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 15 , 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 2.1 2.0 105 5.4 3.7 146
COTTONWOOD CREEK 7670 1.7 2.4 71* 6.2 5.2 119
GRAND TARGHEE 9260 6.8 -M * 7.2 -M *
GRANITE CREEK 6770 1.5 1.6 94* 3.7 3.2 116
GRASSY LAKE 7265 3.0 3.9 77 7.6 6.0 127
GROS VENTRE SUMMIT 8750 1.3 2.4 54 3.0 3.0 100
GUNSIGHT PASS 9820 1.9 -M * 3.7 -M *
LEWIS LAKE DIVIDE 7850 2.0 3.8 53 7.1 5.9 120
PHILLIPS BENCH 8200 1.8 3.4 53 4.4 4.4 100
SALT RIVER SUMMIT 7760 1.5 1.2 125* 3.3 3.2 103
SNAKE RIVER STATION 6920 1.5 1.9 79* 5.7 3.9 146
SPRING CREEK DIVIDE 9000 3.1 3.6 86 4.9 4.6 107
THUMB DIVIDE 7980 1.8 2.1 86 4.5 3.5 129
TOGWOTEE PASS 9580 3.3 4.6 72 5.1 4.8 106
TWO OCEAN PLATEAU 9240 6.7 5.4 124 5.9 5.2 113
WILLOW CREEK 8380 2.3 4.3 53 7.6 6.2 123
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Basin wide percent of average 79 118
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 5.0 4.7 106 5.4 3.7 146
BLACK BEAR 8170 5.7 5.5 104 8.5 6.5 131
CANYON 7870 1.5 1.7 88 3.3 3.2 103
FISHER CREEK 9100 4.9 5.3 92 7.4 6.1 121
MADISON PLATEAU 7750 3.0 3.3 91 6.9 4.4 157
NORTHEAST ENTRANCE 7350 .9 1.1 82* 3.1 2.6 119
PARKER PEAK 9400 4.5 4.4 102 6.5 3.7 176
SYLVAN LAKE 8420 2.6 3.9 67 6.6 4.5 147
THUMB DIVIDE 7980 1.8 2.1 86 4.5 3.5 129
TWO OCEAN PLATEAU 9240 6.7 5.4 124 5.9 5.2 113
WHISKEY CREEK 6800 2.0 1.9 105 5.4 3.8 142
WHITE MILL 8700 2.8 3.9 72 5.2 4.8 108
WOLVERINE 7650 2.7 1.5 180 4.4 2.9 152
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Basin wide percent of average 99 133
WIND RIVER
BURROUGHS CREEK 8750 1.4 2.2 64 2.4 3.0 80
CASTLE CREEK 8400 1.0 -M * 2.1 -M *
COLD SPRINGS 9630 1.3 2.1 62 2.4 3.1 77
DEER PARK 9700 2.3 3.7 62 4.8 4.8 100
HOBBS PARK 10100 3.5 3.7 95 3.8 3.4 112
LITTLE WARM 9370 .7 2.2 32 2.5 3.1 81
SOUTH PASS 9040 2.4 3.1 77 3.8 3.9 97
ST. LAWRENCE ALT 8620 .4 1.8 22 2.0 2.7 74
TOGWOTEE PASS 9580 3.3 4.6 72 5.1 4.8 106
TOWNSEND CREEK 8700 1.3 2.0 65 3.7 3.3 112
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Basin wide percent of average 65 95
BIGHORN BASIN
BALD MTN. 9380 5.0 4.5 111 4.9 3.8 129
BEAR TRAP MEADOW 8200 .7 1.1 64 2.4 2.6 92
BLACKWATER 9780 5.6 5.1 110 5.7 4.6 124
BONE SPRINGS DIV 9350 5.3 4.1 129 5.4 3.7 146
EVENING STAR 9200 4.4 5.2 85 7.6 5.1 149
GRAVE SPRINGS 8550 .8 2.0 40 2.9 2.8 104
KIRWIN 9550 3.0 3.0 100 4.2 3.0 140
MARQUETTE 8760 .5 -M * 4.2 3.3 127
