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 SUNDAY: NOVEMBER 13 , 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 1.6 1.8 89* 4.9 3.4 144
COTTONWOOD CREEK 7670 1.1 2.1 52* 5.6 4.9 114
GRAND TARGHEE 9260 6.1 -M * 6.8 -M *
GRANITE CREEK 6770 1.2 1.4 86* 3.4 3.0 113
GRASSY LAKE 7265 2.0 3.4 59* 6.9 5.6 123
GROS VENTRE SUMMIT 8750 1.2 2.3 52 2.9 2.8 104
GUNSIGHT PASS 9820 1.7 -M * 3.5 -M *
LEWIS LAKE DIVIDE 7850 2.0 3.4 59* 6.4 5.5 116
PHILLIPS BENCH 8200 1.2 3.1 39 3.8 4.1 93
SALT RIVER SUMMIT 7760 1.1 1.0 110* 2.9 3.0 97
SNAKE RIVER STATION 6920 1.3 1.6 81* 5.4 3.7 146
SPRING CREEK DIVIDE 9000 2.4 3.3 73 4.3 4.3 100
THUMB DIVIDE 7980 1.5 1.9 79* 4.3 3.3 130
TOGWOTEE PASS 9580 2.8 4.3 65 4.7 4.5 104
TWO OCEAN PLATEAU 9240 6.2 5.1 122 5.5 4.9 112
WILLOW CREEK 8380 1.7 3.9 44 7.0 5.8 121
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Basin wide percent of average 71* 116
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 4.6 4.4 105 4.9 3.4 144
BLACK BEAR 8170 5.2 5.1 102 8.2 6.1 134
CANYON 7870 1.4 1.5 93 3.1 3.0 103
FISHER CREEK 9100 4.3 4.9 88 6.7 5.6 120
MADISON PLATEAU 7750 2.7 3.0 90 6.7 4.1 163
NORTHEAST ENTRANCE 7350 .6 1.0 60* 2.9 2.4 121
PARKER PEAK 9400 4.1 4.1 100 6.0 3.5 171
SYLVAN LAKE 8420 2.4 3.6 67 6.3 4.2 150
THUMB DIVIDE 7980 1.5 1.9 79* 4.3 3.3 130
TWO OCEAN PLATEAU 9240 6.2 5.1 122 5.5 4.9 112
WHISKEY CREEK 6800 1.9 1.7 112* 5.3 3.6 147
WHITE MILL 8700 2.3 3.6 64 4.7 4.4 107
WOLVERINE 7650 2.2 1.3 169 4.1 2.8 146
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Basin wide percent of average 96 134
WIND RIVER
BURROUGHS CREEK 8750 1.2 2.0 60 2.2 2.8 79
CASTLE CREEK 8400 .9 -M * 1.9 -M *
COLD SPRINGS 9630 1.1 2.0 55 2.3 2.9 79
DEER PARK 9700 2.6 3.6 72 4.7 4.5 104
HOBBS PARK 10100 3.4 3.4 100 3.6 3.2 113
LITTLE WARM 9370 .5 2.0 25 2.1 2.9 72
SOUTH PASS 9040 2.3 2.8 82 3.6 3.6 100
ST. LAWRENCE ALT 8620 .2 1.5 13 1.9 2.6 73
TOGWOTEE PASS 9580 2.8 4.3 65 4.7 4.5 104
TOWNSEND CREEK 8700 1.2 1.8 67 3.6 3.2 113
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Basin wide percent of average 65 95
BIGHORN BASIN
BALD MTN. 9380 4.8 4.2 114 4.8 3.6 133
BEAR TRAP MEADOW 8200 .6 1.0 60 2.3 2.5 92
BLACKWATER 9780 5.2 4.8 108 5.2 4.3 121
BONE SPRINGS DIV 9350 5.0 3.9 128 5.3 3.5 151
EVENING STAR 9200 3.7 4.8 77 6.9 4.8 144
GRAVE SPRINGS 8550 .7 1.9 37 2.9 2.7 107
KIRWIN 9550 2.6 2.9 90 3.8 2.8 136
MARQUETTE 8760 -M -M * 4.2 3.2 131
