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: DECEMBER 24 , 2005
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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 6.8 7.1 96 10.4 9.3 112
COTTONWOOD CREEK 7600 8.3 8.4 99 11.6 12.1 96
GRANITE CREEK 6770 6.8 6.5 105 9.5 8.4 113
GRASSY LAKE 7265 12.6 12.9 98 17.4 15.3 114
GROS VENTRE SUMMIT 8750 5.1 6.1 84 6.2 5.9 105
LEWIS LAKE DIVIDE 7850 12.6 13.0 97 16.1 15.5 104
PHILLIPS BENCH 8200 10.5 11.0 95 12.4 11.9 104
SALT RIVER SUMMIT 7600 5.2 4.7 111 7.1 8.0 89
SNAKE RIVER STATION 6920 6.5 6.9 94 11.4 9.8 116
SPRING CREEK DIVIDE 9000 10.5 11.1 95 10.9 11.5 95
THUMB DIVIDE 7980 6.8 6.7 101 8.9 8.1 110
TOGWOTEE PASS 9580 11.0 10.5 105 11.7 10.8 108
TWO OCEAN PLATEAU 9240 16.0 12.2 131 13.6 12.1 112
WILLOW CREEK 8450 10.6 12.6 84 15.0 13.9 108
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Basin wide percent of average 100 106
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 10.6 10.4 102 8.8 8.9 99
BLACK BEAR 8170 18.0 15.4 117 19.3 15.8 122
CANYON 8090 5.9 5.3 111 8.2 7.0 117
FISHER CREEK 9100 17.6 14.6 121 17.3 15.2 114
MADISON PLATEAU 7750 9.4 10.0 94 12.9 11.1 116
NORTHEAST ENTRANCE 7350 3.7 4.4 84 6.0 5.8 103
PARKER PEAK 9400 8.9 9.6 93 8.8 7.5 117
SYLVAN LAKE 8420 7.2 9.5 76 10.7 10.0 107
THUMB DIVIDE 7980 6.8 6.7 101 8.9 8.1 110
TWO OCEAN PLATEAU 9240 16.0 12.2 131 13.6 12.1 112
WHISKEY CREEK 6800 4.8 6.6 73 9.7 8.9 109
WHITE MILL 8700 10.3 10.1 102 10.4 11.5 90
WOLVERINE 7650 4.4 5.0 88 4.5 6.4 70
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Basin wide percent of average 103 108
WIND RIVER
BURROUGHS CREEK 8750 -M 6.0 * 8.2 7.2 114
COLD SPRINGS 9630 2.0 4.3 47 4.4 5.3 83
DEER PARK 9700 5.6 6.2 90 7.5 9.9 76
HOBBS PARK 10100 3.6 7.1 51 4.8 5.9 81
LITTLE WARM 9370 3.9 4.8 81 5.9 6.2 95
SOUTH PASS 9040 5.3 7.5 71 6.8 8.4 81
ST. LAWRENCE ALT 8620 .7 3.6 19 2.9 4.3 67
TOGWOTEE PASS 9580 11.0 10.5 105 11.7 10.8 108
TOWNSEND CREEK 8700 2.2 4.1 54 4.8 5.6 86
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Basin wide percent of average 71 90
BIGHORN BASIN
BALD MTN. 9380 7.2 8.8 82 5.8 7.7 75
BEAR TRAP MEADOW 8200 2.5 2.4 104 4.4 4.2 105
BLACKWATER 9780 10.0 11.0 91 8.8 9.9 89
BONE SPRINGS DIV 9350 6.8 7.1 96 6.8 6.7 101
EVENING STAR 9200 10.3 12.5 82 12.8 11.8 108
GRAVE SPRINGS 8550 3.7 3.6 103 6.1 4.6 133
KIRWIN 9550 5.8 5.5 105 6.2 5.4 115
MARQUETTE 8760 1.1 4.7 23 4.1 5.0 82
MIDDLE POWDER 7760 5.5 5.1 108 5.9 6.3 94
OWL CREEK 8975 1.1 2.5 44 3.4 2.7 126
POWDER RIVER PASS 9480 4.2 4.8 88 6.0 5.5 109
SHELL CREEK 9580 5.9 6.7 88 5.8 6.1 95
SYLVAN LAKE 8420 7.2 9.5 76 10.7 10.0 107
SYLVAN ROAD 7120 4.3 5.6 77 8.7 9.2 95
TIMBER CREEK 7950 1.0 2.8 36 3.1 3.5 89
YOUNTS PEAK 8350 -M 7.1 * 9.5 7.4 128
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Basin wide percent of average 83 102
SHOSHONE RIVER
BLACKWATER 9780 10.0 11.0 91 8.8 9.9 89
EVENING STAR 9200 10.3 12.5 82 12.8 11.8 108
KIRWIN 9550 5.8 5.5 105 6.2 5.4 115
MARQUETTE 8760 1.1 4.7 23 4.1 5.0 82
SYLVAN LAKE 8420 7.2 9.5 76 10.7 10.0 107
SYLVAN ROAD 7120 4.3 5.6 77 8.7 9.2 95
YOUNTS PEAK 8350 -M 7.1 * 9.5 7.4 128
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Basin wide percent of average 79 104
POWDER-TONGUE
BEAR TRAP MEADOW 8200 2.5 2.4 104 4.4 4.2 105
BIG GOOSE 7990 2.6 3.9 67 4.8 4.1 117
BONE SPRINGS DIV 9350 6.8 7.1 96 6.8 6.7 101
BURGESS JUNCTION 7880 5.0 5.0 100 6.4 5.6 114
CLOUD PEAK RESERVOIR 9860 5.4 5.2 104 5.9 6.0 98
DOME LAKE 8880 5.2 5.6 93 6.0 6.4 94
GRAVE SPRINGS 8550 3.7 3.6 103 6.1 4.6 133
