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 16 , 2008
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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 2.1 33 3.6 3.8 95
COTTONWOOD CREEK 7670 3.6 2.5 144 6.7 5.4 124
GRAND TARGHEE 9260 6.5 -M * 8.8 -M *
GRANITE CREEK 6770 .4 1.7 24 4.8 3.4 141
GRASSY LAKE 7265 3.5 4.1 85 7.5 6.2 121
GROS VENTRE SUMMIT 8750 2.5 2.5 100 3.8 3.0 127
GUNSIGHT PASS 9820 2.2 -M * 3.5 -M *
LEWIS LAKE DIVIDE 7850 4.4 4.0 110 7.9 6.1 130
PHILLIPS BENCH 8200 2.6 3.6 72 5.4 4.6 117
SALT RIVER SUMMIT 7760 1.0 1.3 77 3.1 3.3 94
SNAKE RIVER STATION 6920 .6 2.0 30 4.0 4.1 98
SPRING CREEK DIVIDE 9000 3.6 3.8 95 5.4 4.8 113
THUMB DIVIDE 7980 2.0 2.2 91 5.0 3.6 139
TOGWOTEE PASS 9580 5.8 4.7 123 6.7 4.9 137
TWO OCEAN PLATEAU 9240 7.0 5.6 125 5.3 5.4 98
WILLOW CREEK 8380 3.6 4.5 80 7.9 6.3 125
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Basin wide percent of average 93 119
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 4.1 4.7 87 3.9 3.8 103
BLACK BEAR 8170 5.9 5.6 105 9.0 6.8 132
CANYON 7870 1.8 1.8 100 3.0 3.3 91
FISHER CREEK 9100 5.7 5.4 106 6.6 6.3 105
MADISON PLATEAU 7750 2.5 3.4 74 5.0 4.6 109
NORTHEAST ENTRANCE 7350 1.0 1.1 91 3.3 2.7 122
PARKER PEAK 9400 4.6 4.5 102 3.8 3.8 100
SYLVAN LAKE 8420 2.7 4.0 68 4.8 4.6 104
THUMB DIVIDE 7980 2.0 2.2 91 5.0 3.6 139
TWO OCEAN PLATEAU 9240 7.0 5.6 125 5.3 5.4 98
WHISKEY CREEK 6800 1.4 2.0 70 4.4 3.9 113
WHITE MILL 8700 4.3 4.0 108 5.1 4.9 104
WOLVERINE 7650 .7 1.5 47 2.4 3.0 80
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Basin wide percent of average 95 109
WIND RIVER
BURROUGHS CREEK 8750 3.0 2.3 130 3.9 3.2 122
COLD SPRINGS 9630 2.0 2.2 91 3.4 3.2 106
DEER PARK 9700 3.2 3.7 86 4.8 5.0 96
HOBBS PARK 10100 3.3 3.8 87 3.7 3.5 106
LITTLE WARM 9370 2.8 2.2 127 3.9 3.2 122
SOUTH PASS 9040 2.8 3.2 87 4.9 4.0 123
ST. LAWRENCE ALT 8620 .7 1.8 39 2.7 2.7 100
TOGWOTEE PASS 9580 5.8 4.7 123 6.7 4.9 137
TOWNSEND CREEK 8700 1.9 2.1 90 3.7 3.4 109
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Basin wide percent of average 98 114
BIGHORN BASIN
BALD MTN. 9380 6.1 4.5 136 5.7 3.9 146
BEAR TRAP MEADOW 8200 .9 1.1 82 2.6 2.7 96
BLACKWATER 9780 4.2 5.2 81 4.2 4.7 89
BONE SPRINGS DIV 9350 4.8 4.2 114 4.7 3.8 124
EVENING STAR 9200 4.4 5.2 85 6.0 5.3 113
GRAVE SPRINGS 8550 1.1 2.0 55 2.8 2.8 100
KIRWIN 9550 3.2 3.0 107 3.5 3.0 117
MARQUETTE 8760 1.4 2.8 50 2.8 3.3 85
MIDDLE POWDER 7760 -M 2.5 * -M 3.9 *
OWL CREEK 8975 2.5 1.5 167 2.7 1.8 150
POWDER RIVER PASS 9480 2.9 2.4 121 3.9 3.0 130
SHELL CREEK 9580 5.2 4.0 130 5.2 3.3 158
SYLVAN LAKE 8420 2.7 4.0 68 4.8 4.6 104
SYLVAN ROAD 7120 1.2 1.8 67 3.3 4.2 79
TIMBER CREEK 7950 1.6 1.9 84 3.5 2.5 140
YOUNTS PEAK 8350 3.1 2.8 111 3.8 3.4 112
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Basin wide percent of average 98 114
SHOSHONE RIVER
BLACKWATER 9780 4.2 5.2 81 4.2 4.7 89
EVENING STAR 9200 4.4 5.2 85 6.0 5.3 113
KIRWIN 9550 3.2 3.0 107 3.5 3.0 117
MARQUETTE 8760 1.4 2.8 50 2.8 3.3 85
SYLVAN LAKE 8420 2.7 4.0 68 4.8 4.6 104
SYLVAN ROAD 7120 1.2 1.8 67 3.3 4.2 79
YOUNTS PEAK 8350 3.1 2.8 111 3.8 3.4 112
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Basin wide percent of average 81 100
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .9 1.1 82 2.6 2.7 96
BIG GOOSE 7990 1.3 1.5 87 3.3 2.6 127
BONE SPRINGS DIV 9350 4.8 4.2 114 4.7 3.8 124
BURGESS JUNCTION 7880 2.5 2.7 93 4.0 3.3 121
CLOUD PEAK RESERVOIR 9860 4.1 2.7 152 5.2 3.9 133
DOME LAKE 8880 3.3 3.2 103 4.4 3.8 116
GRAVE SPRINGS 8550 1.1 2.0 55 2.8 2.8 100