MIDDLE POWDER 7760 1.4 2.3 61 4.9 3.7 132
OWL CREEK 8975 1.1 1.3 85 1.9 1.7 112
POWDER RIVER PASS 9480 2.8 2.2 127 4.0 2.8 143
SHELL CREEK 9580 5.3 3.8 139 4.8 3.0 160
SYLVAN LAKE 8420 2.4 3.6 67 6.3 4.2 150
SYLVAN ROAD 7120 1.3 1.5 87 3.6 3.7 97
TIMBER CREEK 7950 .6 1.6 38 4.2 2.3 183
YOUNTS PEAK 8350 1.8 2.6 69 3.4 3.1 110
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Basin wide percent of average 93 132
SHOSHONE RIVER
BLACKWATER 9780 5.2 4.8 108 5.2 4.3 121
EVENING STAR 9200 3.7 4.8 77 6.9 4.8 144
KIRWIN 9550 2.6 2.9 90 3.8 2.8 136
MARQUETTE 8760 -M -M * 4.2 3.2 131
SYLVAN LAKE 8420 2.4 3.6 67 6.3 4.2 150
SYLVAN ROAD 7120 1.3 1.5 87 3.6 3.7 97
YOUNTS PEAK 8350 1.8 2.6 69 3.4 3.1 110
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Basin wide percent of average 84 128
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .6 1.0 60 2.3 2.5 92
BIG GOOSE 7990 2.3 1.4 164 5.9 2.5 236
BONE SPRINGS DIV 9350 5.0 3.9 128 5.3 3.5 151
BURGESS JUNCTION 7880 2.4 2.4 100 5.4 3.1 174
CLOUD PEAK RESERVOIR 9860 3.3 2.5 132 5.0 3.7 135
DOME LAKE 8880 3.4 3.1 110 6.4 3.6 178
GRAVE SPRINGS 8550 .7 1.9 37 2.9 2.7 107
HANSEN SAWMILL 8360 1.1 1.3 85 2.9 2.5 116
LITTLE GOOSE 8870 2.9 -M * 6.5 -M *
MIDDLE POWDER 7760 1.4 2.3 61 4.9 3.7 132
POWDER RIVER PASS 9480 2.8 2.2 127 4.0 2.8 143
SOLDIER PARK 8720 .6 -M * 4.0 -M *
SUCKER CREEK 8880 4.2 2.1 200 5.3 3.4 156
TIE CREEK 6870 .9 1.2 75 5.9 3.1 190
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Basin wide percent of average 111 151
BELLE FOURCHE
BLIND PARK 6890 .7 1.4 50 1.6 3.5 46
COLE CANYON 5910 .0 1.4 0 1.7 2.4 71
NORTH RAPID CREEK 6130 1.3 .9 144 1.2 3.1 39
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Basin wide percent of average 54 50
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 4.3 -M * 5.9 -M *
CINNABAR PARK 9574 2.4 3.1 77 4.9 4.2 117
COLUMBINE 9160 1.8 2.4 75* 4.3 3.8 113
DIVIDE PEAK 8880 2.4 3.0 80 5.5 4.1 134
ELK RIVER 8700 1.5 1.4 107* 3.5 3.3 106
JOE WRIGHT 10120 2.6 4.2 62 5.9 5.2 113
NORTH FRENCH CREEK 10130 3.5 5.0 70 4.8 5.1 94
OLD BATTLE 10000 4.9 5.3 92 6.4 5.7 112
SAGE CREEK BASIN 7850 1.5 1.7 88 3.1 2.3 135
SOUTH BRUSH CREEK 8440 1.1 1.5 73 3.7 3.8 97
TOWER 10500 4.3 7.1 61 6.4 6.5 98
WEBBER SPRINGS 9250 2.9 3.7 78 5.8 4.9 118
WILLOW CREEK PASS 9540 3.1 2.2 141 3.3 3.0 110
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Basin wide percent of average 79 111
