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 MONDAY: NOVEMBER 14 , 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 2.0 1.9 105 5.4 3.6 150
COTTONWOOD CREEK 7670 1.8 2.2 82* 6.2 5.0 124
GRAND TARGHEE 9260 6.9 -M * 7.1 -M *
GRANITE CREEK 6770 1.5 1.5 100* 3.6 3.1 116
GRASSY LAKE 7265 2.0 3.7 54* 7.5 5.8 129
GROS VENTRE SUMMIT 8750 1.3 2.4 54 2.9 2.9 100
GUNSIGHT PASS 9820 1.8 -M * 3.7 -M *
LEWIS LAKE DIVIDE 7850 2.2 3.6 61* 6.9 5.7 121
PHILLIPS BENCH 8200 1.7 3.3 52 4.3 4.2 102
SALT RIVER SUMMIT 7760 1.5 1.1 136* 3.3 3.1 106
SNAKE RIVER STATION 6920 1.5 1.8 83* 5.6 3.8 147
SPRING CREEK DIVIDE 9000 3.1 3.4 91 4.9 4.5 109
THUMB DIVIDE 7980 1.8 2.0 90 4.5 3.4 132
TOGWOTEE PASS 9580 3.2 4.4 73 5.0 4.6 109
TWO OCEAN PLATEAU 9240 6.6 5.2 127 5.8 5.1 114
WILLOW CREEK 8380 2.3 4.1 56 7.6 6.0 127
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Basin wide percent of average 80 121
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 4.8 4.6 104 5.2 3.5 149
BLACK BEAR 8170 5.7 5.3 108 8.5 6.3 135
CANYON 7870 1.5 1.7 88 3.3 3.1 106
FISHER CREEK 9100 4.8 5.1 94 7.2 5.9 122
MADISON PLATEAU 7750 2.9 3.2 91 6.9 4.3 160
NORTHEAST ENTRANCE 7350 .7 1.0 70* 3.0 2.5 120
PARKER PEAK 9400 4.4 4.3 102 6.4 3.6 178
SYLVAN LAKE 8420 2.6 3.8 68 6.6 4.3 153
THUMB DIVIDE 7980 1.8 2.0 90 4.5 3.4 132
TWO OCEAN PLATEAU 9240 6.6 5.2 127 5.8 5.1 114
WHISKEY CREEK 6800 2.0 1.8 111 5.4 3.7 146
WHITE MILL 8700 2.6 3.8 68 5.0 4.6 109
WOLVERINE 7650 2.5 1.4 179 4.3 2.9 148
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Basin wide percent of average 99 136
WIND RIVER
BURROUGHS CREEK 8750 1.4 2.1 67 2.3 2.9 79
CASTLE CREEK 8400 1.0 -M * 2.1 -M *
COLD SPRINGS 9630 1.2 2.0 60 2.4 3.0 80
DEER PARK 9700 2.5 3.7 68 4.7 4.6 102
HOBBS PARK 10100 3.6 3.6 100 3.6 3.3 109
LITTLE WARM 9370 .6 2.1 29 2.3 3.0 77
SOUTH PASS 9040 2.3 3.0 77 3.7 3.8 97
ST. LAWRENCE ALT 8620 .4 1.6 25 1.9 2.6 73
TOGWOTEE PASS 9580 3.2 4.4 73 5.0 4.6 109
TOWNSEND CREEK 8700 1.3 1.9 68 3.6 3.2 113
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Basin wide percent of average 68 95
BIGHORN BASIN
BALD MTN. 9380 4.8 4.3 112 4.8 3.7 130
BEAR TRAP MEADOW 8200 .7 1.1 64 2.4 2.6 92
BLACKWATER 9780 5.6 5.0 112 5.6 4.4 127
BONE SPRINGS DIV 9350 5.2 4.1 127 5.4 3.6 150
EVENING STAR 9200 4.2 5.1 82 7.4 5.0 148
GRAVE SPRINGS 8550 .7 2.0 35 2.9 2.7 107
KIRWIN 9550 2.8 2.9 97 4.0 2.9 138
MARQUETTE 8760 1.1 -M * 4.2 3.2 131
