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 FRIDAY: NOVEMBER 11 , 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 .7 1.5 47* 4.3 3.2 134
COTTONWOOD CREEK 7670 .5 1.9 26* 5.1 4.6 111
GRAND TARGHEE 9260 4.1 -M * 6.3 -M *
GRANITE CREEK 6770 .3 1.2 25* 2.7 2.8 96
GRASSY LAKE 7265 1.0 3.1 32* 6.1 5.2 117
GROS VENTRE SUMMIT 8750 .7 2.1 33 2.4 2.6 92
GUNSIGHT PASS 9820 1.2 -M * 3.0 -M *
LEWIS LAKE DIVIDE 7850 .8 3.0 27* 5.2 5.0 104
PHILLIPS BENCH 8200 .2 2.8 7* 2.8 3.8 74
SALT RIVER SUMMIT 7760 .4 .9 44* 2.3 2.9 79
SNAKE RIVER STATION 6920 .6 1.4 43* 4.7 3.4 138
SPRING CREEK DIVIDE 9000 1.7 2.9 59 3.6 4.0 90
THUMB DIVIDE 7980 .5 1.7 29* 3.5 3.1 113
TOGWOTEE PASS 9580 2.1 4.0 53 4.1 4.2 98
TWO OCEAN PLATEAU 9240 5.2 4.7 111 4.7 4.6 102
WILLOW CREEK 8380 .7 3.5 20 6.1 5.4 113
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Basin wide percent of average 44* 105
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 3.9 4.1 95 4.4 3.2 138
BLACK BEAR 8170 3.8 4.6 83 6.8 5.6 121
CANYON 7870 1.0 1.3 77* 2.9 2.8 104
FISHER CREEK 9100 3.4 4.6 74 6.0 5.2 115
MADISON PLATEAU 7750 1.5 2.8 54 5.4 3.8 142
NORTHEAST ENTRANCE 7350 .4 .9 44* 2.7 2.3 117
PARKER PEAK 9400 3.3 3.9 85 5.4 3.3 164
SYLVAN LAKE 8420 1.7 3.3 52 5.7 3.9 146
THUMB DIVIDE 7980 .5 1.7 29* 3.5 3.1 113
TWO OCEAN PLATEAU 9240 5.2 4.7 111 4.7 4.6 102
WHISKEY CREEK 6800 1.0 1.5 67* 4.4 3.4 129
WHITE MILL 8700 1.9 3.3 58 4.5 4.1 110
WOLVERINE 7650 1.6 1.1 145* 3.9 2.6 150
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Basin wide percent of average 77 126
WIND RIVER
BURROUGHS CREEK 8750 .7 1.8 39 2.0 2.6 77
CASTLE CREEK 8400 .7 -M * 1.7 -M *
COLD SPRINGS 9630 1.1 1.8 61 2.4 2.8 86
DEER PARK 9700 1.6 3.6 44 3.7 4.1 90
HOBBS PARK 10100 2.9 3.1 94 3.3 3.1 106
LITTLE WARM 9370 .3 1.8 17 2.2 2.7 81
SOUTH PASS 9040 1.2 2.7 44 2.9 3.4 85
ST. LAWRENCE ALT 8620 .4 1.5 27 1.7 2.4 71
TOGWOTEE PASS 9580 2.1 4.0 53 4.1 4.2 98
TOWNSEND CREEK 8700 1.1 1.7 65 3.5 3.0 117
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Basin wide percent of average 52 91
BIGHORN BASIN
BALD MTN. 9380 4.8 3.9 123 4.9 3.4 144
BEAR TRAP MEADOW 8200 .5 1.0 50 2.5 2.4 104
BLACKWATER 9780 4.5 4.4 102 4.8 4.0 120
BONE SPRINGS DIV 9350 4.9 3.7 132 5.3 3.4 156
EVENING STAR 9200 3.3 4.5 73 6.5 4.4 148
GRAVE SPRINGS 8550 .6 1.8 33 2.8 2.6 108
KIRWIN 9550 2.6 2.7 96 3.7 2.7 137
MARQUETTE 8760 .8 -M * 4.3 3.1 139
