Submitted by mmadden on Tue, 12/27/2022 - 4:58am
Recent Observations:
Yesterday, forecasters found more benign conditions than expected from the first of two weather systems (the second of which we're experiencing today). Most of yesterday's forecasted precipitation didn't make it past the coast. Moderate winds with occassional strong gusts were encountered in exposed terrain and along ridges near Casaval Ridge. Conditions near treeline in Avalanche Gulch were quite pleasant with good, supportable skiing being easily found; we had only light winds with occassional moderate gusts. Below treeline, the snow was wet and heavy, making for sticky skiing. A quick hand pit of the upper 25 inches of snowpack found moist snow and variable-size rounded grains.
The freezing level remained quite high yesterday but began to drop last night into today. This will likely result in the initially new snow bonding well to the existing snowpack. Some uncertainty exists as to how well the new snow will stick to the variable crusts near and above treeline. As you enjoy the new snow the next few days, consider submitting a brief observation to the Mt. Shasta Avalanche Center. Even 1-2 sentences go a long way.
Mountain Weather:
There is a HIGH WIND WARNING for exposed areas, with more sheltered areas having a HIGH WIND ADVISORY, until 4:00pm this afternoon (find the difference between a watch, advisory, and warning here). A strong low pressure system off the coast of Washington state is helping drive today's stormy weather. An associated atmospheric river that came onshore last night is bringing the heavy rain, snow, and strong winds. As of 5:00am this morning, the Old Ski Bowl and Gray Butte weather stations report strong winds and over 12 inches of new snow since 7:00pm yesterday. The new snow and wind is expected to remain while the low pressure system moves east. Heavy rain and snow will continue until early this afternoon when it begins to taper off. Tomorrow is forecasted to be windy with only a 30% chance of precipitation.
The Old Ski Bowl and Gray Butte weather stations reporting moderate winds and over 12" of new snow as of 5:00am
Today 7-8 Weather :
Overcast with new snow and wind. Freezing level ~5,600'
Today 7-8 Wind Direction:
SW
Today 8-9 Weather:
Overcast with strong winds and blowing snow. Snowfall could be heavy at times.
Today 8-9 Wind Direction:
SW
Tomorrow 7-8 Weather:
Mostly cloudy with a 30% chance of snow. Freezing level ~3,100'
Tomorrow 7-8 Wind Direction:
SW
Tomorrow 8-9 Weather:
Mostly cloudy with a 30% chance of snow.
Tomorrow 8-9 Wind Direction:
SW
Tonight 7-8 Weather:
Overcast, windy, with new snow likely. Freezing level ~3,600'
Tonight 7-8 Wind Direction:
SW
Tonight 8-9 Weather:
Overcast, windy, with new snow likely.
Tonight 8-9 Wind Direction:
W
30
30
42
35
28
27
40
33
60.36
11.8
1.59
Grey Butte Temp Cur:
26.5
Grey Butte Temp Avg:
31.5
Grey Butte Wind Cur:
28.5
Grey Butte Wind Max:
28.5
Grey Butte Wind Gust Max:
55.2
Castle Lake Temp Cur:
33.5
Mount Eddy Temp Min:
30.5
Mount Eddy Temp Max:
37.5
Mount Eddy Wind Gust Max:
9.64
Mount Eddy Snow Depth:
38.11
Ash Creek Bowl Temp Cur:
29
Ash Creek Bowl Temp Min:
29
Ash Creek Bowl Temp Max:
43
Ash Creek Bowl Temp Avg:
33.5
Ash Creek Bowl Snow New:
129.2
Ash Creek Ridge Temp Cur:
26
Ash Creek Ridge Temp Min:
25.5
Ash Creek Ridge Temp Max:
39
Ash Creek Ridge Temp Avg:
30
Ash Creek Ridge Wind Cur:
0
Ash Creek Ridge Wind Max:
38.5
Ash Creek Ridge Wind Gust Max:
59.66
Ash Creek Ridge Wind Avg:
S
Mt. Shasta City Temp Cur:
41
Mt. Shasta City Temp Min:
36
Mt. Shasta City Temp Max:
51
Mt. Shasta City Temp Avg:
44
Mt. Shasta City Wind Cur:
4
Mt. Shasta City Wind Min:
0
Mt. Shasta City Wind Max:
9
Mt. Shasta City Wind Avg:
4
Mt. Shasta City Wind Avg:
ESE
Grey Butte Wind Avg:
17.5
Ash Creek Ridge Wind Min:
0
Ash Creek Ridge Wind Avg:
15
Ski Bowl Snow Settlement:
0
Mount Eddy Snow Settlement:
0
Ash Creek Bowl Snow Settlement:
0
Measured Precipitation Oct:
6.96
Normal Precipitation Oct:
11.22
Percent Precipitation Oct:
62
Measured Precipitation MTD:
3.63
Normal Precipitation MTD:
5.59
Percent Precipitation MTD:
65
Measured Precipitation YTD:
14.91
Normal Precipitation YTD:
36.6
Percent Precipitation YTD:
41
Tomorrow Wind Max 7-9:
15
Tonight Wind Max 9-11:
40
Tomorrow Wind Max 9-11:
20
Tonight Wind Min 9-11:
30
Tomorrow Wind Min 9-11:
10
Tonight Snow Max 7-9:
2.00
Tomorrow Snow Max 7-9:
0.50
Tonight Snow Min 7-9:
0.00
Tomorrow Snow Min 7-9:
0.00
Today Snow Max 9-11:
8.00
Tonight Snow Max 9-11:
3.00
Tomorrow Snow Max 9-11:
0.50
Today Snow Min 9-11:
4.00
Tonight Snow Min 9-11:
0.00
Tomorrow Snow Min 9-11:
0.00
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
