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January 11-12 Snowstorm Disco


Baroclinic Zone

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No idea what this means from ALY update:

AS OF 830 PM...IMPRESSIVE SATELLITE TRENDS THIS EVENING AS MAIN

UPPER LOW OVER OHIO HAS BEGUN TO TRANSFER ITS UPPER SUPPORT TO THE

MID ATLANTIC COAST. RAPIDLY COOLING CLOUD TOPS OVER EASTERN PA INTO

NJ WITH UPSTREAM RADARS REVEALING AN EQUALLY IMPRESSIVE EXPANSION OF

REFLECTIVITY. 500MB 120+KT WAS PROGRESSING ACROSS TENNESSEE WHICH

HAS BEGUN TO INTERACT WITH THE TIGHTENING BAROCLINIC ZONE JUST OFF

THE MID ATLANTIC COAST WITH STRONG AGEOSTROPHIC FORCING. AS

SUGGESTED EARLIER...SEEMS THE SURFACE LOW TRACK MAY TRACK A LITTLE

FURTHER TO THE COAST PER THE ISALLOBARIC DROPS FROM MSAS/HRRR.

HOWEVER...WITH THIS CLOSER TRACK...POTENTIAL FOR GRAVITY WAVES PER

THE FORECAST DUCT FUNCTION WHICH COULD LIMIT THE PRECIP SHIELD TO

THE NORTH AND WEST OF THE CAPITAL REGION. FOR NOW...NO CHANGES TO

THE HEADLINES AND INCREASE SNOW AMOUNTS SLIGHTLY SOUTH AND EAST OF

THE CAPITAL DISTRICT.

Hope we all get rocked!

19.3/11

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It looks a little east into the GOM for those nne peeps, but verbatim it gets good QPF up that way. It might be that the 00z is a little quicker.

The 0.50" and 1.00" QPF contours on the 00z NAM look similar up here to the 12z EC. I'm locking in 1" QPF here and 8-14".
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No idea what this means from ALY update:

AS OF 830 PM...IMPRESSIVE SATELLITE TRENDS THIS EVENING AS MAIN

UPPER LOW OVER OHIO HAS BEGUN TO TRANSFER ITS UPPER SUPPORT TO THE

MID ATLANTIC COAST. RAPIDLY COOLING CLOUD TOPS OVER EASTERN PA INTO

NJ WITH UPSTREAM RADARS REVEALING AN EQUALLY IMPRESSIVE EXPANSION OF

REFLECTIVITY. 500MB 120+KT WAS PROGRESSING ACROSS TENNESSEE WHICH

HAS BEGUN TO INTERACT WITH THE TIGHTENING BAROCLINIC ZONE JUST OFF

THE MID ATLANTIC COAST WITH STRONG AGEOSTROPHIC FORCING. AS

SUGGESTED EARLIER...SEEMS THE SURFACE LOW TRACK MAY TRACK A LITTLE

FURTHER TO THE COAST PER THE ISALLOBARIC DROPS FROM MSAS/HRRR.

HOWEVER...WITH THIS CLOSER TRACK...POTENTIAL FOR GRAVITY WAVES PER

THE FORECAST DUCT FUNCTION WHICH COULD LIMIT THE PRECIP SHIELD TO

THE NORTH AND WEST OF THE CAPITAL REGION. FOR NOW...NO CHANGES TO

THE HEADLINES AND INCREASE SNOW AMOUNTS SLIGHTLY SOUTH AND EAST OF

THE CAPITAL DISTRICT.

Hope we all get rocked!

19.3/11

wtf? Has to be a typo in there.

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Looks great for a lot of some real dedicated weenies who suffered through the abyss that 10 was. I am happy for all of our snow geeks. Shot hour!

I'm hoping that what is likely my last winter storm in attleboro is my best one. Need to beat 16.5" from 12/19/09...then i can walk away from the game like john elway after winning the SB. Lol.

Drink up bro!

