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: JUNE 2 , 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 1.3 .0 33.1 27.2 122
COTTONWOOD CREEK 7670 7.7 4.5 171 31.3 35.9 87
GRAND TARGHEE 9260 55.9 -M * 44.6 -M *
GRANITE CREEK 6770 .2 .4 50 28.6 25.0 114
GRASSY LAKE 7265 20.9 13.1 160 53.3 45.2 118
GROS VENTRE SUMMIT 8750 .7 3.3 21 18.4 17.8 103
GUNSIGHT PASS 9820 5.6 -M * 19.5 -M *
LEWIS LAKE DIVIDE 7850 23.2 17.1 136 45.5 45.5 100
PHILLIPS BENCH 8200 20.7 13.3 156 42.2 36.7 115
SALT RIVER SUMMIT 7760 .0 .0 100 20.7 24.2 86
SNAKE RIVER STATION 6920 .0 .0 100 34.2 28.5 120
SPRING CREEK DIVIDE 9000 14.4 14.3 101 29.8 33.2 90
THUMB DIVIDE 7980 .7 1.4 50 26.7 24.9 107
TOGWOTEE PASS 9580 28.0 21.5 130 38.1 32.8 116
TWO OCEAN PLATEAU 9240 42.1 24.7 170 41.2 36.4 113
WILLOW CREEK 8380 18.9 13.6 139 49.6 42.7 116
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Basin wide percent of average 140 108
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 27.3 19.5 140 31.7 27.1 117
BLACK BEAR 8170 42.3 25.3 167 52.7 50.4 105
CANYON 7870 4.5 1.1 409 25.9 20.6 126
FISHER CREEK 9100 38.9 29.6 131 48.7 46.8 104
MADISON PLATEAU 7750 21.2 8.3 255 40.3 34.4 117
NORTHEAST ENTRANCE 7350 .1 .3 33 19.6 17.7 111
PARKER PEAK 9400 28.6 17.8 161 34.8 23.3 149
SYLVAN LAKE 8420 18.6 10.8 172 35.9 29.1 123
THUMB DIVIDE 7980 .7 1.4 50 26.7 24.9 107
TWO OCEAN PLATEAU 9240 42.1 24.7 170 41.2 36.4 113
WHISKEY CREEK 6800 8.0 .9 889 31.3 27.4 114
WHITE MILL 8700 26.0 17.5 149 35.3 35.3 100
WOLVERINE 7650 .0 .0 100 20.5 18.4 111
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Basin wide percent of average 164 113
WIND RIVER
BURROUGHS CREEK 8750 9.6 3.1 310 24.9 22.7 110
COLD SPRINGS 9630 .0 1.0 0 17.1 17.2 99
DEER PARK 9700 13.5 7.3 185 28.5 31.0 92
HOBBS PARK 10100 14.5 9.7 149 23.5 21.1 111
LITTLE WARM 9370 .1 1.6 6 20.1 20.1 100
SOUTH PASS 9040 6.0 5.9 102 25.1 26.1 96
ST. LAWRENCE ALT 8620 .1 .5 20 15.3 15.3 100
TOGWOTEE PASS 9580 28.0 21.5 130 38.1 32.8 116
TOWNSEND CREEK 8700 .0 1.6 0 19.9 18.9 105
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Basin wide percent of average 138 104
BIGHORN BASIN
BALD MTN. 9380 18.4 16.2 114 24.8 25.4 98
BEAR TRAP MEADOW 8200 .1 .0 18.5 14.3 129
BLACKWATER 9780 30.7 24.2 127 34.0 29.0 117
BONE SPRINGS DIV 9350 13.2 7.7 171 27.2 22.4 121
EVENING STAR 9200 28.9 26.1 111 44.7 34.5 130
GRAVE SPRINGS 8550 5.3 1.5 353 18.5 16.2 114
KIRWIN 9550 8.9 5.2 171 21.9 17.6 124
MARQUETTE 8760 6.5 3.9 167 20.1 18.2 110
MIDDLE POWDER 7760 2.1 2.3 91 17.6 19.2 92
OWL CREEK 8975 .3 .4 75 12.9 11.2 115
POWDER RIVER PASS 9480 7.4 1.9 389 24.4 19.7 124
SHELL CREEK 9580 17.8 9.9 180 25.1 20.6 122
SYLVAN LAKE 8420 18.6 10.8 172 35.9 29.1 123
SYLVAN ROAD 7120 .0 .0 100 27.7 23.4 118
TIMBER CREEK 7950 2.0 .4 500 17.9 14.5 123
YOUNTS PEAK 8350 10.3 6.4 161 24.1 22.2 109
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Basin wide percent of average 146 117
SHOSHONE RIVER
BLACKWATER 9780 30.7 24.2 127 34.0 29.0 117
EVENING STAR 9200 28.9 26.1 111 44.7 34.5 130
KIRWIN 9550 8.9 5.2 171 21.9 17.6 124
MARQUETTE 8760 6.5 3.9 167 20.1 18.2 110
SYLVAN LAKE 8420 18.6 10.8 172 35.9 29.1 123
SYLVAN ROAD 7120 .0 .0 100 27.7 23.4 118
YOUNTS PEAK 8350 10.3 6.4 161 24.1 22.2 109
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Basin wide percent of average 136 120
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .1 .0 18.5 14.3 129
BIG GOOSE 7990 4.0 2.1 190 22.0 16.5 133
BONE SPRINGS DIV 9350 13.2 7.7 171 27.2 22.4 121
BURGESS JUNCTION 7880 10.3 2.2 468 23.7 18.6 127
CLOUD PEAK RESERVOIR 9860 19.5 7.2 271 29.7 21.8 136
DOME LAKE 8880 8.4 3.0 280 26.0 20.7 126
