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 SATURDAY: NOVEMBER 5 , 2011
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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 .3 1.0 30* 3.5 2.5 140
COTTONWOOD CREEK 7670 .5 1.3 38* 4.9 3.7 132
GRAND TARGHEE 9260 3.0 -M * 5.6 -M *
GRANITE CREEK 6770 .2 .8 25* 2.6 2.2 118
GRASSY LAKE 7265 1.2 2.0 60* 5.4 4.1 132
GROS VENTRE SUMMIT 8750 .5 1.7 29 2.7 2.2 123
GUNSIGHT PASS 9820 .9 -M * 2.7 -M *
LEWIS LAKE DIVIDE 7850 .4 1.9 21* 4.8 3.9 123
PHILLIPS BENCH 8200 .1 2.0 5* 2.6 2.9 90
SALT RIVER SUMMIT 7760 .6 .6 100* 2.2 2.3 96
SNAKE RIVER STATION 6920 .2 .9 22* 4.1 2.7 152
SPRING CREEK DIVIDE 9000 1.6 2.1 76* 3.6 3.2 113
THUMB DIVIDE 7980 .4 1.2 33* 3.3 2.5 132
TOGWOTEE PASS 9580 1.8 3.2 56 3.6 3.4 106
TWO OCEAN PLATEAU 9240 4.8 3.7 130 4.4 3.7 119
WILLOW CREEK 8380 .4 2.5 16* 5.6 4.4 127
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Basin wide percent of average 52* 122
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 3.2 3.3 97 3.8 2.6 146
BLACK BEAR 8170 2.7 3.4 79* 5.9 4.4 134
CANYON 7870 .7 .9 78* 2.9 2.3 126
FISHER CREEK 9100 2.8 3.3 85* 5.3 4.1 129
MADISON PLATEAU 7750 .9 2.0 45* 4.8 3.0 160
NORTHEAST ENTRANCE 7350 .1 .5 20* 2.4 1.9 126
PARKER PEAK 9400 2.8 3.1 90 4.8 2.7 178
SYLVAN LAKE 8420 1.0 2.4 42* 4.8 3.1 155
THUMB DIVIDE 7980 .4 1.2 33* 3.3 2.5 132
TWO OCEAN PLATEAU 9240 4.8 3.7 130 4.4 3.7 119
WHISKEY CREEK 6800 .7 1.0 70* 3.9 2.7 144
WHITE MILL 8700 1.4 2.5 56* 4.1 3.3 124
WOLVERINE 7650 .8 .7 114* 3.7 2.2 168
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Basin wide percent of average 80* 141
WIND RIVER
BURROUGHS CREEK 8750 .6 1.4 43* 1.9 2.1 90
CASTLE CREEK 8400 .5 -M * 1.5 -M *
COLD SPRINGS 9630 1.0 1.4 71 2.4 2.3 104
DEER PARK 9700 1.4 3.0 47 3.3 3.2 103
HOBBS PARK 10100 2.9 2.6 112 3.2 2.6 123
LITTLE WARM 9370 .1 1.3 8 2.1 2.1 100
SOUTH PASS 9040 1.1 2.0 55 2.8 2.7 104
ST. LAWRENCE ALT 8620 .6 1.1 55 1.7 2.1 81
TOGWOTEE PASS 9580 1.8 3.2 56 3.6 3.4 106
TOWNSEND CREEK 8700 1.1 1.4 79 3.5 2.5 140
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Basin wide percent of average 61 107
BIGHORN BASIN
BALD MTN. 9380 4.3 3.3 130 4.5 2.9 155
BEAR TRAP MEADOW 8200 .4 .7 57 2.5 2.0 125
BLACKWATER 9780 4.0 3.6 111 4.4 3.2 138
BONE SPRINGS DIV 9350 4.5 3.1 145 5.2 2.9 179
EVENING STAR 9200 2.6 3.3 79* 5.5 3.5 157
GRAVE SPRINGS 8550 .3 1.5 20 2.5 2.4 104
KIRWIN 9550 2.3 2.3 100 3.5 2.2 159
