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 26 , 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 * 30.5 25.1 122
BLACK BEAR 8170 35.8 30.6 117 48.6 45.4 107
BLIND BULL SUM 8650 36.5 16.5 221 26.2 23.8 110
COTTONWOOD CREEK 7670 13.7 .7 1957* 39.4 30.8 128
EAST RIM DIVIDE 7930 .0 .0 * 17.9 14.6 123
GRAND TARGHEE 9260 45.9 41.2 111 45.0 38.0 118
GRANITE CREEK 6770 2.4 .0 * 27.6 23.5 117
GRASSY LAKE 7265 16.2 11.2 145 46.4 42.8 108
GROS VENTRE SUMMIT 8750 3.4 1.6 212 17.2 16.5 104
GUNSIGHT PASS 9820 14.0 6.5 215 22.9 18.2 126
LEWIS LAKE DIVIDE 7850 23.7 17.6 135 47.0 41.8 112
PHILLIPS BENCH 8200 23.0 14.4 160 39.7 33.5 119
SALT RIVER SUMMIT 7760 .0 .0 * 22.2 20.4 109
SNAKE RIVER STATION 6920 .0 .0 * 30.4 27.1 112
SPRING CREEK DIVIDE 9000 28.5 15.9 179 36.8 28.7 128
THUMB DIVIDE 7980 .1 .0 * 23.7 23.3 102
TOGWOTEE PASS 9580 27.6 22.2 124 37.6 30.4 124
TWO OCEAN PLATEAU 9240 37.8 27.6 137 39.9 33.6 119
WILLOW CREEK 8380 18.9 9.8 193 47.3 41.8 113
YOUNTS PEAK 8350 -M 9.1 * -M 20.2 *
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Basin Index (%) 152 116
MADISON-GALLATIN
BLACK BEAR 8170 35.8 30.6 117 48.6 45.4 107
CANYON 7870 .7 .0 * 20.4 20.4 100
MADISON PLATEAU 7750 14.1 11.4 124 30.9 32.3 96
WEST YELLOWSTONE 6700 .0 .0 * 19.6 18.0 109
WHISKEY CREEK 6800 3.8 1.9 200 26.1 25.0 104
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Basin Index (%) 124 103
YELLOWSTONE
BEARTOOTH LAKE 9360 30.3 20.1 151 34.9 24.7 141
BURNT MTN 5880 .1 .0 * 26.2 20.1 130
CANYON 7870 .7 .0 * 20.4 20.4 100
COLE CREEK 7850 22.9 13.1 175 22.4 20.4 110
EVENING STAR 9200 34.1 21.4 159 46.7 34.2 137
FISHER CREEK 9100 -M 30.7 * 47.2 39.2 120
NORTHEAST ENTRANCE 7350 .0 .0 * 19.6 16.1 122
PARKER PEAK 9400 29.0 18.1 160 35.6 23.1 154
SYLVAN LAKE 8420 12.4 12.1 102 35.4 28.4 125
THUMB DIVIDE 7980 .1 .0 * 23.7 23.3 102
TWO OCEAN PLATEAU 9240 37.8 27.6 137 39.9 33.6 119
WHITE MILL 8700 29.8 20.5 145 35.1 29.6 119
WOLVERINE 7650 -M .0 * 21.0 16.0 131
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Basin Index (%) 148 124
WIND RIVER
BURROUGHS CREEK 8750 -M 5.6 * -M 20.5 *
CASTLE CREEK 8400 .0 -M * 15.3 -M *
COLD SPRINGS 9630 .0 .0 * 15.8 14.9 106
DEER PARK 9700 -M 7.6 * 24.7 26.7 93
HOBBS PARK 10100 11.2 10.2 110 19.0 19.9 95
KIRWIN 9550 12.4 5.5 225 23.0 16.4 140
LITTLE WARM 9370 2.9 .1 2900* 20.3 17.9 113
OWL CREEK 8975 .2 .0 * 10.0 10.2 98
SOUTH PASS 9040 4.7 2.0 235 19.3 23.0 84
ST. LAWRENCE ALT 8620 .1 .0 * 12.8 13.9 92
TOGWOTEE PASS 9580 27.6 22.2 124 37.6 30.4 124
TOWNSEND CREEK 8700 .0 .0 * 14.6 17.7 82
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Basin Index (%) 148* 103
BIGHORN BASIN
BALD MTN. 9380 27.4 16.8 163 25.8 22.9 113
BEAR TRAP MEADOW 8200 .0 .0 * 14.8 13.4 110
BONE SPRINGS DIV 9350 19.3 12.2 158 22.5 21.7 104
GRAVE SPRINGS 8550 2.3 .0 * 16.1 15.7 103
KIRWIN 9550 12.4 5.5 225 23.0 16.4 140
