Wayne Flann Avalanche Blog: November 30, 2020

Saturday & Sunday:

Awesome light Saturday morning.

Rainbow Mountain in the Background.

Saturday November 29, 2020. 14:30 Hrs: -5 with a 5-10 SE breeze. +3 in the valley.

Satellite image from 14:00 Hrs Saturday.

Ipsoot early Sunday morning.

Fresh turns Sunday morning. Nice light until the front rolled in around noon.

Sunday Nov 29, 2020. 14:00 Hrs. Snowing lightly. -2 with a 10-25 KPH SE wind. 0 in the valley.

Satellite image from Sunday Pm.

Looks promising, last two fronts were disappointingly dry.

Weather Observations for November 30, 2020 taken at 06:30 Hours.

2240 meters -6, Winds were 65-95 KPH E--Horstman Hut

2180 meters -6, Winds were 70-100 KPH ENE--Whistler Peak
1860 meters -4, Winds were 25-50 KPH S --Rendezvous

1835 meters -4, Winds were 20-50 KPH ESE--Round House

1650 meters -3, 17 cm in 12 Hrs, 17 cm in 24 Hrs, Base 98 cm --Pig Alley
1560 meters -3, 9 cm in 12 Hrs, 9 cm in 24 Hrs, Base 59 cm--Catskinner

660 meters 0, Valley Temp, Max temp Yesterday was +1.1, 4.5 mm of precip yesterday.

As of 07:15 Hrs this am we have overcast skies, variable visibility and snowing lightly.

FORECAST:

Cold front with strong gusty winds will push through sometime this morning in a brief South Westerly flow aloft, switching to a North Westerly flow aloft. The freezing level will hover in the 1000 meter range dropping back to surface tonight. Should see unsettled weather around noon with a mix of sun and cloud as the upper trough pushes through and the ridge begins to build. Tuesday will see sunny weather and inverted temperatures as the warm ridge strengthens and dominates the pattern in the Pacific Northwest. A few days of warm sunny weather, may see some cloud and a slight chance of a shower on Thursday, as a weak front brushes the coast, more on that in the next post. Guesstimates: 4-6 cm above 1000 m by Tuesday am.

GOES IR image from this am.