Fri. Sep 20th, 2019

Couple wet days coming especially in mountains. Beware near streams.

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

    Forecast Issued 11:00 AM PDT Friday 20 September 2019 - Friday: A mix of sun and cloud. High 22. UV index 6 or high. Friday night: Partly cloudy. Fog patches developing before morning. Low 12. Saturday: Becoming cloudy in the morning. Rain beginning in the afternoon. Fog patches dissipating in the morning. High 19. UV index 2 or low. Saturday night: Rain. Low 14. Sunday: Showers. High 18. Sunday night: Clear. Low 7. Monday: Periods of rain. High 14. Monday night: Periods of rain. Low 11. Tuesday: Periods of rain. High 21. Tuesday night: Cloudy periods. Low 10. Wednesday: Cloudy with 60 percent chance of showers. High 16. Wednesday night: Cloudy periods. Low 9. Thursday: Cloudy with 60 percent chance of showers. High 16.

  • Current Conditions
    Temperature
    21.4° C
    1.4 ° C/hr
    Barometer
    101.86 kPa
    0.0
    Wind
    N/A 0 km/h
    gusting 2 km/h
    Humidity
    58 %
    Rain Rate
    0.0 mm/hr
    Wind Chill
    21.4° C
    Heat Index
    21.4° C
    Dewpoint
    12.8° C
    UV
    4.5
    Solar
    674 W/m2
    Last Updated: 13:10:00 PDT
    Click to Refresh or See All Conditions
  • Today's Almanac
    Rain since Midnight
    0.0 mm
    Continuous Rainfall (< 24hr gap)
    No Qualifying Rainfall mm
    Civil Rise
    06:29
    Moon Phase
    Last quarter (63% full)
    Civil Set
    19:54
    Day Length
    13:12:35
    Day High
    21.4° C @ 11:42 Tdy.
    Day Low
    13.7° C @ 07:43 Tdy.
    Day High Rain Rate
    0.0mm/hr00:00
    Day High Barometer
    101.87 kPa @ 12:28 Tdy.
    Day Low Barometer
    101.71 kPa @ 02:58 Tdy.
    Day Low Windchill
    13.7° C @ 07:43 Tdy.
    Day High Heat Index
    21.4° C @ 11:42 Tdy.
    Day High Wind Gust
    S 6km/h @ 10:35 Tdy.
    Day High Solar Radiation
    861W/m2 @ 11:26 Tdy.
    Day High UV Index
    4.7 @ 12:41 Tdy.

I will be busy at the City all day tomorrow so wanted to get this out after the night model run and before tomorrow morning.

The UWash model is pretty firm that we will get precipitation starting between 5AM and 8AM tomorrow.  It will be moving fairly quickly as you can see by the series of images.

3AM-5AM

wa_pcp3.12.0000

By 8AM the rain has moved well onshore but totals in Port Alberni are only up to 1mm.

wa_pcp3.15.0000

The model actually has us in a rain shadow for the rest of Thursday and overnight.  There might be some wind in the evening too. It doesn’t have rain returning to most of the Alberni Valley until between 8AM-11AM on Friday.

wa_pcp3.42.0000-2

The total precipitation for the two days is only 8mm.  But notice in the chart below that the West Coast mountains are predicted to get between 32-64mm. (pink) between Thursday and Saturday mornings.

wa_pcp48.60.0000-2

This could lead to high streamflows in places like the Somass, Taylor and Kennedy and other rivers and streams between the Inland sections and West Coast of Vancouver Island.  Please be cautious if you are near any streams.

I will end the post there.  There is some pretty interesting weather being predicted for Saturday that at this point looks like it will mainly affect the I5 corridor and Lower Mainland but we’ll take a closer look at that on Friday.

Have a great Thursday!  The greens in the garden will love this rain.