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 SUNDAY: JANUARY 6 , 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 8.3 8.9 93 14.7 11.2 131
COTTONWOOD CREEK 7670 8.6 10.5 82 11.7 14.5 81
GRAND TARGHEE 9260 23.5 -M * 17.5 -M *
GRANITE CREEK 6770 6.4 8.4 76 12.1 10.2 119
GRASSY LAKE 7265 12.9 16.0 81 20.9 18.7 112
GROS VENTRE SUMMIT 8750 7.2 7.4 97 8.4 6.8 124
GUNSIGHT PASS 9820 4.7 -M * 8.3 -M *
LEWIS LAKE DIVIDE 7850 14.6 16.0 91 20.7 18.8 110
PHILLIPS BENCH 8200 12.4 13.6 91 16.5 14.6 113
SALT RIVER SUMMIT 7760 3.9 6.0 65 6.3 9.7 65
SNAKE RIVER STATION 6920 6.8 8.6 79 14.7 11.8 125
SPRING CREEK DIVIDE 9000 8.7 13.3 65 9.6 14.1 68
THUMB DIVIDE 7980 7.4 8.3 89 11.1 9.7 114
TOGWOTEE PASS 9580 14.1 12.5 113 15.9 12.9 123
TWO OCEAN PLATEAU 9240 19.5 14.3 136 17.6 14.4 122
WILLOW CREEK 8380 11.4 15.3 75 17.2 16.6 104
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Basin wide percent of average 89 107
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 13.5 12.3 110 12.9 10.7 121
BLACK BEAR 8170 21.3 18.7 114 22.6 19.0 119
CANYON 7870 7.6 6.7 113 10.9 8.3 131
FISHER CREEK 9100 22.2 17.5 127 20.0 18.4 109
MADISON PLATEAU 7750 13.0 12.1 107 17.0 13.2 129
NORTHEAST ENTRANCE 7350 3.2 5.4 59 7.4 6.8 109
PARKER PEAK 9400 13.2 11.3 117 13.4 8.7 154
SYLVAN LAKE 8420 10.1 11.3 89 14.6 11.6 126
THUMB DIVIDE 7980 7.4 8.3 89 11.1 9.7 114
TWO OCEAN PLATEAU 9240 19.5 14.3 136 17.6 14.4 122
WHISKEY CREEK 6800 7.9 8.2 96 13.6 10.6 128
WHITE MILL 8700 13.5 12.0 112 14.5 13.7 106
WOLVERINE 7650 4.1 6.2 66 7.8 7.4 105
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Basin wide percent of average 108 120
WIND RIVER
BURROUGHS CREEK 8750 8.6 7.3 118 11.3 8.6 131
COLD SPRINGS 9630 2.8 4.8 58 5.6 5.9 95
DEER PARK 9700 7.1 7.2 99 10.6 11.5 92
HOBBS PARK 10100 6.1 8.0 76 7.3 6.7 109
LITTLE WARM 9370 4.8 5.8 83 7.5 7.2 104
SOUTH PASS 9040 6.1 8.6 71 8.9 9.6 93
ST. LAWRENCE ALT 8620 2.8 3.9 72 4.6 4.8 96
TOGWOTEE PASS 9580 14.1 12.5 113 15.9 12.9 123
TOWNSEND CREEK 8700 3.3 4.5 73 6.3 6.2 102
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Basin wide percent of average 89 106
BIGHORN BASIN
BALD MTN. 9380 7.2 10.3 70 7.8 9.0 87
BEAR TRAP MEADOW 8200 4.5 2.7 167 5.6 4.6 122
BLACKWATER 9780 13.0 12.7 102 12.4 11.4 109
BONE SPRINGS DIV 9350 7.4 8.2 90 -M 7.7 *
EVENING STAR 9200 14.7 14.6 101 17.5 13.8 127
GRAVE SPRINGS 8550 3.9 4.4 89 5.4 5.2 104
KIRWIN 9550 7.2 6.2 116 8.7 6.2 140
MARQUETTE 8760 -M 5.0 * 5.8 5.4 107
MIDDLE POWDER 7760 4.6 5.8 79 5.0 7.1 70
OWL CREEK 8975 2.7 2.7 100 4.4 3.0 147
POWDER RIVER PASS 9480 5.6 5.5 102 7.6 6.3 121
SHELL CREEK 9580 8.1 7.7 105 8.5 7.1 120
SYLVAN LAKE 8420 10.1 11.3 89 14.6 11.6 126
SYLVAN ROAD 7120 4.8 6.6 73 12.7 10.6 120
TIMBER CREEK 7950 1.7 3.1 55 5.4 3.8 142
YOUNTS PEAK 8350 8.5 8.6 99 10.8 8.8 123
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Basin wide percent of average 94 116
SHOSHONE RIVER
BLACKWATER 9780 13.0 12.7 102 12.4 11.4 109
EVENING STAR 9200 14.7 14.6 101 17.5 13.8 127
KIRWIN 9550 7.2 6.2 116 8.7 6.2 140
MARQUETTE 8760 -M 5.0 * 5.8 5.4 107
SYLVAN LAKE 8420 10.1 11.3 89 14.6 11.6 126
SYLVAN ROAD 7120 4.8 6.6 73 12.7 10.6 120
YOUNTS PEAK 8350 8.5 8.6 99 10.8 8.8 123
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Basin wide percent of average 97 122
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.5 2.7 167 5.6 4.6 122
BIG GOOSE 7990 4.1 4.7 87 7.1 4.7 151
BONE SPRINGS DIV 9350 7.4 8.2 90 -M 7.7 *
BURGESS JUNCTION 7880 4.9 5.9 83 6.9 6.4 108
CLOUD PEAK RESERVOIR 9860 6.6 6.1 108 8.0 6.7 119
DOME LAKE 8880 5.0 6.4 78 8.3 7.2 115
