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Forecast Addendum - 12/6/2022 - 07:00am

Submitted by mmadden on Tue, 12/06/2022 - 4:14am
Recent Observations: 

Recent observations show that, in general, our snowpack is strengthening and on the right track. The recent new snow--21 inches (53 cm) in some places--has remained dry, low-density, and powdery. Relatively stable temperatures over the past 48 hours kept the new snow from forming large storm slabs. Most new snow was found to be resistant to sliding and unwilling to propagate. Evidence of previous wind transported snow was observed near Castle Lake. The weak sugary facets mentioned in snowpack observations were found to be rounding over, strengthening, and moving in the right direction. More information on these sugary facets can be found HERE. No natural or human-triggered avalanches have been reported. Overall, snow conditions appear to be quite pleasant.

Mountain Weather: 

Come and get it while it lasts! The low pressure system which brought snowy weather to the region since Friday (12/2) has departed to the south and east. High pressure is expected to bring mostly sunny weather today and tomorrow with temperatures hovering just below freezing at Bunny Flat. Winds from the NE-E-SE are expected to light. Like all things though, nothing lasts forever and we can expect the next system of snowy, stormy weather to move into the area on Thursday. If going out to enjoy the snow today, remember to bring the sunscreen! Snow reflects 90% of the sun's rays back at you--like a giant mirror--so it 's possible to sunburn more easily, particularly at altitude!

Visualizations of wind and pressure show a brief window of sunny high pressure between the previous and approaching low pressure systems

Source: Global Forecast System (GFS) - NWS - Windy

Today 7-8 Weather : 
Mostly sunny and calm. Snow level ~4,100'
Today 7-8 Wind Direction: 
E
Today 8-9 Weather: 
Mostly sunny
Today 8-9 Wind Direction: 
NW
Tomorrow 7-8 Weather: 
Sunny with light breeze. Snow level ~3,200'
Tomorrow 7-8 Wind Direction: 
SE
Tomorrow 8-9 Weather: 
Sunny with light breeze.
Tomorrow 8-9 Wind Direction: 
W
Tonight 7-8 Weather: 
Mostly clear. Snow level ~1,700'
Tonight 7-8 Wind Direction: 
N
Tonight 8-9 Weather: 
Mostly clear.
Tonight 8-9 Wind Direction: 
N
Today 7-8 Temp: 
28
Today 8-9 Temp: 
16
Tomorrow 7-8 Temp: 
27
Tomorrow 8-9 Temp: 
16
Tonight 7-8 Temp: 
16
Tonight 8-9 Temp: 
8
13
13
33
23
15.5
15.5
29.5
21
49.21
3.5
0.76
Grey Butte Temp Cur: 
18
Grey Butte Temp Min: 
17
Grey Butte Temp Max: 
31
Grey Butte Temp Avg: 
21
Grey Butte Wind Cur: 
2.5
Grey Butte Wind Max: 
14
Grey Butte Wind Gust Max: 
30.66
Grey Butte Wind Avg: 
E
Castle Lake Temp Cur: 
22.5
Castle Lake Temp Min: 
22
Castle Lake Temp Max: 
39.5
Castle Lake Temp Avg: 
27.5
Mount Eddy Temp Cur: 
15.5
Mount Eddy Temp Min: 
15.5
Mount Eddy Temp Max: 
28
Mount Eddy Temp Avg: 
22
Mount Eddy Wind Cur: 
0
Mount Eddy Wind Max: 
1
Mount Eddy Wind Gust Max: 
3.96
Mount Eddy Snow Depth: 
30.16
Mount Eddy Snow New: 
1.5
Ash Creek Bowl Temp Cur: 
17.5
Ash Creek Bowl Temp Min: 
15.5
Ash Creek Bowl Temp Max: 
25
Ash Creek Bowl Temp Avg: 
20.5
Ash Creek Bowl Snow New: 
6.2
Ash Creek Ridge Temp Cur: 
15
Ash Creek Ridge Temp Min: 
13.5
Ash Creek Ridge Temp Max: 
24
Ash Creek Ridge Temp Avg: 
18
Mt. Shasta City Temp Cur: 
32
Mt. Shasta City Temp Min: 
32
Mt. Shasta City Temp Max: 
37
Mt. Shasta City Temp Avg: 
33.5
Mt. Shasta City Wind Cur: 
0
Mt. Shasta City Wind Min: 
0
Mt. Shasta City Wind Max: 
0
Mt. Shasta City Wind Avg: 
0
Mt. Shasta City Wind Avg: 
N
Grey Butte Wind Min: 
0
Grey Butte Wind Avg: 
5.5
Mount Eddy Wind Min: 
0
Mount Eddy Wind Avg: 
0
Ski Bowl Snow Settlement: 
0
Mount Eddy Snow Settlement: 
0
Ash Creek Bowl Snow Settlement: 
0
Measured Precipitation Oct: 
4.94
Normal Precipitation Oct: 
6.68
Percent Precipitation Oct: 
74
Measured Precipitation MTD: 
1.61
Normal Precipitation MTD: 
1.05
Percent Precipitation MTD: 
153
Measured Precipitation YTD: 
12.89
Normal Precipitation YTD: 
32.06
Percent Precipitation YTD: 
40
Today SWE: 
0.00
Tonight SWE: 
0.00
Tomorrow SWE: 
0.00
Today Wind Max 7-9: 
10
Tonight Wind Max 7-9: 
10
Tomorrow Wind Max 7-9: 
10
Today Wind Min 7-9: 
0
Tonight Wind Min 7-9: 
0
Tomorrow Wind Min 7-9: 
0
Today Wind Max 9-11: 
15
Tonight Wind Max 9-11: 
15
Tomorrow Wind Max 9-11: 
20
Today Wind Min 9-11: 
5
Tonight Wind Min 9-11: 
5
Tomorrow Wind Min 9-11: 
10
Today Snow Max 7-9: 
0.00
Tonight Snow Max 7-9: 
0.00
Tomorrow Snow Max 7-9: 
0.00
Today Snow Min 7-9: 
0.00
Tonight Snow Min 7-9: 
0.00
Tomorrow Snow Min 7-9: 
0.00
Today Snow Max 9-11: 
0.00
Tonight Snow Max 9-11: 
0.00
Tomorrow Snow Max 9-11: 
0.00
Today Snow Min 9-11: 
0.00
Tonight Snow Min 9-11: 
0.00
Tomorrow Snow Min 9-11: 
0.00
Ash Creek Bowl HS: 
51.7
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: 
Moderate
Current Time: 
3:00 AM