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 SATURDAY: JULY 5 , 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 34.8 29.2 119
COTTONWOOD CREEK 7670 .0 .0 100 -M 38.0 *
GRAND TARGHEE 9260 20.9 -M * 48.6 -M *
GRANITE CREEK 6770 .1 .0 31.9 26.8 119
GRASSY LAKE 7265 .0 .0 100 56.9 48.3 118
GROS VENTRE SUMMIT 8750 .1 .0 20.1 19.9 101
GUNSIGHT PASS 9820 .0 -M * 21.3 -M *
LEWIS LAKE DIVIDE 7850 .6 .0 48.8 48.3 101
PHILLIPS BENCH 8200 .0 .0 100 44.8 39.1 115
SALT RIVER SUMMIT 7760 .0 .0 100 22.1 25.7 86
SNAKE RIVER STATION 6920 .0 .0 100 36.5 30.9 118
SPRING CREEK DIVIDE 9000 -M .0 * 31.9 34.9 91
THUMB DIVIDE 7980 .2 .0 29.2 27.0 108
TOGWOTEE PASS 9580 5.7 .0 41.3 35.2 117
TWO OCEAN PLATEAU 9240 6.3 3.0 210 44.6 39.5 113
WILLOW CREEK 8380 .0 .0 100 53.5 45.4 118
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Basin wide percent of average 210* 110
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 5.5 1.3 423 34.6 30.1 115
BLACK BEAR 8170 4.3 1.2 358 56.6 53.8 105
CANYON 7870 .0 .0 100 28.8 22.9 126
FISHER CREEK 9100 11.2 2.4 467 52.6 50.9 103
MADISON PLATEAU 7750 .2 .0 44.3 37.1 119
NORTHEAST ENTRANCE 7350 .3 .0 22.2 20.5 108
PARKER PEAK 9400 .1 1.5 7 40.6 26.3 154
SYLVAN LAKE 8420 .0 .0 100 40.8 32.3 126
THUMB DIVIDE 7980 .2 .0 29.2 27.0 108
TWO OCEAN PLATEAU 9240 6.3 3.0 210 44.6 39.5 113
WHISKEY CREEK 6800 .0 .0 100 -M 30.2 *
WHITE MILL 8700 .6 .4 150 38.8 38.8 100
WOLVERINE 7650 .1 .0 23.1 20.7 112
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Basin wide percent of average 286 114
WIND RIVER
BURROUGHS CREEK 8750 .1 .0 26.3 24.9 106
COLD SPRINGS 9630 .0 .0 100 18.4 19.6 94
DEER PARK 9700 .5 .0 31.1 33.5 93
HOBBS PARK 10100 .0 .5 0 25.8 23.6 109
LITTLE WARM 9370 .0 .0 100 22.6 22.4 101
SOUTH PASS 9040 .1 .0 27.6 28.2 98
ST. LAWRENCE ALT 8620 -M .0 * -M 17.6 *
TOGWOTEE PASS 9580 5.7 .0 41.3 35.2 117
TOWNSEND CREEK 8700 .0 .0 100 22.2 21.2 105
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Basin wide percent of average 0* 103
BIGHORN BASIN
BALD MTN. 9380 .0 .5 0 29.3 28.6 102
BEAR TRAP MEADOW 8200 .0 .0 100 21.0 17.2 122
BLACKWATER 9780 7.5 3.2 234 38.3 32.6 117
BONE SPRINGS DIV 9350 .0 .0 100 30.3 25.9 117
EVENING STAR 9200 4.2 2.7 156 51.6 38.2 135
GRAVE SPRINGS 8550 .0 .0 100 19.7 18.9 104
KIRWIN 9550 .1 .0 23.6 20.6 115
MARQUETTE 8760 .1 .0 23.4 21.4 109
MIDDLE POWDER 7760 .1 .0 19.3 22.0 88
OWL CREEK 8975 .1 .0 14.4 13.7 105
POWDER RIVER PASS 9480 .0 .0 100 27.4 22.7 121
SHELL CREEK 9580 .1 .1 100 28.0 24.2 116
SYLVAN LAKE 8420 .0 .0 100 40.8 32.3 126
SYLVAN ROAD 7120 .0 .0 100 31.6 26.0 122
TIMBER CREEK 7950 .2 .0 20.4 16.9 121
YOUNTS PEAK 8350 .1 .0 25.9 25.0 104
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Basin wide percent of average 182 115
SHOSHONE RIVER
BLACKWATER 9780 7.5 3.2 234 38.3 32.6 117
EVENING STAR 9200 4.2 2.7 156 51.6 38.2 135
KIRWIN 9550 .1 .0 23.6 20.6 115
MARQUETTE 8760 .1 .0 23.4 21.4 109
SYLVAN LAKE 8420 .0 .0 100 40.8 32.3 126
SYLVAN ROAD 7120 .0 .0 100 31.6 26.0 122
YOUNTS PEAK 8350 .1 .0 25.9 25.0 104
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Basin wide percent of average 198 120
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100 21.0 17.2 122
BIG GOOSE 7990 .3 .0 24.5 18.4 133
BONE SPRINGS DIV 9350 .0 .0 100 30.3 25.9 117
BURGESS JUNCTION 7880 .0 .0 100 27.3 21.6 126
CLOUD PEAK RESERVOIR 9860 .0 .0 100 32.6 25.3 129
DOME LAKE 8880 .0 .0 100 29.6 23.5 126
GRAVE SPRINGS 8550 .0 .0 100 19.7 18.9 104
