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: JUNE 12 , 2009
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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 .0 .0 100 27.7 27.9 99
COTTONWOOD CREEK 7670 .0 .0 100 43.1 36.7 117
GRAND TARGHEE 9260 36.7 -M * 47.0 -M *
GRANITE CREEK 6770 .2 .0 29.3 25.7 114
GRASSY LAKE 7265 .0 4.8 0 46.6 46.3 101
GROS VENTRE SUMMIT 8750 .1 .0 22.1 18.5 119
GUNSIGHT PASS 9820 4.4 -M * 24.5 -M *
LEWIS LAKE DIVIDE 7850 .4 9.7 4 45.2 46.5 97
PHILLIPS BENCH 8200 1.2 7.4 16 40.1 37.6 107
SALT RIVER SUMMIT 7760 .1 .0 24.8 24.7 100
SNAKE RIVER STATION 6920 .0 .0 100 31.9 29.3 109
SPRING CREEK DIVIDE 9000 7.7 7.8 99 36.9 33.8 109
THUMB DIVIDE 7980 .1 .0 30.6 25.6 120
TOGWOTEE PASS 9580 19.2 16.6 116 41.1 33.6 122
TWO OCEAN PLATEAU 9240 30.3 19.8 153 41.8 37.4 112
WILLOW CREEK 8380 .8 6.5 12 54.1 43.7 124
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Basin wide percent of average 82 110
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 17.3 14.1 123 30.5 28.0 109
BLACK BEAR 8170 16.6 17.6 94 48.1 51.6 93
CANYON 7870 .0 .2 0 22.6 21.4 106
FISHER CREEK 9100 23.7 23.8 100 48.1 48.1 100
MADISON PLATEAU 7750 .0 2.8 0 34.4 35.3 97
NORTHEAST ENTRANCE 7350 .0 .0 100 20.4 18.5 110
PARKER PEAK 9400 8.7 12.8 68 27.4 24.3 113
SYLVAN LAKE 8420 .0 6.4 0 34.1 30.3 113
THUMB DIVIDE 7980 .1 .0 30.6 25.6 120
TWO OCEAN PLATEAU 9240 30.3 19.8 153 41.8 37.4 112
WHISKEY CREEK 6800 .0 .0 100 28.7 28.3 101
WHITE MILL 8700 12.5 12.7 98 34.2 36.4 94
WOLVERINE 7650 .0 .0 100 19.8 19.1 104
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Basin wide percent of average 99 104
WIND RIVER
BURROUGHS CREEK 8750 .5 1.0 50 27.2 23.5 116
COLD SPRINGS 9630 .4 .5 80 19.1 18.0 106
DEER PARK 9700 2.6 5.9 44 29.5 32.0 92
HOBBS PARK 10100 1.3 6.1 21 25.1 22.0 114
LITTLE WARM 9370 .0 .4 0 23.5 20.9 112
SOUTH PASS 9040 .3 3.2 9 25.3 26.9 94
ST. LAWRENCE ALT 8620 .3 .2 150 17.7 16.2 109
TOGWOTEE PASS 9580 19.2 16.6 116 41.1 33.6 122
TOWNSEND CREEK 8700 .1 .9 11 21.6 19.7 110
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Basin wide percent of average 71 108
BIGHORN BASIN
BALD MTN. 9380 8.2 10.8 76 23.2 26.5 88
BEAR TRAP MEADOW 8200 .0 .0 100 15.3 15.3 100
BLACKWATER 9780 21.7 19.1 114 34.9 30.3 115
BONE SPRINGS DIV 9350 .0 4.0 0 22.3 23.6 94
EVENING STAR 9200 17.2 19.5 88 43.5 35.7 122
GRAVE SPRINGS 8550 .0 .9 0 14.0 17.0 82
KIRWIN 9550 1.1 2.6 42 24.5 18.6 132
MARQUETTE 8760 .0 2.0 0 15.9 19.4 82
MIDDLE POWDER 7760 .0 .6 0 15.7 20.1 78
OWL CREEK 8975 .4 .3 133 14.6 12.1 121
POWDER RIVER PASS 9480 .0 .7 0 22.7 20.8 109
SHELL CREEK 9580 6.6 5.4 122 24.1 21.8 111
SYLVAN LAKE 8420 .0 6.4 0 34.1 30.3 113
SYLVAN ROAD 7120 .0 .0 100 28.9 24.2 119
TIMBER CREEK 7950 .2 .2 100 15.8 15.4 103
YOUNTS PEAK 8350 .0 2.3 0 24.4 23.1 106
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Basin wide percent of average 74 106
SHOSHONE RIVER
BLACKWATER 9780 21.7 19.1 114 34.9 30.3 115
EVENING STAR 9200 17.2 19.5 88 43.5 35.7 122
KIRWIN 9550 1.1 2.6 42 24.5 18.6 132
MARQUETTE 8760 .0 2.0 0 15.9 19.4 82
SYLVAN LAKE 8420 .0 6.4 0 34.1 30.3 113
SYLVAN ROAD 7120 .0 .0 100 28.9 24.2 119
YOUNTS PEAK 8350 .0 2.3 0 24.4 23.1 106
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Basin wide percent of average 77 114
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100 15.3 15.3 100
BIG GOOSE 7990 .0 .0 100 19.0 17.1 111
BONE SPRINGS DIV 9350 .0 4.0 0 22.3 23.6 94
BURGESS JUNCTION 7880 .0 .6 0 19.0 19.5 97
CLOUD PEAK RESERVOIR 9860 3.3 3.3 100 24.8 23.0 108
