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 MONDAY: MARCH 6 , 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 19.0 16.5 115 23.2 19.1 121
COTTONWOOD CREEK 7600 25.8 19.5 132 27.6 23.8 116
GRANITE CREEK 6770 19.1 16.7 114 21.2 17.8 119
GRASSY LAKE 7265 32.8 30.7 107 36.4 31.9 114
GROS VENTRE SUMMIT 8750 10.5 12.0 88 11.2 11.2 100
LEWIS LAKE DIVIDE 7850 36.2 30.8 118 35.2 32.4 109
PHILLIPS BENCH 8200 28.2 24.8 114 29.1 25.4 115
SALT RIVER SUMMIT 7600 14.3 12.6 113 16.9 16.3 104
SNAKE RIVER STATION 6920 18.6 17.2 108 23.3 20.0 116
SPRING CREEK DIVIDE 9000 27.5 23.0 120 -M 23.2 *
THUMB DIVIDE 7980 16.2 16.1 101 16.7 16.5 101
TOGWOTEE PASS 9580 21.8 21.4 102 22.9 21.4 107
TWO OCEAN PLATEAU 9240 31.5 24.1 131 24.6 24.1 102
WILLOW CREEK 8450 31.0 26.3 118 34.8 27.9 125
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Basin wide percent of average 114 112
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 19.6 20.5 96 17.3 17.6 98
BLACK BEAR 8170 43.1 34.1 126 -M 34.5 *
CANYON 8090 12.9 11.8 109 15.4 13.4 115
FISHER CREEK 9100 36.2 30.6 118 33.7 31.6 107
MADISON PLATEAU 7750 23.4 21.7 108 28.0 22.9 122
NORTHEAST ENTRANCE 7350 9.2 10.0 92 11.2 11.1 101
PARKER PEAK 9400 16.3 18.8 87 14.7 14.1 104
SYLVAN LAKE 8420 15.4 19.4 79 19.4 18.4 105
THUMB DIVIDE 7980 16.2 16.1 101 16.7 16.5 101
TWO OCEAN PLATEAU 9240 31.5 24.1 131 24.6 24.1 102
WHISKEY CREEK 6800 14.0 14.9 94 20.6 18.0 114
WHITE MILL 8700 23.2 21.0 110 21.0 23.4 90
WOLVERINE 7650 8.0 10.8 74 8.1 11.5 70
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Basin wide percent of average 106 104
WIND RIVER
BURROUGHS CREEK 8750 12.2 12.9 95 14.4 14.1 102
COLD SPRINGS 9630 4.5 7.5 60 7.2 8.8 82
DEER PARK 9700 14.6 14.7 99 18.0 18.5 97
HOBBS PARK 10100 8.9 12.3 72 9.6 10.4 92
LITTLE WARM 9370 7.8 9.9 79 10.4 11.3 92
SOUTH PASS 9040 14.1 14.5 97 15.0 15.6 96
ST. LAWRENCE ALT 8620 2.9 6.2 47 5.3 7.3 73
TOGWOTEE PASS 9580 21.8 21.4 102 22.9 21.4 107
TOWNSEND CREEK 8700 5.4 7.2 75 8.1 9.4 86
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Basin wide percent of average 86 95
BIGHORN BASIN
BALD MTN. 9380 12.8 16.6 77 10.2 14.6 70
BEAR TRAP MEADOW 8200 4.7 4.5 104 6.4 6.7 96
BLACKWATER 9780 19.6 21.1 93 17.8 17.8 100
BONE SPRINGS DIV 9350 11.4 13.6 84 11.6 12.1 96
EVENING STAR 9200 22.2 25.8 86 24.6 22.4 110
GRAVE SPRINGS 8550 7.8 7.6 103 9.7 8.1 120
KIRWIN 9550 8.5 9.5 89 9.3 9.5 98
MARQUETTE 8760 1.9 7.2 26 6.1 7.9 77
MIDDLE POWDER 7760 10.2 9.4 109 8.8 10.1 87
OWL CREEK 8975 2.5 4.3 58 4.8 4.6 104
POWDER RIVER PASS 9480 8.1 9.1 89 9.8 10.4 94
SHELL CREEK 9580 11.7 12.2 96 10.8 11.2 96
SYLVAN LAKE 8420 15.4 19.4 79 19.4 18.4 105
SYLVAN ROAD 7120 9.1 11.7 78 14.6 16.0 91
TIMBER CREEK 7950 1.6 4.5 36 4.0 5.7 70
YOUNTS PEAK 8350 -M 15.0 * 15.4 14.0 110
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Basin wide percent of average 84 97
SHOSHONE RIVER
BLACKWATER 9780 19.6 21.1 93 17.8 17.8 100
EVENING STAR 9200 22.2 25.8 86 24.6 22.4 110
KIRWIN 9550 8.5 9.5 89 9.3 9.5 98
MARQUETTE 8760 1.9 7.2 26 6.1 7.9 77
SYLVAN LAKE 8420 15.4 19.4 79 19.4 18.4 105
SYLVAN ROAD 7120 9.1 11.7 78 14.6 16.0 91
YOUNTS PEAK 8350 -M 15.0 * 15.4 14.0 110
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Basin wide percent of average 81 101
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.7 4.5 104 6.4 6.7 96
BIG GOOSE 7990 5.2 8.1 64 7.5 7.1 106
BONE SPRINGS DIV 9350 11.4 13.6 84 11.6 12.1 96
BURGESS JUNCTION 7880 8.1 9.4 86 9.4 9.9 95
CLOUD PEAK RESERVOIR 9860 10.6 10.5 101 9.9 10.3 96
DOME LAKE 8880 8.7 9.9 88 9.4 10.7 88
GRAVE SPRINGS 8550 7.8 7.6 103 9.7 8.1 120
