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 FRIDAY: MAY 23 , 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 2.0 .0 * 30.3 24.8 122
BLACK BEAR 8170 40.7 32.3 126 48.6 45.0 108
BLIND BULL SUM 8650 38.5 18.3 210 26.1 23.6 111
COTTONWOOD CREEK 7670 16.8 3.4 494 39.6 30.4 130
EAST RIM DIVIDE 7930 .0 .0 * 17.8 14.4 124
GRAND TARGHEE 9260 48.4 41.4 117 44.9 37.4 120
GRANITE CREEK 6770 6.0 .0 * 27.6 23.2 119
GRASSY LAKE 7265 21.7 14.3 152 46.5 42.3 110
GROS VENTRE SUMMIT 8750 6.3 3.5 180 16.8 16.4 102
GUNSIGHT PASS 9820 15.6 8.7 179 22.4 18.0 124
LEWIS LAKE DIVIDE 7850 29.1 20.2 144 46.8 41.4 113
PHILLIPS BENCH 8200 26.8 16.7 160 39.7 33.3 119
SALT RIVER SUMMIT 7760 .0 .0 * 22.2 20.2 110
SNAKE RIVER STATION 6920 .0 .0 * 30.3 26.8 113
SPRING CREEK DIVIDE 9000 30.8 18.3 168 36.6 28.4 129
THUMB DIVIDE 7980 4.8 .3 1600* 23.7 23.1 103
TOGWOTEE PASS 9580 29.5 22.7 130 37.6 30.1 125
TWO OCEAN PLATEAU 9240 39.4 27.9 141 39.9 33.3 120
WILLOW CREEK 8380 23.2 13.6 171 47.3 41.3 115
YOUNTS PEAK 8350 -M 10.7 * -M 19.9 *
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Basin Index (%) 157 116
MADISON-GALLATIN
BLACK BEAR 8170 40.7 32.3 126 48.6 45.0 108
CANYON 7870 4.4 .6 733* 20.3 20.2 100
MADISON PLATEAU 7750 17.8 12.9 138 30.8 32.0 96
WEST YELLOWSTONE 6700 .0 .0 * 19.6 17.8 110
WHISKEY CREEK 6800 7.7 3.7 208 26.0 24.6 106
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Basin Index (%) 143 104
YELLOWSTONE
BEARTOOTH LAKE 9360 31.4 20.8 151 34.9 24.4 143
BURNT MTN 5880 .0 .0 * 26.2 19.7 133
CANYON 7870 4.4 .6 733* 20.3 20.2 100
COLE CREEK 7850 25.1 14.7 171 22.6 19.9 114
EVENING STAR 9200 36.7 22.6 162 46.8 33.7 139
FISHER CREEK 9100 43.5 31.9 136 47.3 38.8 122
NORTHEAST ENTRANCE 7350 .0 .0 * 19.5 15.9 123
PARKER PEAK 9400 33.1 19.2 172 35.7 22.8 157
SYLVAN LAKE 8420 16.2 13.7 118 35.4 28.1 126
THUMB DIVIDE 7980 4.8 .3 1600* 23.7 23.1 103
TWO OCEAN PLATEAU 9240 39.4 27.9 141 39.9 33.3 120
WHITE MILL 8700 32.9 21.4 154 35.1 29.3 120
WOLVERINE 7650 .0 .0 * 21.2 15.8 134
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Basin Index (%) 155 126
WIND RIVER
BURROUGHS CREEK 8750 -M 7.4 * -M 20.2 *
CASTLE CREEK 8400 .0 -M * 15.0 -M *
COLD SPRINGS 9630 .0 .0 * 15.8 14.6 108
DEER PARK 9700 12.5 9.1 137 24.3 26.3 92
HOBBS PARK 10100 13.4 11.8 114 18.5 19.6 94
KIRWIN 9550 15.1 7.0 216 22.6 16.2 140
LITTLE WARM 9370 5.7 1.0 570* 20.2 17.7 114
OWL CREEK 8975 .0 .0 * 9.8 9.9 99
SOUTH PASS 9040 7.6 4.1 185 19.2 22.7 85
ST. LAWRENCE ALT 8620 .0 .0 * 12.8 13.7 93
TOGWOTEE PASS 9580 29.5 22.7 130 37.6 30.1 125
TOWNSEND CREEK 8700 .0 .0 * 14.9 17.4 86
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Basin Index (%) 150* 104
BIGHORN BASIN
BALD MTN. 9380 29.8 18.0 166 25.6 22.4 114
BEAR TRAP MEADOW 8200 .0 .0 * 14.5 12.9 112
BONE SPRINGS DIV 9350 22.4 13.4 167 22.5 21.3 106
GRAVE SPRINGS 8550 5.3 .3 1767* 15.8 15.2 104
KIRWIN 9550 15.1 7.0 216 22.6 16.2 140
