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 22 , 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 10.3 11.3 91 16.8 13.6 124
COTTONWOOD CREEK 7670 11.6 12.9 90 14.5 17.3 84
GRAND TARGHEE 9260 28.1 -M * 21.1 -M *
GRANITE CREEK 6770 9.0 10.9 83 14.7 12.5 118
GRASSY LAKE 7265 17.1 20.4 84 25.4 22.8 111
GROS VENTRE SUMMIT 8750 7.9 8.7 91 9.4 8.0 118
GUNSIGHT PASS 9820 5.2 -M * 9.1 -M *
LEWIS LAKE DIVIDE 7850 17.9 20.4 88 23.4 22.7 103
PHILLIPS BENCH 8200 16.1 16.7 96 19.7 17.8 111
SALT RIVER SUMMIT 7760 5.7 8.0 71 8.0 11.6 69
SNAKE RIVER STATION 6920 8.8 11.0 80 17.0 14.2 120
SPRING CREEK DIVIDE 9000 11.5 15.8 73 12.2 16.9 72
THUMB DIVIDE 7980 8.6 10.4 83 12.0 11.7 103
TOGWOTEE PASS 9580 16.5 15.3 108 18.4 15.4 119
TWO OCEAN PLATEAU 9240 22.0 17.2 128 19.3 17.0 114
WILLOW CREEK 8380 15.7 18.4 85 21.3 20.0 106
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Basin wide percent of average 91 105
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 15.0 14.8 101 14.4 12.8 112
BLACK BEAR 8170 26.5 23.4 113 26.7 23.5 114
CANYON 7870 10.0 8.1 123 13.0 9.9 131
FISHER CREEK 9100 25.6 21.7 118 -M 22.5 *
MADISON PLATEAU 7750 16.3 14.9 109 19.7 15.9 124
NORTHEAST ENTRANCE 7350 4.4 6.9 64 8.6 8.1 106
PARKER PEAK 9400 15.3 13.5 113 13.4 10.2 131
SYLVAN LAKE 8420 12.5 13.7 91 17.1 13.6 126
THUMB DIVIDE 7980 8.6 10.4 83 12.0 11.7 103
TWO OCEAN PLATEAU 9240 22.0 17.2 128 19.3 17.0 114
WHISKEY CREEK 6800 10.2 10.1 101 15.9 12.6 126
WHITE MILL 8700 15.9 14.7 108 -M 16.6 *
WOLVERINE 7650 5.1 7.8 65 8.3 8.5 98
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Basin wide percent of average 106 117
WIND RIVER
BURROUGHS CREEK 8750 9.5 9.2 103 12.2 10.4 117
COLD SPRINGS 9630 3.1 5.6 55 6.1 6.7 91
DEER PARK 9700 8.4 11.0 76 12.0 13.4 90
HOBBS PARK 10100 6.8 9.2 74 7.8 7.6 103
LITTLE WARM 9370 5.6 7.1 79 8.4 8.5 99
SOUTH PASS 9040 7.0 10.4 67 10.2 11.2 91
ST. LAWRENCE ALT 8620 2.9 4.5 64 5.0 5.3 94
TOGWOTEE PASS 9580 16.5 15.3 108 18.4 15.4 119
TOWNSEND CREEK 8700 3.7 5.2 71 7.3 6.9 106
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Basin wide percent of average 82 102
BIGHORN BASIN
BALD MTN. 9380 9.9 12.4 80 10.0 10.9 92
BEAR TRAP MEADOW 8200 5.1 3.2 159 6.1 5.2 117
BLACKWATER 9780 14.4 15.0 96 13.7 13.1 105
BONE SPRINGS DIV 9350 9.3 9.8 95 11.6 8.9 130
EVENING STAR 9200 16.7 18.0 93 19.7 16.2 122
GRAVE SPRINGS 8550 4.9 5.3 92 6.0 6.1 98
KIRWIN 9550 7.6 7.2 106 8.8 7.1 124
MARQUETTE 8760 1.8 5.6 32 6.1 5.9 103
MIDDLE POWDER 7760 5.7 6.7 85 5.7 7.8 73
OWL CREEK 8975 3.2 3.2 100 4.8 3.4 141
POWDER RIVER PASS 9480 7.2 6.7 107 9.0 7.6 118
SHELL CREEK 9580 9.9 9.1 109 10.2 8.5 120
SYLVAN LAKE 8420 12.5 13.7 91 17.1 13.6 126
SYLVAN ROAD 7120 6.2 8.1 77 14.5 12.4 117
TIMBER CREEK 7950 1.7 3.4 50 5.9 4.2 140
YOUNTS PEAK 8350 9.9 10.8 92 11.5 10.5 110
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Basin wide percent of average 91 114
SHOSHONE RIVER
BLACKWATER 9780 14.4 15.0 96 13.7 13.1 105
EVENING STAR 9200 16.7 18.0 93 19.7 16.2 122
KIRWIN 9550 7.6 7.2 106 8.8 7.1 124
MARQUETTE 8760 1.8 5.6 32 6.1 5.9 103
SYLVAN LAKE 8420 12.5 13.7 91 17.1 13.6 126
SYLVAN ROAD 7120 6.2 8.1 77 14.5 12.4 117
YOUNTS PEAK 8350 9.9 10.8 92 11.5 10.5 110
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Basin wide percent of average 88 116
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.1 3.2 159 6.1 5.2 117
BIG GOOSE 7990 4.7 5.5 85 7.7 5.0 154
BONE SPRINGS DIV 9350 9.3 9.8 95 11.6 8.9 130
BURGESS JUNCTION 7880 6.6 6.8 97 8.5 7.3 116
CLOUD PEAK RESERVOIR 9860 8.2 7.4 111 9.4 7.7 122
