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: APRIL 2 , 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 24.8 14.9 166 25.8 20.3 127
BLACK BEAR 8170 41.8 36.6 114 39.3 36.8 107
BLIND BULL SUM 8650 36.5 22.6 162 23.3 18.9 123
COTTONWOOD CREEK 7670 31.3 21.3 147 34.2 23.8 144
EAST RIM DIVIDE 7930 17.8 10.0 178 15.6 11.4 137
GRAND TARGHEE 9260 50.1 36.9 136 -M 29.9 *
GRANITE CREEK 6770 24.3 14.8 164 23.9 19.2 124
GRASSY LAKE 7265 41.6 31.6 132 38.4 34.8 110
GROS VENTRE SUMMIT 8750 15.0 13.0 115 14.8 12.5 118
GUNSIGHT PASS 9820 20.4 13.4 152 18.9 13.3 142
LEWIS LAKE DIVIDE 7850 39.3 29.5 133 -M 34.3 *
PHILLIPS BENCH 8200 35.0 24.4 143 33.9 27.3 124
SALT RIVER SUMMIT 7760 18.5 12.9 143 19.2 16.1 119
SNAKE RIVER STATION 6920 -M 15.3 * -M 21.7 *
SPRING CREEK DIVIDE 9000 35.5 22.5 158 31.8 23.1 138
THUMB DIVIDE 7980 20.8 14.8 141 18.1 17.9 101
TOGWOTEE PASS 9580 32.2 21.7 148 32.5 23.4 139
TWO OCEAN PLATEAU 9240 40.1 25.6 157 -M 26.3 *
WILLOW CREEK 8380 40.9 28.0 146 40.8 32.4 126
YOUNTS PEAK 8350 -M 14.2 * -M 15.2 *
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Basin Index (%) 143 124
MADISON-GALLATIN
BLACK BEAR 8170 41.8 36.6 114 39.3 36.8 107
CANYON 7870 15.2 12.4 123 16.5 15.7 105
MADISON PLATEAU 7750 25.0 21.4 117 24.6 25.4 97
WEST YELLOWSTONE 6700 14.4 10.2 141 16.2 13.6 119
WHISKEY CREEK 6800 17.8 15.0 119 20.7 19.4 107
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Basin Index (%) 119 106
YELLOWSTONE
BEARTOOTH LAKE 9360 31.0 21.1 147 28.6 19.0 151
BURNT MTN 5880 11.5 4.4 261 19.3 12.3 157
CANYON 7870 15.2 12.4 123 16.5 15.7 105
COLE CREEK 7850 22.5 13.7 164 16.0 12.1 132
EVENING STAR 9200 38.4 23.9 161 39.3 26.3 149
FISHER CREEK 9100 43.0 30.4 141 36.8 30.5 121
NORTHEAST ENTRANCE 7350 15.5 9.5 163 15.5 11.8 131
PARKER PEAK 9400 31.1 18.9 165 27.9 17.0 164
SYLVAN LAKE 8420 24.7 19.2 129 28.0 21.5 130
THUMB DIVIDE 7980 20.8 14.8 141 18.1 17.9 101
TWO OCEAN PLATEAU 9240 40.1 25.6 157 -M 26.3 *
WHITE MILL 8700 33.3 21.7 153 28.6 22.8 125
WOLVERINE 7650 16.1 9.2 175 16.7 11.8 142
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Basin Index (%) 153 133
WIND RIVER
BURROUGHS CREEK 8750 -M 13.1 * -M 15.3 *
CASTLE CREEK 8400 10.5 -M * 12.4 -M *
COLD SPRINGS 9630 9.7 7.1 137 13.3 9.6 139
DEER PARK 9700 17.4 14.8 118 19.5 18.8 104
HOBBS PARK 10100 16.1 13.5 119 13.9 12.7 109
KIRWIN 9550 19.2 9.5 202 17.5 11.1 158
LITTLE WARM 9370 14.7 10.2 144 16.9 12.4 136
OWL CREEK 8975 8.1 5.6 145 7.9 5.7 139
SOUTH PASS 9040 16.7 14.9 112 15.5 16.7 93
ST. LAWRENCE ALT 8620 5.3 6.8 78 9.0 8.6 105
TOGWOTEE PASS 9580 32.2 21.7 148 32.5 23.4 139
TOWNSEND CREEK 8700 8.4 9.1 92 9.4 11.4 82
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Basin Index (%) 131 119
BIGHORN BASIN
BALD MTN. 9380 25.2 18.8 134 19.7 16.4 120
BEAR TRAP MEADOW 8200 11.3 5.1 222 11.3 8.2 138
BONE SPRINGS DIV 9350 21.5 16.1 134 17.2 14.9 115
GRAVE SPRINGS 8550 13.4 9.0 149 13.1 10.1 130
KIRWIN 9550 19.2 9.5 202 17.5 11.1 158
MARQUETTE 8760 15.0 -M * 13.1 -M *
