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 30 , 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 * 30.0 25.5 118
BLACK BEAR 8170 30.1 26.9 112 48.6 46.1 105
BLIND BULL SUM 8650 30.3 13.2 230 26.1 24.2 108
COTTONWOOD CREEK 7670 7.2 .0 * 39.4 31.2 126
EAST RIM DIVIDE 7930 .0 .0 * 17.9 14.9 120
GRAND TARGHEE 9260 41.8 40.6 103 44.9 38.4 117
GRANITE CREEK 6770 .1 .0 * 29.0 23.9 121
GRASSY LAKE 7265 9.7 7.1 137 46.3 43.4 107
GROS VENTRE SUMMIT 8750 .0 .0 * 17.5 16.9 104
GUNSIGHT PASS 9820 9.8 4.0 245 23.0 18.5 124
LEWIS LAKE DIVIDE 7850 17.4 13.6 128 47.1 42.4 111
PHILLIPS BENCH 8200 17.6 11.3 156 39.7 34.0 117
SALT RIVER SUMMIT 7760 .0 .0 * 22.3 20.7 108
SNAKE RIVER STATION 6920 .0 .0 * 30.3 27.6 110
SPRING CREEK DIVIDE 9000 23.4 13.0 180 36.8 29.0 127
THUMB DIVIDE 7980 .1 .0 * 23.6 23.7 100
TOGWOTEE PASS 9580 24.4 20.0 122 37.5 30.8 122
TWO OCEAN PLATEAU 9240 33.0 26.0 127 39.9 34.2 117
WILLOW CREEK 8380 11.7 5.5 213 47.3 42.4 112
YOUNTS PEAK 8350 -M 5.2 * -M 20.5 *
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Basin Index (%) 142 114
MADISON-GALLATIN
BLACK BEAR 8170 30.1 26.9 112 48.6 46.1 105
CANYON 7870 .0 .0 * 20.9 20.8 100
MADISON PLATEAU 7750 8.3 8.1 102 30.9 32.9 94
WEST YELLOWSTONE 6700 .0 .0 * 19.7 18.4 107
WHISKEY CREEK 6800 .0 .0 * 26.6 25.4 105
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Basin Index (%) 110* 102
YELLOWSTONE
BEARTOOTH LAKE 9360 28.1 18.4 153 34.9 25.1 139
BURNT MTN 5880 .0 .0 * 26.3 20.6 128
CANYON 7870 .0 .0 * 20.9 20.8 100
COLE CREEK 7850 18.8 10.8 174 22.6 21.1 107
EVENING STAR 9200 30.3 19.1 159 46.8 34.7 135
FISHER CREEK 9100 38.8 28.9 134 47.3 39.8 119
NORTHEAST ENTRANCE 7350 .0 .0 * 19.6 16.5 119
PARKER PEAK 9400 23.6 15.1 156 35.7 23.6 151
SYLVAN LAKE 8420 7.9 8.6 92 35.4 29.1 122
THUMB DIVIDE 7980 .1 .0 * 23.6 23.7 100
TWO OCEAN PLATEAU 9240 33.0 26.0 127 39.9 34.2 117
WHITE MILL 8700 25.2 18.3 138 35.1 30.2 116
WOLVERINE 7650 .0 .0 * 21.1 16.4 129
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Basin Index (%) 142 122
WIND RIVER
BURROUGHS CREEK 8750 -M 2.6 * -M 20.9 *
CASTLE CREEK 8400 .0 -M * 15.4 -M *
COLD SPRINGS 9630 .0 .0 * 17.2 15.2 113
DEER PARK 9700 5.6 4.6 122 24.8 26.9 92
HOBBS PARK 10100 6.2 7.3 85 19.0 20.3 94
KIRWIN 9550 6.2 2.8 221 22.8 16.8 136
LITTLE WARM 9370 .0 .0 * 20.4 18.2 112
OWL CREEK 8975 .0 .0 * 10.2 10.5 97
SOUTH PASS 9040 .6 .5 120* 19.3 23.4 82
ST. LAWRENCE ALT 8620 .0 .0 * 12.8 14.3 90
TOGWOTEE PASS 9580 24.4 20.0 122 37.5 30.8 122
TOWNSEND CREEK 8700 .0 .0 * 15.0 18.0 83
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Basin Index (%) 122* 102
BIGHORN BASIN
BALD MTN. 9380 24.1 14.8 163 25.7 23.3 110
BEAR TRAP MEADOW 8200 .0 .0 * 15.3 13.7 112
BONE SPRINGS DIV 9350 14.4 10.1 143 22.8 22.0 104
GRAVE SPRINGS 8550 .0 .0 * 16.1 16.0 101
KIRWIN 9550 6.2 2.8 221 22.8 16.8 136
