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: MAY 19 , 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 6.4 .0 * 30.3 24.4 124
BLACK BEAR 8170 44.1 34.3 129 48.4 44.6 109
BLIND BULL SUM 8650 39.3 20.5 192 26.1 23.1 113
COTTONWOOD CREEK 7670 20.1 7.3 275 39.6 29.9 132
EAST RIM DIVIDE 7930 .0 1.0 0* 17.7 14.1 126
GRAND TARGHEE 9260 50.2 42.8 117 44.8 36.8 122
GRANITE CREEK 6770 10.1 .0 * 27.6 22.9 121
GRASSY LAKE 7265 27.6 18.5 149 46.5 41.8 111
GROS VENTRE SUMMIT 8750 10.2 6.3 162 16.8 16.0 105
GUNSIGHT PASS 9820 17.9 10.9 164 22.1 17.6 126
LEWIS LAKE DIVIDE 7850 36.2 23.1 157 46.9 40.9 115
PHILLIPS BENCH 8200 30.3 19.9 152 39.6 32.8 121
SALT RIVER SUMMIT 7760 3.0 .0 * 22.3 19.9 112
SNAKE RIVER STATION 6920 .0 .0 * 30.4 26.4 115
SPRING CREEK DIVIDE 9000 34.2 21.0 163 36.5 28.0 130
THUMB DIVIDE 7980 10.3 2.0 515 23.6 22.7 104
TOGWOTEE PASS 9580 31.7 23.2 137 37.5 29.6 127
TWO OCEAN PLATEAU 9240 40.6 28.5 142 39.9 32.7 122
WILLOW CREEK 8380 29.3 17.5 167 47.3 40.7 116
YOUNTS PEAK 8350 -M 12.1 * -M 19.4 *
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Basin Index (%) 160 118
MADISON-GALLATIN
BLACK BEAR 8170 44.1 34.3 129 48.4 44.6 109
CANYON 7870 8.3 2.8 296 20.3 19.8 103
MADISON PLATEAU 7750 21.6 14.8 146 30.8 31.5 98
WEST YELLOWSTONE 6700 .0 .0 * 19.6 17.5 112
WHISKEY CREEK 6800 11.2 6.3 178 26.1 24.2 108
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Basin Index (%) 146 106
YELLOWSTONE
BEARTOOTH LAKE 9360 32.8 21.9 150 34.8 24.1 144
BURNT MTN 5880 .0 .0 * 26.0 19.0 137
CANYON 7870 8.3 2.8 296 20.3 19.8 103
COLE CREEK 7850 25.9 16.5 157 22.7 19.4 117
EVENING STAR 9200 37.3 24.1 155 46.6 33.2 140
FISHER CREEK 9100 46.4 33.0 141 46.9 38.2 123
NORTHEAST ENTRANCE 7350 .0 .0 * 19.4 15.4 126
PARKER PEAK 9400 36.6 20.2 181 35.5 22.3 159
SYLVAN LAKE 8420 20.5 15.5 132 35.4 27.5 129
THUMB DIVIDE 7980 10.3 2.0 515 23.6 22.7 104
TWO OCEAN PLATEAU 9240 40.6 28.5 142 39.9 32.7 122
WHITE MILL 8700 35.3 22.8 155 35.0 28.8 122
WOLVERINE 7650 .9 .0 * 21.2 15.4 138
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Basin Index (%) 157 128
WIND RIVER
BURROUGHS CREEK 8750 -M 9.9 * -M 19.8 *
CASTLE CREEK 8400 .0 -M * 14.8 -M *
COLD SPRINGS 9630 .0 .0 * 15.7 14.3 110
DEER PARK 9700 15.3 11.1 138 24.2 25.9 93
HOBBS PARK 10100 15.0 13.6 110 18.4 19.2 96
KIRWIN 9550 17.6 8.8 200 22.1 15.8 140
LITTLE WARM 9370 8.6 3.4 253 20.2 17.3 117
OWL CREEK 8975 .0 .0 * 9.5 9.5 100
SOUTH PASS 9040 11.2 7.7 145 19.2 22.4 86
ST. LAWRENCE ALT 8620 .0 .0 * 12.7 13.4 95
TOGWOTEE PASS 9580 31.7 23.2 137 37.5 29.6 127
TOWNSEND CREEK 8700 .6 .0 * 14.6 17.0 86
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Basin Index (%) 147 105
BIGHORN BASIN
BALD MTN. 9380 31.4 19.6 160 25.4 22.0 115
BEAR TRAP MEADOW 8200 .0 .0 * 14.2 12.5 114
BONE SPRINGS DIV 9350 24.6 14.6 168 22.3 20.7 108
GRAVE SPRINGS 8550 8.4 3.5 240 15.5 14.9 104
KIRWIN 9550 17.6 8.8 200 22.1 15.8 140
MARQUETTE 8760 13.6 -M * 18.0 -M *
