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 FRIDAY: FEBRUARY 1 , 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 12.4 12.7 98 18.9 14.9 127
COTTONWOOD CREEK 7670 14.2 14.2 100 16.8 18.7 90
GRAND TARGHEE 9260 32.7 -M * 22.7 -M *
GRANITE CREEK 6770 11.0 12.4 89 16.6 13.7 121
GRASSY LAKE 7265 19.8 23.0 86 27.7 25.0 111
GROS VENTRE SUMMIT 8750 9.2 9.5 97 10.5 8.7 121
GUNSIGHT PASS 9820 6.2 -M * 10.1 -M *
LEWIS LAKE DIVIDE 7850 21.2 23.1 92 26.6 24.9 107
PHILLIPS BENCH 8200 19.7 18.5 106 22.7 19.5 116
SALT RIVER SUMMIT 7760 7.5 9.2 82 9.7 12.6 77
SNAKE RIVER STATION 6920 11.0 12.6 87 18.9 15.6 121
SPRING CREEK DIVIDE 9000 13.7 17.4 79 14.2 18.3 78
THUMB DIVIDE 7980 11.2 11.8 95 14.1 12.7 111
TOGWOTEE PASS 9580 18.4 16.9 109 20.2 16.8 120
TWO OCEAN PLATEAU 9240 25.3 19.0 133 21.3 18.5 115
WILLOW CREEK 8380 18.1 20.2 90 23.5 21.8 108
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Basin wide percent of average 96 108
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 17.2 16.2 106 16.3 14.0 116
BLACK BEAR 8170 32.4 25.6 127 30.7 26.1 118
CANYON 7870 11.7 8.9 131 14.8 10.8 137
FISHER CREEK 9100 29.0 23.8 122 26.6 24.6 108
MADISON PLATEAU 7750 20.5 16.2 127 23.6 17.5 135
NORTHEAST ENTRANCE 7350 5.6 7.7 73 9.3 8.9 104
PARKER PEAK 9400 17.2 14.8 116 -M 11.1 *
SYLVAN LAKE 8420 14.3 15.2 94 18.6 14.8 126
THUMB DIVIDE 7980 11.2 11.8 95 14.1 12.7 111
TWO OCEAN PLATEAU 9240 25.3 19.0 133 21.3 18.5 115
WHISKEY CREEK 6800 12.9 11.1 116 18.2 13.8 132
WHITE MILL 8700 17.8 16.1 111 -M 18.3 *
WOLVERINE 7650 5.9 8.6 69 9.0 9.2 98
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Basin wide percent of average 113 118
WIND RIVER
BURROUGHS CREEK 8750 10.9 10.1 108 13.6 11.3 120
COLD SPRINGS 9630 4.0 6.0 67 6.9 7.1 97
DEER PARK 9700 9.3 11.7 79 13.1 14.5 90
HOBBS PARK 10100 8.4 9.8 86 9.1 8.2 111
LITTLE WARM 9370 6.6 7.8 85 9.6 9.1 105
SOUTH PASS 9040 8.2 11.4 72 11.1 12.2 91
ST. LAWRENCE ALT 8620 3.7 4.8 77 5.6 5.7 98
TOGWOTEE PASS 9580 18.4 16.9 109 20.2 16.8 120
TOWNSEND CREEK 8700 4.6 5.6 82 7.7 7.3 105
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Basin wide percent of average 88 105
BIGHORN BASIN
BALD MTN. 9380 10.6 13.5 79 10.8 11.8 92
BEAR TRAP MEADOW 8200 5.5 3.5 157 6.4 5.5 116
BLACKWATER 9780 16.7 16.6 101 15.8 14.2 111
BONE SPRINGS DIV 9350 10.2 10.6 96 12.5 9.6 130
EVENING STAR 9200 19.4 19.7 98 21.3 17.6 121
GRAVE SPRINGS 8550 5.5 5.7 96 5.9 6.4 92
KIRWIN 9550 8.6 7.7 112 10.0 7.6 132
MARQUETTE 8760 2.1 5.9 36 6.5 6.2 105
MIDDLE POWDER 7760 6.3 7.2 88 5.9 8.3 71
OWL CREEK 8975 3.5 3.4 103 5.0 3.7 135
POWDER RIVER PASS 9480 7.7 7.2 107 9.6 8.3 116
SHELL CREEK 9580 10.6 9.9 107 10.7 9.3 115
SYLVAN LAKE 8420 14.3 15.2 94 18.6 14.8 126
SYLVAN ROAD 7120 7.3 8.8 83 15.7 13.3 118
TIMBER CREEK 7950 2.0 3.6 56 5.5 4.5 122
YOUNTS PEAK 8350 11.5 12.0 96 12.9 11.4 113
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Basin wide percent of average 94 114
SHOSHONE RIVER
BLACKWATER 9780 16.7 16.6 101 15.8 14.2 111
EVENING STAR 9200 19.4 19.7 98 21.3 17.6 121
KIRWIN 9550 8.6 7.7 112 10.0 7.6 132
MARQUETTE 8760 2.1 5.9 36 6.5 6.2 105
SYLVAN LAKE 8420 14.3 15.2 94 18.6 14.8 126
SYLVAN ROAD 7120 7.3 8.8 83 15.7 13.3 118
YOUNTS PEAK 8350 11.5 12.0 96 12.9 11.4 113
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Basin wide percent of average 93 118
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.5 3.5 157 6.4 5.5 116
BIG GOOSE 7990 5.3 6.0 88 8.3 5.7 146
BONE SPRINGS DIV 9350 10.2 10.6 96 12.5 9.6 130
BURGESS JUNCTION 7880 7.2 7.4 97 9.1 7.9 115
CLOUD PEAK RESERVOIR 9860 9.4 8.1 116 10.6 8.2 129
DOME LAKE 8880 6.7 7.9 85 10.0 8.7 115
