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 12 , 2010
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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 1.7 1.6 106* 4.5 3.3 136
COTTONWOOD CREEK 7670 2.7 2.0 135* 6.1 4.7 130
GRAND TARGHEE 9260 6.7 -M * 6.5 -M *
GRANITE CREEK 6770 1.0 1.3 77* 3.6 2.9 124
GRASSY LAKE 7265 2.1 3.2 66* 5.5 5.4 102
GROS VENTRE SUMMIT 8750 2.0 2.2 91 2.4 2.7 89
GUNSIGHT PASS 9820 2.3 -M * 3.0 -M *
LEWIS LAKE DIVIDE 7850 3.6 3.2 113* 5.7 5.2 110
PHILLIPS BENCH 8200 3.6 3.0 120* 5.0 3.9 128
SALT RIVER SUMMIT 7760 .3 1.0 30* 3.3 3.0 110
SNAKE RIVER STATION 6920 .7 1.5 47* 4.4 3.6 122
SPRING CREEK DIVIDE 9000 3.0 3.1 97 4.4 4.2 105
THUMB DIVIDE 7980 1.1 1.8 61* 2.6 3.2 81
TOGWOTEE PASS 9580 3.9 4.1 95 4.8 4.3 112
TWO OCEAN PLATEAU 9240 4.6 4.9 94 3.9 4.7 83
WILLOW CREEK 8380 2.6 3.7 70 7.2 5.6 129
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Basin wide percent of average 90* 112
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 2.6 4.3 60 2.9 3.3 88
BLACK BEAR 8170 3.6 4.8 75 5.8 5.9 98
CANYON 7870 .0 1.5 0 2.0 2.9 69
FISHER CREEK 9100 2.9 4.8 60 3.9 5.4 72
MADISON PLATEAU 7750 1.6 2.9 55 3.4 4.0 85
NORTHEAST ENTRANCE 7350 .3 .9 33* 2.5 2.4 104
PARKER PEAK 9400 2.3 4.0 58 3.4 3.4 100
SYLVAN LAKE 8420 1.4 3.4 41 3.3 4.0 83
THUMB DIVIDE 7980 1.1 1.8 61* 2.6 3.2 81
TWO OCEAN PLATEAU 9240 4.6 4.9 94 3.9 4.7 83
WHISKEY CREEK 6800 .1 1.6 6* 2.6 3.5 74
WHITE MILL 8700 2.1 3.5 60 3.2 4.3 74
WOLVERINE 7650 .1 1.3 8 1.7 2.7 63
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Basin wide percent of average 57 83
WIND RIVER
BURROUGHS CREEK 8750 -M 1.9 * 1.7 2.7 63
CASTLE CREEK 8400 .3 -M * .9 -M *
COLD SPRINGS 9630 .6 1.8 33 .9 2.9 31
DEER PARK 9700 2.4 3.6 67 2.9 4.3 67
HOBBS PARK 10100 1.6 3.3 48 1.6 3.2 50
LITTLE WARM 9370 1.5 1.9 79 1.2 2.8 43
SOUTH PASS 9040 1.0 2.7 37 1.7 3.5 49
ST. LAWRENCE ALT 8620 .1 1.5 7 1.0 2.5 40
TOGWOTEE PASS 9580 3.9 4.1 95 4.8 4.3 112
TOWNSEND CREEK 8700 .2 1.7 12 1.9 3.1 61
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Basin wide percent of average 55 60
BIGHORN BASIN
BALD MTN. 9380 3.1 4.1 76 3.2 3.5 91
BEAR TRAP MEADOW 8200 .5 1.0 50 1.7 2.5 68
BLACKWATER 9780 3.3 4.6 72 3.2 4.1 78
BONE SPRINGS DIV 9350 2.0 3.8 53 1.5 3.5 43
EVENING STAR 9200 2.9 4.7 62 3.9 4.6 85
GRAVE SPRINGS 8550 .4 1.8 22 1.4 2.6 54
KIRWIN 9550 1.5 2.8 54 1.7 2.7 63
MARQUETTE 8760 .1 2.6 4 1.0 3.1 32
MIDDLE POWDER 7760 .6 2.2 27 .8 3.6 22
OWL CREEK 8975 .2 1.3 15 .6 1.6 38
POWDER RIVER PASS 9480 2.3 2.2 105 3.0 2.7 111
SHELL CREEK 9580 2.4 3.7 65 2.1 3.0 70
SYLVAN LAKE 8420 1.4 3.4 41 3.3 4.0 83
SYLVAN ROAD 7120 .3 1.4 21 2.5 3.5 71
TIMBER CREEK 7950 .3 1.6 19 .8 2.3 35
YOUNTS PEAK 8350 2.3 2.5 92 2.2 3.0 73
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Basin wide percent of average 54 65
SHOSHONE RIVER
BLACKWATER 9780 3.3 4.6 72 3.2 4.1 78
EVENING STAR 9200 2.9 4.7 62 3.9 4.6 85
KIRWIN 9550 1.5 2.8 54 1.7 2.7 63
MARQUETTE 8760 .1 2.6 4 1.0 3.1 32
SYLVAN LAKE 8420 1.4 3.4 41 3.3 4.0 83
SYLVAN ROAD 7120 .3 1.4 21 2.5 3.5 71
YOUNTS PEAK 8350 2.3 2.5 92 2.2 3.0 73
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Basin wide percent of average 54 71
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .5 1.0 50 1.7 2.5 68
BIG GOOSE 7990 .0 1.3 0 1.7 2.5 68
BONE SPRINGS DIV 9350 2.0 3.8 53 1.5 3.5 43
BURGESS JUNCTION 7880 .0 2.4 0 1.6 3.0 53
CLOUD PEAK RESERVOIR 9860 1.4 2.5 56 2.1 3.6 58
DOME LAKE 8880 .1 3.0 3 1.9 3.5 54
GRAVE SPRINGS 8550 .4 1.8 22 1.4 2.6 54
