December 2021 Forecasts And Discussions

[Bonovox]

Kona low.


https://twitter.com/SeattleWXGuy/status ... 61537?s=20

[PortKells]

Abbotsford recorded 28.2 cm of snow on December 8, 1971. Here is the 500mb pattern for that day:

dec81971.gif

Notice the lack of GOA blocking and yet close to 30 cm of snow was recorded. Here's the modelled 500mb pattern for this upcoming Monday:

gfs-deterministic-nhemi-z500_anom-8792000.png

Looks very similar. There was also a -PDO in 1971. My guess is that the majority of our significant NW flow snowfalls were during -PDO winters.

Only major difference is that southwest trough.

[Roberts Creeker]

Weather has already turned cold, found a skim of ice in a mostly empty bucket at 4:30 pm

2.1c and falling, mostly clear

[PortKells]

Almost every long range forecast is eye candy at this point. And it almost always wants to hammer us at the perfect time. Is this reality, or is this just fantasy?

cfs-daily-all-c00-namer-t850_anom_7day-1638468000-1639872000-1642291200-20.gif

cfs-daily-all-avg-namer-t850_anom_7day-1638468000-1639872000-1642291200-20.gif

[PortKells]

gfs-ensemble-extended-all-c00-namer-t850_anom_7day-1638403200-1639699200-1640822400-10.gif

[Bonovox]

Light snow around the area on Saturday morning as per the 00Z 3km NAM.

[Bonovox]

Light snow around the area on Saturday morning as per the 00Z 3km NAM.

Cut back the totals a bit as the clipper moves through a touch quicker.

[Typeing3]

Abbotsford recorded 28.2 cm of snow on December 8, 1971. Here is the 500mb pattern for that day:

dec81971.gif

Notice the lack of GOA blocking and yet close to 30 cm of snow was recorded. Here's the modelled 500mb pattern for this upcoming Monday:

gfs-deterministic-nhemi-z500_anom-8792000.png

Looks very similar. There was also a -PDO in 1971. My guess is that the majority of our significant NW flow snowfalls were during -PDO winters.

I've been mentioning 1971-72 for a while but this upcoming pattern is looking less blocky/amplified than the pattern in Dec '71. But there are definitely some similarities

Also I'd say Mondays system is more akin to the Dec 13, 1971 snowfall.

[Storm]

Not sure what this model is.

Screenshot_20211202-184723_Samsung Internet.jpg

[Michael1]

Almost every long range forecast is eye candy at this point. And it almost always wants to hammer us at the perfect time. Is this reality, or is this just fantasy?


cfs-daily-all-c00-namer-t850_anom_7day-1638468000-1639872000-1642291200-20.gif

cfs-daily-all-avg-namer-t850_anom_7day-1638468000-1639872000-1642291200-20.gif

NO! this is PATRICK!

[Weather101]

Not sure what this model is.
Screenshot_20211202-184723_Samsung Internet.jpg

Tesla model

[Roberts Creeker]

Almost every long range forecast is eye candy at this point. And it almost always wants to hammer us at the perfect time. Is this reality, or is this just fantasy?

It's 2021, instead of under performing, what if they all over perform?!?

[Storm]

Tesla model

Here is your Tesla model

Screenshot_20211202-191209_Samsung Internet.jpg

[BCWeather101]

Good evening everyone. Looking promising for 3 snow events for the bc south coast. First round Friday night into Saturday. Second round Sunday night into Monday. Third round for Tuesday night:) more snow possible later in the week. Fingers crossed here folks i’m keeping my eyes on it!

[Storm]

00z RGEM is also better for Saturday.

Screenshot_20211202-191959_Samsung Internet.jpg