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 TUESDAY: MAY 27 , 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 .0 .0 * 30.4 25.2 121
BLACK BEAR 8170 34.3 29.9 115 48.6 45.6 107
BLIND BULL SUM 8650 35.3 15.8 223 26.2 23.9 110
COTTONWOOD CREEK 7670 12.1 .3 4033* 39.4 30.9 128
EAST RIM DIVIDE 7930 .0 .0 * 17.9 14.7 122
GRAND TARGHEE 9260 45.4 41.1 110 44.9 38.1 118
GRANITE CREEK 6770 .6 .0 * 27.9 23.6 118
GRASSY LAKE 7265 14.3 10.3 139 46.4 42.9 108
GROS VENTRE SUMMIT 8750 1.9 .9 211* 17.1 16.6 103
GUNSIGHT PASS 9820 13.0 5.8 224 22.9 18.2 126
LEWIS LAKE DIVIDE 7850 22.0 16.7 132 47.0 42.0 112
PHILLIPS BENCH 8200 21.6 13.6 159 39.8 33.6 118
SALT RIVER SUMMIT 7760 .0 .0 * 22.3 20.5 109
SNAKE RIVER STATION 6920 .0 .0 * 30.3 27.2 111
SPRING CREEK DIVIDE 9000 27.2 15.1 180 36.8 28.7 128
THUMB DIVIDE 7980 .1 .0 * 23.7 23.4 101
TOGWOTEE PASS 9580 27.0 21.7 124 37.6 30.5 123
TWO OCEAN PLATEAU 9240 36.6 27.4 134 39.9 33.8 118
WILLOW CREEK 8380 17.0 8.6 198 47.3 41.9 113
YOUNTS PEAK 8350 -M 8.3 * -M 20.3 *
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Basin Index (%) 149 115
MADISON-GALLATIN
BLACK BEAR 8170 34.3 29.9 115 48.6 45.6 107
CANYON 7870 .0 .0 * 20.4 20.5 100
MADISON PLATEAU 7750 12.7 10.7 119 30.9 32.4 95
WEST YELLOWSTONE 6700 .0 .0 * 19.6 18.0 109
WHISKEY CREEK 6800 2.3 1.1 209* 26.3 25.0 105
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Basin Index (%) 118* 103
YELLOWSTONE
BEARTOOTH LAKE 9360 29.6 19.8 149 34.9 24.8 141
BURNT MTN 5880 .0 .0 * 26.3 20.4 129
CANYON 7870 .0 .0 * 20.4 20.5 100
COLE CREEK 7850 21.7 12.5 174 22.6 20.6 110
EVENING STAR 9200 33.1 20.9 158 46.7 34.4 136
FISHER CREEK 9100 41.8 30.2 138 47.2 39.4 120
NORTHEAST ENTRANCE 7350 .0 .0 * 19.6 16.2 121
PARKER PEAK 9400 27.6 17.4 159 35.6 23.3 153
SYLVAN LAKE 8420 10.7 11.4 94 35.4 28.6 124
THUMB DIVIDE 7980 .1 .0 * 23.7 23.4 101
TWO OCEAN PLATEAU 9240 36.6 27.4 134 39.9 33.8 118
WHITE MILL 8700 28.6 20.0 143 35.1 29.8 118
WOLVERINE 7650 .0 .0 * 21.1 16.1 131
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Basin Index (%) 144 123
WIND RIVER
BURROUGHS CREEK 8750 -M 4.8 * -M 20.6 *
CASTLE CREEK 8400 .0 -M * 15.3 -M *
COLD SPRINGS 9630 .0 .0 * 16.4 15.0 109
DEER PARK 9700 8.2 7.0 117 24.7 26.8 92
HOBBS PARK 10100 10.0 9.6 104 19.0 20.0 95
KIRWIN 9550 10.6 5.0 212 22.9 16.5 139
LITTLE WARM 9370 1.3 .0 * 20.3 18.0 113
OWL CREEK 8975 .0 .0 * 10.1 10.3 98
SOUTH PASS 9040 2.9 1.5 193* 19.3 23.2 83
ST. LAWRENCE ALT 8620 .0 .0 * 12.8 14.1 91
TOGWOTEE PASS 9580 27.0 21.7 124 37.6 30.5 123
TOWNSEND CREEK 8700 .0 .0 * 14.9 17.8 84
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Basin Index (%) 134* 103
BIGHORN BASIN
BALD MTN. 9380 26.2 16.3 161 25.8 23.0 112
BEAR TRAP MEADOW 8200 .0 .0 * 15.2 13.5 113
BONE SPRINGS DIV 9350 18.1 11.8 153 22.6 21.8 104
GRAVE SPRINGS 8550 1.0 .0 * 16.3 15.9 103
KIRWIN 9550 10.6 5.0 212 22.9 16.5 139
