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 9 , 2004
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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 1.9 1.4 136* 3.3 3.2 103
COTTONWOOD CREEK 7600 2.4 1.8 133* 4.6 4.4 105
GRANITE CREEK 6770 1.7 1.2 142* 4.3 2.8 154
GRASSY LAKE 7265 3.8 2.9 131* 5.2 5.1 102
GROS VENTRE SUMMIT 8750 2.8 2.0 140 3.0 2.5 120
LEWIS LAKE DIVIDE 7850 4.3 2.7 159* 5.4 5.1 106
PHILLIPS BENCH 8200 3.4 2.6 131* 4.5 3.8 118
SALT RIVER SUMMIT 7600 1.5 .9 167* 4.1 2.8 146
SNAKE RIVER STATION 6920 1.3 1.3 100* 3.2 3.4 94
SPRING CREEK DIVIDE 9000 5.0 2.7 185* 5.7 3.9 146
THUMB DIVIDE 7980 2.2 1.6 138* 2.8 3.0 93
TOGWOTEE PASS 9580 3.4 3.8 89 3.6 4.1 88
TWO OCEAN PLATEAU 9240 5.4 4.5 120 4.9 4.5 109
WILLOW CREEK 8450 4.2 3.3 127 6.3 5.3 119
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Basin wide percent of average 132* 113
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.2 3.8 84 3.3 3.2 103
BLACK BEAR 8170 6.7 4.4 152 7.4 5.4 137
CANYON 8090 1.4 1.3 108* 2.7 2.7 100
FISHER CREEK 9100 3.9 4.2 93 5.3 5.1 104
MADISON PLATEAU 7750 3.5 2.6 135 4.9 3.8 129
NORTHEAST ENTRANCE 7350 .4 .8 50* 1.5 2.2 68
PARKER PEAK 9400 3.1 3.6 86 3.2 3.2 100
SYLVAN LAKE 8420 3.3 3.1 106 4.4 3.9 113
THUMB DIVIDE 7980 2.2 1.6 138* 2.8 3.0 93
TWO OCEAN PLATEAU 9240 5.4 4.5 120 4.9 4.5 109
WHISKEY CREEK 6800 2.0 1.4 143* 4.1 3.3 124
WHITE MILL 8700 2.8 3.1 90 3.6 4.1 88
WOLVERINE 7650 .3 1.1 27* 1.9 2.6 73
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Basin wide percent of average 108 106
WIND RIVER
BURROUGHS CREEK 8750 1.7 1.7 100 2.3 2.6 88
COLD SPRINGS 9630 1.5 1.7 88 1.9 2.6 73
DEER PARK 9700 6.6 3.3 200 7.5 3.8 197
HOBBS PARK 10100 3.4 3.1 110 3.6 2.8 129
LITTLE WARM 9370 1.7 1.7 100 2.0 2.5 80
SOUTH PASS 9040 4.6 2.5 184 5.6 3.2 175
ST. LAWRENCE ALT 8620 1.0 1.4 71 1.8 2.3 78
TOGWOTEE PASS 9580 3.4 3.8 89 3.6 4.1 88
TOWNSEND CREEK 8700 1.8 1.6 112 4.4 2.8 157
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Basin wide percent of average 124 122
BIGHORN BASIN
BALD MTN. 9380 3.8 3.8 100 4.3 3.2 134
BEAR TRAP MEADOW 8200 .9 .9 100 2.8 2.2 127
BLACKWATER 9780 3.5 4.3 81 4.0 4.0 100
BONE SPRINGS DIV 9350 4.4 3.5 126 4.7 3.2 147
EVENING STAR 9200 3.5 4.2 83 4.8 4.3 112
GRAVE SPRINGS 8550 1.3 1.7 76 2.4 2.6 92
KIRWIN 9550 1.5 2.5 60 1.9 2.5 76
MARQUETTE 8760 1.2 2.5 48 1.6 2.9 55
MIDDLE POWDER 7760 1.4 2.0 70 2.7 3.3 82
OWL CREEK 8975 .6 1.2 50 1.0 1.5 67
POWDER RIVER PASS 9480 3.4 1.9 179 4.4 2.6 169
SHELL CREEK 9580 3.8 3.4 112 3.6 2.7 133
SYLVAN LAKE 8420 3.3 3.1 106 4.4 3.9 113
SYLVAN ROAD 7120 1.3 1.2 108* 3.1 3.4 91
TIMBER CREEK 7950 .1 1.6 6 .5 2.0 25
YOUNTS PEAK 8350 1.8 2.2 82 2.9 2.8 104
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Basin wide percent of average 89 104
SHOSHONE RIVER
BLACKWATER 9780 3.5 4.3 81 4.0 4.0 100
EVENING STAR 9200 3.5 4.2 83 4.8 4.3 112
KIRWIN 9550 1.5 2.5 60 1.9 2.5 76
MARQUETTE 8760 1.2 2.5 48 1.6 2.9 55
SYLVAN LAKE 8420 3.3 3.1 106 4.4 3.9 113
SYLVAN ROAD 7120 1.3 1.2 108* 3.1 3.4 91
YOUNTS PEAK 8350 1.8 2.2 82 2.9 2.8 104
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Basin wide percent of average 80 95
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .9 .9 100 2.8 2.2 127
BIG GOOSE 7990 1.2 1.2 100 2.9 2.4 121
BONE SPRINGS DIV 9350 4.4 3.5 126 4.7 3.2 147
BURGESS JUNCTION 7880 1.6 2.2 73 3.4 2.8 121
CLOUD PEAK RESERVOIR 9860 3.1 2.2 141 3.5 3.3 106
DOME LAKE 8880 2.7 2.6 104 3.5 3.2 109
GRAVE SPRINGS 8550 1.3 1.7 76 2.4 2.6 92
HANSEN SAWMILL 8360 .4 1.1 36 1.9 2.2 86
