April 15, 2015

    Mid Mountain cloud early Tuesday April 14, 2015.

    Another great day on the hill.

    Avalanche control produced some size 1 soft slabs.

    Some people were saying it was the best day of the year, others said best day of the season.

    Clouds did begin to lift and convective clouds began to form in the afternoon.

    Large convective clouds eventually dropped grauple in the valley.

    Tuesday, isolated showers in the afternoon.

    Just before sunset Tuesday evening which was officially at 20:03 Hours.


Weather Observations for April 15, 2015; taken at 06:00 Hours.

2240 meters      -7, Winds were 25-30 KPH from the SSE
2180 meters      -7, Winds were 30-35 KPH from the SW
1860 meters      -7, Winds were 10-20 KPH from the E
1835 meters      -6, Winds were 10-20 KPH from the SW
1650 meters      -5, No new snow, Base 205 cm.
1550 meters      -4, No new snow, Base 148 cm, Relative Humidity 86%. 

  660 meters      -1, Valley Temp, Max Temp Yesterday was +9.0, 0.2 mm recorded there on Tuesday.

    As of 07:00 Hours we have broken cloud and unlimited visibility.

For the forecast, a ridge of high pressure to our South will weaken enough today to allow cloud to move into the zone from the low to our Northwest in a Northwesterly flow. Today will be mostly cloudy with the ridge strengthening this evening with unsettled weather expected for the remainder of the week. The air mass will be moist so there is a chance of some precipitation for today. Convective cloud development on Thursday may see some isolated showers as well, and there is a good chance of some convective shower activity on Friday.The ridge builds Saturday for warm, dry, sunny weather into mid next week. The freezing level today will rise to 1600 meters dropping to 1300 meters this evening. The rest of the week will see the FL continually rising with FL well above the local peaks into next week maxing out at 3000 meters by Monday. Guesstimates: Trace to 1 cm by Thursday morning in the alpine, Trace to 1 cm in the alpine by Saturday morning.

    Looks to be a mostly cloudy day.

    Unsettled for Thursday.

    Drying out by Friday night.

    High pressure for Saturday.

    Sunny and warm for Sunday.

    Sunny and warmer for Monday.


ARTICLES:

Assessment shows building in Avalanche Path: Jumbo Glacier Resort

Recognising Avalanche Terrain: Gallatin Avalanche Center

Avalanche Awareness and Women: Snow Bunny Magazine

Mountain Weather Forecast: Avalanche Canada


Thanks to Toby Salin for this intel from yesterday on Rainbow Mountain:

Snowboarder triggered class 2ish from this afternoon. NE facing on latest crust layer. Did not step down. Buddy went for a ride but no injury or burial. Self extracted.

                                                                                                                           Toby Salin Photo

More intel from Nicole Koshure from yesterday: Slide triggered yesterday lookers right of wind lip below Don't Swill. 50-60 cm crown. About 20 meters wide

                                                                                                                           Nicole Koshure Photo

    The snow was dry and cold.

    Avalanche control results above the Horstman Glacier.

    Lots of ski tourers out and about yesterday.

    Boarding into his sluff.

    There were tracks every where yesterday morning.