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 SATURDAY: FEBRUARY 2 , 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 12.7 12.8 99 19.2 15.0 128
COTTONWOOD CREEK 7670 14.4 14.4 100 17.0 18.8 90
GRAND TARGHEE 9260 32.9 -M * 22.9 -M *
GRANITE CREEK 6770 11.3 12.5 90 17.0 13.9 122
GRASSY LAKE 7265 20.3 23.2 88 28.2 25.3 111
GROS VENTRE SUMMIT 8750 9.2 9.5 97 10.5 8.7 121
GUNSIGHT PASS 9820 6.3 -M * 10.1 -M *
LEWIS LAKE DIVIDE 7850 21.7 23.3 93 26.9 25.1 107
PHILLIPS BENCH 8200 20.3 18.7 109 23.2 19.7 118
SALT RIVER SUMMIT 7760 7.6 9.4 81 9.8 12.7 77
SNAKE RIVER STATION 6920 11.1 12.8 87 19.1 15.7 122
SPRING CREEK DIVIDE 9000 14.0 17.5 80 14.5 18.5 78
THUMB DIVIDE 7980 11.4 11.9 96 14.3 12.8 112
TOGWOTEE PASS 9580 18.5 17.0 109 20.4 17.0 120
TWO OCEAN PLATEAU 9240 25.5 19.1 134 21.4 18.6 115
WILLOW CREEK 8380 18.6 20.4 91 24.0 22.0 109
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Basin wide percent of average 97 109
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 17.4 16.3 107 16.5 14.1 117
BLACK BEAR 8170 32.5 25.8 126 30.9 26.4 117
CANYON 7870 11.8 9.0 131 15.0 10.9 138
FISHER CREEK 9100 29.2 24.0 122 -M 24.8 *
MADISON PLATEAU 7750 20.6 16.3 126 23.8 17.6 135
NORTHEAST ENTRANCE 7350 5.6 7.8 72 9.4 9.0 104
PARKER PEAK 9400 17.3 14.9 116 -M 11.2 *
SYLVAN LAKE 8420 14.4 15.3 94 18.9 14.9 127
THUMB DIVIDE 7980 11.4 11.9 96 14.3 12.8 112
TWO OCEAN PLATEAU 9240 25.5 19.1 134 21.4 18.6 115
WHISKEY CREEK 6800 13.0 11.2 116 18.4 13.9 132
WHITE MILL 8700 18.1 16.2 112 -M 18.4 *
WOLVERINE 7650 6.1 8.7 70 9.1 9.3 98
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Basin wide percent of average 113 120
WIND RIVER
BURROUGHS CREEK 8750 11.0 10.2 108 13.8 11.4 121
COLD SPRINGS 9630 3.9 6.0 65 6.9 7.1 97
DEER PARK 9700 9.5 11.7 81 13.4 14.7 91
HOBBS PARK 10100 8.3 9.9 84 9.0 8.3 108
LITTLE WARM 9370 6.6 7.8 85 9.6 9.2 104
SOUTH PASS 9040 8.3 11.4 73 11.3 12.3 92
ST. LAWRENCE ALT 8620 3.5 4.8 73 5.5 5.7 96
TOGWOTEE PASS 9580 18.5 17.0 109 20.4 17.0 120
TOWNSEND CREEK 8700 4.5 5.6 80 7.8 7.3 107
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Basin wide percent of average 88 105
BIGHORN BASIN
BALD MTN. 9380 10.7 13.6 79 10.8 11.9 91
BEAR TRAP MEADOW 8200 5.5 3.6 153 6.3 5.5 115
BLACKWATER 9780 17.0 16.7 102 16.1 14.3 113
BONE SPRINGS DIV 9350 10.3 10.7 96 12.4 9.7 128
EVENING STAR 9200 19.5 19.9 98 22.0 17.7 124
GRAVE SPRINGS 8550 5.5 5.8 95 5.9 6.4 92
KIRWIN 9550 8.7 7.7 113 10.0 7.7 130
MARQUETTE 8760 2.1 5.9 36 6.2 6.2 100
MIDDLE POWDER 7760 6.2 7.2 86 5.9 8.3 71
OWL CREEK 8975 3.4 3.4 100 5.0 3.7 135
POWDER RIVER PASS 9480 7.7 7.3 105 9.6 8.4 114
SHELL CREEK 9580 10.6 10.0 106 10.7 9.4 114
SYLVAN LAKE 8420 14.4 15.3 94 18.9 14.9 127
SYLVAN ROAD 7120 7.5 8.9 84 15.8 13.4 118
TIMBER CREEK 7950 1.8 3.7 49 5.7 4.5 127
YOUNTS PEAK 8350 11.9 12.1 98 12.3 11.5 107
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Basin wide percent of average 94 113
SHOSHONE RIVER
BLACKWATER 9780 17.0 16.7 102 16.1 14.3 113
EVENING STAR 9200 19.5 19.9 98 22.0 17.7 124
KIRWIN 9550 8.7 7.7 113 10.0 7.7 130
MARQUETTE 8760 2.1 5.9 36 6.2 6.2 100
SYLVAN LAKE 8420 14.4 15.3 94 18.9 14.9 127
SYLVAN ROAD 7120 7.5 8.9 84 15.8 13.4 118
YOUNTS PEAK 8350 11.9 12.1 98 12.3 11.5 107
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Basin wide percent of average 94 118
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.5 3.6 153 6.3 5.5 115
BIG GOOSE 7990 5.2 6.1 85 8.1 5.7 142
BONE SPRINGS DIV 9350 10.3 10.7 96 12.4 9.7 128
BURGESS JUNCTION 7880 7.2 7.5 96 9.0 8.0 112
CLOUD PEAK RESERVOIR 9860 9.3 8.1 115 10.0 8.2 122
DOME LAKE 8880 6.6 8.0 82 10.0 8.8 114
