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 WEDNESDAY: MARCH 1 , 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 18.1 16.0 113 22.8 18.6 123
COTTONWOOD CREEK 7600 25.9 18.5 140 27.0 23.0 117
GRANITE CREEK 6770 19.1 16.1 119 21.1 17.4 121
GRASSY LAKE 7265 31.9 29.5 108 36.0 31.0 116
GROS VENTRE SUMMIT 8750 10.5 11.5 91 11.1 10.8 103
LEWIS LAKE DIVIDE 7850 35.4 29.7 119 34.4 31.5 109
PHILLIPS BENCH 8200 27.8 23.9 116 28.7 24.6 117
SALT RIVER SUMMIT 7600 13.6 12.2 111 16.9 15.8 107
SNAKE RIVER STATION 6920 17.7 16.6 107 22.9 19.5 117
SPRING CREEK DIVIDE 9000 27.4 22.2 123 -M 22.5 *
THUMB DIVIDE 7980 15.8 15.4 103 16.4 16.0 102
TOGWOTEE PASS 9580 21.6 20.7 104 22.6 20.7 109
TWO OCEAN PLATEAU 9240 31.1 23.3 133 24.4 23.4 104
WILLOW CREEK 8450 30.6 25.4 120 33.9 27.0 126
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Basin wide percent of average 116 114
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 19.4 19.7 98 17.0 17.1 99
BLACK BEAR 8170 42.4 32.9 129 -M 33.3 *
CANYON 8090 12.5 11.3 111 15.1 13.0 116
FISHER CREEK 9100 35.7 29.6 121 33.2 30.6 108
MADISON PLATEAU 7750 22.7 20.9 109 26.9 22.1 122
NORTHEAST ENTRANCE 7350 9.0 9.7 93 11.0 10.8 102
PARKER PEAK 9400 16.2 18.2 89 14.7 13.7 107
SYLVAN LAKE 8420 15.1 18.8 80 18.9 17.9 106
THUMB DIVIDE 7980 15.8 15.4 103 16.4 16.0 102
TWO OCEAN PLATEAU 9240 31.1 23.3 133 24.4 23.4 104
WHISKEY CREEK 6800 13.6 14.4 94 19.9 17.4 114
WHITE MILL 8700 22.8 20.3 112 20.7 22.7 91
WOLVERINE 7650 8.1 10.6 76 8.2 11.2 73
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Basin wide percent of average 108 105
WIND RIVER
BURROUGHS CREEK 8750 12.1 12.6 96 14.3 13.7 104
COLD SPRINGS 9630 4.4 7.2 61 7.0 8.4 83
DEER PARK 9700 14.5 14.4 101 17.7 17.8 99
HOBBS PARK 10100 8.8 11.9 74 9.4 9.9 95
LITTLE WARM 9370 7.5 9.5 79 10.0 10.9 92
SOUTH PASS 9040 14.0 14.0 100 14.8 15.0 99
ST. LAWRENCE ALT 8620 2.8 5.9 47 5.3 7.0 76
TOGWOTEE PASS 9580 21.6 20.7 104 22.6 20.7 109
TOWNSEND CREEK 8700 5.4 6.9 78 8.0 8.9 90
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Basin wide percent of average 88 97
BIGHORN BASIN
BALD MTN. 9380 12.8 16.0 80 10.2 14.1 72
BEAR TRAP MEADOW 8200 4.8 4.3 112 6.4 6.4 100
BLACKWATER 9780 19.2 20.4 94 17.3 17.2 101
BONE SPRINGS DIV 9350 11.4 13.2 86 11.7 11.6 101
EVENING STAR 9200 21.9 25.0 88 24.3 21.8 111
GRAVE SPRINGS 8550 7.9 7.3 108 9.6 7.8 123
KIRWIN 9550 8.4 9.1 92 9.3 9.2 101
MARQUETTE 8760 1.8 6.9 26 6.3 7.5 84
MIDDLE POWDER 7760 10.4 9.0 116 8.9 9.6 93
OWL CREEK 8975 2.5 4.1 61 4.7 4.4 107
POWDER RIVER PASS 9480 8.2 8.7 94 9.9 10.0 99
SHELL CREEK 9580 11.8 11.8 100 10.8 10.8 100
SYLVAN LAKE 8420 15.1 18.8 80 18.9 17.9 106
SYLVAN ROAD 7120 9.2 11.4 81 14.4 15.6 92
TIMBER CREEK 7950 1.7 4.2 40 3.9 5.4 72
YOUNTS PEAK 8350 -M 14.6 * 15.3 13.6 112
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Basin wide percent of average 86 99
SHOSHONE RIVER
BLACKWATER 9780 19.2 20.4 94 17.3 17.2 101
EVENING STAR 9200 21.9 25.0 88 24.3 21.8 111
KIRWIN 9550 8.4 9.1 92 9.3 9.2 101
MARQUETTE 8760 1.8 6.9 26 6.3 7.5 84
SYLVAN LAKE 8420 15.1 18.8 80 18.9 17.9 106
SYLVAN ROAD 7120 9.2 11.4 81 14.4 15.6 92
YOUNTS PEAK 8350 -M 14.6 * 15.3 13.6 112
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Basin wide percent of average 83 103
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.8 4.3 112 6.4 6.4 100
BIG GOOSE 7990 5.3 7.7 69 7.4 6.8 109
BONE SPRINGS DIV 9350 11.4 13.2 86 11.7 11.6 101
BURGESS JUNCTION 7880 8.0 9.0 89 9.4 9.5 99
CLOUD PEAK RESERVOIR 9860 10.8 10.0 108 10.0 9.8 102
DOME LAKE 8880 8.7 9.5 92 9.3 10.2 91
GRAVE SPRINGS 8550 7.9 7.3 108 9.6 7.8 123