MIDDLE POWDER 7760 18.1 11.5 157 14.3 11.2 128
OWL CREEK 8975 8.1 5.6 145 7.9 5.7 139
POWDER RIVER PASS 9480 15.7 10.0 157 16.8 12.0 140
SHELL CREEK 9580 19.4 14.7 132 16.7 13.2 127
TIMBER CREEK 7950 7.0 4.8 146 8.8 7.0 126
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Basin Index (%) 151 131
SHOSHONE RIVER
BLACKWATER 9780 32.0 22.2 144 28.7 19.8 145
EVENING STAR 9200 38.4 23.9 161 39.3 26.3 149
MARQUETTE 8760 15.0 -M * 13.1 -M *
SYLVAN ROAD 7120 16.3 11.1 147 21.3 16.2 131
YOUNTS PEAK 8350 -M 14.2 * -M 15.2 *
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Basin Index (%) 152 143
POWDER RIVER
BEAR TRAP MEADOW 8200 11.3 5.1 222 11.3 8.2 138
CLOUD PEAK RESERVOIR 9860 20.8 14.2 146 18.3 12.7 144
GRAVE SPRINGS 8550 13.4 9.0 149 13.1 10.1 130
HANSEN SAWMILL 8360 10.4 6.3 165 12.5 8.2 152
MIDDLE POWDER 7760 18.1 11.5 157 14.3 11.2 128
POWDER RIVER PASS 9480 15.7 10.0 157 16.8 12.0 140
SOLDIER PARK 8720 13.4 -M * 11.7 -M *
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Basin Index (%) 160 138
TONGUE RIVER
BIG GOOSE 7990 12.8 9.1 141 14.9 10.8 138
BONE SPRINGS DIV 9350 21.5 16.1 134 17.2 14.9 115
BURGESS JUNCTION 7880 15.7 11.4 138 16.1 11.8 136
DOME LAKE 8880 16.1 11.6 139 14.8 13.0 114
LITTLE GOOSE 8870 -M -M * -M -M *
SUCKER CREEK 8880 18.2 11.5 158 19.4 13.8 141
TIE CREEK 6870 9.6 5.5 175 15.0 11.0 136
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Basin Index (%) 144 129
BELLE FOURCHE
COLE CANYON 5910 7.9 5.8 136 14.1 8.9 158
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Basin Index (%) 136 158
CHEYENNE RIVER BASIN
BLIND PARK 6890 9.2 7.2 128 16.4 11.3 145
NORTH RAPID CREEK 6130 9.3 6.8 137 15.1 9.3 162
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Basin Index (%) 132 153
UPPER N. PLATTE
ARAPAHO RIDGE 10960 27.6 20.0 138 27.0 21.5 126
BLACKHALL MTN 9820 38.6 -M * 38.9 -M *
COLUMBINE 9160 36.7 23.0 160 37.8 24.6 154
DIVIDE PEAK 8880 21.1 19.6 108 23.4 20.7 113
JOE WRIGHT 10120 22.5 20.4 110 31.2 24.8 126
LAPRELE CREEK 8375 10.2 9.5 107 11.3 11.9 95
MED BOW 10500 28.5 -M * 35.6 -M *
NORTH FRENCH CREEK 10130 37.2 28.2 132 35.5 25.8 138
NEVER SUMMER 10280 24.7 19.8 125 20.2 -M *
OLD BATTLE 10000 34.6 30.0 115 36.2 33.9 107
RAWAH 9020 14.6 10.4 140 17.2 13.7 126
SAGE CREEK BASIN 7850 14.1 12.6 112 13.4 14.0 96
SAND LAKE 10050 35.0 27.8 126 32.2 23.8 135
SOUTH BRUSH CREEK 8440 13.0 12.2 107 15.2 14.7 103
TOWER 10500 52.7 44.4 119 53.0 38.3 138
WEBBER SPRINGS 9250 27.5 23.0 120 29.1 25.8 113
WILLOW CREEK PASS 9540 14.6 11.8 124 14.5 12.9 112
ZIRKEL 9340 42.5 26.4 161 43.9 27.5 160
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Basin Index (%) 126 126
SWEETWATER
DEER PARK 9700 17.4 14.8 118 19.5 18.8 104
LARSEN CREEK 9000 14.3 12.1 118 16.1 -M *
SOUTH PASS 9040 16.7 14.9 112 15.5 16.7 93
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Basin Index (%) 116 99
LOWER N. PLATTE
CASPER MTN. 7900 19.4 13.6 143 16.2 14.1 115
LAPRELE CREEK 8375 10.2 9.5 107 11.3 11.9 95
RENO HILL 8400 18.9 13.4 141 20.4 14.6 140
WINDY PEAK 7900 9.6 7.8 123 12.1 10.1 120
