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 SUNDAY: FEBRUARY 19 , 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 17.4 14.9 117 21.5 17.3 124
COTTONWOOD CREEK 7600 23.6 16.7 141 25.8 21.5 120
GRANITE CREEK 6770 17.9 14.7 122 20.0 16.1 124
GRASSY LAKE 7265 30.1 27.1 111 34.0 28.9 118
GROS VENTRE SUMMIT 8750 9.8 10.7 92 10.6 10.1 105
LEWIS LAKE DIVIDE 7850 33.1 27.3 121 32.7 29.1 112
PHILLIPS BENCH 8200 25.8 21.9 118 27.0 22.8 118
SALT RIVER SUMMIT 7600 12.9 11.2 115 15.6 14.7 106
SNAKE RIVER STATION 6920 16.9 15.2 111 21.8 18.1 120
SPRING CREEK DIVIDE 9000 26.3 20.4 129 -M 21.0 *
THUMB DIVIDE 7980 14.2 14.0 101 14.9 14.8 101
TOGWOTEE PASS 9580 19.9 19.3 103 20.9 19.3 108
TWO OCEAN PLATEAU 9240 29.3 21.7 135 23.4 21.6 108
WILLOW CREEK 8450 28.2 23.5 120 32.2 25.1 128
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Basin wide percent of average 118 116
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 17.5 18.6 94 15.3 16.0 96
BLACK BEAR 8170 39.6 30.2 131 -M 30.7 *
CANYON 8090 11.9 10.4 114 14.4 12.2 118
FISHER CREEK 9100 32.2 27.5 117 29.8 28.5 105
MADISON PLATEAU 7750 21.3 19.2 111 24.8 20.5 121
NORTHEAST ENTRANCE 7350 8.1 9.1 89 10.2 10.1 101
PARKER PEAK 9400 15.0 16.9 89 13.8 12.8 108
SYLVAN LAKE 8420 13.9 17.3 80 17.8 16.8 106
THUMB DIVIDE 7980 14.2 14.0 101 14.9 14.8 101
TWO OCEAN PLATEAU 9240 29.3 21.7 135 23.4 21.6 108
WHISKEY CREEK 6800 12.6 13.2 95 18.8 16.1 117
WHITE MILL 8700 20.5 18.7 110 17.9 21.1 85
WOLVERINE 7650 8.9 10.0 89 7.7 10.5 73
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Basin wide percent of average 108 104
WIND RIVER
BURROUGHS CREEK 8750 11.4 11.7 97 13.4 12.8 105
COLD SPRINGS 9630 3.9 6.6 59 6.6 7.9 84
DEER PARK 9700 13.6 13.9 98 16.6 16.6 100
HOBBS PARK 10100 8.1 11.0 74 8.7 9.3 94
LITTLE WARM 9370 7.0 8.8 80 9.1 10.3 88
SOUTH PASS 9040 13.1 12.9 102 14.1 14.0 101
ST. LAWRENCE ALT 8620 2.2 5.4 41 4.8 6.5 74
TOGWOTEE PASS 9580 19.9 19.3 103 20.9 19.3 108
TOWNSEND CREEK 8700 4.8 6.5 74 7.8 8.3 94
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Basin wide percent of average 87 97
BIGHORN BASIN
BALD MTN. 9380 11.9 14.9 80 9.1 13.3 68
BEAR TRAP MEADOW 8200 4.4 4.0 110 6.3 6.1 103
BLACKWATER 9780 17.7 18.9 94 16.0 16.1 99
BONE SPRINGS DIV 9350 -M 12.1 * -M 10.9 *
EVENING STAR 9200 20.1 23.1 87 22.4 20.3 110
GRAVE SPRINGS 8550 7.5 6.7 112 9.6 7.3 132
KIRWIN 9550 8.0 8.5 94 8.5 8.6 99
MARQUETTE 8760 -M 6.5 * 5.9 7.0 84
MIDDLE POWDER 7760 10.2 8.4 121 8.7 9.1 96
OWL CREEK 8975 2.2 3.8 58 4.1 4.2 98
POWDER RIVER PASS 9480 7.6 8.1 94 9.1 9.4 97
SHELL CREEK 9580 10.2 11.0 93 9.7 10.3 94
SYLVAN LAKE 8420 13.9 17.3 80 17.8 16.8 106
SYLVAN ROAD 7120 8.8 10.5 84 -M 14.8 *
TIMBER CREEK 7950 1.5 4.0 38 4.2 5.1 82
YOUNTS PEAK 8350 -M 13.6 * 14.0 12.8 109
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Basin wide percent of average 89 99
SHOSHONE RIVER
BLACKWATER 9780 17.7 18.9 94 16.0 16.1 99
EVENING STAR 9200 20.1 23.1 87 22.4 20.3 110
KIRWIN 9550 8.0 8.5 94 8.5 8.6 99
MARQUETTE 8760 -M 6.5 * 5.9 7.0 84
SYLVAN LAKE 8420 13.9 17.3 80 17.8 16.8 106
SYLVAN ROAD 7120 8.8 10.5 84 -M 14.8 *
YOUNTS PEAK 8350 -M 13.6 * 14.0 12.8 109
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Basin wide percent of average 87 104
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.4 4.0 110 6.3 6.1 103
BIG GOOSE 7990 4.5 7.1 63 6.7 6.4 105
BONE SPRINGS DIV 9350 -M 12.1 * -M 10.9 *
BURGESS JUNCTION 7880 7.4 8.4 88 8.7 8.9 98
CLOUD PEAK RESERVOIR 9860 9.7 9.2 105 8.9 9.2 97
DOME LAKE 8880 7.7 8.9 87 8.6 9.7 89
GRAVE SPRINGS 8550 7.5 6.7 112 9.6 7.3 132
HANSEN SAWMILL 8360 2.8 4.8 58 4.8 5.9 81
