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 THURSDAY: JUNE 4 , 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 25.0 27.3 92
COTTONWOOD CREEK 7670 .0 3.9 0 39.8 36.0 111
GRAND TARGHEE 9260 36.9 -M * 44.0 -M *
GRANITE CREEK 6770 .2 .0 27.7 25.1 110
GRASSY LAKE 7265 .0 12.3 0 43.1 45.3 95
GROS VENTRE SUMMIT 8750 .0 2.9 0 20.4 17.9 114
GUNSIGHT PASS 9820 5.4 -M * 22.3 -M *
LEWIS LAKE DIVIDE 7850 7.4 16.4 45 42.8 45.6 94
PHILLIPS BENCH 8200 7.5 12.7 59 37.9 36.8 103
SALT RIVER SUMMIT 7760 .0 .0 100 22.2 24.2 92
SNAKE RIVER STATION 6920 .0 .0 100 29.3 28.6 102
SPRING CREEK DIVIDE 9000 10.0 13.6 74 34.4 33.3 103
THUMB DIVIDE 7980 .2 1.0 20 28.1 25.0 112
TOGWOTEE PASS 9580 19.6 21.0 93 37.9 32.9 115
TWO OCEAN PLATEAU 9240 29.9 24.2 124 38.2 36.5 105
WILLOW CREEK 8380 6.0 12.8 47 50.8 42.8 119
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Basin wide percent of average 67 104
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 17.9 19.0 94 28.1 27.2 103
BLACK BEAR 8170 21.1 24.4 86 46.2 50.6 91
CANYON 7870 .0 .8 0 20.6 20.7 100
FISHER CREEK 9100 24.2 29.1 83 46.2 47.0 98
MADISON PLATEAU 7750 5.3 7.5 71 33.0 34.5 96
NORTHEAST ENTRANCE 7350 .0 .3 0 18.8 17.8 106
PARKER PEAK 9400 9.5 17.3 55 25.2 23.4 108
SYLVAN LAKE 8420 2.3 10.2 23 30.9 29.3 105
THUMB DIVIDE 7980 .2 1.0 20 28.1 25.0 112
TWO OCEAN PLATEAU 9240 29.9 24.2 124 38.2 36.5 105
WHISKEY CREEK 6800 .0 .6 0 27.6 27.5 100
WHITE MILL 8700 14.4 17.0 85 32.4 35.4 92
WOLVERINE 7650 .0 .0 100 17.9 18.5 97
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Basin wide percent of average 82 100
WIND RIVER
BURROUGHS CREEK 8750 1.4 2.8 50 23.9 22.8 105
COLD SPRINGS 9630 .0 .9 0 17.0 17.3 98
DEER PARK 9700 2.6 7.0 37 25.8 31.2 83
HOBBS PARK 10100 4.4 9.4 47 22.9 21.2 108
LITTLE WARM 9370 .0 1.4 0 21.3 20.2 105
SOUTH PASS 9040 .0 5.6 0 22.4 26.2 85
ST. LAWRENCE ALT 8620 .0 .5 0 15.9 15.4 103
TOGWOTEE PASS 9580 19.6 21.0 93 37.9 32.9 115
TOWNSEND CREEK 8700 .0 1.5 0 20.2 19.0 106
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Basin wide percent of average 56 101
BIGHORN BASIN
BALD MTN. 9380 10.0 15.6 64 21.0 25.5 82
BEAR TRAP MEADOW 8200 .0 .0 100 14.5 14.4 101
BLACKWATER 9780 20.5 23.7 86 31.8 29.2 109
BONE SPRINGS DIV 9350 .9 7.3 12 20.0 22.6 88
EVENING STAR 9200 18.5 25.5 73 40.9 34.7 118
GRAVE SPRINGS 8550 .0 1.3 0 13.4 16.3 82
KIRWIN 9550 .0 5.0 0 21.4 17.8 120
MARQUETTE 8760 .0 3.7 0 14.6 18.3 80
MIDDLE POWDER 7760 .0 1.9 0 15.0 19.3 78
OWL CREEK 8975 .0 .4 0 12.2 11.3 108
POWDER RIVER PASS 9480 .0 1.7 0 20.7 19.8 105
SHELL CREEK 9580 6.4 9.3 69 21.1 20.8 101
SYLVAN LAKE 8420 2.3 10.2 23 30.9 29.3 105
SYLVAN ROAD 7120 .0 .0 100 26.0 23.5 111
TIMBER CREEK 7950 .0 .4 0 14.3 14.6 98
YOUNTS PEAK 8350 2.4 5.8 41 22.0 22.3 99
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Basin wide percent of average 55 100
SHOSHONE RIVER
BLACKWATER 9780 20.5 23.7 86 31.8 29.2 109
EVENING STAR 9200 18.5 25.5 73 40.9 34.7 118
KIRWIN 9550 .0 5.0 0 21.4 17.8 120
MARQUETTE 8760 .0 3.7 0 14.6 18.3 80
SYLVAN LAKE 8420 2.3 10.2 23 30.9 29.3 105
SYLVAN ROAD 7120 .0 .0 100 26.0 23.5 111
YOUNTS PEAK 8350 2.4 5.8 41 22.0 22.3 99
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Basin wide percent of average 59 107
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100 14.5 14.4 101
BIG GOOSE 7990 .0 1.4 0 17.5 16.5 106
BONE SPRINGS DIV 9350 .9 7.3 12 20.0 22.6 88
BURGESS JUNCTION 7880 .0 1.9 0 17.3 18.7 93
CLOUD PEAK RESERVOIR 9860 4.6 6.6 70 22.4 22.0 102
