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 TUESDAY: JANUARY 8 , 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 8.5 9.2 92 14.8 11.5 129
COTTONWOOD CREEK 7670 9.1 10.8 84 12.2 14.9 82
GRAND TARGHEE 9260 23.7 -M * 17.7 -M *
GRANITE CREEK 6770 6.8 8.7 78 12.6 10.5 120
GRASSY LAKE 7265 13.4 16.6 81 21.3 19.3 110
GROS VENTRE SUMMIT 8750 7.2 7.6 95 8.5 6.9 123
GUNSIGHT PASS 9820 4.8 -M * 8.5 -M *
LEWIS LAKE DIVIDE 7850 14.9 16.6 90 21.2 19.4 109
PHILLIPS BENCH 8200 12.7 14.0 91 16.9 15.0 113
SALT RIVER SUMMIT 7760 4.2 6.2 68 6.6 9.9 67
SNAKE RIVER STATION 6920 7.0 8.8 80 14.9 12.1 123
SPRING CREEK DIVIDE 9000 9.2 13.6 68 10.2 14.5 70
THUMB DIVIDE 7980 7.6 8.5 89 11.2 10.0 112
TOGWOTEE PASS 9580 14.2 12.8 111 16.0 13.2 121
TWO OCEAN PLATEAU 9240 19.6 14.7 133 17.6 14.7 120
WILLOW CREEK 8380 11.9 15.7 76 17.7 17.1 104
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Basin wide percent of average 89 107
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 13.7 12.6 109 13.1 10.9 120
BLACK BEAR 8170 22.5 19.1 118 23.7 19.6 121
CANYON 7870 8.2 6.8 121 11.4 8.5 134
FISHER CREEK 9100 22.7 18.0 126 20.9 19.0 110
MADISON PLATEAU 7750 13.9 12.5 111 17.8 13.5 132
NORTHEAST ENTRANCE 7350 3.3 5.6 59 7.5 7.0 107
PARKER PEAK 9400 13.4 11.6 116 13.4 8.9 151
SYLVAN LAKE 8420 10.3 11.6 89 14.7 11.9 124
THUMB DIVIDE 7980 7.6 8.5 89 11.2 10.0 112
TWO OCEAN PLATEAU 9240 19.6 14.7 133 17.6 14.7 120
WHISKEY CREEK 6800 8.4 8.3 101 14.2 10.9 130
WHITE MILL 8700 14.1 12.3 115 14.7 14.1 104
WOLVERINE 7650 4.1 6.5 63 7.7 7.5 103
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Basin wide percent of average 109 120
WIND RIVER
BURROUGHS CREEK 8750 8.7 7.5 116 11.4 8.8 130
COLD SPRINGS 9630 2.8 4.9 57 5.7 6.0 95
DEER PARK 9700 7.4 7.3 101 10.9 11.8 92
HOBBS PARK 10100 6.2 8.1 77 7.4 6.8 109
LITTLE WARM 9370 4.9 5.9 83 7.6 7.3 104
SOUTH PASS 9040 6.2 8.8 70 9.2 9.8 94
ST. LAWRENCE ALT 8620 2.8 4.0 70 4.6 4.8 96
TOGWOTEE PASS 9580 14.2 12.8 111 16.0 13.2 121
TOWNSEND CREEK 8700 3.3 4.7 70 6.5 6.3 103
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Basin wide percent of average 88 106
BIGHORN BASIN
BALD MTN. 9380 7.5 10.6 71 8.7 9.3 94
BEAR TRAP MEADOW 8200 4.6 2.8 164 5.7 4.7 121
BLACKWATER 9780 13.1 13.0 101 12.5 11.6 108
BONE SPRINGS DIV 9350 7.6 8.5 89 8.1 7.8 104
EVENING STAR 9200 14.9 15.1 99 17.6 14.1 125
GRAVE SPRINGS 8550 4.0 4.5 89 5.5 5.2 106
KIRWIN 9550 7.3 6.3 116 8.8 6.3 140
MARQUETTE 8760 1.6 5.1 31 6.2 5.5 113
MIDDLE POWDER 7760 4.8 5.8 83 5.2 7.2 72
OWL CREEK 8975 2.7 2.8 96 4.4 3.1 142
POWDER RIVER PASS 9480 5.9 5.7 104 7.7 6.5 118
SHELL CREEK 9580 8.3 7.9 105 8.6 7.2 119
SYLVAN LAKE 8420 10.3 11.6 89 14.7 11.9 124
SYLVAN ROAD 7120 4.9 6.8 72 12.9 10.9 118
TIMBER CREEK 7950 -M 3.1 * 5.5 3.9 141
YOUNTS PEAK 8350 8.6 8.8 98 10.9 9.0 121
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Basin wide percent of average 92 115
SHOSHONE RIVER
BLACKWATER 9780 13.1 13.0 101 12.5 11.6 108
EVENING STAR 9200 14.9 15.1 99 17.6 14.1 125
KIRWIN 9550 7.3 6.3 116 8.8 6.3 140
MARQUETTE 8760 1.6 5.1 31 6.2 5.5 113
SYLVAN LAKE 8420 10.3 11.6 89 14.7 11.9 124
SYLVAN ROAD 7120 4.9 6.8 72 12.9 10.9 118
YOUNTS PEAK 8350 8.6 8.8 98 10.9 9.0 121
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Basin wide percent of average 91 121
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.6 2.8 164 5.7 4.7 121
BIG GOOSE 7990 4.1 4.8 85 7.0 4.7 149
BONE SPRINGS DIV 9350 7.6 8.5 89 8.1 7.8 104
BURGESS JUNCTION 7880 5.2 5.9 88 7.4 6.5 114
CLOUD PEAK RESERVOIR 9860 6.8 6.2 110 8.6 6.8 126
