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: NOVEMBER 4 , 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 .4 1.0 40* 2.6 2.5 104
COTTONWOOD CREEK 7600 1.2 1.1 109* 3.0 2.7 111
GRANITE CREEK 6770 .3 .9 33* 2.3 2.8 82
GRASSY LAKE 7265 2.0 1.6 125* 3.9 4.0 98
GROS VENTRE SUMMIT 8775 -M 1.4 * 1.5 1.9 79
LEWIS LAKE DIVIDE 7860 2.0 1.9 105* 3.7 4.1 90
PHILLIPS BENCH 8200 1.5 1.6 94* 2.5 3.2 78
SALT RIVER SUMMIT 7600 .4 .2 200* 2.3 2.0 115
SNAKE RIVER STATION 6920 -M .9 * -M 2.8 *
SPRING CREEK DIVIDE 9000 1.4 1.9 74* 2.2 2.6 85
THUMB DIVIDE 7980 -M .8 * -M 2.3 *
TOGWOTEE PASS 9580 3.2 2.7 119* 3.1 3.0 103
TWO OCEAN PLATEAU 9360 4.7 3.9 121 4.8 3.4 141
WILLOW CREEK 8450 1.2 1.7 71* 4.2 3.4 124
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Basin wide percent of average 99* 101
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.9 3.4 115 3.3 2.2 150
BLACK BEAR 7950 3.8 3.3 115* 4.6 4.1 112
CANYON 7940 1.7 1.0 170* 3.2 2.1 152
FISHER CREEK 9100 5.3 3.2 166* 5.2 3.6 144
MADISON PLATEAU 7750 1.9 1.8 106* 3.4 2.9 117
NORTHEAST ENTRANCE 7350 .2 .5 40* 3.5 1.7 206
PARKER PEAK 9400 3.5 4.1 85 3.5 2.5 140
SYLVAN LAKE 8420 2.7 2.9 93 4.6 3.0 153
THUMB DIVIDE 7980 -M .8 * -M 2.3 *
TWO OCEAN PLATEAU 9360 4.7 3.9 121 4.8 3.4 141
WHISKEY CREEK 6800 .9 1.0 90* 2.7 2.5 108
WHITE MILL 8700 4.9 2.3 213* 5.1 3.2 159
WOLVERINE 7650 .3 .5 60* 2.4 1.9 126
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Basin wide percent of average 121* 140
WIND RIVER
BURROUGHS CREEK 8750 2.1 1.2 175* 2.5 2.0 125
COLD SPRINGS 9630 2.0 1.1 182 2.7 2.1 129
DEER PARK 9700 .0 -M * .0 -M *
HOBBS PARK 10100 2.9 2.4 121 3.2 2.2 145
LITTLE WARM 9620 1.5 1.2 125* 2.8 2.1 133
SOUTH PASS 9040 2.5 2.9 86 3.6 2.5 144
ST. LAWRENCE ALT 8620 2.2 .9 244 2.9 1.9 153
TOGWOTEE PASS 9580 3.2 2.7 119* 3.1 3.0 103
TOWNSEND CREEK 8700 1.9 1.2 158 3.6 2.1 171
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Basin wide percent of average 135 136
BIGHORN BASIN
BALD MTN. 9375 4.6 2.9 159 4.4 2.6 169
BEAR TRAP MEADOW 7900 .8 .8 100 1.7 1.8 94
BLACKWATER 9780 4.5 2.9 155 3.8 2.7 141
BONE SPRINGS DIV 9350 3.9 2.9 134 4.4 2.4 183
EVENING STAR 9200 4.2 4.3 98 5.6 3.3 170
GRAVE SPRINGS 8550 1.3 -M * 2.2 2.1 105
KIRWIN 9550 2.8 1.7 165 3.2 1.8 178
LOST CREEK 8080 -M 1.5 * -M 2.2 *
MARQUETTE 8760 3.9 1.1 355 4.4 2.0 220
MIDDLE POWDER 7760 .9 1.6 56 1.9 2.3 83
OWL CREEK 8975 1.7 .6 283 2.1 1.1 191
POWDER RIVER PASS 9480 1.2 1.4 86 2.2 2.1 105
SHELL CREEK 9580 3.3 2.7 122 2.5 2.1 119
SYLVAN LAKE 8420 2.7 2.9 93 4.6 3.0 153
SYLVAN ROAD 8120 .5 1.8 28 3.3 2.5 132
TIMBER CREEK 7950 2.3 .4 575* 3.2 1.4 229
YOUNTS PEAK 8350 2.9 2.6 112 3.2 2.2 145
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Basin wide percent of average 131 149
SHOSHONE RIVER
BLACKWATER 9780 4.5 2.9 155 3.8 2.7 141
EVENING STAR 9200 4.2 4.3 98 5.6 3.3 170
KIRWIN 9550 2.8 1.7 165 3.2 1.8 178
MARQUETTE 8760 3.9 1.1 355 4.4 2.0 220
SYLVAN LAKE 8420 2.7 2.9 93 4.6 3.0 153
SYLVAN ROAD 8120 .5 1.8 28 3.3 2.5 132
YOUNTS PEAK 8350 2.9 2.6 112 3.2 2.2 145
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Basin wide percent of average 124 161
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .8 .8 100 1.7 1.8 94
BONE SPRINGS DIV 9350 3.9 2.9 134 4.4 2.4 183
BURGESS JUNCTION 7880 1.5 1.8 83 3.0 2.2 136
CLOUD PEAK RESERVOIR 9860 1.8 1.5 120* 3.8 2.3 165
DOME LAKE 8880 2.6 2.1 124 3.7 2.5 148
GRAVE SPRINGS 8550 1.3 -M * 2.2 2.1 105
