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: DECEMBER 7 , 2001
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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 4.1 4.9 84 8.6 6.8 126
COTTONWOOD CREEK 7600 6.0 5.6 107 8.9 8.9 100
GRANITE CREEK 6770 5.2 4.2 124 9.1 6.0 152
GRASSY LAKE 7265 8.1 9.0 90 12.3 10.9 113
GROS VENTRE SUMMIT 8775 5.6 4.5 124 5.0 4.6 109
LEWIS LAKE DIVIDE 7860 9.7 9.1 107 11.8 11.1 106
PHILLIPS BENCH 8200 9.5 7.6 125 11.0 8.4 131
SALT RIVER SUMMIT 7600 4.2 3.2 131 6.4 5.7 112
SNAKE RIVER STATION 6920 -M 4.8 * -M 7.2 *
SPRING CREEK DIVIDE 9000 6.8 8.0 85 9.6 8.3 116
THUMB DIVIDE 7980 4.9 4.7 104 7.3 6.0 122
TOGWOTEE PASS 9580 8.5 7.9 108 8.6 8.0 108
TWO OCEAN PLATEAU 9360 10.6 9.3 114 5.8 9.0 64
WILLOW CREEK 8450 7.3 9.0 81 12.9 10.3 125
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Basin wide percent of average 104 113
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 7.4 7.9 94 6.9 6.4 108
BLACK BEAR 7950 13.9 11.2 124 15.0 11.7 128
CANYON 7940 4.6 3.8 121 5.8 5.4 107
FISHER CREEK 9100 10.2 10.6 96 10.3 10.0 103
MADISON PLATEAU 7750 7.7 7.2 107 11.3 8.0 141
NORTHEAST ENTRANCE 7350 1.8 3.0 60 3.8 4.5 84
PARKER PEAK 9400 6.3 7.5 84 5.5 6.1 90
SYLVAN LAKE 8420 6.3 7.2 88 8.4 8.1 104
THUMB DIVIDE 7980 4.9 4.7 104 7.3 6.0 122
TWO OCEAN PLATEAU 9360 10.6 9.3 114 5.8 9.0 64
WHISKEY CREEK 6800 4.8 4.6 104 8.6 6.6 130
WHITE MILL 8700 7.6 7.6 100 7.5 8.2 91
WOLVERINE 7650 2.4 3.5 69 4.1 4.6 89
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Basin wide percent of average 100 106
WIND RIVER
BURROUGHS CREEK 8750 5.5 4.4 125 6.0 5.5 109
COLD SPRINGS 9630 1.5 3.4 44 2.2 4.2 52
DEER PARK 9700 6.5 5.0 130 -M -M *
HOBBS PARK 10100 4.2 5.9 71 3.5 5.0 70
LITTLE WARM 9620 3.5 3.8 92 4.7 4.7 100
SOUTH PASS 9040 5.2 5.7 91 6.3 6.0 105
ST. LAWRENCE ALT 8620 .9 3.0 30 1.9 3.5 54
TOGWOTEE PASS 9580 8.5 7.9 108 8.6 8.0 108
TOWNSEND CREEK 8700 1.6 3.3 48 2.0 4.7 43
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Basin wide percent of average 88 85
BIGHORN BASIN
BALD MTN. 9375 6.1 6.7 91 5.5 5.8 95
BEAR TRAP MEADOW 7900 1.8 1.8 100 3.9 3.6 108
BLACKWATER 9780 7.6 8.7 87 6.5 7.4 88
BONE SPRINGS DIV 9350 5.4 5.8 93 5.3 5.2 102
EVENING STAR 9200 7.9 9.6 82 9.7 9.0 108
GRAVE SPRINGS 8550 1.6 2.9 55 4.0 3.8 105
KIRWIN 9550 3.8 4.6 83 4.1 4.4 93
MARQUETTE 8760 1.3 4.0 32 1.5 3.9 38
MIDDLE POWDER 7760 1.7 4.0 42 4.0 4.9 82
OWL CREEK 8975 1.1 2.1 52 1.6 2.3 70
POWDER RIVER PASS 9480 4.4 3.7 119 5.8 4.3 135
SHELL CREEK 9580 6.3 5.5 115 6.0 4.7 128
SYLVAN LAKE 8420 6.3 7.2 88 8.4 8.1 104
SYLVAN ROAD 8120 2.9 4.1 71 6.9 7.5 92
TIMBER CREEK 7950 .5 2.4 21 1.7 3.4 50
YOUNTS PEAK 8350 5.0 5.3 94 6.0 5.5 109
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Basin wide percent of average 81 97
SHOSHONE RIVER
BLACKWATER 9780 7.6 8.7 87 6.5 7.4 88
EVENING STAR 9200 7.9 9.6 82 9.7 9.0 108
KIRWIN 9550 3.8 4.6 83 4.1 4.4 93
MARQUETTE 8760 1.3 4.0 32 1.5 3.9 38
SYLVAN LAKE 8420 6.3 7.2 88 8.4 8.1 104
SYLVAN ROAD 8120 2.9 4.1 71 6.9 7.5 92
YOUNTS PEAK 8350 5.0 5.3 94 6.0 5.5 109
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Basin wide percent of average 80 94
POWDER-TONGUE
BEAR TRAP MEADOW 7900 1.8 1.8 100 3.9 3.6 108
BIG GOOSE 7990 2.8 -M * 4.8 4.2 114
BONE SPRINGS DIV 9350 5.4 5.8 93 5.3 5.2 102
BURGESS JUNCTION 7880 2.3 3.9 59 4.0 4.4 91
CLOUD PEAK RESERVOIR 9860 4.2 4.1 102 5.3 5.4 98
DOME LAKE 8880 4.0 4.5 89 6.0 5.1 118
GRAVE SPRINGS 8550 1.6 2.9 55 4.0 3.8 105
