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 WEDNESDAY: JANUARY 9 , 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 8.7 9.4 93 15.2 11.6 131
COTTONWOOD CREEK 7670 9.3 10.9 85 12.4 15.1 82
GRAND TARGHEE 9260 24.2 -M * 18.1 -M *
GRANITE CREEK 6770 7.1 8.9 80 12.9 10.7 121
GRASSY LAKE 7265 13.8 16.8 82 21.7 19.6 111
GROS VENTRE SUMMIT 8750 7.4 7.6 97 8.6 7.0 123
GUNSIGHT PASS 9820 4.8 -M * 8.5 -M *
LEWIS LAKE DIVIDE 7850 15.6 16.8 93 21.7 19.6 111
PHILLIPS BENCH 8200 13.2 14.2 93 17.3 15.2 114
SALT RIVER SUMMIT 7760 4.5 6.3 71 6.8 10.1 67
SNAKE RIVER STATION 6920 7.4 9.0 82 15.2 12.3 124
SPRING CREEK DIVIDE 9000 9.5 13.8 69 10.4 14.6 71
THUMB DIVIDE 7980 7.8 8.7 90 11.4 10.1 113
TOGWOTEE PASS 9580 14.3 13.0 110 16.2 13.4 121
TWO OCEAN PLATEAU 9240 20.0 14.9 134 17.7 14.9 119
WILLOW CREEK 8380 12.1 15.9 76 17.9 17.3 103
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Basin wide percent of average 91 107
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 13.8 12.7 109 13.2 11.1 119
BLACK BEAR 8170 23.4 19.5 120 24.4 19.9 123
CANYON 7870 8.3 6.9 120 11.5 8.6 134
FISHER CREEK 9100 22.8 18.3 125 20.9 19.2 109
MADISON PLATEAU 7750 14.4 12.6 114 18.2 13.7 133
NORTHEAST ENTRANCE 7350 3.4 5.7 60 7.6 7.1 107
PARKER PEAK 9400 13.5 11.7 115 13.4 8.9 151
SYLVAN LAKE 8420 10.4 11.7 89 14.9 12.0 124
THUMB DIVIDE 7980 7.8 8.7 90 11.4 10.1 113
TWO OCEAN PLATEAU 9240 20.0 14.9 134 17.7 14.9 119
WHISKEY CREEK 6800 8.7 8.5 102 14.5 11.0 132
WHITE MILL 8700 14.1 12.5 113 14.7 14.2 104
WOLVERINE 7650 4.1 6.5 63 7.9 7.6 104
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Basin wide percent of average 110 120
WIND RIVER
BURROUGHS CREEK 8750 8.8 7.7 114 11.5 8.9 129
COLD SPRINGS 9630 2.9 4.9 59 5.7 6.1 93
DEER PARK 9700 7.3 7.3 100 11.0 11.9 92
HOBBS PARK 10100 6.3 8.1 78 7.6 6.9 110
LITTLE WARM 9370 5.0 6.0 83 7.8 7.4 105
SOUTH PASS 9040 6.4 8.9 72 9.2 9.9 93
ST. LAWRENCE ALT 8620 2.9 4.0 72 4.7 4.9 96
TOGWOTEE PASS 9580 14.3 13.0 110 16.2 13.4 121
TOWNSEND CREEK 8700 3.5 4.7 74 6.5 6.3 103
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Basin wide percent of average 89 106
BIGHORN BASIN
BALD MTN. 9380 7.5 10.8 69 8.7 9.4 93
BEAR TRAP MEADOW 8200 4.6 2.8 164 5.7 4.7 121
BLACKWATER 9780 13.2 13.1 101 12.7 11.7 109
BONE SPRINGS DIV 9350 7.6 8.6 88 8.2 7.9 104
EVENING STAR 9200 15.1 15.3 99 17.7 14.3 124
GRAVE SPRINGS 8550 4.0 4.6 87 5.5 5.3 104
KIRWIN 9550 7.3 6.4 114 8.8 6.4 138
MARQUETTE 8760 1.7 5.2 33 6.3 5.5 115
MIDDLE POWDER 7760 4.8 5.9 81 5.2 7.2 72
OWL CREEK 8975 2.8 2.8 100 4.4 3.1 142
POWDER RIVER PASS 9480 5.9 5.8 102 7.8 6.6 118
SHELL CREEK 9580 8.3 8.0 104 8.7 7.3 119
SYLVAN LAKE 8420 10.4 11.7 89 14.9 12.0 124
SYLVAN ROAD 7120 4.9 6.9 71 12.9 11.0 117
TIMBER CREEK 7950 1.7 3.1 55 5.7 3.9 146
YOUNTS PEAK 8350 8.7 9.0 97 10.9 9.1 120
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Basin wide percent of average 90 115
SHOSHONE RIVER
BLACKWATER 9780 13.2 13.1 101 12.7 11.7 109
EVENING STAR 9200 15.1 15.3 99 17.7 14.3 124
KIRWIN 9550 7.3 6.4 114 8.8 6.4 138
MARQUETTE 8760 1.7 5.2 33 6.3 5.5 115
SYLVAN LAKE 8420 10.4 11.7 89 14.9 12.0 124
SYLVAN ROAD 7120 4.9 6.9 71 12.9 11.0 117
YOUNTS PEAK 8350 8.7 9.0 97 10.9 9.1 120
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Basin wide percent of average 91 120
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.6 2.8 164 5.7 4.7 121
BIG GOOSE 7990 4.2 4.8 88 7.2 4.7 153
BONE SPRINGS DIV 9350 7.6 8.6 88 8.2 7.9 104
BURGESS JUNCTION 7880 5.2 6.0 87 7.3 6.6 111
CLOUD PEAK RESERVOIR 9860 6.9 6.3 110 8.6 6.9 125
DOME LAKE 8880 5.1 6.5 78 8.5 7.3 116
