August 2025 Forecasts and Discussion

[Roberts Creeker]

Don't often see a Rain Warning in August!

[HarrisonSasquatchWx]

Don't often see a Rain Warning in August!

Run of the mill rainfall for the central valley desert.

[HarrisonSasquatchWx]

Ah, that's too bad and so unlikely that it could happen to you two years in a row.

We cancelled our weekend at Cultus as well. Tent camping in this type of rain

Ya sorry to hear all you tent camper enthusiasts hopefully some sun will appear next week for your camping enjoyment.

[AbbyJr]

Updated modelled 24hr rainfall totals from 12:00AM Friday to 12:00AM Saturday.

ecmwf-deterministic-vancouverski-precip_24hr_mm-5327600.png

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[Typeing3]

Updated modelled 24hr rainfall totals from 12:00AM Friday to 12:00AM Saturday.


ecmwf-deterministic-vancouverski-precip_24hr_mm-5327600.png

rgem-all-vancouverski-precip_24hr_mm-5327600.png

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Those totals taken at face value would be amongst the top 10 wettest August days in recorded history for many across the Lower Mainland.

[Canada Goose]

Those totals taken at face value would be amongst the top 10 wettest August days in recorded history for many across the Lower Mainland.

For YVR.

Capture d’écran 2025-08-14 à 13.11.32.jpg

[HarrisonSasquatchWx]

For YVR.


Capture d’écran 2025-08-14 à 13.11.32.jpg

Unfortunately Mr. G these totals are skewed for the lower mainland given its YVR.

[HarrisonSasquatchWx]

Don't often see a Rain Warning in August!

Mirage perhaps Ms. Raining goat's and chickens Creek.

[AbbyJr]

Don't often see a Rain Warning in August!

The rainfall warning has just been extended to Abbotsford and the Western Fraser Valley regions.

3:25 PM PDT Thursday 14 August 2025

Rainfall Warning in effect for:
Fraser Valley - west including Abbotsford
Rain, at times heavy, is expected.

What:
50 mm of rain, locally in excess of 80 mm over higher terrain.

When:
Friday and Friday night.

Hazards:
- Poor visibility in heavy rain
- Water pooling on roadways with an increased risk of hydroplaning
- Sudden rises in water levels in creeks and rivers

Where:
Metro Vancouver - North Shore including West Vancouver and North Vancouver, Metro Vancouver - Northeast including Coquitlam and Maple Ridge, Fraser Valley - west including Abbotsford, Squamish, Bowen Island, Gibsons.

Additional information:
An unseasonably moisture-laden frontal system will cross the B.C. south coast on Friday bringing heavy rain. The warm front arrives Friday morning with rain and strong southerly winds. The cold front arrives Friday afternoon and will bring the heaviest rainfall rates during the afternoon commute.

The rain will end late evening on the Sunshine Coast and after midnight across eastern Metro Vancouver and Fraser Valley.

Recreationalists are advised to be aware of the potential for sudden rises in river and creek levels in response to the heavy rain over the mountains. Heavy rain during the afternoon commute will result in poor visibility and an increased risk of hydroplaning.

Heavy downpours can cause flash floods and water pooling on roads.

If visibility is reduced while driving, turn on your lights and maintain a safe following distance.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or post reports on X using #BCStorm.

[AbbyJr]

Here's the updated 24hr and 48hr rainfall totals for Friday from the 18Z Euro. This is looking like a substantial storm by summer standards.

Note: The 24hr map is from 12:00AM Thursday to 12:00AM Saturday while the 48hr map is from 12:00AM Thursday to 12:00PM Saturday.

ecmwf-deterministic-vancouverski-precip_24hr_mm-5327600.png

ecmwf-deterministic-vancouverski-precip_48hr_mm-5370800.png

[Typeing3]

Here's the updated 24hr and 48hr rainfall totals for Friday from the 18Z Euro. This is looking like a substantial storm by summer standards.

Note: The 24hr map is from 12:00AM Thursday to 12:00AM Saturday while the 48hr map is from 12:00AM Thursday to 12:00PM Saturday.


ecmwf-deterministic-vancouverski-precip_24hr_mm-5327600.png

ecmwf-deterministic-vancouverski-precip_48hr_mm-5370800.png

Wow. Very significant rain storm by summer standards. Definitely top tier stuff if it verifies.

[HarrisonSasquatchWx]

Wow. Very significant rain storm by summer standards. Definitely top tier stuff if it verifies.

This will be a summer travesty and erase what has been a delightful summer.

[Rubus_Leucodermis]

Wow. Very significant rain storm by summer standards. Definitely top tier stuff if it verifies.

We shall see but it may very well spell the end of the fire season. Or at least the beginning of the end.

And 50+ mm of rain should get mushroom season going.

[stuffradio]

We shall see but it may very well spell the end of the fire season. Or at least the beginning of the end.

And 50+ mm of rain should get mushroom season going.

That would be great.

[Roberts Creeker]

Drizzling here, has been on and off since about 4:30 when it started with just a few drops, it's pretty steady now and everything is wet.