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 SATURDAY: JANUARY 19 , 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 9.9 10.9 91 16.4 13.1 125
COTTONWOOD CREEK 7670 11.4 12.4 92 14.3 16.8 85
GRAND TARGHEE 9260 27.1 -M * 20.5 -M *
GRANITE CREEK 6770 8.5 10.4 82 14.2 12.1 117
GRASSY LAKE 7265 16.2 19.6 83 24.2 22.1 110
GROS VENTRE SUMMIT 8750 7.7 8.5 91 9.1 7.7 118
GUNSIGHT PASS 9820 5.0 -M * 8.9 -M *
LEWIS LAKE DIVIDE 7850 16.9 19.6 86 22.9 22.0 104
PHILLIPS BENCH 8200 15.4 16.1 96 19.3 17.2 112
SALT RIVER SUMMIT 7760 5.5 7.6 72 7.8 11.2 70
SNAKE RIVER STATION 6920 8.5 10.6 80 16.4 13.8 119
SPRING CREEK DIVIDE 9000 11.2 15.3 73 12.0 16.4 73
THUMB DIVIDE 7980 8.3 10.0 83 11.8 11.4 104
TOGWOTEE PASS 9580 16.1 14.8 109 18.0 15.0 120
TWO OCEAN PLATEAU 9240 21.4 16.7 128 18.9 16.5 115
WILLOW CREEK 8380 15.2 17.8 85 20.7 19.4 107
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Basin wide percent of average 90 105
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 14.9 14.6 102 14.3 12.4 115
BLACK BEAR 8170 25.0 22.5 111 25.7 22.8 113
CANYON 7870 9.2 7.9 116 12.3 9.6 128
FISHER CREEK 9100 24.7 21.2 117 -M 21.8 *
MADISON PLATEAU 7750 15.4 14.4 107 19.0 15.4 123
NORTHEAST ENTRANCE 7350 4.1 6.8 60 8.2 7.9 104
PARKER PEAK 9400 14.6 13.3 110 13.6 9.9 137
SYLVAN LAKE 8420 11.5 13.3 86 15.8 13.2 120
THUMB DIVIDE 7980 8.3 10.0 83 11.8 11.4 104
TWO OCEAN PLATEAU 9240 21.4 16.7 128 18.9 16.5 115
WHISKEY CREEK 6800 9.3 9.7 96 15.1 12.3 123
WHITE MILL 8700 15.3 14.4 106 -M 16.0 *
WOLVERINE 7650 4.6 7.6 61 8.1 8.3 98
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Basin wide percent of average 103 117
WIND RIVER
BURROUGHS CREEK 8750 9.3 9.1 102 12.0 10.1 119
COLD SPRINGS 9630 3.0 5.6 54 5.9 6.6 89
DEER PARK 9700 7.8 10.4 75 11.4 13.0 88
HOBBS PARK 10100 6.6 9.1 73 7.7 7.5 103
LITTLE WARM 9370 5.3 7.0 76 8.2 8.2 100
SOUTH PASS 9040 6.5 10.2 64 9.7 10.9 89
ST. LAWRENCE ALT 8620 2.8 4.4 64 4.7 5.2 90
TOGWOTEE PASS 9580 16.1 14.8 109 18.0 15.0 120
TOWNSEND CREEK 8700 3.6 5.2 69 7.0 6.8 103
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Basin wide percent of average 80 102
BIGHORN BASIN
BALD MTN. 9380 9.2 12.1 76 9.6 10.5 91
BEAR TRAP MEADOW 8200 4.9 3.1 158 5.8 5.1 114
BLACKWATER 9780 14.0 14.8 95 13.3 12.8 104
BONE SPRINGS DIV 9350 8.9 9.6 93 11.5 8.7 132
EVENING STAR 9200 16.1 17.6 91 18.9 15.8 120
GRAVE SPRINGS 8550 4.8 5.1 94 5.9 5.9 100
KIRWIN 9550 7.5 7.1 106 9.1 7.0 130
MARQUETTE 8760 1.8 5.6 32 6.1 5.8 105
MIDDLE POWDER 7760 5.6 6.5 86 5.6 7.7 73
OWL CREEK 8975 3.0 3.1 97 4.6 3.4 135
POWDER RIVER PASS 9480 6.8 6.5 105 8.7 7.4 118
SHELL CREEK 9580 9.4 9.0 104 9.6 8.2 117
SYLVAN LAKE 8420 11.5 13.3 86 15.8 13.2 120
SYLVAN ROAD 7120 5.6 7.9 71 13.7 12.1 113
TIMBER CREEK 7950 1.8 3.4 53 5.5 4.2 131
YOUNTS PEAK 8350 9.5 10.5 90 11.5 10.2 113
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Basin wide percent of average 89 112
SHOSHONE RIVER
BLACKWATER 9780 14.0 14.8 95 13.3 12.8 104
EVENING STAR 9200 16.1 17.6 91 18.9 15.8 120
KIRWIN 9550 7.5 7.1 106 9.1 7.0 130
MARQUETTE 8760 1.8 5.6 32 6.1 5.8 105
SYLVAN LAKE 8420 11.5 13.3 86 15.8 13.2 120
SYLVAN ROAD 7120 5.6 7.9 71 13.7 12.1 113
YOUNTS PEAK 8350 9.5 10.5 90 11.5 10.2 113
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Basin wide percent of average 86 115
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.9 3.1 158 5.8 5.1 114
BIG GOOSE 7990 4.6 5.4 85 7.5 4.9 153
BONE SPRINGS DIV 9350 8.9 9.6 93 11.5 8.7 132
BURGESS JUNCTION 7880 6.4 6.7 96 8.2 7.2 114
CLOUD PEAK RESERVOIR 9860 8.1 7.2 112 9.0 7.5 120
