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 SUNDAY: JUNE 14 , 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 28.2 28.1 100
COTTONWOOD CREEK 7670 .0 .0 100 44.0 36.8 120
GRAND TARGHEE 9260 35.6 -M * 47.4 -M *
GRANITE CREEK 6770 .2 .0 29.2 25.8 113
GRASSY LAKE 7265 .0 2.9 0 46.7 46.5 100
GROS VENTRE SUMMIT 8750 .2 .0 22.7 18.6 122
GUNSIGHT PASS 9820 4.1 -M * 25.1 -M *
LEWIS LAKE DIVIDE 7850 .5 8.0 6 45.4 46.7 97
PHILLIPS BENCH 8200 .2 6.1 3 40.4 37.8 107
SALT RIVER SUMMIT 7760 .0 .0 100 25.1 24.8 101
SNAKE RIVER STATION 6920 .0 .0 100 32.0 29.4 109
SPRING CREEK DIVIDE 9000 6.1 6.2 98 37.3 33.9 110
THUMB DIVIDE 7980 .1 .0 30.7 25.7 119
TOGWOTEE PASS 9580 19.0 15.3 124 41.6 33.8 123
TWO OCEAN PLATEAU 9240 29.9 18.6 161 42.0 37.6 112
WILLOW CREEK 8380 .0 4.9 0 54.8 43.8 125
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Basin wide percent of average 90 111
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 17.0 12.8 133 30.6 28.2 109
BLACK BEAR 8170 14.5 15.9 91 48.3 51.8 93
CANYON 7870 .0 .2 0 22.6 21.5 105
FISHER CREEK 9100 -M 22.1 * 48.2 48.4 100
MADISON PLATEAU 7750 .1 1.9 5 34.5 35.5 97
NORTHEAST ENTRANCE 7350 .1 .0 20.5 18.7 110
PARKER PEAK 9400 6.9 11.6 59 27.6 24.5 113
SYLVAN LAKE 8420 .1 5.4 2 34.2 30.5 112
THUMB DIVIDE 7980 .1 .0 30.7 25.7 119
TWO OCEAN PLATEAU 9240 29.9 18.6 161 42.0 37.6 112
WHISKEY CREEK 6800 .2 .0 28.7 28.5 101
WHITE MILL 8700 11.0 11.3 97 34.4 36.6 94
WOLVERINE 7650 .0 .0 100 20.0 19.3 104
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Basin wide percent of average 102 104
WIND RIVER
BURROUGHS CREEK 8750 .2 .7 29 27.8 23.6 118
COLD SPRINGS 9630 .1 .3 33 19.3 18.2 106
DEER PARK 9700 1.8 5.0 36 30.0 32.2 93
HOBBS PARK 10100 .3 5.1 6 25.5 22.2 115
LITTLE WARM 9370 .1 .3 33 24.0 21.0 114
SOUTH PASS 9040 .2 2.9 7 26.0 27.0 96
ST. LAWRENCE ALT 8620 .1 .0 18.2 16.4 111
TOGWOTEE PASS 9580 19.0 15.3 124 41.6 33.8 123
TOWNSEND CREEK 8700 .0 .7 0 22.3 19.9 112
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Basin wide percent of average 72 110
BIGHORN BASIN
BALD MTN. 9380 7.2 9.4 77 23.7 26.7 89
BEAR TRAP MEADOW 8200 .1 .0 15.9 15.5 103
BLACKWATER 9780 21.7 17.8 122 35.2 30.5 115
BONE SPRINGS DIV 9350 .0 3.4 0 23.1 23.9 97
EVENING STAR 9200 15.5 17.9 87 43.5 36.0 121
GRAVE SPRINGS 8550 .0 .7 0 14.4 17.2 84
KIRWIN 9550 .1 1.9 5 24.8 18.9 131
MARQUETTE 8760 .1 1.7 6 16.2 19.6 83
MIDDLE POWDER 7760 .0 .4 0 15.9 20.3 78
OWL CREEK 8975 .1 .1 100 14.8 12.3 120
POWDER RIVER PASS 9480 .2 .4 50 23.4 21.0 111
SHELL CREEK 9580 5.6 4.2 133 24.1 22.1 109
SYLVAN LAKE 8420 .1 5.4 2 34.2 30.5 112
SYLVAN ROAD 7120 .2 .0 29.0 24.4 119
TIMBER CREEK 7950 .1 .1 100 15.8 15.6 101
YOUNTS PEAK 8350 .1 1.7 6 24.7 23.2 106
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Basin wide percent of average 78 106
SHOSHONE RIVER
BLACKWATER 9780 21.7 17.8 122 35.2 30.5 115
EVENING STAR 9200 15.5 17.9 87 43.5 36.0 121
KIRWIN 9550 .1 1.9 5 24.8 18.9 131
MARQUETTE 8760 .1 1.7 6 16.2 19.6 83
SYLVAN LAKE 8420 .1 5.4 2 34.2 30.5 112
SYLVAN ROAD 7120 .2 .0 29.0 24.4 119
YOUNTS PEAK 8350 .1 1.7 6 24.7 23.2 106
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Basin wide percent of average 81 113
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .1 .0 15.9 15.5 103
BIG GOOSE 7990 .1 .0 19.2 17.2 112
BONE SPRINGS DIV 9350 .0 3.4 0 23.1 23.9 97
BURGESS JUNCTION 7880 .0 .4 0 19.0 19.8 96
CLOUD PEAK RESERVOIR 9860 2.5 2.8 89 25.4 23.3 109
DOME LAKE 8880 .0 1.2 0 23.5 21.9 107
GRAVE SPRINGS 8550 .0 .7 0 14.4 17.2 84