MARQUETTE 8760 .4 -M * 18.3 -M *
MIDDLE POWDER 7760 .0 .0 * 19.2 17.2 112
OWL CREEK 8975 .0 .0 * 10.2 10.5 97
POWDER RIVER PASS 9480 3.1 .0 * 20.8 18.5 112
SHELL CREEK 9580 14.0 10.4 135 22.0 19.7 112
TIMBER CREEK 7950 .0 .0 * 14.3 13.3 108
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Basin Index (%) 162* 111
SHOSHONE RIVER
BLACKWATER 9780 26.1 21.0 124 35.0 27.2 129
EVENING STAR 9200 30.3 19.1 159 46.8 34.7 135
MARQUETTE 8760 .4 -M * 18.3 -M *
SYLVAN ROAD 7120 .0 .0 * 25.6 21.2 121
YOUNTS PEAK 8350 -M 5.2 * -M 20.5 *
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Basin Index (%) 141* 129
POWDER RIVER
BEAR TRAP MEADOW 8200 .0 .0 * 15.3 13.7 112
CLOUD PEAK RESERVOIR 9860 15.5 7.4 209 27.1 21.0 129
GRAVE SPRINGS 8550 .0 .0 * 16.1 16.0 101
HANSEN SAWMILL 8360 .0 .0 * 17.2 14.0 123
MIDDLE POWDER 7760 .0 .0 * 19.2 17.2 112
POWDER RIVER PASS 9480 3.1 .0 * 20.8 18.5 112
SOLDIER PARK 8720 .0 -M * 17.5 -M *
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Basin Index (%) 251* 115
TONGUE RIVER
BIG GOOSE 7990 1.1 .0 * 20.6 18.1 114
BONE SPRINGS DIV 9350 14.4 10.1 143 22.8 22.0 104
BURGESS JUNCTION 7880 4.5 .4 1125* 22.3 17.9 125
DOME LAKE 8880 8.2 .0 * 23.4 20.1 116
LITTLE GOOSE 8870 3.6 -M * 23.6 -M *
SUCKER CREEK 8880 6.5 1.5 433 25.8 21.3 121
TIE CREEK 6870 .0 .0 * 19.8 18.5 107
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Basin Index (%) 289* 114
BELLE FOURCHE
COLE CANYON 5910 .0 .0 * 18.4 16.2 114
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Basin Index (%) * 114
CHEYENNE RIVER BASIN
BLIND PARK 6890 .0 .0 * 21.3 18.1 118
NORTH RAPID CREEK 6130 .0 .0 * 20.9 15.7 133
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Basin Index (%) * 125
UPPER N. PLATTE
ARAPAHO RIDGE 10960 21.5 9.3 231 35.3 29.1 121
BLACKHALL MTN 9820 26.6 -M * 44.4 -M *
COLUMBINE 9160 6.4 .0 * 42.6 31.4 136
DIVIDE PEAK 8880 .0 .0 * 30.0 27.3 110
JOE WRIGHT 10120 27.2 15.1 180 43.0 34.1 126
LAPRELE CREEK 8375 .1 .0 * 18.0 17.8 101
MED BOW 10500 -M -M * 49.3 -M *
NORTH FRENCH CREEK 10130 29.5 22.2 133 44.2 34.9 127
NEVER SUMMER 10280 25.9 16.2 160 28.8 -M *
OLD BATTLE 10000 33.1 25.6 129 45.5 43.3 105
RAWAH 9020 .0 .0 * 25.9 19.4 134
SAGE CREEK BASIN 7850 .0 .0 * 14.7 17.8 83
SAND LAKE 10050 37.9 21.5 176 42.9 32.9 130
SOUTH BRUSH CREEK 8440 .0 .0 * 20.0 20.9 96
TOWER 10500 44.2 38.7 114 61.1 49.0 125
WEBBER SPRINGS 9250 9.6 .4 2400* 37.3 32.9 113
WILLOW CREEK PASS 9540 4.4 .9 489* 21.3 18.3 116
ZIRKEL 9340 -M .0 * 48.9 33.8 145
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Basin Index (%) 160* 120
SWEETWATER
DEER PARK 9700 5.6 4.6 122 24.8 26.9 92
LARSEN CREEK 9000 .0 .6 0* 17.9 -M *
SOUTH PASS 9040 .6 .5 120* 19.3 23.4 82
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Basin Index (%) 109* 88
LOWER N. PLATTE
CASPER MTN. 7900 .1 .0 * 21.8 21.5 101
LAPRELE CREEK 8375 .1 .0 * 18.0 17.8 101
