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March Pattern and Discussion


Bevo

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Birmingham, AL saw 5"+ of snow from what I believe was a ULL on April 3rd, 1988.  You just never know!

 

 

 

 

:D

yep I think that was when here in Asheville we got about 12 inches out of that storm.  was wearing shorts like today like the day or two before the storm hit.  heavy wet snow.

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Wow, the 18z GFS is a megasnowstorm, LOL.  Bizarre run.  Surface temps are probably an issue, but 850s aren't.  That's like 2" of QPF in total.  Sign me up.

 

Even with the surface temps factored in, the 18z GFS clown maps still print out some high-quality porn.

 

I'm saving this.  It's not too often we see these runs in late March, haha.

 

18zgfssnowdepth192.gif

 

Unfortunately (for me, anyways), the first system around the 21st-22nd stays suppressed.  We'll see.

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Why couldn't this come in January? Lol. Navgem had megasnowstorm for the NE fwiw

 

It really is unfortunate, but if it decides to come in late March, I'll take it.  Can't be too picky in the SE!

 

As a bit of a snow cover weenie, March snowstorms do come up a bit short, but I'll take snow anytime of the year.

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Birthday plans for next weekend look ruined thanks. I expect 70 degree weather in late March.

 

We have it suppressed enough to allow for some north trends to make it a NC north threat leading up to it. I probably won't bite until Tuesday.

 Whom are you kidding. You bit HOOK LINE and SINKER ! Snow maps all around!

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Alright, I can't believe I'm posting this, but it is out at only 144 hours on the ECMWF.  This is as far into the future as wunderground will show us.  North MS/AL/GA/SC looking good at this point.  Sure wish I could see the hours beyond.  These are three-hour snow totals, by the way, if that wasn't clear.

 

X0Ee0Nd.png

Oh crud...I'm in the bulls eye. Well that seals it for me. I will not see any snow from this.

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The euro ensemble mean drobs about .4to .5 here in Franklin. Looks to be all snow too. Thats very bullish for an ensemble mean at day 6.

 

EXTENDED FORECAST DISCUSSION

NWS WEATHER PREDICTION CENTER COLLEGE PARK MD

1159 AM EDT SAT MAR 16 2013

 

VALID 12Z TUE MAR 19 2013 - 12Z SAT MAR 23 2013

 

...OVERVIEW...

 

THE UPPER PATTERN WILL BE DRIVEN BY THE TWO ROBUST POSITIVE HEIGHT

ANOMALIES IN THE NORTH ATLANTIC AND OVER THE NORTH POLE THAT

SHOULD MERGE OVER NORTHERN GREENLAND/CANADIAN ISLANDS OVER THE

NEXT WEEK. END RESULT IN THIS VERY NEGATIVE AO PATTERN WOULD BE TO

FAVOR COOLING CONUS TEMPS NEXT WEEK...ESPECIALLY OVER THE CENTRAL

AND ERN US UNDERNEATH HIGHER LATITUDE BLOCKING WITHIN A

MID-LATITUDE BELT OF STEADILY PROGRESSIVE SYSTEMS WITH DECENT

AMPLITUDE.

 

...MODEL PREFERENCES...

 

WPC MEDIUM RANGE SURFACE FRONTS/PRESSURES AND 500 MB PROGS HAVE

BEEN PRIMARILY DERIVED FROM A 5-WAY COMPOSITE OF THE 06 UTC

GFS/GEFS MEAN AND THE 00 UTC ECMWF/CMC/ECMWF ENSEMBLE MEAN.

ENSEMBLE MEANS SHOW GOOD AGREEMENT ON THE EXPECTED SYNOPTIC

PATTERN NEXT WEEK.  DETERMINISTIC COUNTERPARTS HAVE COME INTO

BETTER AGREEMENT INTO MIDWEEK...BUT LATER BECOME LESS AGREEABLE.

 

THE MOST CHANGEABLE PART OF THE FORECAST REMAINS FRI-SAT/D6-7. THE

ECMWF AND ITS MEAN HAVE SHOWED A MUCH MORE SUPPRESSED SYSTEM

MOVING OUT OF THE ROCKIES AND THRU THE SRN PLAINS TO THE SERN US

COMPARED TO RECENT GFS/CMC RUNS. GEFS/CMC/NAEFS MEANS FALL

SOMEWHAT IN BETWEEN BUT HAVE TRENDED TOWARD SUPPRESSION IN RECENT

RUNS. EVEN SO...THE GFS AND CMC HAS SHIFTED SOME FOCUS FOR LOW

PRESSURE THRU THE SRN/SERN US RATHER THAN THE MIDWEST/OH VALLEY

AND THAT TREND SEEMS REASONABLE CONSIDERING THE UPPER LOW OVER

QUEBEC SHOULD SUPPORT FORCING ENERGIES EWD RATHER THAN NEWD.

