January 2025 Forecasts And Discussions

Weather reports, analysis etc. pertaining to Southern BC.
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Re: January 2025 Forecasts And Discussions

Post by Storm »

Radar wrote: Tue Jan 28, 2025 2:23 pm 3-6”? Doesn’t take much to impress you. Haha
20 cm is quite good, after the winter we had so far.
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Re: January 2025 Forecasts And Discussions

Post by Storm »

wetcoast91 wrote: Tue Jan 28, 2025 2:25 pm Models are models. The forecast actually looks pretty spot on for YVR. Upper obvs are cold but temps near sea level could rise to +3 or +4 when precip isn't falling. There could be rain showers in areas near sea level while Catnip and Hound see 15cm and models will generally do poorly in these setups. It's why you still need human input to correct this.

I expect EC to release a statement by tomorrow.
Upper level and thickness is all in place by Friday evening.
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Re: January 2025 Forecasts And Discussions

Post by Catnip »

No snow based on the 18Z GFS through Saturday afternoon.

Sunday into Monday morning is when it is showing some decent accumulations. Of course this is just the 18z. Expect many more changes in the next few days.
1.png
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2025-2026 Snowfall - ZERO.OOcm

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Re: January 2025 Forecasts And Discussions

Post by Catnip »

Pretty big crash in 850 temps on Friday evening.

Friday 4pm
4pm.png
Friday 10pm
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Re: January 2025 Forecasts And Discussions

Post by Typeing3 »

Storm wrote: Tue Jan 28, 2025 12:48 pm -10°C 850mb by Friday evening. The weekend will be full of surprises.
Screenshot_20250128_124733_Edge.jpg
As mentioned, NAM is notoriously too aggressive with the push of cold air from the north. Expect it to correct over the next couple days. Once it's within 48 hours it's good.
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Re: January 2025 Forecasts And Discussions

Post by Storm »

Typeing3 wrote: Tue Jan 28, 2025 2:36 pm As mentioned, NAM is notoriously too aggressive with the push of cold air from the north. Expect it to correct over the next couple days. Once it's within 48 hours it's good.
That's GFS
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Re: January 2025 Forecasts And Discussions

Post by Weather101 »

VanCitySouth wrote: Tue Jan 28, 2025 1:50 pm Oh? Do tell.
Now, I'm probably wrong, but my theory is pretty simple at its root. Everyone knows we have seasonal lag when it comes to weather; hence, why the coldest temperatures are usually in January (Toronto, for example).

My theory is that longer, hotter summers and a warmer climate causes a delay in the onset of winter.. This seasonal lag also affects how long it takes the ocean temperature to cool down, delaying the feeling of being in the "middle of winter." So now February is the coldest month.

Again, I'm probably completely wrong, but it made sense in my brain. :lol:
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Re: January 2025 Forecasts And Discussions

Post by Weather101 »

Storm wrote: Tue Jan 28, 2025 2:26 pm 20 cm is quite good, after the winter we had so far.
20 cm is very good lol
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Re: January 2025 Forecasts And Discussions

Post by Typeing3 »

Storm wrote: Tue Jan 28, 2025 2:13 pm GFS has stall L spinning bands of ❄️.
prateptype_cat-imp.us_nw.png
Looks like a golden setup for snow while remaining fairly cold as well. Low is closer to the coast and not pushing too far offshore and phasing with that energy pushing northwards from Hawaii as has been seen on other runs.
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Re: January 2025 Forecasts And Discussions

Post by Typeing3 »

Storm wrote: Tue Jan 28, 2025 2:37 pmThat's GFS
Oh it is? Trying to keep up. Too many new posts. :lol:
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Re: January 2025 Forecasts And Discussions

Post by Rubus_Leucodermis »

:sick: Definitely some signs of air stagnation today. Was “nice” and gunky over Richmond this morning. Smokestack plumes were going up, then would hit the top of the inversion layer and spread out. Seems to have gotten pushed east a bit for the moment. There was a ugly brownish cloud over Surrey about 15 minutes ago. No photos because I was in freeway traffic.
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Re: January 2025 Forecasts And Discussions

Post by Catnip »

Monday would remain below freezing with snow on the ground. Tuesday am looks cold. :chilly:

All based on this run of course.
monday pm.png
tuesday am.png
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Re: January 2025 Forecasts And Discussions

Post by Storm »

They and all within a couple of hours it seems with the push. RGEM and GFS are in lockstep.
925th.us_nw (1).png
925th.us_nw (2).png
925th.us_nw (3).png
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Last edited by Storm on Tue Jan 28, 2025 2:42 pm, edited 1 time in total.
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Re: January 2025 Forecasts And Discussions

Post by Typeing3 »

Catnip wrote: Tue Jan 28, 2025 2:40 pm Monday would remain below freezing with snow on the ground. Tuesday am looks cold. :chilly:

All based on this run of course.

monday pm.png
tuesday am.png
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Re: January 2025 Forecasts And Discussions

Post by Typeing3 »

Catnip wrote: Tue Jan 28, 2025 2:33 pm No snow based on the 18Z GFS through Saturday afternoon.

Sunday into Monday morning is when it is showing some decent accumulations. Of course this is just the 18z. Expect many more changes in the next few days.

1.png
2.png
Arctic front still on track for Saturday night?
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