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 THURSDAY: FEBRUARY 23 , 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 17.8 15.3 116 22.3 17.8 125
COTTONWOOD CREEK 7600 24.3 17.4 140 26.2 22.1 119
GRANITE CREEK 6770 18.3 15.3 120 20.4 16.6 123
GRASSY LAKE 7265 31.4 28.1 112 -M 29.7 *
GROS VENTRE SUMMIT 8750 9.9 11.0 90 10.6 10.4 102
LEWIS LAKE DIVIDE 7850 34.4 28.3 122 33.7 30.1 112
PHILLIPS BENCH 8200 26.6 22.7 117 27.6 23.5 117
SALT RIVER SUMMIT 7600 13.5 11.6 116 16.4 15.1 109
SNAKE RIVER STATION 6920 17.5 15.7 111 22.0 18.7 118
SPRING CREEK DIVIDE 9000 26.8 21.1 127 -M 21.6 *
THUMB DIVIDE 7980 14.4 14.6 99 15.3 15.3 100
TOGWOTEE PASS 9580 20.7 19.9 104 21.8 19.9 110
TWO OCEAN PLATEAU 9240 29.8 22.4 133 23.6 22.3 106
WILLOW CREEK 8450 28.9 24.2 119 33.0 25.9 127
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Basin wide percent of average 117 115
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 18.2 19.1 95 16.0 16.4 98
BLACK BEAR 8170 40.7 31.3 130 -M 31.8 *
CANYON 8090 11.9 10.8 110 14.5 12.5 116
FISHER CREEK 9100 33.2 28.3 117 -M 29.3 *
MADISON PLATEAU 7750 21.6 19.9 109 24.9 21.1 118
NORTHEAST ENTRANCE 7350 8.7 9.3 94 10.5 10.4 101
PARKER PEAK 9400 15.4 17.4 89 14.2 13.1 108
SYLVAN LAKE 8420 14.4 17.9 80 18.1 17.2 105
THUMB DIVIDE 7980 14.4 14.6 99 15.3 15.3 100
TWO OCEAN PLATEAU 9240 29.8 22.4 133 23.6 22.3 106
WHISKEY CREEK 6800 12.8 13.7 93 18.8 16.6 113
WHITE MILL 8700 21.1 19.4 109 -M 21.8 *
WOLVERINE 7650 9.2 10.2 90 8.1 10.8 75
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Basin wide percent of average 107 105
WIND RIVER
BURROUGHS CREEK 8750 11.8 12.0 98 13.9 13.2 105
COLD SPRINGS 9630 4.0 6.9 58 6.6 8.1 81
DEER PARK 9700 13.6 14.1 96 16.7 17.1 98
HOBBS PARK 10100 8.1 11.4 71 8.8 9.5 93
LITTLE WARM 9370 7.1 9.1 78 9.7 10.5 92
SOUTH PASS 9040 13.3 13.4 99 14.2 14.4 99
ST. LAWRENCE ALT 8620 2.4 5.6 43 4.9 6.7 73
TOGWOTEE PASS 9580 20.7 19.9 104 21.8 19.9 110
TOWNSEND CREEK 8700 5.0 6.6 76 7.8 8.6 91
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Basin wide percent of average 87 97
BIGHORN BASIN
BALD MTN. 9380 12.7 15.4 82 9.9 13.6 73
BEAR TRAP MEADOW 8200 4.6 4.1 112 6.4 6.2 103
BLACKWATER 9780 18.3 19.5 94 16.5 16.6 99
BONE SPRINGS DIV 9350 -M 12.6 * -M 11.2 *
EVENING STAR 9200 20.7 23.8 87 23.1 20.9 111
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 1.9 6.6 29 6.2 7.2 86
MIDDLE POWDER 7760 10.3 8.6 120 8.9 9.3 96
OWL CREEK 8975 2.4 3.9 62 4.4 4.2 105
POWDER RIVER PASS 9480 8.0 8.4 95 9.5 9.6 99
SHELL CREEK 9580 11.2 11.3 99 10.5 10.5 100
SYLVAN LAKE 8420 14.4 17.9 80 18.1 17.2 105
SYLVAN ROAD 7120 8.9 10.9 82 13.9 15.1 92
TIMBER CREEK 7950 1.6 4.1 39 4.0 5.2 77
YOUNTS PEAK 8350 12.2 14.0 87 14.5 13.1 111
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Basin wide percent of average 87 100
SHOSHONE RIVER
BLACKWATER 9780 18.3 19.5 94 16.5 16.6 99
EVENING STAR 9200 20.7 23.8 87 23.1 20.9 111
KIRWIN 9550 8.2 8.8 93 8.9 8.9 100
MARQUETTE 8760 1.9 6.6 29 6.2 7.2 86
SYLVAN LAKE 8420 14.4 17.9 80 18.1 17.2 105
SYLVAN ROAD 7120 8.9 10.9 82 13.9 15.1 92
YOUNTS PEAK 8350 12.2 14.0 87 14.5 13.1 111
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Basin wide percent of average 83 102
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.6 4.1 112 6.4 6.2 103
BIG GOOSE 7990 4.9 7.3 67 7.1 6.6 108
BONE SPRINGS DIV 9350 -M 12.6 * -M 11.2 *
BURGESS JUNCTION 7880 7.7 8.6 90 9.1 9.2 99
CLOUD PEAK RESERVOIR 9860 10.3 9.5 108 9.5 9.5 100
DOME LAKE 8880 8.2 9.2 89 9.0 9.9 91
GRAVE SPRINGS 8550 7.7 7.0 110 9.6 7.5 128
HANSEN SAWMILL 8360 3.2 4.9 65 5.1 6.1 84