INCORPORATING SOME WEIGHTING TO THE GFS/GEFS/CMC IN THE WPC BLEND

LEFT MORE ROOM FOR ME TO INCLUDE A MORE ORGANIZED LOW TRACK THAN

THE EC/EC ENSEMBLES ACROSS THE SRN/SERN US TIER IN POSITION

CONSISTENT WITH A DECENT CLUSTER OF GFS/CMC/EC ENSEMBLE MEMBERS.

 

...SENSIBLE WEATHER HIGHLIGHTS...

 

AFTER A SHORT RANGE HEAVY PCPN/INTERIOR NERN US HEAVY SNOW EPISODE

INTO TUE...PLEASE SEE WPC SHORT TERM WINTER WEATHER AND QPF

PRODUCTS FOR DETAILS...THE SYSTEM WILL SHIFT EMPHASIS OUT FROM THE

NORTHEAST MIDWEEK BUT KEEP LAKE EFFECT FAVORED AREAS COLD AND

UNSETTLED WITH CONDITIONS WITH SNOW DIMINISHING LATE WEEK.  IN ITS

WAKE AND WITH REINFORCING SHOTS...COOLING HIGH PRESSURE SHOULD

REMAIN SETTLED OVER MUCH OF THE W-CENTRAL THRU ERN US.  MEANWHILE

UPSTREAM...SFC SYSTEM ASSOCIATED WITH A VIGOROUS CLOSED LOW

EJECTING FROM NEAR HAWAII IN THE SHORT TERM SHOULD FIND ITS WAY

TOWARD VANCOUVER ISLAND ON A TRACK FARTHER NORTH THAN FORECAST

YESTERDAY...BUT FORECAST SPREAD IS NOW REDUCED. A TRAILING FRONTAL

PUSH AND MOISTURE SHOULD SPREAD MODEST TO TERRAIN ENHANCED QPF

ACROSS MUCH OF THE WEST /EXCEPT THE SW DESERTS/ INTO WED/THU

MIDWEEK BEFORE TRANSLATING EASTWARD BY THE END OF THE WEEK.

THERE...PRECIP FOCUS SHOULD STAY SOUTH OF ABOUT 35N...WITH

SNOW/ICE THREAT ON THE NRN PERIPHERY OF THE PCPN SHIELD AND

DEEPEST REBOUNDING MOISTURE AND HEAVIER RAINFALL POTENITAL FED

INTO/OVER OF WAVY FRONTAL BOUNDARY...ESPECIALLY OVER THE SRN/SERN

US TIER.

 

SCHICHTEL

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Wow, the 18z GFS is a megasnowstorm, LOL.  Bizarre run.  Surface temps are probably an issue, but 850s aren't.  That's like 2" of QPF in total.  Sign me up.

 

Even with the surface temps factored in, the 18z GFS clown maps still print out some high-quality porn.

 

I'm saving this.  It's not too often we see these runs in late March, haha.

 

18zgfssnowdepth192.gif

 

Unfortunately (for me, anyways), the first system around the 21st-22nd stays suppressed.  We'll see.

 

 

Really? I doubt it will happen, but to be honest I am ready for more days like today and don't want to see anymore cold until next winter. This will probably either end up too warm, not have enough precip, or move north like everything else did this winter. And if we just get some cool rain out of this like we have all winter, I'd rather just past.

 

This is like the girl you could never leave behind, and once you're ready to move on from her, she comes back in your life again.

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Gawx should get a job at a NWS office if we get a widespread snowstorm out of this.  His use of statistics/analogs have proven more credible than any other respected met’s long range forecasts.  

Don't be tempting CrossRoads with a job...we've already lost a lot of Robert's time to the work a day world.  We need Larry right here :)  Anyway, I think the Gov already has him set in his Dickensian warren, with his Cray computers, and abacus.....and the lure of ice cream to keep him busy, lol.

  I've seen snow on the grass in April, so a March snow is no big shakes.  But a wide spread one would be more unusual.  T

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This definitely makes for an odd board dynamic -- we've been burned so many times, it's hard to even consider seeing snow in late March. Yet. the Euro is nothing to be trifled with when it is consistently showing a solution. At the very least, it's going to be shockingly chilly next weekend, compared to what I just played golf in. :maphot:

 

I'm nowhere near as enamored with the Euro as most, but I do agree that when it seems dialed in, it performs well.  There is that time last winter where it showed snow for several runs and multiple days but it never even came close, so I'm curious to see where it finishes with this one.

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I'm nowhere near as enamored with the Euro as most, but I do agree that when it seems dialed in, it performs well. There is that time last winter where it showed snow for several runs and multiple days but it never even came close, so I'm curious to see where it finishes with this one.

There is also that time where it nailed Sandy 8 days out. Exact landfall and pressure almost.

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00z GFS looks warmer and drier for the "first" event next week.  Same book, different chapter?

TW

 

It looks cold enough up in our neck of the woods, but it's too suppressed.

 

The 00z GFS is going to slam us with the second system, though.  Oh, my!  Textbook track right from the Gulf to Jacksonville, FL.

 

EDIT: Well, assuming surface temperatures are okay, of course...

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