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: JANUARY 3 , 2014
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 8.6 7.4 116 9.8 10.3 95
BLACK BEAR 8170 16.9 18.3 92 16.7 18.6 90
BLIND BULL SUM 8650 10.3 9.4 110 8.5 9.6 89
COTTONWOOD CREEK 7670 9.1 8.7 105 10.7 11.6 92
EAST RIM DIVIDE 7930 5.6 4.5 124 5.4 5.7 95
GRAND TARGHEE 9260 21.6 17.7 122 15.6 15.3 102
GRANITE CREEK 6770 6.3 6.7 94 7.6 9.8 78
GRASSY LAKE 7265 12.9 13.2 98 14.8 17.7 84
GROS VENTRE SUMMIT 8750 6.4 6.3 102 5.9 6.3 94
GUNSIGHT PASS 9820 7.5 6.3 119 7.4 6.7 110
LEWIS LAKE DIVIDE 7850 10.7 13.6 79 13.2 17.4 76
PHILLIPS BENCH 8200 10.0 11.3 88 11.0 13.4 82
SALT RIVER SUMMIT 7760 5.0 5.0 100 6.9 7.8 88
SNAKE RIVER STATION 6920 6.8 6.7 101 9.3 11.4 82
SPRING CREEK DIVIDE 9000 9.6 10.4 92 10.1 11.2 90
THUMB DIVIDE 7980 5.7 6.4 89 6.4 9.2 70
TOGWOTEE PASS 9580 11.8 11.3 104 11.5 11.9 97
TWO OCEAN PLATEAU 9240 14.2 12.9 110 11.7 13.2 89
WILLOW CREEK 8380 11.7 11.3 104 15.1 16.1 94
YOUNTS PEAK 8350 -M 7.1 * -M 8.0 *
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Basin Index (%) 102 89
MADISON-GALLATIN
BLACK BEAR 8170 16.9 18.3 92 16.7 18.6 90
CANYON 7870 5.4 5.7 95 6.9 8.1 85
MADISON PLATEAU 7750 9.0 10.5 86 10.3 13.0 79
WEST YELLOWSTONE 6700 5.0 4.8 104 6.0 7.3 82
WHISKEY CREEK 6800 6.4 7.0 91 8.3 10.2 81
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Basin Index (%) 92 84
YELLOWSTONE
BEARTOOTH LAKE 9360 11.1 10.2 109 9.6 9.4 102
BURNT MTN 5880 4.2 1.9 221 9.8 6.9 142
CANYON 7870 5.4 5.7 95 6.9 8.1 85
COLE CREEK 7850 9.0 6.4 141 6.8 6.5 105
EVENING STAR 9200 15.1 11.9 127 15.8 13.6 116
FISHER CREEK 9100 16.2 15.4 105 14.8 15.5 95
NORTHEAST ENTRANCE 7350 4.7 4.3 109 5.6 6.3 89
PARKER PEAK 9400 12.6 10.2 124 11.9 8.7 137
SYLVAN LAKE 8420 10.1 9.4 107 12.2 11.5 106
THUMB DIVIDE 7980 5.7 6.4 89 6.4 9.2 70
TWO OCEAN PLATEAU 9240 14.2 12.9 110 11.7 13.2 89
WHITE MILL 8700 12.2 10.3 118 10.4 11.6 90
WOLVERINE 7650 6.4 5.0 128 5.8 6.4 91
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Basin Index (%) 115 101
WIND RIVER
BURROUGHS CREEK 8750 -M 6.4 * -M 7.9 *
CASTLE CREEK 8400 3.1 -M * 4.9 -M *
COLD SPRINGS 9630 4.9 3.2 153 6.6 5.1 129
DEER PARK 9700 5.2 6.6 79 7.0 9.4 74
HOBBS PARK 10100 6.5 6.7 97 6.2 6.4 97
KIRWIN 9550 7.2 4.4 164 6.4 5.8 110
LITTLE WARM 9370 5.8 4.6 126 7.0 6.3 111
OWL CREEK 8975 3.7 2.6 142 3.7 2.9 128
SOUTH PASS 9040 5.8 6.8 85 6.0 8.6 70
ST. LAWRENCE ALT 8620 2.8 3.2 88 5.4 4.4 123
TOGWOTEE PASS 9580 11.8 11.3 104 11.5 11.9 97
TOWNSEND CREEK 8700 3.3 4.2 79 4.6 5.9 78
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Basin Index (%) 106 97
BIGHORN BASIN
BALD MTN. 9380 11.8 8.8 134 9.6 8.1 119
BEAR TRAP MEADOW 8200 4.9 2.6 188 5.7 4.3 133
BONE SPRINGS DIV 9350 8.6 7.4 116 6.9 7.3 95
GRAVE SPRINGS 8550 5.9 3.5 169 6.7 5.2 129
KIRWIN 9550 7.2 4.4 164 6.4 5.8 110
MARQUETTE 8760 4.6 -M * 6.1 -M *
MIDDLE POWDER 7760 8.1 5.0 162 7.4 6.1 121
