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 12 , 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 8.2 9.9 83 9.7 12.0 81
COTTONWOOD CREEK 7600 9.7 11.4 85 12.1 15.3 79
GRANITE CREEK 6770 8.5 9.3 91 11.1 11.0 101
GRASSY LAKE 7265 14.0 17.7 79 15.4 20.0 77
GROS VENTRE SUMMIT 8750 7.8 7.9 99 7.6 7.2 106
LEWIS LAKE DIVIDE 7850 14.3 17.7 81 14.8 20.1 74
PHILLIPS BENCH 8200 14.2 14.7 97 14.8 15.6 95
SALT RIVER SUMMIT 7600 8.2 6.7 122 10.9 10.3 106
SNAKE RIVER STATION 6920 6.9 9.5 73 9.2 12.6 73
SPRING CREEK DIVIDE 9000 15.2 14.2 107 15.0 14.9 101
THUMB DIVIDE 7980 9.0 9.1 99 8.9 10.4 86
TOGWOTEE PASS 9580 10.3 13.6 76 10.5 13.7 77
TWO OCEAN PLATEAU 9240 14.9 15.5 96 12.1 15.3 79
WILLOW CREEK 8450 13.8 16.4 84 16.3 17.7 92
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Basin wide percent of average 89 86
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 8.6 13.4 64 7.6 11.4 67
BLACK BEAR 8170 21.5 20.5 105 19.3 20.6 94
CANYON 8090 5.7 7.2 79 7.0 8.9 79
FISHER CREEK 9100 14.6 19.4 75 14.3 19.8 72
MADISON PLATEAU 7750 12.8 13.2 97 14.2 14.2 100
NORTHEAST ENTRANCE 7350 2.9 6.1 48 4.4 7.3 60
PARKER PEAK 9400 9.6 12.2 79 7.8 9.2 85
SYLVAN LAKE 8420 9.1 12.2 75 10.6 12.3 86
THUMB DIVIDE 7980 9.0 9.1 99 8.9 10.4 86
TWO OCEAN PLATEAU 9240 14.9 15.5 96 12.1 15.3 79
WHISKEY CREEK 6800 -M 8.8 * -M 11.3 *
WHITE MILL 8700 9.4 13.2 71 9.1 14.8 61
WOLVERINE 7650 4.5 6.9 65 4.6 7.8 59
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Basin wide percent of average 82 79
WIND RIVER
BURROUGHS CREEK 8750 5.9 8.2 72 6.0 9.2 65
COLD SPRINGS 9630 -M 5.1 * -M 6.2 *
DEER PARK 9700 16.7 8.6 194 18.4 12.2 151
HOBBS PARK 10100 -M 8.5 * -M 7.0 *
LITTLE WARM 9370 5.3 6.3 84 5.8 7.6 76
SOUTH PASS 9040 14.2 9.4 151 14.9 10.3 145
ST. LAWRENCE ALT 8620 5.2 4.2 124 6.1 5.0 122
TOGWOTEE PASS 9580 10.3 13.6 76 10.5 13.7 77
TOWNSEND CREEK 8700 7.5 4.9 153 10.0 6.5 154
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Basin wide percent of average 118 111
BIGHORN BASIN
BALD MTN. 9380 9.2 11.3 81 8.5 9.7 88
BEAR TRAP MEADOW 8200 2.5 2.9 86 4.7 4.9 96
BLACKWATER 9780 9.0 13.7 66 8.1 12.0 68
BONE SPRINGS DIV 9350 8.4 9.0 93 7.9 8.1 98
EVENING STAR 9200 10.6 16.1 66 11.7 14.6 80
GRAVE SPRINGS 8550 3.9 4.7 83 5.5 5.4 102
KIRWIN 9550 4.4 6.7 66 4.8 6.5 74
MARQUETTE 8760 2.1 5.3 40 3.9 5.6 70
MIDDLE POWDER 7760 4.1 6.1 67 5.1 7.3 70
OWL CREEK 8975 2.1 2.9 72 2.5 3.2 78
POWDER RIVER PASS 9480 7.1 6.0 118 7.9 6.8 116
SHELL CREEK 9580 8.1 8.3 98 7.1 7.6 93
SYLVAN LAKE 8420 9.1 12.2 75 10.6 12.3 86
SYLVAN ROAD 7120 5.2 7.3 71 7.7 11.2 69
TIMBER CREEK 7950 1.1 3.2 34 1.9 4.0 48
YOUNTS PEAK 8350 6.2 9.4 66 6.6 9.3 71
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Basin wide percent of average 74 81
SHOSHONE RIVER
BLACKWATER 9780 9.0 13.7 66 8.1 12.0 68
EVENING STAR 9200 10.6 16.1 66 11.7 14.6 80
KIRWIN 9550 4.4 6.7 66 4.8 6.5 74
MARQUETTE 8760 2.1 5.3 40 3.9 5.6 70
SYLVAN LAKE 8420 9.1 12.2 75 10.6 12.3 86
SYLVAN ROAD 7120 5.2 7.3 71 7.7 11.2 69
YOUNTS PEAK 8350 6.2 9.4 66 6.6 9.3 71
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Basin wide percent of average 66 75
POWDER-TONGUE
BEAR TRAP MEADOW 8200 2.5 2.9 86 4.7 4.9 96
BIG GOOSE 7990 -M 5.0 * -M 4.9 *
BONE SPRINGS DIV 9350 8.4 9.0 93 7.9 8.1 98
BURGESS JUNCTION 7880 3.9 6.2 63 4.7 6.7 70
CLOUD PEAK RESERVOIR 9860 7.8 6.6 118 6.3 7.0 90
DOME LAKE 8880 5.7 6.8 84 6.6 7.5 88
GRAVE SPRINGS 8550 3.9 4.7 83 5.5 5.4 102
HANSEN SAWMILL 8360 3.2 3.6 89 4.2 4.7 89