HANSEN SAWMILL 8360 3.3 5.4 61 5.4 6.6 82
MIDDLE POWDER 7760 10.2 9.4 109 8.8 10.1 87
POWDER RIVER PASS 9480 8.1 9.1 89 9.8 10.4 94
SUCKER CREEK 8880 8.5 9.5 89 11.3 11.0 103
TIE CREEK 6870 4.3 5.2 83 8.4 8.2 102
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Basin wide percent of average 89 97
BELLE FOURCHE
BLIND PARK 6890 6.5 7.5 87 9.2 9.6 96
COLE CANYON 5910 4.4 5.3 83 7.7 -M *
NORTH RAPID CREEK 6130 5.5 7.0 79 7.2 7.7 94
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Basin wide percent of average 83 95
UPPER N. PLATTE RIVER
COLUMBINE 9160 27.7 22.6 123 29.6 21.6 137
DIVIDE PEAK 8860 14.9 16.3 91 17.9 17.6 102
ELK RIVER 8700 17.7 16.7 106 17.9 16.7 107
JOE WRIGHT 10120 18.4 17.9 103 22.3 21.0 106
NORTH FRENCH CREEK 10130 28.6 23.7 121 28.0 20.9 134
OLD BATTLE 9920 31.2 27.3 114 35.9 29.5 122
SAGE CREEK BASIN 7850 11.0 9.5 116 12.5 10.3 121
SOUTH BRUSH CREEK 8440 10.5 10.6 99 14.4 13.8 104
TOWER 10500 45.2 38.9 116 -M 33.0 *
WEBBER SPRINGS 9250 22.8 22.4 102 28.5 22.9 124
WILLOW CREEK PASS 9540 10.7 10.0 107 11.5 10.8 106
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Basin wide percent of average 111 118
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 20.9 19.7 106 17.9 18.2 98
CASPER MTN. 7850 13.9 11.7 119 14.8 11.6 128
DEADMAN HILL 10220 13.4 13.5 99 14.8 13.9 106
DEER PARK 9700 14.6 14.7 99 18.0 18.5 97
LAPRELE CREEK 8375 8.3 9.3 89 9.3 10.4 89
RENO HILL 8500 12.9 11.0 117 14.4 12.1 119
ROACH 9700 12.5 14.4 87 15.7 15.5 101
SAND LAKE 10050 27.1 26.4 103 26.1 20.1 130
SOUTH PASS 9040 14.1 14.5 97 15.0 15.6 96
WINDY PEAK 7900 5.7 6.4 89 7.7 8.8 88
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Basin wide percent of average 101 106
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 12.2 10.2 120 13.7 12.9 106
DIVIDE PEAK 8860 14.9 16.3 91 17.9 17.6 102
OLD BATTLE 9920 31.2 27.3 114 35.9 29.5 122
SANDSTONE RS 8150 13.1 13.1 100 18.4 16.2 114
WHISKEY PARK 8950 32.3 25.1 129 30.6 24.3 126
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Basin wide percent of average 113 116
UPPER GREEN RIVER
BIG SANDY OPENING 9080 13.1 12.5 105 13.2 11.7 113
BLIND BULL SUM 8900 24.8 24.0 103 18.8 19.6 96
EAST RIM DIVIDE 7930 9.8 11.4 86 10.2 10.5 97
ELKHART PARK G.S. 9400 12.1 11.5 105 12.9 11.3 114
GROS VENTRE SUMMIT 8750 10.5 12.0 88 11.2 11.2 100
KENDALL R.S. 7740 13.4 12.9 104 13.9 12.9 108
LOOMIS PARK 8240 17.0 15.1 113 17.5 15.3 114
NEW FORK LAKE 8340 9.8 9.9 99 9.5 9.9 96
SNIDER BASIN 8060 16.3 12.8 127 15.1 14.1 107
SPRING CREEK DIVIDE 9000 27.5 23.0 120 -M 23.2 *
TRIPLE PEAK 8500 26.6 21.7 123 27.3 21.4 128
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Basin wide percent of average 108 108
LOWER GREEN RIVER
HAMS FORK 7840 13.7 11.4 120 12.5 10.7 117
HEWINTA 9500 10.5 9.6 109 12.9 12.1 107
HICKERSON PARK 9100 3.6 6.0 60 5.8 6.5 89
HOLE-IN-ROCK 9150 5.9 6.0 98 6.7 6.1 110
INDIAN CREEK 9425 27.2 23.3 117 -M 21.8 *
KELLEY R.S. 8180 18.0 14.6 123 19.7 17.7 111
STEEL CREEK PARK 10100 13.2 13.2 100 14.5 13.4 108
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Basin wide percent of average 110 108
UPPER BEAR RIVER
BUG LAKE 7950 21.2 17.8 119 19.0 16.7 114
HAYDEN FORK 9100 18.0 13.8 130 21.1 17.8 119
KELLEY R.S. 8180 18.0 14.6 123 19.7 17.7 111
LILY LAKE 9050 12.5 11.2 112 14.1 14.8 95
MONTE CRISTO 8960 27.8 25.7 108 27.2 21.8 125
SALT RIVER SUMMIT 7600 14.3 12.6 113 16.9 16.3 104
TRIAL LAKE 9960 25.1 21.5 117 24.2 21.3 114
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Basin wide percent of average 117 112
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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.