Special Weather Statement
1:23 p.m. PDT Friday 28 August 2026

Potential for locally heavy rainfall and thunderstorms

What: Thunderstorms could enhance local rainfall amounts.

When: Late this evening to Saturday morning.

Where: Fraser Canyon, South Thompson and Nicola.

Additional information:
An upper level low will track across the South Coast and southwestern interior today and tonight. Showers and thunderstorms associated with this system could produce locally heavy rainfall, with rainfall rates potentially high enough to cause localized flash flooding, especially in areas with slow moving showers.

Current weather model guidance suggests that locally significant rainfall amounts are possible. However, there remains uncertainty regarding the exact location and magnitude of the heaviest rainfall, as convective showers and thunderstorms can be highly localized.

Enhanced risk of landslides in vulnerable areas, particularly those affected by recent wildfires (burn scars). The combination of heavy rainfall and potentially unstable soils could trigger landslides or debris flows, posing potential hazards to public safety, infrastructure and natural landscapes.

The anticipated high precipitation rates over a short duration could lead to water pooling in areas with poor drainage, exacerbating localized flooding concerns. Communities with historically lower drainage capacities should be particularly vigilant.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to [email protected] or post reports on social media using #BCStorm.

In effect for:
  • South Thompson

Sky Webcam
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Updated: @ 28/08/2026 21:55 - next update at 22:00  
Summary / Temperature Wind Rain Outlook
Overcast Overcast
Currently: 15.7, Max: 21.2, Min: 8.0 15.7°C
Warmer 0.2°C than last hour.

Cool

Feels like: 16°C

24-hr difference
0.7°CWarmer 0.7°C than yesterday at this time.
  Today Yesterday
High: 21.2°C
14:28
25.2°C
13:31
Low: 8°C
05:56
12.3°C
06:15
 Wind from WNW WNW
1
Gust:
10 km/h
0 Bft - Calm
Today: 10 km/h 21:51
Gust Month: 27 km/h August 01
Rain Today: 0 mm
Rain Rate (/hr): 0 mm
Rain Yesterday: 0 mm
This Month: 2.9 mm
Season Total: 239.1 mm
2 rain days in August.
Sat, 29 Aug
Chance of showers (30%)
Chance of showers
Humidity & Barometer Almanac Moon
Humidity: 53 % Decreased 4.0% since last hour.
Dew Point: 6.2°C Decreased 0.8°C since last hour.
Barometer: 1012.6 hPa Rising 0.8  hPa/hr
Baro Trend: Rising Slowly
Sunrise: 06:08
Sunset: 19:55
Moonset: 06:42
Moonrise: 20:01
Full Moon
Full Moon, Moon at 15 days in cycle
99%
Illuminated
UV Index Forecast UV Index Forecast
29/08/2026
4.5     Medium 
30/08/2026
5.0     Medium 
 EC Weather Forecast  - Outlook: Tonight & Sat, 29 Aug
Tonight
Chance of showers (30%)
Chance of showers

Min: 14°C
EC forecast: Mainly cloudy. 30 percent chance of showers early this evening. A few showers beginning after midnight. Risk of a thunderstorm overnight. Local smoke. Wind southwest 20 km/h gusting to 40 becoming light late this evening. Low 14.
 
Sat, 29 Aug
Chance of showers (30%)
Chance of showers

Max: 20°C
EC forecast: A few showers ending late in the morning then mainly cloudy with 30 percent chance of showers. Risk of a thunderstorm in the morning and afternoon. Local smoke. Local amount 10 to 20 mm. Wind becoming southwest 20 km/h near noon. High 20. UV index 4 or moderate.
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🌲 Canadian Forest Fire Weather Index Obs: 2026-08-28
Fire Weather Index 19.3   High    BC FDR: Moderate
Spread & Buildup ISI: 3.8    BUI: 159.7
Moisture Codes
FFMC 89.1
DMC 111.7
DC 699.5
Noon Observation 18.7 °C   RH 48%   Wind 0.4 km/h   Rain(24h) 0.0 mm

Canadian FWI System (Van Wagner 1987) — computed at noon from station data. Last computed: 2026-08-28T12:10:02. Fire Weather History Page