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Basin Index (%) 131 118
LARAMIE RIVER
BROOKLYN LAKE 10240 32.1 20.3 158 31.7 20.3 156
CINNABAR PARK 9574 25.1 20.2 124 30.0 23.2 129
CROW CREEK 8330 7.0 6.9 101 11.5 10.3 112
DEADMAN HILL 10220 24.9 15.7 159 23.3 16.5 141
RAWAH 9020 14.6 10.4 140 17.2 13.7 126
ROACH 9700 21.6 15.8 137 24.5 18.4 133
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Basin Index (%) 140 135
S. PLATTE
BLACK MOUNTAIN 8920 12.8 -M * -M -M *
CROW CREEK 8330 7.0 6.9 101 11.5 10.3 112
DEADMAN HILL 10220 24.9 15.7 159 23.3 16.5 141
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Basin Index (%) 141 130
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 12.2 10.5 116 18.0 14.6 123
DIVIDE PEAK 8880 21.1 19.6 108 23.4 20.7 113
ELK RIVER 8700 22.6 18.7 121 22.8 19.4 118
LITTLE SNAKE RIVER 8915 33.3 23.5 142 35.4 28.8 123
OLD BATTLE 10000 34.6 30.0 115 36.2 33.9 107
SAGE CREEK BASIN 7850 14.1 12.6 112 13.4 14.0 96
SANDSTONE RS 8150 13.4 13.0 103 18.5 17.8 104
WHISKEY PARK 8950 42.9 26.1 164 40.6 27.0 150
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Basin Index (%) 126 118
UPPER GREEN RIVER
BIG SANDY OPENING 9080 16.3 12.4 131 15.0 12.7 118
BLIND BULL SUM 8650 36.5 22.6 162 23.3 18.9 123
EAST RIM DIVIDE 7930 17.8 10.0 178 15.6 11.4 137
ELKHART PARK G.S. 9400 17.8 12.1 147 16.4 12.8 128
GROS VENTRE SUMMIT 8750 15.0 13.0 115 14.8 12.5 118
GUNSIGHT PASS 9820 20.4 13.4 152 18.9 13.3 142
KENDALL R.S. 7740 22.7 11.4 199 23.0 13.8 167
LOOMIS PARK 8240 25.3 14.2 178 24.6 16.8 146
NEW FORK LAKE 8340 16.3 10.4 157 13.6 10.4 131
POCKET CREEK 9360 13.0 -M * 12.7 -M *
SNIDER BASIN 8060 20.4 12.3 166 19.2 13.8 139
SPRING CREEK DIVIDE 9000 35.5 22.5 158 31.8 23.1 138
TRIPLE PEAK 8500 35.4 21.8 162 36.7 24.5 150
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Basin Index (%) 159 137
LOWER GREEN RIVER
BLACKS FORK JCT 8870 8.9 -M * 13.5 -M *
BUCK PASTURE 9700 15.5 -M * 16.9 -M *
EF BLACKS FORK GS 9360 10.8 -M * 10.2 -M *
HAMS FORK 7840 16.8 10.9 154 13.9 11.0 126
HEWINTA 9519 12.0 10.9 110 14.4 13.5 107
HICKERSON PARK 9145 7.3 7.6 96 8.8 9.8 90
HOLE-IN-ROCK 9150 6.7 6.9 97 9.1 9.2 99
INDIAN CREEK 9425 33.3 24.1 138 26.9 21.8 123
KELLEY R.S. 8180 19.3 15.0 129 21.2 17.5 121
SPIRIT LK 10235 10.0 -M * 13.4 -M *
STEEL CREEK PARK 10200 19.6 15.4 127 16.3 15.8 103
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Basin Index (%) 127 112
UPPER BEAR RIVER
BEAR RIVER RS 8777 10.3 -M * 12.4 -M *
BUG LAKE 7950 24.0 18.2 132 20.9 18.8 111
BURTS MILLER RANCH 8000 7.1 -M * 7.0 -M *
CHALK CREEK #1 8993 23.2 23.6 98 22.8 24.3 94
HAYDEN FORK 9212 17.8 15.2 117 20.9 20.3 103
KELLEY R.S. 8180 19.3 15.0 129 21.2 17.5 121
LILY LAKE 9156 14.1 12.2 116 15.2 16.5 92
MONTE CRISTO 8960 28.4 26.6 107 25.7 25.1 102
SALT RIVER SUMMIT 7760 18.5 12.9 143 19.2 16.1 119
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Basin Index (%) 117 105
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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.