October 2023 Forecasts And Discussions

Weather reports, analysis etc. pertaining to Southern BC.
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Hawk
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Re: October 2023 Forecasts And Discussions

Post by Hawk »

Bonovox wrote: Fri Oct 06, 2023 10:22 pm My gut says yes, with it being an El Niño year, we will finish the winter warmer than normal. However, with the PDO and QBO both trending negative (at least right now), we will have periods of active weather and end up wetter than normal. I don’t think we’ll see the typical split flow hell. I’ll probably be wrong though.
You are prolly going to be right. Lets get Jr's take too. You forgot to add in some anomalous major snows though..right Jr? :thumbup: :thumbup:
And here it is..December 2024 all snow geeks have been waiting for :silent: ..with the LR weather "charts" calling for a cold and snowy month. Where's the troffing? :silent: :silent:
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Re: October 2023 Forecasts And Discussions

Post by Catnip »

Hawk wrote: Sat Oct 07, 2023 7:16 am You are prolly going to be right. Lets get Jr's take too. You forgot to add in some anomalous major snows though..right Jr? :thumbup: :thumbup:
We need some #patternlocks featuring cold and snow!

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

:catnip: :alert:

#teamsnow #surprises #beginningofFEB #FEB

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Re: October 2023 Forecasts And Discussions

Post by Bonovox »

Hawk wrote: Sat Oct 07, 2023 7:16 am You are prolly going to be right. Lets get Jr's take too. You forgot to add in some anomalous major snows though..right Jr? :thumbup: :thumbup:
I think if we get anything, it will be front loaded. Late November to the end of December.
Spring/Summer :sick: Fall/Winter :thumbup:

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Re: October 2023 Forecasts And Discussions

Post by Catnip »

High of +28.0c so far today.

:sweat:
IMG_5325.jpeg
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*Maps are posted for discussion/entertainment purposes only, and not because I necessarily believe them to be true.

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Re: October 2023 Forecasts And Discussions

Post by Typeing3 »

SouthSardiswx wrote: Sat Oct 07, 2023 1:57 am Surprisingly Taccurate l looked up the Dec/72 Grey cup game and indeed it was held Dec 3rd the first time ever in December and it was played in Hamilton it was cold there as well.
I'm thinking it was a coast to coast outbreak l didn't check YVR or YXX for Dec 3rd/72 l just remember it was clear the day the game was played it was low scoring 13-10 for Hamilton over the Riders the only other time the Grey cup was played in Dec was Dec 2021 due to a later played shortened season after Covid.
We reached a summer like high of 26c on Friday in the central valley. :thumbup:
Edit:
According to YXX Dec /72 stats it was indeed day 1 out the outbreak it lasted until Dec 13th l didn't check snowfall during the event or coming out of the event l recall clear and cold during the whole event.
December 1972 cold snap stats

YVR (high/low/snow)
Dec 2: 5.0c/-0.6c/trace
Dec 3: 1.1c/-4.4c/0cm
Dec 4: -1.1c/-10.0c/0cm
Dec 5: 0.0c/-5.6c/trace
Dec 6: -1.1c/-8.3c/0cm
Dec 7: -3.9c/-10.6c/0cm
Dec 8: -3.3c/-11.1c/0.3cm
Dec 9: 0.0c/-8.3c/2.0cm
Dec 10: -2.2c/-10.6c/trace
Dec 11: -1.1c/-2.8c/7.1cm
Dec 12: 0.6c/-10.6c/trace
Dec 13: 0.6c/-5.0c/5.3cm
Dec 14: 1.1c/-8.9c/trace


