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 MONDAY: MARCH 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 19.5 13.6 143 20.4 17.4 117
BLACK BEAR 8170 31.2 29.9 104 29.4 31.3 94
BLIND BULL SUM 8650 31.1 18.2 171 20.4 16.1 127
COTTONWOOD CREEK 7670 26.6 17.2 155 28.5 19.8 144
EAST RIM DIVIDE 7930 15.2 8.3 183 13.5 9.6 141
GRAND TARGHEE 9260 40.6 30.5 133 30.2 25.0 121
GRANITE CREEK 6770 20.2 13.9 145 20.0 16.6 120
GRASSY LAKE 7265 31.6 26.4 120 31.4 29.8 105
GROS VENTRE SUMMIT 8750 13.5 10.0 135 12.9 10.2 126
GUNSIGHT PASS 9820 17.3 10.7 162 16.2 11.0 147
LEWIS LAKE DIVIDE 7850 29.7 25.3 117 30.3 29.2 104
PHILLIPS BENCH 8200 28.9 19.9 145 27.3 23.0 119
SALT RIVER SUMMIT 7760 16.3 10.7 152 17.1 13.6 126
SNAKE RIVER STATION 6920 17.9 14.4 124 20.5 18.8 109
SPRING CREEK DIVIDE 9000 31.2 18.8 166 28.3 19.4 146
THUMB DIVIDE 7980 13.5 12.4 109 12.7 14.8 86
TOGWOTEE PASS 9580 27.3 18.1 151 24.6 19.6 126
TWO OCEAN PLATEAU 9240 32.1 21.7 148 20.5 21.9 94
WILLOW CREEK 8380 33.3 22.6 147 31.3 27.1 115
YOUNTS PEAK 8350 -M 11.7 * -M 12.8 *
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Basin Index (%) 139 116
MADISON-GALLATIN
BLACK BEAR 8170 31.2 29.9 104 29.4 31.3 94
CANYON 7870 11.7 10.7 109 13.4 13.2 102
MADISON PLATEAU 7750 17.8 18.0 99 18.0 21.5 84
WEST YELLOWSTONE 6700 10.7 9.1 118 11.8 11.8 100
WHISKEY CREEK 6800 13.2 12.1 109 15.3 16.5 93
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Basin Index (%) 106 93
YELLOWSTONE
BEARTOOTH LAKE 9360 24.5 17.1 143 22.8 15.9 143
BURNT MTN 5880 8.2 4.1 200 14.8 9.6 154
CANYON 7870 11.7 10.7 109 13.4 13.2 102
COLE CREEK 7850 15.2 10.2 149 11.2 9.2 122
EVENING STAR 9200 32.1 19.4 165 31.5 22.3 141
FISHER CREEK 9100 34.5 26.0 133 30.1 25.8 117
NORTHEAST ENTRANCE 7350 12.6 8.3 152 12.5 10.0 125
PARKER PEAK 9400 24.8 16.2 153 20.8 14.2 146
SYLVAN LAKE 8420 19.3 16.0 121 21.9 18.1 121
THUMB DIVIDE 7980 13.5 12.4 109 12.7 14.8 86
TWO OCEAN PLATEAU 9240 32.1 21.7 148 20.5 21.9 94
WHITE MILL 8700 26.7 18.5 144 22.9 19.2 119
WOLVERINE 7650 15.4 8.6 179 14.1 10.1 140
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Basin Index (%) 143 122
WIND RIVER
BURROUGHS CREEK 8750 -M 10.8 * -M 12.9 *
CASTLE CREEK 8400 10.0 -M * 11.6 -M *
COLD SPRINGS 9630 9.7 5.6 173 11.9 7.6 157
DEER PARK 9700 11.6 10.9 106 15.6 15.4 101
HOBBS PARK 10100 12.0 9.9 121 10.8 9.6 112
KIRWIN 9550 16.1 7.1 227 13.2 8.8 150
LITTLE WARM 9370 12.8 8.1 158 14.9 9.9 151
OWL CREEK 8975 6.1 4.0 152 6.1 4.4 139
SOUTH PASS 9040 13.8 11.6 119 12.8 13.6 94
ST. LAWRENCE ALT 8620 4.0 5.3 75 7.1 6.6 108
TOGWOTEE PASS 9580 27.3 18.1 151 24.6 19.6 126
TOWNSEND CREEK 8700 5.8 6.7 87 6.6 8.7 76
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Basin Index (%) 137 119
BIGHORN BASIN
BALD MTN. 9380 20.0 15.0 133 15.3 13.3 115
BEAR TRAP MEADOW 8200 8.4 4.5 187 8.5 6.2 137
BONE SPRINGS DIV 9350 17.2 12.3 140 13.4 11.9 113
GRAVE SPRINGS 8550 9.2 7.0 131 9.5 8.0 119
KIRWIN 9550 16.1 7.1 227 13.2 8.8 150
MARQUETTE 8760 9.3 -M * 9.9 -M *