GRAVE SPRINGS 8550 5.5 5.8 95 5.9 6.4 92
HANSEN SAWMILL 8360 4.2 4.2 100 6.3 5.3 119
MIDDLE POWDER 7760 6.2 7.2 86 5.9 8.3 71
POWDER RIVER PASS 9480 7.7 7.3 105 9.6 8.4 114
SUCKER CREEK 8880 8.4 7.3 115 10.1 8.9 113
TIE CREEK 6870 3.9 4.0 98 7.8 6.8 115
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Basin wide percent of average 100 113
BELLE FOURCHE
BLIND PARK 6890 3.7 5.3 70 6.4 7.8 82
COLE CANYON 5910 3.2 4.6 70 4.6 4.7 98
NORTH RAPID CREEK 6130 -M 5.1 * 4.7 6.3 75
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Basin wide percent of average 70 84
UPPER N. PLATTE RIVER
COLUMBINE 9160 16.4 16.7 98 19.0 16.8 113
DIVIDE PEAK 8880 15.8 13.1 121 16.3 13.8 118
ELK RIVER 8700 15.4 12.4 124 15.9 12.8 124
JOE WRIGHT 10120 15.3 14.0 109 17.8 16.3 109
NORTH FRENCH CREEK 10130 20.8 18.5 112 20.7 16.5 125
OLD BATTLE 10000 22.0 20.2 109 26.2 22.6 116
SAGE CREEK BASIN 7850 12.2 7.6 161 13.7 8.0 171
SOUTH BRUSH CREEK 8440 8.5 7.5 113 12.0 10.9 110
TOWER 10500 27.6 30.3 91 27.9 25.6 109
WEBBER SPRINGS 9250 16.9 16.2 104 20.1 18.2 110
WILLOW CREEK PASS 9540 10.8 7.6 142 11.1 8.4 132
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Basin wide percent of average 111 118
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 13.7 15.5 88 14.7 14.4 102
CASPER MTN. 7900 6.7 9.1 74 9.2 9.0 102
DEADMAN HILL 10220 11.0 10.7 103 11.4 10.7 107
DEER PARK 9700 9.5 11.7 81 13.4 14.7 91
LAPRELE CREEK 8375 -M 7.3 * -M 8.2 *
RENO HILL 8400 7.2 8.5 85 9.0 9.4 96
ROACH 9700 13.1 11.1 118 15.4 11.7 132
SAND LAKE 10050 18.2 20.1 91 18.3 16.0 114
SOUTH PASS 9040 8.3 11.4 73 11.3 12.3 92
WINDY PEAK 7900 4.7 4.6 102 6.4 7.0 91
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Basin wide percent of average 90 104
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 10.8 7.9 137 12.3 10.0 123
DIVIDE PEAK 8880 15.8 13.1 121 16.3 13.8 118
OLD BATTLE 10000 22.0 20.2 109 26.2 22.6 116
SANDSTONE RS 8150 12.4 9.8 127 15.4 12.6 122
WHISKEY PARK 8950 20.3 18.7 109 23.1 19.5 118
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Basin wide percent of average 117 119
UPPER GREEN RIVER
BIG SANDY OPENING 9080 8.4 9.6 88 8.7 9.1 96
BLIND BULL SUM 8650 15.3 18.6 82 12.7 15.5 82
EAST RIM DIVIDE 7930 5.1 8.6 59 7.4 8.2 90
ELKHART PARK G.S. 9400 7.1 8.9 80 8.1 9.0 90
GROS VENTRE SUMMIT 8750 9.2 9.5 97 10.5 8.7 121
GUNSIGHT PASS 9820 6.3 -M * 10.1 -M *
KENDALL R.S. 7740 7.3 9.9 74 9.3 9.8 95
LOOMIS PARK 8240 10.1 11.3 89 11.7 11.9 98
NEW FORK LAKE 8340 5.7 7.7 74 6.1 7.9 77
SNIDER BASIN 8060 7.5 9.9 76 8.8 11.2 79
SPRING CREEK DIVIDE 9000 14.0 17.5 80 14.5 18.5 78
TRIPLE PEAK 8500 14.6 16.8 87 17.6 16.3 108
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Basin wide percent of average 81 92
LOWER GREEN RIVER
HAMS FORK 7840 6.9 8.5 81 6.6 8.4 79
HEWINTA 9519 6.6 6.8 97 11.3 9.4 120
HICKERSON PARK 9145 3.0 4.5 67 5.8 5.2 112
HOLE-IN-ROCK 9150 2.8 4.2 67 6.3 4.8 131
INDIAN CREEK 9425 14.1 17.7 80 13.1 16.9 78
KELLEY R.S. 8180 8.6 10.8 80 11.1 14.0 79
STEEL CREEK PARK 10200 8.7 9.5 92 12.7 10.2 125
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Basin wide percent of average 82 97
UPPER BEAR RIVER
BUG LAKE 7950 10.9 13.3 82 11.2 13.0 86
HAYDEN FORK 9212 12.2 9.9 123 15.9 13.7 116
KELLEY R.S. 8180 8.6 10.8 80 11.1 14.0 79
LILY LAKE 9156 9.5 8.3 114 12.2 11.6 105
MONTE CRISTO 8960 18.0 18.4 98 18.5 16.9 109
SALT RIVER SUMMIT 7760 7.6 9.4 81 9.8 12.7 77
TRIAL LAKE 9992 13.4 15.8 85 16.6 16.0 104
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Basin wide percent of average 93 97
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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.