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Forecast Addendum - 12/26/2021 - 07:00am

Submitted by nmeyers on Sun, 12/26/2021 - 5:32am
Recent Observations: 

Christmas was a pretty quiet day of weather, with mixed clouds and some blue sky. Westerly wind continues to crank, blowing steadily over much of the weekend. Active wind loading has been observed on many easterly aspects near and above treeline. The wind on Mt. Shasta can be funky, some areas have been getting hammered, others not so much. 

Several red flags of avalanche danger were observed yesterday including wind blowing snow, fragile cornices and cracking/blocking along ridgelines. Moderate to strong west wind (~20 mi/hr) was efficiently transporting new snow and loading easterly slopes. Gray Butte weather station continues to report average wind speeds of ~20 mi/hr with gusts 30-40 mi/hr, W-NW.

No natural or human triggered avalanches have been reported or observed.

Over on the west side, about 3 to 4 inches of new snow was observed on the road leading up to Castle Lake. Overall, the west side has been recording more snow with the holiday weekend storm track.

 

 

 

Mountain Weather: 

A cold, upper trough continues to advance southeastward this afternoon and tonight. Mt. Shasta has been sitting on the southern edge of the storm track and thus the somewhat lack luster precipitation amounts. Southern Oregon has been doing much better. One thing is for sure, it's cold out and there is a good chance if precipitation is falling from the sky, it's in the form of snow. Snow will gradually diminish through Monday morning and eventually come to an end Monday afternoon. While there will be a break, we are not done with winter weather. More on that later. For today, expect snow showers in the area, cold temps and westerly wind over higher terrain. 



Today 7-8 Weather : 
Snow showers, widespread blowing snow, windy
Today 7-8 Wind Direction: 
SW
Today 8-9 Weather: 
Snow showers, widespread blowing snow, windy
Today 8-9 Wind Direction: 
W
Tomorrow 7-8 Weather: 
Snow showers before 11 AM, cloudy, becoming gradually sunny, blustery
Tomorrow 7-8 Wind Direction: 
W
Tomorrow 8-9 Weather: 
Snow showers mainly before 10 AM, windy
Tomorrow 8-9 Wind Direction: 
W
Tonight 7-8 Weather: 
Snow showers, heavy at times, widespread blowing snow, windy
Tonight 7-8 Wind Direction: 
SW
Tonight 8-9 Weather: 
Snow showers, heavy at times, widespread blowing snow, windy
Tonight 8-9 Wind Direction: 
W
Today 7-8 Temp: 
21
Today 8-9 Temp: 
4
Tomorrow 7-8 Temp: 
19
Tomorrow 8-9 Temp: 
8
Tonight 7-8 Temp: 
14
Tonight 8-9 Temp: 
1
12
12
25
20
8
8
20.5
14.5
68
0
0.1
Grey Butte Temp Cur: 
6.5
Grey Butte Temp Min: 
6.5
Grey Butte Temp Max: 
20
Grey Butte Temp Avg: 
13.5
Grey Butte Wind Cur: 
19.5
Grey Butte Wind Max: 
22.5
Grey Butte Wind Avg: 
WNW
Castle Lake Temp Cur: 
14
Castle Lake Temp Min: 
13.5
Castle Lake Temp Max: 
27.5
Castle Lake Temp Avg: 
20
Castle Lake Snow Depth: 
43.16
Castle Lake Snow New: 
0
Mount Eddy Temp Cur: 
12.5
Mount Eddy Temp Min: 
12
Mount Eddy Temp Max: 
23.5
Mount Eddy Temp Avg: 
18
Mount Eddy Wind Cur: 
1.5
Mount Eddy Wind Max: 
2
Mount Eddy Snow Depth: 
50.87
Mount Eddy Snow New: 
0.5
Ash Creek Bowl Temp Cur: 
10
Ash Creek Bowl Temp Min: 
9.5
Ash Creek Bowl Temp Max: 
20.5
Ash Creek Bowl Temp Avg: 
16
Ash Creek Bowl Snow New: 
0.4
Ash Creek Ridge Temp Cur: 
5
Ash Creek Ridge Temp Min: 
5
Ash Creek Ridge Temp Max: 
17.5
Ash Creek Ridge Temp Avg: 
12
Ash Creek Ridge Wind Cur: 
0
Ash Creek Ridge Wind Max: 
0
Mt. Shasta City Temp Cur: 
24
Mt. Shasta City Temp Min: 
22
Mt. Shasta City Temp Max: 
37
Mt. Shasta City Temp Avg: 
30.5
Mt. Shasta City Wind Cur: 
0
Mt. Shasta City Wind Min: 
0
Mt. Shasta City Wind Max: 
4
Mt. Shasta City Wind Avg: 
N
Sand Flat Comments: 
State owned station, down
Grey Butte Wind Min: 
13
Mount Eddy Wind Min: 
0
Ash Creek Ridge Wind Min: 
0
Ski Bowl Snow Settlement: 
1
Castle Lake Snow Settlement: 
2.1
Mount Eddy Snow Settlement: 
0
Ash Creek Bowl Snow Settlement: 
0
Measured Precipitation Oct: 
13.15
Normal Precipitation Oct: 
11.01
Percent Precipitation Oct: 
119
Measured Precipitation MTD: 
3.85
Normal Precipitation MTD: 
5.38
Percent Precipitation MTD: 
72
Measured Precipitation YTD: 
29.1
Normal Precipitation YTD: 
36.39
Percent Precipitation YTD: 
80
Today SWE: 
0.23
Tonight SWE: 
0.31
Tomorrow SWE: 
0.05
Today Wind Max 7-9: 
15
Tonight Wind Max 7-9: 
15
Tomorrow Wind Max 7-9: 
15
Today Wind Min 7-9: 
10
Tonight Wind Min 7-9: 
10
Tomorrow Wind Min 7-9: 
10
Today Wind Max 9-11: 
50
Tonight Wind Max 9-11: 
50
Tomorrow Wind Max 9-11: 
40
Today Wind Min 9-11: 
40
Tonight Wind Min 9-11: 
40
Tomorrow Wind Min 9-11: 
30
Today Snow Max 7-9: 
5.00
Tonight Snow Max 7-9: 
8.00
Tomorrow Snow Max 7-9: 
1.00
Today Snow Min 7-9: 
3.00
Tonight Snow Min 7-9: 
4.00
Tomorrow Snow Min 7-9: 
0.00
Today Snow Max 9-11: 
7.00
Tonight Snow Max 9-11: 
8.00
Tomorrow Snow Max 9-11: 
1.00
Today Snow Min 9-11: 
3.00
Tonight Snow Min 9-11: 
4.00
Tomorrow Snow Min 9-11: 
0.00
Ash Creek Bowl HS: 
43.56
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: 
4:00 AM