AVALANCHE ACTIVITY:
An avalanche has killed 8 people in Southwest China. Article below. CCTV Image Injured snowboarder rescued after avalanche in Wyoming. Article below. GTNP Image
Rock Shot 1 in Lakeside.
10:00 Hrs. -4 Deg C with a 15-45 KPH ESE wind at 1835 m.
Wednesday January 18, 2023. 13:00 Hrs. -5 Deg C with a 15-30 KPH South wind at 1835 m.
16:00 Hrs. -7 Deg C with a 10-15 KPH West wind at 1860 m. Snowed 3.7 cm from 15:15-16.15.
As of 07:00 Hrs this am we have broken cloud and unlimited visibility. High cloud in the distance.
Windy image from same time frame as above.
GOES 17 ABI IMAGE 2023/01/19. 05:00 Hrs.
Dirty upper ridge for Thursday with cooler temperatures.
No precipitation expected Thursday.
Northerly flow aloft.
500 MB map for Thursday.
850 Mb for Friday, dirty ridging with cooler temperatures.
Dry for Friday, may see a snow flurry.
Cool low will send a cold front our way on Saturday.
Light-moderate precipitation for Saturday.
High pushes onto the coast Sunday, unsettled weather, mix of cloud, sun, and flurries.
Avalanche mitigation on Whistler Wednesday produced Sz 1-2. Xl, Xe, Sc. 35-70 cm storm slabs.
Sz 1's Xl in Lakeside Bowl.
WEATHER YESTERDAY:
Sunrise Wednesday was at 08:03 Hrs. -4 Deg C with a 20-50 KPH ESE wind at 1835 m. S+1.5Weather Observations for January 19, 2023 taken at 06:00 Hours.
2280 meters -11, Winds were 5-10 KPH W--Horstman Hut
2180 meters -9, Winds were 10-30 KPH W--Whistler Peak
1860 meters -11, Winds were 0-5 KPH SE--Rendezvous
1835 meters -9, Winds were 0-5 KPH SW--Round House
1650 meters -9, 6 cm in 12 Hrs, 17 cm in 24 Hrs. Base 200 cm--Pig Alley
1570 meters -8, 5 cm in 12 Hrs, 13 cm in 24 Hrs. Base 138 cm--Catskinner
660 meters -3, Valley Temp, Max temp Yesterday was +2.2, 6.7 mm of precip yesterday.
FORECAST:
Ridging for today in a Northerly flow aloft. The FL is below surface and will remain below surface through the day. Sunny this am with an increase in cloud as the day progresses. Unsettled weather for Friday with more cloud than sum, chance of a flurry. Cold front and associated short wave trough will bring periods of light to moderate snowfall Saturday with moderate winds. Dirty shortwave ridging Sunday will bring mostly overcast skies with some flurries. Sunny breaks likely in the am. Seasonable temperatures. Unsettled Monday with periods of light snowfall and mostly overcast skies. Groundhog day for Tuesday. Drying trend for most of next week. Guesstimates: 0 cm by Friday am, 0-trace by Saturday am, 12-16 cm by Sunday am, trace-2 cm by Monday am, 2-6 cm by Tuesday am.
INFORMATION & OBSERVATIONS:
FROM AVALANCHE CANADA:
Travel and Terrain Advice
If you are increasing your exposure to avalanche terrain, do it gradually as you gather information.
Approach lee and cross-loaded slopes with caution.
Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.
The best and safest riding will be on slopes that have soft snow without any slab properties.
MODERATE--Sea to Sky Advisory available in the side bar.
LOCAL MIN REPORTS:
Wind & Pow; Jan 18, 2023
Brockton: Jan 17, 2023
SHORT CLIPS:
Gnarly Pillow Line leads to: Wipeout
Dicy tree crossing: Snowmobiling Skills
Wind Slabs: AvyBites
Triggering Test Slopes: Valuable Infornmation
ARTICLES:
8 people confirmed dead after an avalanche in Southwest China: Tibet
Injured snowboarder rescued after avalanche: Moose, Wyoming
Avalanche knocks out power to Ophir: Colorado
Work halted at Zojila Tunnel after recent avalanches: Kashmir
Managing Avalanche Risk--You're always (a little) wrong: Powder Cloud
You should pat attention to this when you go off-piste: Switzerland
How weather impacts avalanche conditions & forecasting tools for safe backcountry travel: OpenSnow
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