January 2025 Forecasts And Discussions

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

Post by AbbyJr »

Monty wrote: Thu Jan 30, 2025 12:00 pm Maybe it’ll work out. I’m just curious how much of that might fall as non accumulating snow before the colder air arrives. Looks like the modified arctic air will arrive into the Fraser valley sometime Sunday, but the timing is still up in the air. And there are some signs of convergence along the outflow boundary later Sunday but to have any confidence in amounts with that at this range is impossible.
No doubt some of the snow that could fall earlier on Saturday will struggle to stick. But for what it's worth, the Euro snow depth map looks solid. Much more believable than the 40cm shown on the other map. I'm still somewhat skeptical given the GEM shows much less snowfall. :think: :wave:

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Re: January 2025 Forecasts And Discussions

Post by Canada Goose »

PortKells wrote: Thu Jan 30, 2025 12:22 pm This keeps going up:

nbm-conus-vancouverski-total_snow_cm-8713600.png
Not gonna happen.
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Re: January 2025 Forecasts And Discussions

Post by AbbyJr »

PortKells wrote: Thu Jan 30, 2025 12:20 pm Several members don't go above freezing for 10+ days.
Incredible snowy cold snap if this verifies. :shock: :clap: :D
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Re: January 2025 Forecasts And Discussions

Post by Nordelian »

PortKells wrote: Thu Jan 30, 2025 12:26 pm That's not accurategem-all-vancouverski-total_snow_kuchera_cm-8681200.png.
Terrain bleed and mixing need to be accounted for.

You can't just post snowfall maps and assume that's what actually will be on the ground.
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Re: January 2025 Forecasts And Discussions

Post by AbbyJr »

Nordelian wrote: Thu Jan 30, 2025 12:33 pm Terrain bleed and mixing need to be accounted for.

You can't just post snowfall maps and assume that's what actually will be on the ground.
To clarify, I never assumed that all of the snow shown on the maps I posted would actually be on the ground. But it gives us a general idea. :thumbup: :flakey:
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Re: January 2025 Forecasts And Discussions

Post by wetcoast91 »

Nordelian wrote: Thu Jan 30, 2025 12:33 pm Terrain bleed and mixing need to be accounted for.

You can't just post snowfall maps and assume that's what actually will be on the ground.
I have seen upper level lows kick up a feature that drops 40cm of snow. I have also seen instances where you never see any organized features and you see very scattered snow showers that accumulate and immediately melt due to diurnal heating.

No model will get this right but I tend to think the amounts are overly exaggerated.
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Re: January 2025 Forecasts And Discussions

Post by Nordelian »

wetcoast91 wrote: Thu Jan 30, 2025 12:42 pm I have seen upper level lows kick up a feature that drops 40cm of snow. I have also seen instances where you never see any organized features and you see very scattered snow showers that accumulate and immediately melt due to diurnal heating.

No model will get this right but I tend to think the amounts are overly exaggerated.
Bang on

Look, higher amounts could happen for some localized areas that get lucky. On the flip side, some areas could get whiffed.
But most realistic outcome is probably more in line with snow depth maps.
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Re: January 2025 Forecasts And Discussions

Post by Nordelian »

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Re: January 2025 Forecasts And Discussions

Post by Monty »

Glacier wrote: Thu Jan 30, 2025 12:19 pm CRAZY warm yesterday!!! 10C in Tatla Lake and Tatlayoko Lake! Also, both Tatla and Puntzi warmed 26 degrees during the day!

diurnalxxx.png


maxbc.png

minbc.png
Clinton had a temperature roller coaster last night
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Re: January 2025 Forecasts And Discussions

Post by PortKells »

Nordelian wrote: Thu Jan 30, 2025 12:33 pm Terrain bleed and mixing need to be accounted for.

You can't just post snowfall maps and assume that's what actually will be on the ground.
To say lowland areas Will get next to nothing or that the maps represent terrain bleed is strange.

Terrain bleed is a smoothed over look where you can clearly see the shape of the mountains bleed halfway into the city
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Re: January 2025 Forecasts And Discussions

Post by Rubus_Leucodermis »

12Z Euro still looking nice and snowy, by the way

.
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ecmwf-deterministic-vancouverski-snow_24hr_kuchera_cm-8627200.png
ecmwf-deterministic-vancouverski-total_snow_kuchera_cm-8627200.png
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It's called clown range for a reason.
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Re: January 2025 Forecasts And Discussions

Post by Catnip »

Appears that the site is struggling now than we have more than 5 people on it.

:bang: :doh: :doh:
*Maps are posted for discussion/entertainment purposes only, and not because I necessarily believe them to be true.

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Re: January 2025 Forecasts And Discussions

Post by Rubus_Leucodermis »

Since someone mentioned snow depth maps…
ecmwf-deterministic-vancouverski-snow_depth_cm-8627200.png
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It's called clown range for a reason.
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Re: January 2025 Forecasts And Discussions

Post by Storm »

PortKells wrote: Thu Jan 30, 2025 12:52 pm To say lowland areas Will get next to nothing or that the maps represent terrain bleed is strange.

Terrain bleed is a smoothed over look where you can clearly see the shape of the mountains bleed halfway into the city
He said the same thing for last year dump.
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Re: January 2025 Forecasts And Discussions

Post by Storm »

This site is horrendous right now.
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