18 Apr 2015

April 18, 2015

    High thin cloud layer early Friday April 17, 2015.

    08:00 Hours Friday morning.

    Wedge Friday morning.

    Later in the morning convective cloud development brought a mix of cloud and sun.

    Some of the clouds were looking pretty dark but no precipitation in our area.

    15:00 Hours yesterday afternoon.

    Later in the afternoon the high pressure began to build with more blue than white.


Weather Observations for April 18, 2015; taken at 06:00 Hours.

2240 meters      -3, Winds were 5-10 KPH from the SSW
2180 meters       0, Winds were 10-15 KPH from the WSW
1860 meters      -1, Winds were 5-10 KPH from the S
1835 meters       0, Winds were 0-10 KPH from the ENE
1650 meters      -1, No new snow, Base 187 cm.
1550 meters       0, No new snow, Base 140 cm, Relative Humidity 60%. 
  660 meters      -1, Valley Temp, Max Temp Yesterday was +16.8.

   As of 07:00 Hours we have clear skies and unlimited visibility.

For the forecast, high pressure at the surface and aloft is centred to the Southwest of our area bringing dry warm conditions into Tuesday with a Northwesterly flow aloft. The freezing level will be well above the local peaks during this sunny period.  A weak front will move onshore on Tuesday afternoon with unsettled weather and the chance of some light rain showers in a Westerly flow. Expect typical unsettled spring conditions Wednesday and Thursday with the FL dropping back to more normal values. Low of 1500 meters to highs of 1800 meters. Get out your sun screen.

    High pressure dominating the pattern for the next few days.

    Sunny warm weather for this time of the year.

    Very warm temperatures associated with the high pressure.

    Each day it warms slightly.

    Sunny again on Monday.


ARTICLES:

Coast Mountain Backcountry Report-April 16, 2015: Escape Route

April Powder: Avalanche Canada

Integrated Seasonal Climate Bulletin: Environment Canada

Using Space Imagery to understand avalanches on Mt. Everest: SpaceRef

Warm temperatures will have an effect on the snow pack: Isothermal




   13:15 Hours yesterday afternoon.

    Big picture yesterday at 13:15.

    Sun on East facing moraine below Fissile produced some small wet avalanche activity.

    Evidence of pinwheeling over the past couple of days.

    Cloudy yesterday but still enough sun to warm up solar aspects.

    Very dry in the valley this spring!

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