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 FRIDAY: FEBRUARY 17 , 2006
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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 17.3 14.6 118 21.4 17.0 126
COTTONWOOD CREEK 7600 23.4 16.4 143 25.7 21.2 121
GRANITE CREEK 6770 17.7 14.5 122 19.9 15.8 126
GRASSY LAKE 7265 30.1 26.7 113 33.9 28.4 119
GROS VENTRE SUMMIT 8750 9.6 10.6 91 10.7 9.9 108
LEWIS LAKE DIVIDE 7850 33.1 26.9 123 32.6 28.7 114
PHILLIPS BENCH 8200 25.7 21.5 120 26.8 22.4 120
SALT RIVER SUMMIT 7600 12.8 11.0 116 15.7 14.4 109
SNAKE RIVER STATION 6920 16.9 14.9 113 21.7 17.8 122
SPRING CREEK DIVIDE 9000 26.1 20.1 130 -M 20.7 *
THUMB DIVIDE 7980 14.2 13.8 103 14.8 14.6 101
TOGWOTEE PASS 9580 19.7 19.1 103 20.4 19.0 107
TWO OCEAN PLATEAU 9240 29.2 21.4 136 23.3 21.3 109
WILLOW CREEK 8450 27.9 23.1 121 31.9 24.8 129
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Basin wide percent of average 119 117
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 17.4 18.4 95 15.2 15.8 96
BLACK BEAR 8170 39.5 29.6 133 -M 30.2 *
CANYON 8090 11.8 10.3 115 14.3 12.1 118
FISHER CREEK 9100 32.1 27.0 119 29.7 28.0 106
MADISON PLATEAU 7750 21.2 18.8 113 24.7 20.1 123
NORTHEAST ENTRANCE 7350 8.0 8.9 90 10.2 10.0 102
PARKER PEAK 9400 15.0 16.7 90 13.7 12.6 109
SYLVAN LAKE 8420 13.7 17.0 81 17.2 16.6 104
THUMB DIVIDE 7980 14.2 13.8 103 14.8 14.6 101
TWO OCEAN PLATEAU 9240 29.2 21.4 136 23.3 21.3 109
WHISKEY CREEK 6800 12.6 12.9 98 18.9 15.9 119
WHITE MILL 8700 20.5 18.4 111 18.1 20.8 87
WOLVERINE 7650 8.9 9.8 91 7.3 10.3 71
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Basin wide percent of average 109 105
WIND RIVER
BURROUGHS CREEK 8750 11.2 11.5 97 13.4 12.7 106
COLD SPRINGS 9630 3.7 6.5 57 6.5 7.8 83
DEER PARK 9700 13.5 13.8 98 15.9 16.4 97
HOBBS PARK 10100 8.0 10.9 73 8.5 9.2 92
LITTLE WARM 9370 6.7 8.6 78 9.3 10.1 92
SOUTH PASS 9040 12.9 12.7 102 14.2 13.8 103
ST. LAWRENCE ALT 8620 2.1 5.3 40 4.8 6.4 75
TOGWOTEE PASS 9580 19.7 19.1 103 20.4 19.0 107
TOWNSEND CREEK 8700 4.5 6.4 70 7.7 8.2 94
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Basin wide percent of average 87 97
BIGHORN BASIN
BALD MTN. 9380 11.9 14.7 81 8.9 13.1 68
BEAR TRAP MEADOW 8200 4.3 4.0 108 6.3 6.0 105
BLACKWATER 9780 17.7 18.6 95 16.0 15.9 101
BONE SPRINGS DIV 9350 10.1 11.9 85 9.6 10.7 90
EVENING STAR 9200 20.0 22.7 88 22.2 20.0 111
GRAVE SPRINGS 8550 7.4 6.6 112 9.5 7.2 132
KIRWIN 9550 7.9 8.4 94 8.4 8.5 99
MARQUETTE 8760 1.8 6.4 28 5.6 6.9 81
MIDDLE POWDER 7760 10.1 8.2 123 8.7 9.0 97
OWL CREEK 8975 2.1 3.8 55 3.8 4.1 93
POWDER RIVER PASS 9480 7.7 8.0 96 8.6 9.3 92
SHELL CREEK 9580 10.1 10.9 93 9.6 10.2 94
SYLVAN LAKE 8420 13.7 17.0 81 17.2 16.6 104
SYLVAN ROAD 7120 8.7 10.4 84 12.7 14.6 87
TIMBER CREEK 7950 1.2 3.9 31 4.3 5.0 86
YOUNTS PEAK 8350 -M 13.4 * 13.7 12.7 108
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Basin wide percent of average 87 97
SHOSHONE RIVER
BLACKWATER 9780 17.7 18.6 95 16.0 15.9 101
EVENING STAR 9200 20.0 22.7 88 22.2 20.0 111
KIRWIN 9550 7.9 8.4 94 8.4 8.5 99
MARQUETTE 8760 1.8 6.4 28 5.6 6.9 81
SYLVAN LAKE 8420 13.7 17.0 81 17.2 16.6 104
SYLVAN ROAD 7120 8.7 10.4 84 12.7 14.6 87
YOUNTS PEAK 8350 -M 13.4 * 13.7 12.7 108
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Basin wide percent of average 84 101
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.3 4.0 108 6.3 6.0 105
BIG GOOSE 7990 4.4 6.9 64 6.6 6.3 105
BONE SPRINGS DIV 9350 10.1 11.9 85 9.6 10.7 90
BURGESS JUNCTION 7880 7.3 8.2 89 8.3 8.8 94
CLOUD PEAK RESERVOIR 9860 9.7 9.1 107 8.6 9.1 95
DOME LAKE 8880 7.6 8.8 86 8.6 9.6 90
GRAVE SPRINGS 8550 7.4 6.6 112 9.5 7.2 132
HANSEN SAWMILL 8360 2.7 4.7 57 4.7 5.9 80