Port Coquitlam (high/low/snow)
Dec 2: 2.2c/-3.9c/0cm
Dec 3: 0.0c/-7.8c/0cm
Dec 4: 1.1c/-12.8c/2.5cm
Dec 5: -1.1c/-12.2c/0cm
Dec 6: -1.7c/-5.6c/0cm
Dec 7: -2.8c/-15.0c/0cm
Dec 8: -3.9c/-15.6c/0.8cm
Dec 9: 0.0c/-8.9c/0cm
Dec 10: -2.2c/-13.9c/trace
Dec 11: -1.1c/-10.6c/9.7cm
Dec 12: 2.2c/-13.9c/2.5cm
Dec 13: -1.1c/8.3c/10.4cm
Dec 14: 2.2c/-8.3c/0cm


Pitt Meadows (high/low/snow)
Dec 2: 2.2c/-2.2c/0cm
Dec 3: 0.0c/-2.8c/0cm
Dec 4: -2.2c/-10.6c/0cm
Dec 5: 0.0c/-6.7c/0cm
Dec 6: -2.2c/-5.0c/0cm
Dec 7: -2.8c/-12.2c/0cm
Dec 8: -4.4c/-14.4c/1.3cm
Dec 9: -1.1c/-9.4c/0cm
Dec 10: -2.2c/-13.3c/0cm
Dec 11: 0.0c/-3.9c/5.1cm
Dec 12: 0.6c/-13.9c/2.5cm
Dec 13: -1.1c/-8.9c/12.7cm
Dec 14: 1.1c/-3.3c/0cm


Surrey Newton (high/low/snow)
Dec 2: 0.0c/-4.4c/0cm
Dec 3: 0.0c/-4.4c/0cm
Dec 4: -2.2c/-8.9c/trace
Dec 5: -1.1c/-5.6c/0cm
Dec 6: -2.8c/-5.6c/0cm
Dec 7: -4.4c/-16.7c/0cm
Dec 8: -3.9c/-12.8c/2.3cm
Dec 9: -1.1c/-9.4c/0cm
Dec 10: -2.8c/-11.1c/trace
Dec 11: -1.7c/-3.3c/12.7cm
Dec 12: 1.7c/-9.4c/0cm
Dec 13: -1.1c/-6.7c/4.6cm
Dec 14: 1.1c/-6.7c/trace


YXX (high/low/snow)
Dec 2: 3.9c/-2.8c/0.8cm
Dec 3: -2.2c/-6.1c/0cm
Dec 4: -2.2c/-7.8c/0cm
Dec 5: -3.3c/-5.6c/trace
Dec 6: -4.4c/-7.2c/0cm
Dec 7: -5.0c/-9.4c/0cm
Dec 8: -3.9c/-10.0c/0cm
Dec 9: -0.6c/-11.1c/0.5cm
Dec 10: -1.1c/-13.3c/0cm
Dec 11: -1.7c/-6.7c/10.2cm
Dec 12: 0.0c/-9.4c/trace
Dec 13: -1.7c/-8.9c/8.9cm
Dec 14: 0.6c/-7.2c/trace
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Re: October 2023 Forecasts And Discussions

Post by Typeing3 »

12z GFS ensembles:
ens_image - 2023-10-07.png
12z ECMWF ensembles:
ens_image - 2023-10-07T.png
12z GEM ensembles:
ens_image - 2023-10-07T1.png



----------------------------------------
20231007230743-4d4e2ea5c6c33ea43e075a16390d6843c8f17b64.png
20231007230732-e3b84a9a3b8ba1b88deb500f8e5f24aa683f5c77.png
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Re: October 2023 Forecasts And Discussions

Post by Bonovox »

Catnip wrote: Sat Oct 07, 2023 3:28 pm High of +28.0c so far today.

:sweat:
Too hot for me, Catman. Luckily it cools down quickly after sunset.
Spring/Summer :sick: Fall/Winter :thumbup:

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Re: October 2023 Forecasts And Discussions

Post by Typeing3 »

Catnip wrote: Sat Oct 07, 2023 3:28 pm High of +28.0c so far today.

