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 19 , 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 2.5 84 5.6 4.5 124
COTTONWOOD CREEK 7600 4.7 3.0 157 7.5 6.0 125
GRANITE CREEK 6770 2.1 2.0 105 5.2 4.0 130
GRASSY LAKE 7265 4.3 4.8 90 11.1 7.2 154
GROS VENTRE SUMMIT 8750 3.1 2.8 111 4.6 3.3 139
LEWIS LAKE DIVIDE 7850 4.8 4.8 100 10.3 7.3 141
PHILLIPS BENCH 8200 3.3 4.2 79 7.7 5.4 143
SALT RIVER SUMMIT 7600 2.3 1.6 144 4.8 3.8 126
SNAKE RIVER STATION 6920 2.3 2.4 96 8.7 4.8 181
SPRING CREEK DIVIDE 9000 5.2 4.4 118 6.6 5.5 120
THUMB DIVIDE 7980 1.9 2.6 73 4.6 4.1 112
TOGWOTEE PASS 9580 5.2 5.2 100 6.4 5.5 116
TWO OCEAN PLATEAU 9240 5.3 6.1 87 6.6 6.2 106
WILLOW CREEK 8450 5.5 5.2 106 9.1 7.2 126
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Basin wide percent of average 101 132
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.8 5.3 72 4.5 4.4 102
BLACK BEAR 8170 6.9 6.5 106 10.9 7.7 142
CANYON 8090 2.2 2.1 105 5.1 3.6 142
FISHER CREEK 9100 7.0 6.2 113 10.0 7.2 139
MADISON PLATEAU 7750 3.1 4.0 78 6.8 5.4 126
NORTHEAST ENTRANCE 7350 .6 1.5 40 5.2 3.0 173
PARKER PEAK 9400 4.3 5.0 86 5.7 4.3 133
SYLVAN LAKE 8420 2.6 4.5 58 7.2 5.3 136
THUMB DIVIDE 7980 1.9 2.6 73 4.6 4.1 112
TWO OCEAN PLATEAU 9240 5.3 6.1 87 6.6 6.2 106
WHISKEY CREEK 6800 2.1 2.4 88 5.8 4.5 129
WHITE MILL 8700 4.3 4.6 93 7.1 5.7 125
WOLVERINE 7650 1.3 1.9 68 3.5 3.5 100
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Basin wide percent of average 86 128
WIND RIVER
BURROUGHS CREEK 8750 2.3 2.6 88 4.2 3.6 117
COLD SPRINGS 9630 1.1 2.4 46 2.3 3.3 70
DEER PARK 9700 3.3 3.9 85 5.2 5.3 98
HOBBS PARK 10100 2.6 4.1 63 2.9 3.6 81
LITTLE WARM 9370 2.0 2.5 80 2.7 3.5 77
SOUTH PASS 9040 3.3 3.6 92 5.0 4.5 111
ST. LAWRENCE ALT 8620 1.3 2.0 65 2.5 2.8 89
TOGWOTEE PASS 9580 5.2 5.2 100 6.4 5.5 116
TOWNSEND CREEK 8700 1.8 2.2 82 4.0 3.6 111
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Basin wide percent of average 80 99
BIGHORN BASIN
BALD MTN. 9380 6.3 4.8 131 4.9 4.2 117
BEAR TRAP MEADOW 8200 1.6 1.2 133 2.5 2.8 89
BLACKWATER 9780 4.9 5.8 84 5.4 5.4 100
BONE SPRINGS DIV 9350 5.9 4.4 134 4.7 4.0 118
EVENING STAR 9200 4.4 6.0 73 -M 6.1 *
GRAVE SPRINGS 8550 2.0 2.2 91 2.5 3.0 83
KIRWIN 9550 2.5 3.3 76 3.4 3.2 106
MARQUETTE 8760 .2 3.0 7 2.7 3.4 79
MIDDLE POWDER 7760 2.9 2.8 104 3.4 4.0 85
OWL CREEK 8975 2.0 1.6 125 2.5 1.8 139
POWDER RIVER PASS 9480 2.8 2.5 112 3.5 3.3 106
SHELL CREEK 9580 5.6 4.2 133 4.0 3.5 114
SYLVAN LAKE 8420 2.6 4.5 58 7.2 5.3 136
SYLVAN ROAD 7120 .6 2.1 29 5.3 4.8 110
TIMBER CREEK 7950 .2 2.0 10 2.7 2.5 108
YOUNTS PEAK 8350 1.7 3.3 52 4.3 3.9 110
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Basin wide percent of average 86 107
SHOSHONE RIVER
BLACKWATER 9780 4.9 5.8 84 5.4 5.4 100
EVENING STAR 9200 4.4 6.0 73 -M 6.1 *
KIRWIN 9550 2.5 3.3 76 3.4 3.2 106
MARQUETTE 8760 .2 3.0 7 2.7 3.4 79
SYLVAN LAKE 8420 2.6 4.5 58 7.2 5.3 136
SYLVAN ROAD 7120 .6 2.1 29 5.3 4.8 110
YOUNTS PEAK 8350 1.7 3.3 52 4.3 3.9 110
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Basin wide percent of average 60 109
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.6 1.2 133 2.5 2.8 89
BIG GOOSE 7990 1.2 1.7 71 2.7 2.7 100
BONE SPRINGS DIV 9350 5.9 4.4 134 4.7 4.0 118
BURGESS JUNCTION 7880 2.3 2.9 79 4.1 3.4 121
CLOUD PEAK RESERVOIR 9860 3.0 3.0 100 3.1 4.0 78
DOME LAKE 8880 2.4 3.4 71 3.5 4.0 88
GRAVE SPRINGS 8550 2.0 2.2 91 2.5 3.0 83
HANSEN SAWMILL 8360 .4 1.5 27 1.5 2.7 56
