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: FEBRUARY 18 , 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 14.7 118 21.5 17.1 126
COTTONWOOD CREEK 7600 23.4 16.5 142 25.7 21.3 121
GRANITE CREEK 6770 17.7 14.6 121 19.9 15.9 125
GRASSY LAKE 7265 30.1 26.9 112 33.9 28.6 119
GROS VENTRE SUMMIT 8750 9.6 10.6 91 10.9 10.0 109
LEWIS LAKE DIVIDE 7850 33.1 27.1 122 32.6 28.9 113
PHILLIPS BENCH 8200 25.6 21.7 118 26.8 22.6 119
SALT RIVER SUMMIT 7600 12.8 11.1 115 15.7 14.5 108
SNAKE RIVER STATION 6920 16.8 15.0 112 21.7 18.0 121
SPRING CREEK DIVIDE 9000 26.0 20.2 129 -M 20.9 *
THUMB DIVIDE 7980 14.1 13.9 101 14.4 14.7 98
TOGWOTEE PASS 9580 19.7 19.2 103 20.4 19.2 106
TWO OCEAN PLATEAU 9240 29.2 21.6 135 23.3 21.5 108
WILLOW CREEK 8450 27.9 23.3 120 31.9 25.0 128
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Basin wide percent of average 118 116
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 17.3 18.5 94 15.1 15.9 95
BLACK BEAR 8170 39.4 29.9 132 -M 30.5 *
CANYON 8090 12.0 10.4 115 14.1 12.1 117
FISHER CREEK 9100 32.1 27.2 118 29.7 28.2 105
MADISON PLATEAU 7750 21.1 19.0 111 24.6 20.3 121
NORTHEAST ENTRANCE 7350 8.0 9.0 89 10.2 10.1 101
PARKER PEAK 9400 15.0 16.8 89 13.7 12.7 108
SYLVAN LAKE 8420 13.7 17.1 80 17.3 16.7 104
THUMB DIVIDE 7980 14.1 13.9 101 14.4 14.7 98
TWO OCEAN PLATEAU 9240 29.2 21.6 135 23.3 21.5 108
WHISKEY CREEK 6800 12.5 13.1 95 18.9 16.0 118
WHITE MILL 8700 20.4 18.6 110 17.8 21.0 85
WOLVERINE 7650 9.1 9.9 92 7.5 10.4 72
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Basin wide percent of average 108 104
WIND RIVER
BURROUGHS CREEK 8750 11.1 11.6 96 13.4 12.8 105
COLD SPRINGS 9630 3.8 6.6 58 6.6 7.9 84
DEER PARK 9700 13.5 13.8 98 15.9 16.5 96
HOBBS PARK 10100 8.0 11.0 73 8.5 9.2 92
LITTLE WARM 9370 6.8 8.7 78 9.6 10.2 94
SOUTH PASS 9040 12.9 12.8 101 14.1 13.9 101
ST. LAWRENCE ALT 8620 2.0 5.4 37 4.8 6.5 74
TOGWOTEE PASS 9580 19.7 19.2 103 20.4 19.2 106
TOWNSEND CREEK 8700 4.4 6.4 69 7.8 8.3 94
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Basin wide percent of average 86 97
BIGHORN BASIN
BALD MTN. 9380 11.9 14.8 80 8.9 13.2 67
BEAR TRAP MEADOW 8200 4.4 4.0 110 6.3 6.0 105
BLACKWATER 9780 17.6 18.8 94 15.8 16.0 99
BONE SPRINGS DIV 9350 10.2 12.0 85 9.6 10.8 89
EVENING STAR 9200 20.0 22.9 87 22.2 20.2 110
GRAVE SPRINGS 8550 7.3 6.7 109 9.6 7.2 133
KIRWIN 9550 7.9 8.5 93 8.4 8.6 98
MARQUETTE 8760 2.6 6.4 41 5.8 7.0 83
MIDDLE POWDER 7760 10.1 8.3 122 8.8 9.1 97
OWL CREEK 8975 2.1 3.8 55 3.9 4.1 95
POWDER RIVER PASS 9480 7.7 8.1 95 9.0 9.3 97
SHELL CREEK 9580 10.1 10.9 93 9.6 10.2 94
SYLVAN LAKE 8420 13.7 17.1 80 17.3 16.7 104
SYLVAN ROAD 7120 8.7 10.5 83 12.6 14.7 86
TIMBER CREEK 7950 1.1 4.0 28 4.3 5.0 86
YOUNTS PEAK 8350 -M 13.5 * 14.0 12.7 110
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Basin wide percent of average 86 97
SHOSHONE RIVER
BLACKWATER 9780 17.6 18.8 94 15.8 16.0 99
EVENING STAR 9200 20.0 22.9 87 22.2 20.2 110
KIRWIN 9550 7.9 8.5 93 8.4 8.6 98
MARQUETTE 8760 2.6 6.4 41 5.8 7.0 83
SYLVAN LAKE 8420 13.7 17.1 80 17.3 16.7 104
SYLVAN ROAD 7120 8.7 10.5 83 12.6 14.7 86
YOUNTS PEAK 8350 -M 13.5 * 14.0 12.7 110
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Basin wide percent of average 84 100
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.4 4.0 110 6.3 6.0 105
BIG GOOSE 7990 4.4 7.0 63 6.6 6.4 103
BONE SPRINGS DIV 9350 10.2 12.0 85 9.6 10.8 89
BURGESS JUNCTION 7880 7.3 8.3 88 8.5 8.9 96
CLOUD PEAK RESERVOIR 9860 -M 9.1 * 8.5 9.2 92
DOME LAKE 8880 7.6 8.9 85 8.7 9.6 91
GRAVE SPRINGS 8550 7.3 6.7 109 9.6 7.2 133
HANSEN SAWMILL 8360 2.7 4.7 57 4.7 5.9 80
