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: APRIL 13 , 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 22.7 14.0 162 26.8 21.2 126
BLACK BEAR 8170 42.0 36.6 115 40.7 38.7 105
BLIND BULL SUM 8650 36.7 23.7 155 23.5 19.7 119
COTTONWOOD CREEK 7670 30.8 20.3 152 34.9 25.0 140
EAST RIM DIVIDE 7930 15.8 10.1 156 15.5 11.9 130
GRAND TARGHEE 9260 51.0 40.4 126 -M 31.4 *
GRANITE CREEK 6770 23.1 13.0 178 24.3 19.8 123
GRASSY LAKE 7265 -M 31.4 * -M 36.4 *
GROS VENTRE SUMMIT 8750 -M 12.9 * -M 13.2 *
GUNSIGHT PASS 9820 21.2 13.6 156 19.1 14.1 135
LEWIS LAKE DIVIDE 7850 40.1 30.2 133 -M 35.8 *
PHILLIPS BENCH 8200 34.7 26.0 133 34.7 28.4 122
SALT RIVER SUMMIT 7760 -M 11.8 * -M 16.9 *
SNAKE RIVER STATION 6920 -M 13.6 * -M 22.7 *
SPRING CREEK DIVIDE 9000 36.3 23.0 158 33.2 24.1 138
THUMB DIVIDE 7980 20.0 14.6 137 19.3 18.9 102
TOGWOTEE PASS 9580 31.4 22.8 138 33.4 24.7 135
TWO OCEAN PLATEAU 9240 41.3 26.9 154 -M 27.6 *
WILLOW CREEK 8380 40.3 27.2 148 41.9 34.2 123
YOUNTS PEAK 8350 -M 14.6 * -M 16.0 *
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Basin Index (%) 142 124
MADISON-GALLATIN
BLACK BEAR 8170 42.0 36.6 115 40.7 38.7 105
CANYON 7870 15.4 12.3 125 17.0 16.5 103
MADISON PLATEAU 7750 25.2 22.3 113 25.3 26.6 95
WEST YELLOWSTONE 6700 11.9 8.5 140 16.2 14.3 113
WHISKEY CREEK 6800 17.3 14.6 118 21.1 20.5 103
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Basin Index (%) 119 103
YELLOWSTONE
BEARTOOTH LAKE 9360 32.2 22.0 146 30.4 20.1 151
BURNT MTN 5880 10.6 1.7 624 20.8 13.3 156
CANYON 7870 15.4 12.3 125 17.0 16.5 103
COLE CREEK 7850 24.7 15.4 160 17.9 13.7 131
EVENING STAR 9200 39.7 24.4 163 41.0 27.8 147
FISHER CREEK 9100 44.2 31.7 139 40.3 32.2 125
NORTHEAST ENTRANCE 7350 14.6 8.4 174 15.9 12.5 127
PARKER PEAK 9400 33.2 20.2 164 29.7 18.0 165
SYLVAN LAKE 8420 23.9 19.8 121 29.4 22.7 130
THUMB DIVIDE 7980 20.0 14.6 137 19.3 18.9 102
TWO OCEAN PLATEAU 9240 41.3 26.9 154 -M 27.6 *
WHITE MILL 8700 34.1 23.3 146 29.4 24.1 122
WOLVERINE 7650 -M 9.1 * 17.3 12.4 140
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Basin Index (%) 151 133
WIND RIVER
BURROUGHS CREEK 8750 -M 12.9 * -M 16.1 *
CASTLE CREEK 8400 9.2 -M * 12.4 -M *
COLD SPRINGS 9630 9.6 6.0 160 13.1 10.3 127
DEER PARK 9700 -M 16.2 * 19.8 20.5 97
HOBBS PARK 10100 15.6 14.9 105 14.2 14.1 101
KIRWIN 9550 19.7 9.9 199 18.4 11.9 155
LITTLE WARM 9370 14.4 10.3 140 17.4 13.2 132
OWL CREEK 8975 7.6 5.4 141 8.3 6.3 132
SOUTH PASS 9040 15.0 15.8 95 15.5 17.9 87
ST. LAWRENCE ALT 8620 3.8 6.7 57 8.8 9.3 95
TOGWOTEE PASS 9580 31.4 22.8 138 33.4 24.7 135
TOWNSEND CREEK 8700 7.8 10.0 78 10.0 12.7 79
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Basin Index (%) 123 113
BIGHORN BASIN
BALD MTN. 9380 27.1 19.3 140 21.1 17.5 121
BEAR TRAP MEADOW 8200 10.8 4.6 235 11.9 8.9 134
BONE SPRINGS DIV 9350 23.2 17.0 136 18.0 16.0 112
GRAVE SPRINGS 8550 12.8 9.6 133 13.3 11.0 121
KIRWIN 9550 19.7 9.9 199 18.4 11.9 155
MARQUETTE 8760 15.6 -M * 13.8 -M *