GRAVE SPRINGS 8550 5.3 1.5 353 18.5 16.2 114
HANSEN SAWMILL 8360 1.7 .2 850 22.0 14.2 155
MIDDLE POWDER 7760 2.1 2.3 91 17.6 19.2 92
POWDER RIVER PASS 9480 7.4 1.9 389 24.4 19.7 124
SUCKER CREEK 8880 13.4 3.3 406 28.2 21.6 131
TIE CREEK 6870 -M .0 * 22.2 17.3 128
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Basin wide percent of average 272 126
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100 18.5 18.0 103
COLE CANYON 5910 .0 .0 100 18.4 13.0 142
NORTH RAPID CREEK 6130 .0 .0 100 19.8 14.1 140
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Basin wide percent of average * 126
UPPER N. PLATTE RIVER
COLUMBINE 9160 1.5 1.6 94 35.3 32.3 109
DIVIDE PEAK 8880 1.7 3.3 52 30.1 27.6 109
ELK RIVER 8700 .2 1.1 18 28.9 26.1 111
JOE WRIGHT 10120 18.0 16.3 110 38.0 34.9 109
NORTH FRENCH CREEK 10130 24.0 23.1 104 38.9 34.4 113
OLD BATTLE 10000 30.6 24.8 123 49.2 44.3 111
SAGE CREEK BASIN 7850 .0 1.9 0 21.2 16.0 132
SOUTH BRUSH CREEK 8440 .1 1.6 6 23.5 23.7 99
TOWER 10500 39.0 41.6 94 51.8 50.1 103
WEBBER SPRINGS 9250 9.5 6.0 158 38.4 34.8 110
WILLOW CREEK PASS 9540 10.8 2.8 386 21.9 18.9 116
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Basin wide percent of average 109 110
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 9.8 11.0 89 30.3 31.2 97
CASPER MTN. 7900 4.0 3.9 103 25.8 24.1 107
DEADMAN HILL 10220 14.6 10.7 136 27.4 24.8 110
DEER PARK 9700 13.5 7.3 185 28.5 31.0 92
LAPRELE CREEK 8375 .0 .7 0 20.5 20.2 101
RENO HILL 8400 5.2 3.2 162 29.9 24.8 121
ROACH 9700 8.7 5.5 158 29.5 26.5 111
SAND LAKE 10050 29.2 24.9 117 40.2 34.4 117
SOUTH PASS 9040 6.0 5.9 102 25.1 26.1 96
WINDY PEAK 7900 .8 .0 18.4 17.2 107
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Basin wide percent of average 124 106
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 21.3 21.0 101
DIVIDE PEAK 8880 1.7 3.3 52 30.1 27.6 109
OLD BATTLE 10000 30.6 24.8 123 49.2 44.3 111
SANDSTONE RS 8150 .2 .0 26.5 24.8 107
WHISKEY PARK 8950 17.9 12.7 141 44.3 37.9 117
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Basin wide percent of average 123 110
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 1.0 0 18.7 18.7 100
BLIND BULL SUM 8650 21.8 17.2 127 23.4 28.2 83
EAST RIM DIVIDE 7930 .0 1.0 0 15.0 16.1 93
ELKHART PARK G.S. 9400 .8 2.9 28 16.4 19.1 86
GROS VENTRE SUMMIT 8750 .7 3.3 21 18.4 17.8 103
GUNSIGHT PASS 9820 5.6 -M * 19.5 -M *
KENDALL R.S. 7740 .1 .0 17.8 18.7 95
LOOMIS PARK 8240 .1 1.9 5 22.9 22.6 101
NEW FORK LAKE 8340 .0 .0 100 14.3 16.0 89
SNIDER BASIN 8060 .0 .0 100 18.2 20.5 89
SPRING CREEK DIVIDE 9000 14.4 14.3 101 29.8 33.2 90
TRIPLE PEAK 8500 11.4 4.0 285 36.7 32.0 115
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Basin wide percent of average 108 95
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 14.8 17.1 87
HEWINTA 9519 -M .5 * 21.8 20.4 107
HICKERSON PARK 9145 .0 .0 100 12.8 12.7 101
HOLE-IN-ROCK 9150 .0 .0 100 13.7 12.3 111
INDIAN CREEK 9425 17.5 14.1 124 -M 32.6 *
KELLEY R.S. 8180 .6 1.0 60 23.2 26.3 88
STEEL CREEK PARK 10200 15.7 11.3 139 24.4 23.3 105
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Basin wide percent of average 128 99
UPPER BEAR RIVER
BUG LAKE 7950 2.7 2.3 117 21.9 25.2 87
HAYDEN FORK 9212 .1 1.2 8 29.8 28.6 104
KELLEY R.S. 8180 .6 1.0 60 23.2 26.3 88
LILY LAKE 9156 .7 1.2 58 24.0 24.2 99
MONTE CRISTO 8960 12.9 11.8 109 32.2 34.1 94
SALT RIVER SUMMIT 7760 .0 .0 100 20.7 24.2 86
TRIAL LAKE 9992 10.1 13.9 73 31.0 33.5 93
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Basin wide percent of average 86 93
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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.