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 30 , 2008
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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 .1 .0 35.0 29.0 121
COTTONWOOD CREEK 7670 .0 .0 100 -M 37.8 *
GRAND TARGHEE 9260 31.3 -M * 48.5 -M *
GRANITE CREEK 6770 .1 .0 31.8 26.6 120
GRASSY LAKE 7265 .0 .0 100 56.9 48.0 119
GROS VENTRE SUMMIT 8750 .1 .0 19.8 19.7 101
GUNSIGHT PASS 9820 .0 -M * 21.3 -M *
LEWIS LAKE DIVIDE 7850 .5 .0 48.9 48.0 102
PHILLIPS BENCH 8200 .0 .0 100 44.3 38.9 114
SALT RIVER SUMMIT 7760 .0 .0 100 22.1 25.5 87
SNAKE RIVER STATION 6920 .0 .0 100 36.5 30.6 119
SPRING CREEK DIVIDE 9000 -M .0 * 31.9 34.7 92
THUMB DIVIDE 7980 .1 .0 29.2 26.8 109
TOGWOTEE PASS 9580 12.4 3.7 335 41.3 34.9 118
TWO OCEAN PLATEAU 9240 14.8 6.8 218 44.2 39.1 113
WILLOW CREEK 8380 .0 .0 100 53.5 45.1 119
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Basin wide percent of average 259 111
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 12.8 2.5 512 34.5 29.7 116
BLACK BEAR 8170 14.8 2.8 529 56.7 53.4 106
CANYON 7870 .0 .0 100 28.7 22.6 127
FISHER CREEK 9100 22.9 6.8 337 52.8 50.4 105
MADISON PLATEAU 7750 .2 .0 44.3 36.8 120
NORTHEAST ENTRANCE 7350 .2 .0 22.0 20.1 109
PARKER PEAK 9400 5.9 2.3 257 40.6 26.0 156
SYLVAN LAKE 8420 .0 .0 100 40.5 32.0 127
THUMB DIVIDE 7980 .1 .0 29.2 26.8 109
TWO OCEAN PLATEAU 9240 14.8 6.8 218 44.2 39.1 113
WHISKEY CREEK 6800 .0 .0 100 -M 29.9 *
WHITE MILL 8700 7.1 1.6 444 38.8 38.4 101
WOLVERINE 7650 .1 .0 23.1 20.4 113
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Basin wide percent of average 343 115
WIND RIVER
BURROUGHS CREEK 8750 .1 .0 26.2 24.7 106
COLD SPRINGS 9630 .0 .0 100 18.4 19.4 95
DEER PARK 9700 .5 .0 31.0 33.3 93
HOBBS PARK 10100 .0 .9 0 25.7 23.3 110
LITTLE WARM 9370 .0 .0 100 22.5 22.1 102
SOUTH PASS 9040 .2 .0 27.5 28.0 98
ST. LAWRENCE ALT 8620 -M .0 * -M 17.5 *
TOGWOTEE PASS 9580 12.4 3.7 335 41.3 34.9 118
TOWNSEND CREEK 8700 .0 .0 100 21.6 20.9 103
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Basin wide percent of average 270 104
BIGHORN BASIN
BALD MTN. 9380 .9 1.1 82 28.7 28.2 102
BEAR TRAP MEADOW 8200 .1 .0 20.2 16.9 120
BLACKWATER 9780 15.3 6.0 255 38.2 32.2 119
BONE SPRINGS DIV 9350 .0 .0 100 29.7 25.5 116
EVENING STAR 9200 12.4 5.2 238 51.6 37.8 137
GRAVE SPRINGS 8550 .0 .0 100 19.5 18.6 105
KIRWIN 9550 .0 .0 100 23.4 20.3 115
MARQUETTE 8760 .0 .0 100 23.2 21.1 110
MIDDLE POWDER 7760 .0 .0 100 19.2 21.7 88
OWL CREEK 8975 .1 .0 13.7 13.5 101
POWDER RIVER PASS 9480 .0 .0 100 26.6 22.4 119
SHELL CREEK 9580 .1 .1 100 27.9 23.8 117
SYLVAN LAKE 8420 .0 .0 100 40.5 32.0 127
SYLVAN ROAD 7120 .0 .0 100 31.5 25.8 122
TIMBER CREEK 7950 .2 .0 19.9 16.7 119
YOUNTS PEAK 8350 .0 .0 100 25.9 24.6 105
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Basin wide percent of average 231 115
SHOSHONE RIVER
BLACKWATER 9780 15.3 6.0 255 38.2 32.2 119
EVENING STAR 9200 12.4 5.2 238 51.6 37.8 137
KIRWIN 9550 .0 .0 100 23.4 20.3 115
MARQUETTE 8760 .0 .0 100 23.2 21.1 110
SYLVAN LAKE 8420 .0 .0 100 40.5 32.0 127
SYLVAN ROAD 7120 .0 .0 100 31.5 25.8 122
YOUNTS PEAK 8350 .0 .0 100 25.9 24.6 105
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Basin wide percent of average 247 121
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .1 .0 20.2 16.9 120
BIG GOOSE 7990 .2 .0 24.4 18.0 136
BONE SPRINGS DIV 9350 .0 .0 100 29.7 25.5 116
BURGESS JUNCTION 7880 .0 .0 100 25.8 21.2 122
CLOUD PEAK RESERVOIR 9860 .1 .0 31.9 24.9 128
DOME LAKE 8880 .0 .0 100 28.9 23.2 125
