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 7 , 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 25.8 27.5 94
COTTONWOOD CREEK 7670 .0 2.3 0 40.7 36.3 112
GRAND TARGHEE 9260 36.5 -M * 45.4 -M *
GRANITE CREEK 6770 .3 .0 27.6 25.3 109
GRASSY LAKE 7265 .0 9.5 0 44.5 45.7 97
GROS VENTRE SUMMIT 8750 .1 1.7 6 20.7 18.1 114
GUNSIGHT PASS 9820 3.2 -M * 22.3 -M *
LEWIS LAKE DIVIDE 7850 3.7 13.9 27 43.8 46.0 95
PHILLIPS BENCH 8200 4.8 10.7 45 38.8 37.2 104
SALT RIVER SUMMIT 7760 .0 .0 100 22.9 24.4 94
SNAKE RIVER STATION 6920 .0 .0 100 30.4 28.8 106
SPRING CREEK DIVIDE 9000 8.4 11.5 73 35.2 33.5 105
THUMB DIVIDE 7980 .3 .0 28.9 25.2 115
TOGWOTEE PASS 9580 18.9 19.4 97 39.4 33.2 119
TWO OCEAN PLATEAU 9240 29.4 22.7 130 39.8 36.9 108
WILLOW CREEK 8380 3.4 10.5 32 51.9 43.2 120
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Basin wide percent of average 67 106
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 17.4 17.3 101 29.4 27.5 107
BLACK BEAR 8170 18.5 21.8 85 46.7 51.0 92
CANYON 7870 .2 .5 40 21.6 20.9 103
FISHER CREEK 9100 -M 27.5 * 47.1 47.4 99
MADISON PLATEAU 7750 2.7 5.6 48 33.6 34.8 97
NORTHEAST ENTRANCE 7350 .1 .1 100 19.8 18.1 109
PARKER PEAK 9400 8.6 15.2 57 26.4 23.8 111
SYLVAN LAKE 8420 .8 8.6 9 32.7 29.7 110
THUMB DIVIDE 7980 .3 .0 28.9 25.2 115
TWO OCEAN PLATEAU 9240 29.4 22.7 130 39.8 36.9 108
WHISKEY CREEK 6800 .2 .2 100 27.8 27.8 100
WHITE MILL 8700 12.8 15.4 83 33.2 35.8 93
WOLVERINE 7650 .0 .0 100 18.7 18.7 100
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Basin wide percent of average 84 102
WIND RIVER
BURROUGHS CREEK 8750 .4 1.9 21 24.4 23.0 106
COLD SPRINGS 9630 .0 .8 0 17.1 17.6 97
DEER PARK 9700 1.6 6.7 24 26.6 31.5 84
HOBBS PARK 10100 1.8 7.9 23 23.2 21.5 108
LITTLE WARM 9370 .0 .9 0 21.6 20.5 105
SOUTH PASS 9040 .3 4.2 7 22.9 26.5 86
ST. LAWRENCE ALT 8620 .0 .3 0 15.9 15.7 101
TOGWOTEE PASS 9580 18.9 19.4 97 39.4 33.2 119
TOWNSEND CREEK 8700 .0 1.1 0 19.9 19.3 103
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Basin wide percent of average 53 101
BIGHORN BASIN
BALD MTN. 9380 -M 13.7 * 21.7 25.9 84
BEAR TRAP MEADOW 8200 .1 .0 14.8 14.8 100
BLACKWATER 9780 19.9 22.0 90 32.8 29.6 111
BONE SPRINGS DIV 9350 .1 6.0 2 20.9 23.0 91
EVENING STAR 9200 17.5 23.4 75 42.2 35.1 120
GRAVE SPRINGS 8550 .0 1.0 0 13.4 16.6 81
KIRWIN 9550 .2 4.1 5 22.0 18.1 122
MARQUETTE 8760 .0 2.9 0 15.0 18.7 80
MIDDLE POWDER 7760 -M 1.1 * 15.3 19.6 78
OWL CREEK 8975 .1 .3 33 12.5 11.6 108
POWDER RIVER PASS 9480 .4 1.1 36 21.4 20.2 106
SHELL CREEK 9580 5.6 7.7 73 22.6 21.2 107
SYLVAN LAKE 8420 .8 8.6 9 32.7 29.7 110
SYLVAN ROAD 7120 .5 .0 27.3 23.8 115
TIMBER CREEK 7950 .2 .1 200 14.6 14.9 98
YOUNTS PEAK 8350 1.1 4.1 27 22.7 22.6 100
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Basin wide percent of average 56 102
SHOSHONE RIVER
BLACKWATER 9780 19.9 22.0 90 32.8 29.6 111
EVENING STAR 9200 17.5 23.4 75 42.2 35.1 120
KIRWIN 9550 .2 4.1 5 22.0 18.1 122
MARQUETTE 8760 .0 2.9 0 15.0 18.7 80
SYLVAN LAKE 8420 .8 8.6 9 32.7 29.7 110
SYLVAN ROAD 7120 .5 .0 27.3 23.8 115
YOUNTS PEAK 8350 1.1 4.1 27 22.7 22.6 100
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Basin wide percent of average 61 110
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .1 .0 14.8 14.8 100
BIG GOOSE 7990 .1 .0 18.0 16.7 108
BONE SPRINGS DIV 9350 .1 6.0 2 20.9 23.0 91
BURGESS JUNCTION 7880 .0 1.0 0 17.9 19.0 94
CLOUD PEAK RESERVOIR 9860 2.0 5.2 38 23.3 22.4 104
DOME LAKE 8880 .0 1.9 0 21.9 21.1 104
GRAVE SPRINGS 8550 .0 1.0 0 13.4 16.6 81
