Wyoming –
NRCS
Report #8 Weekly Snow Report
January 30, 2023
Good day to all. This is the 8th Snow Report for
Water Year 2023 (2022-2023 snow season). Currently the state’s SNOTELs are
reading 117% of median with a basin high of 159% and a basin low of 76%. Last
year the state was at 99%, and at 80% in 2021. The map may differ slightly from
the table depending upon how many stations were reporting at the time. This
report and a map displaying basin SWE percentages of median for the state may
be found at: http://www.wrds.uwyo.edu/wrds/nrcs/nrcs.html.
For information on the use of median vs. average go to: https://www.nrcs.usda.gov/wps/portal/wcc/home/snowClimateMonitoring/30YearNormals
SNOW
WATER EQUIVALENT AS PERCENT OF MEDIAN. The following table shows the percent of
median for today, the 2 previous weeks, one year ago, and two years ago for
Wyoming basins. Normal (median) is based on all reporting SNOTEL sites in the
basin with calculated medians (newer SNOTEL sites do not have medians figured),
but does not include manually measured snow courses. The statewide SNOTEL
percent of median is a percent of median using all SNOTEL sites in Wyoming with
calculated medians. The weighted state average is figured using the area of
basins (square miles). The reference period for computing medians is the
30-year period 1991 through 2020.
Basin
|
1/30/2023
|
1/23/2023
|
1/16/2023
|
1/30/2022
|
1/30/2021
|
Snake
|
105
|
105
|
116
|
96
|
84
|
Madison
|
127
|
128
|
137
|
97
|
82
|
Yellowstone
|
98
|
96
|
104
|
92
|
93
|
Wind
|
122
|
121
|
128
|
109
|
73
|
Bighorn
|
108
|
94
|
96
|
88
|
76
|
Shoshone
|
93
|
90
|
96
|
91
|
85
|
Powder
|
111
|
103
|
107
|
81
|
74
|
Tongue
|
113
|
88
|
92
|
88
|
90
|
Belle Fourche
|
113
|
103
|
107
|
62
|
70
|
Cheyenne
|
107
|
99
|
101
|
61
|
72
|
Upper North Platte
|
137
|
126
|
132
|
109
|
78
|
Sweetwater
|
158
|
155
|
175
|
98
|
74
|
Lower North Platte
|
128
|
114
|
118
|
79
|
68
|
Laramie
|
122
|
114
|
112
|
108
|
72
|
South Platte
|
76
|
70
|
57
|
60
|
20
|
Little Snake
|
159
|
149
|
161
|
102
|
79
|
Upper Green
|
104
|
101
|
115
|
98
|
77
|
Lower Green
|
146
|
145
|
162
|
107
|
82
|
Upper Bear
|
147
|
145
|
160
|
107
|
73
|
Statewide SNOTEL Percent
of Median
|
117
|
114
|
121
|
99
|
80
|
Weighted State Average
(Area)
|
119
|
112
|
119
|
91
|
75
|
|
|
|
|
|
|
Minimum
|
76
|
70
|
57
|
60
|
20
|
Maximum
|
159
|
155
|
175
|
109
|
93
|
red = down blue
= up green = same
* Basin SWE values, close
to dates of first measurable snowfall
and melt-out, can be irregular or erratic
For more info contact: