Wyoming Snow Precipitation Update
United States Natural Resources Water and Climate Center
Department of Conservation Portland, Oregon
Agriculture Service
S N O W - P R E C I P I T A T I O N U P D A T E
Based on Mountain Data from NRCS SNOTEL Sites
As of TUESDAY: JUNE 1 , 1999
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 .0 .0 100* 31.7 27.9 114
COTTONWOOD CREEK 7600 8.9 .0 * 37.5 31.2 121
GRANITE CREEK 6770 1.4 1.7 83* 28.5 29.9 96
GRASSY LAKE 7265 23.5 12.0 196 51.5 46.3 112
GROS VENTRE SUMMIT 8775 7.3 .0 * 20.9 20.2 104
LEWIS LAKE DIVIDE 7860 27.2 19.9 137 47.8 47.3 102
PHILLIPS BENCH 8200 20.9 17.7 118 38.4 37.3 104
SALT RIVER SUMMIT 7600 .3 .0 * 23.7 21.4 111
SNAKE RIVER STATION 6920 .0 .0 100* 32.0 32.5 99
SPRING CREEK DIVIDE 9000 24.9 19.0 131 37.0 33.8 110
THUMB DIVIDE 7980 3.8 .0 * 29.2 26.2 112
TOGWOTEE PASS 9580 -M 23.7 * 36.8 35.3 104
TWO OCEAN PLATEAU 9360 34.7 22.5 154 38.7 38.4 101
WILLOW CREEK 8450 17.9 19.2 93 50.8 40.0 127
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Basin wide percent of average 134* 108
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 22.9 19.4 119 29.0 25.0 117
BLACK BEAR 7950 49.9 27.5 182 62.3 50.8 123
CANYON 7940 1.4 1.4 100 23.9 18.9 127
FISHER CREEK 9100 37.4 31.7 118 45.4 47.0 97
MADISON PLATEAU 7750 -M 7.5 * 40.7 33.3 122
NORTHEAST ENTRANCE 7350 .2 .3 34* 18.9 16.5 115
PARKER PEAK 9400 17.7 18.7 95 -M 21.5 *
SYLVAN LAKE 8420 -M 14.1 * 37.4 26.4 142
THUMB DIVIDE 7980 3.8 .0 * 29.2 26.2 112
TWO OCEAN PLATEAU 9360 34.7 22.5 154 38.7 38.4 101
WHISKEY CREEK 6800 6.0 1.2 501* 31.5 27.7 114
WHITE MILL 8700 25.2 19.4 130 31.5 36.8 86
WOLVERINE 7650 .0 .0 100* 16.5 18.2 91
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Basin wide percent of average 138 111
WIND RIVER
BURROUGHS CREEK 8750 10.1 2.0 505 25.2 22.5 113
COLD SPRINGS 9630 8.9 .3 2934* 25.9 16.2 160
DEER PARK 9700 19.7 -M * 34.3 -M *
HOBBS PARK 10100 21.7 9.5 231 30.7 20.9 147
LITTLE WARM 9620 8.6 .7 1229* 26.4 19.4 136
SOUTH PASS 9040 14.6 10.0 146 31.4 24.0 131
ST. LAWRENCE ALT 8620 .0 .3 0* 22.4 15.0 151
TOGWOTEE PASS 9580 -M 23.7 * 36.8 35.3 104
TOWNSEND CREEK 8700 4.8 1.9 248 26.9 18.7 144
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Basin wide percent of average 280* 132
BIGHORN BASIN
BALD MTN. 9375 21.5 18.5 117 26.9 25.4 106
BEAR TRAP MEADOW 7900 .0 .0 100* 19.2 14.0 138
BLACKWATER 9780 31.2 18.9 165 32.3 24.0 135
BONE SPRINGS DIV 9350 16.0 8.1 198 26.9 22.2 122
EVENING STAR 9200 30.9 25.5 122 42.7 29.9 143
GRAVE SPRINGS 8550 .0 2.0 0 19.9 16.2 123
KIRWIN 9550 12.0 5.1 236 23.2 16.2 143
MARQUETTE 8760 13.2 4.1 322 22.7 17.4 131
MIDDLE POWDER 7760 3.8 2.5 153 23.2 18.2 127
OWL CREEK 8975 .5 .3 200* 17.4 10.7 162
POWDER RIVER PASS 9480 3.5 1.4 251 23.5 18.2 130
SHELL CREEK 9580 12.2 11.2 109 21.9 19.9 111
SYLVAN LAKE 8420 -M 14.1 * 37.4 26.4 142
SYLVAN ROAD 8120 .0 1.0 0* 23.9 21.9 109
TIMBER CREEK 7950 2.2 .3 701* 19.7 14.0 142
