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 TUESDAY: JUNE 9 , 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 26.8 27.7 97
COTTONWOOD CREEK 7670 .0 1.1 0 41.7 36.4 115
GRAND TARGHEE 9260 37.2 -M * 46.2 -M *
GRANITE CREEK 6770 .2 .0 28.7 25.4 113
GRASSY LAKE 7265 .0 7.7 0 45.4 46.0 99
GROS VENTRE SUMMIT 8750 .1 .8 12 21.8 18.2 120
GUNSIGHT PASS 9820 4.3 -M * 23.6 -M *
LEWIS LAKE DIVIDE 7850 3.1 12.3 25 44.5 46.2 96
PHILLIPS BENCH 8200 3.9 9.4 41 39.7 37.3 106
SALT RIVER SUMMIT 7760 .0 .0 100 23.3 24.5 95
SNAKE RIVER STATION 6920 .0 .0 100 31.2 29.0 108
SPRING CREEK DIVIDE 9000 8.7 10.0 87 35.9 33.6 107
THUMB DIVIDE 7980 .8 .0 30.0 25.4 118
TOGWOTEE PASS 9580 19.7 18.3 108 40.4 33.4 121
TWO OCEAN PLATEAU 9240 30.1 21.6 139 40.8 37.1 110
WILLOW CREEK 8380 3.3 8.9 37 53.3 43.4 123
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Basin wide percent of average 76 109
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 17.8 15.9 112 30.3 27.7 109
BLACK BEAR 8170 19.3 20.2 96 47.9 51.2 94
CANYON 7870 .0 .3 0 22.4 21.1 106
FISHER CREEK 9100 24.2 26.0 93 47.9 47.7 100
MADISON PLATEAU 7750 2.1 4.4 48 34.2 35.0 98
NORTHEAST ENTRANCE 7350 .1 .0 20.3 18.2 112
PARKER PEAK 9400 9.3 14.0 66 27.3 24.0 114
SYLVAN LAKE 8420 1.3 7.6 17 33.6 29.9 112
THUMB DIVIDE 7980 .8 .0 30.0 25.4 118
TWO OCEAN PLATEAU 9240 30.1 21.6 139 40.8 37.1 110
WHISKEY CREEK 6800 .2 .1 200 28.2 28.0 101
WHITE MILL 8700 13.3 14.4 92 33.9 36.0 94
WOLVERINE 7650 .0 .0 100 19.5 18.9 103
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Basin wide percent of average 94 104
WIND RIVER
BURROUGHS CREEK 8750 1.7 1.4 121 26.1 23.2 112
COLD SPRINGS 9630 .0 .6 0 18.0 17.8 101
DEER PARK 9700 2.5 6.5 38 27.9 31.7 88
HOBBS PARK 10100 .9 7.3 12 23.5 21.7 108
LITTLE WARM 9370 .0 .6 0 22.7 20.6 110
SOUTH PASS 9040 .2 3.6 6 23.7 26.6 89
ST. LAWRENCE ALT 8620 .0 .2 0 16.3 15.9 103
TOGWOTEE PASS 9580 19.7 18.3 108 40.4 33.4 121
TOWNSEND CREEK 8700 .0 1.0 0 20.6 19.5 106
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Basin wide percent of average 63 104
BIGHORN BASIN
BALD MTN. 9380 8.5 12.8 66 23.0 26.1 88
BEAR TRAP MEADOW 8200 .0 .1 0 15.3 15.0 102
BLACKWATER 9780 20.7 20.6 100 34.0 29.9 114
BONE SPRINGS DIV 9350 .9 5.2 17 21.9 23.2 94
EVENING STAR 9200 17.9 21.7 82 43.0 35.4 121
GRAVE SPRINGS 8550 .0 .9 0 13.6 16.8 81
KIRWIN 9550 .9 3.5 26 23.2 18.3 127
MARQUETTE 8760 .0 2.4 0 15.6 19.0 82
MIDDLE POWDER 7760 -M .8 * 15.6 19.8 79
OWL CREEK 8975 .8 .2 400 13.3 11.8 113
POWDER RIVER PASS 9480 .6 .9 67 21.9 20.4 107
SHELL CREEK 9580 6.4 6.8 94 23.5 21.4 110
SYLVAN LAKE 8420 1.3 7.6 17 33.6 29.9 112
SYLVAN ROAD 7120 .4 .0 28.3 24.0 118
TIMBER CREEK 7950 .2 .1 200 15.2 15.1 101
YOUNTS PEAK 8350 1.6 3.3 48 23.7 22.8 104
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Basin wide percent of average 69 105
SHOSHONE RIVER
BLACKWATER 9780 20.7 20.6 100 34.0 29.9 114
EVENING STAR 9200 17.9 21.7 82 43.0 35.4 121
KIRWIN 9550 .9 3.5 26 23.2 18.3 127
MARQUETTE 8760 .0 2.4 0 15.6 19.0 82
SYLVAN LAKE 8420 1.3 7.6 17 33.6 29.9 112
SYLVAN ROAD 7120 .4 .0 28.3 24.0 118
YOUNTS PEAK 8350 1.6 3.3 48 23.7 22.8 104
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Basin wide percent of average 72 112
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .1 0 15.3 15.0 102
BIG GOOSE 7990 .0 .0 100 18.6 16.9 110
BONE SPRINGS DIV 9350 .9 5.2 17 21.9 23.2 94
BURGESS JUNCTION 7880 .2 .7 29 18.7 19.2 97
CLOUD PEAK RESERVOIR 9860 3.0 4.5 67 24.4 22.6 108
DOME LAKE 8880 .2 1.7 12 22.8 21.4 107