GRAVE SPRINGS 8550 4.0 4.6 87 5.5 5.3 104
HANSEN SAWMILL 8360 3.5 3.4 103 5.6 4.5 124
MIDDLE POWDER 7760 4.8 5.9 81 5.2 7.2 72
POWDER RIVER PASS 9480 5.9 5.8 102 7.8 6.6 118
SUCKER CREEK 8880 5.6 5.7 98 7.6 7.2 106
TIE CREEK 6870 2.2 3.0 73 6.1 5.5 111
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Basin wide percent of average 94 112
BELLE FOURCHE
BLIND PARK 6890 2.3 4.1 56 4.5 6.6 68
COLE CANYON 5910 1.7 3.6 47 3.2 4.1 78
NORTH RAPID CREEK 6130 2.8 3.7 76 3.6 5.6 64
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Basin wide percent of average 60 69
UPPER N. PLATTE RIVER
COLUMBINE 9160 9.8 11.6 84 13.0 12.9 101
DIVIDE PEAK 8880 11.3 10.3 110 11.9 11.1 107
ELK RIVER 8700 9.6 8.5 113 11.7 9.9 118
JOE WRIGHT 10120 11.2 10.7 105 13.7 13.1 105
NORTH FRENCH CREEK 10130 13.8 14.8 93 14.7 13.2 111
OLD BATTLE 10000 15.1 16.0 94 18.5 17.8 104
SAGE CREEK BASIN 7850 8.4 6.0 140 9.7 6.4 152
SOUTH BRUSH CREEK 8440 6.4 5.7 112 9.8 8.6 114
TOWER 10500 17.0 23.0 74 19.6 19.9 98
WEBBER SPRINGS 9250 11.6 12.6 92 14.6 14.5 101
WILLOW CREEK PASS 9540 8.5 6.1 139 9.1 6.9 132
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Basin wide percent of average 98 109
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 10.0 12.0 83 11.0 11.3 97
CASPER MTN. 7900 5.2 7.5 69 7.8 7.6 103
DEADMAN HILL 10220 8.8 8.4 105 8.9 8.6 103
DEER PARK 9700 7.3 7.3 100 11.0 11.9 92
LAPRELE CREEK 8375 2.4 5.9 41 5.2 6.7 78
RENO HILL 8400 5.7 7.1 80 7.6 7.7 99
ROACH 9700 10.1 8.2 123 12.2 9.4 130
SAND LAKE 10050 13.1 16.3 80 13.7 12.8 107
SOUTH PASS 9040 6.4 8.9 72 9.2 9.9 93
WINDY PEAK 7900 3.2 3.7 86 5.0 6.0 83
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Basin wide percent of average 85 100
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.7 5.1 131 9.1 7.9 115
DIVIDE PEAK 8880 11.3 10.3 110 11.9 11.1 107
OLD BATTLE 10000 15.1 16.0 94 18.5 17.8 104
SANDSTONE RS 8150 7.0 6.4 109 10.7 9.9 108
WHISKEY PARK 8950 12.5 12.9 97 16.3 14.9 109
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Basin wide percent of average 104 108
UPPER GREEN RIVER
BIG SANDY OPENING 9080 6.6 7.6 87 7.2 7.2 100
BLIND BULL SUM 8650 10.6 14.6 73 9.5 12.3 77
EAST RIM DIVIDE 7930 3.1 6.6 47 5.7 6.4 89
ELKHART PARK G.S. 9400 5.0 7.0 71 6.4 7.3 88
GROS VENTRE SUMMIT 8750 7.4 7.6 97 8.6 7.0 123
GUNSIGHT PASS 9820 4.8 -M * 8.5 -M *
KENDALL R.S. 7740 4.7 7.5 63 6.9 7.7 90
LOOMIS PARK 8240 6.7 8.9 75 8.4 9.3 90
NEW FORK LAKE 8340 3.9 6.0 65 4.9 6.5 75
SNIDER BASIN 8060 4.5 7.6 59 6.2 8.9 70
SPRING CREEK DIVIDE 9000 9.5 13.8 69 10.4 14.6 71
TRIPLE PEAK 8500 9.7 13.2 73 12.8 12.6 102
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Basin wide percent of average 71 87
LOWER GREEN RIVER
HAMS FORK 7840 4.1 6.2 66 4.9 6.5 75
HEWINTA 9519 4.3 4.7 91 8.9 7.6 117
HICKERSON PARK 9145 2.5 3.3 76 5.2 4.4 118
HOLE-IN-ROCK 9150 2.1 3.0 70 5.5 4.1 134
INDIAN CREEK 9425 9.6 13.9 69 9.4 13.5 70
KELLEY R.S. 8180 6.1 8.4 73 8.6 11.3 76
STEEL CREEK PARK 10200 5.7 7.3 78 9.7 8.2 118
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Basin wide percent of average 74 94
UPPER BEAR RIVER
BUG LAKE 7950 7.0 9.6 73 8.2 10.2 80
HAYDEN FORK 9212 7.8 7.2 108 11.2 11.0 102
KELLEY R.S. 8180 6.1 8.4 73 8.6 11.3 76
LILY LAKE 9156 5.5 6.2 89 8.9 9.4 95
MONTE CRISTO 8960 12.2 12.8 95 13.2 13.4 99
SALT RIVER SUMMIT 7760 4.5 6.3 71 6.8 10.1 67
TRIAL LAKE 9992 8.7 11.8 74 10.7 12.5 86
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Basin wide percent of average 83 87
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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.