DOME LAKE 8880 .0 2.7 0 20.9 20.8 100
GRAVE SPRINGS 8550 .0 1.3 0 13.4 16.3 82
HANSEN SAWMILL 8360 .0 .1 0 14.0 14.4 97
MIDDLE POWDER 7760 .0 1.9 0 15.0 19.3 78
POWDER RIVER PASS 9480 .0 1.7 0 20.7 19.8 105
SUCKER CREEK 8880 .0 3.0 0 23.3 21.8 107
TIE CREEK 6870 .0 .0 100 19.5 17.5 111
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Basin wide percent of average 20 98
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100 19.7 18.2 108
COLE CANYON 5910 .0 .0 100 17.9 13.2 136
NORTH RAPID CREEK 6130 .0 .0 100 16.1 14.3 113
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Basin wide percent of average * 118
UPPER N. PLATTE RIVER
COLUMBINE 9160 .1 1.3 8 34.4 32.4 106
DIVIDE PEAK 8880 .1 2.9 3 36.2 27.6 131
ELK RIVER 8700 .2 1.0 20 28.6 26.1 110
JOE WRIGHT 10120 11.4 15.7 73 37.2 35.1 106
NORTH FRENCH CREEK 10130 19.9 22.3 89 41.6 34.5 121
OLD BATTLE 10000 26.3 24.0 110 49.7 44.4 112
SAGE CREEK BASIN 7850 .0 1.7 0 21.0 16.0 131
SOUTH BRUSH CREEK 8440 .0 1.4 0 23.8 23.8 100
TOWER 10500 25.7 40.6 63 52.3 50.2 104
WEBBER SPRINGS 9250 .0 5.4 0 37.8 34.8 109
WILLOW CREEK PASS 9540 .0 2.5 0 19.0 19.0 100
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Basin wide percent of average 70 111
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.7 10.3 17 30.0 31.3 96
CASPER MTN. 7900 .0 3.6 0 21.7 24.2 90
DEADMAN HILL 10220 4.9 10.1 49 24.8 24.8 100
DEER PARK 9700 2.6 7.0 37 25.8 31.2 83
LAPRELE CREEK 8375 .0 .6 0 18.8 20.3 93
RENO HILL 8400 .0 3.0 0 23.7 24.9 95
ROACH 9700 .1 5.2 2 26.8 26.6 101
SAND LAKE 10050 24.1 24.1 100 40.1 34.5 116
SOUTH PASS 9040 .0 5.6 0 22.4 26.2 85
WINDY PEAK 7900 .5 .0 17.4 17.3 101
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Basin wide percent of average 48 96
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 25.4 21.1 120
DIVIDE PEAK 8880 .1 2.9 3 36.2 27.6 131
OLD BATTLE 10000 26.3 24.0 110 49.7 44.4 112
SANDSTONE RS 8150 .1 .0 27.8 24.9 112
WHISKEY PARK 8950 .5 11.8 4 43.5 38.0 114
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Basin wide percent of average 70 117
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .5 0 19.0 18.8 101
BLIND BULL SUM 8650 14.4 16.7 86 27.2 28.3 96
EAST RIM DIVIDE 7930 .0 .5 0 17.3 16.2 107
ELKHART PARK G.S. 9400 -M 2.5 * 20.7 19.2 108
GROS VENTRE SUMMIT 8750 .0 2.9 0 20.4 17.9 114
GUNSIGHT PASS 9820 5.4 -M * 22.3 -M *
KENDALL R.S. 7740 .1 .0 18.5 18.8 98
LOOMIS PARK 8240 .1 1.4 7 25.1 22.6 111
NEW FORK LAKE 8340 1.6 .0 16.2 16.0 101
SNIDER BASIN 8060 .0 .0 100 19.5 20.6 95
SPRING CREEK DIVIDE 9000 10.0 13.6 74 34.4 33.3 103
TRIPLE PEAK 8500 .1 3.2 3 35.3 32.1 110
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Basin wide percent of average 63 104
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 18.2 17.1 106
HEWINTA 9519 .0 .4 0 18.3 20.4 90
HICKERSON PARK 9145 .0 .0 100 14.8 12.7 117
HOLE-IN-ROCK 9150 .0 .0 100 14.1 12.4 114
INDIAN CREEK 9425 5.0 13.5 37 28.6 32.6 88
KELLEY R.S. 8180 .0 .5 0 24.4 26.4 92
STEEL CREEK PARK 10200 2.7 10.8 25 22.4 23.4 96
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Basin wide percent of average 31 97
UPPER BEAR RIVER
BUG LAKE 7950 .1 2.0 5 23.6 25.3 93
HAYDEN FORK 9212 .0 1.0 0 28.2 28.6 99
KELLEY R.S. 8180 .0 .5 0 24.4 26.4 92
LILY LAKE 9156 .0 1.1 0 22.7 24.3 93
MONTE CRISTO 8960 .0 11.2 0 34.1 34.2 100
SALT RIVER SUMMIT 7760 .0 .0 100 22.2 24.2 92
TRIAL LAKE 9992 .4 13.3 3 31.6 33.6 94
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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.