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 WEDNESDAY: NOVEMBER 3 , 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 1.8 .9 200* 3.3 2.4 138
COTTONWOOD CREEK 7600 2.4 1.2 200* 4.6 3.4 135
GRANITE CREEK 6770 1.7 .7 243* 4.2 2.0 210
GRASSY LAKE 7265 3.9 1.8 217* 5.1 3.9 131
GROS VENTRE SUMMIT 8750 2.5 1.5 167 2.9 2.1 138
LEWIS LAKE DIVIDE 7850 4.4 1.7 259* 5.3 3.7 143
PHILLIPS BENCH 8200 3.4 1.8 189* 4.4 2.8 157
SALT RIVER SUMMIT 7600 1.6 .5 320* 4.0 2.2 182
SNAKE RIVER STATION 6920 1.0 .8 125* 3.1 2.6 119
SPRING CREEK DIVIDE 9000 5.0 1.9 263* 5.6 3.0 187
THUMB DIVIDE 7980 2.1 1.1 191* 2.8 2.3 122
TOGWOTEE PASS 9580 3.2 3.0 107 3.4 3.2 106
TWO OCEAN PLATEAU 9240 5.4 3.5 154 4.9 3.5 140
WILLOW CREEK 8450 4.4 2.2 200* 6.3 4.2 150
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Basin wide percent of average 189* 145
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 2.9 3.0 97 3.1 2.4 129
BLACK BEAR 8170 6.6 3.3 200* 7.2 4.1 176
CANYON 8090 1.4 .8 175* 2.6 2.1 124
FISHER CREEK 9100 3.8 3.2 119* 4.9 3.8 129
MADISON PLATEAU 7750 3.3 1.9 174* 4.7 2.9 162
NORTHEAST ENTRANCE 7350 .4 .4 100* 1.4 1.8 78
PARKER PEAK 9400 2.9 2.9 100 2.9 2.6 112
SYLVAN LAKE 8420 3.3 2.3 143* 4.3 3.0 143
THUMB DIVIDE 7980 2.1 1.1 191* 2.8 2.3 122
TWO OCEAN PLATEAU 9240 5.4 3.5 154 4.9 3.5 140
WHISKEY CREEK 6800 1.9 1.0 190* 3.8 2.5 152
WHITE MILL 8700 2.6 2.4 108* 3.3 3.1 106
WOLVERINE 7650 .5 .6 83* 1.8 2.1 86
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Basin wide percent of average 141* 132
WIND RIVER
BURROUGHS CREEK 8750 1.6 1.2 133* 2.1 1.9 111
COLD SPRINGS 9630 1.4 1.2 117 1.8 2.1 86
DEER PARK 9700 6.6 2.8 236 7.5 2.9 259
HOBBS PARK 10100 3.3 2.5 132 3.5 2.4 146
LITTLE WARM 9370 1.7 1.3 131 2.0 2.0 100
SOUTH PASS 9040 4.5 1.8 250 5.6 2.5 224
ST. LAWRENCE ALT 8620 .9 1.0 90 1.8 1.9 95
TOGWOTEE PASS 9580 3.2 3.0 107 3.4 3.2 106
TOWNSEND CREEK 8700 1.7 1.2 142 4.2 2.4 175
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Basin wide percent of average 156 150
BIGHORN BASIN
BALD MTN. 9380 3.6 3.0 120 4.0 2.7 148
BEAR TRAP MEADOW 8200 .9 .7 129 2.7 1.9 142
BLACKWATER 9780 3.3 3.5 94 3.6 3.1 116
BONE SPRINGS DIV 9350 4.3 2.9 148 4.4 2.8 157
EVENING STAR 9200 3.4 3.1 110* 4.6 3.3 139
GRAVE SPRINGS 8550 1.3 1.3 100 2.4 2.3 104
KIRWIN 9550 1.4 2.1 67 1.7 2.0 85
MARQUETTE 8760 1.1 2.1 52 1.7 2.5 68
MIDDLE POWDER 7760 1.6 1.5 107 2.7 2.8 96
OWL CREEK 8975 .5 1.0 50 .9 1.3 69
POWDER RIVER PASS 9480 3.3 1.4 236 4.2 2.1 200
SHELL CREEK 9580 3.6 2.9 124 3.5 2.3 152
SYLVAN LAKE 8420 3.3 2.3 143* 4.3 3.0 143
SYLVAN ROAD 7120 1.2 .7 171* 3.0 2.5 120
TIMBER CREEK 7950 .1 1.2 8 .6 1.8 33
YOUNTS PEAK 8350 1.6 1.6 100* 2.7 2.1 129
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Basin wide percent of average 110 122
SHOSHONE RIVER
BLACKWATER 9780 3.3 3.5 94 3.6 3.1 116
EVENING STAR 9200 3.4 3.1 110* 4.6 3.3 139
KIRWIN 9550 1.4 2.1 67 1.7 2.0 85
MARQUETTE 8760 1.1 2.1 52 1.7 2.5 68
SYLVAN LAKE 8420 3.3 2.3 143* 4.3 3.0 143
SYLVAN ROAD 7120 1.2 .7 171* 3.0 2.5 120
YOUNTS PEAK 8350 1.6 1.6 100* 2.7 2.1 129
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Basin wide percent of average 99* 117
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .9 .7 129 2.7 1.9 142
BIG GOOSE 7990 1.2 1.0 120* 2.8 2.3 122
BONE SPRINGS DIV 9350 4.3 2.9 148 4.4 2.8 157
BURGESS JUNCTION 7880 -M 1.8 * -M 2.4 *
CLOUD PEAK RESERVOIR 9860 2.8 1.8 156 3.3 2.8 118
DOME LAKE 8880 2.6 2.1 124 3.4 2.8 121
GRAVE SPRINGS 8550 1.3 1.3 100 2.4 2.3 104
