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January Medium/Long Range: A snowy January ahead?


mappy
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9 minutes ago, psuhoffman said:

Not all pac ridge regimes are the same. I keep looking for signs we’re going into a pull latitude central pac ridge centered near Hawaii (that’s what we don’t want) and it keeps getting pushed back. Again today signs of the pac jet extending under the north pac ridging continues to show up.

So long as that happens it pushes ridging into western N America enough to direct the cold further east and avoid the bad pna troughs.  It’s a broader wavelength pattern v the one where storms dig and cut off out west.

I think we end up with a hybrid pattern where there is a North Pacific WPO EPO ridge but without the connection to the tropics of the recent uber -PDO years and that has a better downstream impact on our pattern  


 

  

I'm to the point where I feel the only way the pattern fully snaps and breaks down is the MJO races through 4-5-6 but its hard for me to believe this wave can continue at this amplitude that long

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7 minutes ago, psuhoffman said:

That wave around the 20th which is 2-4" across most guidance right now is the type of thing that can easily juice up to 3-6" come gametime.  If we get a 3-6" snow followed by an arctic blast...well that is not some winter fail imo.  I don't necessarily see a MECS level threat until perhaps after the next cold shot starts to relax but I also don't see some suddent end to our snow chances coming either.  There are also some opportunities to score a little 1-2" event somewhere from a discreet NS wave that wouldn't be showing up yet.  This doesn't look as bad as some seem to be making it.  Why and how did I become the optimist here?  

This wave has some similarities to the 1/21/2014 event. That wave looked rather weak and kept getting better and stronger right up until game time. Also looked too warm a few days out and forecasts kept trending colder. Ended up with 8-9 inches of cold powder here. Less to the south but I think everyone got a 3-7 event. Temps fells through out the storm as it was warmish the couple days before leading into it. 

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14 minutes ago, HighStakes said:

This wave has some similarities to the 1/21/2014 event. That wave looked rather weak and kept getting better and stronger right up until game time. Also looked too warm a few days out and forecasts kept trending colder. Ended up with 8-9 inches of cold powder here. Less to the south but I think everyone got a 3-7 event. Temps fells through out the storm as it was warmish the couple days before leading into it. 

Great catch, I was just thinking about that and looking at it, there are similarities in the pattern also.  

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31 minutes ago, JenkinsJinkies said:

Well that was also the case in recent seasons and they still stopped short. Reminder that DC was less than an inch away from reaching climo in 21-22, it stopped short because one of the final snow events had too much warm air at higher altitudes and it was mostly graupel.

These are two completely different seasons with very different patterns, though.

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45 minutes ago, psuhoffman said:

That wave around the 20th which is 2-4" across most guidance right now is the type of thing that can easily juice up to 3-6" come gametime.  If we get a 3-6" snow followed by an arctic blast...well that is not some winter fail imo.  I don't necessarily see a MECS level threat until perhaps after the next cold shot starts to relax but I also don't see some suddent end to our snow chances coming either.  There are also some opportunities to score a little 1-2" event somewhere from a discreet NS wave that wouldn't be showing up yet.  This doesn't look as bad as some seem to be making it.  Why and how did I become the optimist here?  

So do you think the guide has moved away from the overrunning pattern recently or is that just the ops overdoing the cold at range?

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45 minutes ago, SnowGoose69 said:

I'm to the point where I feel the only way the pattern fully snaps and breaks down is the MJO races through 4-5-6 but its hard for me to believe this wave can continue at this amplitude that long

Our best cold source region is still producing and will continue thru at least first week if Feb

I have been prattling on endlessly about that and have been oh so correct for almost a month 

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19 minutes ago, WEATHER53 said:

Our best cold source region is still producing and will continue thru at least first week if Feb

I have been prattling on endlessly about that and have been oh so correct for almost a month 

You've been right, no one is trying to take that way from you lol 

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Sterling  watching for potential  lol. 

Fwiw...

The trend for colder temperatures continues into early next week
as longwave troughing envelopes much of the CONUS. Waves of low
pressure will have to be monitored for potential wintry precip
during this time given the cold air in place and a baroclinic
zone lurking nearby.
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Fyi, today's weeklies just out maintain BN a lot the first 2 weeks, then keep us normal until the week of 2/17-24. That is a major can-kick from the last several days that had AN getting here starting the week of 2/3.

Fwiw, AN precip the week starting 1/27 and then normal thru 2/24.

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5 minutes ago, mitchnick said:

Fyi, today's weeklies just out maintain BN a lot the first 2 weeks, then keep us normal until the week of 2/17-24. That is a major can-kick from the last several days that had AN getting here starting the week of 2/3.

Fwiw, AN precip the week starting 1/27 and then normal thru 2/24.

Love the sound of that.  Below  normal!!!

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2 hours ago, psuhoffman said:

Not all pac ridge regimes are the same. I keep looking for signs we’re going into a pull latitude central pac ridge centered near Hawaii (that’s what we don’t want) and it keeps getting pushed back. Again today signs of the pac jet extending under the north pac ridging continues to show up.

So long as that happens it pushes ridging into western N America enough to direct the cold further east and avoid the bad pna troughs.  It’s a broader wavelength pattern v the one where storms dig and cut off out west.

I think we end up with a hybrid pattern where there is a North Pacific WPO EPO ridge but without the connection to the tropics of the recent uber -PDO years and that has a better downstream impact on our pattern  


 

  

I agree. Makes sense with a la nina and current Pattern mixup. 

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45 minutes ago, psuhoffman said:

You've been right, no one is trying to take that way from you lol 

Did not say they were

i know it galls you otherwise  you would Not have to jump in so quick 

Think  sometimes Before you respond in an instigative  manner .  The adult is me, not thee 

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6 minutes ago, mitchnick said:

Fyi, today's weeklies just out maintain BN a lot the first 2 weeks, then keep us normal until the week of 2/17-24. That is a major can-kick from the last several days that had AN getting here starting the week of 2/3.

Fwiw, AN precip the week starting 1/27 and then normal thru 2/24.

ive never seen someone be some positive and negative in the same day every day. Never change

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1 minute ago, WEATHER53 said:

Did not say they were

i know it galls you otherwise  you would Not have to jump in so quick 

Think  sometimes Before you respond in an instigative  manner .  The adult is me, not thee 

You must be a lot of fun at parties 

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1 hour ago, WEATHER53 said:

Our best cold source region is still producing and will continue thru at least first week if Feb

I have been prattling on endlessly about that and have been oh so correct for almost a month 

anyone got the current barometric pressure reading in Ulaanbaatar?  I need to check something

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