HANSEN SAWMILL 8360 .1 1.3 8 1.0 2.5 40
LITTLE GOOSE 8870 .0 -M * 3.1 -M *
MIDDLE POWDER 7760 .6 2.2 27 .8 3.6 22
POWDER RIVER PASS 9480 2.3 2.2 105 3.0 2.7 111
SOLDIER PARK 8720 .0 -M * 1.2 -M *
SUCKER CREEK 8880 .7 2.1 33 1.2 3.3 36
TIE CREEK 6870 .0 1.2 0 1.1 3.0 37
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Basin wide percent of average 33 52
BELLE FOURCHE
BLIND PARK 6890 .0 1.4 0 4.8 3.4 141
COLE CANYON 5910 .4 1.4 29 2.2 2.4 92
NORTH RAPID CREEK 6130 .2 .9 22 3.7 3.1 119
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Basin wide percent of average 16 120
UPPER N. PLATTE RIVER
COLUMBINE 9160 2.7 2.2 123* 6.0 3.7 162
DIVIDE PEAK 8880 .6 2.9 21 3.6 3.9 92
ELK RIVER 8700 .6 1.3 46* 4.2 3.2 131
JOE WRIGHT 10120 4.6 4.1 112 8.5 5.0 170
NORTH FRENCH CREEK 10130 4.3 4.8 90 5.5 4.9 112
OLD BATTLE 10000 4.6 5.1 90 6.1 5.5 111
SAGE CREEK BASIN 7850 .1 1.7 6 3.3 2.3 143
SOUTH BRUSH CREEK 8440 1.0 1.4 71 3.8 3.7 103
TOWER 10500 8.9 6.7 133 10.3 6.3 163
WEBBER SPRINGS 9250 2.0 3.5 57 5.7 4.7 121
WILLOW CREEK PASS 9540 3.3 2.1 157 4.8 2.9 166
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Basin wide percent of average 91 134
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 2.4 3.5 69 4.2 3.8 111
CASPER MTN. 7900 .2 2.8 7 3.3 3.7 89
DEADMAN HILL 10220 2.9 3.3 88 5.4 3.5 154
DEER PARK 9700 2.4 3.6 67 2.9 4.3 67
LAPRELE CREEK 8375 .0 1.8 0 1.7 2.9 59
RENO HILL 8400 .5 2.6 19 2.5 3.6 69
ROACH 9700 2.4 2.3 104 4.5 3.4 132
SAND LAKE 10050 5.1 5.4 94 5.2 4.5 116
SOUTH PASS 9040 1.0 2.7 37 1.7 3.5 49
WINDY PEAK 7900 .3 1.2 25 2.6 2.5 104
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Basin wide percent of average 59 95
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 1.0 10* 3.5 2.8 125
DIVIDE PEAK 8880 .6 2.9 21 3.6 3.9 92
OLD BATTLE 10000 4.6 5.1 90 6.1 5.5 111
SANDSTONE RS 8150 .0 1.1 0* 4.4 3.5 126
WHISKEY PARK 8950 2.6 3.2 81 5.6 4.5 124
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Basin wide percent of average 59 115
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.3 2.2 59 2.5 2.7 93
BLIND BULL SUM 8650 3.6 3.4 106 2.9 3.5 83
EAST RIM DIVIDE 7930 .5 1.4 36 1.6 2.1 76
ELKHART PARK G.S. 9400 .9 1.7 53 1.8 2.9 62
GROS VENTRE SUMMIT 8750 2.0 2.2 91 2.4 2.7 89
GUNSIGHT PASS 9820 2.3 -M * 3.0 -M *
KENDALL R.S. 7740 .2 1.5 13 2.2 2.4 92
LOOMIS PARK 8240 .9 2.0 45 2.5 2.9 86
NEW FORK LAKE 8340 1.0 1.2 83 1.4 2.4 58
POCKET CREEK 9360 1.6 -M * 2.4 -M *
SNIDER BASIN 8060 1.3 1.6 81 3.3 2.6 127
SPRING CREEK DIVIDE 9000 3.0 3.1 97 4.4 4.2 105
TRIPLE PEAK 8500 3.2 2.8 114 5.1 3.6 142
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Basin wide percent of average 77 94
LOWER GREEN RIVER
HAMS FORK 7840 .1 1.0 10* 2.4 2.2 109
HEWINTA 9519 -M 1.3 * 3.6 3.3 109
HICKERSON PARK 9145 -M .8 * 1.3 2.4 54
HOLE-IN-ROCK 9150 .4 .9 44 2.3 2.2 105
INDIAN CREEK 9425 2.4 3.2 75 3.8 4.1 93
KELLEY R.S. 8180 1.7 2.0 85 4.0 3.4 118
STEEL CREEK PARK 10200 1.9 2.5 76 4.5 3.4 132
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Basin wide percent of average 68 104
UPPER BEAR RIVER
BUG LAKE 7950 .8 2.1 38* 4.6 3.5 131
HAYDEN FORK 9212 .8 1.5 53* 6.3 3.7 170
KELLEY R.S. 8180 1.7 2.0 85 4.0 3.4 118
LILY LAKE 9156 1.2 1.6 75 5.2 3.6 144
MONTE CRISTO 8960 2.0 2.7 74* 5.1 4.3 119
SALT RIVER SUMMIT 7760 .3 1.0 30* 3.3 3.0 110
TRIAL LAKE 9992 4.5 3.2 141 6.8 4.2 162
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Basin wide percent of average 80* 137
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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.