HANSEN SAWMILL 8360 .8 1.0 80 1.8 2.0 90
MIDDLE POWDER 7760 1.6 1.5 107 2.7 2.8 96
POWDER RIVER PASS 9480 3.3 1.4 236 4.2 2.1 200
SUCKER CREEK 8880 3.2 1.5 213 4.1 2.6 158
TIE CREEK 6870 .5 .9 56 2.5 2.7 93
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Basin wide percent of average 140 127
BELLE FOURCHE
BLIND PARK 6890 .7 .7 100* 2.6 2.8 93
COLE CANYON 5910 .5 1.0 50 2.3 -M *
NORTH RAPID CREEK 6130 .7 .6 117* 2.1 2.7 78
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Basin wide percent of average 83* 85
UPPER N. PLATTE RIVER
COLUMBINE 9160 .5 1.1 45* 3.1 2.8 111
DIVIDE PEAK 8860 4.3 2.0 215* 6.9 3.0 230
ELK RIVER 8700 1.0 .8 125* 4.1 2.5 164
JOE WRIGHT 10120 3.7 3.0 123 1.7 3.8 45
NORTH FRENCH CREEK 10130 4.1 3.6 114 4.5 3.8 118
OLD BATTLE 9920 7.9 3.6 219* 9.2 4.1 224
SAGE CREEK BASIN 7850 1.7 1.1 155* 5.7 1.7 335
SOUTH BRUSH CREEK 8440 .8 .9 89* 2.4 2.9 83
TOWER 10500 7.9 4.3 184* 7.1 4.5 158
WEBBER SPRINGS 9250 4.7 2.3 204* 6.5 3.5 186
WILLOW CREEK PASS 9540 2.0 1.4 143* 2.1 2.3 91
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Basin wide percent of average 160* 153
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 1.8 2.5 72* 2.8 2.8 100
CASPER MTN. 7850 1.7 2.0 85 3.0 2.8 107
DEADMAN HILL 10220 3.8 2.5 152 3.0 2.8 107
DEER PARK 9700 6.6 2.8 236 7.5 2.9 259
LAPRELE CREEK 8375 .8 1.2 67 2.7 2.2 123
RENO HILL 8500 1.2 2.0 60 2.3 2.8 82
ROACH 9700 1.3 1.5 87* 3.0 2.6 115
SAND LAKE 10050 5.2 3.8 137 4.1 3.5 117
SOUTH PASS 9040 4.5 1.8 250 5.6 2.5 224
WINDY PEAK 7900 .1 .7 14* 1.8 1.9 95
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Basin wide percent of average 130 134
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .9 .7 129* 3.7 2.2 168
DIVIDE PEAK 8860 4.3 2.0 215* 6.9 3.0 230
OLD BATTLE 9920 7.9 3.6 219* 9.2 4.1 224
SANDSTONE RS 8150 1.3 .7 186* 4.9 2.6 188
WHISKEY PARK 8950 3.7 2.1 176* 5.5 3.3 167
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Basin wide percent of average 199* 199
UPPER GREEN RIVER
BIG SANDY OPENING 9080 5.0 1.5 333* 5.4 2.1 257
BLIND BULL SUM 8900 3.6 2.1 171* 3.7 2.6 142
EAST RIM DIVIDE 7930 .7 .8 87* 2.2 1.5 147
ELKHART PARK G.S. 9400 3.5 1.1 318* 4.5 2.2 205
GROS VENTRE SUMMIT 8750 2.5 1.5 167 2.9 2.1 138
KENDALL R.S. 7740 1.9 .8 237* 3.5 1.8 194
LOOMIS PARK 8240 2.3 1.2 192* 3.5 2.1 167
NEW FORK LAKE 8340 1.5 .7 214* 2.5 1.7 147
SNIDER BASIN 8060 2.4 1.0 240* 3.5 1.9 184
SPRING CREEK DIVIDE 9000 5.0 1.9 263* 5.6 3.0 187
TRIPLE PEAK 8500 2.6 1.6 162* 4.0 2.6 154
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Basin wide percent of average 218* 175
LOWER GREEN RIVER
HAMS FORK 7840 1.8 .6 300* 3.8 1.6 237
HEWINTA 9500 .0 1.0 0* 3.0 2.7 111
HICKERSON PARK 9100 1.1 .6 183* 3.8 1.9 200
HOLE-IN-ROCK 9150 1.6 .6 267* 3.6 1.8 200
INDIAN CREEK 9425 6.0 1.9 316* 6.1 3.0 203
KELLEY R.S. 8180 4.4 1.2 367* 5.6 2.4 233
STEEL CREEK PARK 10100 3.7 1.8 206* 4.1 2.6 158
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Basin wide percent of average 242* 187
UPPER BEAR RIVER
BUG LAKE 7950 2.7 1.5 180* 5.0 2.6 192
HAYDEN FORK 9100 3.8 1.0 380* 7.0 2.7 259
KELLEY R.S. 8180 4.4 1.2 367* 5.6 2.4 233
LILY LAKE 9050 2.6 1.1 236* 5.1 2.7 189
MONTE CRISTO 8960 6.1 1.9 321* 7.1 3.2 222
SALT RIVER SUMMIT 7600 1.6 .5 320* 4.0 2.2 182
TRIAL LAKE 9960 7.1 2.2 323* 9.0 3.2 281
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Basin wide percent of average 301* 225
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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.