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 SATURDAY: NOVEMBER 18 , 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 2.4 88 5.6 4.4 127
COTTONWOOD CREEK 7600 4.6 2.8 164 7.4 5.9 125
GRANITE CREEK 6770 2.2 1.9 116 5.3 3.8 139
GRASSY LAKE 7265 4.4 4.6 96 11.3 7.0 161
GROS VENTRE SUMMIT 8750 3.3 2.7 122 4.6 3.3 139
LEWIS LAKE DIVIDE 7850 4.7 4.5 104 10.5 7.0 150
PHILLIPS BENCH 8200 3.4 4.0 85 7.8 5.3 147
SALT RIVER SUMMIT 7600 2.4 1.5 160 4.8 3.7 130
SNAKE RIVER STATION 6920 2.4 2.3 104 8.7 4.6 189
SPRING CREEK DIVIDE 9000 5.2 4.2 124 6.6 5.3 125
THUMB DIVIDE 7980 1.9 2.5 76 4.5 4.0 112
TOGWOTEE PASS 9580 5.3 5.0 106 6.5 5.4 120
TWO OCEAN PLATEAU 9240 5.3 5.9 90 6.6 6.0 110
WILLOW CREEK 8450 5.3 4.9 108 8.9 7.0 127
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Basin wide percent of average 107 136
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.9 5.1 76 4.5 4.3 105
BLACK BEAR 8170 7.0 6.3 111 10.9 7.5 145
CANYON 8090 2.2 2.0 110 5.1 3.5 146
FISHER CREEK 9100 7.0 6.0 117 10.0 7.0 143
MADISON PLATEAU 7750 3.2 3.8 84 6.8 5.2 131
NORTHEAST ENTRANCE 7350 .6 1.4 43 5.2 3.0 173
PARKER PEAK 9400 4.3 4.8 90 5.8 4.2 138
SYLVAN LAKE 8420 2.7 4.4 61 7.3 5.2 140
THUMB DIVIDE 7980 1.9 2.5 76 4.5 4.0 112
TWO OCEAN PLATEAU 9240 5.3 5.9 90 6.6 6.0 110
WHISKEY CREEK 6800 2.1 2.3 91 5.8 4.3 135
WHITE MILL 8700 4.3 4.4 98 7.2 5.6 129
WOLVERINE 7650 1.3 1.8 72 3.6 3.4 106
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Basin wide percent of average 90 132
WIND RIVER
BURROUGHS CREEK 8750 2.5 2.5 100 4.4 3.5 126
COLD SPRINGS 9630 1.1 2.3 48 2.3 3.2 72
DEER PARK 9700 3.4 3.8 89 5.2 5.2 100
HOBBS PARK 10100 2.7 4.0 68 3.1 3.6 86
LITTLE WARM 9370 2.0 2.4 83 2.9 3.4 85
SOUTH PASS 9040 3.4 3.4 100 5.0 4.4 114
ST. LAWRENCE ALT 8620 1.4 2.0 70 2.5 2.8 89
TOGWOTEE PASS 9580 5.3 5.0 106 6.5 5.4 120
TOWNSEND CREEK 8700 2.0 2.2 91 4.2 3.5 120
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Basin wide percent of average 86 103
BIGHORN BASIN
BALD MTN. 9380 6.4 4.8 133 5.0 4.1 122
BEAR TRAP MEADOW 8200 1.6 1.2 133 2.5 2.7 93
BLACKWATER 9780 5.0 5.6 89 5.4 5.3 102
BONE SPRINGS DIV 9350 5.8 4.3 135 4.7 3.9 121
EVENING STAR 9200 4.4 5.8 76 -M 5.9 *
GRAVE SPRINGS 8550 2.0 2.1 95 2.5 3.0 83
KIRWIN 9550 2.6 3.2 81 3.6 3.1 116
MARQUETTE 8760 .2 3.0 7 2.7 3.4 79
MIDDLE POWDER 7760 2.9 2.7 107 3.4 3.9 87
OWL CREEK 8975 2.0 1.6 125 2.5 1.8 139
POWDER RIVER PASS 9480 2.9 2.5 116 3.5 3.2 109
SHELL CREEK 9580 5.6 4.1 137 4.0 3.5 114
SYLVAN LAKE 8420 2.7 4.4 61 7.3 5.2 140
SYLVAN ROAD 7120 .6 2.0 30 5.3 4.7 113
TIMBER CREEK 7950 .3 2.0 15 2.7 2.4 113
YOUNTS PEAK 8350 1.7 3.2 53 4.6 3.8 121
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Basin wide percent of average 89 111
SHOSHONE RIVER
BLACKWATER 9780 5.0 5.6 89 5.4 5.3 102
EVENING STAR 9200 4.4 5.8 76 -M 5.9 *
KIRWIN 9550 2.6 3.2 81 3.6 3.1 116
MARQUETTE 8760 .2 3.0 7 2.7 3.4 79
SYLVAN LAKE 8420 2.7 4.4 61 7.3 5.2 140
SYLVAN ROAD 7120 .6 2.0 30 5.3 4.7 113
YOUNTS PEAK 8350 1.7 3.2 53 4.6 3.8 121
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Basin wide percent of average 63 113
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.6 1.2 133 2.5 2.7 93
BIG GOOSE 7990 1.2 1.6 75 2.7 2.7 100
BONE SPRINGS DIV 9350 5.8 4.3 135 4.7 3.9 121
BURGESS JUNCTION 7880 2.3 2.8 82 4.0 3.4 118
CLOUD PEAK RESERVOIR 9860 2.9 2.9 100 2.8 3.9 72
DOME LAKE 8880 2.4 3.4 71 3.5 3.9 90
GRAVE SPRINGS 8550 2.0 2.1 95 2.5 3.0 83
HANSEN SAWMILL 8360 .4 1.4 29 1.5 2.6 58
