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 THURSDAY: MAY 29 , 2008
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 3.4 .0 32.7 26.8 122
COTTONWOOD CREEK 7670 11.3 6.7 169 31.4 35.5 88
GRAND TARGHEE 9260 55.9 -M * 44.1 -M *
GRANITE CREEK 6770 3.4 2.1 162 28.1 24.7 114
GRASSY LAKE 7265 24.3 16.6 146 52.7 44.7 118
GROS VENTRE SUMMIT 8750 4.5 4.9 92 18.6 17.4 107
GUNSIGHT PASS 9820 7.5 -M * 19.4 -M *
LEWIS LAKE DIVIDE 7850 26.8 20.2 133 44.7 45.1 99
PHILLIPS BENCH 8200 23.5 15.9 148 41.9 36.3 115
SALT RIVER SUMMIT 7760 .0 .0 100 20.4 23.9 85
SNAKE RIVER STATION 6920 .0 .0 100 33.2 28.1 118
SPRING CREEK DIVIDE 9000 16.7 17.0 98 29.7 32.9 90
THUMB DIVIDE 7980 4.0 3.4 118 25.5 24.6 104
TOGWOTEE PASS 9580 29.4 23.3 126 37.9 32.4 117
TWO OCEAN PLATEAU 9240 43.2 26.5 163 40.6 36.0 113
WILLOW CREEK 8380 22.2 16.5 135 49.2 42.2 117
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Basin wide percent of average 137 108
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 28.3 21.6 131 31.6 26.7 118
BLACK BEAR 8170 44.1 28.4 155 51.9 49.9 104
CANYON 7870 7.8 2.3 339 25.8 20.2 128
FISHER CREEK 9100 -M 31.3 * 48.4 46.3 105
MADISON PLATEAU 7750 24.5 10.9 225 39.9 33.9 118
NORTHEAST ENTRANCE 7350 .0 .6 0 19.3 17.3 112
PARKER PEAK 9400 30.2 19.9 152 -M 22.9 *
SYLVAN LAKE 8420 20.9 13.3 157 35.4 28.6 124
THUMB DIVIDE 7980 4.0 3.4 118 25.5 24.6 104
TWO OCEAN PLATEAU 9240 43.2 26.5 163 40.6 36.0 113
WHISKEY CREEK 6800 11.2 2.2 509 31.1 27.0 115
WHITE MILL 8700 28.0 19.4 144 35.1 34.8 101
WOLVERINE 7650 .0 .1 0 20.3 18.0 113
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Basin wide percent of average 163 111
WIND RIVER
BURROUGHS CREEK 8750 11.6 4.6 252 24.8 22.3 111
COLD SPRINGS 9630 1.6 1.1 145 17.0 16.8 101
DEER PARK 9700 14.8 10.1 147 28.4 30.6 93
HOBBS PARK 10100 16.3 11.3 144 23.3 20.7 113
LITTLE WARM 9370 1.5 2.7 56 20.0 19.8 101
SOUTH PASS 9040 9.1 7.9 115 25.1 25.8 97
ST. LAWRENCE ALT 8620 1.7 .7 243 15.3 14.9 103
TOGWOTEE PASS 9580 29.4 23.3 126 37.9 32.4 117
TOWNSEND CREEK 8700 2.1 2.2 95 19.9 18.6 107
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Basin wide percent of average 138 105
BIGHORN BASIN
BALD MTN. 9380 20.2 18.0 112 24.6 25.0 98
BEAR TRAP MEADOW 8200 .0 .0 100 18.4 13.9 132
BLACKWATER 9780 31.6 26.1 121 33.7 28.5 118
BONE SPRINGS DIV 9350 16.4 10.2 161 26.9 22.0 122
EVENING STAR 9200 30.5 28.0 109 44.5 34.0 131
GRAVE SPRINGS 8550 8.7 2.4 362 18.5 15.9 116
KIRWIN 9550 10.4 6.6 158 21.7 17.2 126
MARQUETTE 8760 8.8 5.1 173 20.1 17.6 114
MIDDLE POWDER 7760 6.8 4.0 170 17.5 18.8 93
OWL CREEK 8975 2.6 .7 371 12.9 10.8 119
POWDER RIVER PASS 9480 9.2 3.1 297 24.1 19.3 125
SHELL CREEK 9580 18.6 12.0 155 24.5 20.2 121
SYLVAN LAKE 8420 20.9 13.3 157 35.4 28.6 124
SYLVAN ROAD 7120 .0 .2 0 27.7 23.0 120
TIMBER CREEK 7950 4.0 .8 500 18.0 14.1 128
YOUNTS PEAK 8350 13.2 8.8 150 23.8 21.8 109
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Basin wide percent of average 145 119
SHOSHONE RIVER
BLACKWATER 9780 31.6 26.1 121 33.7 28.5 118
EVENING STAR 9200 30.5 28.0 109 44.5 34.0 131
KIRWIN 9550 10.4 6.6 158 21.7 17.2 126
MARQUETTE 8760 8.8 5.1 173 20.1 17.6 114
SYLVAN LAKE 8420 20.9 13.3 157 35.4 28.6 124
SYLVAN ROAD 7120 .0 .2 0 27.7 23.0 120
YOUNTS PEAK 8350 13.2 8.8 150 23.8 21.8 109
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Basin wide percent of average 131 121
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100 18.4 13.9 132
BIG GOOSE 7990 7.0 4.4 159 21.9 16.2 135
BONE SPRINGS DIV 9350 16.4 10.2 161 26.9 22.0 122
BURGESS JUNCTION 7880 13.0 4.1 317 23.4 18.3 128
CLOUD PEAK RESERVOIR 9860 20.9 9.3 225 29.5 21.3 138
DOME LAKE 8880 11.3 4.2 269 26.0 20.3 128
GRAVE SPRINGS 8550 8.7 2.4 362 18.5 15.9 116
HANSEN SAWMILL 8360 4.2 .4 1050 21.7 13.8 157
MIDDLE POWDER 7760 6.8 4.0 170 17.5 18.8 93
POWDER RIVER PASS 9480 9.2 3.1 297 24.1 19.3 125
SUCKER CREEK 8880 16.6 4.8 346 28.0 21.2 132