GRAVE SPRINGS 8550 5.5 5.7 96 5.9 6.4 92
HANSEN SAWMILL 8360 4.2 4.2 100 6.4 5.3 121
MIDDLE POWDER 7760 6.3 7.2 88 5.9 8.3 71
POWDER RIVER PASS 9480 7.7 7.2 107 9.6 8.3 116
SUCKER CREEK 8880 8.4 7.2 117 10.2 8.8 116
TIE CREEK 6870 4.0 4.0 100 7.9 6.8 116
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Basin wide percent of average 102 115
BELLE FOURCHE
BLIND PARK 6890 3.8 5.2 73 6.5 7.8 83
COLE CANYON 5910 3.3 4.5 73 4.6 4.7 98
NORTH RAPID CREEK 6130 4.6 5.0 92 4.8 6.3 76
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Basin wide percent of average 80 85
UPPER N. PLATTE RIVER
COLUMBINE 9160 15.9 16.5 96 18.2 16.7 109
DIVIDE PEAK 8880 15.5 13.0 119 15.7 13.7 115
ELK RIVER 8700 14.8 12.2 121 15.5 12.7 122
JOE WRIGHT 10120 14.7 13.9 106 17.8 16.2 110
NORTH FRENCH CREEK 10130 20.4 18.4 111 20.3 16.4 124
OLD BATTLE 10000 21.2 20.0 106 25.4 22.4 113
SAGE CREEK BASIN 7850 11.8 7.5 157 13.2 7.9 167
SOUTH BRUSH CREEK 8440 8.5 7.4 115 11.9 10.9 109
TOWER 10500 26.5 30.1 88 26.7 25.4 105
WEBBER SPRINGS 9250 16.4 16.1 102 19.5 18.0 108
WILLOW CREEK PASS 9540 10.7 7.5 143 10.8 8.3 130
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Basin wide percent of average 108 116
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 13.2 15.3 86 14.1 14.3 99
CASPER MTN. 7900 6.7 9.0 74 9.2 8.9 103
DEADMAN HILL 10220 10.8 10.6 102 11.0 10.6 104
DEER PARK 9700 9.3 11.7 79 13.1 14.5 90
LAPRELE CREEK 8375 -M 7.3 * -M 8.1 *
RENO HILL 8400 7.3 8.4 87 9.1 9.3 98
ROACH 9700 12.8 11.0 116 15.2 11.7 130
SAND LAKE 10050 17.7 19.9 89 17.9 15.9 113
SOUTH PASS 9040 8.2 11.4 72 11.1 12.2 91
WINDY PEAK 7900 4.8 4.5 107 6.4 7.0 91
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Basin wide percent of average 89 103
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 10.8 7.8 138 12.1 9.9 122
DIVIDE PEAK 8880 15.5 13.0 119 15.7 13.7 115
OLD BATTLE 10000 21.2 20.0 106 25.4 22.4 113
SANDSTONE RS 8150 11.8 9.7 122 14.8 12.5 118
WHISKEY PARK 8950 19.2 18.5 104 22.4 19.4 115
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Basin wide percent of average 114 116
UPPER GREEN RIVER
BIG SANDY OPENING 9080 8.4 9.5 88 8.8 9.0 98
BLIND BULL SUM 8650 15.0 18.4 82 12.6 15.4 82
EAST RIM DIVIDE 7930 5.0 8.5 59 7.4 8.1 91
ELKHART PARK G.S. 9400 7.0 8.8 80 8.0 8.9 90
GROS VENTRE SUMMIT 8750 9.2 9.5 97 10.5 8.7 121
GUNSIGHT PASS 9820 6.2 -M * 10.1 -M *
KENDALL R.S. 7740 7.3 9.8 74 9.2 9.7 95
LOOMIS PARK 8240 10.0 11.2 89 11.5 11.8 97
NEW FORK LAKE 8340 5.7 7.7 74 6.2 7.9 78
SNIDER BASIN 8060 7.4 9.8 76 8.6 11.1 77
SPRING CREEK DIVIDE 9000 13.7 17.4 79 14.2 18.3 78
TRIPLE PEAK 8500 14.1 16.6 85 17.2 16.2 106
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Basin wide percent of average 81 91
LOWER GREEN RIVER
HAMS FORK 7840 6.7 8.4 80 6.4 8.4 76
HEWINTA 9519 6.6 6.7 99 11.3 9.3 122
HICKERSON PARK 9145 3.6 4.4 82 6.3 5.2 121
HOLE-IN-ROCK 9150 3.0 4.1 73 6.3 4.8 131
INDIAN CREEK 9425 14.0 17.6 80 13.0 16.8 77
KELLEY R.S. 8180 8.5 10.7 79 11.1 13.9 80
STEEL CREEK PARK 10200 8.8 9.4 94 12.4 10.1 123
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Basin wide percent of average 84 98
UPPER BEAR RIVER
BUG LAKE 7950 10.6 13.2 80 11.0 12.9 85
HAYDEN FORK 9212 11.9 9.8 121 15.3 13.6 112
KELLEY R.S. 8180 8.5 10.7 79 11.1 13.9 80
LILY LAKE 9156 9.1 8.2 111 12.0 11.5 104
MONTE CRISTO 8960 17.6 18.2 97 17.7 16.7 106
SALT RIVER SUMMIT 7760 7.5 9.2 82 9.7 12.6 77
TRIAL LAKE 9992 13.1 15.7 83 15.8 15.8 100
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Basin wide percent of average 92 95
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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.