Wyoming – NRCS

Report #16 Weekly Snow Report Mar 23, 2020

Good day to all. This is the 16^th Snow Report for Water Year 2020 (2019-2020 snow season). Currently the state’s SNOTELs are reading 111% of median with a basin high of 123% and a basin low of 76%. Last year the state was at 108%, and at 111% in 2018. 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 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 1981 through 2010.

Basin	3/23/2020	3/16/2020	3/9/2020	3/23/2019	3/23/2018
Snake	109	109	105	114	119
Madison	99	100	93	128	123
Yellowstone	114	115	110	113	162
Wind	100	104	103	104	117
Bighorn	121	125	124	97	125
Shoshone	107	110	107	109	149
Powder	119	127	129	96	114
Tongue	118	122	121	87	99
Belle Fourche	90	99	107	127	99
Cheyenne	100	105	112	121	97
Upper North Platte	115	114	113	127	85
Sweetwater	76	71	81	106	81
Lower North Platte	123	129	133	133	65
Laramie	123	123	121	130	101
South Platte	118	114	114	124	99
Little Snake	118	118	118	130	78
Upper Green	102	103	102	103	117
Lower Green	113	113	115	104	89
Upper Bear	101	102	105	114	82
Statewide SNOTEL Percent of Median	111	113	111	108	111
Weighted State Average (Area)	111	113	114	112	104
Max	123	129	133	133	162
Min	76	71	81	87	65

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

Wyoming – NRCS

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