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Post-Super Bowl Storm chance discussion


rossi

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This is just one of those times that the GFS beat the Euro. The Monday 1-26 GFS 12z total

precip forecast was right on the money.

 

NYC verification.......0.84

ISP verification........1.63

 

1-26 GFS 12z total precip forecast

 

attachicon.giff54.jpg

Amazing the 20 inch line starts around Uniondale . 20 miles East of Brooklyn . That's how close this was .

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6z. GFS GEFs south .

Rossi

The OP the last couple of runs cuts west of us BUT when you look at the ENS go south and  - 2-meter temps they stay below freezing the entire event this is why Upton is forecasting as of now an all snow event likely with moderate accumulations

 

http://www.tropicaltidbits.com/analysis/models/?model=gfs-ens&region=us&pkg=T2m&runtime=2015012806&fh=126&xpos=0&ypos=631

 

http://www.tropicaltidbits.com/analysis/models/?model=gfs-ens&region=us&pkg=mslp_uv850&runtime=2015012806&fh=264&xpos=0&ypos=604

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This is so early and considering it is 5 days away this is only model disco and NO way a forecast . TOO EARLY GUYS AND GIRLS .

 

1 Euro OP  is an all out snowstorm

2. The Ensemble mean takes LP south and to the BM

3 The usually amped low res control is south of both

4 The 6z GEFS is cold and all snow

5. The 6z GFS OP is further S that the 0z GFS OP

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This is so early and considering it is 5 days away this is only model disco and NO way a forecast . TOO EARLY GUYS AND GIRLS .

 

1 Euro OP  is an all out snowstorm

2. The Ensemble mean takes LP south and to the BM

3 The usually amped low res control is south of both

4 The 6z GEFS is cold and all snow

5. The 6z GFS OP is further S that the 0z GFS OP

Good discussion. I'd also add that if the ensemble forecast of an AO- works out, a colder and snowier outcome might be more likely than the milder and wetter one.

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Good discussion. I'd also add that if the ensemble forecast of an AO- works out, a colder and snowier outcome might be more likely than the milder and wetter one.

There is an -AO dip before the storm, so it's certainly possible. After that the AO goes positive on the ensembles

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Good discussion. I'd also add that if the ensemble forecast of an AO- works out, a colder and snowier outcome might be more likely than the milder and wetter one.

Yes the AO flips and we get a quasi ridge bridge at 120 , so there may be enough of a block and that`s why we see the slight shift S in some of the guidance 

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Upton

 

YET ANOTHER LOW PRESSURE SYSTEM IS FORECAST TO AFFECT THE REGION  
SUNDAY NIGHT INTO MONDAY. UNCERTAINTY IN THE FORECAST TRACK FOR  
THIS SYSTEM IS HIGH AT THIS TIME. IT APPEARS THE MOST LIKELY TRACK  
FOR THE LOW IS TO THE SOUTH OF THE REGION. THIS WOULD RESULT IN  
MOSTLY SNOW FOR OUR AREA. IF THIS IS THE CASE...THERE IS THE  
POTENTIAL FOR 6 INCHES OR MORE OF SNOW. SINCE THIS IS A  
PROGRESSIVE SYSTEM...MAXIMUM AMOUNTS WOULD BE MODERATE - LESS THAN  
A FOOT.  
 
HOWEVER...THERE IS A POSSIBLY THAT THE SYSTEM TRACKS TO OUR  
NORTHWEST. THIS WOULD RESULT IN MOSTLY RAIN AND POSSIBLY 1-2  
INCHES OF LIQUID. THIS...COMBINED WITH MELTING SNOW...COULD  
RESULT IN FLOODING. 
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Nuet yes , but heading NEG as we get closer to the event  , That`s why I call it a Quasi BRIDGE as it attempts to get there . You see the POS pop at 500  .

Is it strong enough ? 

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Nuet yes , but heading NEG , That`s why I call it a Quasi BRIDGE as it attempts to get there . You see the POS pop at 500  .

Is it strong enough ? 

Paulie

 

the combo is good ---

8-12" max potential because it still runs thru hot -quick-

 

this is a snowstorm within today's guidance parameters

the bubble is 12"----pushing that is just asking for disappointment

 

QPF fields from the WPC support this as the max / ATM

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Paulie

 

the combo is good ---

8-12" max potential because it still runs thru hot -quick-

 

this is a snowstorm within today's guidance parameters

the bubble is 12"----pushing that is just asking for disappointment

 

QPF fields from the WPC support this as the max / ATM

IMO I  was thinking 6 max  and  ZRP 

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Paulie

 

the combo is good ---

8-12" max potential because it still runs thru hot -quick-

 

this is a snowstorm within today's guidance parameters

the bubble is 12"----pushing that is just asking for disappointment

 

QPF fields from the WPC support this as the max / ATM

 

Whoa, are you ACTUALLY thinking snow?

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Whoa, are you ACTUALLY thinking snow?

Dano the instigator--lol

 

without bias..... from my end

this is a pattern snowbirds can use for reference

after the system passes thru

they can play with their 12" rulers--- not tape measures

 

dm

 

 

step thru this guidance---hard to pull out raindrops within it ---but WTHDIK

blue >>cold bubble anomaly argues  for snow in the metro

http://www.esrl.noaa.gov/psd/map/images/ens/t850std_f144_us.html

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Dano the instigator--lol

without bias..... from my end

this is a pattern snowbirds can use for reference

after the system passes thru

they can play with their 12" rulers--- not tape measures

dm

41UecpgPRXL._SX522_.jpg

step thru this guidance---hard to pull out raindrops within it ---but WTHDIK

blue >>cold bubble anomaly argues for snow in the metro

http://www.esrl.noaa.gov/psd/map/images/ens/t850std_f144_us.html

Good to see you on board here... You nailed the last two storms for the area! Keep it up!

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Good to see you on board here... You nailed the last two storms for the area! Keep it up!

830

Lets put the scorecards away.....it just ruffles feathers

but thanks... if you made that take away from the info I posted 

 

Mt Holly Snippet for Monday

 

SUN AFTERNOON THRU MON NIGHT...MORE WEATHER ACTION AS THE NEXT

SYSTEM EMERGES FROM THE ROCKIES SAT NIGHT THEN TRACKS UP THE OHIO

VALLEY AND ACROSS OUR AREA SUN NIGHT/MONDAY. THE SYSTEM IS SHOWN

SCOOPING UP PLENTY OF MOISTURE BEFORE IT ARRIVES. THE GFS SHOWS A

TRACK JUST NORTH OF THE AREA...THE EC JUST SOUTH. TEMPS AND POPS

MOSTLY WPC LIKE WITH A FEW ADJUSTMENTS FOR BETTER ISC COORDINATION.

CHC SNOW SUN AFTERNOON...THEN LIKELY SNOW SUN NIGHT. SNOW CHANGES TO

RAIN S/E I-95 MONDAY. THERE WILL BE PLENTY OF REFINEMENTS...SO THIS

IS THE BEST FCST FOR NOW. PAY ATTENTION TO THIS SYSTEM OVER THE NEXT

FEW DAYS.

 

http://forecast.weather.gov/product.php?site=NWS&issuedby=PHI&product=AFD&format=CI&version=1&glossary=1&highlight=off

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