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January Forecast Discussion


REDMK6GLI

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Love ACE , he gave his reasoning , it was sound , could have easily broke his .

Models caught this in 36 hours , no one was on this a week ago  .

 

The impressive part of this is how many lucky breaks we have been getting in recent years even

when Atlantic blocking has been transient. The October 2011  snowstorm and the early January

this year were just two examples of a quick cash in during a break  a wall to wall raging +AO pattern.  

Tuesdays event is all about exploiting the high rations on the edge of the Arctic boundary without the 

benefit of a Davis Strait block in a progressive pattern. Recent years are a big departure from growing

up in the 80's to early 90's when we had so many fewer memorable events. Many people on here

can remember all the disappointments with storms than never panned out. You knew it was game

over in those days when the forecast was a warning level snow event only to see the

moon shining through a thin overcast. ;)

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The impressive part of this is how many lucky breaks we have been getting in recent years even

when Atlantic blocking has been transient. October 2011 late snowstorm and the early January

this year were just two examples of a quick cash in a wall to wall raging +AO pattern. Tomorrows 

event is all about exploiting the high rations on the edge of the Arctic boundary without the benefit

of a Davis Strait block in a progressive pattern. Recent years are a big departure from growing

up in the 80's to early 90's when we had so many fewer memorable events. Many people on here

can remember all the disappointments with storms than never panned out. You knew it was game

over in those days when the forecast was a warning level snow event only to see the

moon shining through a thin overcast. ;)

I cant tell you how many times as a kid ,I would listen to KWO 35  162.55 MHz  lol rings like a bell .

And listen as stuff would just evaporate as the week went on .

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I cant tell you how many times as a kid ,I would listen to KWO 35  162.55 MHz  lol rings like a bell .

And listen as stuff would just evaporate as the week went on .

 

This January is very rare to feature two 6-12" Arctic boundary events. We even missed out during 

the frigid January 1994 when the Arctic wave blasted Eastern PA. and we got rain and 40 degrees

right before dropping below zero.

 

http://www.meteo.psu.edu/ewall/NARR/1994/us0118.php

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This January is very rare to feature two 6-12" Arctic boundary events. We even missed out during 

the frigid January 1994 when the Arctic wave blasted Eastern PA. and we got rain and 40 degrees

right before dropping below zero.

 

http://www.meteo.psu.edu/ewall/NARR/1994/us0118.php

this storm could end up giving us as much snow as the late January 1994 clipper with 4-5" of snow and zero temperatures right after...it probably won't get that cold...

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eps_z500a_noram_61.png

That's the pattern we go to right after the SB , High heights from the PAC thru  Alaska up to the pole and now into Greenland , Nice SE Ridge to offer resistance so storms don't get shunted  and the trough into the CONUS.

 

So you break the jet under , you block storms from cutting and theres nothing but low level arctic air being

drawn into the bottom of the trough . SO LIKE 1994 the old Amarillo to AC express could begin .

Expect that trough to deeper , this is a mean at 15 days .

SB week is cold , just not brutal , there are 2 systems next week as well as a SB system still on the maps . Today is not 1 and done .

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The 1st one HM picked out a week ago , the 2nd the SB .

Looks like now its Friday into Sunday but tapering down by kickoff..but still would be a massive headache from a travel standpoint and another arctic blast right behind it would mean teens for the game. Lots can change but I'm amazed at the run to run consistency for this

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Looks like now its Friday into Sunday but tapering down by kickoff..but still would be a massive headache from a travel standpoint and another arctic blast right behind it would mean teens for the game. Lots can change but I'm amazed at the run to run consistency for this

Today its a solid 10 to 15 , another weaker wave this Sat , but plenty of cold through the 5th , 

prob get a day or 2 of above as the trough reloads , but it comes again

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Game time, going to be rip city