HANSEN SAWMILL 8360 3.4 5.2 65 5.2 6.3 83
MIDDLE POWDER 7760 10.4 9.0 116 8.9 9.6 93
POWDER RIVER PASS 9480 8.2 8.7 94 9.9 10.0 99
SUCKER CREEK 8880 8.5 9.1 93 11.3 10.5 108
TIE CREEK 6870 4.5 4.9 92 8.5 7.9 108
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Basin wide percent of average 94 101
BELLE FOURCHE
BLIND PARK 6890 6.4 7.1 90 9.2 9.3 99
COLE CANYON 5910 4.7 5.1 92 7.8 -M *
NORTH RAPID CREEK 6130 5.6 6.8 82 7.4 7.5 99
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Basin wide percent of average 88 99
UPPER N. PLATTE RIVER
COLUMBINE 9160 27.3 21.9 125 29.4 20.9 141
DIVIDE PEAK 8860 15.0 15.6 96 17.8 17.0 105
ELK RIVER 8700 17.8 16.1 111 17.7 16.1 110
JOE WRIGHT 10120 17.9 17.3 103 22.1 20.2 109
NORTH FRENCH CREEK 10130 28.5 22.7 126 27.9 20.2 138
OLD BATTLE 9920 31.1 26.3 118 35.1 28.5 123
SAGE CREEK BASIN 7850 10.5 9.0 117 12.5 9.9 126
SOUTH BRUSH CREEK 8440 9.9 10.0 99 14.4 13.3 108
TOWER 10500 44.7 37.6 119 -M 31.9 *
WEBBER SPRINGS 9250 22.4 21.3 105 28.4 22.1 129
WILLOW CREEK PASS 9540 10.8 9.6 113 11.5 10.4 111
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Basin wide percent of average 114 121
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 21.0 19.0 111 17.8 17.5 102
CASPER MTN. 7850 13.7 11.3 121 14.9 11.1 134
DEADMAN HILL 10220 13.3 13.0 102 14.5 13.3 109
DEER PARK 9700 14.5 14.4 101 17.7 17.8 99
LAPRELE CREEK 8375 8.5 8.9 96 9.4 10.0 94
RENO HILL 8500 13.2 10.4 127 14.6 11.5 127
ROACH 9700 12.4 13.9 89 15.5 14.9 104
SAND LAKE 10050 27.1 25.2 108 26.1 19.3 135
SOUTH PASS 9040 14.0 14.0 100 14.8 15.0 99
WINDY PEAK 7900 5.8 6.0 97 7.8 8.5 92
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Basin wide percent of average 105 110
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 11.8 9.7 122 13.8 12.3 112
DIVIDE PEAK 8860 15.0 15.6 96 17.8 17.0 105
OLD BATTLE 9920 31.1 26.3 118 35.1 28.5 123
SANDSTONE RS 8150 12.6 12.5 101 18.4 15.7 117
WHISKEY PARK 8950 31.9 23.8 134 30.0 23.4 128
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Basin wide percent of average 116 119
UPPER GREEN RIVER
BIG SANDY OPENING 9080 13.1 12.1 108 13.3 11.3 118
BLIND BULL SUM 8900 24.4 23.1 106 18.7 19.1 98
EAST RIM DIVIDE 7930 9.7 11.0 88 10.2 10.2 100
ELKHART PARK G.S. 9400 12.1 11.1 109 12.8 10.9 117
GROS VENTRE SUMMIT 8750 10.5 11.5 91 11.1 10.8 103
KENDALL R.S. 7740 13.4 12.4 108 13.9 12.5 111
LOOMIS PARK 8240 16.7 14.5 115 17.5 14.8 118
NEW FORK LAKE 8340 9.9 9.6 103 9.5 9.6 99
SNIDER BASIN 8060 16.0 12.4 129 15.0 13.7 109
SPRING CREEK DIVIDE 9000 27.4 22.2 123 -M 22.5 *
TRIPLE PEAK 8500 26.4 20.9 126 27.2 20.7 131
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Basin wide percent of average 112 112
LOWER GREEN RIVER
HAMS FORK 7840 13.3 11.0 121 12.3 10.4 118
HEWINTA 9500 10.3 9.1 113 12.5 11.6 108
HICKERSON PARK 9100 3.5 5.8 60 5.7 6.2 92
HOLE-IN-ROCK 9150 5.9 5.7 104 6.5 5.8 112
INDIAN CREEK 9425 26.8 22.3 120 -M 21.1 *
KELLEY R.S. 8180 17.6 14.0 126 19.5 17.2 113
STEEL CREEK PARK 10100 13.2 12.7 104 14.3 12.9 111
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Basin wide percent of average 112 110
UPPER BEAR RIVER
BUG LAKE 7950 21.5 17.1 126 18.7 16.2 115
HAYDEN FORK 9100 17.6 13.2 133 20.7 17.1 121
KELLEY R.S. 8180 17.6 14.0 126 19.5 17.2 113
LILY LAKE 9050 12.1 10.8 112 13.8 14.3 97
MONTE CRISTO 8960 27.3 24.7 111 26.1 21.1 124
SALT RIVER SUMMIT 7600 13.6 12.2 111 16.9 15.8 107
TRIAL LAKE 9960 24.7 20.6 120 23.4 20.5 114
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Basin wide percent of average 119 114
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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.