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 24 , 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 18.0 15.4 117 22.5 17.9 126
COTTONWOOD CREEK 7600 24.4 17.6 139 26.4 22.2 119
GRANITE CREEK 6770 18.4 15.4 119 20.5 16.7 123
GRASSY LAKE 7265 31.6 28.3 112 34.8 29.9 116
GROS VENTRE SUMMIT 8750 10.0 11.1 90 10.7 10.4 103
LEWIS LAKE DIVIDE 7850 34.8 28.5 122 33.9 30.3 112
PHILLIPS BENCH 8200 26.9 22.9 117 27.8 23.7 117
SALT RIVER SUMMIT 7600 13.5 11.7 115 16.4 15.2 108
SNAKE RIVER STATION 6920 17.6 15.9 111 22.5 18.8 120
SPRING CREEK DIVIDE 9000 27.0 21.3 127 -M 21.8 *
THUMB DIVIDE 7980 14.7 14.7 100 15.4 15.4 100
TOGWOTEE PASS 9580 20.9 20.0 104 21.9 20.0 110
TWO OCEAN PLATEAU 9240 30.2 22.5 134 23.8 22.5 106
WILLOW CREEK 8450 29.1 24.4 119 33.3 26.1 128
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Basin wide percent of average 118 115
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 18.6 19.2 97 16.3 16.5 99
BLACK BEAR 8170 40.9 31.5 130 -M 32.0 *
CANYON 8090 12.0 10.9 110 14.7 12.6 117
FISHER CREEK 9100 34.0 28.5 119 -M 29.5 *
MADISON PLATEAU 7750 21.8 20.0 109 25.0 21.3 117
NORTHEAST ENTRANCE 7350 8.8 9.4 94 10.6 10.5 101
PARKER PEAK 9400 15.7 17.6 89 14.3 13.2 108
SYLVAN LAKE 8420 14.7 18.1 81 18.5 17.3 107
THUMB DIVIDE 7980 14.7 14.7 100 15.4 15.4 100
TWO OCEAN PLATEAU 9240 30.2 22.5 134 23.8 22.5 106
WHISKEY CREEK 6800 12.8 13.8 93 18.8 16.8 112
WHITE MILL 8700 21.5 19.5 110 -M 21.9 *
WOLVERINE 7650 8.9 10.3 86 8.2 10.8 76
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Basin wide percent of average 108 106
WIND RIVER
BURROUGHS CREEK 8750 11.9 12.1 98 14.0 13.3 105
COLD SPRINGS 9630 4.1 6.9 59 6.6 8.2 80
DEER PARK 9700 13.7 14.2 96 16.8 17.2 98
HOBBS PARK 10100 8.0 11.5 70 8.8 9.6 92
LITTLE WARM 9370 7.2 9.1 79 9.7 10.6 92
SOUTH PASS 9040 13.4 13.5 99 14.3 14.5 99
ST. LAWRENCE ALT 8620 2.5 5.7 44 4.9 6.8 72
TOGWOTEE PASS 9580 20.9 20.0 104 21.9 20.0 110
TOWNSEND CREEK 8700 5.0 6.7 75 7.8 8.6 91
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Basin wide percent of average 87 96
BIGHORN BASIN
BALD MTN. 9380 12.7 15.5 82 9.9 13.7 72
BEAR TRAP MEADOW 8200 4.6 4.2 110 6.4 6.2 103
BLACKWATER 9780 18.5 19.6 94 16.7 16.7 100
BONE SPRINGS DIV 9350 -M 12.7 * -M 11.2 *
EVENING STAR 9200 21.4 24.0 89 23.5 21.1 111
GRAVE SPRINGS 8550 7.7 7.0 110 9.6 7.5 128
KIRWIN 9550 8.2 8.8 93 8.9 8.9 100
MARQUETTE 8760 1.8 6.7 27 6.3 7.3 86
MIDDLE POWDER 7760 10.4 8.7 120 8.9 9.4 95
OWL CREEK 8975 2.4 4.0 60 4.6 4.3 107
POWDER RIVER PASS 9480 8.0 8.4 95 9.5 9.7 98
SHELL CREEK 9580 11.3 11.4 99 10.5 10.5 100
SYLVAN LAKE 8420 14.7 18.1 81 18.5 17.3 107
SYLVAN ROAD 7120 9.1 11.0 83 14.1 15.2 93
TIMBER CREEK 7950 1.6 4.1 39 4.0 5.2 77
YOUNTS PEAK 8350 -M 14.1 * 15.0 13.2 114
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Basin wide percent of average 87 100
SHOSHONE RIVER
BLACKWATER 9780 18.5 19.6 94 16.7 16.7 100
EVENING STAR 9200 21.4 24.0 89 23.5 21.1 111
KIRWIN 9550 8.2 8.8 93 8.9 8.9 100
MARQUETTE 8760 1.8 6.7 27 6.3 7.3 86
SYLVAN LAKE 8420 14.7 18.1 81 18.5 17.3 107
SYLVAN ROAD 7120 9.1 11.0 83 14.1 15.2 93
YOUNTS PEAK 8350 -M 14.1 * 15.0 13.2 114
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Basin wide percent of average 84 103
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.6 4.2 110 6.4 6.2 103
BIG GOOSE 7990 5.0 7.4 68 7.2 6.6 109
BONE SPRINGS DIV 9350 -M 12.7 * -M 11.2 *
BURGESS JUNCTION 7880 7.8 8.7 90 9.2 9.2 100
CLOUD PEAK RESERVOIR 9860 10.4 9.6 108 9.6 9.5 101
DOME LAKE 8880 8.3 9.2 90 9.0 9.9 91
GRAVE SPRINGS 8550 7.7 7.0 110 9.6 7.5 128
HANSEN SAWMILL 8360 3.2 5.0 64 5.2 6.1 85
