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 17 , 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 9.7 10.6 92 16.1 12.8 126
COTTONWOOD CREEK 7670 11.2 12.1 93 14.1 16.5 85
GRAND TARGHEE 9260 26.7 -M * 20.0 -M *
GRANITE CREEK 6770 8.4 10.1 83 14.1 11.8 119
GRASSY LAKE 7265 15.9 19.0 84 24.1 21.7 111
GROS VENTRE SUMMIT 8750 7.7 8.3 93 9.1 7.6 120
GUNSIGHT PASS 9820 4.9 -M * 8.8 -M *
LEWIS LAKE DIVIDE 7850 16.7 19.0 88 22.5 21.6 104
PHILLIPS BENCH 8200 15.2 15.7 97 19.0 16.8 113
SALT RIVER SUMMIT 7760 5.2 7.3 71 7.5 11.0 68
SNAKE RIVER STATION 6920 8.3 10.2 81 16.3 13.5 121
SPRING CREEK DIVIDE 9000 11.0 15.0 73 11.7 16.1 73
THUMB DIVIDE 7980 8.1 9.7 84 11.6 11.1 105
TOGWOTEE PASS 9580 15.8 14.4 110 17.6 14.7 120
TWO OCEAN PLATEAU 9240 21.1 16.3 129 18.7 16.2 115
WILLOW CREEK 8380 15.1 17.4 87 20.6 19.0 108
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Basin wide percent of average 92 106
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 14.6 14.3 102 13.9 12.1 115
BLACK BEAR 8170 24.8 22.0 113 25.5 22.2 115
CANYON 7870 9.1 7.8 117 12.1 9.4 129
FISHER CREEK 9100 24.2 20.8 116 22.2 21.3 104
MADISON PLATEAU 7750 15.2 14.2 107 19.0 15.0 127
NORTHEAST ENTRANCE 7350 3.9 6.6 59 8.0 7.7 104
PARKER PEAK 9400 14.4 13.0 111 14.1 9.7 145
SYLVAN LAKE 8420 11.2 13.1 85 15.8 13.0 122
THUMB DIVIDE 7980 8.1 9.7 84 11.6 11.1 105
TWO OCEAN PLATEAU 9240 21.1 16.3 129 18.7 16.2 115
WHISKEY CREEK 6800 9.2 9.5 97 15.3 12.0 128
WHITE MILL 8700 14.9 14.1 106 15.9 15.7 101
WOLVERINE 7650 4.5 7.4 61 8.2 8.2 100
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Basin wide percent of average 104 115
WIND RIVER
BURROUGHS CREEK 8750 9.3 8.9 104 12.0 9.8 122
COLD SPRINGS 9630 3.2 5.5 58 6.0 6.5 92
DEER PARK 9700 7.7 9.6 80 11.3 12.8 88
HOBBS PARK 10100 6.5 9.0 72 7.6 7.4 103
LITTLE WARM 9370 5.3 6.8 78 8.1 8.1 100
SOUTH PASS 9040 6.6 9.9 67 9.6 10.7 90
ST. LAWRENCE ALT 8620 3.0 4.3 70 4.9 5.1 96
TOGWOTEE PASS 9580 15.8 14.4 110 17.6 14.7 120
TOWNSEND CREEK 8700 3.8 5.1 75 7.0 6.7 104
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Basin wide percent of average 83 103
BIGHORN BASIN
BALD MTN. 9380 8.3 11.9 70 9.4 10.3 91
BEAR TRAP MEADOW 8200 4.8 3.0 160 5.8 5.0 116
BLACKWATER 9780 13.8 14.6 95 13.3 12.6 106
BONE SPRINGS DIV 9350 8.0 9.4 85 11.1 8.5 131
EVENING STAR 9200 16.2 17.3 94 19.1 15.5 123
GRAVE SPRINGS 8550 4.3 5.0 86 5.9 5.8 102
KIRWIN 9550 7.6 7.0 109 9.1 6.9 132
MARQUETTE 8760 1.9 5.5 35 6.1 5.8 105
MIDDLE POWDER 7760 5.1 6.4 80 5.4 7.6 71
OWL CREEK 8975 3.1 3.1 100 4.6 3.3 139
POWDER RIVER PASS 9480 6.5 6.4 102 8.4 7.2 117
SHELL CREEK 9580 8.8 8.8 100 9.1 8.0 114
SYLVAN LAKE 8420 11.2 13.1 85 15.8 13.0 122
SYLVAN ROAD 7120 5.6 7.7 73 13.7 11.9 115
TIMBER CREEK 7950 1.8 3.4 53 5.8 4.1 141
YOUNTS PEAK 8350 9.4 10.2 92 11.6 10.0 116
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Basin wide percent of average 88 114
SHOSHONE RIVER
BLACKWATER 9780 13.8 14.6 95 13.3 12.6 106
EVENING STAR 9200 16.2 17.3 94 19.1 15.5 123
KIRWIN 9550 7.6 7.0 109 9.1 6.9 132
MARQUETTE 8760 1.9 5.5 35 6.1 5.8 105
SYLVAN LAKE 8420 11.2 13.1 85 15.8 13.0 122
SYLVAN ROAD 7120 5.6 7.7 73 13.7 11.9 115
YOUNTS PEAK 8350 9.4 10.2 92 11.6 10.0 116
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Basin wide percent of average 87 117
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.8 3.0 160 5.8 5.0 116
BIG GOOSE 7990 4.6 5.3 87 7.6 4.9 155
BONE SPRINGS DIV 9350 8.0 9.4 85 11.1 8.5 131
BURGESS JUNCTION 7880 5.3 6.6 80 7.4 7.0 106
CLOUD PEAK RESERVOIR 9860 7.3 7.1 103 8.8 7.4 119
