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 23 , 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 .0 .0 100 35.0 28.6 122
COTTONWOOD CREEK 7670 .0 .0 100 32.0 37.5 85
GRAND TARGHEE 9260 45.5 -M * 48.5 -M *
GRANITE CREEK 6770 .1 .0 31.6 26.4 120
GRASSY LAKE 7265 .0 .0 100 57.0 47.5 120
GROS VENTRE SUMMIT 8750 .0 .0 100 19.8 19.3 103
GUNSIGHT PASS 9820 -M -M * 21.2 -M *
LEWIS LAKE DIVIDE 7850 .5 .0 49.2 47.5 104
PHILLIPS BENCH 8200 1.6 .0 44.4 38.5 115
SALT RIVER SUMMIT 7760 .0 .0 100 22.1 25.2 88
SNAKE RIVER STATION 6920 .0 .0 100 36.5 30.2 121
SPRING CREEK DIVIDE 9000 -M .0 * 32.2 34.4 94
THUMB DIVIDE 7980 .2 .0 29.2 26.4 111
TOGWOTEE PASS 9580 20.2 8.7 232 41.3 34.5 120
TWO OCEAN PLATEAU 9240 26.6 11.9 224 43.9 38.5 114
WILLOW CREEK 8380 .0 .0 100 53.4 44.7 119
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Basin wide percent of average 227 110
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 20.9 6.1 343 34.4 29.1 118
BLACK BEAR 8170 27.3 7.2 379 56.6 52.8 107
CANYON 7870 .5 .0 28.1 22.2 127
FISHER CREEK 9100 -M 13.4 * 52.8 49.6 106
MADISON PLATEAU 7750 4.7 .1 4700 44.1 36.3 121
NORTHEAST ENTRANCE 7350 .1 .0 21.9 19.6 112
PARKER PEAK 9400 16.8 5.5 305 40.1 25.5 157
SYLVAN LAKE 8420 .9 1.3 69 40.5 31.5 129
THUMB DIVIDE 7980 .2 .0 29.2 26.4 111
TWO OCEAN PLATEAU 9240 26.6 11.9 224 43.9 38.5 114
WHISKEY CREEK 6800 .1 .0 -M 29.4 *
WHITE MILL 8700 17.3 5.3 326 38.7 37.8 102
WOLVERINE 7650 .0 .0 100 23.1 20.0 116
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Basin wide percent of average 306 116
WIND RIVER
BURROUGHS CREEK 8750 .1 .0 26.2 24.3 108
COLD SPRINGS 9630 .0 .0 100 18.4 19.0 97
DEER PARK 9700 1.0 .4 250 31.0 33.0 94
HOBBS PARK 10100 1.2 2.3 52 25.8 22.9 113
LITTLE WARM 9370 .0 .0 100 22.6 21.7 104
SOUTH PASS 9040 .1 .4 25 27.6 27.7 100
ST. LAWRENCE ALT 8620 .1 .0 16.8 17.1 98
TOGWOTEE PASS 9580 20.2 8.7 232 41.3 34.5 120
TOWNSEND CREEK 8700 .0 .0 100 22.1 20.6 107
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Basin wide percent of average 191 105
BIGHORN BASIN
BALD MTN. 9380 8.9 3.8 234 27.8 27.6 101
BEAR TRAP MEADOW 8200 .1 .0 19.4 16.4 118
BLACKWATER 9780 24.8 11.6 214 38.1 31.6 121
BONE SPRINGS DIV 9350 .0 .5 0 29.7 24.9 119
EVENING STAR 9200 22.6 10.6 213 51.7 37.2 139
GRAVE SPRINGS 8550 .0 .0 100 19.2 18.1 106
KIRWIN 9550 .0 .1 0 23.3 19.8 118
MARQUETTE 8760 -M .4 * 22.7 20.6 110
MIDDLE POWDER 7760 .1 .0 18.9 21.2 89
OWL CREEK 8975 .1 .0 13.5 13.1 103
POWDER RIVER PASS 9480 .1 .0 26.6 21.9 121
SHELL CREEK 9580 8.8 1.1 800 28.0 23.2 121
SYLVAN LAKE 8420 .9 1.3 69 40.5 31.5 129
SYLVAN ROAD 7120 .0 .0 100 31.5 25.2 125
TIMBER CREEK 7950 .2 .0 19.5 16.3 120
YOUNTS PEAK 8350 .1 .0 25.9 24.1 107
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Basin wide percent of average 228 117
SHOSHONE RIVER
BLACKWATER 9780 24.8 11.6 214 38.1 31.6 121
EVENING STAR 9200 22.6 10.6 213 51.7 37.2 139
KIRWIN 9550 .0 .1 0 23.3 19.8 118
MARQUETTE 8760 -M .4 * 22.7 20.6 110
SYLVAN LAKE 8420 .9 1.3 69 40.5 31.5 129
SYLVAN ROAD 7120 .0 .0 100 31.5 25.2 125
YOUNTS PEAK 8350 .1 .0 25.9 24.1 107
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Basin wide percent of average 205 123
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .1 .0 19.4 16.4 118
BIG GOOSE 7990 .3 .0 24.6 17.7 139
BONE SPRINGS DIV 9350 .0 .5 0 29.7 24.9 119
BURGESS JUNCTION 7880 .0 .0 100 25.8 20.7 125
CLOUD PEAK RESERVOIR 9860 7.2 .7 1029 31.9 24.3 131
DOME LAKE 8880 .0 .0 100 28.9 22.8 127