MIDDLE POWDER 7760 1.4 2.5 56 4.9 3.8 129
OWL CREEK 8975 1.2 1.5 80 2.0 1.8 111
POWDER RIVER PASS 9480 2.9 2.3 126 4.1 2.9 141
SHELL CREEK 9580 5.5 3.9 141 4.9 3.2 153
SYLVAN LAKE 8420 2.6 3.9 67 6.6 4.5 147
SYLVAN ROAD 7120 1.6 1.7 94 3.9 4.0 98
TIMBER CREEK 7950 .6 1.9 32 4.2 2.4 175
YOUNTS PEAK 8350 2.5 2.8 89 4.0 3.3 121
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Basin wide percent of average 95 131
SHOSHONE RIVER
BLACKWATER 9780 5.6 5.1 110 5.7 4.6 124
EVENING STAR 9200 4.4 5.2 85 7.6 5.1 149
KIRWIN 9550 3.0 3.0 100 4.2 3.0 140
MARQUETTE 8760 .5 -M * 4.2 3.3 127
SYLVAN LAKE 8420 2.6 3.9 67 6.6 4.5 147
SYLVAN ROAD 7120 1.6 1.7 94 3.9 4.0 98
YOUNTS PEAK 8350 2.5 2.8 89 4.0 3.3 121
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Basin wide percent of average 91 130
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .7 1.1 64 2.4 2.6 92
BIG GOOSE 7990 2.4 1.5 160 6.0 2.6 231
BONE SPRINGS DIV 9350 5.3 4.1 129 5.4 3.7 146
BURGESS JUNCTION 7880 2.6 2.7 96 5.5 3.2 172
CLOUD PEAK RESERVOIR 9860 3.8 2.7 141 5.8 3.8 153
DOME LAKE 8880 3.5 3.2 109 6.5 3.7 176
GRAVE SPRINGS 8550 .8 2.0 40 2.9 2.8 104
HANSEN SAWMILL 8360 1.3 1.3 100 3.1 2.6 119
LITTLE GOOSE 8870 3.0 -M * 6.7 -M *
MIDDLE POWDER 7760 1.4 2.5 56 4.9 3.8 129
POWDER RIVER PASS 9480 2.9 2.3 126 4.1 2.9 141
SOLDIER PARK 8720 1.0 -M * 4.1 -M *
SUCKER CREEK 8880 4.4 2.4 183 5.6 3.5 160
TIE CREEK 6870 1.0 1.2 83 6.1 3.1 197
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Basin wide percent of average 111 152
BELLE FOURCHE
BLIND PARK 6890 .8 1.5 53 1.8 3.6 50
COLE CANYON 5910 .1 1.5 7 1.8 2.5 72
NORTH RAPID CREEK 6130 1.3 1.0 130 1.2 3.2 38
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Basin wide percent of average 55 52
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 5.7 -M * 7.5 -M *
CINNABAR PARK 9574 2.9 3.4 85 5.5 4.5 122
COLUMBINE 9160 3.0 2.6 115 5.4 4.1 132
DIVIDE PEAK 8880 3.5 3.2 109 6.7 4.3 156
ELK RIVER 8700 2.4 1.6 150* 4.4 3.5 126
JOE WRIGHT 10120 2.6 4.5 58 6.6 5.5 120
NORTH FRENCH CREEK 10130 4.3 5.3 81 5.5 5.3 104
OLD BATTLE 10000 6.3 5.7 111 8.2 6.0 137
SAGE CREEK BASIN 7850 2.1 1.9 111 3.7 2.5 148
SOUTH BRUSH CREEK 8440 1.4 1.7 82 4.0 3.9 103
TOWER 10500 6.0 7.7 78 8.4 6.9 122
WEBBER SPRINGS 9250 4.2 4.0 105 7.1 5.2 137
WILLOW CREEK PASS 9540 3.0 2.4 125 3.7 3.2 116
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Basin wide percent of average 95 126