MARQUETTE 8760 4.7 -M * 18.3 -M *
MIDDLE POWDER 7760 3.6 .0 * 18.9 17.0 111
OWL CREEK 8975 .0 .0 * 10.1 10.3 98
POWDER RIVER PASS 9480 7.0 .2 3500* 20.7 18.2 114
SHELL CREEK 9580 17.9 12.6 142 21.8 19.4 112
TIMBER CREEK 7950 .0 .0 * 14.4 13.0 111
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Basin Index (%) 184* 112
SHOSHONE RIVER
BLACKWATER 9780 27.6 22.7 122 35.0 26.9 130
EVENING STAR 9200 33.1 20.9 158 46.7 34.4 136
MARQUETTE 8760 4.7 -M * 18.3 -M *
SYLVAN ROAD 7120 .0 .0 * 25.6 20.9 122
YOUNTS PEAK 8350 -M 8.3 * -M 20.3 *
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Basin Index (%) 139* 131
POWDER RIVER
BEAR TRAP MEADOW 8200 .0 .0 * 15.2 13.5 113
CLOUD PEAK RESERVOIR 9860 19.5 10.3 189 26.9 20.7 130
GRAVE SPRINGS 8550 1.0 .0 * 16.3 15.9 103
HANSEN SAWMILL 8360 .0 .0 * 17.2 13.8 125
MIDDLE POWDER 7760 3.6 .0 * 18.9 17.0 111
POWDER RIVER PASS 9480 7.0 .2 3500* 20.7 18.2 114
SOLDIER PARK 8720 1.6 -M * 17.5 -M *
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Basin Index (%) 296* 116
TONGUE RIVER
BIG GOOSE 7990 5.5 .0 * 20.4 18.0 113
BONE SPRINGS DIV 9350 18.1 11.8 153 22.6 21.8 104
BURGESS JUNCTION 7880 8.9 3.0 297 21.5 17.7 121
DOME LAKE 8880 11.7 .8 1462* 22.2 19.9 112
LITTLE GOOSE 8870 7.5 -M * 23.6 -M *
SUCKER CREEK 8880 10.8 4.0 270 25.7 21.1 122
TIE CREEK 6870 .0 .0 * 19.8 18.3 108
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Basin Index (%) 281* 113
BELLE FOURCHE
COLE CANYON 5910 .0 .0 * 18.4 16.0 115
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Basin Index (%) * 115
CHEYENNE RIVER BASIN
BLIND PARK 6890 .0 .0 * 20.9 17.8 117
NORTH RAPID CREEK 6130 .0 .0 * 20.3 15.5 131
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Basin Index (%) * 124
UPPER N. PLATTE
ARAPAHO RIDGE 10960 26.5 12.0 221 35.3 29.0 122
BLACKHALL MTN 9820 30.5 -M * 44.6 -M *
COLUMBINE 9160 15.6 .0 * 42.5 31.1 137
DIVIDE PEAK 8880 .0 .1 0* 30.0 27.0 111
JOE WRIGHT 10120 29.8 17.1 174 43.0 33.7 128
LAPRELE CREEK 8375 .2 .0 * 17.9 17.6 102
MED BOW 10500 -M -M * 49.3 -M *
NORTH FRENCH CREEK 10130 34.7 24.7 140 44.2 34.6 128
NEVER SUMMER 10280 28.1 17.3 162 28.7 -M *
OLD BATTLE 10000 35.9 28.2 127 45.5 43.1 106
RAWAH 9020 .0 .0 * 25.9 19.3 134
SAGE CREEK BASIN 7850 .1 .0 * 14.8 17.7 84
SAND LAKE 10050 37.8 23.6 160 43.0 32.6 132
SOUTH BRUSH CREEK 8440 .0 .0 * 20.0 20.7 97
TOWER 10500 49.4 42.6 116 61.0 48.7 125
WEBBER SPRINGS 9250 -M 4.0 * -M 32.6 *
WILLOW CREEK PASS 9540 8.4 3.9 215 21.1 18.0 117
ZIRKEL 9340 21.5 .0 * 49.0 33.8 145
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Basin Index (%) 170* 121
SWEETWATER
DEER PARK 9700 8.2 7.0 117 24.7 26.8 92
LARSEN CREEK 9000 .0 1.5 0 17.9 -M *
SOUTH PASS 9040 2.9 1.5 193* 19.3 23.2 83
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Basin Index (%) 111 88
LOWER N. PLATTE
CASPER MTN. 7900 2.8 .3 933* 21.7 21.2 102
LAPRELE CREEK 8375 .2 .0 * 17.9 17.6 102
RENO HILL 8400 10.1 .0 * 28.8 22.2 130