YOUNTS PEAK 8350 14.2 9.1 157 23.9 22.4 107
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Basin wide percent of average 150 128
SHOSHONE RIVER
BLACKWATER 9780 31.2 18.9 165 32.3 24.0 135
EVENING STAR 9200 30.9 25.5 122 42.7 29.9 143
KIRWIN 9550 12.0 5.1 236 23.2 16.2 143
MARQUETTE 8760 13.2 4.1 322 22.7 17.4 131
SYLVAN LAKE 8420 -M 14.1 * 37.4 26.4 142
SYLVAN ROAD 8120 .0 1.0 0* 23.9 21.9 109
YOUNTS PEAK 8350 14.2 9.1 157 23.9 22.4 107
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Basin wide percent of average 160 131
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 19.2 14.0 138
BIG GOOSE 7990 -M -M * 20.0 -M *
BONE SPRINGS DIV 9350 16.0 8.1 198 26.9 22.2 122
BURGESS JUNCTION 7880 2.8 2.3 122 19.2 17.7 109
CLOUD PEAK RESERVOIR 9860 15.2 8.5 181 26.5 21.4 124
DOME LAKE 8880 -M 3.9 * 18.7 20.2 93
GRAVE SPRINGS 8550 .0 2.0 0 19.9 16.2 123
HANSEN SAWMILL 8760 .0 .0 0 18.4 13.0 141
MIDDLE POWDER 7760 3.8 2.5 153 23.2 18.2 127
POWDER RIVER PASS 9480 3.5 1.4 251 23.5 18.2 130
SUCKER CREEK 8880 6.3 4.0 158 23.7 20.5 116
TIE CREEK 6870 .0 -M * 19.9 17.0 118
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Basin wide percent of average 161 121
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 21.7 18.2 119
NORTH RAPID CREEK 6130 .0 -M * 18.9 -M *
WARREN PEAK 6520 .0 .3 0* -M 13.5 *
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Basin wide percent of average 0* 119*
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 2.8 0 30.7 30.9 100
DIVIDE PEAK 8800 .5 2.9 18 33.0 30.9 107
ELK RIVER 8700 .0 .3 0* 31.0 24.5 127
JOE WRIGHT 10120 16.7 17.2 97 35.8 34.9 103
NORTH FRENCH CREEK 10100 33.3 20.2 165 40.5 32.3 126
OLD BATTLE 10000 32.4 24.0 136 49.8 39.8 126
SOUTH BRUSH CREEK 8400 7.0 1.0 691* 27.7 23.4 118
TOWER 10500 44.8 44.4 101 51.8 49.4 105
WEBBER SPRINGS 9200 5.3 10.5 51 36.3 33.8 108
WILLOW CREEK PASS 9540 3.2 2.3 135 18.2 18.4 99
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Basin wide percent of average 114 112
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 17.5 13.0 136 34.4 27.2 127
CASPER MTN. 7900 .3 3.5 6 24.7 22.9 108
DEADMAN HILL 10220 12.7 10.2 125 26.0 24.7 106
DEER PARK 9700 19.7 -M * 34.3 -M *
LAPRELE CREEK 8320 .0 1.0 0* 23.4 18.2 129
RENO HILL 8400 .0 2.9 0 27.7 24.4 114
ROACH 9700 -M 7.5 * 27.5 30.2 92
SAND LAKE 10080 46.3 24.7 188 40.3 28.4 142
SOUTH PASS 9040 14.6 10.0 146 31.4 24.0 131
WINDY PEAK 7840 .0 .0 100* 20.4 15.7 130
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Basin wide percent of average 140 119
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 24.0 20.9 115
DIVIDE PEAK 8800 .5 2.9 18 33.0 30.9 107
OLD BATTLE 10000 32.4 24.0 136 49.8 39.8 126
SANDSTONE RS 8150 .0 .0 100* 27.4 26.0 106
WHISKEY PARK 8950 26.5 12.0 221 40.2 38.3 105
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Basin wide percent of average 153 112
UPPER GREEN RIVER