MIDDLE POWDER 7760 10.2 8.4 121 8.7 9.1 96
POWDER RIVER PASS 9480 7.6 8.1 94 9.1 9.4 97
SUCKER CREEK 8880 7.9 8.4 94 10.5 9.9 106
TIE CREEK 6870 4.0 4.6 87 8.0 7.5 107
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Basin wide percent of average 94 101
BELLE FOURCHE
BLIND PARK 6890 6.2 6.2 100 8.7 8.8 99
COLE CANYON 5910 3.8 4.7 81 7.4 -M *
NORTH RAPID CREEK 6130 5.3 6.2 85 6.9 7.1 97
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Basin wide percent of average 89 98
UPPER N. PLATTE RIVER
COLUMBINE 9160 26.0 20.0 130 28.0 19.4 144
DIVIDE PEAK 8860 14.1 14.5 97 17.0 15.8 108
ELK RIVER 8700 16.2 14.7 110 17.0 14.9 114
JOE WRIGHT 10120 17.7 16.0 111 21.4 18.8 114
NORTH FRENCH CREEK 10130 27.7 21.0 132 26.5 18.8 141
OLD BATTLE 9920 29.9 23.9 125 33.4 26.3 127
SAGE CREEK BASIN 7850 10.0 8.4 119 11.9 9.2 129
SOUTH BRUSH CREEK 8440 9.9 9.0 110 13.8 12.4 111
TOWER 10500 42.7 34.9 122 31.0 29.6 105
WEBBER SPRINGS 9250 21.5 19.2 112 26.9 20.6 131
WILLOW CREEK PASS 9540 10.0 8.8 114 10.9 9.7 112
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Basin wide percent of average 119 122
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 19.9 17.6 113 16.6 16.4 101
CASPER MTN. 7850 13.6 10.4 131 14.5 10.3 141
DEADMAN HILL 10220 12.5 12.1 103 13.9 12.3 113
DEER PARK 9700 13.6 13.9 98 16.6 16.6 100
LAPRELE CREEK 8375 8.1 8.3 98 8.9 9.3 96
RENO HILL 8500 12.9 9.6 134 14.2 10.7 133
ROACH 9700 12.0 12.9 93 14.9 13.8 108
SAND LAKE 10050 25.7 23.1 111 24.6 18.1 136
SOUTH PASS 9040 13.1 12.9 102 14.1 14.0 101
WINDY PEAK 7900 5.5 5.5 100 7.5 8.0 94
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Basin wide percent of average 108 113
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 10.6 9.0 118 13.2 11.4 116
DIVIDE PEAK 8860 14.1 14.5 97 17.0 15.8 108
OLD BATTLE 9920 29.9 23.9 125 33.4 26.3 127
SANDSTONE RS 8150 12.2 11.5 106 17.7 14.6 121
WHISKEY PARK 8950 30.1 21.9 137 29.5 22.0 134
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Basin wide percent of average 120 123
UPPER GREEN RIVER
BIG SANDY OPENING 9080 12.1 11.2 108 12.4 10.5 118
BLIND BULL SUM 8900 23.2 21.3 109 17.9 17.8 101
EAST RIM DIVIDE 7930 9.1 10.1 90 9.7 9.4 103
ELKHART PARK G.S. 9400 11.3 10.2 111 12.1 10.2 119
GROS VENTRE SUMMIT 8750 9.8 10.7 92 10.6 10.1 105
KENDALL R.S. 7740 12.0 11.4 105 12.9 11.5 112
LOOMIS PARK 8240 15.5 13.2 117 16.2 13.7 118
NEW FORK LAKE 8340 9.0 8.9 101 8.8 9.0 98
SNIDER BASIN 8060 15.0 11.5 130 14.2 12.8 111
SPRING CREEK DIVIDE 9000 26.3 20.4 129 -M 21.0 *
TRIPLE PEAK 8500 25.1 19.3 130 25.6 19.1 134
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Basin wide percent of average 114 113
LOWER GREEN RIVER
HAMS FORK 7840 12.5 10.0 125 11.8 9.7 122
HEWINTA 9500 9.3 8.2 113 12.2 10.8 113
HICKERSON PARK 9100 3.2 5.3 60 5.4 5.8 93
HOLE-IN-ROCK 9150 5.4 5.1 106 6.3 5.4 117
INDIAN CREEK 9425 25.6 20.4 125 -M 19.6 *
KELLEY R.S. 8180 16.8 12.7 132 18.4 16.0 115
STEEL CREEK PARK 10100 12.3 11.4 108 13.7 11.9 115
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Basin wide percent of average 116 114
UPPER BEAR RIVER
BUG LAKE 7950 20.4 15.7 130 17.8 15.0 119
HAYDEN FORK 9100 16.5 11.9 139 19.7 15.9 124
KELLEY R.S. 8180 16.8 12.7 132 18.4 16.0 115
LILY LAKE 9050 11.6 9.9 117 13.1 13.3 98
MONTE CRISTO 8960 25.8 22.3 116 24.9 19.5 128
SALT RIVER SUMMIT 7600 12.9 11.2 115 15.6 14.7 106
TRIAL LAKE 9960 23.5 18.7 126 22.9 18.8 122
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Basin wide percent of average 125 117
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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.