HANSEN SAWMILL 8360 .2 .0 14.5 14.7 99
MIDDLE POWDER 7760 -M 1.1 * 15.3 19.6 78
POWDER RIVER PASS 9480 .4 1.1 36 21.4 20.2 106
SUCKER CREEK 8880 .2 2.0 10 24.1 22.1 109
TIE CREEK 6870 .0 .1 0 20.5 17.8 115
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Basin wide percent of average 15 99
BELLE FOURCHE
BLIND PARK 6890 .1 .1 100 20.1 18.6 108
COLE CANYON 5910 .0 .0 100 18.2 13.6 134
NORTH RAPID CREEK 6130 .1 .0 16.4 14.8 111
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Basin wide percent of average 100 116
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 .6 0 34.4 32.5 106
DIVIDE PEAK 8880 .0 2.0 0 36.1 27.9 129
ELK RIVER 8700 .2 .5 40 28.9 26.3 110
JOE WRIGHT 10120 8.1 13.6 60 37.1 35.4 105
NORTH FRENCH CREEK 10130 16.5 19.9 83 41.8 34.8 120
OLD BATTLE 10000 24.3 21.6 112 49.9 44.7 112
SAGE CREEK BASIN 7850 .0 1.2 0 21.0 16.2 130
SOUTH BRUSH CREEK 8440 .0 1.0 0 23.9 24.1 99
TOWER 10500 22.0 37.5 59 52.5 50.5 104
WEBBER SPRINGS 9250 .0 4.0 0 38.0 35.1 108
WILLOW CREEK PASS 9540 .0 1.7 0 18.8 19.3 97
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Basin wide percent of average 69 110
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .1 8.4 1 30.5 31.6 97
CASPER MTN. 7900 .0 2.8 0 21.6 24.5 88
DEADMAN HILL 10220 1.3 8.5 15 24.7 25.1 98
DEER PARK 9700 1.6 6.7 24 26.6 31.5 84
LAPRELE CREEK 8375 .0 .3 0 18.9 20.6 92
RENO HILL 8400 .1 2.3 4 23.7 25.2 94
ROACH 9700 .1 4.1 2 26.9 26.9 100
SAND LAKE 10050 20.5 21.4 96 40.3 34.8 116
SOUTH PASS 9040 .3 4.2 7 22.9 26.5 86
WINDY PEAK 7900 .5 .0 17.4 17.5 99
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Basin wide percent of average 41 96
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 25.5 21.2 120
DIVIDE PEAK 8880 .0 2.0 0 36.1 27.9 129
OLD BATTLE 10000 24.3 21.6 112 49.9 44.7 112
SANDSTONE RS 8150 .3 .0 27.8 25.1 111
WHISKEY PARK 8950 .0 9.3 0 43.6 38.3 114
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Basin wide percent of average 74 116
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .4 .0 19.9 19.0 105
BLIND BULL SUM 8650 12.1 14.9 81 27.8 28.5 98
EAST RIM DIVIDE 7930 .0 .0 100 17.4 16.4 106
ELKHART PARK G.S. 9400 -M 1.2 * 21.0 19.5 108
GROS VENTRE SUMMIT 8750 .1 1.7 6 20.7 18.1 114
GUNSIGHT PASS 9820 3.2 -M * 22.3 -M *
KENDALL R.S. 7740 .1 .0 18.5 19.0 97
LOOMIS PARK 8240 .1 .0 25.2 22.8 111
NEW FORK LAKE 8340 1.5 .0 16.2 16.3 99
SNIDER BASIN 8060 .0 .0 100 20.0 20.7 97
SPRING CREEK DIVIDE 9000 8.4 11.5 73 35.2 33.5 105
TRIPLE PEAK 8500 .2 .8 25 35.9 32.3 111
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Basin wide percent of average 72 105
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 18.4 17.3 106
HEWINTA 9519 .0 .1 0 18.2 20.6 88
HICKERSON PARK 9145 .0 .0 100 14.7 12.9 114
HOLE-IN-ROCK 9150 .0 .0 100 14.2 12.6 113
INDIAN CREEK 9425 2.8 11.6 24 29.0 32.9 88
KELLEY R.S. 8180 .0 .0 100 24.7 26.6 93
STEEL CREEK PARK 10200 .1 9.3 1 22.5 23.6 95
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Basin wide percent of average 14 97
UPPER BEAR RIVER
BUG LAKE 7950 .3 1.3 23 23.8 25.5 93
HAYDEN FORK 9212 .0 .6 0 28.2 28.9 98
KELLEY R.S. 8180 .0 .0 100 24.7 26.6 93
LILY LAKE 9156 .0 .7 0 22.7 24.5 93
MONTE CRISTO 8960 .0 9.2 0 34.3 34.5 99
SALT RIVER SUMMIT 7760 .0 .0 100 22.9 24.4 94
TRIAL LAKE 9992 .2 11.6 2 31.6 33.9 93
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Basin wide percent of average 2 95
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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.