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 8 , 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 19.5 16.6 117 23.5 19.3 122
COTTONWOOD CREEK 7600 26.2 19.9 132 28.1 24.1 117
GRANITE CREEK 6770 19.4 17.0 114 21.6 18.0 120
GRASSY LAKE 7265 34.0 31.1 109 37.5 32.2 116
GROS VENTRE SUMMIT 8750 10.9 12.2 89 11.6 11.3 103
LEWIS LAKE DIVIDE 7850 37.2 31.2 119 36.1 32.8 110
PHILLIPS BENCH 8200 28.9 25.2 115 29.6 25.7 115
SALT RIVER SUMMIT 7600 14.7 12.8 115 17.3 16.5 105
SNAKE RIVER STATION 6920 19.3 17.5 110 24.0 20.2 119
SPRING CREEK DIVIDE 9000 28.1 23.3 121 -M 23.5 *
THUMB DIVIDE 7980 16.8 16.4 102 17.2 16.7 103
TOGWOTEE PASS 9580 22.3 21.7 103 23.5 21.6 109
TWO OCEAN PLATEAU 9240 32.1 24.5 131 24.8 24.4 102
WILLOW CREEK 8450 31.6 26.7 118 35.6 28.3 126
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Basin wide percent of average 115 114
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 19.7 20.8 95 17.3 17.8 97
BLACK BEAR 8170 44.4 34.6 128 -M 35.0 *
CANYON 8090 13.1 12.0 109 15.6 13.6 115
FISHER CREEK 9100 36.8 30.9 119 33.9 32.0 106
MADISON PLATEAU 7750 24.1 22.0 110 28.7 23.2 124
NORTHEAST ENTRANCE 7350 9.2 10.1 91 11.3 11.3 100
PARKER PEAK 9400 16.5 19.0 87 14.9 14.3 104
SYLVAN LAKE 8420 15.8 19.7 80 19.9 18.6 107
THUMB DIVIDE 7980 16.8 16.4 102 17.2 16.7 103
TWO OCEAN PLATEAU 9240 32.1 24.5 131 24.8 24.4 102
WHISKEY CREEK 6800 14.4 15.2 95 21.0 18.3 115
WHITE MILL 8700 23.4 21.3 110 21.3 23.7 90
WOLVERINE 7650 8.1 10.9 74 8.1 11.6 70
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Basin wide percent of average 107 104
WIND RIVER
BURROUGHS CREEK 8750 12.4 13.1 95 14.5 14.3 101
COLD SPRINGS 9630 4.6 7.6 61 7.3 8.9 82
DEER PARK 9700 15.5 14.9 104 18.7 18.8 99
HOBBS PARK 10100 9.5 12.5 76 9.9 10.6 93
LITTLE WARM 9370 8.0 10.1 79 10.7 11.5 93
SOUTH PASS 9040 14.9 14.7 101 15.6 15.8 99
ST. LAWRENCE ALT 8620 3.0 6.2 48 5.6 7.4 76
TOGWOTEE PASS 9580 22.3 21.7 103 23.5 21.6 109
TOWNSEND CREEK 8700 5.7 7.2 79 8.3 9.5 87
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Basin wide percent of average 89 96
BIGHORN BASIN
BALD MTN. 9380 13.2 16.8 79 10.5 14.9 70
BEAR TRAP MEADOW 8200 4.6 4.6 100 6.5 6.8 96
BLACKWATER 9780 19.8 21.4 93 17.9 18.0 99
BONE SPRINGS DIV 9350 11.8 13.8 86 11.9 12.3 97
EVENING STAR 9200 22.4 26.1 86 24.8 22.6 110
GRAVE SPRINGS 8550 7.8 7.8 100 9.7 8.2 118
KIRWIN 9550 8.6 9.6 90 9.4 9.7 97
MARQUETTE 8760 1.8 7.2 25 6.1 8.0 76
MIDDLE POWDER 7760 10.3 9.6 107 8.8 10.2 86
OWL CREEK 8975 2.4 4.4 55 4.6 4.7 98
POWDER RIVER PASS 9480 8.3 9.2 90 9.9 10.5 94
SHELL CREEK 9580 11.9 12.4 96 11.0 11.4 96
SYLVAN LAKE 8420 15.8 19.7 80 19.9 18.6 107
SYLVAN ROAD 7120 9.4 11.8 80 14.9 16.1 93
TIMBER CREEK 7950 1.6 4.6 35 4.0 5.9 68
YOUNTS PEAK 8350 12.9 15.1 85 15.4 14.2 108
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Basin wide percent of average 84 96
SHOSHONE RIVER
BLACKWATER 9780 19.8 21.4 93 17.9 18.0 99
EVENING STAR 9200 22.4 26.1 86 24.8 22.6 110
KIRWIN 9550 8.6 9.6 90 9.4 9.7 97
MARQUETTE 8760 1.8 7.2 25 6.1 8.0 76
SYLVAN LAKE 8420 15.8 19.7 80 19.9 18.6 107
SYLVAN ROAD 7120 9.4 11.8 80 14.9 16.1 93
YOUNTS PEAK 8350 12.9 15.1 85 15.4 14.2 108
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Basin wide percent of average 82 101
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.6 4.6 100 6.5 6.8 96
BIG GOOSE 7990 5.2 8.2 63 7.4 7.2 103
BONE SPRINGS DIV 9350 11.8 13.8 86 11.9 12.3 97
BURGESS JUNCTION 7880 8.2 9.5 86 9.4 10.1 93
CLOUD PEAK RESERVOIR 9860 10.7 10.7 100 9.8 10.5 93
DOME LAKE 8880 8.8 10.0 88 9.5 10.9 87