MARQUETTE 8760 10.6 -M * 18.2 -M *
MIDDLE POWDER 7760 9.1 2.6 350 17.6 16.5 107
OWL CREEK 8975 .0 .0 * 9.8 9.9 99
POWDER RIVER PASS 9480 10.2 3.2 319 20.5 17.7 116
SHELL CREEK 9580 20.5 14.4 142 21.6 18.9 114
TIMBER CREEK 7950 .0 .0 * 14.2 12.5 114
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Basin Index (%) 191 113
SHOSHONE RIVER
BLACKWATER 9780 30.5 23.6 129 34.9 26.3 133
EVENING STAR 9200 36.7 22.6 162 46.8 33.7 139
MARQUETTE 8760 10.6 -M * 18.2 -M *
SYLVAN ROAD 7120 .0 .0 * 25.7 20.6 125
YOUNTS PEAK 8350 -M 10.7 * -M 19.9 *
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Basin Index (%) 145* 133
POWDER RIVER
BEAR TRAP MEADOW 8200 .0 .0 * 14.5 12.9 112
CLOUD PEAK RESERVOIR 9860 23.2 13.2 176 26.6 20.0 133
GRAVE SPRINGS 8550 5.3 .3 1767* 15.8 15.2 104
HANSEN SAWMILL 8360 .0 .0 * 17.1 13.3 129
MIDDLE POWDER 7760 9.1 2.6 350 17.6 16.5 107
POWDER RIVER PASS 9480 10.2 3.2 319 20.5 17.7 116
SOLDIER PARK 8720 5.6 -M * 17.3 -M *
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Basin Index (%) 248* 117
TONGUE RIVER
BIG GOOSE 7990 8.6 2.1 410 20.3 17.5 116
BONE SPRINGS DIV 9350 22.4 13.4 167 22.5 21.3 106
BURGESS JUNCTION 7880 12.7 6.2 205 21.2 17.3 123
DOME LAKE 8880 14.6 4.0 365 21.5 19.4 111
LITTLE GOOSE 8870 11.0 -M * 23.5 -M *
SUCKER CREEK 8880 14.2 7.0 203 25.6 20.6 124
TIE CREEK 6870 .0 .0 * 19.8 17.6 112
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Basin Index (%) 222 115
BELLE FOURCHE
COLE CANYON 5910 .0 .0 * 18.1 15.1 120
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Basin Index (%) * 120
CHEYENNE RIVER BASIN
BLIND PARK 6890 .0 .0 * 20.9 17.2 122
NORTH RAPID CREEK 6130 .0 .0 * 20.2 14.9 136
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Basin Index (%) * 128
UPPER N. PLATTE
ARAPAHO RIDGE 10960 28.4 15.5 183 34.5 28.7 120
BLACKHALL MTN 9820 35.2 -M * 43.9 -M *
COLUMBINE 9160 19.6 .1 19600* 41.7 30.8 135
DIVIDE PEAK 8880 3.7 3.0 123 29.7 26.7 111
JOE WRIGHT 10120 31.0 19.7 157 41.2 33.2 124
LAPRELE CREEK 8375 .2 .0 * 17.6 17.1 103
MED BOW 10500 -M -M * 48.5 -M *
NORTH FRENCH CREEK 10130 36.9 27.5 134 42.6 34.1 125
NEVER SUMMER 10280 25.8 18.8 137 27.1 -M *
OLD BATTLE 10000 37.4 31.3 119 43.7 42.4 103
RAWAH 9020 2.2 .1 2200* 23.1 19.1 121
SAGE CREEK BASIN 7850 .0 .0 * 14.6 17.5 83
SAND LAKE 10050 38.8 26.4 147 42.0 32.2 130
SOUTH BRUSH CREEK 8440 .0 .0 * 19.8 20.4 97
TOWER 10500 52.6 46.4 113 60.4 48.2 125
WEBBER SPRINGS 9250 16.0 8.8 182 35.8 32.3 111
WILLOW CREEK PASS 9540 10.7 7.5 143 19.3 17.6 110
ZIRKEL 9340 25.4 5.0 508 -M 33.5 *
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Basin Index (%) 156 116
SWEETWATER
DEER PARK 9700 12.5 9.1 137 24.3 26.3 92
LARSEN CREEK 9000 .0 2.7 0 17.9 -M *
SOUTH PASS 9040 7.6 4.1 185 19.2 22.7 85
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Basin Index (%) 126 89
LOWER N. PLATTE
CASPER MTN. 7900 8.5 2.2 386 21.2 20.6 103
LAPRELE CREEK 8375 .2 .0 * 17.6 17.1 103
