Valley Cloud today

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

    Forecast Issued 05:00 AM PDT Wednesday 20 June 2018 - Wednesday: A mix of sun and cloud. 30 percent chance of showers late this afternoon with risk of thunderstorms. High 31. Humidex 34. UV index 8 or very high. Wednesday night: Partly cloudy. 30 percent chance of showers this evening with risk of thunderstorms. Low 12. Thursday: A mix of sun and cloud. High 27. Thursday night: Cloudy periods. Low 13. Friday: Cloudy with 60 percent chance of showers. High 23. Friday night: Clear. Low 11. Saturday: Sunny. High 27. Saturday night: Clear. Low 11. Sunday: A mix of sun and cloud with 30 percent chance of showers. High 23. Sunday night: Cloudy periods. Low 12. Monday: A mix of sun and cloud. High 20. Monday night: Cloudy periods. Low 10. Tuesday: A mix of sun and cloud. High 20.

  • Current Conditions
    Temperature
    14.9° C
    0.1 ° C/hr
    Barometer
    101.52 kPa
    0.0
    Wind
    N/A 0.0 km/h
    gusting 0.0 km/h
    Humidity
    91 %
    Rain Rate
    0.0 mm/hr
    Wind Chill
    14.9° C
    Heat Index
    14.9° C
    Dewpoint
    13.5° C
    UV
    0.0
    Solar
    31 W/m2
    Last Updated: 6:20:00 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
    04:28
    Moon Phase
    First quarter (51% full)
    Civil Set
    22:12
    Day Length
    13:20:51
    Day High
    17.4° C @ 00:00 Tdy.
    Day Low
    14.8° C @ 05:28 Tdy.
    Day High Rain Rate
    0.0mm/hr00:00
    Day High Barometer
    101.55 kPa @ 03:58 Tdy.
    Day Low Barometer
    101.51 kPa @ 05:13 Tdy.
    Day Low Windchill
    14.8° C @ 05:28 Tdy.
    Day High Heat Index
    17.4° C @ 00:00 Tdy.
    Day High Wind Gust
    S 0.3km/h @ 00:30 Tdy.
    Day High Solar Radiation
    33W/m2 @ 06:19 Tdy.
    Day High UV Index
    0.0 @ 00:00 Tdy.

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. πŸ™‚

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.

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