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: JULY 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 30.7 29.5 104
COTTONWOOD CREEK 7670 .0 .0 100 -M 38.3 *
GRAND TARGHEE 9260 .0 -M * 50.7 -M *
GRANITE CREEK 6770 -M .0 * 31.4 27.1 116
GRASSY LAKE 7265 .1 .0 47.5 48.7 98
GROS VENTRE SUMMIT 8750 -M .0 * -M 20.3 *
GUNSIGHT PASS 9820 -M -M * -M -M *
LEWIS LAKE DIVIDE 7850 .0 .0 100 48.8 48.7 100
PHILLIPS BENCH 8200 .1 .0 42.8 39.4 109
SALT RIVER SUMMIT 7760 .0 .0 100 -M 25.9 *
SNAKE RIVER STATION 6920 -M .0 * 34.9 31.3 112
SPRING CREEK DIVIDE 9000 .0 .0 100 -M 35.2 *
THUMB DIVIDE 7980 .1 .0 32.6 27.3 119
TOGWOTEE PASS 9580 .0 .0 100 44.1 35.6 124
TWO OCEAN PLATEAU 9240 .0 .0 100 45.9 40.0 115
WILLOW CREEK 8380 .3 .0 -M 45.9 *
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Basin wide percent of average * 109
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 .0 .7 0 34.2 30.6 112
BLACK BEAR 8170 .0 .0 100 51.1 54.2 94
CANYON 7870 .0 .0 100 26.7 23.4 114
FISHER CREEK 9100 .0 .1 0 50.7 51.6 98
MADISON PLATEAU 7750 .0 .0 100 36.7 37.6 98
NORTHEAST ENTRANCE 7350 .0 .0 100 23.1 21.0 110
PARKER PEAK 9400 .0 .9 0 30.0 26.8 112
SYLVAN LAKE 8420 .0 .0 100 37.1 32.9 113
THUMB DIVIDE 7980 .1 .0 32.6 27.3 119
TWO OCEAN PLATEAU 9240 .0 .0 100 45.9 40.0 115
WHISKEY CREEK 6800 .1 .0 30.0 30.6 98
WHITE MILL 8700 .1 .0 37.5 39.4 95
WOLVERINE 7650 .0 .0 100 21.7 21.1 103
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Basin wide percent of average 0 105
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100 29.1 25.2 115
COLD SPRINGS 9630 .0 .0 100 20.5 19.9 103
DEER PARK 9700 .0 .0 100 31.0 33.9 91
HOBBS PARK 10100 .0 .0 100 26.4 24.0 110
LITTLE WARM 9370 .0 .0 100 26.3 22.8 115
SOUTH PASS 9040 .1 .0 26.9 28.5 94
ST. LAWRENCE ALT 8620 .1 .0 19.0 18.0 106
TOGWOTEE PASS 9580 .0 .0 100 44.1 35.6 124
TOWNSEND CREEK 8700 .0 .0 100 22.4 21.5 104
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Basin wide percent of average * 107
BIGHORN BASIN
BALD MTN. 9380 .0 .1 0 26.7 29.1 92
BEAR TRAP MEADOW 8200 .0 .0 100 17.6 17.6 100
BLACKWATER 9780 .0 1.0 0 37.1 33.1 112
BONE SPRINGS DIV 9350 .0 .0 100 25.2 26.4 95
EVENING STAR 9200 .0 1.1 0 44.6 38.8 115
GRAVE SPRINGS 8550 .0 .0 100 16.2 19.4 84
KIRWIN 9550 .0 .0 100 26.6 21.2 125
MARQUETTE 8760 .0 .0 100 18.0 21.9 82
MIDDLE POWDER 7760 .0 .0 100 18.6 22.4 83
OWL CREEK 8975 .0 .0 100 18.7 14.0 134
POWDER RIVER PASS 9480 .0 .0 100 25.9 23.1 112
SHELL CREEK 9580 .0 .0 100 26.3 24.6 107
SYLVAN LAKE 8420 .0 .0 100 37.1 32.9 113
SYLVAN ROAD 7120 .0 .0 100 30.6 26.4 116
TIMBER CREEK 7950 .0 .0 100 18.0 17.3 104
YOUNTS PEAK 8350 .0 .0 100 26.6 25.5 104
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Basin wide percent of average 0 105
SHOSHONE RIVER
BLACKWATER 9780 .0 1.0 0 37.1 33.1 112
EVENING STAR 9200 .0 1.1 0 44.6 38.8 115
KIRWIN 9550 .0 .0 100 26.6 21.2 125
MARQUETTE 8760 .0 .0 100 18.0 21.9 82
SYLVAN LAKE 8420 .0 .0 100 37.1 32.9 113
SYLVAN ROAD 7120 .0 .0 100 30.6 26.4 116
YOUNTS PEAK 8350 .0 .0 100 26.6 25.5 104
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Basin wide percent of average 0 110
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100 17.6 17.6 100
BIG GOOSE 7990 .0 .0 100 20.3 18.7 109
BONE SPRINGS DIV 9350 .0 .0 100 25.2 26.4 95
BURGESS JUNCTION 7880 .0 .0 100 21.6 22.1 98
CLOUD PEAK RESERVOIR 9860 .0 .0 100 27.6 25.8 107
DOME LAKE 8880 .0 .0 100 24.5 24.0 102
