATTERN AND A FAST NORTHWEST

FLOW ALOFT... THE MODELS VARY GREATLY WITH THIS FEATURE`S SPEED AND

AMPLITUDE... WITH THE 12Z GFS FASTER/DEEPER THAN THE 00Z ECMWF WHILE

TRENDING FASTER/DEEPER THAN ITS PREVIOUS RUNS. BOTH THE 12Z GFS AND

THE 00Z ECMWF CULMINATE IN A LOW CLOSING OFF OVER SC (WITH THE GFS

12 HRS FASTER THAN THE ECMWF)... WHICH PROMPTS SURFACE CYCLOGENESIS

JUST OFF THE CAROLINA COAST... HOWEVER THE 12Z ECMWF HAS BACKED OFF

ON THIS AND INSTEAD SWINGS AN OPEN WAVE THROUGH NC EARLY THURSDAY.

GIVEN THE POTENTIAL FOR LARGE CHANGES IN THE DETERMINISTIC MODELS

THIS FAR OUT... WILL KEEP THE FORECAST DRY FOR NOW... BUT WE WILL

NEED TO KEEP A CLOSE EYE ON THIS CLIPPER FEATURE AS THIS TIME PERIOD

DRAWS CLOSER. LOW LEVEL THICKNESSES RECOVER A BIT BEGINNING

WEDNESDAY BUT REMAIN GENERALLY BELOW NORMAL... SO EXPECT HIGHS TO

TREND FROM MAINLY THE LOWER 40S WEDNESDAY TO THE MID 40S THURSDAY.

LOWS IN THE 20S WITH TUESDAY NIGHT AS THE COLDEST NIGHT (LOWER 20S)

BENEATH THE SURFACE RIDGE.

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GFS might be suggesting winter precip around the 5th for CLT.

1-4.png

Hopefully future runs will trend to this or greater.

On a side note; while models now show a somewhat cooler solution in the short term, I am still very skeptical of how long the cold will stick around. NAO and AO will still be neutral to positive with the PNA going negative around 1/10/12.

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Yeah, it looks a tick southwest of the 12z run, but don't know if it's going to get to neutral tilt

It looked like it was going to be good for a while there. We started to get some gulf moisture and it even popped a slp in the gulf for a frame or two. The trough never did get a neg tilt, it's almost like the trough just moved due east and the temps retreated.

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