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 SUNDAY: NOVEMBER 20 , 2005
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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 2.9 2.7 107 6.5 4.6 141
COTTONWOOD CREEK 7600 2.7 3.1 87 6.0 6.2 97
GRANITE CREEK 6770 2.5 2.2 114 4.7 4.1 115
GRASSY LAKE 7265 5.5 5.1 108 9.7 7.4 131
GROS VENTRE SUMMIT 8750 3.1 2.9 107 4.4 3.4 129
LEWIS LAKE DIVIDE 7850 7.0 5.0 140 10.5 7.5 140
PHILLIPS BENCH 8200 4.8 4.3 112 7.0 5.6 125
SALT RIVER SUMMIT 7600 1.4 1.6 87 3.3 3.9 85
SNAKE RIVER STATION 6920 2.7 2.6 104 7.0 4.9 143
SPRING CREEK DIVIDE 9000 4.3 4.6 93 5.1 5.6 91
THUMB DIVIDE 7980 3.9 2.7 144 6.3 4.2 150
TOGWOTEE PASS 9580 6.5 5.3 123 7.0 5.7 123
TWO OCEAN PLATEAU 9240 11.3 6.3 179 9.5 6.4 148
WILLOW CREEK 8450 3.7 5.4 69 8.1 7.3 111
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Basin wide percent of average 116 124
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 7.0 5.4 130 5.6 4.5 124
BLACK BEAR 8170 10.2 6.8 150 11.8 8.0 148
CANYON 8090 3.5 2.2 159 5.6 3.7 151
FISHER CREEK 9100 11.2 6.5 172 11.2 7.5 149
MADISON PLATEAU 7750 5.2 4.2 124 8.5 5.5 155
NORTHEAST ENTRANCE 7350 1.2 1.5 80 3.7 3.1 119
PARKER PEAK 9400 4.5 5.1 88 5.3 4.4 120
SYLVAN LAKE 8420 -M 4.7 * -M 5.5 *
THUMB DIVIDE 7980 3.9 2.7 144 6.3 4.2 150
TWO OCEAN PLATEAU 9240 11.3 6.3 179 9.5 6.4 148
WHISKEY CREEK 6800 2.7 2.5 108 6.6 4.6 143
WHITE MILL 8700 5.9 4.7 126 6.6 5.9 112
WOLVERINE 7650 1.4 2.0 70 2.6 3.5 74
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Basin wide percent of average 136 136
WIND RIVER
BURROUGHS CREEK 8750 2.5 2.7 93 4.8 3.7 130
COLD SPRINGS 9630 1.4 2.4 58 3.6 3.4 106
DEER PARK 9700 2.6 4.0 65 4.0 5.5 73
HOBBS PARK 10100 2.4 4.2 57 4.0 3.7 108
LITTLE WARM 9370 2.4 2.6 92 4.2 3.6 117
SOUTH PASS 9040 2.4 3.7 65 3.9 4.6 85
ST. LAWRENCE ALT 8620 .4 2.1 19 2.5 2.9 86
TOGWOTEE PASS 9580 6.5 5.3 123 7.0 5.7 123
TOWNSEND CREEK 8700 1.2 2.3 52 3.9 3.7 105
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Basin wide percent of average 74 103
BIGHORN BASIN
BALD MTN. 9380 3.7 4.9 76 3.3 4.3 77
BEAR TRAP MEADOW 8200 .5 1.3 38 2.7 2.8 96
BLACKWATER 9780 6.8 5.9 115 5.9 5.6 105
BONE SPRINGS DIV 9350 4.2 4.5 93 4.4 4.1 107
EVENING STAR 9200 5.8 6.2 94 8.2 6.3 130
GRAVE SPRINGS 8550 .8 2.2 36 3.4 3.1 110
KIRWIN 9550 4.3 3.4 126 4.6 3.3 139
MARQUETTE 8760 .9 3.1 29 3.2 3.5 91
MIDDLE POWDER 7760 1.5 2.8 54 3.2 4.1 78
OWL CREEK 8975 .6 1.6 37 2.7 1.8 150
POWDER RIVER PASS 9480 1.5 2.6 58 3.2 3.3 97
SHELL CREEK 9580 3.3 4.3 77 3.3 3.6 92
SYLVAN LAKE 8420 -M 4.7 * -M 5.5 *
SYLVAN ROAD 7120 1.8 2.3 78 5.6 5.0 112
TIMBER CREEK 7950 .5 2.0 25 2.7 2.5 108
YOUNTS PEAK 8350 -M 3.4 * 6.9 4.0 172
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Basin wide percent of average 77 110
SHOSHONE RIVER
BLACKWATER 9780 6.8 5.9 115 5.9 5.6 105
EVENING STAR 9200 5.8 6.2 94 8.2 6.3 130
KIRWIN 9550 4.3 3.4 126 4.6 3.3 139
MARQUETTE 8760 .9 3.1 29 3.2 3.5 91
SYLVAN LAKE 8420 -M 4.7 * -M 5.5 *
SYLVAN ROAD 7120 1.8 2.3 78 5.6 5.0 112
YOUNTS PEAK 8350 -M 3.4 * 6.9 4.0 172
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Basin wide percent of average 94 124
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .5 1.3 38 2.7 2.8 96
BIG GOOSE 7990 1.2 1.8 67 3.4 2.7 126
BONE SPRINGS DIV 9350 4.2 4.5 93 4.4 4.1 107
BURGESS JUNCTION 7880 2.5 3.0 83 4.1 3.5 117
CLOUD PEAK RESERVOIR 9860 3.1 3.0 103 4.4 4.1 107
DOME LAKE 8880 2.9 3.5 83 4.1 4.1 100