RENO HILL 8400 14.7 .8 1838* 28.5 21.6 132
WINDY PEAK 7900 .2 .0 * 17.1 15.1 113
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Basin Index (%) 787* 113
LARAMIE RIVER
BROOKLYN LAKE 10240 25.9 13.8 188 38.0 27.5 138
CINNABAR PARK 9574 21.1 9.5 222 36.7 29.8 123
CROW CREEK 8330 .2 .0 * 17.7 15.5 114
DEADMAN HILL 10220 24.3 14.6 166 30.5 23.3 131
RAWAH 9020 2.2 .1 2200* 23.1 19.1 121
ROACH 9700 15.3 9.2 166 30.9 24.9 124
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Basin Index (%) 189 126
S. PLATTE
BLACK MOUNTAIN 8920 .3 -M * 19.5 -M *
CROW CREEK 8330 .2 .0 * 17.7 15.5 114
DEADMAN HILL 10220 24.3 14.6 166 30.5 23.3 131
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Basin Index (%) 168* 124
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 * 20.1 18.7 107
DIVIDE PEAK 8880 3.7 3.0 123 29.7 26.7 111
ELK RIVER 8700 .9 .0 * 26.9 24.8 108
LITTLE SNAKE RIVER 8915 -M 9.9 * -M 35.4 *
OLD BATTLE 10000 37.4 31.3 119 43.7 42.4 103
SAGE CREEK BASIN 7850 .0 .0 * 14.6 17.5 83
SANDSTONE RS 8150 .0 .0 * 21.0 22.7 93
WHISKEY PARK 8950 29.0 18.8 154 46.3 34.0 136
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Basin Index (%) 134* 108
UPPER GREEN RIVER
BIG SANDY OPENING 9080 6.6 .4 1650* 17.3 17.1 101
BLIND BULL SUM 8650 38.5 18.3 210 26.1 23.6 111
EAST RIM DIVIDE 7930 .0 .0 * 17.8 14.4 124
ELKHART PARK G.S. 9400 11.4 4.2 271 20.4 17.1 119
GROS VENTRE SUMMIT 8750 6.3 3.5 180 16.8 16.4 102
GUNSIGHT PASS 9820 15.6 8.7 179 22.4 18.0 124
KENDALL R.S. 7740 2.8 .0 * 25.0 17.0 147
LOOMIS PARK 8240 9.5 .5 1900* 27.7 20.8 133
NEW FORK LAKE 8340 .0 .0 * 15.3 13.8 111
POCKET CREEK 9360 7.0 -M * 15.3 -M *
SNIDER BASIN 8060 .0 .0 * 21.8 17.0 128
SPRING CREEK DIVIDE 9000 30.8 18.3 168 36.6 28.4 129
TRIPLE PEAK 8500 18.6 5.5 338 41.4 30.6 135
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Basin Index (%) 236* 123
LOWER GREEN RIVER
BLACKS FORK JCT 8870 .0 -M * 16.7 -M *
BUCK PASTURE 9700 .0 -M * 21.2 -M *
EF BLACKS FORK GS 9360 -M -M * 14.1 -M *
HAMS FORK 7840 .0 .0 * 16.9 14.7 115
HEWINTA 9519 .0 .0 * 18.3 17.9 102
HICKERSON PARK 9145 .0 .0 * 12.1 13.7 88
HOLE-IN-ROCK 9150 .0 .0 * 13.3 13.3 100
INDIAN CREEK 9425 23.0 16.3 141 30.7 27.3 112
KELLEY R.S. 8180 3.6 .7 514* 23.7 22.1 107
SPIRIT LK 10235 .2 -M * 18.8 -M *
STEEL CREEK PARK 10200 16.4 13.3 123 21.0 21.3 99
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Basin Index (%) 142* 104
UPPER BEAR RIVER
BEAR RIVER RS 8777 .0 -M * 15.3 -M *
BUG LAKE 7950 6.4 1.2 533* 24.4 23.8 103
BURTS MILLER RANCH 8000 .1 -M * 8.7 -M *
CHALK CREEK #1 8993 9.3 12.8 73 27.5 31.1 88
HAYDEN FORK 9212 .0 .0 * 25.1 26.1 96
KELLEY R.S. 8180 3.6 .7 514* 23.7 22.1 107
LILY LAKE 9156 .0 .0 * 18.6 21.6 86
MONTE CRISTO 8960 12.8 11.9 108 30.0 32.0 94
SALT RIVER SUMMIT 7760 .0 .0 * 22.2 20.2 110
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Basin Index (%) 121* 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.