July 6, 2020

Valley Cloud today

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

    Forecast Issued 4:00 PM PDT Monday 06 July 2020 - Monday night: Mainly cloudy. 30 percent chance of showers near Gold River. Low 12. Tuesday: Mainly cloudy with 30 percent chance of showers. High 20. UV index 6 or high. Tuesday night: Mainly cloudy. Low 11. Wednesday: A mix of sun and cloud. High 22. Wednesday night: Cloudy with 70 percent chance of rain. Low 12. Thursday: Cloudy with 70 percent chance of rain. High 17. Thursday night: Cloudy periods with 30 percent chance of showers. Low 10. Friday: A mix of sun and cloud with 40 percent chance of showers. High 19. Friday night: Cloudy with 60 percent chance of showers. Low 13. Saturday: Cloudy with 60 percent chance of showers. High 18. Saturday night: Cloudy. Low 13. Sunday: Cloudy with 60 percent chance of showers. High 18.

The forecast today has a term I’ve never seen used:

Valley cloud. Fog patches dissipating this afternoon. High plus 5 except plus 1 areas of low cloud

In other words, the fog may lift but won’t clear completely everywhere and so it will stay cold in those areas. Great day for a trip over to the East Coast!
Update: I’ve modified the Freezing Level calculation a bit so that it only calculates it if the Cloud Base is above 900m(3000ft). Below that usually means it’s foggy and/or inversion effect and the calculation is no good anyway. Hopefully that doesn’t completely wipe out it’s usefulness, as we all know how often we have fog or Valley Cloud during the winter. 🙂

Update: I’ve just installed the “hardened” temp/humid sensor that I received from Davis. It’ll take it a little while to acclimatize completely but it seems to be operating fine, hopefully this is the last time I have to go up on the roof this winter.