October 29, 2018

    AVALANCHE ACTIVITY:

    No new known avalanche activity to report. Snow forecasted for upper elevations early this week.



    PAST WEEK:

    Monday evening, another great day in the mountains. October 22, 2018.

    Tuesday morning October 23, 2018. 07:45 Hrs, just before sunrise. +9 Deg C.

    Wednesday morning October 24, 2018.  0 Deg C as of 08:00 hrs.

    Thursday morning October 25, 2018.

    Friday morning October 26, 2018. +3.5 Deg C at 08:30 Hrs. Wet!!

    Saturday morning October 27, 2018. -1.3 Deg C as of 07:45 Hrs.

    Sunday morning October 28, 2018. 08:00 Hrs -1 Deg C, snowing lightly.



Weather Observations for October 29, 2018  taken at 06:00 Hours.

2240 meters        -5, Winds were 25-40 KPH S   --Horstman Hut
1860 meters        -3, Winds were 10-15 KPH SE --Rendevous
1650 meters        -2, 4.0 mm of precip in 12 hrs   --Pig Alley

  660 meters       +4, Valley Temp, Max Temp Yesterday was +6.4, 19.8 mm of precip recorded yest

    As of 06:30 Hrs this am we have overcast skies and limited visibility. Will update at 08:00 Hrs.

    Monday morning October 29, 2018. 08:00 Hrs.

    This image is from October 29, 2017. +3 Deg C and not much snow.

    This image is from October 29, 2016. Archive section in the side bar goes back 6 years.

    This image is from October 29, 2015.



FORECAST:

A weakening upper trough will bring mostly cloudy skies with the chance of some intermittent showers this afternoon in a Westerly flow aloft. The freezing level will hover in the 1500 meter range into Tuesday. Unsettled weather by this evening with a shift to a Northwesterly flow which will continue into Tuesday with an unsettled pattern. This will be short lived though as a warm front begins to push onto the coast Tuesday evening into Wednesday with periods of light rain. Models are in slight disagreement for Wednesday with a chance of drier conditions for Wednesday afternoon. The FL will rise to around 2000 meters on Wednesday and peak at about 2700 meters on Thursday. Models are trending towards a moist windy series of frontal waves for Thursday into Friday in a Southwesterly flow. Some models are calling for unsettled weather for Friday but there is a strong frontal band forecasted to arrive on Saturday so only time will tell. Long term models are trending toward a drier Sunday with cooler temperatures expected early next week.

    GOES IR image this am.

    850 MB models represent temperatures at around 1500 meters.

    Drying trend later today.

    Fronts along the coast.

    High continues to circulate warm air.

    Warm front for Tuesday night.

    Freezing levels begin to rise slightly.

    Southwesterly flow bringing moisture from Hawaii.

    A warm Pacific ocean.

    Low pressure strengthening.

    Friday may change!

    INFORMATION & OBSERVATIONS:

    Clouds moved in around 12:00 Hrs on Tuesday.

    Overcast by 17:00 Hrs, intermittent showers by 20:00 Hrs on Tuesday. 0.3 mm recorded at 660 M.

    A busy Mom.

    A few showers Wednesday morning but unsettled by the afternoon. 1.1 mm recorded in the valley.

    Cloudy with periods of rain on Thursday. 11.4 mm recorded at 660 meters.

    Breaks later in the day Friday, 14.8 mm of rain recorded at 660 M.

    Cable being strung on the lower Blackcomb Gondola line Friday.

    Saturday afternoon, 1.4 mm of rain recorded at 660 meters.

    Snow at Pig Alley (1650 meters) on Sunday.

    Image from Sunday afternoon.

    Big picture on Sunday.

    Avalanche Canada Foundation Fund Raiser:  Click here to register Spin for Avalanche Safety




VIDEOS:

Anticrack nucleation and avalanche release: ISSW 2018


ARTICLES:

Mistakes I've made in Avalanche Terrain: Kirsten Armleder

Think winter adventuring in the Sea to Sky: Think Avalanches

New Accident Report details 2015 avalanche deaths: BRASS

2018 California Avalanche Workshop: Recap

Alpine Meadows Residents stand apposed to gazex for avalanche control on road: California