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 THURSDAY: JANUARY 3 , 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 7.4 8.5 87 13.8 10.7 129
COTTONWOOD CREEK 7670 7.9 10.0 79 11.2 13.9 81
GRAND TARGHEE 9260 21.7 -M * 16.8 -M *
GRANITE CREEK 6770 5.3 7.9 67 11.1 9.8 113
GRASSY LAKE 7265 12.0 15.2 79 20.1 17.9 112
GROS VENTRE SUMMIT 8750 6.6 7.1 93 8.0 6.5 123
GUNSIGHT PASS 9820 4.3 -M * 7.8 -M *
LEWIS LAKE DIVIDE 7850 13.8 15.3 90 19.7 18.0 109
PHILLIPS BENCH 8200 10.4 13.0 80 14.8 13.9 106
SALT RIVER SUMMIT 7760 3.5 5.6 62 6.0 9.2 65
SNAKE RIVER STATION 6920 5.9 8.1 73 13.9 11.3 123
SPRING CREEK DIVIDE 9000 8.0 12.8 62 9.1 13.4 68
THUMB DIVIDE 7980 6.1 7.9 77 9.9 9.3 106
TOGWOTEE PASS 9580 13.4 12.0 112 15.2 12.4 123
TWO OCEAN PLATEAU 9240 18.4 13.8 133 16.9 13.8 122
WILLOW CREEK 8380 10.4 14.7 71 16.2 16.0 101
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Basin wide percent of average 85 106
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 13.4 11.8 114 12.8 10.3 124
BLACK BEAR 8170 19.8 17.8 111 21.3 18.2 117
CANYON 7870 7.2 6.3 114 10.4 8.0 130
FISHER CREEK 9100 21.5 16.7 129 19.9 17.6 113
MADISON PLATEAU 7750 11.7 11.6 101 15.6 12.7 123
NORTHEAST ENTRANCE 7350 3.1 5.1 61 7.2 6.6 109
PARKER PEAK 9400 13.0 10.9 119 12.9 8.4 154
SYLVAN LAKE 8420 9.5 10.9 87 14.0 11.2 125
THUMB DIVIDE 7980 6.1 7.9 77 9.9 9.3 106
TWO OCEAN PLATEAU 9240 18.4 13.8 133 16.9 13.8 122
WHISKEY CREEK 6800 6.8 7.7 88 12.6 10.2 124
WHITE MILL 8700 13.2 11.4 116 13.8 13.2 105
WOLVERINE 7650 4.2 5.9 71 7.9 7.2 110
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Basin wide percent of average 107 119
WIND RIVER
BURROUGHS CREEK 8750 8.4 6.9 122 11.2 8.2 137
COLD SPRINGS 9630 2.3 4.7 49 5.1 5.8 88
DEER PARK 9700 5.5 7.0 79 8.9 11.1 80
HOBBS PARK 10100 5.1 7.8 65 7.0 6.5 108
LITTLE WARM 9370 4.4 5.5 80 7.0 6.9 101
SOUTH PASS 9040 4.8 8.3 58 7.8 9.4 83
ST. LAWRENCE ALT 8620 2.6 3.8 68 4.1 4.7 87
TOGWOTEE PASS 9580 13.4 12.0 112 15.2 12.4 123
TOWNSEND CREEK 8700 3.0 4.4 68 5.9 6.1 97
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Basin wide percent of average 82 102
BIGHORN BASIN
BALD MTN. 9380 6.9 9.9 70 8.1 8.7 93
BEAR TRAP MEADOW 8200 4.5 2.6 173 5.6 4.6 122
BLACKWATER 9780 12.7 12.3 103 12.2 11.0 111
BONE SPRINGS DIV 9350 6.9 8.0 86 7.5 7.4 101
EVENING STAR 9200 14.3 14.1 101 17.4 13.3 131
GRAVE SPRINGS 8550 4.0 4.2 95 5.4 5.0 108
KIRWIN 9550 7.0 6.0 117 8.5 6.0 142
MARQUETTE 8760 1.9 5.0 38 5.9 5.4 109
MIDDLE POWDER 7760 4.6 5.6 82 5.0 6.9 72
OWL CREEK 8975 2.8 2.7 104 4.4 3.0 147
POWDER RIVER PASS 9480 5.3 5.4 98 7.3 6.1 120
SHELL CREEK 9580 7.8 7.5 104 8.3 6.9 120
SYLVAN LAKE 8420 9.5 10.9 87 14.0 11.2 125
SYLVAN ROAD 7120 4.6 6.4 72 12.5 10.3 121
TIMBER CREEK 7950 1.8 3.0 60 5.5 3.8 145
YOUNTS PEAK 8350 8.1 8.1 100 10.7 8.4 127
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Basin wide percent of average 92 117
SHOSHONE RIVER
BLACKWATER 9780 12.7 12.3 103 12.2 11.0 111
EVENING STAR 9200 14.3 14.1 101 17.4 13.3 131
KIRWIN 9550 7.0 6.0 117 8.5 6.0 142
MARQUETTE 8760 1.9 5.0 38 5.9 5.4 109
SYLVAN LAKE 8420 9.5 10.9 87 14.0 11.2 125
SYLVAN ROAD 7120 4.6 6.4 72 12.5 10.3 121
YOUNTS PEAK 8350 8.1 8.1 100 10.7 8.4 127
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Basin wide percent of average 93 124
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.5 2.6 173 5.6 4.6 122
BIG GOOSE 7990 4.3 4.5 96 7.3 4.6 159
BONE SPRINGS DIV 9350 6.9 8.0 86 7.5 7.4 101
BURGESS JUNCTION 7880 4.9 5.6 88 7.3 6.2 118
CLOUD PEAK RESERVOIR 9860 6.6 5.8 114 8.3 6.5 128
DOME LAKE 8880 5.0 6.2 81 8.4 7.0 120
