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 THURSDAY: NOVEMBER 1 , 2007
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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 .7 100* 5.4 2.1 257
COTTONWOOD CREEK 7600 1.7 1.0 170* 5.1 3.1 165
GRANITE CREEK 6770 .8 .6 133* 4.2 1.8 233
GRASSY LAKE 7265 1.3 1.5 87* 6.7 3.5 191
GROS VENTRE SUMMIT 8750 2.2 1.4 157* 4.0 1.9 211
LEWIS LAKE DIVIDE 7850 1.4 1.3 108* 6.1 3.3 185
PHILLIPS BENCH 8200 1.6 1.5 107* 5.4 2.5 216
SALT RIVER SUMMIT 7600 .0 .4 0* 2.5 2.0 125
SNAKE RIVER STATION 6920 .1 .6 17* 5.2 2.3 226
SPRING CREEK DIVIDE 9000 1.7 1.6 106* 3.3 2.7 122
THUMB DIVIDE 7980 .5 .9 56* 4.5 2.1 214
TOGWOTEE PASS 9580 4.8 2.7 178* 5.9 2.9 203
TWO OCEAN PLATEAU 9240 6.2 3.2 194 6.5 3.2 203
WILLOW CREEK 8450 2.3 1.9 121* 6.9 3.8 182
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Basin wide percent of average 131* 193
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 4.9 2.7 181 4.8 2.2 218
BLACK BEAR 8170 4.4 2.9 152* 6.8 3.6 189
CANYON 8090 1.4 .7 200* 4.2 1.9 221
FISHER CREEK 9100 5.9 2.8 211* 7.0 3.4 206
MADISON PLATEAU 7750 1.8 1.7 106* 5.1 2.6 196
NORTHEAST ENTRANCE 7350 .0 .3 0* 3.3 1.6 206
PARKER PEAK 9400 4.7 2.6 181 5.8 2.4 242
SYLVAN LAKE 8420 2.1 2.0 105* 6.0 2.7 222
THUMB DIVIDE 7980 .5 .9 56* 4.5 2.1 214
TWO OCEAN PLATEAU 9240 6.2 3.2 194 6.5 3.2 203
WHISKEY CREEK 6800 .9 .8 112* 4.6 2.3 200
WHITE MILL 8700 4.2 2.1 200* 5.4 2.8 193
WOLVERINE 7650 .0 .5 0* 3.7 1.9 195
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Basin wide percent of average 159* 207
WIND RIVER
BURROUGHS CREEK 8750 2.1 1.0 210* 4.2 1.7 247
COLD SPRINGS 9630 .0 1.1 0 2.4 2.0 120
DEER PARK 9700 1.5 2.7 56 3.2 2.6 123
HOBBS PARK 10100 1.6 2.3 70 3.2 2.2 145
LITTLE WARM 9370 1.1 1.1 100* 3.1 1.8 172
SOUTH PASS 9040 .2 1.6 12* 2.5 2.2 114
ST. LAWRENCE ALT 8620 .2 .9 22 1.5 1.8 83
TOGWOTEE PASS 9580 4.8 2.7 178* 5.9 2.9 203
TOWNSEND CREEK 8700 .1 1.1 9 2.6 2.2 118
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Basin wide percent of average 80 147
BIGHORN BASIN
BALD MTN. 9380 3.2 2.8 114 3.7 2.5 148
BEAR TRAP MEADOW 8200 .8 .6 133 2.2 1.8 122
BLACKWATER 9780 5.2 3.2 162 5.0 2.8 179
BONE SPRINGS DIV 9350 2.6 2.7 96 4.1 2.6 158
EVENING STAR 9200 4.3 2.8 154* 6.6 2.9 228
GRAVE SPRINGS 8550 1.3 1.2 108 2.8 2.2 127
KIRWIN 9550 3.7 1.9 195 5.1 1.9 268
MARQUETTE 8760 .2 2.0 10 3.3 2.4 138
MIDDLE POWDER 7760 1.8 1.3 138* 2.8 2.7 104
OWL CREEK 8975 .9 .9 100 2.6 1.2 217
POWDER RIVER PASS 9480 1.7 1.3 131 3.5 2.0 175
SHELL CREEK 9580 4.4 2.7 163 5.1 2.1 243
SYLVAN LAKE 8420 2.1 2.0 105* 6.0 2.7 222
SYLVAN ROAD 7120 .0 .5 0* 5.3 2.2 241
TIMBER CREEK 7950 .3 1.1 27 3.5 1.7 206
YOUNTS PEAK 8350 2.0 1.4 143* 5.5 1.9 289
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Basin wide percent of average 121 188
SHOSHONE RIVER
BLACKWATER 9780 5.2 3.2 162 5.0 2.8 179
EVENING STAR 9200 4.3 2.8 154* 6.6 2.9 228
KIRWIN 9550 3.7 1.9 195 5.1 1.9 268
MARQUETTE 8760 .2 2.0 10 3.3 2.4 138
SYLVAN LAKE 8420 2.1 2.0 105* 6.0 2.7 222
SYLVAN ROAD 7120 .0 .5 0* 5.3 2.2 241
YOUNTS PEAK 8350 2.0 1.4 143* 5.5 1.9 289
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Basin wide percent of average 127* 219
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .8 .6 133 2.2 1.8 122
BIG GOOSE 7990 1.6 .9 178* 4.4 2.2 200
BONE SPRINGS DIV 9350 2.6 2.7 96 4.1 2.6 158
BURGESS JUNCTION 7880 1.5 1.6 94 3.6 2.3 157
CLOUD PEAK RESERVOIR 9860 3.1 1.6 194* 5.3 2.7 196
DOME LAKE 8880 2.1 1.9 111 4.7 2.6 181
