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 8 , 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 .8 1.2 67* 4.3 2.8 154
COTTONWOOD CREEK 7670 .5 1.6 31* 5.1 4.1 124
GRAND TARGHEE 9260 4.0 -M * 6.0 -M *
GRANITE CREEK 6770 .3 1.0 30* 2.6 2.5 104
GRASSY LAKE 7265 1.0 2.5 40* 6.2 4.6 135
GROS VENTRE SUMMIT 8750 .7 1.9 37 2.2 2.4 92
GUNSIGHT PASS 9820 1.1 -M * 2.9 -M *
LEWIS LAKE DIVIDE 7850 .9 2.4 38* 5.3 4.4 120
PHILLIPS BENCH 8200 .0 2.4 0* 2.7 3.3 82
SALT RIVER SUMMIT 7760 .2 .7 29* 2.2 2.6 85
SNAKE RIVER STATION 6920 .6 1.1 55* 4.6 3.1 148
SPRING CREEK DIVIDE 9000 1.6 2.5 64* 3.6 3.6 100
THUMB DIVIDE 7980 .4 1.4 29* 3.4 2.7 126
TOGWOTEE PASS 9580 2.1 3.6 58 4.0 3.8 105
TWO OCEAN PLATEAU 9240 5.2 4.2 124 4.7 4.1 115
WILLOW CREEK 8380 .7 3.0 23* 6.0 4.9 122
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Basin wide percent of average 51* 116
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 3.7 3.8 97 4.3 2.9 148
BLACK BEAR 8170 3.7 4.0 93* 6.8 5.0 136
CANYON 7870 .9 1.2 75* 2.9 2.5 116
FISHER CREEK 9100 3.3 4.1 80 5.8 4.6 126
MADISON PLATEAU 7750 1.4 2.4 58* 5.3 3.4 156
NORTHEAST ENTRANCE 7350 .4 .7 57* 2.6 2.1 124
PARKER PEAK 9400 3.3 3.6 92 5.3 3.0 177
SYLVAN LAKE 8420 1.6 2.9 55 5.6 3.5 160
THUMB DIVIDE 7980 .4 1.4 29* 3.4 2.7 126
TWO OCEAN PLATEAU 9240 5.2 4.2 124 4.7 4.1 115
WHISKEY CREEK 6800 .9 1.3 69* 4.3 3.0 143
WHITE MILL 8700 1.9 3.0 63 4.3 3.7 116
WOLVERINE 7650 1.1 1.0 110* 3.8 2.4 158
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Basin wide percent of average 83* 138
WIND RIVER
BURROUGHS CREEK 8750 .7 1.6 44 1.8 2.3 78
CASTLE CREEK 8400 .6 -M * 1.6 -M *
COLD SPRINGS 9630 .9 1.6 56 2.4 2.5 96
DEER PARK 9700 1.5 3.3 45 3.4 3.6 94
HOBBS PARK 10100 2.8 3.0 93 3.1 2.8 111
LITTLE WARM 9370 .2 1.6 13 1.9 2.4 79
SOUTH PASS 9040 1.1 2.4 46 2.7 3.0 90
ST. LAWRENCE ALT 8620 .2 1.3 15 1.6 2.3 70
TOGWOTEE PASS 9580 2.1 3.6 58 4.0 3.8 105
TOWNSEND CREEK 8700 .8 1.6 50 3.5 2.8 125
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Basin wide percent of average 52 96
BIGHORN BASIN
BALD MTN. 9380 4.6 3.6 128 4.7 3.1 152
BEAR TRAP MEADOW 8200 .4 .8 50 2.5 2.2 114
BLACKWATER 9780 4.4 4.1 107 4.8 3.6 133
BONE SPRINGS DIV 9350 4.7 3.4 138 5.1 3.2 159
EVENING STAR 9200 3.2 4.0 80 6.2 3.9 159
GRAVE SPRINGS 8550 .5 1.6 31 2.8 2.5 112
KIRWIN 9550 2.4 2.6 92 3.4 2.4 142
MARQUETTE 8760 .6 -M * 4.0 2.9 138