GRAVE SPRINGS 8550 7.8 7.8 100 9.7 8.2 118
HANSEN SAWMILL 8360 3.3 5.5 60 5.4 6.7 81
MIDDLE POWDER 7760 10.3 9.6 107 8.8 10.2 86
POWDER RIVER PASS 9480 8.3 9.2 90 9.9 10.5 94
SUCKER CREEK 8880 8.7 9.6 91 11.4 11.2 102
TIE CREEK 6870 4.3 5.3 81 8.5 8.4 101
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Basin wide percent of average 89 96
BELLE FOURCHE
BLIND PARK 6890 6.6 7.7 86 9.2 9.7 95
COLE CANYON 5910 4.3 5.3 81 7.7 -M *
NORTH RAPID CREEK 6130 5.6 7.2 78 7.2 7.7 94
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Basin wide percent of average 82 94
UPPER N. PLATTE RIVER
COLUMBINE 9160 27.9 22.9 122 29.7 21.9 136
DIVIDE PEAK 8860 15.3 16.6 92 18.2 17.9 102
ELK RIVER 8700 17.8 16.9 105 18.1 16.9 107
JOE WRIGHT 10120 18.6 18.1 103 22.3 21.3 105
NORTH FRENCH CREEK 10130 29.4 24.1 122 28.4 21.2 134
OLD BATTLE 9920 31.7 27.8 114 36.0 29.9 120
SAGE CREEK BASIN 7850 10.8 9.7 111 12.6 10.4 121
SOUTH BRUSH CREEK 8440 10.7 10.8 99 14.5 14.0 104
TOWER 10500 45.9 39.4 116 -M 33.4 *
WEBBER SPRINGS 9250 23.4 22.8 103 29.0 23.2 125
WILLOW CREEK PASS 9540 10.8 10.1 107 11.6 11.0 105
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Basin wide percent of average 111 117
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 21.4 20.0 107 18.1 18.5 98
CASPER MTN. 7850 13.7 11.9 115 14.8 11.8 125
DEADMAN HILL 10220 13.5 13.7 99 14.9 14.1 106
DEER PARK 9700 15.5 14.9 104 18.7 18.8 99
LAPRELE CREEK 8375 8.2 9.4 87 9.3 10.6 88
RENO HILL 8500 12.9 11.2 115 14.3 12.3 116
ROACH 9700 12.6 14.6 86 15.6 15.8 99
SAND LAKE 10050 27.6 26.9 103 26.5 20.4 130
SOUTH PASS 9040 14.9 14.7 101 15.6 15.8 99
WINDY PEAK 7900 5.6 6.6 85 7.7 9.0 86
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Basin wide percent of average 101 106
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 11.9 10.4 114 13.9 13.1 106
DIVIDE PEAK 8860 15.3 16.6 92 18.2 17.9 102
OLD BATTLE 9920 31.7 27.8 114 36.0 29.9 120
SANDSTONE RS 8150 13.1 13.3 98 18.6 16.4 113
WHISKEY PARK 8950 33.0 25.6 129 30.7 24.6 125
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Basin wide percent of average 112 115
UPPER GREEN RIVER
BIG SANDY OPENING 9080 13.5 12.7 106 13.7 11.8 116
BLIND BULL SUM 8900 25.4 24.4 104 19.1 19.9 96
EAST RIM DIVIDE 7930 10.0 11.6 86 10.4 10.7 97
ELKHART PARK G.S. 9400 12.2 11.7 104 13.0 11.5 113
GROS VENTRE SUMMIT 8750 10.9 12.2 89 11.6 11.3 103
KENDALL R.S. 7740 13.5 13.2 102 14.1 13.0 108
LOOMIS PARK 8240 17.4 15.3 114 17.8 15.4 116
NEW FORK LAKE 8340 9.9 10.1 98 9.6 10.0 96
SNIDER BASIN 8060 16.5 13.0 127 15.4 14.3 108
SPRING CREEK DIVIDE 9000 28.1 23.3 121 -M 23.5 *
TRIPLE PEAK 8500 27.1 22.0 123 27.7 21.7 128
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Basin wide percent of average 109 109
LOWER GREEN RIVER
HAMS FORK 7840 13.8 11.6 119 12.6 10.8 117
HEWINTA 9500 10.7 9.8 109 12.9 12.3 105
HICKERSON PARK 9100 3.8 6.2 61 6.1 6.6 92
HOLE-IN-ROCK 9150 6.1 6.1 100 6.8 6.2 110
INDIAN CREEK 9425 28.0 23.7 118 -M 22.1 *
KELLEY R.S. 8180 18.5 14.8 125 20.2 18.0 112
STEEL CREEK PARK 10100 13.6 13.4 101 14.8 13.7 108
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Basin wide percent of average 110 109
UPPER BEAR RIVER
BUG LAKE 7950 21.8 18.1 120 19.3 16.9 114
HAYDEN FORK 9100 18.4 14.1 130 21.5 18.0 119
KELLEY R.S. 8180 18.5 14.8 125 20.2 18.0 112
LILY LAKE 9050 12.8 11.4 112 14.3 15.0 95
MONTE CRISTO 8960 29.6 26.1 113 28.6 22.1 129
SALT RIVER SUMMIT 7600 14.7 12.8 115 17.3 16.5 105
TRIAL LAKE 9960 26.0 21.8 119 24.4 21.6 113
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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.