You are here

Forecast Addendum - 12/23/2021 - 07:00am

Submitted by abeverly on Thu, 12/23/2021 - 6:44am
Recent Observations: 

Since 2 p.m. Tuesday, Mount Shasta has received 13 inches of snow; in the Eddies 9-10. Strong southwest winds have dominated over the last 24 hours. Gusts reached 49 mi/hr. Temperatures have been hovering in the mid-twenties.

New snow sits atop a thin, breakable crust near and below treeline. Above treeline, snow surfaces were scoured, chalky, and wind-textured before the storm. See the photo below of Avalanche Gulch as the storm was coming in.

Avalanche Gulch Before the Storm

Mountain Weather: 

.A winter weather advisory is in effect from 4 p.m. this afternoon to 4 a.m. Friday above 4,000 ft.

Low pressure in the northwest corner of the country will continue to bring daily doses of precipitation and snow levels at 4,000 ft or below. Accumulation today looks to be 1-4 inches. South to southwest winds will range from light to gale force as you gain elevation. Be prepared for low wind chills.

Next week looks to be downright cold.

Today 7-8 Weather : 
Snow before 10 a.m., then snow showers likely after 10 a.m. Breezy. Chance of precipitation is 100%.
Today 7-8 Wind Direction: 
S
Today 8-9 Weather: 
Snow before 11 a.m., then snow showers likely after 11 a.m. Windy. Low wind chills. Chance of precipitation is 100%.
Today 8-9 Wind Direction: 
SW
Tomorrow 7-8 Weather: 
Snow likely, mainly between 10 a.m. and 4 p.m., then snow showers after 4 p.m. Breezy. Chance of precipitation is 80%.
Tomorrow 7-8 Wind Direction: 
SW
Tomorrow 8-9 Weather: 
Snow likely, mainly between 11 a.m. and 5 p.m., then snow showers after 5 p.m. Windy. Low wind chills. Chance of precipitation is 80%.
Tomorrow 8-9 Wind Direction: 
W
Tonight 7-8 Weather: 
Snow showers likely, mainly before 10 p.m. Mostly cloudy. Breezy.
Tonight 7-8 Wind Direction: 
SW
Tonight 8-9 Weather: 
Snow showers likely, mainly before 5 a.m. Mostly cloudy. Windy. Chance of precipitation is 70%.
Tonight 8-9 Wind Direction: 
SW
Today 7-8 Temp: 
27
Today 8-9 Temp: 
19
Tomorrow 7-8 Temp: 
25
Tomorrow 8-9 Temp: 
15
Tonight 7-8 Temp: 
17
Tonight 8-9 Temp: 
14
28
26
30
28
25
22
26.5
24
65.14
13.6
0.54
Grey Butte Temp Cur: 
23.5
Grey Butte Temp Min: 
20.5
Grey Butte Temp Max: 
25.5
Grey Butte Temp Avg: 
23
Grey Butte Wind Cur: 
17
Grey Butte Wind Max: 
27
Grey Butte Wind Avg: 
SW
Castle Lake Temp Cur: 
28.5
Castle Lake Temp Min: 
26
Castle Lake Temp Max: 
28.5
Castle Lake Temp Avg: 
27.5
Castle Lake Snow Depth: 
39
Castle Lake Snow New: 
7.3
Mount Eddy Temp Cur: 
28.5
Mount Eddy Temp Min: 
24
Mount Eddy Temp Max: 
28.5
Mount Eddy Temp Avg: 
26.5
Mount Eddy Wind Cur: 
0
Mount Eddy Wind Max: 
1.5
Mount Eddy Snow Depth: 
42.99
Mount Eddy Snow New: 
8.3
Ash Creek Bowl Temp Cur: 
25.5
Ash Creek Bowl Temp Min: 
23
Ash Creek Bowl Temp Max: 
26
Ash Creek Bowl Temp Avg: 
24.5
Ash Creek Bowl Snow New: 
6.5
Ash Creek Ridge Temp Cur: 
22.5
Ash Creek Ridge Temp Min: 
19.5
Ash Creek Ridge Temp Max: 
23.5
Ash Creek Ridge Temp Avg: 
21.5
Ash Creek Ridge Wind Cur: 
0
Ash Creek Ridge Wind Max: 
0
Mt. Shasta City Temp Cur: 
32
Mt. Shasta City Temp Min: 
32
Mt. Shasta City Temp Max: 
36
Mt. Shasta City Temp Avg: 
34.5
Mt. Shasta City Wind Cur: 
0
Mt. Shasta City Wind Min: 
0
Mt. Shasta City Wind Max: 
9
Mt. Shasta City Wind Avg: 
ESE
Sand Flat Comments: 
State owned station, down
Grey Butte Wind Min: 
9.5
Mount Eddy Wind Min: 
0
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: 
12.85
Normal Precipitation Oct: 
10.37
Percent Precipitation Oct: 
124
Measured Precipitation MTD: 
3.55
Normal Precipitation MTD: 
4.74
Percent Precipitation MTD: 
75
Measured Precipitation YTD: 
28.8
Normal Precipitation YTD: 
35.75
Percent Precipitation YTD: 
81
Today SWE: 
0.17
Tonight SWE: 
0.01
Tomorrow SWE: 
0.28
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: 
40
Tonight Wind Max 9-11: 
40
Tomorrow Wind Max 9-11: 
40
Today Wind Min 9-11: 
30
Tonight Wind Min 9-11: 
30
Tomorrow Wind Min 9-11: 
30
Today Snow Max 7-9: 
2.00
Tonight Snow Max 7-9: 
0.50
Tomorrow Snow Max 7-9: 
4.00
Today Snow Min 7-9: 
1.00
Tonight Snow Min 7-9: 
0.00
Tomorrow Snow Min 7-9: 
1.00
Today Snow Max 9-11: 
3.00
Tonight Snow Max 9-11: 
0.50
Tomorrow Snow Max 9-11: 
5.00
Today Snow Min 9-11: 
2.00
Tonight Snow Min 9-11: 
0.00
Tomorrow Snow Min 9-11: 
2.00
Ash Creek Bowl HS: 
43.07
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: 
6:00 AM