Update: Flood Watch Issued for Stamp/Sproat/Somass system—- Sunday Windstorm – Model picks on Bamfield

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

    Forecast Issued 4:00 PM PDT Thursday 19 July 2018 - Thursday night: Partly cloudy. Windy early this evening. Low 11. Friday: Mainly cloudy. 30 percent chance of showers in the afternoon. High 21. UV index 5 or moderate. Friday night: Partly cloudy. Low 11. Saturday: A mix of sun and cloud. High 27. Saturday night: Clear. Low 11. Sunday: Sunny. High 33. Sunday night: Clear. Low 13. Monday: Sunny. High 35. Monday night: Clear. Low 14. Tuesday: Sunny. High 28. Tuesday night: Clear. Low 14. Wednesday: Sunny. High 27.

  • Current Conditions
    Temperature
    14.8° C
    0.0 ° C/hr
    Barometer
    102 kPa
    0.0
    Wind
    SSW 4.8 km/h
    gusting 9.7 km/h
    Humidity
    80 %
    Rain Rate
    0.0 mm/hr
    Wind Chill
    14.8° C
    Heat Index
    14.8° C
    Dewpoint
    11.4° C
    UV
    0.0
    Solar
    0 W/m2
    Last Updated: 1:35:00 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
    04:54
    Moon Phase
    First quarter (56% full)
    Civil Set
    21:55
    Day Length
    13:25:36
    Day High
    14.9° C @ 00:00 Tdy.
    Day Low
    14.6° C @ 01:18 Tdy.
    Day High Rain Rate
    0.0mm/hr00:00
    Day High Barometer
    102.02 kPa @ 00:00 Tdy.
    Day Low Barometer
    102 kPa @ 00:43 Tdy.
    Day Low Windchill
    14.6° C @ 01:18 Tdy.
    Day High Heat Index
    14.9° C @ 00:00 Tdy.
    Day High Wind Gust
    S 5.1km/h @ 01:25 Tdy.
    Day High Solar Radiation
    0W/m2 @ 00:00 Tdy.
    Day High UV Index
    0.0 @ 00:00 Tdy.

Updated 11:30AM.
Wind warnings ended and unlikely for rest of the day and the rain should be mostly done too. Good stuff! But flood watch still in effect.

Updated 9PM:

Good News

Bad News:

Flood Watch – Somass River (UPGRADED)
ISSUED: November 25, 2017 17:00 PM

The River Forecast Centre is upgrading a Flood Watch for:

  • The Somass River including the Sproat River, Ash River and tributaries

A storm cycle over Vancouver Island last week has saturated the soil in this area and caused lake levels to increase considerably. The river levels are currently rising slightly. Heavy rainfall about 60 mm is forecast for the Somass River area Saturday night through Sunday. Current hydrologic modelling indicates that the streamflow of the Somass River is expected to rise to approximately 800 m3/s, or similar to 2015 flood levels. The streamflow for the Sproat River is expected to rise to 300 m3/s, which is a 5 to 10-year return period flow.

Update 6:30PM FLOOD WATCH ISSUED COULD BE SIMILAR FLOWS TO 2015

Monitor the BC River Forecast centre for updates.

 

….. original post ….

We are in for another windstorm on Sunday around the south coast. As usual, actual location of highest winds depends on where the low comes ashore on the Island… but here’s the interesting part: There are two lows about 12 hours apart.

The first low, a 98.3kPa low, is slated to come ashore on the north island Sunday morning delivering strong winds all the way down the coast.


These should last through the morning.

The second low, 98.8kPa will come up from the south and come ashore near Bamfield.

Zoomed in:

This is just one model, so it is unlikely to be exact, however, it is worth the folks in Bamfield, being a little extra prepared. White indicates more than 70knot/129kph winds in exposed areas…

Depending on the track of the low, if it goes a little norh, it could translate to very strong winds in Port Alberni as well.

The intensity of the storm is also going to give a possibility of lightning being generated, as we saw a couple weeks ago.

High tide in Port Alberni is around 6:14AM on Sunday morning and then 5:30PM in the evening. Hopefully it does not combine too much with the wind and rain and river runoff to cause any more flooding than we already have.

Batten down the hatches and get some candles.