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 TUESDAY: APRIL 8 , 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 25.2 15.2 166 26.3 20.7 127
BLACK BEAR 8170 43.0 37.1 116 40.3 37.9 106
BLIND BULL SUM 8650 36.9 23.3 158 23.5 19.3 122
COTTONWOOD CREEK 7670 31.5 20.9 151 34.9 24.4 143
EAST RIM DIVIDE 7930 17.7 10.2 174 15.7 11.7 134
GRAND TARGHEE 9260 51.2 38.7 132 -M 30.7 *
GRANITE CREEK 6770 24.3 14.3 170 24.3 19.5 125
GRASSY LAKE 7265 42.5 31.4 135 39.7 35.6 112
GROS VENTRE SUMMIT 8750 14.5 12.9 112 14.9 12.8 116
GUNSIGHT PASS 9820 20.7 13.9 149 19.1 13.8 138
LEWIS LAKE DIVIDE 7850 40.8 30.0 136 -M 35.1 *
PHILLIPS BENCH 8200 35.7 25.5 140 34.7 27.9 124
SALT RIVER SUMMIT 7760 18.8 12.7 148 19.5 16.5 118
SNAKE RIVER STATION 6920 -M 14.8 * -M 22.2 *
SPRING CREEK DIVIDE 9000 36.3 22.5 161 32.8 23.6 139
THUMB DIVIDE 7980 21.4 14.7 146 18.9 18.4 103
TOGWOTEE PASS 9580 32.9 22.2 148 33.1 24.1 137
TWO OCEAN PLATEAU 9240 40.6 26.2 155 -M 26.9 *
WILLOW CREEK 8380 42.1 28.4 148 42.0 33.3 126
YOUNTS PEAK 8350 -M 14.4 * -M 15.6 *
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Basin Index (%) 144 124
MADISON-GALLATIN
BLACK BEAR 8170 43.0 37.1 116 40.3 37.9 106
CANYON 7870 15.6 12.4 126 17.0 16.1 106
MADISON PLATEAU 7750 25.7 21.6 119 25.3 26.1 97
WEST YELLOWSTONE 6700 14.2 9.3 153 16.3 14.1 116
WHISKEY CREEK 6800 17.8 14.8 120 21.1 20.0 106
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Basin Index (%) 122 105
YELLOWSTONE
BEARTOOTH LAKE 9360 31.9 21.4 149 29.3 19.5 150
BURNT MTN 5880 11.5 4.3 267 19.7 12.9 153
CANYON 7870 15.6 12.4 126 17.0 16.1 106
COLE CREEK 7850 22.9 14.8 155 16.3 12.9 126
EVENING STAR 9200 39.6 23.8 166 40.7 27.1 150
FISHER CREEK 9100 44.3 31.3 142 37.4 31.3 119
NORTHEAST ENTRANCE 7350 15.8 8.9 178 16.0 12.1 132
PARKER PEAK 9400 32.5 19.6 166 28.8 17.5 165
SYLVAN LAKE 8420 25.6 19.4 132 29.0 22.0 132
THUMB DIVIDE 7980 21.4 14.7 146 18.9 18.4 103
TWO OCEAN PLATEAU 9240 40.6 26.2 155 -M 26.9 *
WHITE MILL 8700 34.2 22.3 153 29.3 23.4 125
WOLVERINE 7650 15.5 9.6 161 17.1 12.1 141
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Basin Index (%) 154 133
WIND RIVER
BURROUGHS CREEK 8750 -M 13.0 * -M 15.7 *
CASTLE CREEK 8400 10.5 -M * 12.6 -M *
COLD SPRINGS 9630 9.7 6.6 147 13.6 9.9 137
DEER PARK 9700 17.7 15.8 112 19.7 19.9 99
HOBBS PARK 10100 16.2 14.2 114 14.4 13.5 107
KIRWIN 9550 19.3 9.6 201 17.9 11.5 156
LITTLE WARM 9370 15.0 10.3 146 17.4 12.8 136
OWL CREEK 8975 8.3 5.8 143 8.3 6.0 138
SOUTH PASS 9040 16.8 15.3 110 15.4 17.3 89
ST. LAWRENCE ALT 8620 5.3 6.9 77 9.3 9.0 103
TOGWOTEE PASS 9580 32.9 22.2 148 33.1 24.1 137
TOWNSEND CREEK 8700 8.4 9.7 87 9.8 12.0 82
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Basin Index (%) 129 117
BIGHORN BASIN
BALD MTN. 9380 26.3 19.2 137 20.6 16.8 123
BEAR TRAP MEADOW 8200 11.5 4.9 235 11.5 8.6 134
BONE SPRINGS DIV 9350 22.2 16.9 131 17.5 15.5 113
GRAVE SPRINGS 8550 13.6 9.5 143 13.3 10.7 124
KIRWIN 9550 19.3 9.6 201 17.9 11.5 156
MARQUETTE 8760 15.5 -M * 13.7 -M *
