Boulder Mountain - Posby Lake - Chinook Cove

-3°C

Barriere, BC, Canada

Updated: 18/12/2025 01:35

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Coquihalla Highway - Hope to Merritt
Snowfall Warning

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8:30 p.m. PST Wednesday 17 December 2025

Snowfall Warning in effect for:

Coquihalla Highway - Hope to Merritt

A long period of snowfall with total amounts of 30 to 40 cm is expected.

When:
Beginning Thursday afternoon followed by a brief respite overnight Thursday and another round of precipitation on Friday.

Where:
- Coquihalla Highway (Near Coquihalla Summit)

Additional information:
As another frontal system approaches the B.C. coast, we expect to see 10 - 20 cm of snowfall accumulation for the Coquihalla Highway on Thursday. Heaviest snowfall will occur in the afternoon and evening hours.

A low pressure system then makes its way through the B.C. interior on Friday. In the wake of this low pressure system, the airmass becomes unstable and the Coquihalla will receive another 10 -20 cm on Friday. This snowfall accumulation will be highly variable due to the convective nature of the atmosphere. Total snowfall accumulations will be adjusted as Friday draws near.

Travel will likely be challenging. Visibility will likely be reduced at times. Road closures are possible.

Weather in the mountains can change suddenly resulting in hazardous driving conditions.

Prepare for quickly changing and deteriorating travel conditions. The site https://shiftintowinter.ca/ reminds drivers to know before you go. Adjust to winter driving behaviour and use winter tires and chains.

Road conditions are available at https://www.drivebc.ca/.

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.

For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.

Observed at: Kamloops Airport Date: 1:00 AM PST Thursday 18 December 2025
Mostly Cloudy	Temp.: 5 °C Wind: ENE 19 gust 30 km/h Humidity: 53 % Dew point: -4 °C Pressure: 101.1 kPa Tendency: 0.18 kPa Visibility: 64 km	Sunrise: 7:59 Sunset: 15:57 Normals: Max 0°C Min -7°C

Extended Forecast - Environment Canada
	Thu, 18 Dec Chance of flurries or rain showers Max: 7°C	Fri, 19 Dec A mix of sun and cloud Max: 3°C	Sat, 20 Dec A mix of sun and cloud Max: 1°C	Sun, 21 Dec Chance of showers Max: 2°C	Mon, 22 Dec Cloudy Max: -1°C	Tue, 23 Dec Cloudy Max: 1°C
Tonight Chance of flurries Min: 2°C	Night A few showers Min: -1°C	Night Cloudy periods Min: -4°C	Night Cloudy periods Min: -1°C	Night Chance of flurries Min: -3°C	Night Cloudy Min: -3°C

Forecast

Kamloops, BC (Issued: 4:00 PM PST Wednesday 17 December 2025)

Tonight: A few clouds. Increasing cloudiness this evening then 30 percent chance of flurries before morning. Wind southwest 20 km/h gusting to 40 becoming light early this evening. Wind becoming east 20 before morning. Low plus 2.
Thu, 18 Dec: Cloudy with 30 percent chance of flurries in the morning then 30 percent chance of rain showers late in the morning and early afternoon. A few rain showers beginning in the afternoon. Snow level rising to 900 metres in the afternoon. Wind east 20 km/h gusting to 40. High 7.
Night: A few showers ending near midnight then clearing. Snow level 900 metres. Wind east 20 km/h gusting to 40 becoming southwest 40 gusting to 60 in the evening then diminishing to 20 gusting to 40 after midnight. Low minus 1.
Fri, 19 Dec: A mix of sun and cloud. High plus 3.
Night: Cloudy periods. Low minus 4.
Sat, 20 Dec: A mix of sun and cloud. High plus 1.
Night: Cloudy periods. Low minus 1.
Sun, 21 Dec: A mix of sun and cloud with 30 percent chance of showers. High plus 2.
Night: Cloudy with 30 percent chance of flurries. Low minus 3.
Mon, 22 Dec: Cloudy. High minus 1.
Night: Cloudy. Low minus 3.
Tue, 23 Dec: Cloudy. High plus 1.

24 Hour Forecast - Kamloops, BC

Date/Time	Temp. (°C)	Weather Conditions	LOP †	Wind (km/h)
18 December 2025
2 AM	2	Cloudy	0	SE 15
3 AM	2	Cloudy	0	SE 15
4 AM	2	Chance of flurries	30	E 20
5 AM	2	Chance of flurries	30	E 20
6 AM	2	Chance of flurries	30	E 20
7 AM	2	Chance of flurries	30	E 20
8 AM	2	Chance of flurries	30	E 20
9 AM	3	Chance of flurries	30	E 20
10 AM	3	Chance of showers	30	E 20 gust 40
11 AM	4	Chance of showers	30	E 20 gust 40
12 PM	6	Chance of showers	30	E 20 gust 40
1 PM	7	Chance of showers	30	E 20 gust 40
2 PM	7	A few showers	80	E 20 gust 40
3 PM	6	A few showers	80	E 20 gust 40
4 PM	6	A few showers	80	E 20 gust 40
5 PM	6	A few showers	80	E 20 gust 40
6 PM	6	A few showers	80	E 20 gust 40
7 PM	6	A few showers	80	E 20 gust 40
8 PM	6	A few showers	80	SW 40 gust 60
9 PM	5	A few showers	80	SW 40 gust 60
10 PM	5	A few showers	80	SW 40 gust 60
11 PM	4	Cloudy	20	SW 40 gust 60
19 December 2025
12 AM	2	Cloudy	20	SW 40 gust 60
1 AM	1	Cloudy	20	SW 20 gust 40

† 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