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 MONDAY: JANUARY 28 , 2008
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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 11.3 12.2 93 17.7 14.4 123
COTTONWOOD CREEK 7670 12.4 13.7 91 15.1 18.2 83
GRAND TARGHEE 9260 30.8 -M * 21.9 -M *
GRANITE CREEK 6770 9.8 11.8 83 15.4 13.3 116
GRASSY LAKE 7265 18.1 22.0 82 26.1 24.2 108
GROS VENTRE SUMMIT 8750 8.6 9.2 93 9.8 8.4 117
GUNSIGHT PASS 9820 5.8 -M * 9.6 -M *
LEWIS LAKE DIVIDE 7850 19.4 22.1 88 25.3 24.0 105
PHILLIPS BENCH 8200 17.6 17.8 99 21.3 18.9 113
SALT RIVER SUMMIT 7760 6.5 8.8 74 8.7 12.2 71
SNAKE RIVER STATION 6920 9.9 12.0 82 17.7 15.0 118
SPRING CREEK DIVIDE 9000 12.5 16.7 75 13.2 17.8 74
THUMB DIVIDE 7980 9.9 11.2 88 13.3 12.3 108
TOGWOTEE PASS 9580 17.4 16.3 107 19.3 16.3 118
TWO OCEAN PLATEAU 9240 23.4 18.3 128 19.9 17.9 111
WILLOW CREEK 8380 16.1 19.5 83 21.9 21.1 104
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Basin wide percent of average 91 105
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 16.1 15.8 102 15.3 13.5 113
BLACK BEAR 8170 29.4 24.8 119 28.7 25.1 114
CANYON 7870 10.6 8.6 123 13.8 10.5 131
FISHER CREEK 9100 26.9 23.0 117 -M 23.8 *
MADISON PLATEAU 7750 18.4 15.7 117 21.9 16.9 130
NORTHEAST ENTRANCE 7350 5.0 7.4 68 9.0 8.6 105
PARKER PEAK 9400 16.1 14.3 113 -M 10.7 *
SYLVAN LAKE 8420 13.4 14.5 92 17.8 14.3 124
THUMB DIVIDE 7980 9.9 11.2 88 13.3 12.3 108
TWO OCEAN PLATEAU 9240 23.4 18.3 128 19.9 17.9 111
WHISKEY CREEK 6800 11.7 10.8 108 17.3 13.4 129
WHITE MILL 8700 16.7 15.6 107 -M 17.6 *
WOLVERINE 7650 5.4 8.4 64 8.9 8.9 100
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Basin wide percent of average 108 117
WIND RIVER
BURROUGHS CREEK 8750 10.1 9.8 103 12.8 10.9 117
COLD SPRINGS 9630 3.7 5.9 63 6.5 6.9 94
DEER PARK 9700 8.9 11.6 77 12.6 14.1 89
HOBBS PARK 10100 7.7 9.6 80 8.7 8.0 109
LITTLE WARM 9370 6.0 7.6 79 8.9 8.9 100
SOUTH PASS 9040 7.9 11.0 72 10.5 11.8 89
ST. LAWRENCE ALT 8620 3.5 4.7 74 5.3 5.5 96
TOGWOTEE PASS 9580 17.4 16.3 107 19.3 16.3 118
TOWNSEND CREEK 8700 4.4 5.5 80 7.3 7.1 103
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Basin wide percent of average 85 103
BIGHORN BASIN
BALD MTN. 9380 10.2 13.0 78 10.6 11.4 93
BEAR TRAP MEADOW 8200 5.5 3.4 162 6.4 5.4 119
BLACKWATER 9780 15.1 16.1 94 14.6 13.8 106
BONE SPRINGS DIV 9350 9.6 10.3 93 12.3 9.3 132
EVENING STAR 9200 18.1 19.2 94 20.8 17.1 122
GRAVE SPRINGS 8550 5.3 5.5 96 5.9 6.3 94
KIRWIN 9550 8.2 7.5 109 9.5 7.4 128
MARQUETTE 8760 2.2 5.8 38 6.5 6.1 107
MIDDLE POWDER 7760 6.1 6.9 88 5.8 8.1 72
OWL CREEK 8975 3.5 3.3 106 4.9 3.6 136
POWDER RIVER PASS 9480 7.3 7.0 104 9.3 8.0 116
SHELL CREEK 9580 10.1 9.6 105 10.4 9.0 116
SYLVAN LAKE 8420 13.4 14.5 92 17.8 14.3 124
SYLVAN ROAD 7120 6.6 8.5 78 14.9 12.9 116
TIMBER CREEK 7950 2.1 3.5 60 5.4 4.4 123
YOUNTS PEAK 8350 10.8 11.6 93 12.3 11.1 111
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Basin wide percent of average 92 113
SHOSHONE RIVER
BLACKWATER 9780 15.1 16.1 94 14.6 13.8 106
EVENING STAR 9200 18.1 19.2 94 20.8 17.1 122
KIRWIN 9550 8.2 7.5 109 9.5 7.4 128
MARQUETTE 8760 2.2 5.8 38 6.5 6.1 107
SYLVAN LAKE 8420 13.4 14.5 92 17.8 14.3 124
SYLVAN ROAD 7120 6.6 8.5 78 14.9 12.9 116
YOUNTS PEAK 8350 10.8 11.6 93 12.3 11.1 111
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Basin wide percent of average 89 117
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.5 3.4 162 6.4 5.4 119
BIG GOOSE 7990 5.3 5.8 91 8.3 5.4 154
BONE SPRINGS DIV 9350 9.6 10.3 93 12.3 9.3 132
BURGESS JUNCTION 7880 7.1 7.1 100 9.0 7.7 117
CLOUD PEAK RESERVOIR 9860 8.8 7.8 113 10.1 8.0 126
DOME LAKE 8880 6.5 7.7 84 9.7 8.5 114