HANSEN SAWMILL 8360 .1 .0 16.1 15.6 103
MIDDLE POWDER 7760 .0 .4 0 15.9 20.3 78
POWDER RIVER PASS 9480 .2 .4 50 23.4 21.0 111
SUCKER CREEK 8880 .1 .9 11 25.7 22.9 112
TIE CREEK 6870 .0 .0 100 21.5 18.6 116
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Basin wide percent of average 27 102
BELLE FOURCHE
BLIND PARK 6890 .3 .0 21.9 19.4 113
COLE CANYON 5910 .0 .0 100 19.4 14.6 133
NORTH RAPID CREEK 6130 .1 .0 18.0 15.8 114
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Basin wide percent of average * 119
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 .0 100 35.8 32.9 109
DIVIDE PEAK 8880 .0 .6 0 37.5 28.3 133
ELK RIVER 8700 .1 .0 30.2 26.8 113
JOE WRIGHT 10120 3.8 8.7 44 39.0 36.1 108
NORTH FRENCH CREEK 10130 -M 14.2 * -M 35.5 *
OLD BATTLE 10000 20.2 15.3 132 52.1 45.3 115
SAGE CREEK BASIN 7850 .0 .3 0 22.6 16.4 138
SOUTH BRUSH CREEK 8440 .0 .3 0 25.4 24.6 103
TOWER 10500 19.2 29.2 66 54.8 51.2 107
WEBBER SPRINGS 9250 .0 1.7 0 39.8 35.6 112
WILLOW CREEK PASS 9540 .0 .6 0 20.1 19.9 101
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Basin wide percent of average 76 113
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .1 4.7 2 32.0 32.1 100
CASPER MTN. 7900 .0 1.5 0 23.1 25.2 92
DEADMAN HILL 10220 .0 4.8 0 25.8 25.6 101
DEER PARK 9700 1.8 5.0 36 30.0 32.2 93
LAPRELE CREEK 8375 .0 .0 100 20.3 21.2 96
RENO HILL 8400 .0 1.1 0 25.7 25.8 100
ROACH 9700 .1 2.0 5 28.3 27.4 103
SAND LAKE 10050 17.4 15.0 116 42.3 35.5 119
SOUTH PASS 9040 .2 2.9 7 26.0 27.0 96
WINDY PEAK 7900 -M .0 * 18.6 18.1 103
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Basin wide percent of average 53 101
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 26.4 21.6 122
DIVIDE PEAK 8880 .0 .6 0 37.5 28.3 133
OLD BATTLE 10000 20.2 15.3 132 52.1 45.3 115
SANDSTONE RS 8150 -M .0 * 29.1 25.6 114
WHISKEY PARK 8950 .0 4.4 0 45.3 38.9 116
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Basin wide percent of average 100 119
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 100 22.9 19.5 117
BLIND BULL SUM 8650 8.5 10.5 81 29.9 29.0 103
EAST RIM DIVIDE 7930 .0 .0 100 19.3 16.8 115
ELKHART PARK G.S. 9400 .5 .0 23.8 20.0 119
GROS VENTRE SUMMIT 8750 .2 .0 22.7 18.6 122
GUNSIGHT PASS 9820 4.1 -M * 25.1 -M *
KENDALL R.S. 7740 .1 .0 20.8 19.4 107
LOOMIS PARK 8240 .1 .0 27.8 23.2 120
NEW FORK LAKE 8340 1.6 .0 18.1 16.8 108
SNIDER BASIN 8060 .0 .0 100 21.4 21.0 102
SPRING CREEK DIVIDE 9000 6.1 6.2 98 37.3 33.9 110
TRIPLE PEAK 8500 .1 .0 37.9 32.9 115
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Basin wide percent of average 87* 112
LOWER GREEN RIVER
HAMS FORK 7840 .3 .0 20.6 17.7 116
HEWINTA 9519 .0 .0 100 19.2 21.0 91
HICKERSON PARK 9145 .0 .0 100 16.5 13.3 124
HOLE-IN-ROCK 9150 .0 .0 100 14.5 13.0 112
INDIAN CREEK 9425 1.3 6.9 19 31.4 33.3 94
KELLEY R.S. 8180 .0 .0 100 27.2 27.0 101
STEEL CREEK PARK 10200 .0 5.8 0 23.4 24.1 97
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Basin wide percent of average 10 102
UPPER BEAR RIVER
BUG LAKE 7950 .2 .1 200 25.2 25.9 97
HAYDEN FORK 9212 .1 .1 100 29.8 29.4 101
KELLEY R.S. 8180 .0 .0 100 27.2 27.0 101
LILY LAKE 9156 .0 .0 100 24.1 25.0 96
MONTE CRISTO 8960 .1 4.9 2 36.8 35.0 105
SALT RIVER SUMMIT 7760 .0 .0 100 25.1 24.8 101
TRIAL LAKE 9992 .2 7.5 3 33.1 34.4 96
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Basin wide percent of average 5 100
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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.