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March 6-8th Ocean Storm Discussion Part III


Baroclinic Zone

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Believe it or not, 12z GFS has it at 48 hrs.. Doesnt seem to have quite the same effect on that model though. :axe:

 

Yeah funny I was just looking at that.  It's had the s/w all along, but the fujiwhara I think is new.  GFS does it too, timing is just different so the outcome is as well.

 

NAM doesn't and that's why the NAM is an inferno and why it sucks :)

post-3232-0-72113500-1362508871_thumb.jp

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Yeah funny I was just looking at that.  It's had the s/w all along, but the fujiwhara I think is new.  GFS does it too, timing is just different so the outcome is as well.

 

NAM doesn't and that's why the NAM is an inferno and why it sucks :)

 

 

I guess I need to learn  more about fluid dynamics, but why doesnt that monster energy which precipitates the fujiwara dance phase with the primary center instead of dancing around it?

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Yeah funny I was just looking at that.  It's had the s/w all along, but the fujiwhara I think is new.  GFS does it too, timing is just different so the outcome is as well.

 

NAM doesn't and that's why the NAM is an inferno and why it sucks :)

 

 

It's not all that new, the overnight runs had that going one with the two PV anomalies that I was posting about earlier. The fujiwara tugged things north, and the phase brought it to a stall as the northern PV was entrained into the southern.

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Man I know this is a tricky forecast, but a little surprised how bearish TV outlets are.

 

Not just them, Taunton is saying this is similar to the snowbust of 2010 still at 140pm.  I mean, it's like a bizzaro world.

 

NO TWO EVENTS ARE IDENTICAL BUT THIS LOOKS A LOT LIKE 10 FEB 2010

SNOW BUST. DESPITE THIS OCEAN STORM EVOLVING INTO A VERY LARGE

CIRCULATION/FIRE HOSE ALL MODEL GUIDANCE TRACKS MID LEVEL

CIRCULATION WELL SOUTH NEW ENGLAND...ABOUT 36N LATITUDE! THUS

HEAVIEST PERSISTENT BANDED QPF SHOULD REMAIN OFFSHORE OR ALONG THE

IMMEDIATE COAST. IN FACT 00Z ECMWF AND UKMET CONFINE HEAVY QPF

SOUTHEAST OF A LINE FROM BDL-ORH-MHT...WHICH FITS THE UPPER AIR

PATTERN. STAKES ARE ALWAYS HIGH WHENEVER SHARP QPF AXIS CROSSES

THE AREA.

 

 

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Not just them, Taunton is saying this is similar to the snowbust of 2010 still at 140pm.  I mean, it's like a bizzaro world.

 

NO TWO EVENTS ARE IDENTICAL BUT THIS LOOKS A LOT LIKE 10 FEB 2010

SNOW BUST. DESPITE THIS OCEAN STORM EVOLVING INTO A VERY LARGE

CIRCULATION/FIRE HOSE ALL MODEL GUIDANCE TRACKS MID LEVEL

CIRCULATION WELL SOUTH NEW ENGLAND...ABOUT 36N LATITUDE! THUS

HEAVIEST PERSISTENT BANDED QPF SHOULD REMAIN OFFSHORE OR ALONG THE

IMMEDIATE COAST. IN FACT 00Z ECMWF AND UKMET CONFINE HEAVY QPF

SOUTHEAST OF A LINE FROM BDL-ORH-MHT...WHICH FITS THE UPPER AIR

PATTERN. STAKES ARE ALWAYS HIGH WHENEVER SHARP QPF AXIS CROSSES

THE AREA.

 

 

 

FYI, that's still the midnight shift's wording. Probably just the near term that got updated.

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It's not all that new, the overnight runs had that going one with the two PV anomalies that I was posting about earlier. The fujiwara tugged things north, and the phase brought it to a stall as the northern PV was entrained into the southern.

 

Cool, I fell asleep early last night, didn't see that discussion.  Rare thing to see but it's been going on all week to our ENE so...not that unusual for this block.

FYI, that's still the midnight shift's wording. Probably just the near term that got updated.