OWL CREEK 8975 3.7 2.6 142 3.7 2.9 128
POWDER RIVER PASS 9480 6.4 4.9 131 6.8 6.1 111
SHELL CREEK 9580 8.0 7.3 110 6.7 6.6 102
TIMBER CREEK 7950 3.4 2.2 155 4.8 3.9 123
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Basin Index (%) 140 115
SHOSHONE RIVER
BLACKWATER 9780 12.6 10.7 118 10.4 10.2 102
EVENING STAR 9200 15.1 11.9 127 15.8 13.6 116
MARQUETTE 8760 4.6 -M * 6.1 -M *
SYLVAN ROAD 7120 6.2 5.7 109 9.6 9.3 103
YOUNTS PEAK 8350 -M 7.1 * -M 8.0 *
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Basin Index (%) 120 108
POWDER RIVER
BEAR TRAP MEADOW 8200 4.9 2.6 188 5.7 4.3 133
CLOUD PEAK RESERVOIR 9860 8.1 6.4 127 8.3 6.4 130
GRAVE SPRINGS 8550 5.9 3.5 169 6.7 5.2 129
HANSEN SAWMILL 8360 4.3 3.1 139 5.9 4.1 144
MIDDLE POWDER 7760 8.1 5.0 162 7.4 6.1 121
POWDER RIVER PASS 9480 6.4 4.9 131 6.8 6.1 111
SOLDIER PARK 8720 3.8 -M * 5.6 -M *
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Basin Index (%) 148 127
TONGUE RIVER
BIG GOOSE 7990 4.7 3.8 124 7.0 5.4 130
BONE SPRINGS DIV 9350 8.6 7.4 116 6.9 7.3 95
BURGESS JUNCTION 7880 6.1 4.8 127 7.5 6.0 125
DOME LAKE 8880 4.1 5.6 73 5.6 6.8 82
LITTLE GOOSE 8870 -M -M * -M -M *
SUCKER CREEK 8880 7.9 5.3 149 8.8 6.8 129
TIE CREEK 6870 2.9 2.2 132 7.3 5.7 128
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Basin Index (%) 118 113
BELLE FOURCHE
COLE CANYON 5910 3.7 2.3 161 9.5 4.7 202
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Basin Index (%) 161 202
CHEYENNE RIVER BASIN
BLIND PARK 6890 4.7 3.3 142 10.6 6.1 174
NORTH RAPID CREEK 6130 4.4 3.2 138 10.2 5.1 200
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Basin Index (%) 140 186
UPPER N. PLATTE
ARAPAHO RIDGE 10960 10.5 9.8 107 10.5 11.1 95
BLACKHALL MTN 9820 14.3 -M * 15.5 -M *
COLUMBINE 9160 10.3 9.0 114 12.8 11.8 108
DIVIDE PEAK 8880 8.4 8.8 95 12.0 10.6 113
JOE WRIGHT 10120 7.7 9.6 80 12.5 12.3 102
LAPRELE CREEK 8375 3.3 4.0 82 5.3 6.0 88
MED BOW 10500 13.0 -M * 16.7 -M *
NORTH FRENCH CREEK 10130 14.7 12.0 122 16.2 12.4 131
NEVER SUMMER 10280 9.3 9.0 103 8.5 -M *
OLD BATTLE 10000 13.8 13.0 106 15.9 16.8 95
RAWAH 9020 5.8 4.7 123 8.7 7.6 114
SAGE CREEK BASIN 7850 4.8 6.1 79 6.8 7.8 87
SAND LAKE 10050 13.6 12.2 111 13.8 11.5 120
SOUTH BRUSH CREEK 8440 6.2 5.0 124 8.7 7.3 119
TOWER 10500 18.4 18.9 97 20.3 18.8 108
WEBBER SPRINGS 9250 9.6 9.9 97 11.9 12.8 93
WILLOW CREEK PASS 9540 6.4 5.6 114 7.3 6.6 111
ZIRKEL 9340 11.9 10.5 113 14.9 14.1 106
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Basin Index (%) 104 106
SWEETWATER
DEER PARK 9700 5.2 6.6 79 7.0 9.4 74
LARSEN CREEK 9000 2.4 -M * 5.3 -M *
SOUTH PASS 9040 5.8 6.8 85 6.0 8.6 70
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Basin Index (%) 82 72
LOWER N. PLATTE
CASPER MTN. 7900 9.3 6.0 155 9.2 7.5 123
LAPRELE CREEK 8375 3.3 4.0 82 5.3 6.0 88
RENO HILL 8400 9.1 5.9 154 11.2 7.2 156
WINDY PEAK 7900 2.9 3.1 94 5.5 5.2 106