MIDDLE POWDER 7760 18.2 12.4 147 14.9 12.2 122
OWL CREEK 8975 7.6 5.4 141 8.3 6.3 132
POWDER RIVER PASS 9480 16.1 10.3 156 17.5 13.0 135
SHELL CREEK 9580 20.7 15.6 133 17.8 14.2 125
TIMBER CREEK 7950 7.0 5.2 135 10.0 7.7 130
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Basin Index (%) 149 127
SHOSHONE RIVER
BLACKWATER 9780 33.5 23.5 143 30.4 21.0 145
EVENING STAR 9200 39.7 24.4 163 41.0 27.8 147
MARQUETTE 8760 15.6 -M * 13.8 -M *
SYLVAN ROAD 7120 13.2 10.4 127 22.2 16.9 131
YOUNTS PEAK 8350 -M 14.6 * -M 16.0 *
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Basin Index (%) 148 142
POWDER RIVER
BEAR TRAP MEADOW 8200 10.8 4.6 235 11.9 8.9 134
CLOUD PEAK RESERVOIR 9860 22.0 15.3 144 19.5 14.0 139
GRAVE SPRINGS 8550 12.8 9.6 133 13.3 11.0 121
HANSEN SAWMILL 8360 10.5 6.1 172 13.2 9.0 147
MIDDLE POWDER 7760 18.2 12.4 147 14.9 12.2 122
POWDER RIVER PASS 9480 16.1 10.3 156 17.5 13.0 135
SOLDIER PARK 8720 13.9 -M * 12.9 -M *
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Basin Index (%) 155 133
TONGUE RIVER
BIG GOOSE 7990 13.1 9.9 132 15.9 12.0 132
BONE SPRINGS DIV 9350 23.2 17.0 136 18.0 16.0 112
BURGESS JUNCTION 7880 17.1 12.2 140 17.0 12.9 132
DOME LAKE 8880 17.2 12.0 143 16.2 14.2 114
LITTLE GOOSE 8870 -M -M * -M -M *
SUCKER CREEK 8880 19.1 12.6 152 20.6 15.0 137
TIE CREEK 6870 9.3 5.1 182 16.2 12.1 134
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Basin Index (%) 144 126
BELLE FOURCHE
COLE CANYON 5910 7.4 3.8 195 14.4 9.9 145
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Basin Index (%) 195 145
CHEYENNE RIVER BASIN
BLIND PARK 6890 8.0 5.8 138 17.0 12.4 137
NORTH RAPID CREEK 6130 7.6 5.9 129 15.5 10.3 150
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Basin Index (%) 133 143
UPPER N. PLATTE
ARAPAHO RIDGE 10960 29.4 21.5 137 28.3 23.6 120
BLACKHALL MTN 9820 39.3 -M * -M -M *
COLUMBINE 9160 36.3 22.6 161 -M 26.2 *
DIVIDE PEAK 8880 20.6 20.3 101 24.2 22.0 110
JOE WRIGHT 10120 24.7 22.0 112 32.7 26.7 122
LAPRELE CREEK 8375 9.0 9.3 97 11.9 13.0 92
MED BOW 10500 -M -M * 37.5 -M *
NORTH FRENCH CREEK 10130 38.6 31.2 124 36.4 27.5 132
NEVER SUMMER 10280 25.7 20.5 125 20.2 -M *
OLD BATTLE 10000 36.0 32.1 112 38.6 35.8 108
RAWAH 9020 12.7 10.0 127 18.2 15.0 121
SAGE CREEK BASIN 7850 11.3 9.9 114 13.5 15.0 90
SAND LAKE 10050 35.4 30.1 118 34.1 25.6 133
SOUTH BRUSH CREEK 8440 12.2 11.3 108 16.1 15.8 102
TOWER 10500 -M 47.2 * -M 40.8 *
WEBBER SPRINGS 9250 26.9 23.4 115 29.7 27.4 108
WILLOW CREEK PASS 9540 15.6 12.6 124 15.3 13.9 110
ZIRKEL 9340 41.7 24.7 169 -M 29.1 *
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Basin Index (%) 125 114
SWEETWATER
DEER PARK 9700 -M 16.2 * 19.8 20.5 97
LARSEN CREEK 9000 12.1 11.0 110 16.1 -M *
SOUTH PASS 9040 15.0 15.8 95 15.5 17.9 87
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Basin Index (%) 101 92
LOWER N. PLATTE
CASPER MTN. 7900 18.6 14.5 128 16.5 15.7 105
LAPRELE CREEK 8375 9.0 9.3 97 11.9 13.0 92
RENO HILL 8400 19.4 14.2 137 21.5 16.2 133
