Yellow Watch - Severe Thunderstorm
9:45 a.m. PDT Saturday 22 August 2026

Impact Level: Moderate

Forecast Confidence: High


Conditions are favourable for the development of severe thunderstorms that may be capable of producing heavy rain.

When thunder roars, go indoors! Lightning kills and injures Canadians every year.

Heavy rain can cause flash flooding and significant reductions to visibility.

Severe thunderstorm watches are issued when conditions are favourable for the development of thunderstorms capable of producing damaging hail, wind or rain.

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 social media using #BCStorm.

In effect for:
  • Inland Vancouver Island

Observed at: Port Alberni
Date: 12:00 PM PDT Saturday 22 August 2026
Temp.: 20 °C
Wind: ESE 7 km/h
Humidity: 67 %
Dew point: 14 °C
Pressure: 101.7 kPa
Tendency: 0.07 kPa
Visibility: km
Sunrise: 6:21
Sunset: 20:22
Normals:
Max 25°C Min 10°C
 Extended Forecast - Environment Canada
Today
Chance of showers or thunderstorms (60%)
Chance of showers or thunderstorms
Max: 25°C
Sun, 23 Aug
Chance of showers (60%)
Chance of showers
Max: 21°C
Mon, 24 Aug
Sunny
Sunny
Max: 29°C
Tue, 25 Aug
Sunny
Sunny
Max: 30°C
Wed, 26 Aug
Chance of showers (70%)
Chance of showers
Max: 21°C
Thu, 27 Aug
Cloudy
Cloudy
Max: 18°C
Fri, 28 Aug
Cloudy
Cloudy
Max: 19°C
Tonight
Showers
Showers
Min: 15°C
Night
Cloudy periods
Cloudy periods
Min: 14°C
Night
Clear
Clear
Min: 11°C
Night
Chance of showers (40%)
Chance of showers
Min: 16°C
Night
Cloudy
Cloudy
Min: 12°C
Night
Cloudy
Cloudy
Min: 12°C
 

Forecast

Port Alberni, BC (Issued: 11:00 AM PDT Saturday 22 August 2026)

Today
Mainly cloudy with 60 percent chance of showers or thunderstorms and risk of a severe thunderstorm. Wind becoming south 20 km/h gusting to 40 early this afternoon. High 25. Humidex 29. UV index 5 or moderate.
Tonight
Showers with risk of a thunderstorm. Wind south 20 km/h gusting to 40 becoming light this evening. Low 15.
Sun, 23 Aug
Cloudy with 60 percent chance of showers. Becoming a mix of sun and cloud late in the afternoon. High 21. Humidex 25. UV index 3 or moderate.
Night
Cloudy periods. Low 14.
Mon, 24 Aug
Sunny. High 29.
Night
Clear. Low 11.
Tue, 25 Aug
Sunny. High 30.
Night
Cloudy with 40 percent chance of showers. Low 16.
Wed, 26 Aug
Cloudy with 70 percent chance of showers. High 21.
Night
Cloudy. Low 12.
Thu, 27 Aug
Cloudy. High 18.
Night
Cloudy. Low 12.
Fri, 28 Aug
Cloudy. High 19.

24 Hour Forecast - Port Alberni, BC

Date/Time Temp.
(°C)

Weather Conditions

LOP †
Wind
(km/h)
22 August 2026
1 PM 21 Chance of showers or thunderstorms. (60%)  Chance of showers or thunderstorms. 60 S 20 gust 40
2 PM 23 Chance of showers or thunderstorms. (60%)  Chance of showers or thunderstorms. 60 S 20 gust 40
3 PM 24 Chance of showers or thunderstorms. (60%)  Chance of showers or thunderstorms. 60 S 20 gust 40
4 PM 24 Chance of showers or thunderstorms. (60%)  Chance of showers or thunderstorms. 60 S 20 gust 40
5 PM 25 Chance of showers or thunderstorms. (60%)  Chance of showers or thunderstorms. 60 S 20 gust 40
6 PM 23 Chance of showers. Risk of thunderstorms (60%)  Chance of showers. Risk of thunderstorms 60 S 20 gust 40
7 PM 20 Showers. Risk of thunderstorms (100%)  Showers. Risk of thunderstorms 100 S 20 gust 40
8 PM 18 Showers. Risk of thunderstorms (100%)  Showers. Risk of thunderstorms 100 VR 5
9 PM 17 Showers. Risk of thunderstorms (100%)  Showers. Risk of thunderstorms 100 VR 5
10 PM 17 Showers. Risk of thunderstorms (100%)  Showers. Risk of thunderstorms 100 VR 5
11 PM 16 Showers. Risk of thunderstorms (100%)  Showers. Risk of thunderstorms 100 VR 5
23 August 2026
12 AM 16 Showers. Risk of thunderstorms (100%)  Showers. Risk of thunderstorms 100 VR 5
1 AM 17 Showers. Risk of thunderstorms (100%)  Showers. Risk of thunderstorms 100 VR 5
2 AM 17 Showers. Risk of thunderstorms (100%)  Showers. Risk of thunderstorms 100 VR 5
3 AM 16 Showers. Risk of thunderstorms (100%)  Showers. Risk of thunderstorms 100 VR 5
4 AM 16 Showers. Risk of thunderstorms (100%)  Showers. Risk of thunderstorms 100 VR 5
5 AM 15 Showers. Risk of thunderstorms (100%)  Showers. Risk of thunderstorms 100 VR 5
6 AM 15 Chance of showers (60%)  Chance of showers 60 VR 5
7 AM 15 Chance of showers (60%)  Chance of showers 60 VR 5
8 AM 15 Chance of showers (60%)  Chance of showers 60 VR 5
9 AM 16 Chance of showers (60%)  Chance of showers 60 VR 5
10 AM 16 Chance of showers (60%)  Chance of showers 60 VR 5
11 AM 17 Chance of showers (60%)  Chance of showers 60 VR 5
12 PM 18 Chance of showers (60%)  Chance of showers 60 VR 5
 
† Likelihood of Precipitation (LOP) as described in the public forecast as a chance of measurable precipitation for a period of time.
  Nil: 0%
  Low: 40% or below
  Medium: 60% or 70%
  High: Above 70%

Environment Canada