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 SUNDAY: JUNE 1 , 1997
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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 .7 .0 * 42.2 27.9 151
COTTONWOOD CREEK 7600 6.5 .0 * 42.7 31.1 137
GRANITE CREEK 6770 2.6 1.7 153* 37.6 29.8 126
GRASSY LAKE 7265 17.5 12.0 146 65.9 46.3 142
GROS VENTRE SUMMIT 8775 4.1 .0 * 24.9 20.1 124
LEWIS LAKE DIVIDE 7860 26.4 19.8 133 67.1 47.1 142
PHILLIPS BENCH 8200 24.0 17.6 136 53.9 37.1 145
SALT RIVER SUMMIT 7600 .0 .0 100* 28.9 21.4 135
SNAKE RIVER STATION 6920 -M .0 * -M 32.5 *
SPRING CREEK DIVIDE 9000 18.3 19.0 96 38.9 33.8 115
THUMB DIVIDE 7980 -M .0 * -M 26.1 *
TOGWOTEE PASS 9580 25.0 23.6 106 42.2 35.3 120
TWO OCEAN PLATEAU 9360 39.7 22.5 176 -M 38.4 *
WILLOW CREEK 8450 19.4 19.2 101 57.4 40.0 144
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Basin wide percent of average 128 136
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 31.2 19.4 161 37.1 25.0 148
BLACK BEAR 7950 -M 27.5 * -M 50.6 *
CANYON 7940 -M 1.4 * 30.7 18.9 162
FISHER CREEK 9100 -M 31.7 * 58.3 47.0 124
MADISON PLATEAU 7750 14.7 7.5 196 47.8 33.3 144
NORTHEAST ENTRANCE 7350 .2 .2 100* 24.5 16.5 148
PARKER PEAK 9400 24.4 18.6 131 30.2 21.5 140
SYLVAN LAKE 8420 11.5 14.1 82 39.3 26.3 149
THUMB DIVIDE 7980 -M .0 * -M 26.1 *
TWO OCEAN PLATEAU 9360 39.7 22.5 176 -M 38.4 *
WHISKEY CREEK 6800 .4 1.2 33* 37.4 27.6 136
WHITE MILL 8700 28.9 19.4 149 38.4 36.6 105
WOLVERINE 7650 .3 .0 * 20.5 18.1 113
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Basin wide percent of average 147* 134
WIND RIVER
BURROUGHS CREEK 8750 2.6 2.0 130 30.2 22.5 134
CHRISTINA LAKE 9980 11.2 9.9 113 29.5 23.5 126
COLD SPRINGS 9630 .2 .3 67* 18.4 16.1 114
HOBBS PARK 10100 12.6 9.3 135 22.0 20.9 105
LITTLE WARM 9620 .3 .7 43* 27.0 19.3 140
SOUTH PASS 9040 -M 10.0 * 31.3 24.0 130
ST. LAWRENCE ALT 8620 .0 .1 0* 18.1 14.8 122
TOGWOTEE PASS 9580 25.0 23.6 106 42.2 35.3 120
TOWNSEND CREEK 8700 .0 1.8 0 20.2 18.6 109
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Basin wide percent of average 109 123
BIGHORN BASIN
BALD MTN. 9375 16.4 18.5 89 24.2 25.3 96
BEAR TRAP MEADOW 7900 .2 .0 * 14.5 13.9 104
BLACKWATER 9780 31.5 18.8 168 35.8 24.0 149
BONE SPRINGS DIV 9350 9.6 8.1 119 22.9 22.2 103
EVENING STAR 9200 31.1 25.5 122 48.5 29.9 162
GRAVE SPRINGS 8550 .1 -M * 15.7 16.2 97
KIRWIN 9550 -M 5.1 * -M 16.2 *
LOST CREEK 8080 -M 5.8 * 21.6 18.8 115
MARQUETTE 8760 .0 4.1 0 18.4 17.3 106
MIDDLE POWDER 7760 .1 2.5 4 20.9 18.2 115
OWL CREEK 8975 .1 .1 100* 11.4 10.7 107
POWDER RIVER PASS 9480 4.2 1.3 323 20.3 18.2 112
SHELL CREEK 9580 11.2 11.2 100 20.4 19.8 103
SYLVAN LAKE 8420 11.5 14.1 82 39.3 26.3 149
SYLVAN ROAD 8120 .2 1.0 20* 31.4 21.8 144
TIMBER CREEK 7950 .3 .2 150* 13.6 13.8 99
YOUNTS PEAK 8350 8.9 9.1 98 32.0 22.3 143
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Basin wide percent of average 109 123
SHOSHONE RIVER
BLACKWATER 9780 31.5 18.8 168 35.8 24.0 149
EVENING STAR 9200 31.1 25.5 122 48.5 29.9 162
KIRWIN 9550 -M 5.1 * -M 16.2 *
MARQUETTE 8760 .0 4.1 0 18.4 17.3 106
SYLVAN LAKE 8420 11.5 14.1 82 39.3 26.3 149
SYLVAN ROAD 8120 .2 1.0 20* 31.4 21.8 144
YOUNTS PEAK 8350 8.9 9.1 98 32.0 22.3 143
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Basin wide percent of average 115 145
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .2 .0 * 14.5 13.9 104
BONE SPRINGS DIV 9350 9.6 8.1 119 22.9 22.2 103
BURGESS JUNCTION 7880 1.9 2.3 83 19.6 17.7 111
CLOUD PEAK RESERVOIR 9860 12.0 8.3 145 23.0 21.3 108
DOME LAKE 8880 -M 3.9 * 21.1 20.2 104
GRAVE SPRINGS 8550 .1 -M * 15.7 16.2 97