HANSEN SAWMILL 8760 1.2 .9 133 2.3 1.7 135
LOST CREEK 8080 -M 1.5 * -M 2.2 *
MIDDLE POWDER 7760 .9 1.6 56 1.9 2.3 83
POWDER RIVER PASS 9480 1.2 1.4 86 2.2 2.1 105
SUCKER CREEK 8880 2.3 1.4 164* -M 2.4 *
TIE CREEK 6870 1.3 -M * 3.5 2.1 167
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Basin wide percent of average 113 133
BELLE FOURCHE
BLIND PARK 6890 1.0 1.8 56 2.5 1.9 132
NORTH RAPID CREEK 6130 .8 -M * 1.7 -M *
WARREN PEAK 6520 .4 1.8 22 2.4 1.5 160
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Basin wide percent of average 39 144
UPPER N. PLATTE RIVER
COLUMBINE 9400 1.4 1.9 74* 4.0 2.9 138
DIVIDE PEAK 8800 2.2 2.5 88 3.5 3.5 100
ELK RIVER 8700 .2 .7 29* 3.4 2.6 131
JOE WRIGHT 10120 3.0 3.5 86 4.9 3.9 126
NORTH FRENCH CREEK 10100 2.7 2.7 100* 4.2 2.7 156
OLD BATTLE 10000 3.2 4.1 78 5.1 3.8 134
SOUTH BRUSH CREEK 8400 .4 .6 67* 2.0 2.6 77
TOWER 10500 5.6 6.8 82 5.9 4.6 128
WEBBER SPRINGS 9200 1.5 2.4 63* 4.2 3.6 117
WILLOW CREEK PASS 9540 2.0 1.3 154* 2.5 2.0 125
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Basin wide percent of average 84* 123
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.8 2.4 75* 3.3 2.7 122
CASPER MTN. 7900 2.8 1.6 175* 3.2 2.8 114
DEADMAN HILL 10220 3.9 1.7 229* 3.3 2.7 122
DEER PARK 9700 .0 -M * .0 -M *
LAPRELE CREEK 8320 1.3 1.1 118 2.3 1.7 135
RENO HILL 8400 2.0 1.9 105 2.3 2.9 79
ROACH 9700 1.8 1.7 106* 3.2 3.1 103
SAND LAKE 10080 4.4 3.7 119 4.9 2.9 169
SOUTH PASS 9040 2.5 2.9 86 3.6 2.5 144
WINDY PEAK 7840 .9 .4 225* 2.1 1.4 150
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Basin wide percent of average 123* 124
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .6 0* 3.2 2.1 152
DIVIDE PEAK 8800 2.2 2.5 88 3.5 3.5 100
OLD BATTLE 10000 3.2 4.1 78 5.1 3.8 134
SANDSTONE RS 8150 .1 1.0 10* 3.2 2.1 152
WHISKEY PARK 8950 1.5 2.8 54* 4.1 2.3 178
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Basin wide percent of average 64* 138
UPPER GREEN RIVER
BIG SANDY OPENING 9100 1.7 1.0 170* 2.9 1.9 153
BLIND BULL SUM 8650 1.8 2.8 64* 2.1 2.4 88
EAST RIM DIVIDE 7930 .9 .6 150* .9 1.8 50
ELKHART PARK G.S. 9400 1.5 1.2 125* 2.2 1.9 116
GROS VENTRE SUMMIT 8775 -M 1.4 * 1.5 1.9 79
KENDALL R.S. 7740 1.2 .3 400* 2.4 1.8 133
LOOMIS PARK 8240 1.1 .8 138* 1.7 2.2 77
NEW FORK LAKE 8340 1.3 .2 650* 1.7 1.7 100
SNIDER BASIN 8250 .0 .3 0* 1.2 1.8 67
SPRING CREEK DIVIDE 9000 1.4 1.9 74* 2.2 2.6 85
TRIPLE PEAK 8500 2.2 1.5 147* 2.6 3.4 76
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Basin wide percent of average 124* 91
LOWER GREEN RIVER
HAMS FORK 7840 .1 .2 50* 1.0 1.6 62
HEWINTA 9500 .6 .4 150* 3.7 2.6 142
HICKERSON PARK 9150 2.8 .4 700* 3.8 2.3 165
HOLE-IN-ROCK 9150 1.2 .3 400* 3.3 2.3 143
INDIAN CREEK 9425 1.8 2.2 82* 1.7 2.8 61
KELLEY R.S. 8180 .8 .8 100* 1.5 2.2 68
STEEL CREEK PARK 10100 1.7 2.3 74 4.7 2.6 181
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Basin wide percent of average 136* 120
UPPER BEAR RIVER
BUG LAKE 7950 1.1 1.4 79* 2.1 3.6 58
HAYDEN FORK 9400 .4 1.2 33* 3.3 2.8 118
KELLEY R.S. 8180 .8 .8 100* 1.5 2.2 68
LILY LAKE 9050 1.0 1.2 83* 3.0 2.9 103
MONTE CRISTO 8960 1.0 1.7 59* 2.6 3.9 67
SALT RIVER SUMMIT 7600 .4 .2 200* 2.3 2.0 115
TRIAL LAKE 9960 1.5 2.3 65* 2.6 3.3 79
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Basin wide percent of average 70* 84
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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.