MIDDLE POWDER 7760 10.4 8.7 120 8.9 9.4 95
POWDER RIVER PASS 9480 8.0 8.4 95 9.5 9.7 98
SUCKER CREEK 8880 8.3 8.7 95 10.9 10.2 107
TIE CREEK 6870 4.3 4.8 90 8.3 7.7 108
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Basin wide percent of average 95 102
BELLE FOURCHE
BLIND PARK 6890 6.8 6.7 101 9.4 9.0 104
COLE CANYON 5910 4.5 4.9 92 7.6 -M *
NORTH RAPID CREEK 6130 5.9 6.5 91 7.3 7.3 100
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Basin wide percent of average 95 102
UPPER N. PLATTE RIVER
COLUMBINE 9160 26.8 21.0 128 29.2 20.1 145
DIVIDE PEAK 8860 14.7 15.1 97 17.5 16.4 107
ELK RIVER 8700 16.4 15.4 106 17.4 15.5 112
JOE WRIGHT 10120 18.1 16.7 108 22.0 19.5 113
NORTH FRENCH CREEK 10130 28.1 21.8 129 26.6 19.5 136
OLD BATTLE 9920 30.5 25.1 122 33.6 27.4 123
SAGE CREEK BASIN 7850 10.4 8.7 120 12.3 9.5 129
SOUTH BRUSH CREEK 8440 9.8 9.5 103 14.0 12.9 109
TOWER 10500 44.2 36.2 122 -M 30.7 *
WEBBER SPRINGS 9250 22.1 20.3 109 27.8 21.4 130
WILLOW CREEK PASS 9540 10.6 9.2 115 11.2 10.0 112
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Basin wide percent of average 116 123
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 20.6 18.3 113 17.4 16.9 103
CASPER MTN. 7850 13.5 10.9 124 14.8 10.7 138
DEADMAN HILL 10220 12.8 12.5 102 14.2 12.8 111
DEER PARK 9700 13.7 14.2 96 16.8 17.2 98
LAPRELE CREEK 8375 8.3 8.6 97 9.2 9.7 95
RENO HILL 8500 13.1 10.0 131 14.4 11.1 130
ROACH 9700 12.2 13.4 91 15.0 14.3 105
SAND LAKE 10050 26.6 24.1 110 25.4 18.7 136
SOUTH PASS 9040 13.4 13.5 99 14.3 14.5 99
WINDY PEAK 7900 5.7 5.8 98 7.7 8.2 94
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Basin wide percent of average 107 111
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 11.1 9.3 119 13.5 11.9 113
DIVIDE PEAK 8860 14.7 15.1 97 17.5 16.4 107
OLD BATTLE 9920 30.5 25.1 122 33.6 27.4 123
SANDSTONE RS 8150 12.5 12.0 104 18.1 15.1 120
WHISKEY PARK 8950 31.2 22.8 137 29.6 22.7 130
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Basin wide percent of average 119 120
UPPER GREEN RIVER
BIG SANDY OPENING 9080 12.4 11.6 107 12.7 10.9 117
BLIND BULL SUM 8900 23.8 22.2 107 18.3 18.4 99
EAST RIM DIVIDE 7930 9.5 10.5 90 10.0 9.8 102
ELKHART PARK G.S. 9400 11.7 10.7 109 12.4 10.5 118
GROS VENTRE SUMMIT 8750 10.0 11.1 90 10.7 10.4 103
KENDALL R.S. 7740 12.7 11.9 107 13.6 12.0 113
LOOMIS PARK 8240 16.2 13.9 117 17.0 14.3 119
NEW FORK LAKE 8340 9.5 9.2 103 9.3 9.3 100
SNIDER BASIN 8060 15.2 11.9 128 14.7 13.2 111
SPRING CREEK DIVIDE 9000 27.0 21.3 127 -M 21.8 *
TRIPLE PEAK 8500 25.8 20.1 128 26.4 19.9 133
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Basin wide percent of average 113 113
LOWER GREEN RIVER
HAMS FORK 7840 12.9 10.5 123 12.0 10.0 120
HEWINTA 9500 9.1 8.6 106 12.3 11.2 110
HICKERSON PARK 9100 3.1 5.5 56 5.5 6.0 92
HOLE-IN-ROCK 9150 5.5 5.4 102 6.3 5.6 112
INDIAN CREEK 9425 26.2 21.4 122 -M 20.3 *
KELLEY R.S. 8180 17.1 13.4 128 18.9 16.6 114
STEEL CREEK PARK 10100 12.5 12.1 103 13.9 12.4 112
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Basin wide percent of average 112 111
UPPER BEAR RIVER
BUG LAKE 7950 20.8 16.4 127 18.3 15.6 117
HAYDEN FORK 9100 16.8 12.6 133 19.9 16.5 121
KELLEY R.S. 8180 17.1 13.4 128 18.9 16.6 114
LILY LAKE 9050 11.5 10.3 112 13.3 13.8 96
MONTE CRISTO 8960 26.2 23.5 111 25.6 20.3 126
SALT RIVER SUMMIT 7600 13.5 11.7 115 16.4 15.2 108
TRIAL LAKE 9960 23.7 19.7 120 23.2 19.7 118
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Basin wide percent of average 120 115
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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.