MIDDLE POWDER 7760 1.1 2.1 52 4.9 3.5 140
OWL CREEK 8975 1.2 1.3 92 2.1 1.6 131
POWDER RIVER PASS 9480 2.5 2.1 119 3.8 2.7 141
SHELL CREEK 9580 5.1 3.6 142 4.8 2.9 166
SYLVAN LAKE 8420 1.7 3.3 52 5.7 3.9 146
SYLVAN ROAD 7120 .9 1.3 69 3.4 3.4 100
TIMBER CREEK 7950 .7 1.6 44 4.2 2.2 191
YOUNTS PEAK 8350 1.3 2.4 54 3.0 2.9 103
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Basin wide percent of average 90 136
SHOSHONE RIVER
BLACKWATER 9780 4.5 4.4 102 4.8 4.0 120
EVENING STAR 9200 3.3 4.5 73 6.5 4.4 148
KIRWIN 9550 2.6 2.7 96 3.7 2.7 137
MARQUETTE 8760 .8 -M * 4.3 3.1 139
SYLVAN LAKE 8420 1.7 3.3 52 5.7 3.9 146
SYLVAN ROAD 7120 .9 1.3 69 3.4 3.4 100
YOUNTS PEAK 8350 1.3 2.4 54 3.0 2.9 103
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Basin wide percent of average 77 129
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .5 1.0 50 2.5 2.4 104
BIG GOOSE 7990 2.4 1.3 185 6.0 2.5 240
BONE SPRINGS DIV 9350 4.9 3.7 132 5.3 3.4 156
BURGESS JUNCTION 7880 2.4 2.4 100 5.6 3.0 187
CLOUD PEAK RESERVOIR 9860 3.1 2.4 129 5.2 3.5 149
DOME LAKE 8880 3.4 2.9 117 6.3 3.4 185
GRAVE SPRINGS 8550 .6 1.8 33 2.8 2.6 108
HANSEN SAWMILL 8360 1.0 1.3 77 2.8 2.4 117
LITTLE GOOSE 8870 2.8 -M * 6.5 -M *
MIDDLE POWDER 7760 1.1 2.1 52 4.9 3.5 140
POWDER RIVER PASS 9480 2.5 2.1 119 3.8 2.7 141
SOLDIER PARK 8720 .3 -M * 3.8 -M *
SUCKER CREEK 8880 4.2 2.1 200 5.5 3.2 172
TIE CREEK 6870 1.0 1.2 83 6.0 3.0 200
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Basin wide percent of average 112 159
BELLE FOURCHE
BLIND PARK 6890 .8 1.4 57 1.5 3.3 45
COLE CANYON 5910 .0 1.4 0 1.6 2.3 70
NORTH RAPID CREEK 6130 1.2 .9 133 1.2 3.0 40
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Basin wide percent of average 54 50
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 3.4 -M * 5.0 -M *
CINNABAR PARK 9574 2.0 2.9 69 4.4 4.0 110
COLUMBINE 9160 1.1 2.1 52* 3.6 3.6 100
DIVIDE PEAK 8880 2.0 2.8 71 5.1 3.8 134
ELK RIVER 8700 .8 1.3 62* 3.0 3.1 97
JOE WRIGHT 10120 1.9 4.0 48 5.4 4.9 110
NORTH FRENCH CREEK 10130 3.2 4.7 68 4.5 4.8 94
OLD BATTLE 10000 3.7 4.9 76 5.3 5.3 100
SAGE CREEK BASIN 7850 1.1 1.6 69 2.8 2.2 127
SOUTH BRUSH CREEK 8440 .8 1.4 57 3.5 3.6 97
TOWER 10500 4.0 6.4 63 5.3 6.0 88
WEBBER SPRINGS 9250 1.7 3.4 50 4.6 4.6 100
WILLOW CREEK PASS 9540 2.7 2.0 135 2.9 2.8 104
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Basin wide percent of average 67 103