RENO HILL 8400 4.4 .0 * 29.0 22.4 129
WINDY PEAK 7900 .0 .0 * 17.7 15.9 111
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Basin Index (%) * 111
LARAMIE RIVER
BROOKLYN LAKE 10240 18.9 6.9 274 38.6 28.2 137
CINNABAR PARK 9574 16.0 2.8 571 37.5 30.1 125
CROW CREEK 8330 .0 .0 * 18.7 15.9 118
DEADMAN HILL 10220 18.6 9.5 196 31.7 23.8 133
RAWAH 9020 .0 .0 * 25.9 19.4 134
ROACH 9700 9.4 3.1 303 32.8 25.5 129
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Basin Index (%) 282 130
S. PLATTE
BLACK MOUNTAIN 8920 .1 -M * 20.2 -M *
CROW CREEK 8330 .0 .0 * 18.7 15.9 118
DEADMAN HILL 10220 18.6 9.5 196 31.7 23.8 133
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Basin Index (%) 196* 127
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 * 20.4 19.1 107
DIVIDE PEAK 8880 .0 .0 * 30.0 27.3 110
ELK RIVER 8700 .1 .0 * 28.1 25.3 111
LITTLE SNAKE RIVER 8915 -M 3.3 * -M 36.0 *
OLD BATTLE 10000 33.1 25.6 129 45.5 43.3 105
SAGE CREEK BASIN 7850 .0 .0 * 14.7 17.8 83
SANDSTONE RS 8150 -M .0 * 21.3 23.1 92
WHISKEY PARK 8950 14.7 8.8 167 47.1 34.7 136
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Basin Index (%) 139* 109
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .1 .0 * 17.0 17.7 96
BLIND BULL SUM 8650 30.3 13.2 230 26.1 24.2 108
EAST RIM DIVIDE 7930 .0 .0 * 17.9 14.9 120
ELKHART PARK G.S. 9400 3.1 .5 620* 20.8 17.7 118
GROS VENTRE SUMMIT 8750 .0 .0 * 17.5 16.9 104
GUNSIGHT PASS 9820 9.8 4.0 245 23.0 18.5 124
KENDALL R.S. 7740 .0 .0 * 25.3 17.5 145
LOOMIS PARK 8240 2.2 .0 * 27.8 21.3 131
NEW FORK LAKE 8340 .0 .0 * 15.8 14.4 110
POCKET CREEK 9360 .3 -M * 15.4 -M *
SNIDER BASIN 8060 .0 .0 * 23.0 17.4 132
SPRING CREEK DIVIDE 9000 23.4 13.0 180 36.8 29.0 127
TRIPLE PEAK 8500 9.8 .0 * 41.4 31.4 132
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Basin Index (%) 256* 121
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 * 16.3 -M *
HAMS FORK 7840 .0 .0 * 17.0 15.1 113
HEWINTA 9519 .0 .0 * 18.7 18.4 102
HICKERSON PARK 9145 .0 .0 * 12.7 14.2 89
HOLE-IN-ROCK 9150 .0 .0 * 13.9 13.8 101
INDIAN CREEK 9425 14.9 11.9 125 31.0 27.9 111
KELLEY R.S. 8180 .0 .0 * 23.7 22.7 104
SPIRIT LK 10235 .0 -M * 19.0 -M *
STEEL CREEK PARK 10200 9.7 10.1 96 21.5 21.9 98
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Basin Index (%) 112* 103
UPPER BEAR RIVER
BEAR RIVER RS 8777 .0 -M * 15.8 -M *
BUG LAKE 7950 .4 .0 * 24.5 24.3 101
BURTS MILLER RANCH 8000 .0 -M * 8.9 -M *
CHALK CREEK #1 8993 .7 7.4 9 27.7 31.8 87
HAYDEN FORK 9212 .0 .0 * 25.6 26.6 96
KELLEY R.S. 8180 .0 .0 * 23.7 22.7 104
LILY LAKE 9156 .0 .0 * 19.3 22.2 87
MONTE CRISTO 8960 2.9 5.6 52 31.0 32.6 95
SALT RIVER SUMMIT 7760 .0 .0 * 22.3 20.7 108
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Basin Index (%) 31* 96
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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.