WINDY PEAK 7900 .0 .0 * 17.7 15.6 113
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Basin Index (%) 4367* 112
LARAMIE RIVER
BROOKLYN LAKE 10240 23.0 10.0 230 38.6 27.9 138
CINNABAR PARK 9574 19.5 5.5 355 37.6 30.0 125
CROW CREEK 8330 .0 .0 * 18.7 15.8 118
DEADMAN HILL 10220 21.9 11.8 186 31.7 23.6 134
RAWAH 9020 .0 .0 * 25.9 19.3 134
ROACH 9700 13.4 5.6 239 32.8 25.3 130
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Basin Index (%) 236 131
S. PLATTE
BLACK MOUNTAIN 8920 .1 -M * 20.3 -M *
CROW CREEK 8330 .0 .0 * 18.7 15.8 118
DEADMAN HILL 10220 21.9 11.8 186 31.7 23.6 134
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Basin Index (%) 186* 128
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 * 20.4 19.0 107
DIVIDE PEAK 8880 .0 .1 0* 30.0 27.0 111
ELK RIVER 8700 .2 .0 * 28.2 25.1 112
LITTLE SNAKE RIVER 8915 -M 5.9 * -M 35.8 *
OLD BATTLE 10000 35.9 28.2 127 45.5 43.1 106
SAGE CREEK BASIN 7850 .1 .0 * 14.8 17.7 84
SANDSTONE RS 8150 -M .0 * 21.2 23.0 92
WHISKEY PARK 8950 22.2 13.0 171 47.1 34.4 137
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Basin Index (%) 141* 109
UPPER GREEN RIVER
BIG SANDY OPENING 9080 2.2 .0 * 17.3 17.5 99
BLIND BULL SUM 8650 35.3 15.8 223 26.2 23.9 110
EAST RIM DIVIDE 7930 .0 .0 * 17.9 14.7 122
ELKHART PARK G.S. 9400 7.6 2.1 362 20.5 17.4 118
GROS VENTRE SUMMIT 8750 1.9 .9 211* 17.1 16.6 103
GUNSIGHT PASS 9820 13.0 5.8 224 22.9 18.2 126
KENDALL R.S. 7740 .0 .0 * 25.3 17.3 146
LOOMIS PARK 8240 5.6 .0 * 27.8 21.1 132
NEW FORK LAKE 8340 -M .0 * 15.6 14.1 111
POCKET CREEK 9360 3.4 -M * 15.3 -M *
SNIDER BASIN 8060 .0 .0 * 23.0 17.2 134
SPRING CREEK DIVIDE 9000 27.2 15.1 180 36.8 28.7 128
TRIPLE PEAK 8500 14.1 1.7 829* 41.4 31.0 134
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Basin Index (%) 258* 123
LOWER GREEN RIVER
BLACKS FORK JCT 8870 .0 -M * 16.9 -M *
BUCK PASTURE 9700 .0 -M * 21.5 -M *
EF BLACKS FORK GS 9360 .0 -M * 16.1 -M *
HAMS FORK 7840 .0 .0 * 16.9 14.9 113
HEWINTA 9519 .0 .0 * 18.7 18.2 103
HICKERSON PARK 9145 .0 .0 * 12.7 14.1 90
HOLE-IN-ROCK 9150 .0 .0 * 13.9 13.6 102
INDIAN CREEK 9425 19.3 13.6 142 31.0 27.7 112
KELLEY R.S. 8180 .0 .0 * 23.7 22.4 106
SPIRIT LK 10235 .0 -M * 19.3 -M *
STEEL CREEK PARK 10200 13.8 11.2 123 21.4 21.6 99
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Basin Index (%) 133* 104
UPPER BEAR RIVER
BEAR RIVER RS 8777 .0 -M * 15.8 -M *
BUG LAKE 7950 .5 .0 * 24.5 24.1 102
BURTS MILLER RANCH 8000 .0 -M * 8.9 -M *
CHALK CREEK #1 8993 5.3 9.5 56 27.8 31.6 88
HAYDEN FORK 9212 .0 .0 * 25.7 26.4 97
KELLEY R.S. 8180 .0 .0 * 23.7 22.4 106
LILY LAKE 9156 .0 .0 * 19.3 22.0 88
MONTE CRISTO 8960 8.2 7.9 104 30.8 32.4 95
SALT RIVER SUMMIT 7760 .0 .0 * 22.3 20.5 109
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Basin Index (%) 80* 97
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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.