:sweat:

IMG_5325.jpeg
High of 28.5c in east Coquitlam! :clap:
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Re: October 2023 Forecasts And Discussions

Post by SouthSardiswx »

Typeing3 wrote: Sat Oct 07, 2023 6:44 pm High of 28.5c in east Coquitlam! :clap:
:shock: You nailed it again Tman we reached a high of 26c in the central valley.
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Re: October 2023 Forecasts And Discussions

Post by SouthSardiswx »

Typeing3 wrote: Sat Oct 07, 2023 4:01 pm December 1972 cold snap stats

YVR (high/low/snow)
Dec 2: 5.0c/-0.6c/trace
Dec 3: 1.1c/-4.4c/0cm
Dec 4: -1.1c/-10.0c/0cm
Dec 5: 0.0c/-5.6c/trace
Dec 6: -1.1c/-8.3c/0cm
Dec 7: -3.9c/-10.6c/0cm
Dec 8: -3.3c/-11.1c/0.3cm
Dec 9: 0.0c/-8.3c/2.0cm
Dec 10: -2.2c/-10.6c/trace
Dec 11: -1.1c/-2.8c/7.1cm
Dec 12: 0.6c/-10.6c/trace
Dec 13: 0.6c/-5.0c/5.3cm
Dec 14: 1.1c/-8.9c/trace


Port Coquitlam (high/low/snow)
Dec 2: 2.2c/-3.9c/0cm
Dec 3: 0.0c/-7.8c/0cm
Dec 4: 1.1c/-12.8c/2.5cm
Dec 5: -1.1c/-12.2c/0cm
Dec 6: -1.7c/-5.6c/0cm
Dec 7: -2.8c/-15.0c/0cm
Dec 8: -3.9c/-15.6c/0.8cm
Dec 9: 0.0c/-8.9c/0cm
Dec 10: -2.2c/-13.9c/trace
Dec 11: -1.1c/-10.6c/9.7cm
Dec 12: 2.2c/-13.9c/2.5cm
Dec 13: -1.1c/8.3c/10.4cm
Dec 14: 2.2c/-8.3c/0cm


Pitt Meadows (high/low/snow)
Dec 2: 2.2c/-2.2c/0cm
Dec 3: 0.0c/-2.8c/0cm
Dec 4: -2.2c/-10.6c/0cm
Dec 5: 0.0c/-6.7c/0cm
Dec 6: -2.2c/-5.0c/0cm
Dec 7: -2.8c/-12.2c/0cm
Dec 8: -4.4c/-14.4c/1.3cm
Dec 9: -1.1c/-9.4c/0cm
Dec 10: -2.2c/-13.3c/0cm
Dec 11: 0.0c/-3.9c/5.1cm
Dec 12: 0.6c/-13.9c/2.5cm
Dec 13: -1.1c/-8.9c/12.7cm
Dec 14: 1.1c/-3.3c/0cm


Surrey Newton (high/low/snow)
Dec 2: 0.0c/-4.4c/0cm
Dec 3: 0.0c/-4.4c/0cm
Dec 4: -2.2c/-8.9c/trace
Dec 5: -1.1c/-5.6c/0cm
Dec 6: -2.8c/-5.6c/0cm
Dec 7: -4.4c/-16.7c/0cm
Dec 8: -3.9c/-12.8c/2.3cm
Dec 9: -1.1c/-9.4c/0cm
Dec 10: -2.8c/-11.1c/trace
Dec 11: -1.7c/-3.3c/12.7cm
Dec 12: 1.7c/-9.4c/0cm
Dec 13: -1.1c/-6.7c/4.6cm
Dec 14: 1.1c/-6.7c/trace