MIDDLE POWDER 7760 4.1 6.1 67 5.1 7.3 70
POWDER RIVER PASS 9480 7.1 6.0 118 7.9 6.8 116
SUCKER CREEK 8880 5.8 6.0 97 6.8 7.4 92
TIE CREEK 6870 .9 3.3 27 4.3 5.7 75
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Basin wide percent of average 87 90
BELLE FOURCHE
BLIND PARK 6890 3.0 4.3 70 5.0 6.8 74
COLE CANYON 5910 1.4 3.4 41 4.1 -M *
NORTH RAPID CREEK 6130 2.2 3.8 58 3.9 5.7 68
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Basin wide percent of average 57 71
UPPER N. PLATTE RIVER
COLUMBINE 9160 12.5 12.2 102 13.6 13.3 102
DIVIDE PEAK 8860 14.1 10.7 132 16.4 11.3 145
ELK RIVER 8700 13.0 9.0 144 13.8 10.2 135
JOE WRIGHT 10120 12.2 11.2 109 12.3 13.4 92
NORTH FRENCH CREEK 10130 14.7 15.3 96 14.1 13.6 104
OLD BATTLE 9920 23.3 16.5 141 25.0 18.3 137
SAGE CREEK BASIN 7850 10.2 6.2 165 12.4 6.5 191
SOUTH BRUSH CREEK 8440 5.8 5.9 98 7.5 8.9 84
TOWER 10500 23.3 23.9 97 23.0 20.6 112
WEBBER SPRINGS 9250 16.7 13.1 127 18.9 14.8 128
WILLOW CREEK PASS 9540 9.6 6.2 155 9.5 7.1 134
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Basin wide percent of average 119 121
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 11.2 12.5 90 10.6 11.6 91
CASPER MTN. 7850 6.2 7.7 81 7.5 7.8 96
DEADMAN HILL 10220 10.4 8.7 120 8.1 8.9 91
DEER PARK 9700 16.7 8.6 194 18.4 12.2 151
LAPRELE CREEK 8375 -M 6.1 * 7.5 6.9 109
RENO HILL 8500 5.0 7.3 68 5.8 7.9 73
ROACH 9700 9.4 8.6 109 11.7 9.6 122
SAND LAKE 10050 13.5 16.7 81 12.2 13.1 93
SOUTH PASS 9040 14.2 9.4 151 14.9 10.3 145
WINDY PEAK 7900 -M 3.8 * -M 6.0 *
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Basin wide percent of average 109 110
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 7.6 5.4 141 10.2 8.1 126
DIVIDE PEAK 8860 14.1 10.7 132 16.4 11.3 145
OLD BATTLE 9920 23.3 16.5 141 25.0 18.3 137
SANDSTONE RS 8150 7.6 6.9 110 13.1 10.2 128
WHISKEY PARK 8950 16.0 13.7 117 17.2 15.4 112
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Basin wide percent of average 129 129
UPPER GREEN RIVER
BIG SANDY OPENING 9080 11.3 7.8 145 11.1 7.5 148
BLIND BULL SUM 8900 11.8 15.2 78 10.7 12.6 85
EAST RIM DIVIDE 7930 5.2 6.8 76 6.3 6.6 95
ELKHART PARK G.S. 9400 7.3 7.2 101 8.6 7.5 115
GROS VENTRE SUMMIT 8750 7.8 7.9 99 7.6 7.2 106
KENDALL R.S. 7740 7.3 7.9 92 8.1 7.9 103
LOOMIS PARK 8240 8.5 9.2 92 9.3 9.5 98
NEW FORK LAKE 8340 6.4 6.2 103 6.0 6.6 91
SNIDER BASIN 8060 9.6 7.9 122 10.3 9.0 114
SPRING CREEK DIVIDE 9000 15.2 14.2 107 15.0 14.9 101
TRIPLE PEAK 8500 11.3 13.6 83 12.5 13.0 96
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Basin wide percent of average 98 103
LOWER GREEN RIVER
HAMS FORK 7840 8.1 6.5 125 9.3 6.7 139
HEWINTA 9500 5.4 5.0 108 7.6 7.8 97
HICKERSON PARK 9100 5.7 3.5 163 8.1 4.6 176
HOLE-IN-ROCK 9150 5.0 3.2 156 7.3 4.2 174
INDIAN CREEK 9425 18.0 14.4 125 16.3 13.8 118
KELLEY R.S. 8180 11.4 8.7 131 13.1 11.4 115
STEEL CREEK PARK 10100 9.9 7.6 130 10.4 8.5 122
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Basin wide percent of average 130 126
UPPER BEAR RIVER
BUG LAKE 7950 14.0 10.0 140 14.4 10.5 137
HAYDEN FORK 9100 12.8 7.6 168 17.4 11.3 154
KELLEY R.S. 8180 11.4 8.7 131 13.1 11.4 115
LILY LAKE 9050 9.6 6.4 150 12.4 9.6 129
MONTE CRISTO 8960 21.0 13.5 156 18.7 13.7 136
SALT RIVER SUMMIT 7600 8.2 6.7 122 10.9 10.3 106
TRIAL LAKE 9960 20.7 12.3 168 20.2 12.8 158
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Basin wide percent of average 150 135
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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.