AVALANCHE ACTIVITY:
No new avalanche activity observed on Blackcomb Sunday.
Old Na Cornice collapses off Horstman Glacier Wind Lip.
Looking at Phalanx Ridge from the valley. Amazing how much rock has been exposed.
WEATHER YESTERDAY:
Sunrise Sunday was at 05:38 Hrs. -1 Deg C with a 10-15 KPH South wind at 1860 m.
08:00 Hrs. 0 Deg C with a 5-10 KPH South breeze at 1860 m.
10:00 Hrs. -1 Deg C with a 5-10 KPH South wind at 2280 m.
Sunday May 7, 2023.12:00 Hrs. +4 Deg C with a 5-10 KPH SW breeze at 1835 m.
14:00 Hrs. 7th Heaven. Snowing lightly. +1 Deg C with a 5-15 KPH NE wind at 2000 m.
16:00 Hrs. +4 Deg C with a 5-20 KPH SW wind at 1860 m.
20:00 Hrs. -1 Deg C with a very light Northerly breeze at 2280 m.
Weather Observations for May 8, 2023 taken at 06:00 Hours.
2280 meters -2, Winds were 5-10 KPH NE--Horstman Hut
1860 meters 0, Winds were 5-10 KPH N--Rendezvous
1650 meters +1, 0 mm in 12 Hrs, 0 mm in 24 Hrs. Base 204 cm--Pig Alley
1570 meters +1, 0 mm in 12 Hrs, 0 mm in 24 Hrs. Base 113 cm--Catskinner
660 meters +5, Valley Temp, Max temp Yesterday was +15.4, 0.0 mm of precip yesterday.
Max temperature Sunday at 2280 m was +1.5 Deg C at 15:30 Hrs. Spiked for 6 hrs.
09:15 Start on Excalibur this am.
As of 06:00 Hrs no new precipitation. Base 204 cm at 1650 m.
As of 07:00 Hrs we have broken cloud and unlimited visibility.
FORECAST:
Another unsettled day with sun, clouds, and showers in a Southerly-Southeasterly flow aloft. Upper level troughing as the low continues to bring a moist and cool weather pattern. Sunny in the am with clouds and showers pushing in around noon. Overcast conditions just after noon, transitioning to cloud and sun later in the pm. The FL is hovering around 1900 m and will likely rise to 2500 m with daytime heating. May see the FL drop back down to 2000 m by Tuesday am. Risk of a thunderstorm to our East today around noon. Time will tell! Dirty ridging for Tuesday with an early morning shower then a mix of sun and cloud. Ridge strengthens on Wednesday with sunny skies. Low will send some cloud our way Thursday with a mix of sun and cloud. Cloudy with sunny breaks on Friday before the ridge and associated heat dome bring Sunny skies, warm temperatures into next week with the FL at 5000+ meters. Guesstimates: 1-3 mm by Tuesday am, no precipitation expected until some time after next weekend.
GOES IR IMAGE from this am.
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WINDY IMAGE 2023/05/08. 05:00 Hrs.
Weak broad upper level trough for Monday. Unsettled weather. seasonable temperatures.
Mix of sun and cloud. Showers forecasted for around noon on Monday.
Southerly-Southeasterly flow aloft.
Weak short wave trough early Tuesday am, transitioning to a dirty ridge by the PM. Cool.
Early am shower Tuesday with a drying trend in the am, dirty ridging by the pm.
Ridge strengthens Wednesday with sunny skies in the am. Low sends cloud later in the pm.
Dry sunny day Wednesday. Some cloud will infiltrate later in the pm.
Dirty ridging Thursday. Low spills cloud into the area. Dry with seasonable temperatures.
Very large low will send cloud into our zone on Thursday. High continues to push back.
Dirty ridging on Friday with warmer temperatures.
High strengthens Saturday with sunny skies and warm temperatures.
Looking like the heat dome is on its way, for Saturday into early next week.
Good chance we will see no precipitation for the extended period. Snowpack will disappear quickly.
INFORMATION AND OBSERVATIONS:
Amazing how fast the mid mountain snow pack is disappearing.
New hazards every day with the changing conditions.
Looks like summer in the valley.
New airbag is pretty popular.
Breaks in the pm.
There were some nice sunny breaks.
Dark convective clouds in the afternoon.
Later in the pm.
No tracks on Cowboy Ridge.
There are many bears roaming around in the valley!
FROM AVALANCHE CANADA:
Travel and Terrain Advice
Avoid thin areas like rock outcroppings where you're most likely to trigger avalanches failing on deep weak layers.
Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.
Avoid exposure to overhead avalanche terrain, avalanches may run surprisingly far.
Avoid steep slopes when air temperatures are warm, it is raining, or solar radiation is strong.
Avoid terrain traps such as gullies and cliffs where the consequence of any avalanche could be serious.
CONSIDERABLE From 2023/05/05--NO MORE REPORTS THIS SEASON.
LOCAL MIN REPORTS:
Tricouni S2: May 7, 2023
SHORT CLIPS:
Himalayan: Avalanche
Sometimes you get lucky: Scary Avalanche
How to knock yourself out: Hit a tree
Slab: Avalanche
ARTICLES:
Backcountry Skiers share their story after getting caught in two spring avalanches: Colorado
Passo Gavia removed from Giro due to risk of avalanche: Italy
The use of Artificial Intelligence in Predicting and Preventing Avalanches: TS2 Space
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