DOME LAKE 8880 .0 1.5 0 23.3 21.7 107
GRAVE SPRINGS 8550 .0 .9 0 14.0 17.0 82
HANSEN SAWMILL 8360 .0 .0 100 15.6 15.4 101
MIDDLE POWDER 7760 .0 .6 0 15.7 20.1 78
POWDER RIVER PASS 9480 .0 .7 0 22.7 20.8 109
SUCKER CREEK 8880 .0 1.2 0 25.3 22.7 111
TIE CREEK 6870 .0 .1 0 21.5 18.4 117
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Basin wide percent of average 26 102
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100 21.5 19.1 113
COLE CANYON 5910 .0 .0 100 19.5 14.3 136
NORTH RAPID CREEK 6130 .0 .0 100 17.8 15.5 115
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Basin wide percent of average * 120
UPPER N. PLATTE RIVER
COLUMBINE 9160 .1 .1 100 35.7 32.8 109
DIVIDE PEAK 8880 .1 .9 11 37.6 28.2 133
ELK RIVER 8700 .2 .0 29.7 26.7 111
JOE WRIGHT 10120 5.8 10.1 57 39.0 35.9 109
NORTH FRENCH CREEK 10130 -M 15.8 * -M 35.3 *
OLD BATTLE 10000 22.3 17.2 130 51.9 45.1 115
SAGE CREEK BASIN 7850 .1 .5 20 22.7 16.3 139
SOUTH BRUSH CREEK 8440 .0 .5 0 25.4 24.4 104
TOWER 10500 21.3 31.7 67 54.2 51.0 106
WEBBER SPRINGS 9250 .0 2.2 0 39.7 35.4 112
WILLOW CREEK PASS 9540 .0 .8 0 20.1 19.7 102
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Basin wide percent of average 78 113
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .2 5.6 4 31.4 32.0 98
CASPER MTN. 7900 .0 1.8 0 22.9 25.0 92
DEADMAN HILL 10220 .3 5.8 5 25.9 25.4 102
DEER PARK 9700 2.6 5.9 44 29.5 32.0 92
LAPRELE CREEK 8375 .0 .0 100 20.1 21.0 96
RENO HILL 8400 .1 1.4 7 25.6 25.6 100
ROACH 9700 .2 2.5 8 28.3 27.3 104
SAND LAKE 10050 18.6 16.8 111 42.2 35.3 120
SOUTH PASS 9040 .3 3.2 9 25.3 26.9 94
WINDY PEAK 7900 -M .0 * 18.2 18.0 101
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Basin wide percent of average 52 100
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 26.4 21.5 123
DIVIDE PEAK 8880 .1 .9 11 37.6 28.2 133
OLD BATTLE 10000 22.3 17.2 130 51.9 45.1 115
SANDSTONE RS 8150 .1 .0 29.2 25.4 115
WHISKEY PARK 8950 .0 5.6 0 45.3 38.7 117
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Basin wide percent of average 95 120
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .1 .0 22.1 19.3 115
BLIND BULL SUM 8650 10.2 11.8 86 29.0 28.8 101
EAST RIM DIVIDE 7930 .0 .0 100 18.6 16.7 111
ELKHART PARK G.S. 9400 .0 .0 100 22.9 19.9 115
GROS VENTRE SUMMIT 8750 .1 .0 22.1 18.5 119
GUNSIGHT PASS 9820 4.4 -M * 24.5 -M *
KENDALL R.S. 7740 .1 .0 20.2 19.3 105
LOOMIS PARK 8240 .2 .0 26.9 23.1 116
NEW FORK LAKE 8340 1.6 .0 18.0 16.6 108
SNIDER BASIN 8060 .0 .0 100 20.8 20.9 100
SPRING CREEK DIVIDE 9000 7.7 7.8 99 36.9 33.8 109
TRIPLE PEAK 8500 .2 .0 37.3 32.7 114
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Basin wide percent of average 91* 110
LOWER GREEN RIVER
HAMS FORK 7840 .2 .0 20.0 17.6 114
HEWINTA 9519 .0 .0 100 19.2 20.9 92
HICKERSON PARK 9145 .0 .0 100 16.3 13.2 123
HOLE-IN-ROCK 9150 .0 .0 100 14.5 12.9 112
INDIAN CREEK 9425 2.9 8.3 35 30.8 33.2 93
KELLEY R.S. 8180 .0 .0 100 26.7 26.9 99
STEEL CREEK PARK 10200 .0 6.7 0 23.4 23.9 98
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Basin wide percent of average 19 102
UPPER BEAR RIVER
BUG LAKE 7950 .2 .4 50 24.9 25.8 97
HAYDEN FORK 9212 .1 .2 50 29.8 29.3 102
KELLEY R.S. 8180 .0 .0 100 26.7 26.9 99
LILY LAKE 9156 .1 .2 50 24.1 24.9 97
MONTE CRISTO 8960 .0 6.0 0 36.4 34.9 104
SALT RIVER SUMMIT 7760 .1 .0 24.8 24.7 100
TRIAL LAKE 9992 .2 8.6 2 32.9 34.3 96
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Basin wide percent of average 4 99
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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.