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 MONDAY: JUNE 8 , 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 26.6 27.6 96
COTTONWOOD CREEK 7670 .0 1.7 0 41.3 36.4 113
GRAND TARGHEE 9260 37.0 -M * 46.0 -M *
GRANITE CREEK 6770 .2 .0 28.1 25.4 111
GRASSY LAKE 7265 .0 8.6 0 45.0 45.8 98
GROS VENTRE SUMMIT 8750 .1 1.2 8 21.2 18.2 116
GUNSIGHT PASS 9820 3.9 -M * 23.1 -M *
LEWIS LAKE DIVIDE 7850 3.6 13.1 27 44.0 46.1 95
PHILLIPS BENCH 8200 4.1 10.1 41 39.2 37.2 105
SALT RIVER SUMMIT 7760 .0 .0 100 23.2 24.5 95
SNAKE RIVER STATION 6920 .0 .0 100 30.7 28.9 106
SPRING CREEK DIVIDE 9000 8.7 10.7 81 35.6 33.5 106
THUMB DIVIDE 7980 .1 .0 29.1 25.3 115
TOGWOTEE PASS 9580 19.4 18.9 103 40.1 33.3 120
TWO OCEAN PLATEAU 9240 29.6 22.1 134 40.2 37.0 109
WILLOW CREEK 8380 3.7 9.7 38 52.9 43.3 122
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Basin wide percent of average 72 108
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 17.4 16.6 105 29.8 27.6 108
BLACK BEAR 8170 18.6 21.1 88 47.0 51.1 92
CANYON 7870 .2 .4 50 22.0 21.0 105
FISHER CREEK 9100 -M 26.8 * 47.5 47.5 100
MADISON PLATEAU 7750 2.4 5.0 48 33.9 34.9 97
NORTHEAST ENTRANCE 7350 .0 .0 100 20.0 18.1 110
PARKER PEAK 9400 8.8 14.6 60 26.8 23.9 112
SYLVAN LAKE 8420 .9 8.0 11 32.9 29.8 110
THUMB DIVIDE 7980 .1 .0 29.1 25.3 115
TWO OCEAN PLATEAU 9240 29.6 22.1 134 40.2 37.0 109
WHISKEY CREEK 6800 .1 .1 100 28.0 27.9 100
WHITE MILL 8700 13.0 14.9 87 33.5 35.9 93
WOLVERINE 7650 .0 .0 100 19.1 18.8 102
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Basin wide percent of average 89 103
WIND RIVER
BURROUGHS CREEK 8750 -M 1.6 * -M 23.1 *
COLD SPRINGS 9630 .2 .6 33 17.8 17.7 101
DEER PARK 9700 2.6 6.5 40 27.8 31.6 88
HOBBS PARK 10100 1.9 7.5 25 23.4 21.6 108
LITTLE WARM 9370 .1 .7 14 22.3 20.5 109
SOUTH PASS 9040 .9 3.7 24 23.7 26.5 89
ST. LAWRENCE ALT 8620 .1 .2 50 16.3 15.8 103
TOGWOTEE PASS 9580 19.4 18.9 103 40.1 33.3 120
TOWNSEND CREEK 8700 .0 1.0 0 20.1 19.4 104
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Basin wide percent of average 64 103
BIGHORN BASIN
BALD MTN. 9380 -M 13.2 * 22.8 26.0 88
BEAR TRAP MEADOW 8200 .0 .1 0 15.1 14.9 101
BLACKWATER 9780 20.1 21.2 95 33.3 29.8 112
BONE SPRINGS DIV 9350 1.0 5.6 18 21.7 23.1 94
EVENING STAR 9200 17.7 22.5 79 42.8 35.2 122
GRAVE SPRINGS 8550 .0 .8 0 13.6 16.7 81
KIRWIN 9550 1.0 3.8 26 23.0 18.2 126
MARQUETTE 8760 .2 2.6 8 15.5 18.9 82
MIDDLE POWDER 7760 -M .9 * 15.6 19.7 79
OWL CREEK 8975 .9 .2 450 13.3 11.7 114
POWDER RIVER PASS 9480 .5 1.0 50 21.6 20.3 106
SHELL CREEK 9580 6.4 7.2 89 23.5 21.3 110
SYLVAN LAKE 8420 .9 8.0 11 32.9 29.8 110
SYLVAN ROAD 7120 .3 .0 27.7 23.9 116
TIMBER CREEK 7950 .5 .0 15.2 15.0 101
YOUNTS PEAK 8350 1.8 3.6 50 23.5 22.7 104
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Basin wide percent of average 66 104
SHOSHONE RIVER
BLACKWATER 9780 20.1 21.2 95 33.3 29.8 112
EVENING STAR 9200 17.7 22.5 79 42.8 35.2 122
KIRWIN 9550 1.0 3.8 26 23.0 18.2 126
MARQUETTE 8760 .2 2.6 8 15.5 18.9 82
SYLVAN LAKE 8420 .9 8.0 11 32.9 29.8 110
SYLVAN ROAD 7120 .3 .0 27.7 23.9 116
YOUNTS PEAK 8350 1.8 3.6 50 23.5 22.7 104
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Basin wide percent of average 68 111
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .1 0 15.1 14.9 101
BIG GOOSE 7990 .3 .0 18.4 16.8 110
BONE SPRINGS DIV 9350 1.0 5.6 18 21.7 23.1 94
BURGESS JUNCTION 7880 .5 .8 62 18.7 19.1 98
CLOUD PEAK RESERVOIR 9860 2.7 4.8 56 23.8 22.5 106