MIDDLE POWDER 7760 18.3 12.1 151 14.6 11.7 125
OWL CREEK 8975 8.3 5.8 143 8.3 6.0 138
POWDER RIVER PASS 9480 15.8 10.2 155 17.1 12.6 136
SHELL CREEK 9580 20.0 15.2 132 17.2 13.7 126
TIMBER CREEK 7950 6.9 5.0 138 9.0 7.3 123
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Basin Index (%) 150 128
SHOSHONE RIVER
BLACKWATER 9780 32.9 22.7 145 29.6 20.3 146
EVENING STAR 9200 39.6 23.8 166 40.7 27.1 150
MARQUETTE 8760 15.5 -M * 13.7 -M *
SYLVAN ROAD 7120 16.6 10.7 155 21.9 16.5 133
YOUNTS PEAK 8350 -M 14.4 * -M 15.6 *
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Basin Index (%) 156 144
POWDER RIVER
BEAR TRAP MEADOW 8200 11.5 4.9 235 11.5 8.6 134
CLOUD PEAK RESERVOIR 9860 21.3 14.9 143 18.9 13.4 141
GRAVE SPRINGS 8550 13.6 9.5 143 13.3 10.7 124
HANSEN SAWMILL 8360 10.8 6.1 177 12.6 8.6 147
MIDDLE POWDER 7760 18.3 12.1 151 14.6 11.7 125
POWDER RIVER PASS 9480 15.8 10.2 155 17.1 12.6 136
SOLDIER PARK 8720 13.8 -M * 12.1 -M *
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Basin Index (%) 158 134
TONGUE RIVER
BIG GOOSE 7990 13.1 9.7 135 15.2 11.5 132
BONE SPRINGS DIV 9350 22.2 16.9 131 17.5 15.5 113
BURGESS JUNCTION 7880 16.2 12.0 135 16.6 12.3 135
DOME LAKE 8880 16.6 11.8 141 15.3 13.6 112
LITTLE GOOSE 8870 14.9 -M * 17.5 -M *
SUCKER CREEK 8880 18.7 12.3 152 20.0 14.4 139
TIE CREEK 6870 9.9 5.6 177 15.5 11.7 132
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Basin Index (%) 142 127
BELLE FOURCHE
COLE CANYON 5910 7.4 4.9 151 14.5 9.6 151
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Basin Index (%) 151 151
CHEYENNE RIVER BASIN
BLIND PARK 6890 9.6 6.9 139 16.9 11.9 142
NORTH RAPID CREEK 6130 9.5 6.4 148 15.3 10.0 153
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Basin Index (%) 144 147
UPPER N. PLATTE
ARAPAHO RIDGE 10960 28.5 21.0 136 27.8 22.6 123
BLACKHALL MTN 9820 39.5 -M * -M -M *
COLUMBINE 9160 37.5 23.4 160 -M 25.5 *
DIVIDE PEAK 8880 21.8 20.0 109 24.1 21.4 113
JOE WRIGHT 10120 24.4 21.4 114 32.6 25.8 126
LAPRELE CREEK 8375 10.6 9.4 113 11.8 12.5 94
MED BOW 10500 6.5 -M * 35.6 -M *
NORTH FRENCH CREEK 10130 38.7 29.7 130 32.3 26.7 121
NEVER SUMMER 10280 25.7 20.4 126 19.6 -M *
OLD BATTLE 10000 35.5 31.5 113 36.3 34.9 104
RAWAH 9020 14.9 10.6 141 17.9 14.4 124
SAGE CREEK BASIN 7850 14.1 11.6 122 13.5 14.6 92
SAND LAKE 10050 35.8 29.1 123 32.7 24.8 132
SOUTH BRUSH CREEK 8440 14.1 11.8 119 16.0 15.2 105
TOWER 10500 53.2 46.0 116 -M 39.8 *
WEBBER SPRINGS 9250 27.9 23.1 121 29.8 26.7 112
WILLOW CREEK PASS 9540 15.2 12.2 125 15.2 13.4 113
ZIRKEL 9340 42.9 26.2 164 -M 28.5 *
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Basin Index (%) 127 115
SWEETWATER
DEER PARK 9700 17.7 15.8 112 19.7 19.9 99
LARSEN CREEK 9000 14.2 11.5 123 16.1 -M *
SOUTH PASS 9040 16.8 15.3 110 15.4 17.3 89
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Basin Index (%) 114 94
LOWER N. PLATTE
CASPER MTN. 7900 19.4 14.4 135 16.5 15.1 109
LAPRELE CREEK 8375 10.6 9.4 113 11.8 12.5 94
RENO HILL 8400 19.8 14.0 141 21.2 15.6 136
WINDY PEAK 7900 9.7 7.7 126 12.3 10.6 116