GRAVE SPRINGS 8550 5.3 5.5 96 5.9 6.3 94
HANSEN SAWMILL 8360 4.0 4.1 98 6.2 5.2 119
MIDDLE POWDER 7760 6.1 6.9 88 5.8 8.1 72
POWDER RIVER PASS 9480 7.3 7.0 104 9.3 8.0 116
SUCKER CREEK 8880 8.0 6.9 116 10.1 8.5 119
TIE CREEK 6870 4.0 3.9 103 7.8 6.6 118
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Basin wide percent of average 101 116
BELLE FOURCHE
BLIND PARK 6890 3.9 5.1 76 6.3 7.6 83
COLE CANYON 5910 3.4 4.4 77 4.6 4.6 100
NORTH RAPID CREEK 6130 4.9 4.8 102 5.0 6.2 81
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Basin wide percent of average 85 86
UPPER N. PLATTE RIVER
COLUMBINE 9160 14.7 15.6 94 17.4 16.1 108
DIVIDE PEAK 8880 14.6 12.6 116 14.9 13.3 112
ELK RIVER 8700 13.5 11.6 116 14.6 12.3 119
JOE WRIGHT 10120 13.6 13.4 101 16.3 15.7 104
NORTH FRENCH CREEK 10130 19.4 17.8 109 19.6 15.9 123
OLD BATTLE 10000 20.1 19.3 104 24.4 21.7 112
SAGE CREEK BASIN 7850 10.7 7.3 147 12.0 7.7 156
SOUTH BRUSH CREEK 8440 7.9 7.1 111 11.6 10.5 110
TOWER 10500 25.0 28.9 87 25.1 24.5 102
WEBBER SPRINGS 9250 15.7 15.4 102 18.6 17.5 106
WILLOW CREEK PASS 9540 10.0 7.3 137 10.1 8.1 125
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Basin wide percent of average 106 113
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 12.6 14.8 85 13.4 13.8 97
CASPER MTN. 7900 7.0 8.8 80 9.3 8.7 107
DEADMAN HILL 10220 10.4 10.2 102 10.6 10.3 103
DEER PARK 9700 8.9 11.6 77 12.6 14.1 89
LAPRELE CREEK 8375 -M 7.0 * -M 7.9 *
RENO HILL 8400 7.3 8.2 89 9.4 9.1 103
ROACH 9700 12.3 10.5 117 14.7 11.3 130
SAND LAKE 10050 16.9 19.3 88 17.1 15.4 111
SOUTH PASS 9040 7.9 11.0 72 10.5 11.8 89
WINDY PEAK 7900 4.6 4.4 105 6.1 6.8 90
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Basin wide percent of average 89 102
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.7 7.4 131 11.3 9.6 118
DIVIDE PEAK 8880 14.6 12.6 116 14.9 13.3 112
OLD BATTLE 10000 20.1 19.3 104 24.4 21.7 112
SANDSTONE RS 8150 10.5 9.2 114 13.7 12.1 113
WHISKEY PARK 8950 17.7 17.7 100 21.4 18.8 114
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Basin wide percent of average 110 114
UPPER GREEN RIVER
BIG SANDY OPENING 9080 7.9 9.2 86 8.4 8.7 97
BLIND BULL SUM 8650 13.6 17.8 76 11.5 14.9 77
EAST RIM DIVIDE 7930 4.4 8.1 54 6.8 7.8 87
ELKHART PARK G.S. 9400 6.5 8.5 76 7.6 8.6 88
GROS VENTRE SUMMIT 8750 8.6 9.2 93 9.8 8.4 117
GUNSIGHT PASS 9820 5.8 -M * 9.6 -M *
KENDALL R.S. 7740 6.4 9.5 67 8.4 9.4 89
LOOMIS PARK 8240 8.8 10.8 81 10.4 11.4 91
NEW FORK LAKE 8340 5.2 7.4 70 6.0 7.6 79
SNIDER BASIN 8060 6.2 9.4 66 7.6 10.7 71
SPRING CREEK DIVIDE 9000 12.5 16.7 75 13.2 17.8 74
TRIPLE PEAK 8500 12.6 16.1 78 15.7 15.6 101
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Basin wide percent of average 76 87
LOWER GREEN RIVER
HAMS FORK 7840 5.6 8.0 70 5.9 8.1 73
HEWINTA 9519 5.4 6.3 86 10.2 9.0 113
HICKERSON PARK 9145 3.1 4.2 74 6.1 5.1 120
HOLE-IN-ROCK 9150 2.6 3.9 67 6.0 4.7 128
INDIAN CREEK 9425 12.2 17.0 72 11.6 16.3 71
KELLEY R.S. 8180 7.6 10.2 75 10.1 13.5 75
STEEL CREEK PARK 10200 7.9 9.0 88 11.5 9.8 117
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Basin wide percent of average 76 92
UPPER BEAR RIVER
BUG LAKE 7950 8.8 12.6 70 9.7 12.5 78
HAYDEN FORK 9212 9.9 9.3 106 13.3 13.2 101
KELLEY R.S. 8180 7.6 10.2 75 10.1 13.5 75
LILY LAKE 9156 -M 7.8 * -M 11.1 *
MONTE CRISTO 8960 15.2 17.3 88 15.8 16.2 98
SALT RIVER SUMMIT 7760 6.5 8.8 74 8.7 12.2 71
TRIAL LAKE 9992 10.9 15.0 73 13.8 15.3 90
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Basin wide percent of average 80 86
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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 1961-90.
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.