MIDDLE POWDER 7760 12.5 8.2 152 10.4 8.8 118
OWL CREEK 8975 6.1 4.0 152 6.1 4.4 139
POWDER RIVER PASS 9480 12.8 8.0 160 13.5 9.7 139
SHELL CREEK 9580 15.7 11.8 133 13.4 10.7 125
TIMBER CREEK 7950 5.3 3.9 136 6.9 5.3 130
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Basin Index (%) 151 127
SHOSHONE RIVER
BLACKWATER 9780 26.7 17.5 153 23.6 16.2 146
EVENING STAR 9200 32.1 19.4 165 31.5 22.3 141
MARQUETTE 8760 9.3 -M * 9.9 -M *
SYLVAN ROAD 7120 13.5 9.6 141 17.7 14.0 126
YOUNTS PEAK 8350 -M 11.7 * -M 12.8 *
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Basin Index (%) 155 139
POWDER RIVER
BEAR TRAP MEADOW 8200 8.4 4.5 187 8.5 6.2 137
CLOUD PEAK RESERVOIR 9860 15.7 10.5 150 13.8 9.7 142
GRAVE SPRINGS 8550 9.2 7.0 131 9.5 8.0 119
HANSEN SAWMILL 8360 7.6 4.7 162 9.7 6.2 156
MIDDLE POWDER 7760 12.5 8.2 152 10.4 8.8 118
POWDER RIVER PASS 9480 12.8 8.0 160 13.5 9.7 139
SOLDIER PARK 8720 9.5 -M * 8.9 -M *
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Basin Index (%) 154 135
TONGUE RIVER
BIG GOOSE 7990 8.4 6.3 133 10.5 8.0 131
BONE SPRINGS DIV 9350 17.2 12.3 140 13.4 11.9 113
BURGESS JUNCTION 7880 11.2 8.4 133 12.3 9.1 135
DOME LAKE 8880 11.2 8.8 127 10.4 10.0 104
LITTLE GOOSE 8870 9.6 -M * 12.2 -M *
SUCKER CREEK 8880 13.2 9.1 145 14.7 10.7 137
TIE CREEK 6870 6.5 4.4 148 11.4 8.6 133
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Basin Index (%) 137 125
BELLE FOURCHE
COLE CANYON 5910 5.4 4.9 110 12.2 7.2 169
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Basin Index (%) 110 169
CHEYENNE RIVER BASIN
BLIND PARK 6890 8.3 6.4 130 15.1 9.5 159
NORTH RAPID CREEK 6130 8.0 6.0 133 13.7 7.7 178
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Basin Index (%) 131 167
UPPER N. PLATTE
ARAPAHO RIDGE 10960 22.8 16.9 135 22.2 17.9 124
BLACKHALL MTN 9820 30.9 -M * 27.2 -M *
COLUMBINE 9160 29.9 20.1 149 -M 20.6 *
DIVIDE PEAK 8880 15.3 16.1 95 18.8 16.9 111
JOE WRIGHT 10120 16.9 16.9 100 26.7 20.1 133
LAPRELE CREEK 8375 6.8 7.8 87 8.3 9.4 88
MED BOW 10500 14.2 -M * 28.3 -M *
NORTH FRENCH CREEK 10130 -M 21.2 * -M 21.2 *
NEVER SUMMER 10280 20.6 16.3 126 16.0 -M *
OLD BATTLE 10000 27.8 24.2 115 31.2 28.1 111
RAWAH 9020 11.3 8.8 128 14.0 11.0 127
SAGE CREEK BASIN 7850 9.6 10.7 90 10.6 11.8 90
SAND LAKE 10050 26.3 21.3 123 25.5 19.1 134
SOUTH BRUSH CREEK 8440 9.7 10.4 93 11.9 11.8 101
TOWER 10500 44.5 36.7 121 -M 32.3 *
WEBBER SPRINGS 9250 21.8 18.9 115 23.9 21.3 112
WILLOW CREEK PASS 9540 11.7 9.7 121 12.3 10.4 118
ZIRKEL 9340 36.7 23.3 158 27.3 23.6 116
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Basin Index (%) 121 116
SWEETWATER
DEER PARK 9700 11.6 10.9 106 15.6 15.4 101
LARSEN CREEK 9000 12.0 9.7 124 13.8 -M *
SOUTH PASS 9040 13.8 11.6 119 12.8 13.6 94
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Basin Index (%) 116 98
LOWER N. PLATTE
CASPER MTN. 7900 -M 10.4 * -M 11.2 *
LAPRELE CREEK 8375 6.8 7.8 87 8.3 9.4 88
RENO HILL 8400 12.9 10.3 125 15.3 11.2 137
WINDY PEAK 7900 6.6 5.8 114 9.2 7.8 118