MIDDLE POWDER 7760 1.4 2.0 70 2.7 3.3 82
POWDER RIVER PASS 9480 3.4 1.9 179 4.4 2.6 169
SUCKER CREEK 8880 3.3 2.0 165 4.3 3.0 143
TIE CREEK 6870 .1 1.1 9 2.5 2.9 86
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Basin wide percent of average 106 116
BELLE FOURCHE
BLIND PARK 6890 .6 1.1 55 2.7 3.2 84
COLE CANYON 5910 .0 1.2 0 2.7 -M *
NORTH RAPID CREEK 6130 .2 .8 25* 2.1 2.9 72
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Basin wide percent of average 26 79
UPPER N. PLATTE RIVER
COLUMBINE 9160 .8 1.9 42* 3.5 3.5 100
DIVIDE PEAK 8860 4.2 2.6 162 7.0 3.7 189
ELK RIVER 8700 1.3 1.2 108* 4.4 3.1 142
JOE WRIGHT 10120 4.4 3.7 119 -M 4.6 *
NORTH FRENCH CREEK 10130 4.2 4.4 95 4.8 4.6 104
OLD BATTLE 9920 7.8 4.6 170 9.5 5.2 183
SAGE CREEK BASIN 7850 1.7 1.5 113 5.7 2.1 271
SOUTH BRUSH CREEK 8440 .8 1.3 62* 2.6 3.4 76
TOWER 10500 8.1 6.0 135 7.5 5.8 129
WEBBER SPRINGS 9250 4.6 3.1 148 6.8 4.4 155
WILLOW CREEK PASS 9540 2.5 1.9 132 2.4 2.7 89
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Basin wide percent of average 125 141
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 1.9 3.2 59 2.9 3.6 81
CASPER MTN. 7850 1.5 2.5 60 3.3 3.3 100
DEADMAN HILL 10220 4.1 3.0 137 3.1 3.3 94
DEER PARK 9700 6.6 3.3 200 7.5 3.8 197
LAPRELE CREEK 8375 .9 1.6 56 3.0 2.6 115
RENO HILL 8500 1.3 2.4 54 2.6 3.3 79
ROACH 9700 1.4 2.0 70 3.0 3.1 97
SAND LAKE 10050 5.2 4.9 106 4.1 4.3 95
SOUTH PASS 9040 4.6 2.5 184 5.6 3.2 175
WINDY PEAK 7900 .2 1.1 18 1.8 2.3 78
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Basin wide percent of average 105 112
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.1 .9 122* 4.2 2.6 162
DIVIDE PEAK 8860 4.2 2.6 162 7.0 3.7 189
OLD BATTLE 9920 7.8 4.6 170 9.5 5.2 183
SANDSTONE RS 8150 1.0 1.0 100* 4.9 3.2 153
WHISKEY PARK 8950 3.7 2.9 128* 5.4 4.3 126
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Basin wide percent of average 148* 163
UPPER GREEN RIVER
BIG SANDY OPENING 9080 5.3 1.9 279 5.5 2.5 220
BLIND BULL SUM 8900 3.6 3.0 120 3.7 3.4 109
EAST RIM DIVIDE 7930 1.0 1.3 77* 2.2 2.0 110
ELKHART PARK G.S. 9400 3.7 1.5 247 4.6 2.6 177
GROS VENTRE SUMMIT 8750 2.8 2.0 140 3.0 2.5 120
KENDALL R.S. 7740 2.0 1.3 154* 3.5 2.3 152
LOOMIS PARK 8240 2.4 1.7 141* 3.5 2.7 130
NEW FORK LAKE 8340 1.7 1.1 155* 2.8 2.2 127
SNIDER BASIN 8060 2.5 1.4 179* 3.6 2.4 150
SPRING CREEK DIVIDE 9000 5.0 2.7 185* 5.7 3.9 146
TRIPLE PEAK 8500 2.7 2.4 113* 4.1 3.4 121
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Basin wide percent of average 161* 141
LOWER GREEN RIVER
HAMS FORK 7840 2.0 .9 222* 3.8 2.0 190
HEWINTA 9500 .5 1.2 42* 2.9 3.1 94
HICKERSON PARK 9100 1.1 .7 157* 4.3 2.2 195
HOLE-IN-ROCK 9150 1.8 .8 225 3.9 2.0 195
INDIAN CREEK 9425 6.0 2.8 214* 6.2 3.8 163
KELLEY R.S. 8180 4.4 1.7 259 5.7 3.1 184
STEEL CREEK PARK 10100 4.0 2.3 174 4.3 3.1 139
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Basin wide percent of average 190* 161
UPPER BEAR RIVER
BUG LAKE 7950 2.6 1.9 137* 5.1 3.3 155
HAYDEN FORK 9100 3.3 1.4 236* 7.1 3.5 203
KELLEY R.S. 8180 4.4 1.7 259 5.7 3.1 184
LILY LAKE 9050 2.6 1.5 173 5.0 3.4 147
MONTE CRISTO 8960 6.0 2.4 250* 7.2 4.1 176
SALT RIVER SUMMIT 7600 1.5 .9 167* 4.1 2.8 146
TRIAL LAKE 9960 7.0 2.9 241 9.0 3.9 231
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Basin wide percent of average 216* 179
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Average Snow Water Equivalent and
Total Precipitation values
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 1971-2000.
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.