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Water Resources Data System
Dept 3943
1000 E. University Ave.
Laramie, WY 82071

wrds@uwyo.edu
Ph (307) 766-6651
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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:

 


Jeff Goats jeff.goats@usda.gov (307) 233-6768


  NRCS Snow Survey

100 East B St., Room 3001

Casper, WY 82601