MARQUETTE 8760 .5 -M * 3.8 2.7 141
MIDDLE POWDER 7760 .6 1.6 38 4.6 3.0 153
OWL CREEK 8975 1.0 1.0 100 1.9 1.4 136
POWDER RIVER PASS 9480 2.2 1.6 138 3.6 2.3 157
SHELL CREEK 9580 4.8 3.1 155 4.6 2.4 192
SYLVAN LAKE 8420 1.0 2.4 42* 4.8 3.1 155
SYLVAN ROAD 7120 .6 .7 86* 2.9 2.6 112
TIMBER CREEK 7950 .4 1.4 29 4.0 1.9 211
YOUNTS PEAK 8350 1.2 1.8 67* 2.9 2.3 126
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Basin wide percent of average 96 150
SHOSHONE RIVER
BLACKWATER 9780 4.0 3.6 111 4.4 3.2 138
EVENING STAR 9200 2.6 3.3 79* 5.5 3.5 157
KIRWIN 9550 2.3 2.3 100 3.5 2.2 159
MARQUETTE 8760 .5 -M * 3.8 2.7 141
SYLVAN LAKE 8420 1.0 2.4 42* 4.8 3.1 155
SYLVAN ROAD 7120 .6 .7 86* 2.9 2.6 112
YOUNTS PEAK 8350 1.2 1.8 67* 2.9 2.3 126
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Basin wide percent of average 83* 142
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .4 .7 57 2.5 2.0 125
BIG GOOSE 7990 2.5 1.0 250* 5.9 2.3 257
BONE SPRINGS DIV 9350 4.5 3.1 145 5.2 2.9 179
BURGESS JUNCTION 7880 2.2 1.9 116 5.4 2.6 208
CLOUD PEAK RESERVOIR 9860 2.9 2.0 145 5.2 3.0 173
DOME LAKE 8880 3.6 2.3 157 6.2 2.9 214
GRAVE SPRINGS 8550 .3 1.5 20 2.5 2.4 104
HANSEN SAWMILL 8360 1.0 1.0 100 2.9 2.1 138
LITTLE GOOSE 8870 2.9 -M * 6.5 -M *
MIDDLE POWDER 7760 .6 1.6 38 4.6 3.0 153
POWDER RIVER PASS 9480 2.2 1.6 138 3.6 2.3 157
SOLDIER PARK 8720 .4 -M * 3.7 -M *
SUCKER CREEK 8880 3.9 1.7 229 5.5 2.8 196
TIE CREEK 6870 1.1 1.1 100 5.8 2.8 207
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Basin wide percent of average 129 178
BELLE FOURCHE
BLIND PARK 6890 .4 1.1 36 1.5 3.0 50
COLE CANYON 5910 .1 1.1 9 1.6 2.1 76
NORTH RAPID CREEK 6130 .6 .6 100* 1.2 2.8 43
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Basin wide percent of average 39 54
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 3.0 -M * 4.5 -M *
CINNABAR PARK 9574 1.7 2.1 81 4.0 3.1 129
COLUMBINE 9160 .7 1.3 54* 3.4 2.9 117
DIVIDE PEAK 8880 1.5 2.2 68 4.4 3.2 138
ELK RIVER 8700 .3 .9 33* 2.8 2.6 108
JOE WRIGHT 10120 1.7 3.2 53 5.0 4.0 125
NORTH FRENCH CREEK 10130 3.0 3.8 79 4.3 4.0 108
OLD BATTLE 10000 3.1 3.8 82 4.6 4.3 107
SAGE CREEK BASIN 7850 .9 1.3 69 2.5 1.9 132
SOUTH BRUSH CREEK 8440 .6 1.0 60* 3.3 3.1 106
TOWER 10500 2.6 4.7 55* 4.3 4.9 88
WEBBER SPRINGS 9250 1.4 2.5 56* 4.3 3.7 116
WILLOW CREEK PASS 9540 1.7 1.5 113 2.8 2.4 117
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Basin wide percent of average 68 114
