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 WEDNESDAY: JUNE 10 , 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 27.3 27.8 98
COTTONWOOD CREEK 7670 .0 .6 0 41.7 36.5 114
GRAND TARGHEE 9260 37.0 -M * 46.3 -M *
GRANITE CREEK 6770 .2 .0 29.0 25.5 114
GRASSY LAKE 7265 .0 6.7 0 45.8 46.1 99
GROS VENTRE SUMMIT 8750 .1 .4 25 21.8 18.3 119
GUNSIGHT PASS 9820 4.1 -M * 23.6 -M *
LEWIS LAKE DIVIDE 7850 2.1 11.4 18 44.9 46.3 97
PHILLIPS BENCH 8200 2.5 8.7 29 39.7 37.4 106
SALT RIVER SUMMIT 7760 .0 .0 100 23.5 24.6 96
SNAKE RIVER STATION 6920 .0 .0 100 31.4 29.1 108
SPRING CREEK DIVIDE 9000 8.3 9.3 89 35.9 33.7 107
THUMB DIVIDE 7980 .2 .0 30.3 25.4 119
TOGWOTEE PASS 9580 19.4 17.7 110 40.4 33.5 121
TWO OCEAN PLATEAU 9240 30.3 21.0 144 41.1 37.2 110
WILLOW CREEK 8380 2.2 8.1 27 53.3 43.5 123
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Basin wide percent of average 77 109
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 17.7 15.4 115 30.4 27.8 109
BLACK BEAR 8170 18.6 19.3 96 48.0 51.3 94
CANYON 7870 .0 .3 0 22.7 21.2 107
FISHER CREEK 9100 24.1 25.3 95 48.0 47.8 100
MADISON PLATEAU 7750 1.0 3.8 26 34.3 35.1 98
NORTHEAST ENTRANCE 7350 .0 .0 100 20.4 18.3 111
PARKER PEAK 9400 9.2 13.6 68 27.3 24.1 113
SYLVAN LAKE 8420 1.1 7.2 15 33.8 30.0 113
THUMB DIVIDE 7980 .2 .0 30.3 25.4 119
TWO OCEAN PLATEAU 9240 30.3 21.0 144 41.1 37.2 110
WHISKEY CREEK 6800 .0 .0 100 28.6 28.1 102
WHITE MILL 8700 13.3 13.9 96 34.0 36.2 94
WOLVERINE 7650 .0 .0 100 19.7 19.0 104
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Basin wide percent of average 96 104
WIND RIVER
BURROUGHS CREEK 8750 1.2 1.3 92 26.1 23.3 112
COLD SPRINGS 9630 .0 .5 0 18.0 17.9 101
DEER PARK 9700 2.1 6.1 34 27.9 31.8 88
HOBBS PARK 10100 .0 6.9 0 23.5 21.8 108
LITTLE WARM 9370 .0 .5 0 22.7 20.7 110
SOUTH PASS 9040 .0 3.5 0 23.8 26.7 89
ST. LAWRENCE ALT 8620 .0 .2 0 16.3 16.0 102
TOGWOTEE PASS 9580 19.4 17.7 110 40.4 33.5 121
TOWNSEND CREEK 8700 .0 1.0 0 20.6 19.5 106
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Basin wide percent of average 60 104
BIGHORN BASIN
BALD MTN. 9380 8.1 12.1 67 23.0 26.2 88
BEAR TRAP MEADOW 8200 .0 .1 0 15.3 15.1 101
BLACKWATER 9780 21.0 20.1 104 34.2 30.0 114
BONE SPRINGS DIV 9350 .9 4.8 19 22.0 23.4 94
EVENING STAR 9200 17.8 21.0 85 43.3 35.5 122
GRAVE SPRINGS 8550 .0 1.1 0 13.6 16.9 80
KIRWIN 9550 .6 3.2 19 23.3 18.4 127
MARQUETTE 8760 .0 2.3 0 15.9 19.1 83
MIDDLE POWDER 7760 .0 .7 0 15.6 19.9 78
OWL CREEK 8975 .8 .2 400 13.6 11.9 114
POWDER RIVER PASS 9480 .0 .8 0 22.1 20.6 107
SHELL CREEK 9580 6.5 6.5 100 23.6 21.6 109
SYLVAN LAKE 8420 1.1 7.2 15 33.8 30.0 113
SYLVAN ROAD 7120 .0 .0 100 28.3 24.0 118
TIMBER CREEK 7950 .0 .2 0 15.3 15.2 101
YOUNTS PEAK 8350 .9 3.0 30 23.8 22.9 104
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Basin wide percent of average 69 105
SHOSHONE RIVER
BLACKWATER 9780 21.0 20.1 104 34.2 30.0 114
EVENING STAR 9200 17.8 21.0 85 43.3 35.5 122
KIRWIN 9550 .6 3.2 19 23.3 18.4 127
MARQUETTE 8760 .0 2.3 0 15.9 19.1 83
SYLVAN LAKE 8420 1.1 7.2 15 33.8 30.0 113
SYLVAN ROAD 7120 .0 .0 100 28.3 24.0 118
YOUNTS PEAK 8350 .9 3.0 30 23.8 22.9 104
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Basin wide percent of average 73 113
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .1 0 15.3 15.1 101
BIG GOOSE 7990 .0 .0 100 18.7 17.0 110
BONE SPRINGS DIV 9350 .9 4.8 19 22.0 23.4 94
BURGESS JUNCTION 7880 .0 .7 0 18.7 19.4 96
CLOUD PEAK RESERVOIR 9860 2.8 4.1 68 24.4 22.8 107
DOME LAKE 8880 .0 1.6 0 23.0 21.5 107