TIE CREEK 6870 -M .0 * 22.1 16.9 131
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Basin wide percent of average 243 128
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100 18.5 17.5 106
COLE CANYON 5910 .0 .0 100 17.8 12.6 141
NORTH RAPID CREEK 6130 -M .0 * 19.7 13.8 143
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Basin wide percent of average * 128
UPPER N. PLATTE RIVER
COLUMBINE 9160 8.3 3.4 244 35.5 32.0 111
DIVIDE PEAK 8880 8.4 5.0 168 30.1 27.2 111
ELK RIVER 8700 1.7 1.9 89 29.6 25.8 115
JOE WRIGHT 10120 23.7 18.7 127 38.0 34.5 110
NORTH FRENCH CREEK 10130 27.7 26.1 106 38.9 34.0 114
OLD BATTLE 10000 34.1 27.8 123 49.2 43.9 112
SAGE CREEK BASIN 7850 .0 2.9 0 21.3 15.8 135
SOUTH BRUSH CREEK 8440 .1 2.3 4 23.4 23.4 100
TOWER 10500 42.8 45.0 95 51.8 49.6 104
WEBBER SPRINGS 9250 14.6 8.4 174 38.5 34.4 112
WILLOW CREEK PASS 9540 14.6 4.4 332 21.9 18.5 118
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Basin wide percent of average 121 112
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 14.6 13.7 107 30.4 30.8 99
CASPER MTN. 7900 9.1 5.2 175 25.6 23.7 108
DEADMAN HILL 10220 18.3 12.7 144 27.5 24.4 113
DEER PARK 9700 14.8 10.1 147 28.4 30.6 93
LAPRELE CREEK 8375 -M 1.1 * 20.6 19.8 104
RENO HILL 8400 10.5 4.3 244 29.9 24.4 123
ROACH 9700 13.2 7.2 183 29.6 26.1 113
SAND LAKE 10050 32.6 28.1 116 40.2 33.9 119
SOUTH PASS 9040 9.1 7.9 115 25.1 25.8 97
WINDY PEAK 7900 .8 .2 400 18.4 16.8 110
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Basin wide percent of average 138 108
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 21.4 20.8 103
DIVIDE PEAK 8880 8.4 5.0 168 30.1 27.2 111
OLD BATTLE 10000 34.1 27.8 123 49.2 43.9 112
SANDSTONE RS 8150 .2 .5 40 26.8 24.6 109
WHISKEY PARK 8950 31.3 16.2 193 44.2 37.5 118
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Basin wide percent of average 149 111
UPPER GREEN RIVER
BIG SANDY OPENING 9080 2.1 2.9 72 18.6 18.4 101
BLIND BULL SUM 8650 24.3 19.4 125 23.4 27.9 84
EAST RIM DIVIDE 7930 .0 3.0 0 15.0 15.9 94
ELKHART PARK G.S. 9400 2.8 4.5 62 15.9 18.8 85
GROS VENTRE SUMMIT 8750 4.5 4.9 92 18.6 17.4 107
GUNSIGHT PASS 9820 7.5 -M * 19.4 -M *
KENDALL R.S. 7740 .1 .0 17.6 18.4 96
LOOMIS PARK 8240 1.4 3.7 38 22.8 22.3 102
NEW FORK LAKE 8340 .0 .0 100 13.3 15.7 85
SNIDER BASIN 8060 .0 1.0 0 18.2 20.3 90
SPRING CREEK DIVIDE 9000 16.7 17.0 98 29.7 32.9 90
TRIPLE PEAK 8500 14.7 7.2 204 36.5 31.7 115
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Basin wide percent of average 105 96
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 14.7 16.8 87
HEWINTA 9519 -M 1.0 * 21.7 20.1 108
HICKERSON PARK 9145 .0 .1 0 12.8 12.4 103
HOLE-IN-ROCK 9150 .0 .1 0 13.7 12.0 114
INDIAN CREEK 9425 18.9 16.5 115 -M 32.2 *
KELLEY R.S. 8180 3.5 2.8 125 23.1 26.0 89
STEEL CREEK PARK 10200 17.6 13.2 133 24.4 22.9 107
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Basin wide percent of average 122 100
UPPER BEAR RIVER
BUG LAKE 7950 6.8 3.7 184 22.0 24.9 88
HAYDEN FORK 9212 .2 2.1 10 29.8 28.2 106
KELLEY R.S. 8180 3.5 2.8 125 23.1 26.0 89
LILY LAKE 9156 .7 2.1 33 23.9 23.9 100
MONTE CRISTO 8960 17.0 14.5 117 32.0 33.8 95
SALT RIVER SUMMIT 7760 .0 .0 100 20.4 23.9 85
TRIAL LAKE 9992 13.7 16.3 84 30.8 33.0 93
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Basin wide percent of average 101 94
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Average Snow Water Equivalent and
Total Precipitation values
If the Basin wide percent of average 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 Average represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the average 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.
Reference period for average conditions is 1961-90.
Provisional data, subject to revision.
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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.