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 MONDAY: NOVEMBER 20 , 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 2.1 2.7 78 5.6 4.6 122
COTTONWOOD CREEK 7600 4.7 3.1 152 7.6 6.2 123
GRANITE CREEK 6770 2.1 2.2 95 5.2 4.1 127
GRASSY LAKE 7265 4.3 5.1 84 11.2 7.4 151
GROS VENTRE SUMMIT 8750 3.2 2.9 110 4.6 3.4 135
LEWIS LAKE DIVIDE 7850 4.8 5.0 96 10.3 7.5 137
PHILLIPS BENCH 8200 3.4 4.3 79 7.8 5.6 139
SALT RIVER SUMMIT 7600 2.4 1.6 150 4.9 3.9 126
SNAKE RIVER STATION 6920 2.3 2.6 88 8.7 4.9 178
SPRING CREEK DIVIDE 9000 5.3 4.6 115 6.7 5.6 120
THUMB DIVIDE 7980 1.9 2.7 70 4.6 4.2 110
TOGWOTEE PASS 9580 5.3 5.3 100 6.5 5.7 114
TWO OCEAN PLATEAU 9240 5.4 6.3 86 6.6 6.4 103
WILLOW CREEK 8450 5.5 5.4 102 9.2 7.3 126
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Basin wide percent of average 98 130
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.9 5.4 72 4.7 4.5 104
BLACK BEAR 8170 6.9 6.8 101 10.9 8.0 136
CANYON 8090 2.2 2.2 100 5.1 3.7 138
FISHER CREEK 9100 7.0 6.5 108 10.2 7.5 136
MADISON PLATEAU 7750 3.2 4.2 76 6.8 5.5 124
NORTHEAST ENTRANCE 7350 .8 1.5 53 5.2 3.1 168
PARKER PEAK 9400 4.3 5.1 84 5.8 4.4 132
SYLVAN LAKE 8420 2.8 4.7 60 7.3 5.5 133
THUMB DIVIDE 7980 1.9 2.7 70 4.6 4.2 110
TWO OCEAN PLATEAU 9240 5.4 6.3 86 6.6 6.4 103
WHISKEY CREEK 6800 2.1 2.5 84 6.0 4.6 130
WHITE MILL 8700 4.5 4.7 96 7.5 5.9 127
WOLVERINE 7650 1.4 2.0 70 3.7 3.5 106
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Basin wide percent of average 85 126
WIND RIVER
BURROUGHS CREEK 8750 2.4 2.7 89 4.5 3.7 122
COLD SPRINGS 9630 1.3 2.4 54 2.4 3.4 71
DEER PARK 9700 3.5 4.0 88 5.3 5.5 96
HOBBS PARK 10100 2.7 4.2 64 3.4 3.7 92
LITTLE WARM 9370 2.1 2.6 81 3.0 3.6 83
SOUTH PASS 9040 3.6 3.7 97 4.9 4.6 107
ST. LAWRENCE ALT 8620 1.6 2.1 76 2.5 2.9 86
TOGWOTEE PASS 9580 5.3 5.3 100 6.5 5.7 114
TOWNSEND CREEK 8700 2.1 2.3 91 4.5 3.7 122
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Basin wide percent of average 84 101
BIGHORN BASIN
BALD MTN. 9380 6.4 4.9 131 5.3 4.3 123
BEAR TRAP MEADOW 8200 1.7 1.3 131 2.7 2.8 96
BLACKWATER 9780 5.1 5.9 86 5.6 5.6 100
BONE SPRINGS DIV 9350 5.8 4.5 129 4.9 4.1 120
EVENING STAR 9200 4.5 6.2 73 -M 6.3 *
GRAVE SPRINGS 8550 2.1 2.2 95 2.5 3.1 81
KIRWIN 9550 2.7 3.4 79 3.8 3.3 115
MARQUETTE 8760 .4 3.1 13 3.0 3.5 86
MIDDLE POWDER 7760 3.0 2.8 107 3.4 4.1 83
OWL CREEK 8975 2.0 1.6 125 2.5 1.8 139
POWDER RIVER PASS 9480 2.8 2.6 108 3.6 3.3 109
SHELL CREEK 9580 5.8 4.3 135 3.9 3.6 108
SYLVAN LAKE 8420 2.8 4.7 60 7.3 5.5 133
SYLVAN ROAD 7120 .6 2.3 26 5.3 5.0 106
TIMBER CREEK 7950 .3 2.0 15 2.7 2.5 108
YOUNTS PEAK 8350 1.8 3.4 53 4.8 4.0 120
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Basin wide percent of average 87 108
SHOSHONE RIVER
BLACKWATER 9780 5.1 5.9 86 5.6 5.6 100
EVENING STAR 9200 4.5 6.2 73 -M 6.3 *
KIRWIN 9550 2.7 3.4 79 3.8 3.3 115
MARQUETTE 8760 .4 3.1 13 3.0 3.5 86
SYLVAN LAKE 8420 2.8 4.7 60 7.3 5.5 133
SYLVAN ROAD 7120 .6 2.3 26 5.3 5.0 106
YOUNTS PEAK 8350 1.8 3.4 53 4.8 4.0 120
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Basin wide percent of average 62 111
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.7 1.3 131 2.7 2.8 96
BIG GOOSE 7990 1.5 1.8 83 3.1 2.7 115
BONE SPRINGS DIV 9350 5.8 4.5 129 4.9 4.1 120
BURGESS JUNCTION 7880 2.5 3.0 83 4.3 3.5 123
CLOUD PEAK RESERVOIR 9860 3.1 3.0 103 3.6 4.1 88
DOME LAKE 8880 2.7 3.5 77 3.6 4.1 88
GRAVE SPRINGS 8550 2.1 2.2 95 2.5 3.1 81
