You are here

Forecast Addendum - 12/17/2021 - 07:00am

Submitted by nmeyers on Fri, 12/17/2021 - 5:43am
Recent Observations: 

Yesterday was a clearing day, the day after the storm(s). The season opening storm cycle that began on 12/11/21, brought 48+ inches of snow at treeline on Mt. Shasta.  That's 4 feet folks, and in some wind loaded areas, more. A brief hiatus in the storms took place late on the 13th, but then kicked back in on the evening of the 15th. Superb, southerly flow turned on the Shasta snow machine for the tail end of the cycle and brought 1-2 feet of additional, low density snow. 

Prior to all of this, most of the Shasta area had little to no snowpack, so yes, we've gone from zero to hero. The only areas that held any notable snowpack before this storm cycle was above 8,500 feet on Shasta itself. Now, we are in full winter mode and while many obstacles are still just barely hidden, most everything is well covered. With a little settlement, we should be looking pretty good for the season. And with next week looking stormy, stoke is high. For the next day or so, be careful carving too deep on your sled or skis. Hard, hidden objects still lurk in the low density, bottomless snowpack. All the new snow is...DEEP.

No recent avalanches or signs of danger were observed yesterday. Much of the snowpack has good anchoring from earthly objects. Several inches of settlement has already occurred with a little low angle, California sun. This will continue today with the warm-up expected. 

Mountain Weather: 

We've had a good bit of action over the past week. The next couple of days will mellow out and give us all a chance to get those driveways, sidewalks and patios dialed in. Today will be clear and dry, though expect valley clouds. Daytime high temperatures will hover in the low 30s below treeline and in the mid 20s near and above treeline. West-Northwest wind will be light to moderate. More precipitation and an active weather pattern will commence Sunday.

Today 7-8 Weather : 
Sunny
Today 7-8 Wind Direction: 
W
Today 8-9 Weather: 
Sunny and breezy
Today 8-9 Wind Direction: 
NW
Tomorrow 7-8 Weather: 
Partly sunny
Tomorrow 7-8 Wind Direction: 
SW
Tomorrow 8-9 Weather: 
Partly sunny and windy
Tomorrow 8-9 Wind Direction: 
W
Tonight 7-8 Weather: 
Partly cloudy
Tonight 7-8 Wind Direction: 
Variable
Tonight 8-9 Weather: 
Mostly cloudy and windy
Tonight 8-9 Wind Direction: 
NW
Today 7-8 Temp: 
31
Today 8-9 Temp: 
26
Tomorrow 7-8 Temp: 
31
Tomorrow 8-9 Temp: 
27
Tonight 7-8 Temp: 
26
Tonight 8-9 Temp: 
26
13
13
27
22
0
0
27.5
17
29
22.5
63.22
0
0.01
Grey Butte Temp Cur: 
26.5
Grey Butte Temp Min: 
16
Grey Butte Temp Max: 
26.5
Grey Butte Temp Avg: 
20.5
Grey Butte Wind Cur: 
4.5
Grey Butte Wind Max: 
15
Grey Butte Wind Avg: 
ESE
Castle Lake Temp Cur: 
21.5
Castle Lake Temp Min: 
20.5
Castle Lake Temp Max: 
31
Castle Lake Temp Avg: 
25
Castle Lake Snow Depth: 
35.29
Castle Lake Snow New: 
0
Mount Eddy Temp Cur: 
27.5
Mount Eddy Temp Min: 
20
Mount Eddy Temp Max: 
27.5
Mount Eddy Temp Avg: 
23.5
Mount Eddy Wind Cur: 
2
Mount Eddy Wind Max: 
2.5
Mount Eddy Wind Avg: 
VAR
Mount Eddy Snow Depth: 
43
Mount Eddy Snow New: 
0
Ash Creek Bowl Temp Cur: 
18
Ash Creek Bowl Temp Min: 
16.5
Ash Creek Bowl Temp Max: 
24.5
Ash Creek Bowl Temp Avg: 
20
Ash Creek Bowl Snow New: 
0
Ash Creek Ridge Temp Cur: 
17.5
Ash Creek Ridge Temp Min: 
14.5
Ash Creek Ridge Temp Max: 
20.5
Ash Creek Ridge Temp Avg: 
17
Ash Creek Ridge Wind Cur: 
0
Ash Creek Ridge Wind Max: 
0
Mt. Shasta City Temp Cur: 
31
Mt. Shasta City Temp Min: 
30
Mt. Shasta City Temp Max: 
35
Mt. Shasta City Temp Avg: 
32.5
Mt. Shasta City Wind Cur: 
0
Mt. Shasta City Wind Min: 
0
Mt. Shasta City Wind Max: 
0
Mt. Shasta City Wind Avg: 
N
Grey Butte Wind Min: 
2.5
Mount Eddy Wind Min: 
0
Ash Creek Ridge Wind Min: 
0
Sand Flat Snow Settlement: 
0
Ski Bowl Snow Settlement: 
5
Castle Lake Snow Settlement: 
2.5
Mount Eddy Snow Settlement: 
1
Ash Creek Bowl Snow Settlement: 
1.8
Measured Precipitation Oct: 
12.11
Normal Precipitation Oct: 
9.09
Percent Precipitation Oct: 
133
Measured Precipitation MTD: 
2.81
Normal Precipitation MTD: 
3.46
Percent Precipitation MTD: 
81
Measured Precipitation YTD: 
28.06
Normal Precipitation YTD: 
34.47
Percent Precipitation YTD: 
81
Today SWE: 
0.00
Tonight SWE: 
0.00
Tomorrow SWE: 
0.00
Today Wind Max 7-9: 
10
Tonight Wind Max 7-9: 
5
Tomorrow Wind Max 7-9: 
10
Today Wind Min 7-9: 
5
Tonight Wind Min 7-9: 
0
Tomorrow Wind Min 7-9: 
5
Today Wind Max 9-11: 
25
Tonight Wind Max 9-11: 
20
Tomorrow Wind Max 9-11: 
25
Today Wind Min 9-11: 
15
Tonight Wind Min 9-11: 
10
Tomorrow Wind Min 9-11: 
15
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: 
39.67
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: 
5:00 AM