MIDDLE POWDER 7760 1.4 2.4 58 4.8 3.8 126
OWL CREEK 8975 1.2 1.4 86 1.9 1.7 112
POWDER RIVER PASS 9480 2.8 2.3 122 4.1 2.9 141
SHELL CREEK 9580 5.4 3.9 138 4.9 3.1 158
SYLVAN LAKE 8420 2.6 3.8 68 6.6 4.3 153
SYLVAN ROAD 7120 1.6 1.7 94 3.9 3.8 103
TIMBER CREEK 7950 .7 1.7 41 4.2 2.4 175
YOUNTS PEAK 8350 2.2 2.7 81 3.6 3.2 113
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Basin wide percent of average 94 133
SHOSHONE RIVER
BLACKWATER 9780 5.6 5.0 112 5.6 4.4 127
EVENING STAR 9200 4.2 5.1 82 7.4 5.0 148
KIRWIN 9550 2.8 2.9 97 4.0 2.9 138
MARQUETTE 8760 1.1 -M * 4.2 3.2 131
SYLVAN LAKE 8420 2.6 3.8 68 6.6 4.3 153
SYLVAN ROAD 7120 1.6 1.7 94 3.9 3.8 103
YOUNTS PEAK 8350 2.2 2.7 81 3.6 3.2 113
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Basin wide percent of average 90 132
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .7 1.1 64 2.4 2.6 92
BIG GOOSE 7990 2.4 1.4 171 6.0 2.6 231
BONE SPRINGS DIV 9350 5.2 4.1 127 5.4 3.6 150
BURGESS JUNCTION 7880 2.5 2.6 96 5.5 3.2 172
CLOUD PEAK RESERVOIR 9860 3.4 2.7 126 5.4 3.8 142
DOME LAKE 8880 3.4 3.2 106 6.5 3.6 181
GRAVE SPRINGS 8550 .7 2.0 35 2.9 2.7 107
HANSEN SAWMILL 8360 1.1 1.3 85 3.0 2.6 115
LITTLE GOOSE 8870 2.9 -M * 6.6 -M *
MIDDLE POWDER 7760 1.4 2.4 58 4.8 3.8 126
POWDER RIVER PASS 9480 2.8 2.3 122 4.1 2.9 141
SOLDIER PARK 8720 .6 -M * 4.0 -M *
SUCKER CREEK 8880 4.3 2.3 187 5.4 3.4 159
TIE CREEK 6870 1.0 1.2 83 6.0 3.1 194
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Basin wide percent of average 109 151
BELLE FOURCHE
BLIND PARK 6890 .8 1.5 53 1.7 3.5 49
COLE CANYON 5910 .0 1.5 0 1.7 2.5 68
NORTH RAPID CREEK 6130 1.2 1.0 120 1.2 3.2 38
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Basin wide percent of average 50 50
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 5.8 -M * 7.4 -M *
CINNABAR PARK 9574 2.9 3.3 88 5.5 4.4 125
COLUMBINE 9160 3.0 2.5 120* 5.3 4.0 133
DIVIDE PEAK 8880 3.5 3.1 113 6.6 4.2 157
ELK RIVER 8700 2.4 1.5 160* 4.3 3.4 126
JOE WRIGHT 10120 2.8 4.4 64 6.6 5.3 125
NORTH FRENCH CREEK 10130 4.3 5.1 84 5.5 5.2 106
OLD BATTLE 10000 6.4 5.5 116 8.2 5.8 141
SAGE CREEK BASIN 7850 2.1 1.8 117 3.7 2.4 154
SOUTH BRUSH CREEK 8440 1.5 1.6 94 4.0 3.8 105
TOWER 10500 6.0 7.4 81 8.1 6.7 121
WEBBER SPRINGS 9250 4.2 3.8 111 7.1 5.0 142
WILLOW CREEK PASS 9540 3.2 2.3 139 3.6 3.1 116
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Basin wide percent of average 100 129
