December 2025 Forecasts and Discussions

Weather reports, analysis etc. pertaining to Southern BC.
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wetcoast91
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Re: December 2025 Forecasts and Discussions

Post by wetcoast91 »

PortKells wrote: Sat Dec 27, 2025 10:11 am Generational La Nina dud.
16 minutes ago, Phil said:
Not ready to throw in the towel on winter, plenty of ways back into a good pattern eventually, but the first three weeks of January are (probably) cooked IMO.

Need to score this winter if next winter is a Niño/+QBO though. That’s the worst setup possible for the PNW (and the entire USA as well). Torch city. Even we torch during those winters, despite the occasional blizzard that melts 24hrs later.
Phil will get mobbed and lynched as usual but this looks very similar to that 2014-2016 stretch.
PortKells wrote: Sat Dec 27, 2025 10:13 am How far we've fallen to consider our first true freeze after christmas and some isolated flurries to be victories in a La Nina year. Considering that absolutely nothing is coming for the next 15-20 days. February always brings hope but nothing is guaranteed.
I think we will see a -PNA with the right placement in Feb but the AO will assume a positive phase until late March. Cool but not cold.
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Re: December 2025 Forecasts and Discussions

Post by Hawk »

:alert:
@John

The temperature dropped rapidly in the Similkameeens. EC said dropping to -10 this afternoon, but it was already almost -18 at 8 AM this morning :shock:
Looking forward to our first 3 day stretch of sun and 20c++ 8-)
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Re: December 2025 Forecasts and Discussions

Post by Typeing3 »

Clouds capping high temps here. Currently 1c.
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Re: December 2025 Forecasts and Discussions

Post by wetcoast91 »

GEFS and EPS with the best case scenario. Big ridge developing by mid Jan. Would be a well deserved dry spell for us and set the West Coast up for a cool Feb. :clap:

Image

Amazing consistency. T3 will have to wait another year or two for Jan to deliver.
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Re: December 2025 Forecasts and Discussions

Post by PortKells »

wetcoast91 wrote: Sat Dec 27, 2025 11:24 am GEFS and EPS with the best case scenario. Big ridge developing by mid Jan. Would be a well deserved dry spell for us and set the West Coast up for a cool Feb. :clap:

Image

Amazing consistency. T3 will have to wait another year or two for Jan to deliver.
Crazy how automatic this is in the month of January now.
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Re: December 2025 Forecasts and Discussions

Post by Typeing3 »

wetcoast91 wrote: Sat Dec 27, 2025 11:24 am GEFS and EPS with the best case scenario. Big ridge developing by mid Jan. Would be a well deserved dry spell for us and set the West Coast up for a cool Feb. :clap:

[img]

Amazing consistency. T3 will have to wait another year or two for Jan to deliver.
Would much rather sit under a ridge for weeks than suffer through endless SW flow as we did in November and the first half of December.

Amazing consistency is also 33 years without a legitimately cold January. :tiredos:
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Re: December 2025 Forecasts and Discussions

Post by HarrisonSasquatchWx »

Up to plus 0.8c @ Harrison l wonder if the lake has a moderating effect since l have a north wind off the lake but yet Agassiz is -1.7c any thoughts or my thermometer is wrong.
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Re: December 2025 Forecasts and Discussions

Post by PortKells »

Typeing3 wrote: Sat Dec 27, 2025 11:54 am Would much rather sit under a ridge for weeks than suffer through endless SW flow as we did in November and the first half of December.

Amazing consistency is also 33 years without a legitimately cold January. :tiredos:
At this point, we probably have to consider a 2020 or a 2024 to be a cold Jan. Sadly.
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Re: December 2025 Forecasts and Discussions

Post by Typeing3 »

PortKells wrote: Sat Dec 27, 2025 12:24 pm At this point, we probably have to consider a 2020 or a 2024 to be a cold Jan. Sadly.
Mean temp in January 2020 was 4.6c at YVR. It was warmer than average, even based on the 1991-2020 normals. January 2024 averaged 3.8c.

Meanwhile we've seen December 2008 (0.9c average), December 2016 (0.9c average), February 2019 (0.4c average), December 2021 (0.9c average), and December 2022 (1.4c average). If the same patterns as we saw in those months occurred in January, there's a real chance we'd have seen at least a couple sub-zero monthly averages by now. As it stands, January 1993 is the last month at YVR that accomplished that.
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Re: December 2025 Forecasts and Discussions

Post by Bonovox »

I think the most frustrating aspect of our changing local climate for me, is how cold onshore flow doesn’t produce for coastal areas anymore. This is a purely anecdotal take, of course.
Spring/Summer :sick: Fall/Winter :thumbup:

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Re: December 2025 Forecasts and Discussions

Post by Canada Goose »

PortKells wrote: Sat Dec 27, 2025 12:24 pm At this point, we probably have to consider a 2020 or a 2024 to be a cold Jan. Sadly.
2017 was cold.
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Re: December 2025 Forecasts and Discussions

Post by Typeing3 »

Canada Goose wrote: Sat Dec 27, 2025 1:24 pm 2017 was cold.
Disagree, but my threshold is probably more on the extreme end.
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Re: December 2025 Forecasts and Discussions

Post by Typeing3 »

Hope sitting at -3.8c with an E wind at 22km/h as of 1pm.

:chilly:
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Re: December 2025 Forecasts and Discussions

Post by Bonovox »

Any chance this makes it to us? And if it does, will it just be virga?

Not looking at any models. Will wait to be pleasantly surprised or expectedly disappointed.
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Re: December 2025 Forecasts and Discussions

Post by wetcoast91 »

Bonovox wrote: Sat Dec 27, 2025 1:14 pm I think the most frustrating aspect of our changing local climate for me, is how cold onshore flow doesn’t produce for coastal areas anymore. This is a purely anecdotal take, of course.
Warming waters off the coast and minor temp increases due to the UHI are making a huge difference in marginal setups. Most of our snowfalls in the past would happen with a +0.5C temp. We know both the warmer SST and UHI has been linked to warmer surface temps in Southern California.
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