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 THURSDAY: MARCH 6 , 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 20.8 13.7 152 21.5 17.8 121
BLACK BEAR 8170 33.0 30.5 108 31.0 32.0 97
BLIND BULL SUM 8650 32.5 18.7 174 21.3 16.5 129
COTTONWOOD CREEK 7670 27.1 17.9 151 29.0 20.2 144
EAST RIM DIVIDE 7930 15.8 8.8 180 14.0 9.9 141
GRAND TARGHEE 9260 42.2 31.0 136 31.6 25.3 125
GRANITE CREEK 6770 -M 14.2 * -M 17.0 *
GRASSY LAKE 7265 33.0 26.9 123 32.5 30.4 107
GROS VENTRE SUMMIT 8750 13.8 10.4 133 13.4 10.5 128
GUNSIGHT PASS 9820 18.0 11.1 162 16.7 11.2 149
LEWIS LAKE DIVIDE 7850 31.6 25.7 123 30.6 29.9 102
PHILLIPS BENCH 8200 30.2 20.4 148 27.6 23.5 117
SALT RIVER SUMMIT 7760 16.6 10.9 152 17.4 13.9 125
SNAKE RIVER STATION 6920 18.6 14.7 127 21.1 19.2 110
SPRING CREEK DIVIDE 9000 31.8 19.3 165 28.4 19.8 143
THUMB DIVIDE 7980 14.1 12.6 112 13.2 15.3 86
TOGWOTEE PASS 9580 28.0 18.8 149 -M 20.0 *
TWO OCEAN PLATEAU 9240 33.5 22.1 152 -M 22.5 *
WILLOW CREEK 8380 34.1 23.4 146 -M 27.7 *
YOUNTS PEAK 8350 -M 12.0 * -M 13.0 *
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Basin Index (%) 141 118
MADISON-GALLATIN
BLACK BEAR 8170 33.0 30.5 108 31.0 32.0 97
CANYON 7870 11.8 11.1 106 13.8 13.5 102
MADISON PLATEAU 7750 18.8 18.4 102 18.9 22.1 86
WEST YELLOWSTONE 6700 11.1 9.2 121 12.2 12.0 102
WHISKEY CREEK 6800 13.8 12.5 110 16.0 16.9 95
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Basin Index (%) 108 95
YELLOWSTONE
BEARTOOTH LAKE 9360 25.9 17.7 146 23.9 16.3 147
BURNT MTN 5880 8.3 4.3 193 15.0 9.8 153
CANYON 7870 11.8 11.1 106 13.8 13.5 102
COLE CREEK 7850 15.2 10.7 142 11.2 9.4 119
EVENING STAR 9200 33.3 20.1 166 32.7 22.8 143
FISHER CREEK 9100 36.4 26.3 138 32.0 26.4 121
NORTHEAST ENTRANCE 7350 12.9 8.5 152 12.9 10.2 126
PARKER PEAK 9400 25.6 16.3 157 21.2 14.5 146
SYLVAN LAKE 8420 19.6 16.4 120 22.4 18.5 121
THUMB DIVIDE 7980 14.1 12.6 112 13.2 15.3 86
TWO OCEAN PLATEAU 9240 33.5 22.1 152 -M 22.5 *
WHITE MILL 8700 28.2 18.8 150 24.2 19.7 123
WOLVERINE 7650 15.4 8.8 175 14.4 10.2 141
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Basin Index (%) 145 127
WIND RIVER
BURROUGHS CREEK 8750 -M 11.0 * -M 13.1 *
CASTLE CREEK 8400 10.2 -M * 11.7 -M *
COLD SPRINGS 9630 9.8 5.7 172 12.0 7.8 154
DEER PARK 9700 13.8 11.2 123 15.8 15.6 101
HOBBS PARK 10100 12.1 10.4 116 10.6 10.0 106
KIRWIN 9550 16.6 7.4 224 15.2 9.1 167
LITTLE WARM 9370 13.2 8.3 159 15.3 10.2 150
OWL CREEK 8975 6.2 4.1 151 6.1 4.4 139
SOUTH PASS 9040 14.0 12.0 117 13.0 14.0 93
ST. LAWRENCE ALT 8620 4.3 5.6 77 7.5 6.8 110
TOGWOTEE PASS 9580 28.0 18.8 149 -M 20.0 *
TOWNSEND CREEK 8700 5.9 7.1 83 6.7 9.0 74
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Basin Index (%) 137 118
BIGHORN BASIN
BALD MTN. 9380 20.3 15.5 131 15.7 13.5 116
BEAR TRAP MEADOW 8200 8.5 4.6 185 8.7 6.4 136
BONE SPRINGS DIV 9350 17.5 12.9 136 13.7 12.2 112
GRAVE SPRINGS 8550 9.2 7.1 130 9.6 8.2 117
KIRWIN 9550 16.6 7.4 224 15.2 9.1 167
MARQUETTE 8760 10.0 -M * 10.4 -M *