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.4 2.7 52* 3.7 3.0 123
CASPER MTN. 7900 2.7 2.2 123 6.2 3.0 207
DEADMAN HILL 10220 3.7 2.7 137 4.3 2.9 148
DEER PARK 9700 1.4 3.0 47 3.3 3.2 103
LAPRELE CREEK 8375 1.6 1.3 123 3.9 2.3 170
RENO HILL 8400 3.1 2.1 148 5.0 3.0 167
ROACH 9700 2.4 1.6 150* 4.2 2.8 150
SAND LAKE 10050 4.0 4.1 98 5.1 3.6 142
SOUTH PASS 9040 1.1 2.0 55 2.8 2.7 104
WINDY PEAK 7900 1.5 .8 188* 2.9 2.0 145
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Basin wide percent of average 102 145
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .3 .7 43* 2.1 2.3 91
DIVIDE PEAK 8880 1.5 2.2 68 4.4 3.2 138
OLD BATTLE 10000 3.1 3.8 82 4.6 4.3 107
SANDSTONE RS 8150 .0 .7 0* 2.0 2.8 71
WHISKEY PARK 8950 .6 2.3 26* 3.7 3.5 106
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Basin wide percent of average 57* 104
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.4 1.6 88 2.4 2.2 109
BLIND BULL SUM 8650 .8 2.3 35* 2.2 2.7 81
EAST RIM DIVIDE 7930 .5 .9 56* 2.2 1.7 129
ELKHART PARK G.S. 9400 1.0 1.2 83* 3.0 2.3 130
GROS VENTRE SUMMIT 8750 .5 1.7 29 2.7 2.2 123
GUNSIGHT PASS 9820 .9 -M * 2.7 -M *
KENDALL R.S. 7740 .3 1.0 30* 2.3 1.9 121
LOOMIS PARK 8240 .2 1.3 15* 2.6 2.2 118
NEW FORK LAKE 8340 .9 .8 113* 2.8 1.9 147
POCKET CREEK 9360 1.8 -M * 2.8 -M *
SNIDER BASIN 8060 .3 1.1 27* 1.9 2.0 95
SPRING CREEK DIVIDE 9000 1.6 2.1 76* 3.6 3.2 113
TRIPLE PEAK 8500 1.1 1.8 61* 3.2 2.8 114
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Basin wide percent of average 54* 115
LOWER GREEN RIVER
HAMS FORK 7840 .2 .6 33* 2.7 1.7 159
HEWINTA 9519 .0 1.0 0* 3.6 2.8 129
HICKERSON PARK 9145 1.0 .6 167* 4.6 2.0 230
HOLE-IN-ROCK 9150 1.4 .6 233* 4.2 1.9 221
INDIAN CREEK 9425 1.8 2.1 86* 3.7 3.2 116
KELLEY R.S. 8180 .8 1.4 57* 3.2 2.6 123
STEEL CREEK PARK 10200 1.2 2.0 60 4.2 2.8 150
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Basin wide percent of average 77* 154
UPPER BEAR RIVER
BUG LAKE 7950 .4 1.6 25* 2.7 2.8 96
HAYDEN FORK 9212 .5 1.1 45* 4.7 2.9 162
KELLEY R.S. 8180 .8 1.4 57* 3.2 2.6 123
LILY LAKE 9156 .3 1.2 25* 3.3 2.9 114
MONTE CRISTO 8960 1.1 2.0 55* 3.2 3.4 94
SALT RIVER SUMMIT 7760 .6 .6 100* 2.2 2.3 96
TRIAL LAKE 9992 1.9 2.4 79* 2.8 3.3 85
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Basin wide percent of average 54* 109
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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.