GRAVE SPRINGS 8550 .0 .9 0 13.6 16.8 81
HANSEN SAWMILL 8360 .2 .0 15.2 15.0 101
MIDDLE POWDER 7760 -M .8 * 15.6 19.8 79
POWDER RIVER PASS 9480 .6 .9 67 21.9 20.4 107
SUCKER CREEK 8880 .7 1.6 44 25.0 22.4 112
TIE CREEK 6870 .3 .1 300 21.3 18.1 118
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Basin wide percent of average 38 102
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100 20.5 18.8 109
COLE CANYON 5910 .0 .0 100 18.5 13.9 133
NORTH RAPID CREEK 6130 .1 .0 16.9 15.1 112
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Basin wide percent of average * 117
UPPER N. PLATTE RIVER
COLUMBINE 9160 .1 .4 25 34.7 32.7 106
DIVIDE PEAK 8880 .1 1.5 7 37.0 28.0 132
ELK RIVER 8700 .2 .3 67 29.0 26.5 109
JOE WRIGHT 10120 7.1 12.2 58 37.6 35.6 106
NORTH FRENCH CREEK 10130 -M 18.3 * -M 35.0 *
OLD BATTLE 10000 23.9 19.8 121 50.7 44.9 113
SAGE CREEK BASIN 7850 .1 .9 11 21.7 16.2 134
SOUTH BRUSH CREEK 8440 .0 .8 0 24.4 24.2 101
TOWER 10500 21.8 35.2 62 53.1 50.7 105
WEBBER SPRINGS 9250 .0 3.2 0 38.7 35.2 110
WILLOW CREEK PASS 9540 .0 1.3 0 19.2 19.4 99
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Basin wide percent of average 71 110
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .2 7.2 3 30.6 31.7 97
CASPER MTN. 7900 .0 2.4 0 21.9 24.7 89
DEADMAN HILL 10220 1.3 7.4 18 25.3 25.2 100
DEER PARK 9700 2.5 6.5 38 27.9 31.7 88
LAPRELE CREEK 8375 .0 .2 0 19.0 20.8 91
RENO HILL 8400 .0 1.9 0 24.0 25.4 94
ROACH 9700 .2 3.4 6 27.5 27.0 102
SAND LAKE 10050 19.5 19.6 99 41.1 35.0 117
SOUTH PASS 9040 .2 3.6 6 23.7 26.6 89
WINDY PEAK 7900 .6 .0 17.4 17.7 98
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Basin wide percent of average 46 97
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 25.9 21.3 122
DIVIDE PEAK 8880 .1 1.5 7 37.0 28.0 132
OLD BATTLE 10000 23.9 19.8 121 50.7 44.9 113
SANDSTONE RS 8150 .2 .0 28.4 25.3 112
WHISKEY PARK 8950 -M 7.7 * -M 38.5 *
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Basin wide percent of average 113 119
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .1 .0 20.7 19.1 108
BLIND BULL SUM 8650 12.3 13.7 90 28.5 28.6 100
EAST RIM DIVIDE 7930 .0 .0 100 18.1 16.5 110
ELKHART PARK G.S. 9400 .0 .4 0 21.9 19.6 112
GROS VENTRE SUMMIT 8750 .1 .8 12 21.8 18.2 120
GUNSIGHT PASS 9820 4.3 -M * 23.6 -M *
KENDALL R.S. 7740 .1 .0 19.5 19.1 102
LOOMIS PARK 8240 .1 .0 26.3 22.9 115
NEW FORK LAKE 8340 -M .0 * 17.0 16.4 104
SNIDER BASIN 8060 .0 .0 100 20.3 20.8 98
SPRING CREEK DIVIDE 9000 8.7 10.0 87 35.9 33.6 107
TRIPLE PEAK 8500 .1 .0 36.6 32.5 113
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Basin wide percent of average 85 108
LOWER GREEN RIVER
HAMS FORK 7840 .2 .0 19.1 17.4 110
HEWINTA 9519 .0 .0 100 18.5 20.7 89
HICKERSON PARK 9145 .0 .0 100 15.1 13.0 116
HOLE-IN-ROCK 9150 .0 .0 100 14.2 12.7 112
INDIAN CREEK 9425 3.7 10.3 36 29.9 33.0 91
KELLEY R.S. 8180 .0 .0 100 25.7 26.7 96
STEEL CREEK PARK 10200 .0 8.2 0 22.8 23.7 96
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Basin wide percent of average 20 99
UPPER BEAR RIVER
BUG LAKE 7950 .2 .9 22 24.3 25.6 95
HAYDEN FORK 9212 .1 .4 25 28.5 29.1 98
KELLEY R.S. 8180 .0 .0 100 25.7 26.7 96
LILY LAKE 9156 .0 .5 0 22.8 24.7 92
MONTE CRISTO 8960 .1 7.9 1 35.3 34.6 102
SALT RIVER SUMMIT 7760 .0 .0 100 23.3 24.5 95
TRIAL LAKE 9992 .3 10.4 3 32.2 34.0 95
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Basin wide percent of average 3 96
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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.