MIDDLE POWDER 7760 10.1 8.2 123 8.7 9.0 97
POWDER RIVER PASS 9480 7.7 8.0 96 8.6 9.3 92
SUCKER CREEK 8880 7.8 8.2 95 10.4 9.8 106
TIE CREEK 6870 3.9 4.6 85 7.9 7.4 107
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Basin wide percent of average 93 99
BELLE FOURCHE
BLIND PARK 6890 6.1 6.1 100 8.5 8.7 98
COLE CANYON 5910 3.7 4.6 80 7.5 -M *
NORTH RAPID CREEK 6130 5.1 6.0 85 6.8 7.0 97
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Basin wide percent of average 89 97
UPPER N. PLATTE RIVER
COLUMBINE 9160 25.9 19.7 131 27.6 19.1 145
DIVIDE PEAK 8860 14.0 14.3 98 16.1 15.6 103
ELK RIVER 8700 16.1 14.5 111 16.9 14.6 116
JOE WRIGHT 10120 17.5 15.8 111 21.3 18.5 115
NORTH FRENCH CREEK 10130 27.4 20.6 133 26.4 18.6 142
OLD BATTLE 9920 29.7 23.5 126 33.2 25.9 128
SAGE CREEK BASIN 7850 9.6 8.3 116 11.9 9.0 132
SOUTH BRUSH CREEK 8440 9.8 8.8 111 13.6 12.3 111
TOWER 10500 42.4 34.3 124 -M 29.1 *
WEBBER SPRINGS 9250 21.3 18.8 113 26.8 20.3 132
WILLOW CREEK PASS 9540 9.7 8.7 111 10.5 9.5 111
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Basin wide percent of average 119 125
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 19.6 17.4 113 16.3 16.1 101
CASPER MTN. 7850 13.3 10.3 129 14.4 10.2 141
DEADMAN HILL 10220 12.2 11.9 103 13.7 12.1 113
DEER PARK 9700 13.5 13.8 98 15.9 16.4 97
LAPRELE CREEK 8375 8.0 8.1 99 8.7 9.2 95
RENO HILL 8500 12.7 9.5 134 13.9 10.6 131
ROACH 9700 11.9 12.7 94 14.7 13.5 109
SAND LAKE 10050 25.5 22.6 113 24.3 17.8 137
SOUTH PASS 9040 12.9 12.7 102 14.2 13.8 103
WINDY PEAK 7900 5.4 5.4 100 7.4 7.9 94
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Basin wide percent of average 109 112
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 10.4 8.8 118 12.9 11.3 114
DIVIDE PEAK 8860 14.0 14.3 98 16.1 15.6 103
OLD BATTLE 9920 29.7 23.5 126 33.2 25.9 128
SANDSTONE RS 8150 12.1 11.3 107 17.5 14.3 122
WHISKEY PARK 8950 29.8 21.5 139 29.4 21.7 135
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Basin wide percent of average 121 123
UPPER GREEN RIVER
BIG SANDY OPENING 9080 11.9 11.0 108 12.1 10.3 117
BLIND BULL SUM 8900 23.1 21.0 110 17.8 17.5 102
EAST RIM DIVIDE 7930 8.9 9.9 90 9.5 9.3 102
ELKHART PARK G.S. 9400 11.1 10.1 110 11.9 10.0 119
GROS VENTRE SUMMIT 8750 9.6 10.6 91 10.7 9.9 108
KENDALL R.S. 7740 11.7 11.2 104 12.8 11.3 113
LOOMIS PARK 8240 15.3 13.0 118 16.0 13.5 119
NEW FORK LAKE 8340 8.8 8.7 101 8.5 8.9 96
SNIDER BASIN 8060 14.5 11.3 128 14.0 12.6 111
SPRING CREEK DIVIDE 9000 26.1 20.1 130 -M 20.7 *
TRIPLE PEAK 8500 24.8 18.9 131 25.3 18.8 135
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Basin wide percent of average 114 114
LOWER GREEN RIVER
HAMS FORK 7840 12.4 9.8 127 11.7 9.5 123
HEWINTA 9500 9.1 8.0 114 12.2 10.6 115
HICKERSON PARK 9100 3.0 5.2 58 5.4 5.8 93
HOLE-IN-ROCK 9150 5.2 5.0 104 6.2 5.4 115
INDIAN CREEK 9425 25.4 20.1 126 -M 19.3 *
KELLEY R.S. 8180 16.6 12.5 133 18.2 15.8 115
STEEL CREEK PARK 10100 12.2 11.2 109 13.6 11.7 116
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Basin wide percent of average 117 114
UPPER BEAR RIVER
BUG LAKE 7950 20.3 15.4 132 17.6 14.8 119
HAYDEN FORK 9100 16.5 11.7 141 19.6 15.6 126
KELLEY R.S. 8180 16.6 12.5 133 18.2 15.8 115
LILY LAKE 9050 11.6 9.7 120 13.1 13.1 100
MONTE CRISTO 8960 25.7 21.9 117 24.8 19.2 129
SALT RIVER SUMMIT 7600 12.8 11.0 116 15.7 14.4 109
TRIAL LAKE 9960 23.3 18.4 127 23.0 18.5 124
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Basin wide percent of average 126 118
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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 1971-2000.
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.