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 WEDNESDAY: JANUARY 19 , 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 8.9 10.9 82 10.4 13.0 80
COTTONWOOD CREEK 7600 10.2 12.4 82 12.7 16.5 77
GRANITE CREEK 6770 9.2 10.4 88 11.7 11.9 98
GRASSY LAKE 7265 15.7 19.6 80 17.1 21.8 78
GROS VENTRE SUMMIT 8750 8.1 8.5 95 7.7 7.7 100
LEWIS LAKE DIVIDE 7850 15.1 19.6 77 15.8 21.8 72
PHILLIPS BENCH 8200 15.6 16.1 97 16.1 17.0 95
SALT RIVER SUMMIT 7600 8.5 7.6 112 11.3 11.1 102
SNAKE RIVER STATION 6920 7.8 10.5 74 10.0 13.7 73
SPRING CREEK DIVIDE 9000 16.1 15.3 105 15.6 16.1 97
THUMB DIVIDE 7980 9.5 10.0 95 9.3 11.2 83
TOGWOTEE PASS 9580 11.2 14.8 76 11.4 14.8 77
TWO OCEAN PLATEAU 9240 15.5 16.7 93 12.6 16.4 77
WILLOW CREEK 8450 14.7 17.8 83 17.3 19.2 90
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Basin wide percent of average 87 84
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 9.7 14.4 67 8.6 12.3 70
BLACK BEAR 8170 23.2 22.4 104 -M 22.5 *
CANYON 8090 6.1 7.8 78 7.6 9.5 80
FISHER CREEK 9100 16.4 21.0 78 15.8 21.5 73
MADISON PLATEAU 7750 -M 14.3 * -M 15.4 *
NORTHEAST ENTRANCE 7350 3.6 6.7 54 4.9 7.9 62
PARKER PEAK 9400 10.3 13.1 79 8.5 9.9 86
SYLVAN LAKE 8420 -M 13.3 * -M 13.2 *
THUMB DIVIDE 7980 9.5 10.0 95 9.3 11.2 83
TWO OCEAN PLATEAU 9240 15.5 16.7 93 12.6 16.4 77
WHISKEY CREEK 6800 -M 9.6 * -M 12.2 *
WHITE MILL 8700 -M 14.3 * -M 16.0 *
WOLVERINE 7650 5.0 7.5 67 5.1 8.3 61
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Basin wide percent of average 83 75
WIND RIVER
BURROUGHS CREEK 8750 6.5 9.0 72 6.8 9.9 69
COLD SPRINGS 9630 5.6 5.5 102 5.9 6.5 91
DEER PARK 9700 16.3 9.7 168 18.4 13.0 142
HOBBS PARK 10100 11.0 9.0 122 10.1 7.4 136
LITTLE WARM 9370 5.6 6.9 81 6.2 8.1 77
SOUTH PASS 9040 14.3 10.1 142 15.0 10.9 138
ST. LAWRENCE ALT 8620 5.2 4.4 118 6.2 5.2 119
TOGWOTEE PASS 9580 11.2 14.8 76 11.4 14.8 77
TOWNSEND CREEK 8700 7.6 5.1 149 10.2 6.8 150
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Basin wide percent of average 112 109
BIGHORN BASIN
BALD MTN. 9380 9.6 12.1 79 9.4 10.4 90
BEAR TRAP MEADOW 8200 2.7 3.1 87 4.8 5.1 94
BLACKWATER 9780 9.6 14.7 65 9.2 12.8 72
BONE SPRINGS DIV 9350 8.8 9.6 92 8.8 8.6 102
EVENING STAR 9200 11.8 17.5 67 13.0 15.7 83
GRAVE SPRINGS 8550 3.9 5.1 76 5.6 5.8 97
KIRWIN 9550 4.7 7.1 66 5.4 6.9 78
MARQUETTE 8760 2.5 5.5 45 4.1 5.8 71
MIDDLE POWDER 7760 4.2 6.5 65 5.2 7.7 68
OWL CREEK 8975 2.4 3.1 77 2.7 3.4 79
POWDER RIVER PASS 9480 7.3 6.4 114 8.2 7.3 112
SHELL CREEK 9580 8.5 8.9 96 7.5 8.2 91
SYLVAN LAKE 8420 -M 13.3 * -M 13.2 *
SYLVAN ROAD 7120 5.5 7.9 70 8.0 12.0 67
TIMBER CREEK 7950 1.2 3.4 35 1.7 4.2 40
YOUNTS PEAK 8350 7.1 10.3 69 7.2 10.1 71
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Basin wide percent of average 74 81
SHOSHONE RIVER
BLACKWATER 9780 9.6 14.7 65 9.2 12.8 72
EVENING STAR 9200 11.8 17.5 67 13.0 15.7 83
KIRWIN 9550 4.7 7.1 66 5.4 6.9 78
MARQUETTE 8760 2.5 5.5 45 4.1 5.8 71
SYLVAN LAKE 8420 -M 13.3 * -M 13.2 *
SYLVAN ROAD 7120 5.5 7.9 70 8.0 12.0 67
YOUNTS PEAK 8350 7.1 10.3 69 7.2 10.1 71
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Basin wide percent of average 65 74
POWDER-TONGUE
BEAR TRAP MEADOW 8200 2.7 3.1 87 4.8 5.1 94
BIG GOOSE 7990 4.0 5.4 74 5.4 5.2 104
BONE SPRINGS DIV 9350 8.8 9.6 92 8.8 8.6 102
BURGESS JUNCTION 7880 4.5 6.6 68 5.6 7.1 79
CLOUD PEAK RESERVOIR 9860 8.4 7.2 117 7.1 7.4 96
DOME LAKE 8880 6.2 7.2 86 6.7 7.9 85
GRAVE SPRINGS 8550 3.9 5.1 76 5.6 5.8 97
HANSEN SAWMILL 8360 3.5 3.8 92 4.6 4.9 94
