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: FEBRUARY 11 , 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 14.2 13.9 102 20.8 16.1 129
COTTONWOOD CREEK 7670 17.7 15.5 114 19.9 20.1 99
GRAND TARGHEE 9260 36.2 -M * 25.0 -M *
GRANITE CREEK 6770 13.3 13.7 97 18.8 15.0 125
GRASSY LAKE 7265 23.5 25.3 93 31.2 27.1 115
GROS VENTRE SUMMIT 8750 10.5 10.1 104 11.4 9.3 123
GUNSIGHT PASS 9820 9.9 -M * 11.2 -M *
LEWIS LAKE DIVIDE 7850 24.6 25.5 96 29.2 27.1 108
PHILLIPS BENCH 8200 23.4 20.4 115 26.7 21.3 125
SALT RIVER SUMMIT 7760 10.2 10.4 98 12.3 13.7 90
SNAKE RIVER STATION 6920 12.9 14.0 92 21.0 16.9 124
SPRING CREEK DIVIDE 9000 17.0 19.0 89 17.5 19.7 89
THUMB DIVIDE 7980 12.5 13.0 96 15.2 13.8 110
TOGWOTEE PASS 9580 20.6 18.3 113 22.4 18.1 124
TWO OCEAN PLATEAU 9240 27.5 20.5 134 22.1 20.1 110
WILLOW CREEK 8380 22.7 22.0 103 28.2 23.5 120
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Basin wide percent of average 104 113
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 19.4 17.5 111 18.2 15.0 121
BLACK BEAR 8170 35.5 27.8 128 32.6 28.5 114
CANYON 7870 13.0 9.7 134 16.3 11.5 142
FISHER CREEK 9100 32.7 25.6 128 -M 26.6 *
MADISON PLATEAU 7750 22.8 17.6 130 25.6 19.1 134
NORTHEAST ENTRANCE 7350 6.9 8.4 82 10.3 9.6 107
PARKER PEAK 9400 19.1 15.8 121 -M 12.0 *
SYLVAN LAKE 8420 15.6 16.1 97 19.6 15.9 123
THUMB DIVIDE 7980 12.5 13.0 96 15.2 13.8 110
TWO OCEAN PLATEAU 9240 27.5 20.5 134 22.1 20.1 110
WHISKEY CREEK 6800 14.5 12.1 120 19.9 14.9 134
WHITE MILL 8700 20.3 17.3 117 -M 19.8 *
WOLVERINE 7650 7.8 9.3 84 10.2 9.9 103
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Basin wide percent of average 118 120
WIND RIVER
BURROUGHS CREEK 8750 12.3 10.8 114 15.1 12.1 125
COLD SPRINGS 9630 4.9 6.3 78 7.8 7.5 104
DEER PARK 9700 10.1 13.1 77 14.5 15.8 92
HOBBS PARK 10100 9.0 10.3 87 9.8 8.8 111
LITTLE WARM 9370 7.4 8.3 89 10.6 9.7 109
SOUTH PASS 9040 9.3 12.0 78 11.9 13.3 89
ST. LAWRENCE ALT 8620 4.2 5.1 82 5.9 6.2 95
TOGWOTEE PASS 9580 20.6 18.3 113 22.4 18.1 124
TOWNSEND CREEK 8700 5.1 6.0 85 7.9 7.8 101
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Basin wide percent of average 92 107
BIGHORN BASIN
BALD MTN. 9380 11.2 14.2 79 11.5 12.6 91
BEAR TRAP MEADOW 8200 5.9 3.8 155 6.5 5.8 112
BLACKWATER 9780 19.0 17.6 108 17.8 15.2 117
BONE SPRINGS DIV 9350 11.4 11.3 101 13.2 10.3 128
EVENING STAR 9200 22.5 21.5 105 23.4 19.0 123
GRAVE SPRINGS 8550 5.8 6.3 92 6.9 6.8 101
KIRWIN 9550 9.3 8.1 115 11.2 8.1 138
MARQUETTE 8760 2.8 6.2 45 6.7 6.6 102
MIDDLE POWDER 7760 6.5 7.9 82 6.0 8.7 69
OWL CREEK 8975 3.8 3.6 106 5.1 3.9 131
POWDER RIVER PASS 9480 8.5 7.7 110 10.4 8.9 117
SHELL CREEK 9580 11.6 10.5 110 11.5 9.9 116
SYLVAN LAKE 8420 15.6 16.1 97 19.6 15.9 123
SYLVAN ROAD 7120 8.4 9.6 88 16.9 14.2 119
TIMBER CREEK 7950 2.2 3.9 56 5.5 4.8 115
YOUNTS PEAK 8350 13.4 12.8 105 -M 12.1 *
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Basin wide percent of average 98 114
SHOSHONE RIVER
BLACKWATER 9780 19.0 17.6 108 17.8 15.2 117
EVENING STAR 9200 22.5 21.5 105 23.4 19.0 123
KIRWIN 9550 9.3 8.1 115 11.2 8.1 138
MARQUETTE 8760 2.8 6.2 45 6.7 6.6 102
SYLVAN LAKE 8420 15.6 16.1 97 19.6 15.9 123
SYLVAN ROAD 7120 8.4 9.6 88 16.9 14.2 119
YOUNTS PEAK 8350 13.4 12.8 105 -M 12.1 *
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Basin wide percent of average 99 121
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.9 3.8 155 6.5 5.8 112
BIG GOOSE 7990 5.5 6.5 85 8.5 6.1 139
BONE SPRINGS DIV 9350 11.4 11.3 101 13.2 10.3 128
BURGESS JUNCTION 7880 7.5 7.9 95 9.2 8.4 110
CLOUD PEAK RESERVOIR 9860 10.2 8.6 119 10.7 8.7 123
DOME LAKE 8880 7.2 8.6 84 10.4 9.2 113
