Regular updates are back! Thunder in the Valley Forecast! Good Saturday, Iffy Sunday!

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

    Forecast Issued 4:00 PM PDT Saturday 21 July 2018 - Saturday night: Clear. Low 11. Sunday: Sunny. High 32. Humidex 34. UV index 8 or very high. Sunday night: Clear. Low 13. Monday: Sunny. High 34. Monday night: Clear. Low 14. Tuesday: Sunny. High 33. Tuesday night: Clear. Low 14. Wednesday: Sunny. High 32. Wednesday night: Clear. Low 14. Thursday: Sunny. High 28. Thursday night: Clear. Low 14. Friday: Sunny. High 27.

  • Current Conditions
    Temperature
    19.3° C
    -1.9 ° C/hr
    Barometer
    102.22 kPa
    0.0
    Wind
    N/A 0.0 km/h
    gusting 0.0 km/h
    Humidity
    63 %
    Rain Rate
    0.0 mm/hr
    Wind Chill
    19.3° C
    Heat Index
    19.3° C
    Dewpoint
    12.1° C
    UV
    0.0
    Solar
    0 W/m2
    Last Updated: 22:10:00 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
    04:56
    Moon Phase
    First quarter (74% full)
    Civil Set
    21:54
    Day Length
    13:25:39
    Day High
    27.3° C @ 15:19 Tdy.
    Day Low
    12.3° C @ 06:21 Tdy.
    Day High Rain Rate
    0.0mm/hr00:00
    Day High Barometer
    102.22 kPa @ 21:59 Tdy.
    Day Low Barometer
    101.95 kPa @ 03:14 Tdy.
    Day Low Windchill
    12.3° C @ 06:21 Tdy.
    Day High Heat Index
    27.3° C @ 15:19 Tdy.
    Day High Wind Gust
    S 17.4km/h @ 18:55 Tdy.
    Day High Solar Radiation
    1062W/m2 @ 13:29 Tdy.
    Day High UV Index
    7.1 @ 13:26 Tdy.

While I got home from vacation last Tuesday, this is the first day I am back on the bus ? to work! So that means I have my normal time slot for Alberniweather blogging back! 🙂

For better or worse, the weather has not changed much since last week mainly due to the strong ridge of high pressure keeping it clear, and the smoke keeping temperatures down quite a few degrees below what they otherwise would have been depending where you were in the Valley and how much smoke there was.

That said, after a few more days of sun and smoke, change is coming, and it is bad news for Thunder in the Valley last day and the Five Acre Shaker late Saturday and early Sunday.

Saturday Clouds but should stay Dry

The change in weather will actually begin Friday night and Saturday morning as prevailing northwesterly winds supporting the ridge of high pressure switch over to SouthWesterly.

You can see that switch happening off the coast on the Friday 8PM map below.

We should start to feel that change in wind pattern by around 11AM Saturday morning as a front hits Haida Gwaii but no precipitation on the Island yet.

The front will gradually impact the rest of the Central and South Coast of BC through Saturday evening but we should not feel anything in Port Alberni on Saturday, so that is good news for Thunder in the Valley.  The picture below is for 5-8PM Saturday. The rain has come to northern Vancouver Island but is still well away from the Central Island. Lets hope that that timing holds.

The challenge will come on Sunday.  Here is the 8AM-11AM forecast:

We should expect up to 8mm of rain in Port Alberni. Which would be more than enough to stop the races and put a damper on the final day of the Five Acre Shaker at McLean Mill.

The rain is supposed to stop by 11AM or 12PM on Sunday:

But it won’t be terribly warm so there will be a need for active drying of the Thunder in the Valley track in order to get racing going.

The temperature forecast for that same 11AM-2PM period is between 20-22ºC and partly cloudy.