August 2025 Forecasts and Discussion

Weather reports, analysis etc. pertaining to Southern BC.
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AbbyJr
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Re: August 2025 Forecasts and Discussion

Post by AbbyJr »

Abby_wx wrote: Sat Aug 30, 2025 11:52 am Obviously wrong, but that said, the models seem to be backing down...




https://a.atmos.washington.edu/data/disc_report.html
The Euro has been going way too low on surface temps lately. My guess is upper 20’s to low 30’s with high dew points for next week. :sick: :wave:


Here’s the 18Z RGEM for Abbotsford. Yup, very warm and humid.

IMG_0054.png
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Re: August 2025 Forecasts and Discussion

Post by Coquitlam79 »

Bonovox wrote: Sat Aug 30, 2025 9:16 am Mid August to mid September will be remembered for just relentless heat day after day. Just disgusting.

I think the Goose man is right, if things hold as models show, next week will be historic. :sick:
Last night and this morning I found it very comfortable. Even today, it's warm but not uncomfortable.

One thing is about September heat events are the longer nights are a factor as is the lower sun angle. It might only make a difference of a couple of degrees but that is a difference and that definitely helps especially with overnight cooling. Good news is models are backing off a bit on the heat and the Climate prediction center maintaining a major demaplification of the upper level pattern by late next week. More normal temps, weaker ridging and more zonal flow but still not a major pattern shift yet.
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Re: August 2025 Forecasts and Discussion

Post by Bonovox »

Decent CAPE values around the area tomorrow evening, but I suspect any activity will be over the alpine.
Spring/Summer :sick: Fall/Winter :thumbup:

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Re: August 2025 Forecasts and Discussion

Post by Bonovox »

Coquitlam79 wrote: Sat Aug 30, 2025 3:14 pm Last night and this morning I found it very comfortable. Even today, it's warm but not uncomfortable.

One thing is about September heat events are the longer nights are a factor as is the lower sun angle. It might only make a difference of a couple of degrees but that is a difference and that definitely helps especially with overnight cooling. Good news is models are backing off a bit on the heat and the Climate prediction center maintaining a major demaplification of the upper level pattern by late next week. More normal temps, weaker ridging and more zonal flow but still not a major pattern shift yet.
I need rain Coq man. Days and days of endless rain. I miss it. :(
Spring/Summer :sick: Fall/Winter :thumbup:

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Re: August 2025 Forecasts and Discussion

Post by Typeing3 »

Bonovox wrote: Sat Aug 30, 2025 3:16 pm I need rain Coq man. Days and days of endless rain. I miss it. :(
I'm dreading the endless rain in October, November, December, January, February, March, and April already. :lol:
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Re: August 2025 Forecasts and Discussion

Post by Hawk »

Typeing3 wrote: Sat Aug 30, 2025 4:51 pm I'm dreading the endless rain in October, November, December, January, February, March, and April already. :lol:
Bono’s turn :thumbup:
Looking forward to our first 3 day stretch of sun and 20c++ 8-)
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Re: August 2025 Forecasts and Discussion

Post by AbbyJr »

Canada Goose wrote: Fri Aug 29, 2025 5:36 pm I think many of you don't realize what's in store for us next week... It'll be like June 2021, but in September.
Mark my words.


Capture d’écran 2025-08-29 à 17.36.15.jpg

Capture d’écran 2025-08-29 à 17.36.30.jpg
I'm just curious as to why the models only show surface temps in the upper 20's to low 30's max given those high 850mb temps. Regardless, I'd be shocked if next week is anything even close to June 2021. But I could be wrong. I just don't see anything historic on the models. :thumbup: :wave:
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Re: August 2025 Forecasts and Discussion

Post by Rubus_Leucodermis »

AbbyJr wrote: Sat Aug 30, 2025 6:48 pm I'm just curious as to why the models only show surface temps in the upper 20's to low 30's max given those high 850mb temps. Regardless, I'd be shocked if next week is anything even close to June 2021. But I could be wrong. I just don't see anything historic on the models. :thumbup: :wave:
The models have been moderating and backing away from extreme heat in the last 24 hours. At this point, a top tier torch is looking less and less likely.
It's called clown range for a reason.
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Re: August 2025 Forecasts and Discussion