HANSEN SAWMILL 8760 1.4 2.3 61 3.4 3.4 100
MIDDLE POWDER 7760 1.7 4.0 42 4.0 4.9 82
POWDER RIVER PASS 9480 4.4 3.7 119 5.8 4.3 135
SUCKER CREEK 8880 3.3 3.6 92 5.4 4.9 110
TIE CREEK 6870 .8 1.3 62 4.1 3.7 111
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Basin wide percent of average 82 106
BELLE FOURCHE
BLIND PARK 6890 1.7 2.2 77 3.8 3.9 97
COLE CANYON 5910 .5 -M * 2.0 -M *
NORTH RAPID CREEK 6130 2.2 -M * 3.1 3.5 89
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Basin wide percent of average 77* 93
UPPER N. PLATTE RIVER
COLUMBINE 9400 5.0 5.9 85 6.5 7.2 90
DIVIDE PEAK 8800 5.1 5.9 86 6.1 6.8 90
ELK RIVER 8700 3.6 3.8 95 5.4 5.8 93
JOE WRIGHT 10120 6.7 6.9 97 7.1 8.4 85
NORTH FRENCH CREEK 10100 4.7 8.9 53 4.9 8.2 60
OLD BATTLE 10000 8.3 10.2 81 10.0 10.4 96
SAGE CREEK BASIN 7850 3.5 -M * 6.6 -M *
SOUTH BRUSH CREEK 8400 2.5 3.3 76 3.3 5.6 59
TOWER 10500 10.3 14.2 73 10.9 11.8 92
WEBBER SPRINGS 9200 6.6 7.6 87 7.9 8.6 92
WILLOW CREEK PASS 9540 2.7 4.0 68 3.7 4.7 79
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Basin wide percent of average 79 85
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 4.1 6.9 59 4.8 6.9 70
CASPER MTN. 7900 3.4 5.1 67 5.4 5.6 96
DEADMAN HILL 10220 2.9 5.5 53 4.1 5.7 72
DEER PARK 9700 6.5 5.0 130 -M -M *
LAPRELE CREEK 8320 1.6 3.6 44 4.5 4.6 98
RENO HILL 8400 3.0 4.8 62 4.6 5.4 85
ROACH 9700 2.6 4.9 53 4.1 5.8 71
SAND LAKE 10080 7.1 10.4 68 7.2 7.9 91
SOUTH PASS 9040 5.2 5.7 91 6.3 6.0 105
WINDY PEAK 7840 1.2 2.6 46 3.7 4.0 92
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Basin wide percent of average 69 86
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 3.7 2.2 168 1.8 4.8 38
DIVIDE PEAK 8800 5.1 5.9 86 6.1 6.8 90
OLD BATTLE 10000 8.3 10.2 81 10.0 10.4 96
SANDSTONE RS 8150 3.1 2.9 107 6.3 6.1 103
WHISKEY PARK 8950 6.4 7.0 91 8.6 8.6 100
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Basin wide percent of average 94 89
UPPER GREEN RIVER
BIG SANDY OPENING 9100 6.1 4.6 133 5.4 4.6 117
BLIND BULL SUM 8650 9.6 8.3 116 9.0 7.2 125
EAST RIM DIVIDE 7930 3.3 3.8 87 5.2 3.8 137
ELKHART PARK G.S. 9400 4.9 4.1 120 5.6 4.7 119
GROS VENTRE SUMMIT 8775 5.6 4.5 124 5.0 4.6 109
KENDALL R.S. 7740 3.8 3.9 97 6.2 4.5 138
LOOMIS PARK 8240 6.2 5.1 122 7.2 5.5 131
NEW FORK LAKE 8340 3.5 3.3 106 4.5 4.2 107
SNIDER BASIN 8250 1.7 4.3 40 5.7 5.1 112
SPRING CREEK DIVIDE 9000 6.8 8.0 85 9.6 8.3 116
TRIPLE PEAK 8500 8.0 7.4 108 10.2 7.3 140
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Basin wide percent of average 104 123
LOWER GREEN RIVER
HAMS FORK 7840 4.4 3.1 142 4.1 3.9 105
HEWINTA 9500 3.5 2.5 140 5.7 5.2 110
HICKERSON PARK 9150 1.6 1.8 89 3.8 3.4 112
HOLE-IN-ROCK 9150 2.1 1.7 124 3.9 3.1 126
INDIAN CREEK 9425 9.2 7.9 116 8.4 7.8 108
KELLEY R.S. 8180 5.6 4.9 114 7.6 6.4 119
STEEL CREEK PARK 10100 4.5 4.5 100 5.4 5.6 96
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Basin wide percent of average 117 110
UPPER BEAR RIVER
BUG LAKE 7950 5.1 4.8 106 8.1 6.3 129
HAYDEN FORK 9400 5.8 3.7 157 9.1 6.8 134
KELLEY R.S. 8180 5.6 4.9 114 7.6 6.4 119
LILY LAKE 9050 4.4 3.4 129 6.8 6.2 110
MONTE CRISTO 8960 8.0 6.2 129 9.8 8.0 123
SALT RIVER SUMMIT 7600 4.2 3.2 131 6.4 5.7 112
TRIAL LAKE 9960 8.6 6.5 132 11.0 7.5 147
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Basin wide percent of average 128 125
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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.