Incoming...RADAR TRENDS AS OF 10Z SHOW SOME BANDING ACROSS SRN PA...ALIGNED WITH WEAK FRONTOGENETICAL FORCING. THIS BAND SHOULD INTENSIFY AND EXPAND EWD LATER TODAY WITH HEAVIER SNOW RATES FROM MD/ERN PA INTO NEW JERSEY AND SRN NEW YORK WHERE DEEP FRONTOGENETICAL FORCING WILL BOTH INTENSIFY AND BE ALIGNED WITH TEMPERATURE PROFILES FAVORABLE FOR MAXIMUM DENDRITIC GROWTH. ..JEWELL.. 01/21/2014

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Game time, going to be rip city

Incoming...RADAR TRENDS AS OF 10Z SHOW SOME BANDING ACROSS SRN PA...ALIGNED WITH WEAK FRONTOGENETICAL FORCING. THIS BAND SHOULD INTENSIFY AND EXPAND EWD LATER TODAY WITH HEAVIER SNOW RATES FROM MD/ERN PA INTO NEW JERSEY AND SRN NEW YORK WHERE DEEP FRONTOGENETICAL FORCING WILL BOTH INTENSIFY AND BE ALIGNED WITH TEMPERATURE PROFILES FAVORABLE FOR MAXIMUM DENDRITIC GROWTH. ..JEWELL.. 01/21/2014

 

Wow! Nice. :)

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eps_z500a_noram_61.png

That's the pattern we go to right after the SB , High heights from the PAC thru  Alaska up to the pole and now into Greenland , Nice SE Ridge to offer resistance so storms don't get shunted  and the trough into the CONUS.

 

So you break the jet under , you block storms from cutting and theres nothing but low level arctic air being

drawn into the bottom of the trough . SO LIKE 1994 the old Amarillo to AC express could begin .

Expect that trough to deeper , this is a mean at 15 days .

SB week is cold , just not brutal , there are 2 systems next week as well as a SB system still on the maps . Today is not 1 and done .

 

I like how the JMA and Euro week 2 forecasts saw the big ridge over western NOAM and potential for cold

here over the next week from January 9th.

 

Euro 1-9-14 run

 

http://fox12weather.files.wordpress.com/2014/01/500za_week2_bg_na2.png

 

JMA Weekly 1-9-14 run

 

 

 

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I like how the JMA and Euro week 2 forecasts saw the big ridge over western NOAM and potential for cold

here over the next week from January 9th.

 

Euro 1-9-14 run

 

http://fox12weather.files.wordpress.com/2014/01/500za_week2_bg_na2.png

 

JMA Weekly 1-9-14 run

 

attachicon.gifY201401.D0912.png

It really is one of the better long term active patterns we have seen around here .

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It really is one of the better long term active patterns we have seen around here .

 

2 high ratio Arctic boundary events where a part of the region sees 12" or more  inches of snow and the temps dip

to under 10 following the storm in one month  is rare. Add to the mix the convective events where we saw

lightning one week and lightning, hail, sleet, snow, and rain  the following week and you have a very impressive pattern.

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2 high ratio Arctic boundary events where a part of the region sees 12" or more  inches of snow and the temps dip

to under 10 following the storm in one month  is rare. Add to the mix the convective events where we saw

lightning one week and lightning, hail, sleet, snow, and rain  the following week and you have a very impressive pattern.

f144.gif

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Pretty damn epic, maybe one or two days barely above freezing since we always tend to moderate more than the models show in between shots of arctic air

 

It's been a while since we have seen a week to ten day period this cold here.

 

 

10 day mean temperature anomaly

View the forecast of the normalised mean temperature anomaly for the next 10 days. The forecast starts at 00Z of the day indicated in the figure. The anomaly is with respect to the climatological mean temperature. The forecast was obtained by applying a regression equation to the ensemble mean 1000-500 hPa thickness. The contours are 0.43 multiples of the standard deviation.

 

 

 

 

 

 

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