HANSEN SAWMILL 8760 .0 .8 0 14.3 13.0 110
LOST CREEK 8080 -M 5.8 * 21.6 18.8 115
MIDDLE POWDER 7760 .1 2.5 4 20.9 18.2 115
POWDER RIVER PASS 9480 4.2 1.3 323 20.3 18.2 112
SUCKER CREEK 8880 7.0 4.0 175 23.7 20.5 116
TIE CREEK 6870 .2 -M * 19.8 17.0 116
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Basin wide percent of average 127 109
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 22.3 18.2 123
NORTH RAPID CREEK 6130 .1 -M * 21.0 -M *
WARREN PEAK 6520 .2 .1 200* 18.2 13.3 137
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Basin wide percent of average 200* 129
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 2.7 0 41.2 30.9 133
DIVIDE PEAK 8800 .0 2.9 0 32.3 30.8 105
ELK RIVER 8700 .0 .2 0* 34.0 24.5 139
JOE WRIGHT 10120 20.6 17.1 120 42.1 34.9 121
NORTH FRENCH CREEK 10100 26.6 20.2 132 39.8 32.3 123
OLD BATTLE 10000 36.6 24.0 153 49.4 39.6 125
SOUTH BRUSH CREEK 8400 .0 1.0 0* 25.5 23.3 109
TOWER 10500 63.6 44.4 143 64.5 49.4 131
WEBBER SPRINGS 9200 12.2 10.3 118 43.8 33.7 130
WILLOW CREEK PASS 9540 7.0 2.2 318 23.5 18.3 128
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Basin wide percent of average 133 125
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 18.2 12.8 142 36.5 27.1 135
CASPER MTN. 7900 2.3 3.5 66 29.0 22.9 127
CHRISTINA LAKE 9980 11.2 9.9 113 29.5 23.5 126
DEADMAN HILL 10220 13.5 10.2 132 27.3 24.6 111
LAPRELE CREEK 8320 .1 1.0 10* 20.8 18.1 115
RENO HILL 8400 4.0 2.9 138 29.1 24.3 120
ROACH 9700 8.1 7.5 108 30.1 30.2 100
SAND LAKE 10080 35.0 24.6 142 39.8 28.4 140
SOUTH PASS 9040 -M 10.0 * 31.3 24.0 130
WINDY PEAK 7840 .3 .0 * 17.6 15.7 112
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Basin wide percent of average 128 122
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .4 .0 * -M 20.9 *
DIVIDE PEAK 8800 .0 2.9 0 32.3 30.8 105
OLD BATTLE 10000 36.6 24.0 153 49.4 39.6 125
SANDSTONE RS 8150 .0 .0 100* 28.5 26.0 110
WHISKEY PARK 8950 31.7 12.0 264 43.7 38.3 114
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Basin wide percent of average 176 114
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .1 .0 * 21.0 20.6 102
BLIND BULL SUM 8650 37.2 16.4 227 39.4 29.5 134
EAST RIM DIVIDE 7930 .0 7.0 0 20.7 19.2 108
ELKHART PARK G.S. 9400 .0 4.4 0 22.5 20.2 111
GROS VENTRE SUMMIT 8775 4.1 .0 * 24.9 20.1 124
KENDALL R.S. 7740 .0 .0 100* 26.7 19.7 136
LOOMIS PARK 8240 -M .0 * 32.0 23.8 134
NEW FORK LAKE 8340 .1 .0 * 16.8 18.3 92
SNIDER BASIN 8250 .0 .0 100* 22.4 19.2 117
SPRING CREEK DIVIDE 9000 18.3 19.0 96 38.9 33.8 115
TRIPLE PEAK 8500 9.4 14.7 64 46.4 38.8 120
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Basin wide percent of average 106* 118
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 20.1 16.9 119
HEWINTA 9500 .0 .0 100* 18.3 19.0 96
HICKERSON PARK 9150 .0 .0 100* 13.6 15.2 89
HOLE-IN-ROCK 9150 .2 .1 200* 14.1 15.2 93
INDIAN CREEK 9425 21.5 17.4 124 38.4 32.3 119
KELLEY R.S. 8180 .3 .0 * 36.7 23.8 154
STEEL CREEK PARK 10100 9.2 12.0 77 21.6 19.8 109
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Basin wide percent of average 105* 114
UPPER BEAR RIVER
BUG LAKE 7950 2.3 2.3 100 35.8 24.9 144
HAYDEN FORK 9400 .5 .0 * 31.5 26.2 120
KELLEY R.S. 8180 .3 .0 * 36.7 23.8 154
LILY LAKE 9050 .1 1.0 10* 25.0 21.1 118
MONTE CRISTO 8960 12.2 9.8 124 41.4 33.7 123
SALT RIVER SUMMIT 7600 .0 .0 100* 28.9 21.4 135
TRIAL LAKE 9960 15.4 12.0 128 40.8 31.7 129
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Basin wide percent of average 120* 131
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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.