HANSEN SAWMILL 8360 .7 1.3 54 3.4 2.7 126
MIDDLE POWDER 7760 -M 2.5 * -M 3.9 *
POWDER RIVER PASS 9480 2.9 2.4 121 3.9 3.0 130
SUCKER CREEK 8880 3.5 2.4 146 5.1 3.5 146
TIE CREEK 6870 .5 1.2 42 4.8 3.2 150
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Basin wide percent of average 104 125
BELLE FOURCHE
BLIND PARK 6890 3.7 1.5 247 5.7 3.7 154
COLE CANYON 5910 2.5 1.5 167 5.2 2.5 208
NORTH RAPID CREEK 6130 4.1 1.0 410 5.7 3.3 173
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Basin wide percent of average 258 175
UPPER N. PLATTE RIVER
COLUMBINE 9160 1.7 2.8 61 3.0 4.2 71
DIVIDE PEAK 8880 1.6 3.3 48 4.2 4.4 95
ELK RIVER 8700 .9 1.6 56 3.4 3.6 94
JOE WRIGHT 10120 3.8 4.6 83 5.7 5.6 102
NORTH FRENCH CREEK 10130 5.0 5.4 93 5.3 5.5 96
OLD BATTLE 10000 4.2 5.9 71 6.1 6.2 98
SAGE CREEK BASIN 7850 .4 1.9 21 2.3 2.6 88
SOUTH BRUSH CREEK 8440 1.7 1.7 100 3.3 4.0 82
TOWER 10500 5.1 8.0 64 6.2 7.2 86
WEBBER SPRINGS 9250 2.3 4.1 56 4.6 5.3 87
WILLOW CREEK PASS 9540 1.5 2.4 62 2.5 3.2 78
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Basin wide percent of average 68 90
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 2.6 4.0 65 3.2 4.3 74
CASPER MTN. 7900 1.2 3.2 37 3.7 4.0 92
DEADMAN HILL 10220 2.8 3.7 76 2.8 3.9 72
DEER PARK 9700 3.2 3.7 86 4.8 5.0 96
LAPRELE CREEK 8375 .8 2.1 38 1.8 3.2 56
RENO HILL 8400 1.3 3.0 43 2.8 3.9 72
ROACH 9700 2.0 2.7 74 3.0 3.8 79
SAND LAKE 10050 4.9 6.2 79 4.5 5.1 88
SOUTH PASS 9040 2.8 3.2 87 4.9 4.0 123
WINDY PEAK 7900 1.2 1.4 86 1.6 2.8 57
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Basin wide percent of average 69 83
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .7 1.2 58 3.2 3.2 100
DIVIDE PEAK 8880 1.6 3.3 48 4.2 4.4 95
OLD BATTLE 10000 4.2 5.9 71 6.1 6.2 98
SANDSTONE RS 8150 1.4 1.3 108 3.0 3.9 77
WHISKEY PARK 8950 2.4 3.8 63 4.8 5.2 92
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Basin wide percent of average 66 93
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.9 2.5 76 2.7 3.0 90
BLIND BULL SUM 8650 4.0 4.1 98 4.7 4.1 115
EAST RIM DIVIDE 7930 .6 1.8 33 3.3 2.4 138
ELKHART PARK G.S. 9400 2.4 2.1 114 4.1 3.2 128
GROS VENTRE SUMMIT 8750 2.5 2.5 100 3.8 3.0 127
GUNSIGHT PASS 9820 2.2 -M * 3.5 -M *
KENDALL R.S. 7740 1.0 1.8 56 3.6 2.8 129
LOOMIS PARK 8240 1.8 2.5 72 4.4 3.3 133
NEW FORK LAKE 8340 1.6 1.5 107 3.3 2.7 122
SNIDER BASIN 8060 1.2 2.0 60 3.0 3.0 100
SPRING CREEK DIVIDE 9000 3.6 3.8 95 5.4 4.8 113
TRIPLE PEAK 8500 2.9 3.5 83 4.9 4.2 117
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Basin wide percent of average 84 118
LOWER GREEN RIVER
HAMS FORK 7840 .2 1.3 15 2.8 2.4 117
HEWINTA 9519 .7 1.5 47 2.6 3.7 70
HICKERSON PARK 9145 .0 1.0 0 2.0 2.6 77
HOLE-IN-ROCK 9150 .3 1.0 30 2.4 2.4 100
INDIAN CREEK 9425 3.2 3.8 84 4.6 4.6 100
KELLEY R.S. 8180 2.3 2.4 96 3.6 3.8 95
STEEL CREEK PARK 10200 .7 2.8 25 3.4 3.8 89
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Basin wide percent of average 54 92
UPPER BEAR RIVER
BUG LAKE 7950 1.0 2.5 40 3.1 3.9 79
HAYDEN FORK 9212 1.4 1.8 78 3.9 4.2 93
KELLEY R.S. 8180 2.3 2.4 96 3.6 3.8 95
LILY LAKE 9156 1.4 1.9 74 3.5 4.1 85
MONTE CRISTO 8960 2.3 3.1 74 4.6 4.8 96
SALT RIVER SUMMIT 7760 1.0 1.3 77 3.1 3.3 94
TRIAL LAKE 9992 3.0 3.6 83 4.2 4.7 89
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Basin wide percent of average 75 90
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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 1961-90.
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.