December 2020 Forecasts and Discussions

Weather reports, analysis etc. pertaining to Southern BC.
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John
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Re: December 2020 Forecasts and Discussions

Post by John »

wetcoast91 wrote: Wed Dec 23, 2020 9:35 am All the models seem to suggest a weak outflow with temps below 925mb near freezing yet output suggest it being all rain this weekend up to 1000m. It's -15C in Princeton right now...

Models are bringing cold pool air late Mon and Tues before a mild system arrives Wednesday.
So what’s it going to be?
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Catnip
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Re: December 2020 Forecasts and Discussions

Post by Catnip »

wetcoast91 wrote: Wed Dec 23, 2020 9:35 am All the models seem to suggest a weak outflow with temps below 925mb near freezing yet output suggest it being all rain this weekend up to 1000m. It's -15C in Princeton right now...

Models are bringing cold pool air late Mon and Tues before a mild system arrives Wednesday.
Last night's Euro was showing some trace amounts of snow for Tues/Weds.
*Maps are posted for discussion/entertainment purposes only, and not because I necessarily believe them to be true.

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wetcoast91
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Re: December 2020 Forecasts and Discussions

Post by wetcoast91 »

Catnip wrote: Wed Dec 23, 2020 10:21 am Last night's Euro was showing some trace amounts of snow for Tues/Weds.
and from what I can see with the pivotal maps...it's no more...Guess the models see a slight onshore push ahead of the initial band.
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PortKells
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Re: December 2020 Forecasts and Discussions

Post by PortKells »

The GFS was pretty for skiers â›·
It appeared that that ssw was pushed back.
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Re: December 2020 Forecasts and Discussions

Post by wetcoast91 »

PortKells wrote: Wed Dec 23, 2020 10:51 am The GFS was pretty for skiers â›·
It appeared that that ssw was pushed back.
SSW looks to be on track...delivering cold to the midwest and Eastern Canada/US. Ridge bridge may lock it in.

Image

...This is a textbook +ENSO. A strong +ENSO signal. That Greenland block is not budging or going anywhere.

Image
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Re: December 2020 Forecasts and Discussions

Post by PortKells »

wetcoast91 wrote: Wed Dec 23, 2020 10:58 am SSW looks to be on track...delivering cold to the midwest and Eastern Canada/US. Ridge bridge may lock it in.

Image

...This is a textbook +ENSO. A strong +ENSO signal. That Greenland block is not budging or going anywhere.

Image
Bah humbug it is then.
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Re: December 2020 Forecasts and Discussions

Post by wetcoast91 »

PortKells wrote: Wed Dec 23, 2020 11:06 am Bah humbug it is then.
Rob:
Garbage. Ensembles through 1/8 and no change in sight. So much for this SSWE doing anything which for the past 2-3 weeks keeps getting pushed further back I've noticed.
CMON ROB CHEER UP. ITS CHRISTMAS. THINK WREATHS OVER NOOSES.CMON!!!!
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Re: December 2020 Forecasts and Discussions

Post by Roberts Creeker »

Warm and rainy on Christmas and Boxing day. :cry: EC is calling for + 6 and + 8 but they have tagged snow onto day 7!!!
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Re: December 2020 Forecasts and Discussions

Post by Michael1 »

wetcoast91 wrote: Wed Dec 23, 2020 10:58 am SSW looks to be on track...delivering cold to the midwest and Eastern Canada/US. Ridge bridge may lock it in.

Image

...This is a textbook +ENSO. A strong +ENSO signal. That Greenland block is not budging or going anywhere.

Image
You have been listening to the dulcet tones of Ebeneezer Wetcoast, bringing the cheeriest of doom for winter.
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Antares
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Re: December 2020 Forecasts and Discussions

Post by Antares »

wetcoast91 wrote: Wed Dec 23, 2020 10:58 am SSW looks to be on track...delivering cold to the midwest and Eastern Canada/US. Ridge bridge may lock it in.

Image

...This is a textbook +ENSO. A strong +ENSO signal. That Greenland block is not budging or going anywhere.

Image
That timeframe is too early for the effects of the SSW to manifest in North America.

Not saying you are wrong though (pesky Greenland block might screw us hard).
It always snows in December in the Kootenays :clap:
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Typeing3
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Re: December 2020 Forecasts and Discussions

Post by Typeing3 »

Antares wrote: Wed Dec 23, 2020 11:47 am That timeframe is too early for the effects of the SSW to manifest in North America.

Not saying you are wrong though (pesky Greenland block might screw us hard).
Move that block west and we can do alright. Need a GOA ridge to build as well though (which we haven't seen a lot of thus far unfortunately).
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Re: December 2020 Forecasts and Discussions

Post by AbbyJr »

Typeing3 wrote: Wed Dec 23, 2020 12:16 pm Move that block west and we can do alright. Need a GOA ridge to build as well though (which we haven't seen a lot of thus far unfortunately).
The reality is that the long range models are useless right now if in fact the SSW verifies. One can only hope the -ENSO/+QBO benefits us.
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Re: December 2020 Forecasts and Discussions

Post by PortKells »

I think the fact that its a +Enso signal makes me dubious considering thats the opposite of our current ENSO.
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PortKells
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Re: December 2020 Forecasts and Discussions

Post by PortKells »

The EPS continues to show cool onshore flow in the medium to long range so I'm not too worried about some crazy mild ridging episode just yet.
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wetcoast91
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Re: December 2020 Forecasts and Discussions

Post by wetcoast91 »

Michael1 has it all wrong. I am the Grinch that Stole Winter and murdered Frosty the Snowman.
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