MIDDLE POWDER 7760 10.1 8.3 122 8.8 9.1 97
POWDER RIVER PASS 9480 7.7 8.1 95 9.0 9.3 97
SUCKER CREEK 8880 7.8 8.3 94 10.5 9.8 107
TIE CREEK 6870 4.0 4.6 87 8.1 7.5 108
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Basin wide percent of average 91 99
BELLE FOURCHE
BLIND PARK 6890 6.1 6.2 98 9.0 8.7 103
COLE CANYON 5910 3.6 4.6 78 8.5 -M *
NORTH RAPID CREEK 6130 5.2 6.1 85 7.2 7.0 103
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Basin wide percent of average 88 103
UPPER N. PLATTE RIVER
COLUMBINE 9160 25.8 19.9 130 27.7 19.2 144
DIVIDE PEAK 8860 14.0 14.4 97 16.8 15.7 107
ELK RIVER 8700 16.1 14.6 110 16.9 14.8 114
JOE WRIGHT 10120 17.6 15.9 111 21.3 18.6 115
NORTH FRENCH CREEK 10130 27.5 20.8 132 26.4 18.7 141
OLD BATTLE 9920 29.7 23.7 125 33.3 26.1 128
SAGE CREEK BASIN 7850 9.9 8.4 118 11.9 9.1 131
SOUTH BRUSH CREEK 8440 9.9 8.9 111 13.6 12.4 110
TOWER 10500 42.5 34.6 123 -M 29.3 *
WEBBER SPRINGS 9250 21.3 19.0 112 26.8 20.5 131
WILLOW CREEK PASS 9540 9.8 8.7 113 10.7 9.6 111
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Basin wide percent of average 119 125
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 19.7 17.5 113 16.4 16.2 101
CASPER MTN. 7850 13.3 10.4 128 14.2 10.2 139
DEADMAN HILL 10220 12.3 12.0 103 13.8 12.2 113
DEER PARK 9700 13.5 13.8 98 15.9 16.5 96
LAPRELE CREEK 8375 7.9 8.2 96 8.7 9.3 94
RENO HILL 8500 12.8 9.5 135 13.8 10.6 130
ROACH 9700 11.9 12.8 93 14.7 13.6 108
SAND LAKE 10050 25.5 22.8 112 24.3 18.0 135
SOUTH PASS 9040 12.9 12.8 101 14.1 13.9 101
WINDY PEAK 7900 5.4 5.5 98 7.6 7.9 96
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Basin wide percent of average 108 112
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 10.6 8.9 119 13.0 11.4 114
DIVIDE PEAK 8860 14.0 14.4 97 16.8 15.7 107
OLD BATTLE 9920 29.7 23.7 125 33.3 26.1 128
SANDSTONE RS 8150 12.1 11.4 106 17.5 14.4 122
WHISKEY PARK 8950 29.9 21.7 138 29.4 21.8 135
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Basin wide percent of average 120 123
UPPER GREEN RIVER
BIG SANDY OPENING 9080 11.9 11.1 107 12.2 10.4 117
BLIND BULL SUM 8900 23.0 21.1 109 17.7 17.6 101
EAST RIM DIVIDE 7930 8.9 10.0 89 9.7 9.4 103
ELKHART PARK G.S. 9400 11.1 10.2 109 11.9 10.1 118
GROS VENTRE SUMMIT 8750 9.6 10.6 91 10.9 10.0 109
KENDALL R.S. 7740 11.5 11.3 102 13.1 11.4 115
LOOMIS PARK 8240 15.4 13.1 118 16.0 13.6 118
NEW FORK LAKE 8340 8.8 8.8 100 8.5 8.9 96
SNIDER BASIN 8060 14.7 11.4 129 14.0 12.7 110
SPRING CREEK DIVIDE 9000 26.0 20.2 129 -M 20.9 *
TRIPLE PEAK 8500 24.8 19.1 130 25.2 18.9 133
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Basin wide percent of average 113 113
LOWER GREEN RIVER
HAMS FORK 7840 12.3 9.9 124 11.6 9.6 121
HEWINTA 9500 9.1 8.1 112 12.2 10.7 114
HICKERSON PARK 9100 2.8 5.2 54 5.4 5.8 93
HOLE-IN-ROCK 9150 5.2 5.1 102 6.2 5.4 115
INDIAN CREEK 9425 25.4 20.3 125 -M 19.4 *
KELLEY R.S. 8180 16.5 12.6 131 18.2 15.9 114
STEEL CREEK PARK 10100 12.3 11.3 109 13.7 11.8 116
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Basin wide percent of average 115 114
UPPER BEAR RIVER
BUG LAKE 7950 20.3 15.5 131 17.6 14.9 118
HAYDEN FORK 9100 -M 11.8 * -M 15.7 *
KELLEY R.S. 8180 16.5 12.6 131 18.2 15.9 114
LILY LAKE 9050 11.6 9.8 118 13.1 13.2 99
MONTE CRISTO 8960 25.8 22.1 117 24.8 19.4 128
SALT RIVER SUMMIT 7600 12.8 11.1 115 15.7 14.5 108
TRIAL LAKE 9960 23.3 18.6 125 23.0 18.7 123
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Basin wide percent of average 123 116
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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.