Mon. Jan 20th, 2020

Valley Cloud today

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

    Forecast Issued 4:00 PM PST Monday 20 January 2020 - Monday night: Periods of rain. Amount 10 to 20 mm. Low plus 4. Tuesday: Periods of rain. Amount 10 to 15 mm. Becoming windy in the afternoon. High 6. Tuesday night: Periods of rain. Amount 10 to 15 mm. Windy in the evening. Low plus 3. Wednesday: Rain. High plus 5. Wednesday night: Rain. Low plus 2. Thursday: Rain. High 8. Thursday night: Rain. Low plus 4. Friday: Rain. High 7. Friday night: Rain. Low plus 5. Saturday: Periods of rain. High 8. Saturday night: Cloudy with 60 percent chance of showers. Low plus 3. Sunday: Cloudy with 60 percent chance of showers. High 7.

  • Current Conditions
    Temperature
    5.0° C
    0.1 ° C/hr
    Barometer
    101 kPa
    falling
    Wind
    NW1 km/h
    gusting 5 km/h
    Humidity
    99 %
    Rain Rate
    0.0 mm/hr
    Wind Chill
    NA° C
    Heat Index
    6.2° C
    Dewpoint
    4.8° C
    UV
    0.0
    Solar
    10 W/m2
    Last Updated: 8:30:00 PDT
    Station Reports Delayed
    458 minutes
    Showing Nearest Official Station

    Observed at: Port Alberni 3:00 PM PST Monday 20 January 2020
    Click to Refresh or See All Conditions
  • Today's Almanac
    Rain since Midnight
    15.7 mm
    Continuous Rainfall (< 24hr gap)
    115.1 mm since
    January 16, 2020 00:01
    Civil Rise
    07:28
    Moon Phase
    Waning crescent (18% full)
    Civil Set
    17:32
    Day Length
    12:30:10
    Day High
    8.1° C @ 06:46 Tdy.
    Day Low
    3.2° C @ 01:45 Tdy.
    Day High Rain Rate
    15.2mm/hr @ 03:51 Tdy.
    Day High Barometer
    101.18 kPa @ 00:14 Tdy.
    Day Low Barometer
    100.89 kPa @ 03:29 Tdy.
    Day Low Windchill
    0.2° C @ 03:16 Tdy.
    Day High Heat Index
    8.1° C @ 06:46 Tdy.
    Day High Wind Gust
    S 16km/h @ 06:45 Tdy.
    Day High Solar Radiation
    11W/m2 @ 08:28 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. 🙂

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.