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Basin Index (%) 110 115
LARAMIE RIVER
BROOKLYN LAKE 10240 26.0 15.3 170 24.9 16.2 154
CINNABAR PARK 9574 19.8 17.3 114 20.4 19.8 103
CROW CREEK 8330 6.3 6.8 93 9.6 7.9 122
DEADMAN HILL 10220 20.4 12.5 163 19.3 12.9 150
RAWAH 9020 11.3 8.8 128 14.0 11.0 127
ROACH 9700 -M 12.6 * -M 14.8 *
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Basin Index (%) 138 130
S. PLATTE
BLACK MOUNTAIN 8920 9.8 -M * 11.2 -M *
CROW CREEK 8330 6.3 6.8 93 9.6 7.9 122
DEADMAN HILL 10220 20.4 12.5 163 19.3 12.9 150
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Basin Index (%) 138 139
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.8 9.9 99 14.6 12.2 120
DIVIDE PEAK 8880 15.3 16.1 95 18.8 16.9 111
ELK RIVER 8700 18.7 15.8 118 19.2 16.1 119
LITTLE SNAKE RIVER 8915 26.0 19.8 131 30.0 25.2 119
OLD BATTLE 10000 27.8 24.2 115 31.2 28.1 111
SAGE CREEK BASIN 7850 9.6 10.7 90 10.6 11.8 90
SANDSTONE RS 8150 10.4 10.7 97 15.2 15.2 100
WHISKEY PARK 8950 33.8 21.8 155 31.1 22.6 138
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Basin Index (%) 117 115
UPPER GREEN RIVER
BIG SANDY OPENING 9080 14.1 10.2 138 13.2 10.6 125
BLIND BULL SUM 8650 31.1 18.2 171 20.4 16.1 127
EAST RIM DIVIDE 7930 15.2 8.3 183 13.5 9.6 141
ELKHART PARK G.S. 9400 15.6 9.5 164 14.8 10.6 140
GROS VENTRE SUMMIT 8750 13.5 10.0 135 12.9 10.2 126
GUNSIGHT PASS 9820 17.3 10.7 162 16.2 11.0 147
KENDALL R.S. 7740 19.8 9.9 200 17.3 11.8 147
LOOMIS PARK 8240 21.2 11.9 178 21.4 14.2 151
NEW FORK LAKE 8340 14.5 8.3 175 12.2 8.8 139
POCKET CREEK 9360 11.6 -M * 11.6 -M *
SNIDER BASIN 8060 18.1 9.9 183 17.7 11.7 151
SPRING CREEK DIVIDE 9000 31.2 18.8 166 28.3 19.4 146
TRIPLE PEAK 8500 30.5 17.1 178 31.8 20.5 155
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Basin Index (%) 170 142
LOWER GREEN RIVER
BLACKS FORK JCT 8870 6.9 -M * 10.9 -M *
BUCK PASTURE 9700 11.6 -M * 13.2 -M *
EF BLACKS FORK GS 9360 8.0 -M * 9.6 -M *
HAMS FORK 7840 14.2 9.4 151 12.4 9.2 135
HEWINTA 9519 8.6 8.0 108 11.4 11.0 104
HICKERSON PARK 9145 6.1 6.0 102 7.6 7.6 100
HOLE-IN-ROCK 9150 5.6 5.7 98 7.4 7.2 103
INDIAN CREEK 9425 28.1 19.1 147 22.5 18.0 125
KELLEY R.S. 8180 17.0 12.2 139 18.6 14.7 127
SPIRIT LK 10235 7.4 -M * 10.7 -M *
STEEL CREEK PARK 10200 15.1 11.7 129 13.1 12.6 104
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Basin Index (%) 131 116
UPPER BEAR RIVER
BEAR RIVER RS 8777 8.0 -M * 10.1 -M *
BUG LAKE 7950 19.5 15.0 130 17.0 15.6 109
BURTS MILLER RANCH 8000 5.8 -M * 5.8 -M *
CHALK CREEK #1 8993 18.6 18.6 100 18.8 19.8 95
HAYDEN FORK 9212 13.0 12.3 106 16.9 16.6 102
KELLEY R.S. 8180 17.0 12.2 139 18.6 14.7 127
LILY LAKE 9156 11.4 10.5 109 12.6 13.4 94
MONTE CRISTO 8960 22.6 21.5 105 20.8 20.8 100
SALT RIVER SUMMIT 7760 16.3 10.7 152 17.1 13.6 126
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Basin Index (%) 117 106
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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.