DOME LAKE 8880 5.1 6.4 80 8.4 7.3 115
GRAVE SPRINGS 8550 4.0 4.5 89 5.5 5.2 106
HANSEN SAWMILL 8360 3.5 3.4 103 5.5 4.5 122
MIDDLE POWDER 7760 4.8 5.8 83 5.2 7.2 72
POWDER RIVER PASS 9480 5.9 5.7 104 7.7 6.5 118
SUCKER CREEK 8880 5.6 5.6 100 7.2 7.2 100
TIE CREEK 6870 2.1 2.9 72 6.1 5.5 111
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Basin wide percent of average 95 112
BELLE FOURCHE
BLIND PARK 6890 2.3 4.0 57 4.5 6.6 68
COLE CANYON 5910 1.7 3.6 47 3.3 4.1 80
NORTH RAPID CREEK 6130 2.7 3.7 73 3.5 5.5 64
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Basin wide percent of average 59 70
UPPER N. PLATTE RIVER
COLUMBINE 9160 9.5 11.4 83 12.7 12.8 99
DIVIDE PEAK 8880 11.2 10.1 111 11.7 11.0 106
ELK RIVER 8700 9.5 8.4 113 11.5 9.8 117
JOE WRIGHT 10120 11.0 10.6 104 13.6 12.9 105
NORTH FRENCH CREEK 10130 13.7 14.6 94 14.6 13.1 111
OLD BATTLE 10000 14.8 15.8 94 18.1 17.6 103
SAGE CREEK BASIN 7850 8.2 5.9 139 9.6 6.4 150
SOUTH BRUSH CREEK 8440 6.3 5.6 112 9.6 8.5 113
TOWER 10500 16.5 22.7 73 19.5 19.7 99
WEBBER SPRINGS 9250 11.3 12.5 90 14.3 14.3 100
WILLOW CREEK PASS 9540 8.6 6.0 143 9.0 6.9 130
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Basin wide percent of average 98 108
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 9.8 11.8 83 10.9 11.1 98
CASPER MTN. 7900 5.0 7.4 68 7.7 7.6 101
DEADMAN HILL 10220 8.7 8.3 105 8.9 8.5 105
DEER PARK 9700 7.4 7.3 101 10.9 11.8 92
LAPRELE CREEK 8375 2.3 5.8 40 5.1 6.6 77
RENO HILL 8400 5.5 7.0 79 7.3 7.7 95
ROACH 9700 9.9 8.1 122 12.0 9.3 129
SAND LAKE 10050 12.9 16.1 80 13.4 12.6 106
SOUTH PASS 9040 6.2 8.8 70 9.2 9.8 94
WINDY PEAK 7900 3.1 3.7 84 4.9 5.9 83
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Basin wide percent of average 84 99
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.4 4.9 131 8.9 7.8 114
DIVIDE PEAK 8880 11.2 10.1 111 11.7 11.0 106
OLD BATTLE 10000 14.8 15.8 94 18.1 17.6 103
SANDSTONE RS 8150 6.7 6.2 108 10.4 9.8 106
WHISKEY PARK 8950 12.1 12.7 95 16.2 14.7 110
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Basin wide percent of average 103 107
UPPER GREEN RIVER
BIG SANDY OPENING 9080 6.3 7.5 84 6.8 7.1 96
BLIND BULL SUM 8650 10.3 14.4 72 9.2 12.2 75
EAST RIM DIVIDE 7930 2.9 6.5 45 5.5 6.3 87
ELKHART PARK G.S. 9400 4.8 6.9 70 6.1 7.3 84
GROS VENTRE SUMMIT 8750 7.2 7.6 95 8.5 6.9 123
GUNSIGHT PASS 9820 4.8 -M * 8.5 -M *
KENDALL R.S. 7740 4.5 7.4 61 6.8 7.6 89
LOOMIS PARK 8240 6.6 8.8 75 8.3 9.2 90
NEW FORK LAKE 8340 3.9 5.9 66 4.8 6.4 75
SNIDER BASIN 8060 4.4 7.5 59 6.0 8.8 68
SPRING CREEK DIVIDE 9000 9.2 13.6 68 10.2 14.5 70
TRIPLE PEAK 8500 9.5 13.0 73 12.6 12.4 102
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Basin wide percent of average 70 86
LOWER GREEN RIVER
HAMS FORK 7840 3.9 6.1 64 4.7 6.4 73
HEWINTA 9519 4.1 4.7 87 8.8 7.5 117
HICKERSON PARK 9145 2.2 3.2 69 4.8 4.4 109
HOLE-IN-ROCK 9150 1.9 3.0 63 5.4 4.1 132
INDIAN CREEK 9425 9.3 13.7 68 9.1 13.4 68
KELLEY R.S. 8180 5.8 8.3 70 8.4 11.1 76
STEEL CREEK PARK 10200 5.5 7.3 75 9.7 8.1 120
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Basin wide percent of average 71 93
UPPER BEAR RIVER
BUG LAKE 7950 6.6 9.4 70 7.8 10.1 77
HAYDEN FORK 9212 7.5 7.1 106 10.9 10.9 100
KELLEY R.S. 8180 5.8 8.3 70 8.4 11.1 76
LILY LAKE 9156 5.4 6.1 89 8.7 9.3 94
MONTE CRISTO 8960 11.8 12.6 94 12.9 13.2 98
SALT RIVER SUMMIT 7760 4.2 6.2 68 6.6 9.9 67
TRIAL LAKE 9992 8.2 11.6 71 10.6 12.3 86
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Basin wide percent of average 81 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.