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From ALY-

AS OF 830 PM...IMPRESSIVE SATELLITE TRENDS THIS EVENING AS MAIN

UPPER LOW OVER OHIO HAS BEGUN TO TRANSFER ITS UPPER SUPPORT TO THE

MID ATLANTIC COAST. RAPIDLY COOLING CLOUD TOPS OVER EASTERN PA INTO

NJ WITH UPSTREAM RADARS REVEALING AN EQUALLY IMPRESSIVE EXPANSION OF

REFLECTIVITY. 500MB 120+KT WAS PROGRESSING ACROSS TENNESSEE WHICH

HAS BEGUN TO INTERACT WITH THE TIGHTENING BAROCLINIC ZONE JUST OFF

THE MID ATLANTIC COAST WITH STRONG AGEOSTROPHIC FORCING. AS

SUGGESTED EARLIER...SEEMS THE SURFACE LOW TRACK MAY TRACK A LITTLE

FURTHER TO THE COAST PER THE ISALLOBARIC DROPS FROM MSAS/HRRR.

HOWEVER...WITH THIS CLOSER TRACK...POTENTIAL FOR GRAVITY WAVES PER

THE FORECAST DUCT FUNCTION WHICH COULD LIMIT THE PRECIP SHIELD TO

THE NORTH AND WEST OF THE CAPITAL REGION. FOR NOW...NO CHANGES TO

THE HEADLINES AND INCREASE SNOW AMOUNTS SLIGHTLY SOUTH AND EAST OF

THE CAPITAL DISTRICT.

When the western most model goes east to every other model....time to go east. Barring a 1/25 tuck job.

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who will get the bands from hell?

no one wanna make a call on the where the M level low closes? trends.....help a weenie out.

hopefully there are no SNEAKY warm layers.

anything modeled around 8H or so that goes above 0C?

850's are a few C warmer than 925's over SE 1/2 of ny (-10 at 925 & - 4.5 at 850) i guess from the parent low over Erie, pa.

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Its in line now with the gfs ens mean and sref snow probs. Seems reasonable. Just have to continue to watch that bl warmth for awhile tho.

There's a nice clustering now towards maybe the outer Cape or ACK. NAM lessened my DS fears a bit, but still gets close of perhaps moves in briefly. Luckily, it looks like some strong low level forcing could possibly help out, like during the 12/26 storm. We'll see about that.

post-33-0-67141300-1294798379.gif

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If the GFS/EURO/UK are still east a bit of this, we'll see a tick east. It's still hanging onto the idea of a mini death spiral right over Bob's house, but it's losing it fast each run. With that removed I think we see it tick more towards ACK, and all dry slot/temp issues are gone for most of SEMA NW of me.

One thing the NAM has done - is never stop moving...unless the other guidance comes west to meet this solution I think it's still going a tick or two east.

I must remember your play by play and pics during the Jan 2005 blizzard. I think you got 3 feet right? Chuck em!

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There's a nice clustering now towards maybe the outer Cape or ACK. NAM lessened my DS fears a bit, but still gets close of perhaps moves in briefly. Luckily, it looks like some strong low level forcing could possibly help out, like during the 12/26 storm. We'll see about that.

post-33-0-67141300-1294798379.gif

Forgot these.

post-33-0-44016900-1294798492.gif

post-33-0-42164200-1294798505.gif

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It's not very often you deliver good news. Just keep the wet rag on standby.

LOL I'm just glad we got the NAM out of the way so to speak. Now watch the GFS move it to Buffalo.

The NAM clown graphics 1000-850 keep critical thicknesses here cold enough through about 7-8am, then it warms but now just barely. If it's still in error and adjusts 10 miles east thats all done. YET knowing this track I still suspect we get some warm air intrusion and I'm not yet excited pending the rest of the data suite.

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When do the damn sref graphics update on the ewall website? I wanna see the ptype charts. Trying to make a forecast for my folks on eastern li. They will be dangerously close to the rn/sn line methinks.

Should be soon, but for whatever reason, I notice the 21z graphics take forever on the ewall site. Maybe in like 10 min or so.

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