GRAVE SPRINGS 8550 .0 .0 100 19.2 18.1 106
HANSEN SAWMILL 8360 .2 .0 23.5 16.5 142
MIDDLE POWDER 7760 .1 .0 18.9 21.2 89
POWDER RIVER PASS 9480 .1 .0 26.6 21.9 121
SUCKER CREEK 8880 .1 .0 -M 24.0 *
TIE CREEK 6870 -M .0 * 24.1 19.7 122
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Basin wide percent of average 600* 122
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100 22.6 20.4 111
COLE CANYON 5910 .2 .0 23.7 15.7 151
NORTH RAPID CREEK 6130 .0 .0 100 24.7 17.0 145
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Basin wide percent of average * 134
UPPER N. PLATTE RIVER
COLUMBINE 9160 -M .0 * 36.4 33.4 109
DIVIDE PEAK 8880 .0 .0 100 32.1 28.8 111
ELK RIVER 8700 -M .0 * 30.4 27.3 111
JOE WRIGHT 10120 2.4 3.4 71 40.2 36.8 109
NORTH FRENCH CREEK 10130 5.4 6.8 79 41.3 36.2 114
OLD BATTLE 10000 12.1 6.2 195 51.6 45.8 113
SAGE CREEK BASIN 7850 .0 .0 100 22.7 16.7 136
SOUTH BRUSH CREEK 8440 .0 .0 100 24.1 25.2 96
TOWER 10500 19.0 16.9 112 53.9 51.9 104
WEBBER SPRINGS 9250 .0 .2 0 40.3 36.1 112
WILLOW CREEK PASS 9540 .4 .0 24.1 20.6 117
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Basin wide percent of average 116 111
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 1.7 0 32.0 32.8 98
CASPER MTN. 7900 .0 .4 0 30.5 25.8 118
DEADMAN HILL 10220 .1 1.4 7 28.8 26.1 110
DEER PARK 9700 1.0 .4 250 31.0 33.0 94
LAPRELE CREEK 8375 .0 .0 100 21.4 21.7 99
RENO HILL 8400 .0 .0 100 32.4 26.3 123
ROACH 9700 .0 .4 0 31.6 28.0 113
SAND LAKE 10050 14.2 7.1 200 43.2 36.3 119
SOUTH PASS 9040 .1 .4 25 27.6 27.7 100
WINDY PEAK 7900 -M .0 * 19.1 18.8 102
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Basin wide percent of average 131 108
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 23.0 22.0 105
DIVIDE PEAK 8880 .0 .0 100 32.1 28.8 111
OLD BATTLE 10000 12.1 6.2 195 51.6 45.8 113
SANDSTONE RS 8150 -M .0 * 28.4 26.0 109
WHISKEY PARK 8950 .0 .9 0 46.6 39.5 118
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Basin wide percent of average 170 112
UPPER GREEN RIVER
BIG SANDY OPENING 9080 -M .0 * 19.4 20.1 97
BLIND BULL SUM 8650 8.6 3.6 239 25.0 29.5 85
EAST RIM DIVIDE 7930 .0 .0 100 15.6 17.3 90
ELKHART PARK G.S. 9400 .0 .0 100 16.7 20.6 81
GROS VENTRE SUMMIT 8750 .0 .0 100 19.8 19.3 103
GUNSIGHT PASS 9820 -M -M * 21.2 -M *
KENDALL R.S. 7740 .0 .0 100 18.5 19.9 93
LOOMIS PARK 8240 .1 .0 23.4 23.7 99
NEW FORK LAKE 8340 .0 .0 100 14.3 17.3 83
SNIDER BASIN 8060 .0 .0 100 19.8 21.4 93
SPRING CREEK DIVIDE 9000 -M .0 * 32.2 34.4 94
TRIPLE PEAK 8500 .0 .0 100 39.4 33.5 118
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Basin wide percent of average 239 95
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100 15.7 18.2 86
HEWINTA 9519 .0 .0 100 23.2 21.5 108
HICKERSON PARK 9145 .0 .0 100 14.5 13.8 105
HOLE-IN-ROCK 9150 .0 .0 100 15.3 13.6 112
INDIAN CREEK 9425 2.8 .0 30.9 33.9 91
KELLEY R.S. 8180 .1 .0 24.3 27.5 88
STEEL CREEK PARK 10200 2.6 1.9 137 26.1 24.6 106
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Basin wide percent of average 137 98
UPPER BEAR RIVER
BUG LAKE 7950 .2 .0 23.4 26.3 89
HAYDEN FORK 9212 .1 .0 31.2 29.9 104
KELLEY R.S. 8180 .1 .0 24.3 27.5 88
LILY LAKE 9156 .6 .0 25.3 25.5 99
MONTE CRISTO 8960 .0 .8 0 33.3 35.5 94
SALT RIVER SUMMIT 7760 .0 .0 100 22.1 25.2 88
TRIAL LAKE 9992 -M 2.7 * 32.3 35.0 92
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Basin wide percent of average 0* 94
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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.