December 2022 Forecasts And Discussions

[Catnip]

46cm so far this week.

Could be well over 70cm by the end of the week.

Wow.

[Forrest Gump]

Who's coming with me snowshoeing above the Westwood Plateau this afternoon?

And then a polar bear swim at Buntzen lake?...

[Canada Goose]

-26°C at the Coquihalla Summit (1,230 m).

[wetcoast91]

46cm so far this week.

Could be well over 70cm by the end of the week.

Wow.

Then 4-6" of mild rain on top of this.

[Canada Goose]

And then a polar bear swim at Buntzen lake?...

That's for January 1st. I do that every year since 2020.

[Roberts Creeker]

Looks like that’s all she wrote except perhaps for a few lingering flurries. 10.5" or just under 27 cm total. I will round it up to 27.

Well, that was fun! 9cm since 12:30 am and 20.5 cm settled accumulation. Toasty warm now -1.7c dp -2.9c.

[Catnip]

Then 4-6" of mild rain on top of this.

A shame we couldn't get a ridge to build in after Friday.

[Pumpkin Seed]

https://twitter.com/TransLink/status/16 ... YXjUQ&s=19

I dropped off my daughter at Bridgeport station around 8:30 and an hour later she called saying that the line there didn’t even move an inch and everybody was frozen there. No translink update or what on the phone. Ended up I drove back there to pick her up and drove her all the way to downtown. Yup, translink is just a piece of sh**!

[Canada Goose]

Pitt Meadows snow depth.

Capture d’écran 2022-12-20 à 11.34.11.jpg

[Shar]

I'm so happy everyone is getting a good dose of winter, much anticipated and no rug pull!!!!! I didn't get much snow out of this storm, as I suspected, the wind took care of most of the moisture. I have probably about 2cm of new snow, its hard to tell with it blowing in every direction. The snow isn't the big issue here its the cold and ice, I live off grid with micro-hydro power and we have very low water and very cold temps threatening to cut our power. Winter is still my fav season even with all the challenges.

[Nimbus2]

This is interesting - A surge of Arctic air and snow has moved back into Seattle!

KSEA 201931Z 03013KT 3/4SM R16L/4500VP6000FT -SN BR OVC005 M01/M02 A3004 RMK AO2 P0006 T10111022
KSEA 201853Z 01012KT 3/4SM R16L/P6000FT -SN BR BKN003 OVC011 M01/M02 A3005 RMK AO2 RAE19SNB19 SLP185 P0017 T10061017
KSEA 201843Z 02013KT 3/4SM R16L/4500VP6000FT -SN BR BKN003 OVC011 M01/M02 A3004 RMK AO2 RAE19SNB19 P0015 T10061017
KSEA 201820Z 01014KT 1 1/2SM -SN BR BKN003 OVC011 00/M01 A3004 RMK AO2 RAE19SNB19 P0008 T00001011
KSEA 201753Z 01013KT 2SM -RA BR BKN003 OVC011 01/00 A3003 RMK AO2 SLP178 P0019 60039 T00110000 10056 20006 53007
KSEA 201715Z 29010G20KT 2SM RA BR BKN006 OVC012 04/03 A3001 RMK AO2 P0004 T00390028

[wetcoast91]

A shame we couldn't get a ridge to build in after Friday.

Would prefer a gradual or slow melt too. A rapid thaw means higher slope instability increasing avalanche and landslide risks.

The bigger issue though is going to be potential flooding. The snowpack can usually absorb a days worth of rain but now we got 3-5 days of mild rain with 2500m snow levels coming with unusual amounts of snow below 500m. Low lying areas should already be on high alert.

Don't forget to keep storm drains and approaches to storm drains clear.

[Forrest Gump]

Warnings
11:38 AM PST Tuesday 20 December 2022
Arctic outflow warning in effect for:

Metro Vancouver - central including the City of Vancouver Burnaby and New Westminster
Metro Vancouver - North Shore including West Vancouver and North Vancouver
Metro Vancouver - northeast including Coquitlam and Maple Ridge
Metro Vancouver - southeast including Surrey and Langley
Metro Vancouver - southwest including Richmond and Delta
Strong outflow winds and cold wind chill values will continue.

Locations: Metro Vancouver and Fraser Valley.

Threat: Bitterly cold temperatures and strong winds through the Lower Mainland.

Wind Chill Values: Minus 25 to minus 20 in Metro Vancouver, Fraser Valley West including Abbotsford and Fraser Valley Central including Chilliwack. Minus 30 to minus 25 in Fraser Valley East including Hope.

Time span: Today through Thursday.

Remarks: An arctic front has brought in a cold airmass to the south coast. Strong outflow winds are bringing temperatures 5 to 10 degrees below seasonal normals resulting in wind chill values approaching minus 20 to minus 30 over the Lower Mainland.

Ensure that shelter is provided for pets and outdoor animals. Be prepared for unusually cold temperatures and strong winds.

[Rubus_Leucodermis]

Pitt Meadows snow depth.


Capture d’écran 2022-12-20 à 11.34.11.jpg

Really did badly on this one. Got less than Pitt Meadows here overnight.

Still got over 25 cm, though.

[Hawk]

Who's coming with me snowshoeing above the Westwood Plateau this afternoon?

I'm with you 100%, in thoughts only. Enjoy