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.6 3.3 48 3.9 3.7 105
CASPER MTN. 7900 2.9 2.7 107 6.5 3.6 181
DEADMAN HILL 10220 4.1 3.2 128 4.5 3.4 132
DEER PARK 9700 1.6 3.6 44 3.7 4.1 90
LAPRELE CREEK 8375 1.5 1.7 88 3.8 2.8 136
RENO HILL 8400 3.2 2.6 123 5.0 3.5 143
ROACH 9700 2.4 2.2 109 4.4 3.3 133
SAND LAKE 10050 4.3 5.2 83 5.2 4.4 118
SOUTH PASS 9040 1.2 2.7 44 2.9 3.4 85
WINDY PEAK 7900 1.4 1.1 127 2.9 2.4 121
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Basin wide percent of average 86 124
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.0 1.0 100* 2.6 2.7 96
DIVIDE PEAK 8880 2.0 2.8 71 5.1 3.8 134
OLD BATTLE 10000 3.7 4.9 76 5.3 5.3 100
SANDSTONE RS 8150 1.0 1.0 100* 2.6 3.4 76
WHISKEY PARK 8950 1.1 3.1 35 4.3 4.4 98
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Basin wide percent of average 69 102
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.4 2.1 67 2.5 2.6 96
BLIND BULL SUM 8650 1.0 3.2 31 2.5 3.4 74
EAST RIM DIVIDE 7930 .3 1.3 23* 2.3 2.1 110
ELKHART PARK G.S. 9400 1.4 1.6 88 3.3 2.8 118
GROS VENTRE SUMMIT 8750 .7 2.1 33 2.4 2.6 92
GUNSIGHT PASS 9820 1.2 -M * 3.0 -M *
KENDALL R.S. 7740 .6 1.4 43* 2.4 2.4 100
LOOMIS PARK 8240 .3 1.9 16 2.8 2.8 100
NEW FORK LAKE 8340 1.1 1.2 92 2.9 2.3 126
POCKET CREEK 9360 1.8 -M * 3.0 -M *
SNIDER BASIN 8060 .3 1.5 20 1.8 2.5 72
SPRING CREEK DIVIDE 9000 1.7 2.9 59 3.6 4.0 90
TRIPLE PEAK 8500 1.1 2.6 42 3.4 3.5 97
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Basin wide percent of average 45 96
LOWER GREEN RIVER
HAMS FORK 7840 .1 .9 11* 2.8 2.1 133
HEWINTA 9519 .7 1.3 54 3.7 3.3 112
HICKERSON PARK 9145 .6 .8 75* 4.8 2.3 209
HOLE-IN-ROCK 9150 1.2 .8 150 4.4 2.2 200
INDIAN CREEK 9425 1.9 3.0 63 3.6 3.9 92
KELLEY R.S. 8180 1.0 1.9 53 3.3 3.3 100
STEEL CREEK PARK 10200 1.5 2.4 63 4.4 3.3 133
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Basin wide percent of average 63 132
UPPER BEAR RIVER
BUG LAKE 7950 .0 2.1 0* 2.9 3.4 85
HAYDEN FORK 9212 1.0 1.5 67* 4.9 3.6 136
KELLEY R.S. 8180 1.0 1.9 53 3.3 3.3 100
LILY LAKE 9156 .4 1.6 25 3.5 3.5 100
MONTE CRISTO 8960 1.2 2.6 46* 3.5 4.1 85
SALT RIVER SUMMIT 7760 .4 .9 44* 2.3 2.9 79
TRIAL LAKE 9992 2.0 3.1 65 2.8 4.0 70
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Basin wide percent of average 44* 94
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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.