MARQUETTE 8760 6.8 -M * 18.2 -M *
MIDDLE POWDER 7760 5.3 .5 1060* 18.3 16.9 108
OWL CREEK 8975 .2 .0 * 10.0 10.2 98
POWDER RIVER PASS 9480 8.1 1.4 579 20.7 18.1 114
SHELL CREEK 9580 18.9 13.2 143 21.8 19.3 113
TIMBER CREEK 7950 .2 .0 * 14.4 12.9 112
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Basin Index (%) 190* 112
SHOSHONE RIVER
BLACKWATER 9780 28.9 22.9 126 34.9 26.8 130
EVENING STAR 9200 34.1 21.4 159 46.7 34.2 137
MARQUETTE 8760 6.8 -M * 18.2 -M *
SYLVAN ROAD 7120 .0 .0 * 25.6 20.8 123
YOUNTS PEAK 8350 -M 9.1 * -M 20.2 *
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Basin Index (%) 142* 131
POWDER RIVER
BEAR TRAP MEADOW 8200 .0 .0 * 14.8 13.4 110
CLOUD PEAK RESERVOIR 9860 20.9 11.2 187 26.9 20.5 131
GRAVE SPRINGS 8550 2.3 .0 * 16.1 15.7 103
HANSEN SAWMILL 8360 .2 .0 * 17.2 13.6 126
MIDDLE POWDER 7760 5.3 .5 1060* 18.3 16.9 108
POWDER RIVER PASS 9480 8.1 1.4 579 20.7 18.1 114
SOLDIER PARK 8720 3.0 -M * 17.5 -M *
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Basin Index (%) 281* 116
TONGUE RIVER
BIG GOOSE 7990 6.5 .2 3250* 20.4 17.9 114
BONE SPRINGS DIV 9350 19.3 12.2 158 22.5 21.7 104
BURGESS JUNCTION 7880 10.1 3.8 266 21.3 17.6 121
DOME LAKE 8880 12.8 1.7 753 22.0 19.8 111
LITTLE GOOSE 8870 8.3 -M * 23.6 -M *
SUCKER CREEK 8880 11.9 4.8 248 25.7 21.0 122
TIE CREEK 6870 .2 .0 * 19.8 18.1 109
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Basin Index (%) 268 113
BELLE FOURCHE
COLE CANYON 5910 .0 .0 * 18.4 15.8 116
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Basin Index (%) * 116
CHEYENNE RIVER BASIN
BLIND PARK 6890 .1 .0 * 20.9 17.7 118
NORTH RAPID CREEK 6130 .0 .0 * 20.2 15.2 133
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Basin Index (%) * 125
UPPER N. PLATTE
ARAPAHO RIDGE 10960 27.3 12.9 212 35.3 28.9 122
BLACKHALL MTN 9820 32.2 -M * 44.6 -M *
COLUMBINE 9160 17.7 .0 * 42.4 31.0 137
DIVIDE PEAK 8880 .3 .6 50* 30.0 26.9 112
JOE WRIGHT 10120 30.3 17.9 169 43.0 33.5 128
LAPRELE CREEK 8375 .2 .0 * 17.7 17.4 102
MED BOW 10500 -M -M * 49.3 -M *
NORTH FRENCH CREEK 10130 35.8 25.5 140 44.2 34.4 128
NEVER SUMMER 10280 25.8 17.6 147 28.6 -M *
OLD BATTLE 10000 36.9 29.1 127 45.1 42.9 105
RAWAH 9020 .2 .0 * 25.8 19.2 134
SAGE CREEK BASIN 7850 .1 .0 * 14.8 17.7 84
SAND LAKE 10050 38.4 24.4 157 42.7 32.5 131
SOUTH BRUSH CREEK 8440 .1 .0 * 20.0 20.6 97
TOWER 10500 50.5 43.8 115 61.0 48.6 126
WEBBER SPRINGS 9250 14.5 5.2 279 37.4 32.5 115
WILLOW CREEK PASS 9540 9.5 4.9 194 21.1 17.9 118
ZIRKEL 9340 23.1 .8 2888* 49.0 33.7 145
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Basin Index (%) 170 121
SWEETWATER
DEER PARK 9700 -M 7.6 * 24.7 26.7 93
LARSEN CREEK 9000 .0 1.8 0 17.9 -M *
SOUTH PASS 9040 4.7 2.0 235 19.3 23.0 84
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Basin Index (%) 124 89
LOWER N. PLATTE
CASPER MTN. 7900 4.7 .7 671* 21.6 21.0 103
