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 21 , 2006
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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 2.2 2.8 79 5.7 4.8 119
COTTONWOOD CREEK 7600 4.7 3.3 142 7.6 6.4 119
GRANITE CREEK 6770 2.1 2.3 91 5.2 4.2 124
GRASSY LAKE 7265 4.4 5.3 83 11.4 7.6 150
GROS VENTRE SUMMIT 8750 3.3 3.0 110 4.6 3.5 131
LEWIS LAKE DIVIDE 7850 4.9 5.3 92 10.6 7.7 138
PHILLIPS BENCH 8200 3.5 4.5 78 7.8 5.8 134
SALT RIVER SUMMIT 7600 2.4 1.7 141 5.0 4.0 125
SNAKE RIVER STATION 6920 2.4 2.7 89 8.8 5.0 176
SPRING CREEK DIVIDE 9000 5.3 4.8 110 6.7 5.8 116
THUMB DIVIDE 7980 2.0 2.8 71 4.6 4.3 107
TOGWOTEE PASS 9580 5.4 5.5 98 6.6 5.8 114
TWO OCEAN PLATEAU 9240 5.4 6.5 83 6.6 6.5 102
WILLOW CREEK 8450 5.4 5.6 96 9.2 7.5 123
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Basin wide percent of average 95 127
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.9 5.6 70 4.8 4.7 102
BLACK BEAR 8170 7.0 7.0 100 10.9 8.2 133
CANYON 8090 2.2 2.3 96 5.1 3.8 134
FISHER CREEK 9100 7.0 6.7 104 10.2 7.7 132
MADISON PLATEAU 7750 3.2 4.3 74 6.8 5.7 119
NORTHEAST ENTRANCE 7350 .8 1.6 50 5.3 3.2 166
PARKER PEAK 9400 4.4 5.3 83 6.0 4.5 133
SYLVAN LAKE 8420 2.9 4.8 60 7.3 5.6 130
THUMB DIVIDE 7980 2.0 2.8 71 4.6 4.3 107
TWO OCEAN PLATEAU 9240 5.4 6.5 83 6.6 6.5 102
WHISKEY CREEK 6800 2.1 2.6 81 6.0 4.7 128
WHITE MILL 8700 4.5 4.9 92 7.5 6.1 123
WOLVERINE 7650 1.3 2.1 62 3.7 3.6 103
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Basin wide percent of average 83 124
WIND RIVER
BURROUGHS CREEK 8750 2.5 2.8 89 4.5 3.8 118
COLD SPRINGS 9630 1.3 2.5 52 2.4 3.5 69
DEER PARK 9700 3.5 4.0 88 5.3 5.6 95
HOBBS PARK 10100 2.7 4.3 63 3.4 3.8 89
LITTLE WARM 9370 2.1 2.6 81 3.1 3.7 84
SOUTH PASS 9040 3.6 3.8 95 4.9 4.7 104
ST. LAWRENCE ALT 8620 1.5 2.1 71 2.5 2.9 86
TOGWOTEE PASS 9580 5.4 5.5 98 6.6 5.8 114
TOWNSEND CREEK 8700 2.2 2.4 92 4.5 3.7 122
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Basin wide percent of average 83 99
BIGHORN BASIN
BALD MTN. 9380 6.3 5.0 126 5.3 4.4 120
BEAR TRAP MEADOW 8200 1.7 1.3 131 2.7 2.9 93
BLACKWATER 9780 5.1 6.1 84 5.6 5.7 98
BONE SPRINGS DIV 9350 5.9 4.5 131 5.0 4.1 122
EVENING STAR 9200 4.5 6.4 70 -M 6.4 *
GRAVE SPRINGS 8550 2.1 2.3 91 2.5 3.1 81
KIRWIN 9550 2.8 3.5 80 3.9 3.4 115
MARQUETTE 8760 .4 3.2 12 3.0 3.5 86
MIDDLE POWDER 7760 3.0 2.9 103 3.4 4.2 81
OWL CREEK 8975 2.0 1.6 125 2.5 1.9 132
POWDER RIVER PASS 9480 2.8 2.7 104 3.6 3.4 106
SHELL CREEK 9580 5.8 4.3 135 3.9 3.7 105
SYLVAN LAKE 8420 2.9 4.8 60 7.3 5.6 130
SYLVAN ROAD 7120 .6 2.4 25 5.4 5.1 106
TIMBER CREEK 7950 .5 2.0 25 2.6 2.6 100
YOUNTS PEAK 8350 1.9 3.5 54 5.1 4.1 124
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Basin wide percent of average 85 107
SHOSHONE RIVER
BLACKWATER 9780 5.1 6.1 84 5.6 5.7 98
EVENING STAR 9200 4.5 6.4 70 -M 6.4 *
KIRWIN 9550 2.8 3.5 80 3.9 3.4 115
MARQUETTE 8760 .4 3.2 12 3.0 3.5 86
SYLVAN LAKE 8420 2.9 4.8 60 7.3 5.6 130
SYLVAN ROAD 7120 .6 2.4 25 5.4 5.1 106
YOUNTS PEAK 8350 1.9 3.5 54 5.1 4.1 124
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Basin wide percent of average 61 111
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.7 1.3 131 2.7 2.9 93
BIG GOOSE 7990 1.4 1.8 78 3.0 2.7 111
BONE SPRINGS DIV 9350 5.9 4.5 131 5.0 4.1 122
BURGESS JUNCTION 7880 2.5 3.0 83 4.3 3.6 119
CLOUD PEAK RESERVOIR 9860 3.1 3.1 100 3.4 4.2 81
DOME LAKE 8880 2.6 3.5 74 3.5 4.1 85
GRAVE SPRINGS 8550 2.1 2.3 91 2.5 3.1 81