GRAVE SPRINGS 8550 .0 .0 100 16.2 19.4 84
HANSEN SAWMILL 8360 .0 .0 100 18.2 17.7 103
MIDDLE POWDER 7760 .0 .0 100 18.6 22.4 83
POWDER RIVER PASS 9480 .0 .0 100 25.9 23.1 112
SUCKER CREEK 8880 .0 .0 100 27.7 25.4 109
TIE CREEK 6870 .0 .0 100 24.8 20.7 120
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Basin wide percent of average * 102
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100 24.5 22.1 111
COLE CANYON 5910 .0 .0 100 22.5 17.5 129
NORTH RAPID CREEK 6130 .1 .0 19.8 19.5 102
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Basin wide percent of average * 113
UPPER N. PLATTE RIVER
COLUMBINE 9160 .1 .0 37.4 34.2 109
DIVIDE PEAK 8880 -M .0 * -M 29.5 *
ELK RIVER 8700 .2 .0 31.2 28.1 111
JOE WRIGHT 10120 .1 .0 41.8 38.2 109
NORTH FRENCH CREEK 10130 -M .0 * -M 37.5 *
OLD BATTLE 10000 .0 .0 100 53.4 46.7 114
SAGE CREEK BASIN 7850 .0 .0 100 .0 17.1 0
SOUTH BRUSH CREEK 8440 .0 .0 100 26.3 26.4 100
TOWER 10500 .0 2.1 0 58.7 53.0 111
WEBBER SPRINGS 9250 .0 .0 100 40.9 36.9 111
WILLOW CREEK PASS 9540 .1 .0 22.4 21.7 103
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Basin wide percent of average 0* 103
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 -M .0 * 33.4 33.9 99
CASPER MTN. 7900 .0 .0 100 25.0 26.7 94
DEADMAN HILL 10220 .1 .0 27.3 26.9 101
DEER PARK 9700 .0 .0 100 31.0 33.9 91
LAPRELE CREEK 8375 .0 .0 100 21.5 22.6 95
RENO HILL 8400 .1 .0 27.0 27.1 100
ROACH 9700 .0 .0 100 30.7 28.9 106
SAND LAKE 10050 .0 .0 100 43.8 37.3 117
SOUTH PASS 9040 .1 .0 26.9 28.5 94
WINDY PEAK 7900 .3 .0 20.1 19.7 102
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Basin wide percent of average * 100
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 28.1 22.5 125
DIVIDE PEAK 8880 -M .0 * -M 29.5 *
OLD BATTLE 10000 .0 .0 100 53.4 46.7 114
SANDSTONE RS 8150 -M .0 * 30.6 26.8 114
WHISKEY PARK 8950 -M .0 * 47.1 40.5 116
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Basin wide percent of average * 117
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 100 -M 21.0 *
BLIND BULL SUM 8650 .0 .0 100 -M 30.3 *
EAST RIM DIVIDE 7930 .0 .0 100 -M 17.9 *
ELKHART PARK G.S. 9400 -M .0 * -M 21.5 *
GROS VENTRE SUMMIT 8750 -M .0 * -M 20.3 *
GUNSIGHT PASS 9820 -M -M * -M -M *
KENDALL R.S. 7740 .0 .0 100 -M 20.6 *
LOOMIS PARK 8240 .1 .0 -M 24.4 *
NEW FORK LAKE 8340 -M .0 * -M 18.1 *
SNIDER BASIN 8060 .0 .0 100 -M 22.0 *
SPRING CREEK DIVIDE 9000 .0 .0 100 -M 35.2 *
TRIPLE PEAK 8500 1.8 .0 -M 34.4 *
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Basin wide percent of average * *
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 -M 18.8 *
HEWINTA 9519 .0 .0 100 21.6 22.6 96
HICKERSON PARK 9145 .0 .0 100 20.7 14.7 141
HOLE-IN-ROCK 9150 .0 .0 100 17.9 14.5 123
INDIAN CREEK 9425 1.3 .0 -M 34.5 *
KELLEY R.S. 8180 .0 .0 100 -M 28.1 *
STEEL CREEK PARK 10200 .0 .0 100 25.9 25.6 101
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Basin wide percent of average * 111
UPPER BEAR RIVER
BUG LAKE 7950 -M .0 * 26.9 26.8 100
HAYDEN FORK 9212 .0 .0 100 32.7 30.7 107
KELLEY R.S. 8180 .0 .0 100 -M 28.1 *
LILY LAKE 9156 .0 .0 100 27.0 26.1 103
MONTE CRISTO 8960 -M .0 * 38.5 36.1 107
SALT RIVER SUMMIT 7760 .0 .0 100 -M 25.9 *
TRIAL LAKE 9992 .0 .0 100 37.4 35.9 104
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Basin wide percent of average * 104
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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.