BIG SANDY OPENING 9100 1.4 .0 * 20.4 20.7 99
BLIND BULL SUM 8650 27.9 16.4 171 29.4 29.5 100
EAST RIM DIVIDE 7930 4.8 7.0 68 18.9 19.2 98
ELKHART PARK G.S. 9400 5.0 4.5 109 21.0 20.2 104
GROS VENTRE SUMMIT 8775 7.3 .0 * 20.9 20.2 104
KENDALL R.S. 7740 .2 .0 * 20.9 19.7 107
LOOMIS PARK 8240 -M .0 * 25.7 23.9 108
NEW FORK LAKE 8340 .0 .0 100* 17.9 18.4 97
SNIDER BASIN 8250 .5 .0 * 23.4 19.2 122
SPRING CREEK DIVIDE 9000 24.9 19.0 131 37.0 33.8 110
TRIPLE PEAK 8500 14.6 14.7 100 39.8 38.8 103
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Basin wide percent of average 125* 105
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 19.2 16.9 114
HEWINTA 9500 .0 .0 100* 20.9 19.0 111
HICKERSON PARK 9150 .2 .0 * 16.0 15.2 106
HOLE-IN-ROCK 9150 .0 .3 0* 16.2 15.2 106
INDIAN CREEK 9425 26.7 17.4 154 35.3 32.3 110
KELLEY R.S. 8180 .7 .0 * 25.4 23.9 106
STEEL CREEK PARK 10100 16.5 12.0 138 24.9 19.9 126
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Basin wide percent of average 146* 111
UPPER BEAR RIVER
BUG LAKE 7950 5.0 2.3 214 30.0 24.9 121
HAYDEN FORK 9400 .3 .0 * 29.7 26.2 113
KELLEY R.S. 8180 .7 .0 * 25.4 23.9 106
LILY LAKE 9050 .7 1.0 70* 26.4 21.2 125
MONTE CRISTO 8960 23.0 10.0 233 38.8 33.8 115
SALT RIVER SUMMIT 7600 .3 .0 * 23.7 21.4 111
TRIAL LAKE 9960 15.5 12.0 130 32.4 31.7 103
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Basin wide percent of average 175* 113
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-M = Missing data
* = Data may not provide a valid measure of conditions.
If the Basin wide percent of average value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Average represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the average value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the average value for those sites on this day.
Contact your state water supply staff for assistance.
Reference period for average conditions is 1961-90.
Provisional data, subject to revision.
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and
Total Precipitation values
If the Basin Index (%) value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Median represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Average value for those sites on this day.
Contact your state water supply staff for assistance.
Medians and averages are calculated for the period 1981-2010.
Provisional data, subject to revision.
* Site -- Either: (a) the current value is missing; (b) the median or
average for the day is not available or is zero; or (c) for snow water
equivalent, the median for the day is less than 10% of the maximum
median value for the year.
* Basin - More than half of the sites within the basin are flagged with *,
preventing the calculation of a meaningful basin index.
The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians (for snow water equivalent)
or averages (for precipitation) and the resulting fraction multiplied by 100.