HANSEN SAWMILL 8360 .5 1.6 31 1.7 2.8 61
MIDDLE POWDER 7760 3.0 2.9 103 3.4 4.2 81
POWDER RIVER PASS 9480 2.8 2.7 104 3.6 3.4 106
SUCKER CREEK 8880 3.8 2.7 141 4.4 3.8 116
TIE CREEK 6870 .7 1.2 58 4.0 3.3 121
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Basin wide percent of average 98 98
BELLE FOURCHE
BLIND PARK 6890 .9 1.7 53 3.0 3.9 77
COLE CANYON 5910 1.3 1.6 81 3.2 -M *
NORTH RAPID CREEK 6130 .7 1.3 54 2.5 3.4 74
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Basin wide percent of average 63 75
UPPER N. PLATTE RIVER
COLUMBINE 9160 3.6 3.5 103 6.4 5.1 125
DIVIDE PEAK 8860 4.7 3.9 121 6.9 5.1 135
ELK RIVER 8700 3.0 2.2 136 5.3 4.2 126
JOE WRIGHT 10120 -M 5.2 * 6.8 6.3 108
NORTH FRENCH CREEK 10130 6.4 6.3 102 7.4 6.2 119
OLD BATTLE 9920 7.5 6.9 109 9.6 7.4 130
SAGE CREEK BASIN 7850 3.6 2.3 157 5.2 2.9 179
SOUTH BRUSH CREEK 8440 2.5 2.1 119 4.4 4.4 100
TOWER 10500 8.6 9.5 91 10.5 8.4 125
WEBBER SPRINGS 9250 4.9 5.0 98 8.2 6.3 130
WILLOW CREEK PASS 9540 3.8 2.8 136 3.5 3.6 97
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Basin wide percent of average 109 124
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 4.7 4.6 102 5.6 5.0 112
CASPER MTN. 7850 2.9 3.7 78 4.1 4.3 95
DEADMAN HILL 10220 3.5 4.1 85 4.6 4.4 105
DEER PARK 9700 3.5 4.0 88 5.3 5.6 95
LAPRELE CREEK 8375 2.4 2.5 96 3.2 3.5 91
RENO HILL 8500 3.9 3.4 115 4.9 4.3 114
ROACH 9700 4.7 3.2 147 6.1 4.3 142
SAND LAKE 10050 6.4 7.2 89 6.9 5.9 117
SOUTH PASS 9040 3.6 3.8 95 4.9 4.7 104
WINDY PEAK 7900 1.5 1.7 88 2.7 3.1 87
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Basin wide percent of average 97 107
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .6 1.4 43 4.0 3.6 111
DIVIDE PEAK 8860 4.7 3.9 121 6.9 5.1 135
OLD BATTLE 9920 7.5 6.9 109 9.6 7.4 130
SANDSTONE RS 8150 1.1 1.7 65 4.3 4.5 96
WHISKEY PARK 8950 3.8 4.6 83 6.7 6.2 108
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Basin wide percent of average 96 118
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.6 3.0 120 4.3 3.5 123
BLIND BULL SUM 8900 5.5 5.1 108 5.8 5.0 116
EAST RIM DIVIDE 7930 1.4 2.3 61 3.4 2.8 121
ELKHART PARK G.S. 9400 2.2 2.6 85 4.1 3.6 114
GROS VENTRE SUMMIT 8750 3.3 3.0 110 4.6 3.5 131
KENDALL R.S. 7740 1.7 2.3 74 4.1 3.3 124
LOOMIS PARK 8240 2.2 3.1 71 4.7 3.9 121
NEW FORK LAKE 8340 1.8 2.0 90 4.1 3.1 132
SNIDER BASIN 8060 2.8 2.5 112 4.5 3.6 125
SPRING CREEK DIVIDE 9000 5.3 4.8 110 6.7 5.8 116
TRIPLE PEAK 8500 4.9 4.4 111 7.5 5.1 147
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Basin wide percent of average 99 125
LOWER GREEN RIVER
HAMS FORK 7840 2.0 1.7 118 3.6 2.8 129
HEWINTA 9500 .4 1.7 24 5.0 4.1 122
HICKERSON PARK 9100 .5 1.1 45 4.0 2.7 148
HOLE-IN-ROCK 9150 2.0 1.2 167 3.5 2.6 135
INDIAN CREEK 9425 5.3 4.8 110 5.9 5.6 105
KELLEY R.S. 8180 3.3 3.0 110 5.1 4.5 113
STEEL CREEK PARK 10100 3.7 3.2 116 5.0 4.3 116
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Basin wide percent of average 103 121
UPPER BEAR RIVER
BUG LAKE 7950 3.2 3.0 107 5.4 4.6 117
HAYDEN FORK 9100 2.0 2.3 87 7.4 4.9 151
KELLEY R.S. 8180 3.3 3.0 110 5.1 4.5 113
LILY LAKE 9050 2.8 2.2 127 5.7 4.6 124
MONTE CRISTO 8960 5.4 3.8 142 7.6 5.8 131
SALT RIVER SUMMIT 7600 2.4 1.7 141 5.0 4.0 125
TRIAL LAKE 9960 3.6 4.3 84 7.4 5.4 137
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Basin wide percent of average 112 129
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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.