Nicks Weather

12°C

South Port Alberni, BC, Canada

Updated: 31/12/1969 17:15

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Yellow Warning - Rainfall

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5:01 a.m. PDT Tuesday 17 March 2026

Impact Level: Moderate

Forecast Confidence: High

Prolonged Atmospheric River Event

Where:
- Northern sections of Inland Vancouver Island including Gold River.

When: Now until Wednesday morning.

What: Total rainfall amounts of 100 to 150 mm.

Impacts:
-Prolonged heavy rain on snow combined with mountain snow melt could lead to very enhanced responses in river systems and potential for flooding.
-Extensive water pooling on roads and washouts may occur.
-Enhanced risk of landslides due to saturation of landscapes.

Remarks:
An atmospheric river will remain over the South Coast of B.C. until Wednesday bringing prolonged periods of heavy rain. With freezing levels near 2000 to 3000 metres, snowmelt from higher elevations may increase the impacts associated with this rainfall event. The heaviest rainfall is expected tonight. The rain will ease on Wednesday morning.

Total rainfall amounts will vary across the region, but between 100 to 150 mm can be expected over northern inland regions of Vancouver Island by Wednesday morning. Southern sections, including Port Alberni and Lake Cowichan, may receive near 50 to 70 mm of rain.

Water will likely pool on roads and in low-lying areas. Some travel delays are possible. Landslides may occur in vulnerable areas such as steep slopes, deforested areas or recent burn scars. Fast-moving and rapidly rising water can sweep vehicles away and damage infrastructure.

Watch for washouts near rivers, creeks and culverts.

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.

In effect for:

Inland Vancouver Island

Observed at: Port Alberni Date: 5:00 PM PDT Tuesday 17 March 2026
Temp.: 12 °C Wind: NNE 3 km/h Humidity: 92 % Dew point: 11 °C Pressure: 101.4 kPa Tendency: 0.05 kPa Visibility: km	Sunrise: 7:29 Sunset: 19:27 Normals: Max 11°C Min 0°C

Extended Forecast - Environment Canada
	Wed, 18 Mar Showers Max: 12°C	Thu, 19 Mar Rain Max: 12°C	Fri, 20 Mar Showers Max: 13°C	Sat, 21 Mar Sunny Max: 8°C	Sun, 22 Mar Chance of showers Max: 8°C	Mon, 23 Mar A mix of sun and cloud Max: 10°C
Tonight Rain at times heavy Min: 7°C	Night Showers Min: 8°C	Night Rain Min: 9°C	Night Cloudy Min: 2°C	Night Chance of showers Min: 2°C	Night Chance of showers Min: 1°C

Forecast

Port Alberni, BC (Issued: 4:00 PM PDT Tuesday 17 March 2026)

Tonight: Rain at times heavy. Amount 30 to 40 mm except 10 mm near Port Alberni. Wind south 20 km/h gusting to 40 becoming light this evening. Low 7.
Wed, 18 Mar: Showers. Amount 5 to 10 mm. Wind becoming south 20 km/h gusting to 40 near noon. High 12. UV index 2 or low.
Night: Showers. Amount 15 to 25 mm except 5 mm near Port Alberni. Low 8.
Thu, 19 Mar: Rain. High 12.
Night: Rain. Low 9.
Fri, 20 Mar: Showers. High 13.
Night: Clearing. Low plus 2.
Sat, 21 Mar: Sunny. High 8.
Night: Cloudy periods with 30 percent chance of showers. Low plus 2.
Sun, 22 Mar: Cloudy with 60 percent chance of showers. High 8.
Night: Cloudy with 60 percent chance of showers. Low plus 1.
Mon, 23 Mar: A mix of sun and cloud. High 10.

24 Hour Forecast - Port Alberni, BC

Date/Time	Temp. (°C)	Weather Conditions	LOP †	Wind (km/h)
17 March 2026
6 PM	11	Rain at times heavy	100	S 20 gust 40
7 PM	11	Rain at times heavy	100	S 20 gust 40
8 PM	10	Rain at times heavy	100	S 15
9 PM	10	Rain at times heavy	100	S 15
10 PM	9	Rain at times heavy	100	S 15
11 PM	9	Rain at times heavy	100	S 15
18 March 2026
12 AM	9	Rain at times heavy	100	S 15
1 AM	8	Rain at times heavy	100	S 15
2 AM	8	Rain at times heavy	100	S 15
3 AM	8	Rain at times heavy	100	S 15
4 AM	8	Rain at times heavy	100	S 15
5 AM	8	Rain at times heavy	100	S 15
6 AM	8	Showers	100	S 15
7 AM	7	Showers	100	S 15
8 AM	7	Showers	100	S 15
9 AM	8	Showers	100	S 15
10 AM	10	Showers	100	S 15
11 AM	11	Showers	100	S 15
12 PM	11	Showers	100	S 20 gust 40
1 PM	12	Showers	100	S 20 gust 40
2 PM	12	Showers	100	S 20 gust 40
3 PM	12	Showers	100	S 20 gust 40
4 PM	11	Showers	100	S 20 gust 40
5 PM	11	Showers	100	S 10

† 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