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Forecast Addendum - 12/14/2021 - 07:00am

Submitted by abeverly on Tue, 12/14/2021 - 6:37am
Recent Observations: 

In the last 24 hours on Mount Shasta, we've received about 15 inches of new snow. Since Saturday afternoon, around 34 inches have fallen. Above treeline, westerly winds have been moderate to strong, gusting up to 55 mph. Mean temperatures have been 20ºF, ranging from 12 to 24 degrees.

Castle Lake and the Eddies have received around 30 inches of snow.

A tour from Mount Shasta Ski Park up to the base of Gray Butte yesterday confirmed the numbers the weather stations are reporting. At the time, the height of snow was 25-30 inches (65-75 cm). Snow was falling at a rate of over 1 in/hr (2.5 cm/hr). Visibility was low. We were not able to get high enough to observe wind affect or areas where old snow exists. The new snow was low density, fist hard down to the dirt. Shovel tilt and column tests indicated easy failures on a slight density change 14 inches (35 cm) down. This could be indicative of a storm slab problem on steep slopes.

Snow depths at the Mount Shasta Ski Park were in the neighborhood of 20-24 inches. Cats were running and packing it in. They are on target for a Friday opening.

Everitt Memorial Highway (EMH) and Castle Lake Roads were closed yesterday. We are hopeful that at least EMH will open today. We plan on checking first thing this morning and will send out an update on social media.

Mountain Weather: 

Colder, drier air is moving in today. Expect some lingering snow showers, but overall clearing skies and light to moderate westerly winds. Look out for black ice on roads.

A warm front will push moister air in tomorrow and we could see 7-20 inches of snow from below treeline to above treeline regions. Snow levels will remain near town throughout.

After, we should see a break in the action until Sunday. Next week will bring more inclement weather.

Today 7-8 Weather : 
A 20 percent chance of snow showers before 10 a.m. Mostly sunny.
Today 7-8 Wind Direction: 
NW
Today 8-9 Weather: 
A 20 percent chance of snow showers before 10 a.m. Mostly sunny and cold. Low wind chills.
Today 8-9 Wind Direction: 
W
Tomorrow 7-8 Weather: 
Snow. The snow could be heavy at times. Widespread blowing snow after 10 a.m. Chance of precipitation is 90%.
Tomorrow 7-8 Wind Direction: 
S
Tomorrow 8-9 Weather: 
Snow. The snow could be heavy at times. Widespread blowing snow. Windy. Low wind chills. Chance of precipitation is 90%.
Tomorrow 8-9 Wind Direction: 
SW
Tonight 7-8 Weather: 
A slight chance of snow showers. Increasing clouds.
Tonight 7-8 Wind Direction: 
SW
Tonight 8-9 Weather: 
A slight chance of snow showers. Increasing clouds. Breezy. Low wind chills.
Tonight 8-9 Wind Direction: 
W
Today 7-8 Temp: 
21
Today 8-9 Temp: 
6
Tomorrow 7-8 Temp: 
23
Tomorrow 8-9 Temp: 
14
Tonight 7-8 Temp: 
18
Tonight 8-9 Temp: 
5
15
15
28
23
11
10.5
24
18
51.81
10.5
0.82
Grey Butte Temp Cur: 
10.5
Grey Butte Temp Min: 
10
Grey Butte Temp Max: 
23
Grey Butte Temp Avg: 
17.5
Grey Butte Wind Cur: 
3
Grey Butte Wind Max: 
32.5
Grey Butte Wind Avg: 
WNW
Castle Lake Temp Cur: 
18
Castle Lake Temp Min: 
18
Castle Lake Temp Max: 
28.5
Castle Lake Temp Avg: 
24
Castle Lake Snow Depth: 
27.48
Castle Lake Snow New: 
9.8
Mount Eddy Temp Cur: 
13.5
Mount Eddy Temp Min: 
13.5
Mount Eddy Temp Max: 
26.5
Mount Eddy Temp Avg: 
21.5
Mount Eddy Wind Cur: 
1.5
Mount Eddy Wind Max: 
3.5
Mount Eddy Snow Depth: 
29.25
Mount Eddy Snow New: 
2.1
Ash Creek Bowl Temp Cur: 
15
Ash Creek Bowl Temp Min: 
14.5
Ash Creek Bowl Temp Max: 
24.5
Ash Creek Bowl Temp Avg: 
20.5
Ash Creek Bowl Snow New: 
12.3
Ash Creek Ridge Temp Cur: 
10.5
Ash Creek Ridge Temp Min: 
10.5
Ash Creek Ridge Temp Max: 
21.5
Ash Creek Ridge Temp Avg: 
17
Ash Creek Ridge Wind Cur: 
0
Ash Creek Ridge Wind Max: 
0
Mt. Shasta City Temp Cur: 
29
Mt. Shasta City Temp Min: 
29
Mt. Shasta City Temp Max: 
36
Mt. Shasta City Temp Avg: 
33
Mt. Shasta City Wind Cur: 
0
Mt. Shasta City Wind Min: 
0
Mt. Shasta City Wind Max: 
5
Mt. Shasta City Wind Avg: 
N
Grey Butte Wind Min: 
3
Mount Eddy Wind Min: 
0.5
Ash Creek Ridge Wind Min: 
0
Ski Bowl Snow Settlement: 
0
Castle Lake Snow Settlement: 
0
Mount Eddy Snow Settlement: 
0
Ash Creek Bowl Snow Settlement: 
0
Measured Precipitation Oct: 
11.96
Normal Precipitation Oct: 
8.43
Percent Precipitation Oct: 
142
Measured Precipitation MTD: 
2.66
Normal Precipitation MTD: 
2.8
Percent Precipitation MTD: 
95
Measured Precipitation YTD: 
27.91
Normal Precipitation YTD: 
33.81
Percent Precipitation YTD: 
83
Today SWE: 
0.04
Tonight SWE: 
0.00
Tomorrow SWE: 
1.04
Today Wind Max 7-9: 
5
Tonight Wind Max 7-9: 
10
Tomorrow Wind Max 7-9: 
20
Today Wind Min 7-9: 
0
Tonight Wind Min 7-9: 
5
Tomorrow Wind Min 7-9: 
15
Today Wind Max 9-11: 
15
Tonight Wind Max 9-11: 
20
Tomorrow Wind Max 9-11: 
35
Today Wind Min 9-11: 
10
Tonight Wind Min 9-11: 
15
Tomorrow Wind Min 9-11: 
30
Today Snow Max 7-9: 
0.50
Tonight Snow Max 7-9: 
0.00
Tomorrow Snow Max 7-9: 
11.00
Today Snow Min 7-9: 
0.00
Tonight Snow Min 7-9: 
0.00
Tomorrow Snow Min 7-9: 
6.00
Today Snow Max 9-11: 
1.00
Tonight Snow Max 9-11: 
0.00
Tomorrow Snow Max 9-11: 
16.00
Today Snow Min 9-11: 
0.00
Tonight Snow Min 9-11: 
0.00
Tomorrow Snow Min 9-11: 
10.00
Ash Creek Bowl HS: 
38.77
Weather Station Discussion: 
The table below summarizes data reported from all of our weather stations over the last 24 hours.
Seasonal Stats Discussion: 
The wet season is October 1 through May 1. The table below summarizes recorded vs. normal precipitation amounts for the City of Mount Shasta.
Overall Danger Rating: 
Considerable
Current Time: 
6:00 AM