GRAVE SPRINGS 8550 .8 2.2 36 3.4 3.1 110
HANSEN SAWMILL 8360 .9 1.5 60 2.7 2.7 100
MIDDLE POWDER 7760 1.5 2.8 54 3.2 4.1 78
POWDER RIVER PASS 9480 1.5 2.6 58 3.2 3.3 97
SUCKER CREEK 8880 2.1 2.6 81 4.5 3.8 118
TIE CREEK 6870 1.1 1.2 92 4.2 3.3 127
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Basin wide percent of average 74 106
BELLE FOURCHE
BLIND PARK 6890 1.0 1.7 59 2.8 3.8 74
COLE CANYON 5910 .9 1.6 56 2.7 -M *
NORTH RAPID CREEK 6130 1.3 1.2 108 2.4 3.4 71
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Basin wide percent of average 71 72
UPPER N. PLATTE RIVER
COLUMBINE 9160 4.3 3.4 126 8.1 5.0 162
DIVIDE PEAK 8860 2.2 3.8 58 6.3 5.0 126
ELK RIVER 8700 1.5 2.1 71 5.2 4.1 127
JOE WRIGHT 10120 5.5 5.1 108 8.1 6.2 131
NORTH FRENCH CREEK 10130 6.9 6.1 113 8.3 6.0 138
OLD BATTLE 9920 6.9 6.7 103 9.0 7.2 125
SAGE CREEK BASIN 7850 1.3 2.2 59 4.1 2.9 141
SOUTH BRUSH CREEK 8440 2.3 2.1 110 5.5 4.3 128
TOWER 10500 8.5 9.2 92 11.8 8.2 144
WEBBER SPRINGS 9250 4.0 4.8 83 8.6 6.1 141
WILLOW CREEK PASS 9540 2.5 2.8 89 4.6 3.6 128
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Basin wide percent of average 95 136
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 5.0 4.5 111 4.0 4.9 82
CASPER MTN. 7850 1.2 3.6 33 4.6 4.2 110
DEADMAN HILL 10220 4.4 4.0 110 6.3 4.3 147
DEER PARK 9700 2.6 4.0 65 4.0 5.5 73
LAPRELE CREEK 8375 .9 2.4 38 2.3 3.5 66
RENO HILL 8500 2.4 3.3 73 4.2 4.2 100
ROACH 9700 3.7 3.1 119 6.1 4.2 145
SAND LAKE 10050 8.2 7.0 117 8.8 5.7 154
SOUTH PASS 9040 2.4 3.7 65 3.9 4.6 85
WINDY PEAK 7900 .8 1.7 47 2.7 3.0 90
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Basin wide percent of average 85 106
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.2 1.4 86 4.4 3.5 126
DIVIDE PEAK 8860 2.2 3.8 58 6.3 5.0 126
OLD BATTLE 9920 6.9 6.7 103 9.0 7.2 125
SANDSTONE RS 8150 1.3 1.6 81 5.3 4.4 120
WHISKEY PARK 8950 3.3 4.5 73 6.8 6.0 113
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Basin wide percent of average 83 122
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.7 2.9 59 2.8 3.4 82
BLIND BULL SUM 8900 4.3 4.9 88 4.4 4.9 90
EAST RIM DIVIDE 7930 1.4 2.2 64 2.4 2.7 89
ELKHART PARK G.S. 9400 2.2 2.5 88 3.2 3.5 91
GROS VENTRE SUMMIT 8750 3.1 2.9 107 4.4 3.4 129
KENDALL R.S. 7740 1.9 2.2 86 3.5 3.2 109
LOOMIS PARK 8240 2.6 3.0 87 3.5 3.8 92
NEW FORK LAKE 8340 1.5 1.9 79 2.3 3.0 77
SNIDER BASIN 8060 2.5 2.4 104 3.1 3.5 89
SPRING CREEK DIVIDE 9000 4.3 4.6 93 5.1 5.6 91
TRIPLE PEAK 8500 4.3 4.2 102 6.0 5.0 120
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Basin wide percent of average 88 97
LOWER GREEN RIVER
HAMS FORK 7840 1.0 1.6 62 2.5 2.8 89
HEWINTA 9500 1.3 1.6 81 4.0 4.0 100
HICKERSON PARK 9100 .0 1.1 0 2.4 2.7 89
HOLE-IN-ROCK 9150 1.2 1.2 100 2.7 2.5 108
INDIAN CREEK 9425 4.5 4.6 98 4.8 5.4 89
KELLEY R.S. 8180 2.1 2.9 72 3.7 4.4 84
STEEL CREEK PARK 10100 2.4 3.1 77 4.0 4.2 95
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Basin wide percent of average 78 93
UPPER BEAR RIVER
BUG LAKE 7950 1.8 2.9 62 3.5 4.5 78
HAYDEN FORK 9100 2.1 2.2 95 4.3 4.8 90
KELLEY R.S. 8180 2.1 2.9 72 3.7 4.4 84
LILY LAKE 9050 1.4 2.1 67 3.1 4.5 69
MONTE CRISTO 8960 3.4 3.7 92 5.1 5.7 89
SALT RIVER SUMMIT 7600 1.4 1.6 87 3.3 3.9 85
TRIAL LAKE 9960 3.8 4.2 90 4.8 5.3 91
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Basin wide percent of average 82 84
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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.