Whoops, first time I'd looked at it today. They do need to do some updating. The page still has no headlines. No watch, nothing. First flakes are 36 or so hours away.

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I'm surprised at how cold the Euro is. I hope its not being too cold...like it was in the 2/27 event

I was allowing it to be a little too cool, but I think it still looked good for ern areas. At least we don't have a screaming wind from 100 like last storm. Dynamics still are key here, so we'll need that.

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Andy thanks for posting.

 

I know you really like the UK.  It's been lousy in these marginal situations down here all winter, I've pretty much stopped looking at it, as it missed just about every scraper right up to the end.  That said, it could be right.

Were you able to figure out what it said...lol?

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Cool, I fell asleep early last night, didn't see that discussion.  Rare thing to see but it's been going on all week to our ENE so...not that unusual for this block.

Whoops, first time I'd looked at it today. They do need to do some updating. The page still has no headlines. No watch, nothing. First flakes are 36 or so hours away.

 

A midday winter storm watch would be rare, no reason to rush one out. A warning or advisory if things were imminent would be a different story. But the watch can just as easily go up at 4 PM as it can at noon.

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NCEP will likely be going pretty big on the QPF package.

PREFERENCE: A BLEND OF THE 00Z-12Z ECMWF/12Z UKMET/12Z CANADIAN

GLOBAL (CONFIDENCE AVERAGE).

A STRONG UPR LOW ACROSS THE MID MS VALLEY THIS EVENING WILL SHIFT

TOWARD THE EAST SOUTHEAST OVERNIGHT INTO WED BEFORE TURNING EAST

NORTHEAST LATE WED INTO THU AS IT TRACKS INTO THE MID ATLANTIC

COASTAL AND OFFSHORE WATERS. WHILE AGREEMENT IS BETTER THAN

AVERAGE WITH THE LOW LEVEL CYCLONE AS IT APPROACHES THE MID

ATLANTIC COAST...DIFFERENCES IN TRACK DEVELOP OVER THE ATLANTIC

OCEAN.

QUESTIONS EXIST IN HOW MUCH OF A N TURN THIS LOW WILL TAKE AS SOME

MODEL FORECASTS HAVE A GREATER IMPACT IN NEW ENGLAND.

THE OLDER NAM RUNS WERE ON THE SLOW END OF THE CYCLONE TIMING INTO

THE ATLANTIC AND THE 12Z RUN HAS NUDGED THE FORWARD SPEED FASTER.

THE NAM HAS NUDGED THE OVER-WATER TRACK NORTH OF ITS 00Z RUN BUT

IS STILL ON THE SOUTHWEST EDGE OF THE GUIDANCE SUITE WITH THE SFC

LOW POSITIONS/TRACK. THE 12Z GFS HAS MOVED THE SFC-700 MB LOW

FASTER OFFSHORE AND THIS TREND MAKES THE GFS THE FASTEST SOLUTION

OF THE SUITE OF MODELS/ENSEMBLES.

GIVEN THE BLOCKING PATTERN...A FASTER SOLUTION IS NOT

PREFERRED....WITH THE 06Z GFS/GEFS MEAN CLUSTERING BETTER TIMING

WISE WITH THE 09Z SREF MEAN/12Z UKMET/00Z-12Z ECMWF.

THE CONSENSUS PREFERENCE IS REPRESENTED BY A BLEND OF THE 00Z-12Z

ECMWF/12Z UKMET/12Z CANADIAN GLOBAL.

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What is The orientation of the firehose moving up along eastern half of sne? Wnw/ese allign or more nw/se ? Or somethin else

 

It looks pretty much like ML winds are coming in out of the east...though turning more ENE/NE with time.

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lol. I feel bad for BOS TV. A lot of them had nothing for BOS at noon.

 

Eh' I think it's ok because the big viewer numbers are for the evening news and most of the metro forecast area is snow free through the evening commute tomorrow. 

 

I amazed at how tightly banded some of the precip contours are. There will be towns that have decent accumualtion differentials from E to W.  That must be a huge pain for on air mets.

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