MIDDLE POWDER 7760 2.9 2.8 104 3.4 4.0 85
POWDER RIVER PASS 9480 2.8 2.5 112 3.5 3.3 106
SUCKER CREEK 8880 3.6 2.6 138 4.3 3.7 116
TIE CREEK 6870 .7 1.2 58 3.9 3.3 118
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Basin wide percent of average 98 97
BELLE FOURCHE
BLIND PARK 6890 .9 1.6 56 3.0 3.8 79
COLE CANYON 5910 1.2 1.5 80 3.2 -M *
NORTH RAPID CREEK 6130 .6 1.2 50 2.5 3.3 76
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Basin wide percent of average 63 77
UPPER N. PLATTE RIVER
COLUMBINE 9160 3.5 3.2 109 6.4 4.8 133
DIVIDE PEAK 8860 4.5 3.7 122 6.8 4.8 142
ELK RIVER 8700 3.0 2.0 150 5.2 4.0 130
JOE WRIGHT 10120 4.9 5.0 98 6.8 6.0 113
NORTH FRENCH CREEK 10130 6.4 6.0 107 7.4 5.9 125
OLD BATTLE 9920 7.5 6.5 115 9.3 7.1 131
SAGE CREEK BASIN 7850 3.6 2.2 164 5.2 2.8 186
SOUTH BRUSH CREEK 8440 2.5 2.0 125 4.3 4.2 102
TOWER 10500 8.5 8.9 96 10.4 8.0 130
WEBBER SPRINGS 9250 5.0 4.7 106 8.1 6.0 135
WILLOW CREEK PASS 9540 3.5 2.7 130 3.4 3.5 97
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Basin wide percent of average 113 128
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 4.6 4.3 107 5.5 4.8 115
CASPER MTN. 7850 3.0 3.5 86 4.0 4.2 95
DEADMAN HILL 10220 3.6 4.0 90 4.6 4.2 110
DEER PARK 9700 3.3 3.9 85 5.2 5.3 98
LAPRELE CREEK 8375 2.3 2.3 100 3.1 3.4 91
RENO HILL 8500 3.8 3.2 119 4.8 4.1 117
ROACH 9700 4.7 3.0 157 6.1 4.1 149
SAND LAKE 10050 6.2 6.8 91 6.6 5.6 118
SOUTH PASS 9040 3.3 3.6 92 5.0 4.5 111
WINDY PEAK 7900 1.4 1.6 87 2.5 2.9 86
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Basin wide percent of average 100 110
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .8 1.3 62 3.9 3.4 115
DIVIDE PEAK 8860 4.5 3.7 122 6.8 4.8 142
OLD BATTLE 9920 7.5 6.5 115 9.3 7.1 131
SANDSTONE RS 8150 1.0 1.6 62 4.3 4.3 100
WHISKEY PARK 8950 3.9 4.3 91 6.7 5.9 114
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Basin wide percent of average 102 122
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.4 2.8 121 4.1 3.3 124
BLIND BULL SUM 8900 5.4 4.7 115 5.7 4.8 119
EAST RIM DIVIDE 7930 1.3 2.1 62 3.4 2.7 126
ELKHART PARK G.S. 9400 2.0 2.4 83 4.0 3.4 118
GROS VENTRE SUMMIT 8750 3.1 2.8 111 4.6 3.3 139
KENDALL R.S. 7740 1.6 2.1 76 3.8 3.1 123
LOOMIS PARK 8240 2.1 2.8 75 4.6 3.7 124
NEW FORK LAKE 8340 1.7 1.8 94 3.9 2.9 134
SNIDER BASIN 8060 2.7 2.3 117 4.3 3.4 126
SPRING CREEK DIVIDE 9000 5.2 4.4 118 6.6 5.5 120
TRIPLE PEAK 8500 4.8 4.0 120 7.3 4.8 152
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Basin wide percent of average 103 128
LOWER GREEN RIVER
HAMS FORK 7840 1.9 1.5 127 3.5 2.7 130
HEWINTA 9500 .3 1.6 19 4.6 3.9 118
HICKERSON PARK 9100 .0 1.1 0 3.6 2.6 138
HOLE-IN-ROCK 9150 1.4 1.1 127 3.4 2.5 136
INDIAN CREEK 9425 5.3 4.5 118 5.8 5.3 109
KELLEY R.S. 8180 3.2 2.8 114 5.0 4.3 116
STEEL CREEK PARK 10100 3.4 3.0 113 4.9 4.1 120
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Basin wide percent of average 99 121
UPPER BEAR RIVER
BUG LAKE 7950 3.0 2.8 107 5.3 4.4 120
HAYDEN FORK 9100 1.9 2.1 90 7.2 4.7 153
KELLEY R.S. 8180 3.2 2.8 114 5.0 4.3 116
LILY LAKE 9050 2.7 2.1 129 5.6 4.4 127
MONTE CRISTO 8960 5.3 3.5 151 7.5 5.5 136
SALT RIVER SUMMIT 7600 2.3 1.6 144 4.8 3.8 126
TRIAL LAKE 9960 3.8 4.0 95 7.3 5.2 140
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Basin wide percent of average 117 132
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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.