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Forecast Addendum 1/19/2023 - 07:00am

Submitted by nmeyers on Thu, 01/19/2023 - 5:34am
Recent Observations: 

A smidgen of wintry weather passed over the area yesterday, brining a quarter inch of water and an inch(ish) of new snow. Temperatures were chilly, averaging 17° F. Light snow fell to town. West - northwest wind was evident above treeline, averaging 11 mi/hr, with gusts to 36 mi/hr. Plenty of snow remains available for wind transport. The insane amount of snow from the January parade of storms continues to settle in. About 33 inches of settled snow sits on top of the January 12th meltdown crust. Old avalanche crown lines and huge settlement cracks along ridges and around trees continue to be observed. Southerly wind dominated throughout the storm series and loaded northerly aspects. This week, the weather pattern has shifted to a northerly flow. This has redistributed snow onto southerly aspects. None-the-less, huge cornices remain along ridges facing the north half of the compass. A couple wind slab avalanches have been observed on east and southeast aspects on Ash Creek Butte from the recent round of north wind. A few weak layers (density changes) within the recent storm snow have been observed, but unlikely to fail on a slope scale. All focus has been on freshly formed wind slabs.

 

 

Mountain Weather: 

An upper trough that brought chilly temperatures and a bit of snow to the region yesterday is shifting east. Northerly flow and a colder air mass move in. North wind will blow 30 to 40 mi/hr above treeline today. Wind speeds will be less near and below treeline. The cold air will get along Friday, bringing warmer temps for the weekend. Over the coming days, clear weather will dominate. A few disturbances in the upper level ridge will disrupt the development of a stagnant air pattern, but won't bring any significant weather.

                                       

Today 7-8 Weather : 
Mostly sunny with a blustery north wind this morning, decreasing this afternoon
Today 7-8 Wind Direction: 
N
Today 8-9 Weather: 
Sunny, windy
Today 8-9 Wind Direction: 
N
Tomorrow 7-8 Weather: 
Sunny and clear
Tomorrow 7-8 Wind Direction: 
NE
Tomorrow 8-9 Weather: 
Sunny, windy
Tomorrow 8-9 Wind Direction: 
N
Tonight 7-8 Weather: 
Mostly clear
Tonight 7-8 Wind Direction: 
N
Tonight 8-9 Weather: 
Mostly clear, windy
Tonight 8-9 Wind Direction: 
N
Today 7-8 Temp: 
24
Today 8-9 Temp: 
13
Tomorrow 7-8 Temp: 
31
Tomorrow 8-9 Temp: 
23
Tonight 7-8 Temp: 
113
Tonight 8-9 Temp: 
3
15
15
27
21
116
1
0
19
19
23
21.5
147.9
0
0.12
Grey Butte Temp Cur: 
12.5
Grey Butte Temp Min: 
12.5
Grey Butte Temp Max: 
21
Grey Butte Temp Avg: 
17.5
Grey Butte Wind Cur: 
7
Grey Butte Wind Max: 
17.5
Grey Butte Wind Gust Max: 
36.8
Grey Butte Wind Avg: 
WNW
Castle Lake Temp Cur: 
22
Castle Lake Temp Min: 
21.5
Castle Lake Temp Max: 
28.5
Castle Lake Temp Avg: 
25.5
Mount Eddy Temp Cur: 
16
Mount Eddy Temp Min: 
16
Mount Eddy Temp Max: 
25.5
Mount Eddy Temp Avg: 
21
Mount Eddy Wind Cur: 
0
Mount Eddy Wind Max: 
0
Mount Eddy Wind Gust Max: 
0
Mount Eddy Snow Depth: 
118.2
Mount Eddy Snow New: 
1
Ash Creek Bowl Temp Cur: 
15
Ash Creek Bowl Temp Min: 
15
Ash Creek Bowl Temp Max: 
23
Ash Creek Bowl Temp Avg: 
20
Ash Creek Bowl Snow New: 
1.2
Ash Creek Ridge Temp Cur: 
12
Ash Creek Ridge Temp Min: 
12
Ash Creek Ridge Temp Max: 
20
Ash Creek Ridge Temp Avg: 
17
Ash Creek Ridge Wind Cur: 
0
Ash Creek Ridge Wind Max: 
0
Ash Creek Ridge Wind Gust Max: 
0
Mt. Shasta City Temp Cur: 
28
Mt. Shasta City Temp Min: 
26
Mt. Shasta City Temp Max: 
36
Mt. Shasta City Temp Avg: 
31
Mt. Shasta City Wind Cur: 
5
Mt. Shasta City Wind Min: 
0
Mt. Shasta City Wind Max: 
5
Mt. Shasta City Wind Avg: 
2.5
Sand Flat Comments: 
Not responding
Grey Butte Wind Min: 
3.5
Grey Butte Wind Avg: 
11.5
Caslte Lake Comments: 
snow depth sensor down
Mount Eddy Wind Min: 
0
Mount Eddy Wind Avg: 
0
Ash Creek Ridge Wind Min: 
0
Ash Creek Ridge Wind Avg: 
0
Sand Flat Snow Settlement: 
0
Ski Bowl Snow Settlement: 
0
Mount Eddy Snow Settlement: 
0
Ash Creek Bowl Snow Settlement: 
0
Measured Precipitation Oct: 
25.88
Normal Precipitation Oct: 
15.96
Percent Precipitation Oct: 
162
Measured Precipitation MTD: 
16.75
Normal Precipitation MTD: 
3.72
Percent Precipitation MTD: 
450
Measured Precipitation YTD: 
16.75
Normal Precipitation YTD: 
3.72
Percent Precipitation YTD: 
450
Today SWE: 
0.00
Tonight SWE: 
0.00
Tomorrow SWE: 
0.00
Today Wind Max 7-9: 
15
Tonight Wind Max 7-9: 
10
Tomorrow Wind Max 7-9: 
10
Today Wind Min 7-9: 
5
Tonight Wind Min 7-9: 
5
Tomorrow Wind Min 7-9: 
5
Today Wind Max 9-11: 
35
Tonight Wind Max 9-11: 
40
Tomorrow Wind Max 9-11: 
30
Today Wind Min 9-11: 
25
Tonight Wind Min 9-11: 
30
Tomorrow Wind Min 9-11: 
20
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: 
130
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 PM