Sun. Aug 19th, 2018

Counting down to Spring Equinox – A cool and variable week – Zero South Island Snowpack

  • Vancouver Island Inland Sections Forecast - SPECIAL AIR QUALITY STATEMENT IN EFFECT
    Issued: 3:34 PM PDT Saturday 18 August 2018

    Forecast Issued 4:00 PM PDT Saturday 18 August 2018 - Saturday night: Clear. Local smoke. Low 11. Sunday: Sunny. Local smoke. High 33. Humidex 36. UV index 7 or high. Sunday night: Clear. Local smoke. Low 12. Monday: Sunny. High 34. Monday night: Clear. Low 12. Tuesday: Sunny. High 34. Tuesday night: Clear. Low 13. Wednesday: Sunny. High 24. Wednesday night: Cloudy periods. Low 14. Thursday: Cloudy with 60 percent chance of showers. High 21. Thursday night: Cloudy periods. Low 13. Friday: A mix of sun and cloud. High 20.

  • Current Conditions
    Temperature
    22.4° C
    -1.7 ° C/hr
    Barometer
    101.82 kPa
    0.0
    Wind
    N/A 0.0 km/h
    gusting 3.2 km/h
    Humidity
    55 %
    Rain Rate
    0.0 mm/hr
    Wind Chill
    22.4° C
    Heat Index
    22.4° C
    Dewpoint
    12.9° C
    UV
    0.0
    Solar
    0 W/m2
    Last Updated: 20:35:00 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
    05:39
    Moon Phase
    First quarter (59% full)
    Civil Set
    21:05
    Day Length
    13:22:59
    Day High
    29.8° C @ 15:23 Tdy.
    Day Low
    11.7° C @ 06:30 Tdy.
    Day High Rain Rate
    0.0mm/hr00:00
    Day High Barometer
    102.42 kPa @ 07:58 Tdy.
    Day Low Barometer
    101.79 kPa @ 19:44 Tdy.
    Day Low Windchill
    11.7° C @ 06:30 Tdy.
    Day High Heat Index
    29.8° C @ 15:23 Tdy.
    Day High Wind Gust
    S 16.3km/h @ 16:05 Tdy.
    Day High Solar Radiation
    1220W/m2 @ 13:26 Tdy.
    Day High UV Index
    7.8 @ 13:25 Tdy.

For the first time in a while we have what could actually be described as a normal span of spring (even though it’s technically still not spring) weather on tap.

In case you’re wondering, the first day of Spring is Friday, March 20th at 3:46PM (click for a countdown!).

We have a couple systems coming our way this week.  You can see them below:

pcp3.33.0000
This image is for Tuesday 2AM showing the first system approaching for Tuesday afternoon.

 

 

Showers from the first system should start around 2PM on Tuesday.

pcp3.45.0000

Showers will continue through early Wednesday morning.  There will be a bit of a break on Wednesday before a more intense front sweeps in Wednesday night and early Thursday morning.

pcp3.78.0000

 

pcp3.84.0000-2

Precipitation totals from the Tuesday showers should be negligeable.

Totals from the Thursday morning event should be significant if these model runs validate.  Right now we could have totals over 2 days, Wednesday 5PM to Friday 5PM of up to 60mm.

wa_pcp48.120.0000-2
48hours between Wednesday/Friday afternoon. Green=30mm pink=60mm.

 

That is not enough for warning criteria, but it will feel like a lot because we’ve had so little over the past few months.

No Snow for the mountains

It will only feel cooler because we have been so far above normal over the past few weeks.  It will actually be close to seasonal temperatures (max 10ºC) and as such, no snow is forecast to fall in the high or low elevations on the South Island.

The snowpack monitor at Jump Creek for the South Island remains at zero.

spd3b23p-6

The graph shows the minimum that was recorded (it does not state the year but the record goes back to 1995).  While it is still possible that we may get a very late snowfall to at least put a little bit of snow into the reserves, with the continuing very warm sea surface temperatures off our coast, and the continued forecasts for above normal temperatures and dry conditions, I think we have a greater than 50% chance of seeing zero snowpack for this winter season at the South Island station.

That would obviously be a record, and it would present very serious challenges to our neighbours on the South and East Coast of the Island if, as predicted, we have a warm and dry summer as well.