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Basin Index (%) 131 115
LARAMIE RIVER
BROOKLYN LAKE 10240 32.8 22.0 149 30.7 21.1 145
CINNABAR PARK 9574 25.5 21.3 120 30.6 24.1 127
CROW CREEK 8330 7.1 6.9 103 11.7 10.9 107
DEADMAN HILL 10220 26.1 16.2 161 23.7 17.3 137
RAWAH 9020 14.9 10.6 141 17.9 14.4 124
ROACH 9700 22.5 16.6 136 24.9 19.1 130
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Basin Index (%) 138 130
S. PLATTE
BLACK MOUNTAIN 8920 13.2 -M * -M -M *
CROW CREEK 8330 7.1 6.9 103 11.7 10.9 107
DEADMAN HILL 10220 26.1 16.2 161 23.7 17.3 137
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Basin Index (%) 144 126
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 12.6 9.3 135 18.6 15.0 124
DIVIDE PEAK 8880 21.8 20.0 109 24.1 21.4 113
ELK RIVER 8700 23.5 19.1 123 23.4 20.0 117
LITTLE SNAKE RIVER 8915 34.0 25.5 133 36.2 29.9 121
OLD BATTLE 10000 35.5 31.5 113 36.3 34.9 104
SAGE CREEK BASIN 7850 14.1 11.6 122 13.5 14.6 92
SANDSTONE RS 8150 13.9 12.8 109 19.1 18.3 104
WHISKEY PARK 8950 43.5 27.5 158 41.2 27.9 148
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Basin Index (%) 126 117
UPPER GREEN RIVER
BIG SANDY OPENING 9080 16.3 12.7 128 15.1 13.2 114
BLIND BULL SUM 8650 36.9 23.3 158 23.5 19.3 122
EAST RIM DIVIDE 7930 17.7 10.2 174 15.7 11.7 134
ELKHART PARK G.S. 9400 17.9 12.3 146 16.8 13.2 127
GROS VENTRE SUMMIT 8750 14.5 12.9 112 14.9 12.8 116
GUNSIGHT PASS 9820 20.7 13.9 149 19.1 13.8 138
KENDALL R.S. 7740 22.7 11.4 199 23.1 14.1 164
LOOMIS PARK 8240 25.5 13.8 185 24.8 17.2 144
NEW FORK LAKE 8340 16.4 10.3 159 13.6 10.7 127
POCKET CREEK 9360 12.9 -M * 12.8 -M *
SNIDER BASIN 8060 20.4 12.3 166 19.6 14.1 139
SPRING CREEK DIVIDE 9000 36.3 22.5 161 32.8 23.6 139
TRIPLE PEAK 8500 34.7 21.8 159 37.5 25.1 149
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Basin Index (%) 158 136
LOWER GREEN RIVER
BLACKS FORK JCT 8870 9.4 -M * 13.8 -M *
BUCK PASTURE 9700 16.2 -M * 17.4 -M *
EF BLACKS FORK GS 9360 11.3 -M * 10.5 -M *
HAMS FORK 7840 17.4 10.5 166 13.9 11.3 123
HEWINTA 9519 13.5 10.9 124 14.7 14.0 105
HICKERSON PARK 9145 8.5 7.9 108 9.4 10.2 92
HOLE-IN-ROCK 9150 6.8 7.0 97 9.9 9.7 102
INDIAN CREEK 9425 33.7 24.7 136 27.1 22.4 121
KELLEY R.S. 8180 19.5 14.6 134 21.3 18.0 118
SPIRIT LK 10235 11.0 -M * 14.4 -M *
STEEL CREEK PARK 10200 19.5 15.8 123 17.0 16.5 103
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Basin Index (%) 130 111
UPPER BEAR RIVER
BEAR RIVER RS 8777 10.0 -M * 12.6 -M *
BUG LAKE 7950 24.3 18.5 131 21.2 19.3 110
BURTS MILLER RANCH 8000 6.6 -M * 7.1 -M *
CHALK CREEK #1 8993 23.5 24.4 96 23.1 25.1 92
HAYDEN FORK 9212 18.1 15.3 118 21.2 21.1 100
KELLEY R.S. 8180 19.5 14.6 134 21.3 18.0 118
LILY LAKE 9156 14.5 12.7 114 15.5 17.1 91
MONTE CRISTO 8960 29.0 27.8 104 26.2 25.8 102
SALT RIVER SUMMIT 7760 18.8 12.7 148 19.5 16.5 118
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Basin Index (%) 117 104
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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.