MIDDLE POWDER 7760 12.4 8.4 148 10.4 9.0 116
OWL CREEK 8975 6.2 4.1 151 6.1 4.4 139
POWDER RIVER PASS 9480 12.9 8.2 157 13.7 9.9 138
SHELL CREEK 9580 15.9 12.0 132 13.6 10.9 125
TIMBER CREEK 7950 5.3 3.9 136 7.0 5.4 130
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Basin Index (%) 148 128
SHOSHONE RIVER
BLACKWATER 9780 27.5 18.1 152 24.4 16.6 147
EVENING STAR 9200 33.3 20.1 166 32.7 22.8 143
MARQUETTE 8760 10.0 -M * 10.4 -M *
SYLVAN ROAD 7120 13.8 9.8 141 18.0 14.3 126
YOUNTS PEAK 8350 -M 12.0 * -M 13.0 *
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Basin Index (%) 155 140
POWDER RIVER
BEAR TRAP MEADOW 8200 8.5 4.6 185 8.7 6.4 136
CLOUD PEAK RESERVOIR 9860 15.9 11.0 145 13.9 9.9 140
GRAVE SPRINGS 8550 9.2 7.1 130 9.6 8.2 117
HANSEN SAWMILL 8360 7.7 4.8 160 9.8 6.3 156
MIDDLE POWDER 7760 12.4 8.4 148 10.4 9.0 116
POWDER RIVER PASS 9480 12.9 8.2 157 13.7 9.9 138
SOLDIER PARK 8720 9.8 -M * 9.0 -M *
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Basin Index (%) 151 133
TONGUE RIVER
BIG GOOSE 7990 8.6 6.5 132 10.6 8.1 131
BONE SPRINGS DIV 9350 17.5 12.9 136 13.7 12.2 112
BURGESS JUNCTION 7880 11.4 8.8 130 12.5 9.4 133
DOME LAKE 8880 11.5 9.0 128 10.6 10.2 104
LITTLE GOOSE 8870 9.7 -M * 12.4 -M *
SUCKER CREEK 8880 13.3 9.5 140 14.8 10.9 136
TIE CREEK 6870 6.6 4.6 143 11.5 8.7 132
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Basin Index (%) 134 124
BELLE FOURCHE
COLE CANYON 5910 5.6 4.9 114 12.4 7.3 170
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Basin Index (%) 114 170
CHEYENNE RIVER BASIN
BLIND PARK 6890 8.4 6.5 129 15.0 9.7 155
NORTH RAPID CREEK 6130 8.2 6.1 134 13.9 7.8 178
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Basin Index (%) 132 165
UPPER N. PLATTE
ARAPAHO RIDGE 10960 23.3 17.2 135 23.0 18.2 126
BLACKHALL MTN 9820 31.8 -M * 27.2 -M *
COLUMBINE 9160 30.6 20.5 149 -M 20.9 *
DIVIDE PEAK 8880 15.9 16.5 96 19.2 17.4 110
JOE WRIGHT 10120 17.4 17.6 99 27.0 20.7 130
LAPRELE CREEK 8375 7.0 7.9 89 8.4 9.7 87
MED BOW 10500 14.1 -M * 28.3 -M *
NORTH FRENCH CREEK 10130 -M 21.6 * -M 21.6 *
NEVER SUMMER 10280 21.0 16.5 127 16.3 -M *
OLD BATTLE 10000 28.7 24.7 116 31.6 28.8 110
RAWAH 9020 11.8 9.0 131 14.4 11.2 129
SAGE CREEK BASIN 7850 9.8 10.9 90 10.8 12.1 89
SAND LAKE 10050 27.4 21.7 126 26.4 19.6 135
SOUTH BRUSH CREEK 8440 10.3 10.8 95 12.4 12.1 102
TOWER 10500 45.4 37.4 121 -M 32.9 *
WEBBER SPRINGS 9250 22.4 19.4 115 24.5 21.8 112
WILLOW CREEK PASS 9540 12.1 9.9 122 12.6 10.7 118
ZIRKEL 9340 37.7 24.2 156 27.6 23.8 116
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Basin Index (%) 121 115
SWEETWATER
DEER PARK 9700 13.8 11.2 123 15.8 15.6 101
LARSEN CREEK 9000 12.0 9.9 121 13.9 -M *
SOUTH PASS 9040 14.0 12.0 117 13.0 14.0 93
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Basin Index (%) 120 97
LOWER N. PLATTE
CASPER MTN. 7900 -M 10.9 * -M 11.5 *
LAPRELE CREEK 8375 7.0 7.9 89 8.4 9.7 87
RENO HILL 8400 13.0 10.8 120 15.4 11.6 133
WINDY PEAK 7900 6.7 6.1 110 9.2 8.1 114