GRAVE SPRINGS 8550 1.3 1.2 108 2.8 2.2 127
HANSEN SAWMILL 8360 .5 .9 56 3.4 1.9 179
MIDDLE POWDER 7760 1.8 1.3 138* 2.8 2.7 104
POWDER RIVER PASS 9480 1.7 1.3 131 3.5 2.0 175
SUCKER CREEK 8880 2.1 1.4 150 3.9 2.5 156
TIE CREEK 6870 .1 .9 11 3.1 2.6 119
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Basin wide percent of average 118 156
BELLE FOURCHE
BLIND PARK 6890 .0 .6 0* 1.5 2.7 56
COLE CANYON 5910 .0 .9 0 1.1 -M *
NORTH RAPID CREEK 6130 .0 .5 0* 1.1 2.6 42
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Basin wide percent of average 0* 49
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 .9 0* 3.9 2.5 156
DIVIDE PEAK 8860 1.5 1.8 83* 3.3 2.8 118
ELK RIVER 8700 .2 .7 29* 3.0 2.3 130
JOE WRIGHT 10120 2.5 2.7 93 5.4 3.5 154
NORTH FRENCH CREEK 10130 3.1 3.3 94* 4.6 3.5 131
OLD BATTLE 9920 2.9 3.2 91* 4.6 3.7 124
SAGE CREEK BASIN 7850 .0 1.0 0* 2.8 1.6 175
SOUTH BRUSH CREEK 8440 1.1 .8 138* 3.8 2.7 141
TOWER 10500 3.3 3.7 89* 5.2 4.1 127
WEBBER SPRINGS 9250 1.4 2.0 70* 3.8 3.2 119
WILLOW CREEK PASS 9540 2.3 1.2 192* 3.2 2.1 152
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Basin wide percent of average 86* 136
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 1.5 2.3 65* 3.1 2.6 119
CASPER MTN. 7850 1.2 1.8 67 3.7 2.6 142
DEADMAN HILL 10220 2.5 2.3 109 3.6 2.6 138
DEER PARK 9700 1.5 2.7 56 3.2 2.6 123
LAPRELE CREEK 8375 .3 1.1 27 2.2 2.0 110
RENO HILL 8500 2.1 1.8 117 4.0 2.6 154
ROACH 9700 2.0 1.3 154* 3.4 2.4 142
SAND LAKE 10050 4.2 3.4 124* 5.0 3.2 156
SOUTH PASS 9040 .2 1.6 12* 2.5 2.2 114
WINDY PEAK 7900 .5 .6 83* 1.8 1.8 100
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Basin wide percent of average 85 132
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M .6 * 2.3 2.0 115
DIVIDE PEAK 8860 1.5 1.8 83* 3.3 2.8 118
OLD BATTLE 9920 2.9 3.2 91* 4.6 3.7 124
SANDSTONE RS 8150 -M .6 * 2.5 2.4 104
WHISKEY PARK 8950 1.3 1.8 72* 4.3 3.0 143
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Basin wide percent of average 84* 122
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.3 1.3 100* 2.0 1.9 105
BLIND BULL SUM 8900 1.9 1.8 106* 3.2 2.3 139
EAST RIM DIVIDE 7930 .0 .7 0* 2.0 1.4 143
ELKHART PARK G.S. 9400 .9 .9 100* 2.3 2.0 115
GROS VENTRE SUMMIT 8750 2.2 1.4 157* 4.0 1.9 211
KENDALL R.S. 7740 .2 .7 29* 2.3 1.6 144
LOOMIS PARK 8240 .5 1.0 50* 2.4 1.9 126
NEW FORK LAKE 8340 .4 .6 67* 2.0 1.6 125
SNIDER BASIN 8060 .1 .8 12* 1.7 1.7 100
SPRING CREEK DIVIDE 9000 1.7 1.6 106* 3.3 2.7 122
TRIPLE PEAK 8500 2.1 1.3 162* 4.5 2.3 196
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Basin wide percent of average 93* 139
LOWER GREEN RIVER
HAMS FORK 7840 .0 .5 0* 1.6 1.5 107
HEWINTA 9500 -M .9 * 4.4 2.5 176
HICKERSON PARK 9100 .0 .5 0* 2.8 1.8 156
HOLE-IN-ROCK 9150 -M .5 * 3.4 1.7 200
INDIAN CREEK 9425 1.3 1.6 81* 2.7 2.7 100
KELLEY R.S. 8180 .1 1.0 10* 2.8 2.2 127
STEEL CREEK PARK 10100 3.5 1.7 206* 4.8 2.4 200
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Basin wide percent of average 92* 152
UPPER BEAR RIVER
BUG LAKE 7950 .0 1.3 0* 1.1 2.4 46
HAYDEN FORK 9100 .1 .9 11* 3.5 2.5 140
KELLEY R.S. 8180 .1 1.0 10* 2.8 2.2 127
LILY LAKE 9050 .0 1.0 0* 3.6 2.5 144
MONTE CRISTO 8960 .0 1.7 0* 3.0 2.9 103
SALT RIVER SUMMIT 7600 .0 .4 0* 2.5 2.0 125
TRIAL LAKE 9960 1.1 2.0 55* 3.0 2.9 103
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Basin wide percent of average 16* 112
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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.