GRAVE SPRINGS 8550 .0 .0 100 19.5 18.6 105
HANSEN SAWMILL 8360 .0 .0 100 23.6 17.0 139
MIDDLE POWDER 7760 .0 .0 100 19.2 21.7 88
POWDER RIVER PASS 9480 .0 .0 100 26.6 22.4 119
SUCKER CREEK 8880 .0 .0 100 31.2 24.5 127
TIE CREEK 6870 -M .0 * 24.2 20.1 120
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Basin wide percent of average * 120
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100 23.1 21.0 110
COLE CANYON 5910 .1 .0 23.7 16.5 144
NORTH RAPID CREEK 6130 .0 .0 100 25.2 17.9 141
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Basin wide percent of average * 130
UPPER N. PLATTE RIVER
COLUMBINE 9160 -M .0 * 36.4 33.7 108
DIVIDE PEAK 8880 -M .0 * 32.1 29.0 111
ELK RIVER 8700 -M .0 * 30.3 27.6 110
JOE WRIGHT 10120 .2 1.5 13 40.2 37.3 108
NORTH FRENCH CREEK 10130 -M 3.1 * 41.2 36.6 113
OLD BATTLE 10000 .7 2.1 33 51.1 46.1 111
SAGE CREEK BASIN 7850 .0 .0 100 22.6 16.8 135
SOUTH BRUSH CREEK 8440 .0 .0 100 24.0 25.6 94
TOWER 10500 7.4 9.7 76 53.9 52.3 103
WEBBER SPRINGS 9250 .0 .0 100 40.1 36.4 110
WILLOW CREEK PASS 9540 -M .0 * 23.9 21.0 114
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Basin wide percent of average 62 109
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 .6 0 32.0 33.2 96
CASPER MTN. 7900 .0 .1 0 30.5 26.2 116
DEADMAN HILL 10220 .2 .5 40 28.8 26.4 109
DEER PARK 9700 .5 .0 31.0 33.3 93
LAPRELE CREEK 8375 .0 .0 100 21.4 22.0 97
RENO HILL 8400 .0 .0 100 32.4 26.6 122
ROACH 9700 .0 .0 100 31.7 28.4 112
SAND LAKE 10050 2.0 3.6 56 43.2 36.7 118
SOUTH PASS 9040 .2 .0 27.5 28.0 98
WINDY PEAK 7900 -M .0 * 19.2 19.1 101
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Basin wide percent of average 46 106
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 22.9 22.2 103
DIVIDE PEAK 8880 -M .0 * 32.1 29.0 111
OLD BATTLE 10000 .7 2.1 33 51.1 46.1 111
SANDSTONE RS 8150 -M .0 * 28.4 26.3 108
WHISKEY PARK 8950 .0 .0 100 46.6 39.8 117
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Basin wide percent of average 33 111
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 100 19.4 20.4 95
BLIND BULL SUM 8650 .0 .0 100 25.1 29.8 84
EAST RIM DIVIDE 7930 .0 .0 100 15.6 17.5 89
ELKHART PARK G.S. 9400 .0 .0 100 16.8 21.0 80
GROS VENTRE SUMMIT 8750 .1 .0 19.8 19.7 101
GUNSIGHT PASS 9820 .0 -M * 21.3 -M *
KENDALL R.S. 7740 .0 .0 100 18.4 20.2 91
LOOMIS PARK 8240 .0 .0 100 23.2 23.9 97
NEW FORK LAKE 8340 .0 .0 100 14.1 17.6 80
SNIDER BASIN 8060 .0 .0 100 19.7 21.6 91
SPRING CREEK DIVIDE 9000 -M .0 * 31.9 34.7 92
TRIPLE PEAK 8500 .1 .0 39.5 33.9 117
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Basin wide percent of average * 94
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100 15.7 18.4 85
HEWINTA 9519 .0 .0 100 23.3 21.8 107
HICKERSON PARK 9145 .0 .0 100 15.0 14.1 106
HOLE-IN-ROCK 9150 .0 .0 100 15.5 13.9 112
INDIAN CREEK 9425 .0 .0 100 30.9 34.1 91
KELLEY R.S. 8180 .1 .0 24.4 27.7 88
STEEL CREEK PARK 10200 .7 .6 117 26.0 24.9 104
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Basin wide percent of average 117 97
UPPER BEAR RIVER
BUG LAKE 7950 .1 .0 23.3 26.5 88
HAYDEN FORK 9212 .1 .0 -M 30.2 *
KELLEY R.S. 8180 .1 .0 24.4 27.7 88
LILY LAKE 9156 -M .0 * 25.3 25.7 98
MONTE CRISTO 8960 .0 .0 100 33.2 35.7 93
SALT RIVER SUMMIT 7760 .0 .0 100 22.1 25.5 87
TRIAL LAKE 9992 -M .7 * 32.3 35.3 92
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Basin wide percent of average * 91
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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.