Post by HarrisonSasquatchWx »

Bonovox wrote: Sat Aug 30, 2025 3:15 pm Decent CAPE values around the area tomorrow evening, but I suspect any activity will be over the alpine.
I thought today was supposed to be prime for Tstorms l totally forgot.
Surprised marine layer this morning but burned off b4 lunch we reached a high of 25c in the central valley desert today.
Taken from Agassiz this afternoon looking at the north side of Cheam which is not visible from Chilliwack proper.
IMG_20250830_163556478.jpg
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Re: August 2025 Forecasts and Discussion

Post by stuffradio »

Apart from getting a final walk through, the Stuffradio family has moved to the pond
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Re: August 2025 Forecasts and Discussion

Post by Rubus_Leucodermis »

SouthSardiswx wrote: Sat Aug 30, 2025 8:32 pm I thought today was supposed to be prime for Tstorms l totally forgot.
Surprised marine layer this morning but burned off b4 lunch we reached a high of 25c in the central valley desert today.
Taken from Agassiz this afternoon looking at the north side of Cheam which is not visible from Chilliwack proper.IMG_20250830_163556478.jpg
Which reminds me I want to hike to the top of that mountain someday.
It's called clown range for a reason.
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Re: August 2025 Forecasts and Discussion

Post by AbbyJr »

Rubus_Leucodermis wrote: Sat Aug 30, 2025 7:06 pm The models have been moderating and backing away from extreme heat in the last 24 hours. At this point, a top tier torch is looking less and less likely.
I'm still thinking it will be warmer at the surface than currently modelled if those 24-25C 850's verify. Low 30's seems reasonable. :think: :sick: :wave:

Maps are valid for Wednesday, September 3rd at 5:00PM.

ecmwf-deterministic-vancouverski-t850-6944000.png
ecmwf-deterministic-vancouverski-t850_anom_stream-6944000.png
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Re: August 2025 Forecasts and Discussion

Post by HarrisonSasquatchWx »

stuffradio wrote: Sat Aug 30, 2025 10:48 pm Apart from getting a final walk through, the Stuffradio family has moved to the pond
:clap: :thumbup: Welcome to the greatest place on earth Stuffers and family. :wtf: hopefully this winter delivers more then just Annis downsloping winds and moisture shutting off before the cold air arrives. :o
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Re: August 2025 Forecasts and Discussion

Post by Glacier »

Yesterday's rain was nice.

Wettest places in BC yesterday:

1) Puntzi Mountain = 8.8 mm
2) Tatlayoko Lake = 2.3 mm
3) Lytton = 1.2 mm
4) Port Hardy = 0.5 mm
5) Fanny Island & Bonilla Island = 0.4 mm
6) Everyone else =0.0 mm

Also, Hottest place in Canada = Fort Smith, NWT = 35.3 C!
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Re: August 2025 Forecasts and Discussion

Post by HarrisonSasquatchWx »

Glacier wrote: Sun Aug 31, 2025 5:55 am Yesterday's rain was nice.

Wettest places in BC yesterday:

1) Puntzi Mountain = 8.8 mm
2) Tatlayoko Lake = 2.3 mm
3) Lytton = 1.2 mm
4) Port Hardy = 0.5 mm
5) Fanny Island & Bonilla Island = 0.4 mm
6) Everyone else =0.0 mm

Also, Hottest place in Canada = Fort Smith, NWT = 35.3 C!
Glace it's too early go back to bed :o :wtf: :wave: l see said the blind man as the cripple got up and walked away. A.I. Canada has some Tstorms in the forecast for the central valley desert this afternoon and evening hoping l see something out here in Harrison. Definitely l was in the everyone else category Glace it's currently 20c @ the pond and new neighbor of the boss Stuffaroni and family. :thumbup: save me some Chilliwack sweet corn plz. :D
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