DOME LAKE 8880 5.3 7.1 75 8.7 7.8 112
GRAVE SPRINGS 8550 4.3 5.0 86 5.9 5.8 102
HANSEN SAWMILL 8360 3.7 3.8 97 5.9 4.8 123
MIDDLE POWDER 7760 5.1 6.4 80 5.4 7.6 71
POWDER RIVER PASS 9480 6.5 6.4 102 8.4 7.2 117
SUCKER CREEK 8880 6.0 6.4 94 8.0 7.8 103
TIE CREEK 6870 2.4 3.6 67 6.4 6.0 107
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Basin wide percent of average 90 112
BELLE FOURCHE
BLIND PARK 6890 2.5 4.6 54 5.0 7.1 70
COLE CANYON 5910 2.1 3.9 54 3.6 4.3 84
NORTH RAPID CREEK 6130 3.4 4.1 83 3.9 5.8 67
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Basin wide percent of average 63 73
UPPER N. PLATTE RIVER
COLUMBINE 9160 12.3 13.2 93 14.8 14.3 103
DIVIDE PEAK 8880 13.0 11.3 115 13.3 12.0 111
ELK RIVER 8700 11.4 9.8 116 12.9 11.0 117
JOE WRIGHT 10120 12.4 11.8 105 15.2 14.2 107
NORTH FRENCH CREEK 10130 17.3 16.1 107 17.7 14.4 123
OLD BATTLE 10000 17.0 17.3 98 20.4 19.5 105
SAGE CREEK BASIN 7850 9.2 6.6 139 10.6 7.0 151
SOUTH BRUSH CREEK 8440 7.3 6.3 116 10.4 9.4 111
TOWER 10500 21.1 25.5 83 21.8 22.0 99
WEBBER SPRINGS 9250 12.8 13.8 93 15.8 15.9 99
WILLOW CREEK PASS 9540 8.5 6.5 131 9.5 7.4 128
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Basin wide percent of average 103 110
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 11.0 13.2 83 12.2 12.5 98
CASPER MTN. 7900 5.5 8.0 69 7.9 8.1 98
DEADMAN HILL 10220 9.2 9.2 100 9.4 9.3 101
DEER PARK 9700 7.7 9.6 80 11.3 12.8 88
LAPRELE CREEK 8375 2.5 6.4 39 5.3 7.3 73
RENO HILL 8400 6.1 7.6 80 7.8 8.4 93
ROACH 9700 10.9 9.2 118 12.9 10.2 126
SAND LAKE 10050 14.7 17.6 84 14.9 14.1 106
SOUTH PASS 9040 6.6 9.9 67 9.6 10.7 90
WINDY PEAK 7900 3.4 3.9 87 5.2 6.3 83
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Basin wide percent of average 82 97
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 7.9 6.1 130 9.9 8.7 114
DIVIDE PEAK 8880 13.0 11.3 115 13.3 12.0 111
OLD BATTLE 10000 17.0 17.3 98 20.4 19.5 105
SANDSTONE RS 8150 8.4 7.6 111 11.9 10.9 109
WHISKEY PARK 8950 15.2 14.9 102 19.1 16.8 114
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Basin wide percent of average 108 110
UPPER GREEN RIVER
BIG SANDY OPENING 9080 6.7 8.3 81 7.3 7.9 92
BLIND BULL SUM 8650 12.3 16.0 77 10.5 13.5 78
EAST RIM DIVIDE 7930 3.5 7.2 49 6.1 7.0 87
ELKHART PARK G.S. 9400 5.5 7.6 72 6.7 7.9 85
GROS VENTRE SUMMIT 8750 7.7 8.3 93 9.1 7.6 120
GUNSIGHT PASS 9820 4.9 -M * 8.8 -M *
KENDALL R.S. 7740 5.1 8.4 61 7.4 8.5 87
LOOMIS PARK 8240 7.5 9.7 77 9.1 10.2 89
NEW FORK LAKE 8340 4.4 6.6 67 5.2 7.0 74
SNIDER BASIN 8060 5.4 8.4 64 6.9 9.7 71
SPRING CREEK DIVIDE 9000 11.0 15.0 73 11.7 16.1 73
TRIPLE PEAK 8500 11.4 14.4 79 14.4 14.0 103
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Basin wide percent of average 73 86
LOWER GREEN RIVER
HAMS FORK 7840 4.7 7.0 67 5.3 7.3 73
HEWINTA 9519 4.8 5.4 89 9.7 8.2 118
HICKERSON PARK 9145 2.6 3.7 70 5.1 4.7 109
HOLE-IN-ROCK 9150 2.1 3.4 62 5.6 4.3 130
INDIAN CREEK 9425 10.5 15.2 69 10.3 14.8 70
KELLEY R.S. 8180 6.5 9.2 71 9.1 12.3 74
STEEL CREEK PARK 10200 6.6 8.0 82 10.8 8.9 121
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Basin wide percent of average 73 92
UPPER BEAR RIVER
BUG LAKE 7950 7.7 10.9 71 8.7 11.2 78
HAYDEN FORK 9212 8.9 8.1 110 12.3 11.9 103
KELLEY R.S. 8180 6.5 9.2 71 9.1 12.3 74
LILY LAKE 9156 6.6 6.8 97 9.7 10.1 96
MONTE CRISTO 8960 13.7 14.7 93 14.4 14.6 99
SALT RIVER SUMMIT 7760 5.2 7.3 71 7.5 11.0 68
TRIAL LAKE 9992 -M 13.1 * -M 13.7 *
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Basin wide percent of average 85 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.