Updated 11AM Saturday — More details for Thunder during Thunder in the Valley

  • Vancouver Island Inland Sections Forecast - No watches or warnings in effect.

    Forecast Issued 4:00 PM PDT Sunday 20 May 2018 - Sunday night: Partly cloudy. Fog patches developing overnight. Low 9. Monday: Clearing in the morning. Fog patches dissipating in the morning. High 24. UV index 7 or high. Monday night: Clear. Low 9. Tuesday: Sunny. High 28. Tuesday night: Clear. Low 12. Wednesday: Sunny. High 29. Wednesday night: Clear. Low 11. Thursday: A mix of sun and cloud. High 27. Thursday night: Cloudy periods. Low 11. Friday: Sunny. High 22. Friday night: Clear. Low 11. Saturday: Sunny. High 23.

  • Current Conditions
    17.1° C
    0.1 ° C/hr
    101.69 kPa
    SSW 16.9 km/h
    gusting 27.4 km/h
    66 %
    Rain Rate
    0.0 mm/hr
    Wind Chill
    17.1° C
    Heat Index
    17.1° C
    10.7° C
    365 W/m2
    Last Updated: 18:20:00 PDT
    Click to Refresh or See All Conditions
  • Day Almanac
    Day's Rain
    0.0 mm
    Day ET
    0.0 mm mm
    Rain Storm
    NotAvailable mm
    Civil Rise
    Moon Phase
    Waxing crescent (38% full)
    Civil Set
    Day Length
    Day High
    18.6° C @ 15:56 Tdy.
    Day Low
    12.5° C @ 05:28 Tdy.
    Day High Rain Rate
    Day High Barometer
    101.7 kPa @ 13:59 Tdy.
    Day Low Barometer
    101.43 kPa @ 00:00 Tdy.
    Day Low Windchill
    12.5° C @ 05:28 Tdy.
    Day High Heat Index
    18.6° C @ 15:56 Tdy.
    Day High Wind Gust
    S 18.3km/h @ 13:25 Tdy.
    Day High Solar Radiation
    1283W/m2 @ 15:26 Tdy.
    Day High UV Index
    7.6 @ 14:05 Tdy.

Update Saturday 11AM

The morning model has the threat of rain drying up by the 3-4PM hour


The threat returns at about noon on Sunday through 3PM.

It won’t be much but again probably just enough to halt the races.

Update Saturday 7AM

Based on the latest model run from friday night, the most likely chance of rain on Saturday will be between 1-3PM and then possibly some in the 6PM hour.

On Sunday most likely is 3-4PM.

In both cases rain is light and patchy.

Happy racing!



Now that it is Friday we have a full hour by hour look available for the whole weekend.

The dry and warm forecast should still hold, so don’t worry too much. However, it does look like there is going to be chances of showers particulatly on Friday and Sunday afternoon.  Clouds will be variable all weekend with clearing in the morning and afternoon clouds taking over before clearing again at night except Saturday night which will cloud over before morning.

Here is the hour by hour outlook for when showers may occur.  All other times not mentioned shown as rain-free within the City of Port Alberni.


Thunderstorm activity will begin on the North end of the central Island betweem 3-4PM and might slip south a little into Port Alberni.


By 6PM the rain looks like it has reach Port Alberni.


The lightning potential looks confined to northern sections nearer Courtenay and Gold River.


The strongest showers of the weekend occur between 6-7PM and should end quickly before 8PM.


There is a slight chance of thunderstorms on Saturday but no showers in our immediate area.


The chance of thunderstorms shift to the south as you can see below. And they will occur earlier in the day between about 10AM and 2PM.


Rain is more widespread to the south but Port Alberni is again on the periphery and so should not see a lot of showers, maybe some drizzle start at betweem 12-1PM and then stop.


Slight chance of showes again betweem 3-4PM.


And then a final bit betweem 4-5PM


In all cases showers should be weak for the most part but if the thunderstorms creep a little closer we could have a brief downpour.