MIDDLE POWDER 7760 13.0 6.2 210 17.5 16.2 108
OWL CREEK 8975 .0 .0 * 9.5 9.5 100
POWDER RIVER PASS 9480 12.7 6.0 212 20.2 17.2 117
SHELL CREEK 9580 21.5 15.6 138 21.4 18.4 116
TIMBER CREEK 7950 .0 .0 * 13.5 12.1 112
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Basin Index (%) 174 114
SHOSHONE RIVER
BLACKWATER 9780 34.9 24.5 142 34.8 25.8 135
EVENING STAR 9200 37.3 24.1 155 46.6 33.2 140
MARQUETTE 8760 13.6 -M * 18.0 -M *
SYLVAN ROAD 7120 .0 .0 * 25.7 20.2 127
YOUNTS PEAK 8350 -M 12.1 * -M 19.4 *
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Basin Index (%) 149* 135
POWDER RIVER
BEAR TRAP MEADOW 8200 .0 .0 * 14.2 12.5 114
CLOUD PEAK RESERVOIR 9860 24.6 15.2 162 26.1 19.5 134
GRAVE SPRINGS 8550 8.4 3.5 240 15.5 14.9 104
HANSEN SAWMILL 8360 2.5 .0 * 16.2 12.8 127
MIDDLE POWDER 7760 13.0 6.2 210 17.5 16.2 108
POWDER RIVER PASS 9480 12.7 6.0 212 20.2 17.2 117
SOLDIER PARK 8720 8.1 -M * 16.5 -M *
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Basin Index (%) 198 118
TONGUE RIVER
BIG GOOSE 7990 10.9 5.7 191 20.1 17.1 118
BONE SPRINGS DIV 9350 24.6 14.6 168 22.3 20.7 108
BURGESS JUNCTION 7880 15.7 8.7 180 21.2 16.9 125
DOME LAKE 8880 16.4 7.0 234 21.0 19.0 111
LITTLE GOOSE 8870 13.6 -M * 23.2 -M *
SUCKER CREEK 8880 17.2 9.2 187 25.6 20.1 127
TIE CREEK 6870 2.1 .0 * 19.9 17.2 116
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Basin Index (%) 192 117
BELLE FOURCHE
COLE CANYON 5910 .0 .0 * 17.9 14.8 121
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Basin Index (%) * 121
CHEYENNE RIVER BASIN
BLIND PARK 6890 .0 .0 * 20.8 16.6 125
NORTH RAPID CREEK 6130 .0 .0 * 20.1 14.4 140
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Basin Index (%) * 132
UPPER N. PLATTE
ARAPAHO RIDGE 10960 30.9 19.0 163 34.6 28.4 122
BLACKHALL MTN 9820 38.5 -M * -M -M *
COLUMBINE 9160 22.6 4.0 565 -M 30.5 *
DIVIDE PEAK 8880 9.6 6.7 143 29.8 26.4 113
JOE WRIGHT 10120 32.8 21.6 152 41.2 32.7 126
LAPRELE CREEK 8375 .9 .0 * 17.0 16.8 101
MED BOW 10500 -M -M * 48.4 -M *
NORTH FRENCH CREEK 10130 39.5 30.2 131 42.3 33.6 126
NEVER SUMMER 10280 28.8 20.8 138 25.9 -M *
OLD BATTLE 10000 39.6 32.9 120 43.8 42.0 104
RAWAH 9020 6.1 .6 1017* 23.2 18.9 123
SAGE CREEK BASIN 7850 .0 .0 * 14.6 17.3 84
SAND LAKE 10050 40.1 28.3 142 41.9 31.8 132
SOUTH BRUSH CREEK 8440 .1 .4 25* 19.7 20.0 98
TOWER 10500 55.7 48.2 116 60.4 47.7 127
WEBBER SPRINGS 9250 19.4 13.0 149 35.9 32.0 112
WILLOW CREEK PASS 9540 14.4 9.8 147 19.3 17.3 112
ZIRKEL 9340 31.4 11.4 275 -M 33.3 *
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Basin Index (%) 151 116
SWEETWATER
DEER PARK 9700 15.3 11.1 138 24.2 25.9 93
LARSEN CREEK 9000 .0 3.9 0 17.9 -M *
SOUTH PASS 9040 11.2 7.7 145 19.2 22.4 86
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Basin Index (%) 117 90
LOWER N. PLATTE
CASPER MTN. 7900 13.3 5.4 246 21.1 20.3 104
LAPRELE CREEK 8375 .9 .0 * 17.0 16.8 101
RENO HILL 8400 18.1 4.6 393 28.2 21.3 132