HANSEN SAWMILL 8360 .0 .0 100 24.4 17.3 141
MIDDLE POWDER 7760 .1 .0 19.3 22.0 88
POWDER RIVER PASS 9480 .0 .0 100 27.4 22.7 121
SUCKER CREEK 8880 .0 .0 100 31.9 24.9 128
TIE CREEK 6870 -M .0 * 24.8 20.4 122
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Basin wide percent of average * 121
BELLE FOURCHE
BLIND PARK 6890 .1 .0 23.1 21.4 108
COLE CANYON 5910 .3 .0 24.0 16.9 142
NORTH RAPID CREEK 6130 .0 .0 100 25.3 18.5 137
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Basin wide percent of average * 127
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 .0 100 36.9 33.9 109
DIVIDE PEAK 8880 .0 .0 100 32.0 29.2 110
ELK RIVER 8700 .2 .0 30.3 27.8 109
JOE WRIGHT 10120 .3 .7 43 40.5 37.6 108
NORTH FRENCH CREEK 10130 -M 1.4 * 41.4 36.9 112
OLD BATTLE 10000 .0 .7 0 51.2 46.3 111
SAGE CREEK BASIN 7850 .0 .0 100 22.8 16.9 135
SOUTH BRUSH CREEK 8440 .0 .0 100 23.8 25.9 92
TOWER 10500 -M 5.9 * 53.9 52.6 102
WEBBER SPRINGS 9250 -M .0 * 39.9 36.6 109
WILLOW CREEK PASS 9540 -M .0 * 24.0 21.3 113
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Basin wide percent of average 21 109
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 .0 100 31.9 33.5 95
CASPER MTN. 7900 .0 .0 100 30.5 26.4 116
DEADMAN HILL 10220 .3 .1 300 28.8 26.6 108
DEER PARK 9700 .5 .0 31.1 33.5 93
LAPRELE CREEK 8375 .0 .0 100 21.8 22.2 98
RENO HILL 8400 -M .0 * 32.6 26.7 122
ROACH 9700 .0 .0 100 32.1 28.6 112
SAND LAKE 10050 .0 1.9 0 43.3 36.9 117
SOUTH PASS 9040 .1 .0 27.6 28.2 98
WINDY PEAK 7900 .5 .0 19.4 19.3 101
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Basin wide percent of average 15 106
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 22.9 22.3 103
DIVIDE PEAK 8880 .0 .0 100 32.0 29.2 110
OLD BATTLE 10000 .0 .7 0 51.2 46.3 111
SANDSTONE RS 8150 -M .0 * 28.4 26.5 107
WHISKEY PARK 8950 .0 .0 100 46.6 40.1 116
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Basin wide percent of average 0 110
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 100 19.3 20.6 94
BLIND BULL SUM 8650 .0 .0 100 25.2 30.0 84
EAST RIM DIVIDE 7930 .0 .0 100 15.7 17.6 89
ELKHART PARK G.S. 9400 .0 .0 100 17.1 21.2 81
GROS VENTRE SUMMIT 8750 .1 .0 20.1 19.9 101
GUNSIGHT PASS 9820 .0 -M * 21.3 -M *
KENDALL R.S. 7740 .0 .0 100 18.2 20.3 90
LOOMIS PARK 8240 .0 .0 100 23.6 24.1 98
NEW FORK LAKE 8340 .0 .0 100 14.8 17.8 83
SNIDER BASIN 8060 .0 .0 100 19.7 21.8 90
SPRING CREEK DIVIDE 9000 -M .0 * 31.9 34.9 91
TRIPLE PEAK 8500 .1 .0 39.6 34.1 116
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Basin wide percent of average * 93
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100 15.9 18.6 85
HEWINTA 9519 .0 .0 100 23.4 22.1 106
HICKERSON PARK 9145 .0 .0 100 15.2 14.3 106
HOLE-IN-ROCK 9150 .0 .0 100 15.7 14.1 111
INDIAN CREEK 9425 .0 .0 100 31.0 34.2 91
KELLEY R.S. 8180 .1 .0 24.5 27.9 88
STEEL CREEK PARK 10200 .8 .1 800 26.0 25.1 104
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Basin wide percent of average 800 97
UPPER BEAR RIVER
BUG LAKE 7950 .1 .0 23.4 26.6 88
HAYDEN FORK 9212 .0 .0 100 31.3 30.4 103
KELLEY R.S. 8180 .1 .0 24.5 27.9 88
LILY LAKE 9156 -M .0 * 25.2 25.9 97
MONTE CRISTO 8960 .0 .0 100 33.1 35.8 92
SALT RIVER SUMMIT 7760 .0 .0 100 22.1 25.7 86
TRIAL LAKE 9992 -M .0 * 32.2 35.5 91
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Basin wide percent of average * 92
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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.