MIDDLE POWDER 7760 1.1 1.9 58 4.6 3.3 139
OWL CREEK 8975 1.0 1.2 83 1.9 1.5 127
POWDER RIVER PASS 9480 2.5 1.8 139 3.6 2.5 144
SHELL CREEK 9580 5.1 3.4 150 4.7 2.6 181
SYLVAN LAKE 8420 1.6 2.9 55 5.6 3.5 160
SYLVAN ROAD 7120 .5 1.1 45* 3.1 3.0 103
TIMBER CREEK 7950 .5 1.5 33 4.1 2.0 205
YOUNTS PEAK 8350 1.2 2.3 52 2.9 2.6 112
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Basin wide percent of average 93 143
SHOSHONE RIVER
BLACKWATER 9780 4.4 4.1 107 4.8 3.6 133
EVENING STAR 9200 3.2 4.0 80 6.2 3.9 159
KIRWIN 9550 2.4 2.6 92 3.4 2.4 142
MARQUETTE 8760 .6 -M * 4.0 2.9 138
SYLVAN LAKE 8420 1.6 2.9 55 5.6 3.5 160
SYLVAN ROAD 7120 .5 1.1 45* 3.1 3.0 103
YOUNTS PEAK 8350 1.2 2.3 52 2.9 2.6 112
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Basin wide percent of average 78 137
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .4 .8 50 2.5 2.2 114
BIG GOOSE 7990 2.5 1.1 227* 5.9 2.4 246
BONE SPRINGS DIV 9350 4.7 3.4 138 5.1 3.2 159
BURGESS JUNCTION 7880 2.3 2.2 105 5.4 2.8 193
CLOUD PEAK RESERVOIR 9860 2.9 2.3 126 5.2 3.3 158
DOME LAKE 8880 3.5 2.7 130 6.2 3.2 194
GRAVE SPRINGS 8550 .5 1.6 31 2.8 2.5 112
HANSEN SAWMILL 8360 .7 1.3 54 2.6 2.3 113
LITTLE GOOSE 8870 2.9 -M * 6.3 -M *
MIDDLE POWDER 7760 1.1 1.9 58 4.6 3.3 139
POWDER RIVER PASS 9480 2.5 1.8 139 3.6 2.5 144
SOLDIER PARK 8720 .2 -M * 3.7 -M *
SUCKER CREEK 8880 3.9 1.9 205 5.5 3.0 183
TIE CREEK 6870 .9 1.2 75 5.8 2.9 200
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Basin wide percent of average 117 164
BELLE FOURCHE
BLIND PARK 6890 .4 1.3 31 1.5 3.2 47
COLE CANYON 5910 .0 1.2 0 1.6 2.2 73
NORTH RAPID CREEK 6130 .6 .7 86* 1.2 2.9 41
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Basin wide percent of average 31 52
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 3.3 -M * 4.9 -M *
CINNABAR PARK 9574 1.9 2.5 76 4.3 3.5 123
COLUMBINE 9160 1.1 1.7 65* 3.6 3.2 113
DIVIDE PEAK 8880 2.0 2.5 80 5.0 3.5 143
ELK RIVER 8700 .7 1.1 64* 3.0 2.9 103
JOE WRIGHT 10120 1.7 3.6 47 5.3 4.5 118
NORTH FRENCH CREEK 10130 3.1 4.2 74 4.5 4.4 102
OLD BATTLE 10000 3.7 4.4 84 5.1 4.8 106
SAGE CREEK BASIN 7850 1.1 1.5 73 2.8 2.0 140
SOUTH BRUSH CREEK 8440 .8 1.2 67* 3.3 3.3 100
TOWER 10500 3.9 5.6 70 5.2 5.5 95
WEBBER SPRINGS 9250 1.7 2.9 59 4.6 4.2 110
WILLOW CREEK PASS 9540 1.5 1.8 83 2.9 2.6 112
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Basin wide percent of average 70 112