GRAVE SPRINGS 8550 5.8 6.3 92 6.9 6.8 101
HANSEN SAWMILL 8360 4.6 4.5 102 6.9 5.6 123
MIDDLE POWDER 7760 6.5 7.9 82 6.0 8.7 69
POWDER RIVER PASS 9480 8.5 7.7 110 10.4 8.9 117
SUCKER CREEK 8880 8.8 7.8 113 10.8 9.4 115
TIE CREEK 6870 4.1 4.3 95 8.0 7.1 113
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Basin wide percent of average 101 113
BELLE FOURCHE
BLIND PARK 6890 4.4 5.7 77 6.9 8.3 83
COLE CANYON 5910 4.0 4.9 82 5.1 5.0 102
NORTH RAPID CREEK 6130 5.4 5.6 96 5.5 6.7 82
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Basin wide percent of average 85 88
UPPER N. PLATTE RIVER
COLUMBINE 9160 19.2 18.5 104 21.3 18.0 118
DIVIDE PEAK 8880 17.7 13.8 128 18.0 14.8 122
ELK RIVER 8700 18.3 13.7 134 18.2 13.8 132
JOE WRIGHT 10120 16.8 15.1 111 20.0 17.5 114
NORTH FRENCH CREEK 10130 22.0 19.8 111 21.8 17.6 124
OLD BATTLE 10000 24.7 22.1 112 29.5 24.4 121
SAGE CREEK BASIN 7850 13.6 8.0 170 15.1 8.6 176
SOUTH BRUSH CREEK 8440 8.7 8.2 106 12.5 11.7 107
TOWER 10500 32.3 32.8 98 30.2 27.6 109
WEBBER SPRINGS 9250 19.1 17.7 108 22.4 19.4 115
WILLOW CREEK PASS 9540 11.8 8.2 144 12.0 9.0 133
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Basin wide percent of average 115 121
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 15.4 16.6 93 16.0 15.3 105
CASPER MTN. 7900 7.6 9.8 78 9.9 9.6 103
DEADMAN HILL 10220 12.2 11.4 107 12.5 11.5 109
DEER PARK 9700 10.1 13.1 77 14.5 15.8 92
LAPRELE CREEK 8375 -M 7.8 * -M 8.7 *
RENO HILL 8400 7.8 9.0 87 9.8 10.0 98
ROACH 9700 14.1 12.1 117 16.6 12.6 132
SAND LAKE 10050 19.6 21.6 91 19.7 17.0 116
SOUTH PASS 9040 9.3 12.0 78 11.9 13.3 89
WINDY PEAK 7900 5.1 5.1 100 6.8 7.4 92
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Basin wide percent of average 91 105
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 12.2 8.5 144 13.5 10.7 126
DIVIDE PEAK 8880 17.7 13.8 128 18.0 14.8 122
OLD BATTLE 10000 24.7 22.1 112 29.5 24.4 121
SANDSTONE RS 8150 13.8 10.7 129 17.1 13.6 126
WHISKEY PARK 8950 23.6 20.4 116 26.7 20.8 128
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Basin wide percent of average 122 124
UPPER GREEN RIVER
BIG SANDY OPENING 9080 10.0 10.4 96 10.3 9.8 105
BLIND BULL SUM 8650 18.3 20.0 92 14.4 16.6 87
EAST RIM DIVIDE 7930 6.9 9.4 73 9.1 8.8 103
ELKHART PARK G.S. 9400 8.9 9.6 93 9.8 9.5 103
GROS VENTRE SUMMIT 8750 10.5 10.1 104 11.4 9.3 123
GUNSIGHT PASS 9820 9.9 -M * 11.2 -M *
KENDALL R.S. 7740 9.2 10.7 86 10.9 10.7 102
LOOMIS PARK 8240 12.2 12.3 99 13.8 12.8 108
NEW FORK LAKE 8340 7.5 8.3 90 7.9 8.4 94
SNIDER BASIN 8060 9.6 10.7 90 10.8 12.0 90
SPRING CREEK DIVIDE 9000 17.0 19.0 89 17.5 19.7 89
TRIPLE PEAK 8500 17.3 18.1 96 20.5 17.6 116
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Basin wide percent of average 92 101
LOWER GREEN RIVER
HAMS FORK 7840 8.9 9.2 97 7.8 9.1 86
HEWINTA 9519 8.3 7.5 111 13.0 10.0 130
HICKERSON PARK 9145 4.3 4.9 88 7.0 5.5 127
HOLE-IN-ROCK 9150 3.8 4.7 81 7.0 5.1 137
INDIAN CREEK 9425 17.1 19.1 90 13.4 18.2 74
KELLEY R.S. 8180 -M 11.8 * -M 15.0 *
STEEL CREEK PARK 10200 10.3 10.5 98 14.0 11.1 126
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Basin wide percent of average 94 105
UPPER BEAR RIVER
BUG LAKE 7950 13.0 14.6 89 12.9 14.0 92
HAYDEN FORK 9212 14.0 10.9 128 18.0 14.7 122
KELLEY R.S. 8180 -M 11.8 * -M 15.0 *
LILY LAKE 9156 10.8 9.1 119 13.7 12.4 110
MONTE CRISTO 8960 21.0 20.5 102 20.7 18.2 114
SALT RIVER SUMMIT 7760 10.2 10.4 98 12.3 13.7 90
TRIAL LAKE 9992 15.4 17.4 89 18.7 17.3 108
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Basin wide percent of average 102 107
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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.