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 2.7 3.8 71 4.9 4.2 117
CASPER MTN. 7900 2.8 3.1 90 6.6 3.9 169
DEADMAN HILL 10220 5.2 3.6 144 5.4 3.8 142
DEER PARK 9700 2.3 3.7 62 4.8 4.8 100
LAPRELE CREEK 8375 1.6 2.0 80 3.9 3.1 126
RENO HILL 8400 3.2 2.9 110 5.0 3.9 128
ROACH 9700 3.7 2.6 142 5.7 3.7 154
SAND LAKE 10050 5.6 6.0 93 6.2 4.9 127
SOUTH PASS 9040 2.4 3.1 77 3.8 3.9 97
WINDY PEAK 7900 1.5 1.4 107 3.1 2.7 115
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Basin wide percent of average 96 127
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 2.7 1.1 245* 4.2 3.1 135
DIVIDE PEAK 8880 3.5 3.2 109 6.7 4.3 156
OLD BATTLE 10000 6.3 5.7 111 8.2 6.0 137
SANDSTONE RS 8150 1.5 1.3 115* 3.5 3.8 92
WHISKEY PARK 8950 3.2 3.7 86 6.6 5.0 132
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Basin wide percent of average 115 132
UPPER GREEN RIVER
BIG SANDY OPENING 9080 2.3 2.4 96 3.3 3.0 110
BLIND BULL SUM 8650 2.3 3.9 59 3.4 4.0 85
EAST RIM DIVIDE 7930 .9 1.7 53 2.8 2.3 122
ELKHART PARK G.S. 9400 1.8 2.0 90 3.8 3.1 123
GROS VENTRE SUMMIT 8750 1.3 2.4 54 3.0 3.0 100
GUNSIGHT PASS 9820 1.9 -M * 3.7 -M *
KENDALL R.S. 7740 1.7 1.7 100 3.6 2.7 133
LOOMIS PARK 8240 1.3 2.3 57 3.7 3.2 116
NEW FORK LAKE 8340 1.9 1.5 127 3.4 2.7 126
POCKET CREEK 9360 2.3 -M * 3.4 -M *
SNIDER BASIN 8060 1.2 1.9 63 2.6 2.9 90
SPRING CREEK DIVIDE 9000 3.1 3.6 86 4.9 4.6 107
TRIPLE PEAK 8500 2.6 3.3 79 4.8 4.1 117
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Basin wide percent of average 76 110
LOWER GREEN RIVER
HAMS FORK 7840 1.0 1.2 83* 3.2 2.4 133
HEWINTA 9519 .8 1.4 57 4.1 3.6 114
HICKERSON PARK 9145 .7 .9 78 5.1 2.5 204
HOLE-IN-ROCK 9150 1.1 1.0 110 4.5 2.4 188
INDIAN CREEK 9425 3.5 3.7 95 4.5 4.5 100
KELLEY R.S. 8180 2.1 2.3 91 4.5 3.7 122
STEEL CREEK PARK 10200 2.0 2.7 74 4.8 3.7 130
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Basin wide percent of average 85 135
UPPER BEAR RIVER
BUG LAKE 7950 1.8 2.4 75 4.5 3.8 118
HAYDEN FORK 9212 1.8 1.8 100 5.8 4.1 141
KELLEY R.S. 8180 2.1 2.3 91 4.5 3.7 122
LILY LAKE 9156 1.2 1.8 67 4.2 3.9 108
MONTE CRISTO 8960 2.9 3.0 97* 4.8 4.7 102
SALT RIVER SUMMIT 7760 1.5 1.2 125* 3.3 3.2 103
TRIAL LAKE 9992 3.6 3.5 103 4.3 4.5 96
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Basin wide percent of average 93 113
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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.