HANSEN SAWMILL 8360 .5 1.5 33 1.8 2.7 67
MIDDLE POWDER 7760 3.0 2.8 107 3.4 4.1 83
POWDER RIVER PASS 9480 2.8 2.6 108 3.6 3.3 109
SUCKER CREEK 8880 3.8 2.6 146 4.5 3.8 118
TIE CREEK 6870 .8 1.2 67 4.1 3.3 124
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Basin wide percent of average 101 101
BELLE FOURCHE
BLIND PARK 6890 1.0 1.7 59 3.1 3.8 82
COLE CANYON 5910 1.4 1.6 87 3.2 -M *
NORTH RAPID CREEK 6130 .7 1.2 58 2.6 3.4 76
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Basin wide percent of average 69 79
UPPER N. PLATTE RIVER
COLUMBINE 9160 3.5 3.4 103 6.4 5.0 128
DIVIDE PEAK 8860 4.7 3.8 124 6.9 5.0 138
ELK RIVER 8700 3.0 2.1 143 5.3 4.1 129
JOE WRIGHT 10120 5.0 5.1 98 6.8 6.2 110
NORTH FRENCH CREEK 10130 6.4 6.1 105 7.3 6.0 122
OLD BATTLE 9920 7.5 6.7 112 9.6 7.2 133
SAGE CREEK BASIN 7850 3.6 2.2 164 5.2 2.9 179
SOUTH BRUSH CREEK 8440 2.5 2.1 119 4.3 4.3 100
TOWER 10500 8.5 9.2 92 10.5 8.2 128
WEBBER SPRINGS 9250 5.0 4.8 104 8.2 6.1 134
WILLOW CREEK PASS 9540 3.7 2.8 132 3.5 3.6 97
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Basin wide percent of average 111 126
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 4.6 4.5 102 5.6 4.9 114
CASPER MTN. 7850 3.0 3.6 83 4.0 4.2 95
DEADMAN HILL 10220 3.7 4.0 92 4.6 4.3 107
DEER PARK 9700 3.5 4.0 88 5.3 5.5 96
LAPRELE CREEK 8375 2.4 2.4 100 3.2 3.5 91
RENO HILL 8500 3.9 3.3 118 4.9 4.2 117
ROACH 9700 4.8 3.1 155 6.2 4.2 148
SAND LAKE 10050 6.4 7.0 91 6.8 5.7 119
SOUTH PASS 9040 3.6 3.7 97 4.9 4.6 107
WINDY PEAK 7900 1.5 1.7 88 2.7 3.0 90
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Basin wide percent of average 100 109
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .6 1.4 43 3.9 3.5 111
DIVIDE PEAK 8860 4.7 3.8 124 6.9 5.0 138
OLD BATTLE 9920 7.5 6.7 112 9.6 7.2 133
SANDSTONE RS 8150 1.1 1.6 69 4.3 4.4 98
WHISKEY PARK 8950 3.8 4.5 84 6.7 6.0 112
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Basin wide percent of average 98 120
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.5 2.9 121 4.2 3.4 124
BLIND BULL SUM 8900 5.4 4.9 110 5.7 4.9 116
EAST RIM DIVIDE 7930 1.4 2.2 64 3.4 2.7 126
ELKHART PARK G.S. 9400 2.1 2.5 84 4.1 3.5 117
GROS VENTRE SUMMIT 8750 3.2 2.9 110 4.6 3.4 135
KENDALL R.S. 7740 1.6 2.2 73 4.1 3.2 128
LOOMIS PARK 8240 2.1 3.0 70 4.7 3.8 124
NEW FORK LAKE 8340 1.8 1.9 95 4.0 3.0 133
SNIDER BASIN 8060 2.8 2.4 117 4.4 3.5 126
SPRING CREEK DIVIDE 9000 5.3 4.6 115 6.7 5.6 120
TRIPLE PEAK 8500 4.8 4.2 114 7.4 5.0 148
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Basin wide percent of average 101 127
LOWER GREEN RIVER
HAMS FORK 7840 2.0 1.6 125 3.6 2.8 129
HEWINTA 9500 .4 1.6 25 4.9 4.0 123
HICKERSON PARK 9100 .4 1.1 36 3.8 2.7 141
HOLE-IN-ROCK 9150 2.0 1.2 167 3.5 2.5 140
INDIAN CREEK 9425 5.3 4.6 115 5.9 5.4 109
KELLEY R.S. 8180 3.3 2.9 114 5.1 4.4 116
STEEL CREEK PARK 10100 3.6 3.1 116 5.0 4.2 119
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Basin wide percent of average 106 122
UPPER BEAR RIVER
BUG LAKE 7950 3.1 2.9 107 5.4 4.5 120
HAYDEN FORK 9100 2.0 2.2 91 7.5 4.8 156
KELLEY R.S. 8180 3.3 2.9 114 5.1 4.4 116
LILY LAKE 9050 2.8 2.1 133 5.6 4.5 124
MONTE CRISTO 8960 5.4 3.7 146 7.6 5.7 133
SALT RIVER SUMMIT 7600 2.4 1.6 150 4.9 3.9 126
TRIAL LAKE 9960 3.7 4.2 88 7.4 5.3 140
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Basin wide percent of average 116 131
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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.