HANSEN SAWMILL 8360 1.8 3.0 60 3.5 4.0 88
MIDDLE POWDER 7760 5.5 5.1 108 5.9 6.3 94
POWDER RIVER PASS 9480 4.2 4.8 88 6.0 5.5 109
SUCKER CREEK 8880 4.8 4.7 102 7.2 6.1 118
TIE CREEK 6870 2.8 2.0 140 6.1 4.7 130
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Basin wide percent of average 96 108
BELLE FOURCHE
BLIND PARK 6890 3.7 3.0 123 5.5 5.8 95
COLE CANYON 5910 2.7 2.7 100 4.5 -M *
NORTH RAPID CREEK 6130 3.3 2.9 114 4.5 4.9 92
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Basin wide percent of average 113 93
UPPER N. PLATTE RIVER
COLUMBINE 9160 13.9 8.6 162 17.2 10.2 169
DIVIDE PEAK 8860 7.3 8.1 90 10.8 9.0 120
ELK RIVER 8700 7.2 6.1 118 10.2 7.9 129
JOE WRIGHT 10120 11.9 8.8 135 14.7 10.8 136
NORTH FRENCH CREEK 10130 14.6 11.9 123 15.7 10.8 145
OLD BATTLE 9920 15.5 13.3 117 19.4 14.3 136
SAGE CREEK BASIN 7850 4.1 4.7 87 6.6 5.2 127
SOUTH BRUSH CREEK 8440 6.0 4.5 133 9.6 7.1 135
TOWER 10500 23.0 18.6 124 25.1 16.0 157
WEBBER SPRINGS 9250 10.4 10.3 101 15.5 11.7 132
WILLOW CREEK PASS 9540 6.3 5.1 124 7.6 5.9 129
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Basin wide percent of average 120 140
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 10.7 9.5 113 8.4 9.1 92
CASPER MTN. 7850 4.7 6.3 75 7.5 6.7 112
DEADMAN HILL 10220 7.9 6.9 114 9.2 7.2 128
DEER PARK 9700 5.6 6.2 90 7.5 9.9 76
LAPRELE CREEK 8375 2.6 4.8 54 4.1 5.7 72
RENO HILL 8500 5.4 6.0 90 7.0 6.7 104
ROACH 9700 7.3 6.5 112 10.3 7.6 136
SAND LAKE 10050 14.7 13.5 109 14.9 10.5 142
SOUTH PASS 9040 5.3 7.5 71 6.8 8.4 81
WINDY PEAK 7900 2.1 3.2 66 4.0 5.0 80
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Basin wide percent of average 94 104
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 5.5 3.4 162 8.4 6.4 131
DIVIDE PEAK 8860 7.3 8.1 90 10.8 9.0 120
OLD BATTLE 9920 15.5 13.3 117 19.4 14.3 136
SANDSTONE RS 8150 5.5 4.5 122 10.6 8.0 132
WHISKEY PARK 8950 12.9 9.7 133 16.0 11.8 136
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Basin wide percent of average 120 132
UPPER GREEN RIVER
BIG SANDY OPENING 9080 4.0 6.2 65 4.9 6.0 82
BLIND BULL SUM 8900 9.6 11.6 83 8.4 9.9 85
EAST RIM DIVIDE 7930 4.0 5.2 77 4.7 5.2 90
ELKHART PARK G.S. 9400 5.1 5.6 91 6.0 6.1 98
GROS VENTRE SUMMIT 8750 5.1 6.1 84 6.2 5.9 105
KENDALL R.S. 7740 5.1 5.8 88 6.4 6.2 103
LOOMIS PARK 8240 6.6 7.1 93 7.5 7.4 101
NEW FORK LAKE 8340 4.0 4.7 85 4.2 5.4 78
SNIDER BASIN 8060 6.4 6.1 105 6.5 7.0 93
SPRING CREEK DIVIDE 9000 10.5 11.1 95 10.9 11.5 95
TRIPLE PEAK 8500 10.2 10.5 97 11.9 10.0 119
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Basin wide percent of average 88 96
LOWER GREEN RIVER
HAMS FORK 7840 4.2 4.7 89 4.9 5.2 94
HEWINTA 9500 4.6 3.5 131 7.1 6.5 109
HICKERSON PARK 9100 1.3 2.5 52 3.5 3.9 90
HOLE-IN-ROCK 9150 3.5 2.4 146 4.0 3.7 108
INDIAN CREEK 9425 10.1 11.0 92 9.6 10.9 88
KELLEY R.S. 8180 6.1 6.8 90 7.7 9.0 86
STEEL CREEK PARK 10100 6.1 6.0 102 7.6 7.0 109
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Basin wide percent of average 97 96
UPPER BEAR RIVER
BUG LAKE 7950 7.4 7.1 104 8.3 8.3 100
HAYDEN FORK 9100 7.3 5.4 135 9.9 9.0 110
KELLEY R.S. 8180 6.1 6.8 90 7.7 9.0 86
LILY LAKE 9050 5.5 4.8 115 7.0 7.9 89
MONTE CRISTO 8960 10.4 9.4 111 11.7 10.9 107
SALT RIVER SUMMIT 7600 5.2 4.7 111 7.1 8.0 89
TRIAL LAKE 9960 10.9 9.2 118 11.5 10.0 115
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Basin wide percent of average 111 100
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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.