GRAVE SPRINGS 8550 .0 1.1 0 13.6 16.9 80
HANSEN SAWMILL 8360 .0 .1 0 15.4 15.1 102
MIDDLE POWDER 7760 .0 .7 0 15.6 19.9 78
POWDER RIVER PASS 9480 .0 .8 0 22.1 20.6 107
SUCKER CREEK 8880 .0 1.4 0 25.1 22.5 112
TIE CREEK 6870 .0 .1 0 21.3 18.2 117
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Basin wide percent of average 24 101
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100 20.6 18.9 109
COLE CANYON 5910 .0 .0 100 18.7 14.0 134
NORTH RAPID CREEK 6130 .0 .0 100 17.0 15.2 112
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Basin wide percent of average * 117
UPPER N. PLATTE RIVER
COLUMBINE 9160 .2 .3 67 34.9 32.7 107
DIVIDE PEAK 8880 .1 1.3 8 37.3 28.1 133
ELK RIVER 8700 .2 .2 100 29.2 26.5 110
JOE WRIGHT 10120 6.6 11.5 57 37.9 35.7 106
NORTH FRENCH CREEK 10130 -M 17.5 * -M 35.1 *
OLD BATTLE 10000 23.6 19.0 124 51.2 45.0 114
SAGE CREEK BASIN 7850 .1 .8 12 21.9 16.3 134
SOUTH BRUSH CREEK 8440 .0 .7 0 24.9 24.3 102
TOWER 10500 21.1 34.1 62 53.3 50.8 105
WEBBER SPRINGS 9250 .0 2.8 0 39.3 35.3 111
WILLOW CREEK PASS 9540 .0 1.1 0 19.3 19.5 99
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Basin wide percent of average 72 111
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .2 6.7 3 31.0 31.8 97
CASPER MTN. 7900 .0 2.2 0 22.1 24.8 89
DEADMAN HILL 10220 1.3 6.8 19 25.7 25.3 102
DEER PARK 9700 2.1 6.1 34 27.9 31.8 88
LAPRELE CREEK 8375 .0 .1 0 19.0 20.8 91
RENO HILL 8400 .0 1.8 0 24.1 25.5 95
ROACH 9700 .2 3.1 6 27.7 27.1 102
SAND LAKE 10050 19.2 18.7 103 41.5 35.1 118
SOUTH PASS 9040 .0 3.5 0 23.8 26.7 89
WINDY PEAK 7900 -M .0 * 17.6 17.8 99
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Basin wide percent of average 47 98
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 26.2 21.4 122
DIVIDE PEAK 8880 .1 1.3 8 37.3 28.1 133
OLD BATTLE 10000 23.6 19.0 124 51.2 45.0 114
SANDSTONE RS 8150 .2 .0 28.9 25.3 114
WHISKEY PARK 8950 .0 7.0 0 44.7 38.5 116
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Basin wide percent of average 87 119
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .1 .0 20.9 19.2 109
BLIND BULL SUM 8650 11.8 13.1 90 28.6 28.7 100
EAST RIM DIVIDE 7930 .0 .0 100 18.1 16.6 109
ELKHART PARK G.S. 9400 -M .0 * 21.9 19.7 111
GROS VENTRE SUMMIT 8750 .1 .4 25 21.8 18.3 119
GUNSIGHT PASS 9820 4.1 -M * 23.6 -M *
KENDALL R.S. 7740 .1 .0 19.6 19.1 103
LOOMIS PARK 8240 .1 .0 26.4 23.0 115
NEW FORK LAKE 8340 1.6 .0 18.0 16.5 109
SNIDER BASIN 8060 .0 .0 100 20.4 20.8 98
SPRING CREEK DIVIDE 9000 8.3 9.3 89 35.9 33.7 107
TRIPLE PEAK 8500 .1 .0 36.6 32.6 112
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Basin wide percent of average 89* 108
LOWER GREEN RIVER
HAMS FORK 7840 .2 .0 19.1 17.5 109
HEWINTA 9519 .0 .0 100 18.9 20.8 91
HICKERSON PARK 9145 .0 .0 100 15.7 13.1 120
HOLE-IN-ROCK 9150 .0 .0 100 14.3 12.8 112
INDIAN CREEK 9425 3.2 9.6 33 29.8 33.1 90
KELLEY R.S. 8180 .0 .0 100 25.8 26.8 96
STEEL CREEK PARK 10200 .0 7.7 0 23.1 23.8 97
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Basin wide percent of average 18 99
UPPER BEAR RIVER
BUG LAKE 7950 .2 .8 25 24.4 25.7 95
HAYDEN FORK 9212 .1 .3 33 29.2 29.1 100
KELLEY R.S. 8180 .0 .0 100 25.8 26.8 96
LILY LAKE 9156 .0 .4 0 23.6 24.7 96
MONTE CRISTO 8960 .1 7.2 1 35.5 34.7 102
SALT RIVER SUMMIT 7760 .0 .0 100 23.5 24.6 96
TRIAL LAKE 9992 .2 9.8 2 32.4 34.1 95
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Basin wide percent of average 3 97
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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.