MIDDLE POWDER 7760 4.2 6.5 65 5.2 7.7 68
POWDER RIVER PASS 9480 7.3 6.4 114 8.2 7.3 112
SUCKER CREEK 8880 6.1 6.4 95 7.5 7.9 95
TIE CREEK 6870 1.1 3.6 31 4.6 6.1 75
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Basin wide percent of average 86 91
BELLE FOURCHE
BLIND PARK 6890 3.3 4.7 70 5.3 7.1 75
COLE CANYON 5910 1.7 3.6 47 4.5 -M *
NORTH RAPID CREEK 6130 2.3 4.2 55 4.1 5.9 69
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Basin wide percent of average 58 72
UPPER N. PLATTE RIVER
COLUMBINE 9160 12.6 13.7 92 14.0 14.5 97
DIVIDE PEAK 8860 14.2 11.5 123 16.7 12.1 138
ELK RIVER 8700 13.6 10.1 135 14.7 11.1 132
JOE WRIGHT 10120 12.1 12.1 100 12.6 14.4 88
NORTH FRENCH CREEK 10130 15.6 16.4 95 15.3 14.6 105
OLD BATTLE 9920 23.5 17.7 133 25.4 19.7 129
SAGE CREEK BASIN 7850 10.4 6.7 155 12.5 7.0 179
SOUTH BRUSH CREEK 8440 6.3 6.4 98 8.3 9.6 86
TOWER 10500 23.6 26.0 91 23.5 22.3 105
WEBBER SPRINGS 9250 16.8 14.1 119 19.4 15.9 122
WILLOW CREEK PASS 9540 9.8 6.7 146 9.8 7.5 131
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Basin wide percent of average 112 116
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 11.7 13.5 87 11.3 12.5 90
CASPER MTN. 7850 6.5 8.2 79 7.6 8.2 93
DEADMAN HILL 10220 10.4 9.4 111 8.3 9.5 87
DEER PARK 9700 16.3 9.7 168 18.4 13.0 142
LAPRELE CREEK 8375 4.3 6.5 66 6.5 7.3 89
RENO HILL 8500 5.2 7.7 68 6.1 8.4 73
ROACH 9700 9.6 9.5 101 12.0 10.4 115
SAND LAKE 10050 14.0 17.8 79 12.7 14.1 90
SOUTH PASS 9040 14.3 10.1 142 15.0 10.9 138
WINDY PEAK 7900 -M 4.0 * -M 6.4 *
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Basin wide percent of average 100 104
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 7.8 6.3 124 10.7 8.7 123
DIVIDE PEAK 8860 14.2 11.5 123 16.7 12.1 138
OLD BATTLE 9920 23.5 17.7 133 25.4 19.7 129
SANDSTONE RS 8150 7.6 7.9 96 13.5 11.0 123
WHISKEY PARK 8950 16.7 15.4 108 17.7 16.8 105
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Basin wide percent of average 119 123
UPPER GREEN RIVER
BIG SANDY OPENING 9080 11.5 8.4 137 11.1 8.0 139
BLIND BULL SUM 8900 12.6 16.3 77 11.2 13.6 82
EAST RIM DIVIDE 7930 5.6 7.4 76 6.7 7.1 94
ELKHART PARK G.S. 9400 7.8 7.7 101 9.0 8.0 112
GROS VENTRE SUMMIT 8750 8.1 8.5 95 7.7 7.7 100
KENDALL R.S. 7740 7.8 8.6 91 8.7 8.5 102
LOOMIS PARK 8240 9.2 9.9 93 10.0 10.3 97
NEW FORK LAKE 8340 6.8 6.7 101 6.7 7.1 94
SNIDER BASIN 8060 9.9 8.6 115 10.6 9.8 108
SPRING CREEK DIVIDE 9000 16.1 15.3 105 15.6 16.1 97
TRIPLE PEAK 8500 12.1 14.7 82 13.2 14.1 94
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Basin wide percent of average 96 100
LOWER GREEN RIVER
HAMS FORK 7840 8.1 7.2 112 9.4 7.3 129
HEWINTA 9500 5.4 5.6 96 8.1 8.3 98
HICKERSON PARK 9100 5.8 3.8 153 8.1 4.8 169
HOLE-IN-ROCK 9150 5.0 3.5 143 7.3 4.4 166
INDIAN CREEK 9425 18.6 15.5 120 16.6 14.9 111
KELLEY R.S. 8180 11.6 9.4 123 13.2 12.3 107
STEEL CREEK PARK 10100 10.0 8.2 122 10.8 9.1 119
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Basin wide percent of average 121 120
UPPER BEAR RIVER
BUG LAKE 7950 14.3 11.1 129 16.8 11.3 149
HAYDEN FORK 9100 12.7 8.3 153 17.8 12.1 147
KELLEY R.S. 8180 11.6 9.4 123 13.2 12.3 107
LILY LAKE 9050 9.9 7.1 139 12.8 10.3 124
MONTE CRISTO 8960 20.9 15.1 138 21.2 14.8 143
SALT RIVER SUMMIT 7600 8.5 7.6 112 11.3 11.1 102
TRIAL LAKE 9960 21.0 13.5 156 22.5 13.9 162
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Basin wide percent of average 137 135
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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.