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Water Resources Data System
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Wyoming – NRCS

Report #11                                   Weekly Snow Report                             Feb 26, 2024

 

Good day to all. This is the 11th Snow Report for Water Year 2024 (2023-2024 snow season). Currently the state’s SNOTELs are reading 88% of median with a basin high of 110% and a basin low of 42%. Last year the state was at 115%, and at 85% in 2022. 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 http://www.wcc.nrcs.usda.gov/normals/median_average.htm

 

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 calculated by averaging medians for all stations associated with Wyoming basins. 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

2/26/2024

2/19/2024

2/12/2024

2/26/2023

2/26/2022

Snake

87

89

82

104

80

Madison

75

76

76

116

82

Yellowstone

69

68

63

102

84

Wind

98

102

97

113

95

Bighorn

77

86

82

110

85

Shoshone

83

83

76

100

85

Powder

57

64

62

119

80

Tongue

61

70

65

118

87

Belle Fourche

59

62

57

123

71

Cheyenne

61

66

60

111

70

Upper North Platte

96

91

86

123

91

Sweetwater

98

103

90

125

82

Lower North Platte

75

73

69

136

81

Laramie

86

81

76

116

96

South Platte

42

42

37

78

69

Little Snake

108

99

94

146

87

Upper Green

85

87

78

99

80

Lower Green

107

106

106

128

88

Upper Bear

110

106

103

127

82

Statewide SNOTEL Percent of Median

88

88

83

115

85

Weighted State Average (Area)

81

83

78

117

83

Minimum

42

42

37

78

69

Maximum

110

106

106

146

96

 

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 Coyle Jeffrey.Coyle@usda.gov

(307) 233-6787


NRCS Snow Survey

100 East B St., Room 3124

Casper, WY 82601