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Basin Index (%) 108 112
LARAMIE RIVER
BROOKLYN LAKE 10240 26.9 15.9 169 26.0 16.7 156
CINNABAR PARK 9574 20.3 17.5 116 20.4 20.0 102
CROW CREEK 8330 6.5 6.9 94 10.0 8.2 122
DEADMAN HILL 10220 20.8 12.7 164 19.7 13.4 147
RAWAH 9020 11.8 9.0 131 14.4 11.2 129
ROACH 9700 -M 12.8 * -M 15.3 *
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Basin Index (%) 139 130
S. PLATTE
BLACK MOUNTAIN 8920 10.2 -M * 11.4 -M *
CROW CREEK 8330 6.5 6.9 94 10.0 8.2 122
DEADMAN HILL 10220 20.8 12.7 164 19.7 13.4 147
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Basin Index (%) 139 138
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 10.2 10.1 101 14.9 12.5 119
DIVIDE PEAK 8880 15.9 16.5 96 19.2 17.4 110
ELK RIVER 8700 19.2 16.3 118 19.6 16.5 119
LITTLE SNAKE RIVER 8915 26.5 20.0 132 30.5 25.4 120
OLD BATTLE 10000 28.7 24.7 116 31.6 28.8 110
SAGE CREEK BASIN 7850 9.8 10.9 90 10.8 12.1 89
SANDSTONE RS 8150 10.7 11.3 95 15.5 15.5 100
WHISKEY PARK 8950 34.4 22.4 154 -M 23.1 *
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Basin Index (%) 118 111
UPPER GREEN RIVER
BIG SANDY OPENING 9080 14.2 10.4 137 13.4 10.8 124
BLIND BULL SUM 8650 32.5 18.7 174 21.3 16.5 129
EAST RIM DIVIDE 7930 15.8 8.8 180 14.0 9.9 141
ELKHART PARK G.S. 9400 16.0 9.7 165 15.1 10.9 139
GROS VENTRE SUMMIT 8750 13.8 10.4 133 13.4 10.5 128
GUNSIGHT PASS 9820 18.0 11.1 162 16.7 11.2 149
KENDALL R.S. 7740 20.7 10.1 205 -M 12.1 *
LOOMIS PARK 8240 21.9 12.3 178 22.1 14.5 152
NEW FORK LAKE 8340 14.9 8.6 173 12.5 9.1 137
POCKET CREEK 9360 11.8 -M * 11.7 -M *
SNIDER BASIN 8060 18.3 10.3 178 18.0 11.9 151
SPRING CREEK DIVIDE 9000 31.8 19.3 165 28.4 19.8 143
TRIPLE PEAK 8500 31.6 17.8 178 32.9 20.9 157
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Basin Index (%) 169 142
LOWER GREEN RIVER
BLACKS FORK JCT 8870 7.2 -M * 11.1 -M *
BUCK PASTURE 9700 11.9 -M * 13.4 -M *
EF BLACKS FORK GS 9360 8.3 -M * 8.4 -M *
HAMS FORK 7840 14.4 9.6 150 12.6 9.4 134
HEWINTA 9519 8.9 8.3 107 11.6 11.2 104
HICKERSON PARK 9145 6.3 6.2 102 7.4 7.9 94
HOLE-IN-ROCK 9150 5.6 5.8 97 7.5 7.4 101
INDIAN CREEK 9425 28.8 19.5 148 24.1 18.4 131
KELLEY R.S. 8180 17.3 12.4 140 18.8 15.0 125
SPIRIT LK 10235 7.6 -M * 10.8 -M *
STEEL CREEK PARK 10200 15.4 12.1 127 13.3 12.9 103
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Basin Index (%) 131 116
UPPER BEAR RIVER
BEAR RIVER RS 8777 8.5 -M * 10.3 -M *
BUG LAKE 7950 20.0 15.4 130 17.5 16.0 109
BURTS MILLER RANCH 8000 6.4 -M * 6.0 -M *
CHALK CREEK #1 8993 19.1 19.0 101 19.2 20.3 95
HAYDEN FORK 9212 13.3 12.5 106 17.2 17.0 101
KELLEY R.S. 8180 17.3 12.4 140 18.8 15.0 125
LILY LAKE 9156 11.7 10.7 109 12.8 13.8 93
MONTE CRISTO 8960 23.5 22.1 106 21.6 21.2 102
SALT RIVER SUMMIT 7760 16.6 10.9 152 17.4 13.9 125
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Basin Index (%) 118 106
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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.