DOME LAKE 8880 5.8 7.4 78 9.5 8.1 117
GRAVE SPRINGS 8550 4.9 5.3 92 6.0 6.1 98
HANSEN SAWMILL 8360 3.7 3.9 95 5.8 5.0 116
MIDDLE POWDER 7760 5.7 6.7 85 5.7 7.8 73
POWDER RIVER PASS 9480 7.2 6.7 107 9.0 7.6 118
SUCKER CREEK 8880 7.4 6.6 112 9.0 8.1 111
TIE CREEK 6870 3.3 3.7 89 7.8 6.3 124
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Basin wide percent of average 98 116
BELLE FOURCHE
BLIND PARK 6890 3.4 4.8 71 6.2 7.3 85
COLE CANYON 5910 2.7 4.1 66 4.3 4.4 98
NORTH RAPID CREEK 6130 3.9 4.4 89 4.3 6.0 72
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Basin wide percent of average 75 84
UPPER N. PLATTE RIVER
COLUMBINE 9160 13.1 14.3 92 15.9 15.2 105
DIVIDE PEAK 8880 13.9 11.9 117 14.2 12.6 113
ELK RIVER 8700 12.6 10.6 119 13.8 11.6 119
JOE WRIGHT 10120 13.0 12.5 104 15.4 14.9 103
NORTH FRENCH CREEK 10130 18.7 16.9 111 19.1 15.1 126
OLD BATTLE 10000 18.4 18.2 101 22.2 20.5 108
SAGE CREEK BASIN 7850 10.0 6.9 145 11.3 7.3 155
SOUTH BRUSH CREEK 8440 7.8 6.7 116 11.0 9.9 111
TOWER 10500 22.2 27.0 82 22.8 23.2 98
WEBBER SPRINGS 9250 14.0 14.5 97 17.0 16.7 102
WILLOW CREEK PASS 9540 9.4 6.9 136 9.8 7.7 127
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Basin wide percent of average 105 112
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 11.7 13.9 84 12.8 13.1 98
CASPER MTN. 7900 6.2 8.3 75 8.6 8.4 102
DEADMAN HILL 10220 9.7 9.7 100 10.0 9.8 102
DEER PARK 9700 8.4 11.0 76 12.0 13.4 90
LAPRELE CREEK 8375 -M 6.7 * -M 7.6 *
RENO HILL 8400 6.6 7.9 84 8.4 8.7 97
ROACH 9700 11.4 9.8 116 13.7 10.7 128
SAND LAKE 10050 16.0 18.4 87 16.2 14.7 110
SOUTH PASS 9040 7.0 10.4 67 10.2 11.2 91
WINDY PEAK 7900 4.0 4.1 98 5.9 6.5 91
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Basin wide percent of average 87 101
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.0 6.7 134 10.9 9.1 120
DIVIDE PEAK 8880 13.9 11.9 117 14.2 12.6 113
OLD BATTLE 10000 18.4 18.2 101 22.2 20.5 108
SANDSTONE RS 8150 9.9 8.3 119 13.2 11.5 115
WHISKEY PARK 8950 16.6 16.2 102 20.4 17.8 115
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Basin wide percent of average 111 113
UPPER GREEN RIVER
BIG SANDY OPENING 9080 7.2 8.7 83 7.6 8.3 92
BLIND BULL SUM 8650 12.8 16.8 76 10.9 14.1 77
EAST RIM DIVIDE 7930 3.7 7.6 49 6.3 7.4 85
ELKHART PARK G.S. 9400 5.8 8.0 72 7.0 8.3 84
GROS VENTRE SUMMIT 8750 7.9 8.7 91 9.4 8.0 118
GUNSIGHT PASS 9820 5.2 -M * 9.1 -M *
KENDALL R.S. 7740 5.3 8.9 60 7.6 8.9 85
LOOMIS PARK 8240 8.1 10.2 79 9.6 10.8 89
NEW FORK LAKE 8340 4.6 6.9 67 5.2 7.3 71
SNIDER BASIN 8060 5.5 8.8 62 7.0 10.2 69
SPRING CREEK DIVIDE 9000 11.5 15.8 73 12.2 16.9 72
TRIPLE PEAK 8500 11.7 15.2 77 14.7 14.8 99
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Basin wide percent of average 73 85
LOWER GREEN RIVER
HAMS FORK 7840 4.9 7.5 65 5.5 7.7 71
HEWINTA 9519 5.1 5.8 88 9.9 8.5 116
HICKERSON PARK 9145 2.8 3.9 72 5.4 4.9 110
HOLE-IN-ROCK 9150 2.3 3.6 64 5.8 4.5 129
INDIAN CREEK 9425 11.2 16.0 70 10.8 15.5 70
KELLEY R.S. 8180 6.8 9.6 71 9.4 12.8 73
STEEL CREEK PARK 10200 7.2 8.4 86 11.2 9.3 120
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Basin wide percent of average 74 92
UPPER BEAR RIVER
BUG LAKE 7950 8.2 11.7 70 9.1 11.8 77
HAYDEN FORK 9212 9.3 8.7 107 13.0 12.5 104
KELLEY R.S. 8180 6.8 9.6 71 9.4 12.8 73
LILY LAKE 9156 7.0 7.3 96 10.2 10.6 96
MONTE CRISTO 8960 14.3 15.8 91 15.2 15.3 99
SALT RIVER SUMMIT 7760 5.7 8.0 71 8.0 11.6 69
TRIAL LAKE 9992 -M 14.0 * -M 14.5 *
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Basin wide percent of average 84 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.