WINDY PEAK 7900 .5 .0 * 16.8 14.7 114
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Basin Index (%) 328 114
LARAMIE RIVER
BROOKLYN LAKE 10240 29.6 17.2 172 38.0 27.1 140
CINNABAR PARK 9574 21.0 13.1 160 36.7 29.5 124
CROW CREEK 8330 .7 .0 * 17.7 15.1 117
DEADMAN HILL 10220 27.9 17.1 163 30.4 22.9 133
RAWAH 9020 6.1 .6 1017* 23.2 18.9 123
ROACH 9700 18.6 12.1 154 30.9 24.5 126
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Basin Index (%) 173 128
S. PLATTE
BLACK MOUNTAIN 8920 3.9 -M * 19.0 -M *
CROW CREEK 8330 .7 .0 * 17.7 15.1 117
DEADMAN HILL 10220 27.9 17.1 163 30.4 22.9 133
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Basin Index (%) 167* 127
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 * 20.2 18.6 109
DIVIDE PEAK 8880 9.6 6.7 143 29.8 26.4 113
ELK RIVER 8700 6.4 .0 * 27.0 24.5 110
LITTLE SNAKE RIVER 8915 -M 14.4 * -M 35.0 *
OLD BATTLE 10000 39.6 32.9 120 43.8 42.0 104
SAGE CREEK BASIN 7850 .0 .0 * 14.6 17.3 84
SANDSTONE RS 8150 -M .0 * 20.8 22.4 93
WHISKEY PARK 8950 29.3 22.6 130 45.8 33.8 136
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Basin Index (%) 136* 109
UPPER GREEN RIVER
BIG SANDY OPENING 9080 9.6 4.2 229 17.3 16.8 103
BLIND BULL SUM 8650 39.3 20.5 192 26.1 23.1 113
EAST RIM DIVIDE 7930 .0 1.0 0* 17.7 14.1 126
ELKHART PARK G.S. 9400 14.6 6.2 235 20.3 16.7 122
GROS VENTRE SUMMIT 8750 10.2 6.3 162 16.8 16.0 105
GUNSIGHT PASS 9820 17.9 10.9 164 22.1 17.6 126
KENDALL R.S. 7740 7.0 .0 * 24.9 16.7 149
LOOMIS PARK 8240 12.6 3.3 382 27.7 20.5 135
NEW FORK LAKE 8340 3.3 .0 * 15.0 13.5 111
POCKET CREEK 9360 10.0 -M * 15.3 -M *
SNIDER BASIN 8060 .0 .8 0* 21.7 16.8 129
SPRING CREEK DIVIDE 9000 34.2 21.0 163 36.5 28.0 130
TRIPLE PEAK 8500 23.1 9.5 243 41.4 30.1 138
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Basin Index (%) 205 125
LOWER GREEN RIVER
BLACKS FORK JCT 8870 .0 -M * 16.8 -M *
BUCK PASTURE 9700 4.3 -M * 21.3 -M *
EF BLACKS FORK GS 9360 .0 -M * 13.8 -M *
HAMS FORK 7840 .0 .0 * 16.8 14.3 117
HEWINTA 9519 .0 .0 * 18.4 17.7 104
HICKERSON PARK 9145 .0 .0 * 12.1 13.4 90
HOLE-IN-ROCK 9150 .0 .0 * 13.3 13.0 102
INDIAN CREEK 9425 26.8 19.3 139 30.7 27.0 114
KELLEY R.S. 8180 8.1 3.5 231 23.6 21.7 109
SPIRIT LK 10235 3.3 -M * 18.7 -M *
STEEL CREEK PARK 10200 19.3 15.2 127 21.1 21.0 100
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Basin Index (%) 143* 106
UPPER BEAR RIVER
BEAR RIVER RS 8777 .0 -M * 15.3 -M *
BUG LAKE 7950 10.6 6.1 174 24.4 23.4 104
BURTS MILLER RANCH 8000 .0 -M * 8.7 -M *
CHALK CREEK #1 8993 13.7 16.4 84 27.6 30.8 90
HAYDEN FORK 9212 .0 .0 * 25.2 25.7 98
KELLEY R.S. 8180 8.1 3.5 231 23.6 21.7 109
LILY LAKE 9156 1.0 .0 * 18.7 21.3 88
MONTE CRISTO 8960 16.3 15.8 103 30.0 31.5 95
SALT RIVER SUMMIT 7760 3.0 .0 * 22.3 19.9 112
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Basin Index (%) 126* 99
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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.