YXX (high/low/snow)
Dec 2: 3.9c/-2.8c/0.8cm
Dec 3: -2.2c/-6.1c/0cm
Dec 4: -2.2c/-7.8c/0cm
Dec 5: -3.3c/-5.6c/trace
Dec 6: -4.4c/-7.2c/0cm
Dec 7: -5.0c/-9.4c/0cm
Dec 8: -3.9c/-10.0c/0cm
Dec 9: -0.6c/-11.1c/0.5cm
Dec 10: -1.1c/-13.3c/0cm
Dec 11: -1.7c/-6.7c/10.2cm
Dec 12: 0.0c/-9.4c/trace
Dec 13: -1.7c/-8.9c/8.9cm
Dec 14: 0.6c/-7.2c/trace
That's interesting we had a snowfall 2 day's before the warm up and then another one on the final day but yah it was a long dry event nice. :thumbup:
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Re: October 2023 Forecasts And Discussions

Post by SouthSardiswx »

Fall colors Chilliwack mountain :D
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Re: October 2023 Forecasts And Discussions

Post by AbbyJr »

Typeing3 wrote: Fri Oct 06, 2023 1:17 pm 1972-73 analogue? :think:

Big cold snap in early December that winter from a similar setup. Backdoorish and fairly dry but still pretty potent and cold and long enough to freeze over the local lakes.
Similar to the early December 2016 cold snap?
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Re: October 2023 Forecasts And Discussions

Post by AbbyJr »

Bonovox wrote: Fri Oct 06, 2023 10:22 pm My gut says yes, with it being an El Niño year, we will finish the winter warmer than normal. However, with the PDO and QBO both trending negative (at least right now), we will have periods of active weather and end up wetter than normal. I don’t think we’ll see the typical split flow hell. I’ll probably be wrong though.
Agreed.

I’m thinking October is fairly dry but we get some rain here and there, especially towards the end of the month.

As for November, I think theres a sold chance we end up either near or slightly above average for rainfall. Could see a big windstorm. For some reason, I’m feeling one is coming but that could just be my biased opinion because I personally love wind events. But we haven’t seen a big windstorm since December 2018 so it wouldn’t surprise me to see at least one during the month.

Moving into December, I think there is good potential for an early to mid month cold snap. Probably ends up back door but could be a direct blast from the north. It’s impossible to say at this point but just staying conservative for now.

January and February will probably end up being split between warm and wet and mild and dry.

Unfortunately, I don’t expect the January curse to be broken this winter. :bang: :bang: :bang:

Overall, I think the -PDO/-QBO will save us from a fall and winter failure. My guess is that we see a taste of typical El Niño conditions with some La Niña mixed in. That said, I’m excited for the upcoming season. :clap: :D :thumbup:
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Re: October 2023 Forecasts And Discussions

Post by SouthSardiswx »

AbbyJr wrote: Sat Oct 07, 2023 8:35 pm Similar to the early December 2016 cold snap?
That was o.k. Jr. man snow at the beginning and then a stiff dry outflow some more snow before Christmas lots of reference to an annus outflow :wtf: -2c air temp and a dewpoint -20c.
Didn't western sections do good with snowfall at the beginning leaving the valley donut holed.
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Re: October 2023 Forecasts And Discussions

Post by SouthSardiswx »

AbbyJr wrote: Sat Oct 07, 2023 8:55 pm Agreed.

I’m thinking October is fairly dry but we get some rain here and there, especially towards the end of the month.

As for November, I think theres a sold chance we end up either near or slightly above average for rainfall. Could see a big windstorm. For some reason, I’m feeling one is coming but that could just be my biased opinion because I personally love wind events. But we haven’t seen a big windstorm since December 2018 so it wouldn’t surprise me to see at least one during the month.

Moving into December, I think there is good potential for an early to mid month cold snap. Probably ends up back door but could be a direct blast from the north. It’s impossible to say at this point but just staying conservative for now.

January and February will probably end up being split between warm and wet and mild and dry.

Unfortunately, I don’t expect the January curse to be broken this winter. :bang: :bang: :bang:

Overall, I think the -PDO/-QBO will save us from a fall and winter failure. My guess is that we see a taste of typical El Niño conditions with some La Niña mixed in. That said, I’m excited for the upcoming season. :clap: :D :thumbup:
Interesting thoughts Jr. man our Wpro 2.0 :thumbup:
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