GRAVE SPRINGS 8550 4.0 4.2 95 5.4 5.0 108
HANSEN SAWMILL 8360 3.3 3.3 100 5.5 4.4 125
MIDDLE POWDER 7760 4.6 5.6 82 5.0 6.9 72
POWDER RIVER PASS 9480 5.3 5.4 98 7.3 6.1 120
SUCKER CREEK 8880 5.4 5.4 100 7.6 6.8 112
TIE CREEK 6870 2.3 2.6 88 6.1 5.2 117
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Basin wide percent of average 96 115
BELLE FOURCHE
BLIND PARK 6890 2.2 3.7 59 4.4 6.3 70
COLE CANYON 5910 1.8 3.4 53 3.2 4.0 80
NORTH RAPID CREEK 6130 3.4 3.4 100 3.5 5.4 65
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Basin wide percent of average 70 71
UPPER N. PLATTE RIVER
COLUMBINE 9160 8.3 10.4 80 11.6 11.9 97
DIVIDE PEAK 8880 10.4 9.5 109 11.1 10.3 108
ELK RIVER 8700 8.2 7.6 108 10.6 9.1 116
JOE WRIGHT 10120 9.5 9.9 96 12.1 12.2 99
NORTH FRENCH CREEK 10130 12.8 13.7 93 13.8 12.3 112
OLD BATTLE 10000 13.8 15.0 92 17.2 16.4 105
SAGE CREEK BASIN 7850 7.6 5.5 138 9.0 6.0 150
SOUTH BRUSH CREEK 8440 5.8 5.3 109 9.4 8.0 118
TOWER 10500 15.0 21.2 71 17.8 18.4 97
WEBBER SPRINGS 9250 10.6 11.8 90 13.4 13.4 100
WILLOW CREEK PASS 9540 7.2 5.7 126 8.2 6.6 124
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Basin wide percent of average 94 108
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 9.3 11.1 84 10.4 10.4 100
CASPER MTN. 7900 5.1 7.1 72 7.8 7.3 107
DEADMAN HILL 10220 7.9 7.8 101 8.0 8.0 100
DEER PARK 9700 5.5 7.0 79 8.9 11.1 80
LAPRELE CREEK 8375 2.4 5.5 44 5.2 6.3 83
RENO HILL 8400 5.7 6.7 85 7.7 7.3 105
ROACH 9700 8.8 7.6 116 10.9 8.7 125
SAND LAKE 10050 12.3 15.3 80 12.8 11.9 108
SOUTH PASS 9040 4.8 8.3 58 7.8 9.4 83
WINDY PEAK 7900 3.2 3.5 91 4.9 5.7 86
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Basin wide percent of average 81 98
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 5.7 4.3 133 8.3 7.3 114
DIVIDE PEAK 8880 10.4 9.5 109 11.1 10.3 108
OLD BATTLE 10000 13.8 15.0 92 17.2 16.4 105
SANDSTONE RS 8150 6.3 5.5 115 9.9 9.2 108
WHISKEY PARK 8950 11.1 11.5 97 15.2 13.6 112
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Basin wide percent of average 103 109
UPPER GREEN RIVER
BIG SANDY OPENING 9080 4.8 7.1 68 5.5 6.7 82
BLIND BULL SUM 8650 9.1 13.5 67 8.4 11.4 74
EAST RIM DIVIDE 7930 2.4 6.1 39 5.1 5.9 86
ELKHART PARK G.S. 9400 4.6 6.5 71 6.0 6.9 87
GROS VENTRE SUMMIT 8750 6.6 7.1 93 8.0 6.5 123
GUNSIGHT PASS 9820 4.3 -M * 7.8 -M *
KENDALL R.S. 7740 4.0 6.9 58 6.5 7.1 92
LOOMIS PARK 8240 5.8 8.2 71 7.6 8.6 88
NEW FORK LAKE 8340 3.4 5.5 62 4.6 6.1 75
SNIDER BASIN 8060 3.5 7.1 49 5.2 8.2 63
SPRING CREEK DIVIDE 9000 8.0 12.8 62 9.1 13.4 68
TRIPLE PEAK 8500 8.4 12.2 69 11.4 11.6 98
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Basin wide percent of average 65 84
LOWER GREEN RIVER
HAMS FORK 7840 2.9 5.7 51 4.0 6.0 67
HEWINTA 9519 2.9 4.3 67 7.8 7.1 110
HICKERSON PARK 9145 1.8 3.0 60 4.5 4.3 105
HOLE-IN-ROCK 9150 1.6 2.7 59 4.9 3.9 126
INDIAN CREEK 9425 8.0 12.8 62 8.1 12.5 65
KELLEY R.S. 8180 4.8 7.8 62 7.4 10.4 71
STEEL CREEK PARK 10200 4.4 6.8 65 8.5 7.7 110
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Basin wide percent of average 61 87
UPPER BEAR RIVER
BUG LAKE 7950 4.6 8.6 53 6.4 9.4 68
HAYDEN FORK 9212 5.0 6.5 77 8.8 10.2 86
KELLEY R.S. 8180 4.8 7.8 62 7.4 10.4 71
LILY LAKE 9156 3.6 5.6 64 7.6 8.8 86
MONTE CRISTO 8960 8.6 11.5 75 10.1 12.4 81
SALT RIVER SUMMIT 7760 3.5 5.6 62 6.0 9.2 65
TRIAL LAKE 9992 6.3 10.8 58 8.7 11.6 75
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Basin wide percent of average 65 76
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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.