MIDDLE POWDER 7760 2.9 2.7 107 3.4 3.9 87
POWDER RIVER PASS 9480 2.9 2.5 116 3.5 3.2 109
SUCKER CREEK 8880 3.6 2.5 144 4.3 3.6 119
TIE CREEK 6870 .7 1.2 58 3.9 3.2 122
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Basin wide percent of average 100 98
BELLE FOURCHE
BLIND PARK 6890 .8 1.6 50 2.9 3.7 78
COLE CANYON 5910 1.2 1.5 80 3.1 -M *
NORTH RAPID CREEK 6130 .6 1.1 55 2.4 3.3 73
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Basin wide percent of average 62 76
UPPER N. PLATTE RIVER
COLUMBINE 9160 3.6 3.0 120 6.4 4.7 136
DIVIDE PEAK 8860 4.6 3.6 128 6.9 4.7 147
ELK RIVER 8700 2.9 1.9 153* 5.3 3.9 136
JOE WRIGHT 10120 5.0 4.8 104 6.9 5.9 117
NORTH FRENCH CREEK 10130 6.4 5.8 110 7.4 5.8 128
OLD BATTLE 9920 7.5 6.3 119 9.4 6.9 136
SAGE CREEK BASIN 7850 3.6 2.1 171 5.2 2.7 193
SOUTH BRUSH CREEK 8440 2.5 1.9 132 4.3 4.1 105
TOWER 10500 8.5 8.6 99 10.5 7.8 135
WEBBER SPRINGS 9250 5.0 4.5 111 8.2 5.8 141
WILLOW CREEK PASS 9540 3.5 2.6 135 3.5 3.4 103
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Basin wide percent of average 118 133
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 4.6 4.2 110 5.5 4.6 120
CASPER MTN. 7850 3.0 3.4 88 4.0 4.1 98
DEADMAN HILL 10220 3.4 3.9 87 4.6 4.1 112
DEER PARK 9700 3.4 3.8 89 5.2 5.2 100
LAPRELE CREEK 8375 2.4 2.2 109 3.1 3.3 94
RENO HILL 8500 3.9 3.2 122 4.9 4.0 123
ROACH 9700 4.8 2.9 166 6.1 4.0 152
SAND LAKE 10050 6.3 6.6 95 6.8 5.5 124
SOUTH PASS 9040 3.4 3.4 100 5.0 4.4 114
WINDY PEAK 7900 1.5 1.6 94 2.7 2.9 93
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Basin wide percent of average 104 114
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .8 1.2 67 4.0 3.4 118
DIVIDE PEAK 8860 4.6 3.6 128 6.9 4.7 147
OLD BATTLE 9920 7.5 6.3 119 9.4 6.9 136
SANDSTONE RS 8150 1.0 1.5 67 4.4 4.2 105
WHISKEY PARK 8950 3.9 4.2 93 6.7 5.7 118
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Basin wide percent of average 106 126
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.7 2.7 137 4.3 3.3 130
BLIND BULL SUM 8900 5.3 4.5 118 5.5 4.6 120
EAST RIM DIVIDE 7930 1.4 2.0 70 3.4 2.6 131
ELKHART PARK G.S. 9400 2.1 2.3 91 4.1 3.4 121
GROS VENTRE SUMMIT 8750 3.3 2.7 122 4.6 3.3 139
KENDALL R.S. 7740 1.7 2.0 85 4.1 3.0 137
LOOMIS PARK 8240 2.2 2.7 81 4.8 3.6 133
NEW FORK LAKE 8340 1.8 1.7 106 4.1 2.8 146
SNIDER BASIN 8060 2.8 2.2 127 4.4 3.3 133
SPRING CREEK DIVIDE 9000 5.2 4.2 124 6.6 5.3 125
TRIPLE PEAK 8500 4.8 3.9 123 7.4 4.7 157
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Basin wide percent of average 111 134
LOWER GREEN RIVER
HAMS FORK 7840 2.0 1.4 143 3.5 2.6 135
HEWINTA 9500 .5 1.6 31 5.0 3.9 128
HICKERSON PARK 9100 .4 1.0 40 3.8 2.6 146
HOLE-IN-ROCK 9150 1.5 1.1 136 3.4 2.4 142
INDIAN CREEK 9425 5.4 4.3 126 5.9 5.1 116
KELLEY R.S. 8180 3.3 2.7 122 5.1 4.2 121
STEEL CREEK PARK 10100 3.6 2.9 124 5.0 4.0 125
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Basin wide percent of average 111 128
UPPER BEAR RIVER
BUG LAKE 7950 3.0 2.7 111 5.5 4.3 128
HAYDEN FORK 9100 2.1 2.0 105 7.3 4.5 162
KELLEY R.S. 8180 3.3 2.7 122 5.1 4.2 121
LILY LAKE 9050 2.7 2.0 135 5.6 4.3 130
MONTE CRISTO 8960 5.3 3.4 156 7.5 5.4 139
SALT RIVER SUMMIT 7600 2.4 1.5 160 4.8 3.7 130
TRIAL LAKE 9960 3.8 3.9 97 7.4 5.1 145
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Basin wide percent of average 124 137
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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.