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.9 3.6 53 4.3 3.9 110
CASPER MTN. 7900 2.8 2.9 97 6.6 3.7 178
DEADMAN HILL 10220 4.9 3.4 144 4.9 3.6 136
DEER PARK 9700 2.6 3.6 72 4.7 4.5 104
LAPRELE CREEK 8375 1.5 1.9 79 3.9 3.0 130
RENO HILL 8400 3.1 2.7 115 4.9 3.7 132
ROACH 9700 3.0 2.4 125 5.0 3.5 143
SAND LAKE 10050 4.9 5.6 88 5.4 4.7 115
SOUTH PASS 9040 2.3 2.8 82 3.6 3.6 100
WINDY PEAK 7900 1.5 1.2 125 3.1 2.6 119
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Basin wide percent of average 95 126
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.3 1.1 118* 2.9 2.9 100
DIVIDE PEAK 8880 2.4 3.0 80 5.5 4.1 134
OLD BATTLE 10000 4.9 5.3 92 6.4 5.7 112
SANDSTONE RS 8150 1.0 1.1 91* 2.7 3.6 75
WHISKEY PARK 8950 1.7 3.4 50 5.0 4.7 106
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Basin wide percent of average 81 107
UPPER GREEN RIVER
BIG SANDY OPENING 9080 2.1 2.3 91 3.2 2.8 114
BLIND BULL SUM 8650 1.8 3.5 51 3.1 3.7 84
EAST RIM DIVIDE 7930 .7 1.5 47 2.6 2.2 118
ELKHART PARK G.S. 9400 1.5 1.8 83 3.5 2.9 121
GROS VENTRE SUMMIT 8750 1.2 2.3 52 2.9 2.8 104
GUNSIGHT PASS 9820 1.7 -M * 3.5 -M *
KENDALL R.S. 7740 1.2 1.5 80 3.1 2.5 124
LOOMIS PARK 8240 1.0 2.1 48 3.3 3.0 110
NEW FORK LAKE 8340 1.5 1.3 115 3.1 2.5 124
POCKET CREEK 9360 2.2 -M * 3.3 -M *
SNIDER BASIN 8060 .8 1.7 47 2.2 2.7 81
SPRING CREEK DIVIDE 9000 2.4 3.3 73 4.3 4.3 100
TRIPLE PEAK 8500 2.0 2.9 69 4.2 3.8 111
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Basin wide percent of average 67 107
LOWER GREEN RIVER
HAMS FORK 7840 .6 1.1 55* 3.0 2.2 136
HEWINTA 9519 .9 1.3 69 4.0 3.4 118
HICKERSON PARK 9145 1.0 .9 111 5.1 2.4 213
HOLE-IN-ROCK 9150 1.4 .9 156 4.5 2.3 196
INDIAN CREEK 9425 2.7 3.3 82 3.9 4.2 93
KELLEY R.S. 8180 1.8 2.1 86 4.1 3.5 117
STEEL CREEK PARK 10200 1.9 2.5 76 4.6 3.5 131
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Basin wide percent of average 85 136
UPPER BEAR RIVER
BUG LAKE 7950 1.5 2.2 68 4.0 3.6 111
HAYDEN FORK 9212 1.6 1.6 100* 5.6 3.8 147
KELLEY R.S. 8180 1.8 2.1 86 4.1 3.5 117
LILY LAKE 9156 1.0 1.7 59 3.9 3.7 105
MONTE CRISTO 8960 2.2 2.8 79* 4.3 4.4 98
SALT RIVER SUMMIT 7760 1.1 1.0 110* 2.9 3.0 97
TRIAL LAKE 9992 3.0 3.3 91 3.4 4.3 79
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Basin wide percent of average 83 107
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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.
