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January Forecast Discussion


REDMK6GLI

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I found a few possible analogs for tomorrows storm...They were 4-6" events with very cold temps following it...higher amount analogs...2/7/1967...1/12/1964...12/12/1960...1/20/1961...

1/14/1977.....weak el nino year...

1/28/1952.....weak el nino...

2/02/1955.....weak la nina...

1/26/1961.....neutral...

1/16/1965.....weak la nina...

1/18/1984.....weak la nina...

1/14/2004.....neutral...

2/07/1979.....neutral...

2/07/2003.....el nino...

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some high ratio snowstorms...

date.......precip.....snow.....

03/60.......1.08".....14.5".....13/1

12/60.......0.84".....15.2".....18/1

01/61.......0.50".......9.9".....20/1

01/61.......0.24".......3.8".....16/1

01/64.......0.88".....12.5".....14/1

01/65.......0.35".......4.6".....13/1

02/67.......1.06".....12.5".....12/1

02/74.......0.24".......6.0".....25/1

02/78.......1.13".....17.7".....16/1

02/79.......0.39".......5.0".....13/1

02/79.......0.85".....12.7".....15/1

02/91.......0.55".......8.9".....16/1

02/96.......0.52".....10.7".....20/1

01/04.......0.15".......5.7".....38/1

01/05.......1.18".....13.8".....12/1

02/05.......0.37".......6.0".....16/1

02/05.......0.69".......7.7".....11/1

12/09.......0.74".....10.9".....15/1

12/10.......1.61".....20.0".....12/1

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some high ratio snowstorms...

date.......precip.....snow.....

03/60.......1.08".....14.5".....13/1

12/60.......0.84".....15.2".....18/1

01/61.......0.50".......9.9".....20/1

01/61.......0.24".......3.8".....16/1

01/64.......0.88".....12.5".....14/1

01/65.......0.35".......4.6".....13/1

02/67.......1.06".....12.5".....12/1

02/74.......0.24".......6.0".....25/1

02/78.......1.13".....17.7".....16/1

02/79.......0.39".......5.0".....13/1

02/79.......0.85".....12.7".....15/1

02/91.......0.55".......8.9".....16/1

02/96.......0.52".....10.7".....20/1

01/04.......0.15".......5.7".....38/1

01/05.......1.18".....13.8".....12/1

02/05.......0.37".......6.0".....16/1

02/05.......0.69".......7.7".....11/1

12/09.......0.74".....10.9".....15/1

12/10.......1.61".....20.0".....12/1

 

If we had those almost 40:1 ratios with this storm right now, we could have been dealing with around 30" of snow on just 0.75" QPF.

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I have a gut feeling the 12Z 12/28/13 ECMWF will have a 6-12 inch snowstorm for the NYC and LI area with amounts near 1 foot on Eastern LI, as it shows a much better track and less confluence.  Regarding 1/2-1/3 event.  I think something like over 6 inches of snow will start showing up more as we get closer. Cape Hatteras to near 40/70 type track.  Could this follow Nemo's 2/8/13 legacy last year ?  The 6Z ensembles off the operational on the GFS are very positive for this to trend positive.  My snowblower, gas, and stabilizer are ready.  Ear plugs are ready to be worn. Snowblower is ready to take this on...

 

Nice call.

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Any updates on Euro for Sunday/Monday and next Thursday?

 

 

 

Friday 1/10 - The GGEM would be the most significant with a moderate snowfall the ECM showing a minor event some snow, maybe mixing  south of the city, Quick moving shortwave

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No sign we will be as cold as today except on Tues. till at least the bottom of winter near 23rd. We are colder than Moscow where even the 850's are higher than our 2m's. Cold will come back with PV on our side of North Pole and stratospheric warming favorable .

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Friday 1/10 - The GGEM would be the most significant with a moderate snowfall the ECM showing a minor event some snow, maybe mixing  south of the city, Quick moving shortwave

makes sense that as we come out of this frigid pattern there will be a storm along the east coast which has happened many times in the past - all the models are hinting at this including the 6Z GFS which also has a very active pattern the next couple of weeks 

 

http://www.tropicaltidbits.com/analysis/models/gfs/2014010406/gfs_mslp_pcpn_frzn_us.html

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I have to give the JMA credit for seeing the trough progression from west to east during

December into January on the November 17th run. It's also interesting how many 

-EPO December analogs featured the colder temperatures arriving here in January.

 

JMA 11-17-13 run

 

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The JMA is an underrated model. I see us returning to snow chances towards 3rd week of Jan, so enjoy the cold this week and then take a break from wx for a bit. 

...JB agrees with you..he mentioned it on his latest free discussion..weeks 3-4

show classic blocking..cross polar flow..neg nao..yada,yada,yada.. all courtesy of the JMA.

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Looks like a sneaky little system showing up on the models for Thursday. 

agreed - these types of systems are difficult to forecast this far in advance - its going to be a race between the moisture arriving and whats left of the cold air hanging around just long enough to give us some accumulation or  retreating back north to make it a mix to rain scenario  - sort of like today.....

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I have to give the JMA credit for seeing the trough progression from west to east during

December into January on the November 17th run. It's also interesting how many 

-EPO December analogs featured the colder temperatures arriving here in January.

 

JMA 11-17-13 run

 

attachicon.gifScreen shot 2014-01-04 at 8.46.16 AM.png

JMA did well last year too

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Were going to have to see as we head towards jan. 20th what kind of end to winter mother nature has in store for us.

Only a +PNA looks favorable among the PNA,NAO,WPO,EPO by Jan. 20.  Can anyone add info on ENSO, MJO, stratospheric warming for this same period?  Thanks

Let me answer myself concerning the MJO,  looks like it is going into Phase 6, also UN-favorable but with low significance at this time of year for NE.

Also checked ENSO now,  and it is considered neutral with El Nino tendencies by summer.

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The 12z GFS is now over an inch of rain for NYC on Saturday into Sunday. The 06z GFS was between 0.50-0.75" and that was close to the 00z ECMWF. We're going to be dealing with a fairly potent northern stream trough. The GFS cuts off the southern stream down in Texas. As the southern stream begins to eject, the next northern stream shortwave is dropping down through the northern plains. Right now the timing between the two streams is off, but I believe this will be the next time period that will need to be watched for a significant east coast storm. The models will likely struggle with regards to the timing with the ejecting southern stream wave. In any event the 12z GFS has a strong southern stream low attempting to ride up the alps days 5-6 and then off the NJ coast. The end result is a sub 1000mb low just south of Long Island at hour 147. Even though it's rain, the cold air is not that far away.

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The 12z GFS is now over an inch of rain for NYC on Saturday into Sunday. The 06z GFS was between 0.50-0.75" and that was close to the 00z ECMWF. We're going to be dealing with a fairly potent northern stream trough. The GFS cuts off the southern stream down in Texas. As the southern stream begins to eject, the next northern stream shortwave is dropping down through the northern plains. Right now the timing between the two streams is off, but I believe this will be the next time period that will need to be watched for a significant east coast storm. The models will likely struggle with regards to the timing with the ejecting southern stream wave. In any event the 12z GFS has a strong southern stream low attempting to ride up the alps days 5-6 and then off the NJ coast. The end result is a sub 1000mb low just south of Long Island at hour 147. Even though it's rain, the cold air is not that far away.

Ive heard "the cold isnt that far away" line before. We're going to have to see what this storm and cold air does as we reach the thursday/ friday time frame. This is pure timing and it wont take much of a shift to make this a nice little snow threat

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