LAPRELE CREEK 8375 .2 .0 * 17.7 17.4 102
RENO HILL 8400 11.4 .0 * 28.7 22.0 130
WINDY PEAK 7900 .0 .0 * 17.7 15.5 114
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Basin Index (%) 2329* 113
LARAMIE RIVER
BROOKLYN LAKE 10240 24.2 11.0 220 38.2 27.8 137
CINNABAR PARK 9574 20.5 6.5 315 37.6 29.9 126
CROW CREEK 8330 .0 .0 * 18.7 15.8 118
DEADMAN HILL 10220 22.5 12.5 180 31.7 23.5 135
RAWAH 9020 .2 .0 * 25.8 19.2 134
ROACH 9700 14.3 6.5 220 32.8 25.2 130
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Basin Index (%) 224 131
S. PLATTE
BLACK MOUNTAIN 8920 .2 -M * 20.3 -M *
CROW CREEK 8330 .0 .0 * 18.7 15.8 118
DEADMAN HILL 10220 22.5 12.5 180 31.7 23.5 135
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Basin Index (%) 180* 128
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 * 20.4 18.9 108
DIVIDE PEAK 8880 .3 .6 50* 30.0 26.9 112
ELK RIVER 8700 .3 .0 * 28.3 25.0 113
LITTLE SNAKE RIVER 8915 -M 6.9 * -M 35.8 *
OLD BATTLE 10000 36.9 29.1 127 45.1 42.9 105
SAGE CREEK BASIN 7850 .1 .0 * 14.8 17.7 84
SANDSTONE RS 8150 -M .0 * 21.0 22.8 92
WHISKEY PARK 8950 24.3 14.5 168 47.1 34.3 137
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Basin Index (%) 140* 110
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.9 .0 * 17.1 17.4 98
BLIND BULL SUM 8650 36.5 16.5 221 26.2 23.8 110
EAST RIM DIVIDE 7930 .0 .0 * 17.9 14.6 123
ELKHART PARK G.S. 9400 9.0 2.7 333 20.4 17.3 118
GROS VENTRE SUMMIT 8750 3.4 1.6 212 17.2 16.5 104
GUNSIGHT PASS 9820 14.0 6.5 215 22.9 18.2 126
KENDALL R.S. 7740 .0 .0 * 25.3 17.2 147
LOOMIS PARK 8240 7.1 .0 * 27.7 21.0 132
NEW FORK LAKE 8340 -M .0 * 15.4 14.0 110
POCKET CREEK 9360 5.1 -M * 15.3 -M *
SNIDER BASIN 8060 .0 .0 * 23.0 17.2 134
SPRING CREEK DIVIDE 9000 28.5 15.9 179 36.8 28.7 128
TRIPLE PEAK 8500 15.7 2.5 628 41.4 30.9 134
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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 * 21.6 -M *
EF BLACKS FORK GS 9360 .0 -M * 15.6 -M *
HAMS FORK 7840 .0 .0 * 16.9 14.8 114
HEWINTA 9519 .0 .0 * 18.7 18.1 103
HICKERSON PARK 9145 .0 .0 * 12.7 14.0 91
HOLE-IN-ROCK 9150 .0 .0 * 13.9 13.6 102
INDIAN CREEK 9425 20.7 14.2 146 31.0 27.6 112
KELLEY R.S. 8180 .5 .0 * 23.7 22.3 106
SPIRIT LK 10235 .1 -M * 19.3 -M *
STEEL CREEK PARK 10200 15.1 11.7 129 21.4 21.5 100
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Basin Index (%) 140* 105
UPPER BEAR RIVER
BEAR RIVER RS 8777 .0 -M * 15.8 -M *
BUG LAKE 7950 2.4 .0 * 24.5 24.0 102
BURTS MILLER RANCH 8000 .0 -M * 8.9 -M *
CHALK CREEK #1 8993 6.7 10.3 65 27.8 31.5 88
HAYDEN FORK 9212 .0 .0 * 25.7 26.3 98
KELLEY R.S. 8180 .5 .0 * 23.7 22.3 106
LILY LAKE 9156 .0 .0 * 19.3 21.9 88
MONTE CRISTO 8960 9.5 8.7 109 30.7 32.2 95
SALT RIVER SUMMIT 7760 .0 .0 * 22.2 20.4 109
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Basin Index (%) 101* 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.