GRAVE SPRINGS 8550 3.9 4.4 89 5.4 5.2 104
HANSEN SAWMILL 8360 3.2 3.4 94 5.3 4.4 120
MIDDLE POWDER 7760 4.6 5.8 79 5.0 7.1 70
POWDER RIVER PASS 9480 5.6 5.5 102 7.6 6.3 121
SUCKER CREEK 8880 5.4 5.6 96 7.2 7.0 103
TIE CREEK 6870 2.1 2.7 78 6.1 5.4 113
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Basin wide percent of average 93 112
BELLE FOURCHE
BLIND PARK 6890 2.2 4.0 55 4.3 6.5 66
COLE CANYON 5910 1.7 3.5 49 3.2 4.0 80
NORTH RAPID CREEK 6130 -M 3.6 * 3.4 5.5 62
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Basin wide percent of average 52 68
UPPER N. PLATTE RIVER
COLUMBINE 9160 9.1 11.0 83 12.3 12.4 99
DIVIDE PEAK 8880 11.1 9.9 112 11.6 10.7 108
ELK RIVER 8700 9.1 8.0 114 11.2 9.5 118
JOE WRIGHT 10120 10.5 10.3 102 13.1 12.6 104
NORTH FRENCH CREEK 10130 13.4 14.2 94 14.3 12.8 112
OLD BATTLE 10000 14.5 15.5 94 18.0 17.1 105
SAGE CREEK BASIN 7850 8.1 5.7 142 9.4 6.2 152
SOUTH BRUSH CREEK 8440 6.3 5.5 115 9.6 8.3 116
TOWER 10500 15.7 22.1 71 18.6 19.2 97
WEBBER SPRINGS 9250 11.2 12.2 92 14.1 13.9 101
WILLOW CREEK PASS 9540 8.5 5.9 144 8.7 6.7 130
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Basin wide percent of average 98 109
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 9.5 11.5 83 10.6 10.8 98
CASPER MTN. 7900 5.1 7.3 70 7.7 7.5 103
DEADMAN HILL 10220 8.4 8.1 104 8.5 8.3 102
DEER PARK 9700 7.1 7.2 99 10.6 11.5 92
LAPRELE CREEK 8375 2.4 5.7 42 5.2 6.5 80
RENO HILL 8400 5.5 6.9 80 7.4 7.5 99
ROACH 9700 9.6 7.9 122 11.8 9.1 130
SAND LAKE 10050 12.7 15.8 80 13.2 12.3 107
SOUTH PASS 9040 6.1 8.6 71 8.9 9.6 93
WINDY PEAK 7900 3.0 3.6 83 4.9 5.8 84
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Basin wide percent of average 84 100
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.4 4.7 136 8.9 7.6 117
DIVIDE PEAK 8880 11.1 9.9 112 11.6 10.7 108
OLD BATTLE 10000 14.5 15.5 94 18.0 17.1 105
SANDSTONE RS 8150 6.8 5.9 115 10.4 9.5 109
WHISKEY PARK 8950 11.9 12.2 98 15.8 14.3 110
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Basin wide percent of average 105 109
UPPER GREEN RIVER
BIG SANDY OPENING 9080 6.2 7.3 85 6.8 7.0 97
BLIND BULL SUM 8650 10.0 14.1 71 8.9 11.9 75
EAST RIM DIVIDE 7930 2.7 6.3 43 5.4 6.2 87
ELKHART PARK G.S. 9400 4.7 6.7 70 6.0 7.1 85
GROS VENTRE SUMMIT 8750 7.2 7.4 97 8.4 6.8 124
GUNSIGHT PASS 9820 4.7 -M * 8.3 -M *
KENDALL R.S. 7740 4.3 7.2 60 6.6 7.4 89
LOOMIS PARK 8240 6.4 8.6 74 8.0 9.0 89
NEW FORK LAKE 8340 3.7 5.8 64 4.8 6.3 76
SNIDER BASIN 8060 4.2 7.3 58 5.7 8.6 66
SPRING CREEK DIVIDE 9000 8.7 13.3 65 9.6 14.1 68
TRIPLE PEAK 8500 9.0 12.7 71 12.1 12.1 100
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Basin wide percent of average 69 85
LOWER GREEN RIVER
HAMS FORK 7840 3.5 5.9 59 4.4 6.3 70
HEWINTA 9519 3.6 4.5 80 8.4 7.4 114
HICKERSON PARK 9145 2.4 3.1 77 5.0 4.4 114
HOLE-IN-ROCK 9150 1.9 2.9 66 5.4 4.0 135
INDIAN CREEK 9425 9.0 13.3 68 8.8 13.0 68
KELLEY R.S. 8180 5.6 8.1 69 8.1 10.8 75
STEEL CREEK PARK 10200 5.1 7.1 72 9.3 8.0 116
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Basin wide percent of average 69 92
UPPER BEAR RIVER
BUG LAKE 7950 5.8 9.1 64 7.1 9.8 72
HAYDEN FORK 9212 6.6 6.9 96 10.0 10.6 94
KELLEY R.S. 8180 5.6 8.1 69 8.1 10.8 75
LILY LAKE 9156 4.9 5.9 83 8.2 9.1 90
MONTE CRISTO 8960 10.7 12.1 88 11.8 12.9 91
SALT RIVER SUMMIT 7760 3.9 6.0 65 6.3 9.7 65
TRIAL LAKE 9992 7.6 11.3 67 10.0 12.0 83
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Basin wide percent of average 76 82
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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.