MIDDLE POWDER 7760 10.3 8.6 120 8.9 9.3 96
POWDER RIVER PASS 9480 8.0 8.4 95 9.5 9.6 99
SUCKER CREEK 8880 8.1 8.7 93 10.9 10.1 108
TIE CREEK 6870 4.2 4.7 89 8.2 7.7 106
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Basin wide percent of average 95 102
BELLE FOURCHE
BLIND PARK 6890 6.8 6.6 103 9.0 9.0 100
COLE CANYON 5910 4.5 4.8 94 7.6 -M *
NORTH RAPID CREEK 6130 5.8 6.4 91 7.2 7.2 100
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Basin wide percent of average 96 100
UPPER N. PLATTE RIVER
COLUMBINE 9160 26.7 20.8 128 29.1 20.0 146
DIVIDE PEAK 8860 14.6 15.0 97 17.4 16.3 107
ELK RIVER 8700 16.5 15.3 108 17.3 15.4 112
JOE WRIGHT 10120 18.0 16.5 109 21.8 19.3 113
NORTH FRENCH CREEK 10130 28.0 21.7 129 26.6 19.4 137
OLD BATTLE 9920 30.5 24.9 122 33.5 27.2 123
SAGE CREEK BASIN 7850 10.4 8.7 120 12.3 9.5 129
SOUTH BRUSH CREEK 8440 9.8 9.4 104 14.0 12.8 109
TOWER 10500 44.0 36.0 122 31.0 30.5 102
WEBBER SPRINGS 9250 22.0 20.1 109 27.7 21.2 131
WILLOW CREEK PASS 9540 10.5 9.1 115 11.2 10.0 112
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Basin wide percent of average 117 120
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 20.5 18.2 113 16.9 16.8 101
CASPER MTN. 7850 13.5 10.8 125 14.7 10.6 139
DEADMAN HILL 10220 12.8 12.4 103 14.2 12.7 112
DEER PARK 9700 13.6 14.1 96 16.7 17.1 98
LAPRELE CREEK 8375 8.3 8.5 98 9.1 9.6 95
RENO HILL 8500 13.0 9.9 131 14.4 11.0 131
ROACH 9700 12.1 13.3 91 14.9 14.2 105
SAND LAKE 10050 26.5 23.9 111 25.3 18.6 136
SOUTH PASS 9040 13.3 13.4 99 14.2 14.4 99
WINDY PEAK 7900 5.7 5.7 100 7.7 8.2 94
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Basin wide percent of average 107 111
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 11.0 9.3 118 13.5 11.8 114
DIVIDE PEAK 8860 14.6 15.0 97 17.4 16.3 107
OLD BATTLE 9920 30.5 24.9 122 33.5 27.2 123
SANDSTONE RS 8150 12.5 11.9 105 18.1 15.0 121
WHISKEY PARK 8950 31.2 22.6 138 29.5 22.5 131
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Basin wide percent of average 119 121
UPPER GREEN RIVER
BIG SANDY OPENING 9080 12.4 11.5 108 12.6 10.8 117
BLIND BULL SUM 8900 23.5 22.0 107 18.1 18.3 99
EAST RIM DIVIDE 7930 9.4 10.4 90 10.0 9.8 102
ELKHART PARK G.S. 9400 11.5 10.6 108 12.3 10.5 117
GROS VENTRE SUMMIT 8750 9.9 11.0 90 10.6 10.4 102
KENDALL R.S. 7740 12.5 11.8 106 13.4 11.9 113
LOOMIS PARK 8240 15.9 13.7 116 16.8 14.2 118
NEW FORK LAKE 8340 9.4 9.2 102 9.2 9.2 100
SNIDER BASIN 8060 15.2 11.8 129 14.6 13.1 111
SPRING CREEK DIVIDE 9000 26.8 21.1 127 -M 21.6 *
TRIPLE PEAK 8500 25.6 19.9 129 26.2 19.7 133
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Basin wide percent of average 112 112
LOWER GREEN RIVER
HAMS FORK 7840 12.9 10.4 124 12.0 10.0 120
HEWINTA 9500 9.2 8.5 108 12.3 11.1 111
HICKERSON PARK 9100 3.2 5.5 58 5.4 6.0 90
HOLE-IN-ROCK 9150 5.5 5.4 102 6.3 5.6 112
INDIAN CREEK 9425 26.0 21.2 123 -M 20.2 *
KELLEY R.S. 8180 17.1 13.2 130 18.9 16.5 115
STEEL CREEK PARK 10100 12.5 11.9 105 13.8 12.3 112
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Basin wide percent of average 114 112
UPPER BEAR RIVER
BUG LAKE 7950 20.7 16.2 128 18.1 15.5 117
HAYDEN FORK 9100 16.6 12.4 134 19.9 16.4 121
KELLEY R.S. 8180 17.1 13.2 130 18.9 16.5 115
LILY LAKE 9050 11.5 10.2 113 13.4 13.7 98
MONTE CRISTO 8960 26.2 23.3 112 25.5 20.2 126
SALT RIVER SUMMIT 7600 13.5 11.6 116 16.4 15.1 109
TRIAL LAKE 9960 23.6 19.5 121 22.9 19.5 117
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Basin wide percent of average 121 116
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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.