WINDY PEAK 7900 8.9 7.5 119 12.9 11.0 117
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Basin Index (%) 123 112
LARAMIE RIVER
BROOKLYN LAKE 10240 32.2 22.3 144 31.5 21.8 144
CINNABAR PARK 9574 25.3 21.3 119 30.5 24.8 123
CROW CREEK 8330 6.0 5.5 109 12.1 11.4 106
DEADMAN HILL 10220 25.3 16.6 152 24.6 18.0 137
RAWAH 9020 12.7 10.0 127 18.2 15.0 121
ROACH 9700 21.9 16.5 133 25.3 19.9 127
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Basin Index (%) 134 128
S. PLATTE
BLACK MOUNTAIN 8920 11.8 -M * -M -M *
CROW CREEK 8330 6.0 5.5 109 12.1 11.4 106
DEADMAN HILL 10220 25.3 16.6 152 24.6 18.0 137
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Basin Index (%) 142 125
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.1 7.7 118 18.6 15.4 121
DIVIDE PEAK 8880 20.6 20.3 101 24.2 22.0 110
ELK RIVER 8700 21.0 17.8 118 23.5 20.6 114
LITTLE SNAKE RIVER 8915 31.4 26.0 121 36.2 30.7 118
OLD BATTLE 10000 36.0 32.1 112 38.6 35.8 108
SAGE CREEK BASIN 7850 11.3 9.9 114 13.5 15.0 90
SANDSTONE RS 8150 11.4 12.4 92 19.2 18.8 102
WHISKEY PARK 8950 42.2 27.5 153 41.6 28.5 146
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Basin Index (%) 119 115
UPPER GREEN RIVER
BIG SANDY OPENING 9080 15.0 12.9 116 15.1 13.6 111
BLIND BULL SUM 8650 36.7 23.7 155 23.5 19.7 119
EAST RIM DIVIDE 7930 15.8 10.1 156 15.5 11.9 130
ELKHART PARK G.S. 9400 17.6 12.2 144 16.8 13.6 124
GROS VENTRE SUMMIT 8750 -M 12.9 * -M 13.2 *
GUNSIGHT PASS 9820 21.2 13.6 156 19.1 14.1 135
KENDALL R.S. 7740 21.2 10.4 204 23.0 14.3 161
LOOMIS PARK 8240 24.7 13.7 180 24.9 17.5 142
NEW FORK LAKE 8340 15.5 9.8 158 13.6 10.9 125
POCKET CREEK 9360 12.0 -M * 12.7 -M *
SNIDER BASIN 8060 -M 12.0 * -M 14.4 *
SPRING CREEK DIVIDE 9000 36.3 23.0 158 33.2 24.1 138
TRIPLE PEAK 8500 33.4 20.3 165 37.5 25.6 146
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Basin Index (%) 159 134
LOWER GREEN RIVER
BLACKS FORK JCT 8870 -M -M * -M -M *
BUCK PASTURE 9700 -M -M * -M -M *
EF BLACKS FORK GS 9360 -M -M * -M -M *
HAMS FORK 7840 14.0 9.2 152 13.9 11.6 120
HEWINTA 9519 10.5 10.3 102 14.8 14.5 102
HICKERSON PARK 9145 6.3 7.2 88 9.3 10.6 88
HOLE-IN-ROCK 9150 -M 7.1 * -M 10.1 *
INDIAN CREEK 9425 -M 24.3 * -M 22.9 *
KELLEY R.S. 8180 18.4 14.0 131 21.3 18.4 116
SPIRIT LK 10235 -M -M * -M -M *
STEEL CREEK PARK 10200 20.4 16.1 127 17.0 17.1 99
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Basin Index (%) 123* 106*
UPPER BEAR RIVER
BEAR RIVER RS 8777 -M -M * -M -M *
BUG LAKE 7950 -M 19.2 * -M 19.8 *
BURTS MILLER RANCH 8000 -M -M * -M -M *
CHALK CREEK #1 8993 -M 24.8 * -M 25.9 *
HAYDEN FORK 9212 -M 14.4 * -M 21.6 *
KELLEY R.S. 8180 18.4 14.0 131 21.3 18.4 116
LILY LAKE 9156 13.2 12.7 104 15.5 17.7 88
MONTE CRISTO 8960 27.0 27.8 97 26.3 26.5 99
SALT RIVER SUMMIT 7760 -M 11.8 * -M 16.9 *
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Basin Index (%) 108* 101*
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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.