DOME LAKE 8880 .3 1.7 18 22.7 21.2 107
GRAVE SPRINGS 8550 .0 .8 0 13.6 16.7 81
HANSEN SAWMILL 8360 .4 .0 15.0 14.9 101
MIDDLE POWDER 7760 -M .9 * 15.6 19.7 79
POWDER RIVER PASS 9480 .5 1.0 50 21.6 20.3 106
SUCKER CREEK 8880 .7 1.7 41 24.9 22.2 112
TIE CREEK 6870 .5 .0 21.1 18.0 117
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Basin wide percent of average 35 101
BELLE FOURCHE
BLIND PARK 6890 .1 .0 20.4 18.7 109
COLE CANYON 5910 .0 .0 100 18.4 13.8 133
NORTH RAPID CREEK 6130 .0 .0 100 16.8 14.9 113
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Basin wide percent of average * 117
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 .5 0 34.6 32.6 106
DIVIDE PEAK 8880 .0 1.7 0 36.2 27.9 130
ELK RIVER 8700 .2 .4 50 28.7 26.4 109
JOE WRIGHT 10120 7.6 12.9 59 37.3 35.5 105
NORTH FRENCH CREEK 10130 16.6 19.1 87 42.2 34.9 121
OLD BATTLE 10000 23.8 20.7 115 50.1 44.8 112
SAGE CREEK BASIN 7850 .0 1.0 0 21.2 16.2 131
SOUTH BRUSH CREEK 8440 .0 .9 0 24.1 24.1 100
TOWER 10500 22.1 36.4 61 52.6 50.6 104
WEBBER SPRINGS 9250 .0 3.6 0 38.3 35.1 109
WILLOW CREEK PASS 9540 .0 1.5 0 19.1 19.3 99
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Basin wide percent of average 71 111
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .2 7.8 3 30.3 31.7 96
CASPER MTN. 7900 .0 2.6 0 21.8 24.6 89
DEADMAN HILL 10220 1.6 7.9 20 25.0 25.2 99
DEER PARK 9700 2.6 6.5 40 27.8 31.6 88
LAPRELE CREEK 8375 .0 .2 0 18.8 20.7 91
RENO HILL 8400 .0 2.1 0 23.9 25.3 94
ROACH 9700 .3 3.7 8 27.3 27.0 101
SAND LAKE 10050 19.7 20.5 96 40.6 34.9 116
SOUTH PASS 9040 .9 3.7 24 23.7 26.5 89
WINDY PEAK 7900 .5 .0 17.3 17.6 98
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Basin wide percent of average 46 97
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 25.6 21.3 120
DIVIDE PEAK 8880 .0 1.7 0 36.2 27.9 130
OLD BATTLE 10000 23.8 20.7 115 50.1 44.8 112
SANDSTONE RS 8150 .2 .0 28.0 25.2 111
WHISKEY PARK 8950 .0 8.5 0 44.1 38.4 115
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Basin wide percent of average 77 117
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .9 .0 20.7 19.1 108
BLIND BULL SUM 8650 12.3 14.3 86 28.3 28.6 99
EAST RIM DIVIDE 7930 .0 .0 100 17.8 16.5 108
ELKHART PARK G.S. 9400 .0 .8 0 21.7 19.5 111
GROS VENTRE SUMMIT 8750 .1 1.2 8 21.2 18.2 116
GUNSIGHT PASS 9820 3.9 -M * 23.1 -M *
KENDALL R.S. 7740 .1 .0 19.3 19.0 102
LOOMIS PARK 8240 .1 .0 25.9 22.9 113
NEW FORK LAKE 8340 1.5 .0 17.2 16.3 106
SNIDER BASIN 8060 .0 .0 100 20.2 20.8 97
SPRING CREEK DIVIDE 9000 8.7 10.7 81 35.6 33.5 106
TRIPLE PEAK 8500 .2 .0 36.4 32.4 112
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Basin wide percent of average 78 107
LOWER GREEN RIVER
HAMS FORK 7840 .3 .0 18.7 17.4 107
HEWINTA 9519 .0 .1 0 18.4 20.7 89
HICKERSON PARK 9145 .0 .0 100 14.8 13.0 114
HOLE-IN-ROCK 9150 .0 .0 100 14.2 12.6 113
INDIAN CREEK 9425 3.6 10.9 33 29.6 32.9 90
KELLEY R.S. 8180 .0 .0 100 25.5 26.7 96
STEEL CREEK PARK 10200 .0 8.7 0 22.7 23.7 96
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Basin wide percent of average 18 98
UPPER BEAR RIVER
BUG LAKE 7950 .2 1.1 18 24.2 25.6 95
HAYDEN FORK 9212 .1 .5 20 28.5 29.0 98
KELLEY R.S. 8180 .0 .0 100 25.5 26.7 96
LILY LAKE 9156 .0 .6 0 22.8 24.6 93
MONTE CRISTO 8960 .4 8.5 5 35.2 34.6 102
SALT RIVER SUMMIT 7760 .0 .0 100 23.2 24.5 95
TRIAL LAKE 9992 .3 11.0 3 32.0 33.9 94
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Basin wide percent of average 5 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.