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Basin Index (%) 129 120
LARAMIE RIVER
BROOKLYN LAKE 10240 10.2 8.1 126 10.7 9.5 113
CINNABAR PARK 9574 10.0 9.4 106 12.2 11.9 103
CROW CREEK 8330 3.5 4.6 76 6.3 5.6 112
DEADMAN HILL 10220 9.4 7.3 129 9.8 7.9 124
RAWAH 9020 5.8 4.7 123 8.7 7.6 114
ROACH 9700 7.6 7.0 109 10.0 9.1 110
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Basin Index (%) 113 112
S. PLATTE
BLACK MOUNTAIN 8920 5.4 -M * 6.9 -M *
CROW CREEK 8330 3.5 4.6 76 6.3 5.6 112
DEADMAN HILL 10220 9.4 7.3 129 9.8 7.9 124
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Basin Index (%) 108 119
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 5.3 4.4 120 9.3 7.2 129
DIVIDE PEAK 8880 8.4 8.8 95 12.0 10.6 113
ELK RIVER 8700 8.7 7.1 123 11.1 9.3 119
LITTLE SNAKE RIVER 8915 10.9 9.3 117 16.1 15.2 106
OLD BATTLE 10000 13.8 13.0 106 15.9 16.8 95
SAGE CREEK BASIN 7850 4.8 6.1 79 6.8 7.8 87
SANDSTONE RS 8150 5.4 4.7 115 9.5 8.8 108
WHISKEY PARK 8950 14.9 9.8 152 17.1 12.5 137
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Basin Index (%) 114 111
UPPER GREEN RIVER
BIG SANDY OPENING 9080 5.0 6.2 81 4.9 6.5 75
BLIND BULL SUM 8650 10.3 9.4 110 8.5 9.6 89
EAST RIM DIVIDE 7930 5.6 4.5 124 5.4 5.7 95
ELKHART PARK G.S. 9400 6.1 5.8 105 6.1 6.6 92
GROS VENTRE SUMMIT 8750 6.4 6.3 102 5.9 6.3 94
GUNSIGHT PASS 9820 7.5 6.3 119 7.4 6.7 110
KENDALL R.S. 7740 5.8 5.0 116 6.8 6.8 100
LOOMIS PARK 8240 6.5 6.8 96 7.8 8.4 93
NEW FORK LAKE 8340 4.7 4.7 100 4.5 5.3 85
POCKET CREEK 9360 4.7 -M * 4.6 -M *
SNIDER BASIN 8060 5.3 5.4 98 6.0 6.8 88
SPRING CREEK DIVIDE 9000 9.6 10.4 92 10.1 11.2 90
TRIPLE PEAK 8500 8.8 8.6 102 10.6 11.4 93
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Basin Index (%) 103 92
LOWER GREEN RIVER
BLACKS FORK JCT 8870 2.2 -M * 5.2 -M *
BUCK PASTURE 9700 4.4 -M * 6.9 -M *
EF BLACKS FORK GS 9360 1.7 -M * 4.5 -M *
HAMS FORK 7840 3.2 4.7 68 5.0 5.4 93
HEWINTA 9519 2.3 3.9 59 5.5 6.6 83
HICKERSON PARK 9145 3.7 2.9 128 5.1 5.0 102
HOLE-IN-ROCK 9150 2.7 3.0 90 4.8 4.7 102
INDIAN CREEK 9425 8.0 10.1 79 8.0 10.2 78
KELLEY R.S. 8180 5.3 6.3 84 7.1 8.7 82
SPIRIT LK 10235 5.0 -M * 7.6 -M *
STEEL CREEK PARK 10200 5.8 6.3 92 6.9 7.7 90
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Basin Index (%) 83 88
UPPER BEAR RIVER
BEAR RIVER RS 8777 2.8 -M * 5.4 -M *
BUG LAKE 7950 5.9 6.4 92 6.6 9.3 71
BURTS MILLER RANCH 8000 2.7 -M * 3.2 -M *
CHALK CREEK #1 8993 8.3 9.9 84 9.5 11.9 80
HAYDEN FORK 9212 4.3 6.1 70 7.7 9.9 78
KELLEY R.S. 8180 5.3 6.3 84 7.1 8.7 82
LILY LAKE 9156 4.4 5.3 83 7.1 8.2 87
MONTE CRISTO 8960 7.9 10.3 77 8.6 12.2 70
SALT RIVER SUMMIT 7760 5.0 5.0 100 6.9 7.8 88
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Basin Index (%) 83 79
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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.
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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.