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

wrds@uwyo.edu
Ph (307) 766-6651
Fax (307) 766-3785

At 2:58p, 5/24/18
Temperature 72.5°F
Wind 8.0 mph


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WYOMING

Wyoming – NRCS

Report #26                              Weekly Snow Report                        May 21, 2018

 

A good day to everyone! This is the 26th Snow Report for Water Year 2018 (2017-2018 snow season).  Currently the state’s SNOTELs are reading 90% of median with a basin high of 141% and a basin low of 5% (Belle Fourche & Cheyenne are melted out, normal for the date).  Last year at this time the state was at 165%, and at 93% in 2016.  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.  The westwide map is provided for reference.

For information on the use of median vs. average go to http://www.wcc.nrcs.usda.gov/normals/median_average.htm

 

Figure 1 -- 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 1981-2010.

Basin

5/21/2018

5/14/2018

5/7/2018

5/21/2017

5/21/2016

Snake

111

109

117

170

62

Madison

131

127

133

144

44

Yellowstone

138

141

158

158

59

Wind

107

105

105

292

151

Bighorn

97

97

115

132

72

Shoshone

141

139

148

132

66

Powder

68

62

101

148

72

Tongue

56

76

93

153

77

Belle Fourche

melted out

melted out

melted out

 

 

Cheyenne

melted out

melted out

melted out

 

 

Upper North Platte

64

63

78

99

128

Sweetwater

39

51

55

325

154

Lower North Platte

5

2

21

105

339

Laramie

46

67

92

87

158

South Platte

55

79

108

113

131

Little Snake

32

40

54

97

157

Upper Green

106

94

96

247

88

Lower Green

63

61

69

178

113

Upper Bear

21

20

44

245

69

Statewide SNOTEL Percent of Median

90

90

104

165

93

Weighted State Average (Area)

65

66

79

147

113

 

red = down                   blue = up                    green = same       * data is suspect

 

 

 

For more info contact: 

 


Ken Von Buettner  

kenneth.vonbuettner@wy.usda.gov 

(307) 233-6743  

 

NRCS Snow Survey

100 East B St., Room 3124 

Casper, WY 82601