Tue. May 21st, 2019

The rainfall warnings begin…. a timeline of the incoming atmospheric river.

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

    Forecast Issued 11:00 AM PDT Tuesday 21 May 2019 - Tuesday: Mainly sunny. High 20. UV index 7 or high. Tuesday night: Clear. Fog patches developing before morning. Low 8. Wednesday: Sunny. Fog patches dissipating in the morning. High 27. UV index 7 or high. Wednesday night: Clear. Low 8. Thursday: Sunny. High 26. Thursday night: Clear. Low 12. Friday: Sunny. High 23. Friday night: Clear. Low 9. Saturday: Sunny. High 28. Saturday night: Clear. Low 12. Sunday: Sunny. High 25. Sunday night: Clear. Low 12. Monday: Sunny. High 24.

  • Current Conditions
    Temperature
    21.3° C
    1.2 ° C/hr
    Barometer
    100.72 kPa
    0.0
    Wind
    NNW 3.2 km/h
    gusting 8.0 km/h
    Humidity
    53 %
    Rain Rate
    0.0 mm/hr
    Wind Chill
    21.3° C
    Heat Index
    21.3° C
    Dewpoint
    11.3° C
    UV
    6.0
    Solar
    953 W/m2
    Last Updated: 13:30:00 PDT
    Click to Refresh or See All Conditions
  • Day Almanac
    Day's Rain
    0.3 mm
    Day ET
    0.0 mm mm
    Rain Storm
    NotAvailable mm
    Civil Rise
    04:48
    Moon Phase
    Full (90% full)
    Civil Set
    21:44
    Day Length
    13:15:49
    Day High
    21.4° C @ 13:27 Tdy.
    Day Low
    10.4° C @ 06:33 Tdy.
    Day High Rain Rate
    0.0mm/hr00:00
    Day High Barometer
    100.74 kPa @ 11:44 Tdy.
    Day Low Barometer
    100.64 kPa @ 00:00 Tdy.
    Day Low Windchill
    10.4° C @ 06:33 Tdy.
    Day High Heat Index
    21.4° C @ 13:27 Tdy.
    Day High Wind Gust
    S 6.4km/h @ 12:50 Tdy.
    Day High Solar Radiation
    1150W/m2 @ 11:06 Tdy.
    Day High UV Index
    6.4 @ 13:04 Tdy.

In a rare occurence, Environment Canada is issuing rainfall warnings for Inland (Port Alberni, Gold River) Vancouver Island as well as other areas.

Here is the warning text, it also mentions the S word!

Issued at 2018-01-28 00:01 UTC by Environment Canada:
Rainfall warning issued for:
West Vancouver Island, B.C. (081400)
Inland Vancouver Island, B.C. (081500)
Current details:
Rain, at times heavy, is expected.

A moisture-laden frontal system will move across Vancouver Island tonight and Sunday bringing heavy rain.

Rain will begin overnight and intensify during the day on Sunday with rainfall totals near 100 millimetres by Monday morning.

Early on Sunday morning, higher elevations such as the Port Alberni Summit on Highway 4 may see accumulating snow before the warm front move across and snow changes to rain later Sunday morning.

Localized flooding in low-lying areas is possible. Be prepared for possible winter conditions at higher elevations.

Timeline Starts Early Sunday Morning

Rain begins across the Island in the 1-4AM period Sunday morning.  If the temperature stays in the 3-4°C range, expect this to start as sleet or snow at higher elevatoons, or to switch from rain to snow as the precipitation rate picks up and drags down the temperature.

Things intensify in the 7-10AM period on the West Coast.

They intensify further on the West Coast with 30-60mm falling in multiple 3hr periods on Sunday afternoon throuh evening especially in the Kennedy Lake area.

It is less extreme in Port Alberni but we are still expected to get more than enough rain to be quite unpleasant!

The model is predicting up to 60mm in Port Alberni (pink) but up to 120mm in higher regions all by 4AM Monday.

Rain will reach into Monday morning but will taper to showes Monday afternoon and then re-intensify a little Monday night.

Never a dull moment.

Stay dry. Stay away from the rivers as they are expected to rise rapidly especially with the freezing level rising rapidly adding snow melt to the rainfall.