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 2.6 3.7 70 4.9 4.1 120
CASPER MTN. 7900 2.8 3.0 93 6.6 3.8 174
DEADMAN HILL 10220 5.3 3.5 151 5.4 3.7 146
DEER PARK 9700 2.5 3.7 68 4.7 4.6 102
LAPRELE CREEK 8375 1.5 2.0 75 3.9 3.0 130
RENO HILL 8400 3.1 2.8 111 5.0 3.8 132
ROACH 9700 3.7 2.5 148 5.7 3.6 158
SAND LAKE 10050 5.7 5.8 98 6.2 4.8 129
SOUTH PASS 9040 2.3 3.0 77 3.7 3.8 97
WINDY PEAK 7900 1.5 1.3 115 3.1 2.6 119
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Basin wide percent of average 99 130
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 2.7 1.1 245* 4.2 3.0 140
DIVIDE PEAK 8880 3.5 3.1 113 6.6 4.2 157
OLD BATTLE 10000 6.4 5.5 116 8.2 5.8 141
SANDSTONE RS 8150 1.6 1.2 133* 3.5 3.7 95
WHISKEY PARK 8950 3.2 3.5 91 6.6 4.8 138
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Basin wide percent of average 121 135
UPPER GREEN RIVER
BIG SANDY OPENING 9080 2.3 2.3 100 3.3 2.9 114
BLIND BULL SUM 8650 2.3 3.7 62 3.3 3.8 87
EAST RIM DIVIDE 7930 .9 1.6 56 2.8 2.3 122
ELKHART PARK G.S. 9400 1.8 1.9 95 3.8 3.0 127
GROS VENTRE SUMMIT 8750 1.3 2.4 54 2.9 2.9 100
GUNSIGHT PASS 9820 1.8 -M * 3.7 -M *
KENDALL R.S. 7740 1.6 1.6 100 3.6 2.6 138
LOOMIS PARK 8240 1.3 2.2 59 3.7 3.1 119
NEW FORK LAKE 8340 1.8 1.4 129 3.3 2.6 127
POCKET CREEK 9360 2.4 -M * 3.3 -M *
SNIDER BASIN 8060 1.2 1.8 67 2.5 2.8 89
SPRING CREEK DIVIDE 9000 3.1 3.4 91 4.9 4.5 109
TRIPLE PEAK 8500 2.5 3.1 81 4.8 3.9 123
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Basin wide percent of average 79 113
LOWER GREEN RIVER
HAMS FORK 7840 1.0 1.1 91* 3.3 2.3 143
HEWINTA 9519 .9 1.4 64 4.2 3.5 120
HICKERSON PARK 9145 .9 .9 100 5.1 2.5 204
HOLE-IN-ROCK 9150 1.1 .9 122 4.5 2.3 196
INDIAN CREEK 9425 3.5 3.5 100 4.5 4.3 105
KELLEY R.S. 8180 2.2 2.2 100 4.5 3.6 125
STEEL CREEK PARK 10200 2.0 2.6 77 4.7 3.6 131
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Basin wide percent of average 92 139
UPPER BEAR RIVER
BUG LAKE 7950 1.9 2.3 83 4.5 3.7 122
HAYDEN FORK 9212 1.9 1.7 112 5.8 4.0 145
KELLEY R.S. 8180 2.2 2.2 100 4.5 3.6 125
LILY LAKE 9156 1.2 1.7 71 4.2 3.8 111
MONTE CRISTO 8960 3.0 2.9 103* 4.9 4.5 109
SALT RIVER SUMMIT 7760 1.5 1.1 136* 3.3 3.1 106
TRIAL LAKE 9992 3.6 3.4 106 3.9 4.4 89
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Basin wide percent of average 100 115
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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.