DOME LAKE 8880 5.6 7.3 77 9.1 7.9 115
GRAVE SPRINGS 8550 4.8 5.1 94 5.9 5.9 100
HANSEN SAWMILL 8360 3.5 3.8 92 5.6 4.9 114
MIDDLE POWDER 7760 5.6 6.5 86 5.6 7.7 73
POWDER RIVER PASS 9480 6.8 6.5 105 8.7 7.4 118
SUCKER CREEK 8880 7.1 6.5 109 8.7 7.9 110
TIE CREEK 6870 3.1 3.7 84 7.1 6.1 116
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Basin wide percent of average 97 114
BELLE FOURCHE
BLIND PARK 6890 3.0 4.6 65 5.7 7.2 79
COLE CANYON 5910 2.4 3.9 62 4.0 4.4 91
NORTH RAPID CREEK 6130 -M 4.2 * 4.0 5.9 68
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Basin wide percent of average 64 78
UPPER N. PLATTE RIVER
COLUMBINE 9160 12.5 13.7 91 15.1 14.7 103
DIVIDE PEAK 8880 13.3 11.6 115 13.7 12.3 111
ELK RIVER 8700 11.8 10.2 116 13.1 11.2 117
JOE WRIGHT 10120 12.7 12.1 105 15.2 14.5 105
NORTH FRENCH CREEK 10130 17.6 16.4 107 18.1 14.7 123
OLD BATTLE 10000 17.4 17.7 98 21.0 19.9 106
SAGE CREEK BASIN 7850 9.6 6.7 143 10.9 7.1 154
SOUTH BRUSH CREEK 8440 7.5 6.4 117 10.7 9.6 111
TOWER 10500 21.4 26.1 82 22.0 22.5 98
WEBBER SPRINGS 9250 13.1 14.1 93 16.2 16.2 100
WILLOW CREEK PASS 9540 8.7 6.7 130 9.7 7.5 129
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Basin wide percent of average 103 110
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 11.2 13.5 83 12.3 12.7 97
CASPER MTN. 7900 5.9 8.1 73 8.3 8.2 101
DEADMAN HILL 10220 9.4 9.4 100 9.7 9.5 102
DEER PARK 9700 7.8 10.4 75 11.4 13.0 88
LAPRELE CREEK 8375 3.0 6.5 46 5.8 7.4 78
RENO HILL 8400 6.3 7.7 82 8.1 8.5 95
ROACH 9700 11.0 9.4 117 13.0 10.4 125
SAND LAKE 10050 15.0 17.9 84 15.3 14.3 107
SOUTH PASS 9040 6.5 10.2 64 9.7 10.9 89
WINDY PEAK 7900 3.6 4.0 90 5.3 6.4 83
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Basin wide percent of average 82 98
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 8.4 6.4 131 10.4 8.8 118
DIVIDE PEAK 8880 13.3 11.6 115 13.7 12.3 111
OLD BATTLE 10000 17.4 17.7 98 21.0 19.9 106
SANDSTONE RS 8150 8.9 7.9 113 12.4 11.2 111
WHISKEY PARK 8950 15.7 15.4 102 19.3 17.2 112
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Basin wide percent of average 108 111
UPPER GREEN RIVER
BIG SANDY OPENING 9080 6.8 8.4 81 7.3 8.0 91
BLIND BULL SUM 8650 12.5 16.3 77 10.6 13.8 77
EAST RIM DIVIDE 7930 3.7 7.4 50 6.3 7.2 88
ELKHART PARK G.S. 9400 5.6 7.8 72 6.7 8.1 83
GROS VENTRE SUMMIT 8750 7.7 8.5 91 9.1 7.7 118
GUNSIGHT PASS 9820 5.0 -M * 8.9 -M *
KENDALL R.S. 7740 5.2 8.6 60 7.4 8.6 86
LOOMIS PARK 8240 7.7 9.9 78 9.3 10.5 89
NEW FORK LAKE 8340 4.5 6.7 67 5.2 7.1 73
SNIDER BASIN 8060 5.5 8.6 64 7.0 9.9 71
SPRING CREEK DIVIDE 9000 11.2 15.3 73 12.0 16.4 73
TRIPLE PEAK 8500 11.5 14.7 78 14.6 14.3 102
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Basin wide percent of average 73 86
LOWER GREEN RIVER
HAMS FORK 7840 4.9 7.2 68 5.4 7.4 73
HEWINTA 9519 5.1 5.6 91 10.0 8.3 120
HICKERSON PARK 9145 2.9 3.8 76 5.5 4.8 115
HOLE-IN-ROCK 9150 2.3 3.5 66 5.8 4.4 132
INDIAN CREEK 9425 10.8 15.5 70 10.6 15.1 70
KELLEY R.S. 8180 6.8 9.3 73 9.3 12.5 74
STEEL CREEK PARK 10200 7.1 8.2 87 11.1 9.0 123
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Basin wide percent of average 75 94
UPPER BEAR RIVER
BUG LAKE 7950 7.9 11.2 71 8.9 11.5 77
HAYDEN FORK 9212 9.1 8.3 110 12.6 12.2 103
KELLEY R.S. 8180 6.8 9.3 73 9.3 12.5 74
LILY LAKE 9156 6.9 7.0 99 9.9 10.3 96
MONTE CRISTO 8960 13.9 15.1 92 14.8 14.9 99
SALT RIVER SUMMIT 7760 5.5 7.6 72 7.8 11.2 70
TRIAL LAKE 9992 -M 13.5 * -M 14.0 *
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Basin wide percent of average 86 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.