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.4 3.0 47 3.9 3.4 115
CASPER MTN. 7900 2.7 2.5 108 6.4 3.3 194
DEADMAN HILL 10220 3.7 3.0 123 4.4 3.2 138
DEER PARK 9700 1.5 3.3 45 3.4 3.6 94
LAPRELE CREEK 8375 1.4 1.5 93 3.8 2.5 152
RENO HILL 8400 3.1 2.3 135 4.8 3.3 145
ROACH 9700 2.4 1.9 126 4.2 3.0 140
SAND LAKE 10050 4.2 4.6 91 5.1 4.0 128
SOUTH PASS 9040 1.1 2.4 46 2.7 3.0 90
WINDY PEAK 7900 1.3 1.0 130 2.9 2.2 132
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Basin wide percent of average 89 132
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.0 .8 125* 2.7 2.5 108
DIVIDE PEAK 8880 2.0 2.5 80 5.0 3.5 143
OLD BATTLE 10000 3.7 4.4 84 5.1 4.8 106
SANDSTONE RS 8150 .3 .9 33* 2.6 3.1 84
WHISKEY PARK 8950 1.1 2.7 41* 4.4 3.9 113
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Basin wide percent of average 72* 111
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.2 1.8 67 2.4 2.4 100
BLIND BULL SUM 8650 .9 2.7 33* 2.4 3.1 77
EAST RIM DIVIDE 7930 .3 1.1 27* 2.2 1.9 116
ELKHART PARK G.S. 9400 1.2 1.4 86 3.2 2.6 123
GROS VENTRE SUMMIT 8750 .7 1.9 37 2.2 2.4 92
GUNSIGHT PASS 9820 1.1 -M * 2.9 -M *
KENDALL R.S. 7740 .6 1.2 50* 2.3 2.1 110
LOOMIS PARK 8240 .2 1.6 13* 2.7 2.5 108
NEW FORK LAKE 8340 1.0 1.0 100* 2.8 2.1 133
POCKET CREEK 9360 1.9 -M * 3.0 -M *
SNIDER BASIN 8060 .1 1.3 8* 1.6 2.2 73
SPRING CREEK DIVIDE 9000 1.6 2.5 64* 3.6 3.6 100
TRIPLE PEAK 8500 1.1 2.2 50* 3.3 3.1 106
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Basin wide percent of average 48* 103
LOWER GREEN RIVER
HAMS FORK 7840 .1 .8 13* 2.6 1.9 137
HEWINTA 9519 .0 1.2 0* 3.6 3.0 120
HICKERSON PARK 9145 .9 .7 129* 4.7 2.1 224
HOLE-IN-ROCK 9150 1.0 .7 143* 4.4 2.0 220
INDIAN CREEK 9425 1.9 2.5 76* 3.3 3.5 94
KELLEY R.S. 8180 .8 1.6 50* 3.1 2.9 107
STEEL CREEK PARK 10200 1.3 2.2 59 4.4 3.1 142
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Basin wide percent of average 62* 141
UPPER BEAR RIVER
BUG LAKE 7950 .3 1.8 17* 2.8 3.1 90
HAYDEN FORK 9212 .7 1.3 54* 4.9 3.3 148
KELLEY R.S. 8180 .8 1.6 50* 3.1 2.9 107
LILY LAKE 9156 .4 1.4 29* 3.5 3.2 109
MONTE CRISTO 8960 1.2 2.3 52* 3.3 3.7 89
SALT RIVER SUMMIT 7760 .2 .7 29* 2.2 2.6 85
TRIAL LAKE 9992 1.9 2.7 70 2.9 3.7 78
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Basin wide percent of average 47* 101
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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.
