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 FRIDAY: JUNE 11 , 1999
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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* 34.3 28.5 121
COTTONWOOD CREEK 7600 .6 .0 * 40.2 31.9 127
GRANITE CREEK 6770 1.5 .5 300* 31.5 30.7 103
GRASSY LAKE 7265 14.5 3.5 412* 54.8 47.3 116
GROS VENTRE SUMMIT 8775 .3 .0 * 22.7 20.7 110
LEWIS LAKE DIVIDE 7860 20.4 5.8 358 50.3 48.0 105
PHILLIPS BENCH 8200 16.0 5.1 314 41.2 37.9 109
SALT RIVER SUMMIT 7600 .3 .0 * 25.4 22.0 116
SNAKE RIVER STATION 6920 .0 .0 100* 34.3 33.3 104
SPRING CREEK DIVIDE 9000 19.9 5.5 361 38.8 34.5 113
THUMB DIVIDE 7980 .0 .0 100* 30.7 26.7 115
TOGWOTEE PASS 9580 -M 16.4 * 38.7 36.0 108
TWO OCEAN PLATEAU 9360 33.9 17.7 192 41.2 39.3 105
WILLOW CREEK 8450 10.2 5.5 186 53.5 40.8 132
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Basin wide percent of average 268* 113
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 20.2 12.5 163 30.4 25.9 118
BLACK BEAR 7950 45.8 17.9 257 65.0 51.9 126
CANYON 7940 .0 .6 0* 25.2 19.9 128
FISHER CREEK 9100 35.7 24.4 146 47.3 48.4 98
MADISON PLATEAU 7750 -M 2.5 * 42.3 34.4 123
NORTHEAST ENTRANCE 7350 .0 .2 0* 20.2 17.4 116
PARKER PEAK 9400 15.6 13.5 117 -M 22.7 *
SYLVAN LAKE 8420 -M 8.5 * -M 27.4 *
THUMB DIVIDE 7980 .0 .0 100* 30.7 26.7 115
TWO OCEAN PLATEAU 9360 33.9 17.7 192 41.2 39.3 105
WHISKEY CREEK 6800 .0 .5 0* 34.3 28.7 120
WHITE MILL 8700 22.2 13.5 166 32.9 37.8 88
WOLVERINE 7650 .0 .0 100* 16.9 19.0 89
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Basin wide percent of average 173* 111
WIND RIVER
BURROUGHS CREEK 8750 3.7 .6 601* 26.5 23.2 115
COLD SPRINGS 9630 .5 .2 500* 26.7 16.9 159
DEER PARK 9700 15.6 -M * 36.3 -M *
HOBBS PARK 10100 17.9 5.3 343 31.4 21.7 145
LITTLE WARM 9620 1.2 .3 400* 27.7 20.0 139
SOUTH PASS 9040 .0 5.8 0 32.8 24.9 133
ST. LAWRENCE ALT 8620 .0 .2 0* 23.4 15.5 151
TOGWOTEE PASS 9580 -M 16.4 * 38.7 36.0 108
TOWNSEND CREEK 8700 .0 .6 0* 27.9 19.4 144
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Basin wide percent of average 184* 133
BIGHORN BASIN
BALD MTN. 9375 17.0 12.1 141 28.5 26.2 109
BEAR TRAP MEADOW 7900 .0 .0 100* 20.2 14.9 137
BLACKWATER 9780 30.5 11.1 275 34.2 25.4 135
BONE SPRINGS DIV 9350 9.4 4.3 222 28.9 23.4 124
EVENING STAR 9200 27.2 18.0 152 44.5 31.4 142
GRAVE SPRINGS 8550 .0 .6 0* 21.2 17.4 122
KIRWIN 9550 8.1 2.3 369 24.4 17.0 143
MARQUETTE 8760 8.0 1.9 439 24.5 18.2 135
MIDDLE POWDER 7760 .2 .9 13* 23.2 19.2 121
OWL CREEK 8975 .0 .2 0* 18.9 11.5 165
POWDER RIVER PASS 9480 .2 .5 25* 25.2 19.2 132
SHELL CREEK 9580 7.8 6.1 128 24.7 21.0 118
SYLVAN LAKE 8420 -M 8.5 * -M 27.4 *
SYLVAN ROAD 8120 -M .3 * -M 22.9 *
TIMBER CREEK 7950 .0 .2 0* 20.2 14.6 139
YOUNTS PEAK 8350 7.0 4.1 171 25.5 23.2 110
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Basin wide percent of average 187 129
SHOSHONE RIVER
BLACKWATER 9780 30.5 11.1 275 34.2 25.4 135
EVENING STAR 9200 27.2 18.0 152 44.5 31.4 142
KIRWIN 9550 8.1 2.3 369 24.4 17.0 143
MARQUETTE 8760 8.0 1.9 439 24.5 18.2 135
SYLVAN LAKE 8420 -M 8.5 * -M 27.4 *
SYLVAN ROAD 8120 -M .3 * -M 22.9 *
YOUNTS PEAK 8350 7.0 4.1 171 25.5 23.2 110
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Basin wide percent of average 217 133
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 20.2 14.9 137
BIG GOOSE 7990 .0 -M * 21.4 -M *
BONE SPRINGS DIV 9350 9.4 4.3 222 28.9 23.4 124
BURGESS JUNCTION 7880 .0 .7 0* 20.9 18.5 113
CLOUD PEAK RESERVOIR 9860 7.3 4.8 156 28.7 22.4 128
DOME LAKE 8880 -M 1.7 * 20.4 21.2 97
GRAVE SPRINGS 8550 .0 .6 0* 21.2 17.4 122
HANSEN SAWMILL 8760 .0 .3 0* 19.7 14.1 140
MIDDLE POWDER 7760 .2 .9 13* 23.2 19.2 121
POWDER RIVER PASS 9480 .2 .5 25* 25.2 19.2 132
SUCKER CREEK 8880 .2 1.4 8* 25.4 21.7 118
TIE CREEK 6870 .0 -M * 21.7 17.9 122
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Basin wide percent of average 131* 122
BELLE FOURCHE
BLIND PARK 6890 .2 .0 * 25.4 19.7 130
NORTH RAPID CREEK 6130 .2 -M * 23.2 -M *
WARREN PEAK 6520 .0 .2 0* -M 14.5 *
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Basin wide percent of average 0* 130*
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .9 0* 31.4 31.4 100
DIVIDE PEAK 8800 .0 1.2 0* 34.5 31.4 111
ELK RIVER 8700 .0 .2 0* 31.7 25.2 126
JOE WRIGHT 10120 10.1 10.1 100 37.2 35.8 104
NORTH FRENCH CREEK 10100 28.5 15.0 191 42.8 33.0 130
OLD BATTLE 10000 25.7 13.5 191 51.8 40.4 128
SOUTH BRUSH CREEK 8400 6.8 .3 2267* 29.5 24.2 122
TOWER 10500 38.0 32.3 118 53.2 50.3 106
WEBBER SPRINGS 9200 .0 4.5 0 37.8 34.4 110
WILLOW CREEK PASS 9540 .0 .7 0* 19.4 19.2 102
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Basin wide percent of average 140 114
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 12.0 6.6 181 35.4 27.9 128
CASPER MTN. 7900 .3 1.7 12* 27.0 23.9 114
DEADMAN HILL 10220 3.0 5.8 53 26.7 25.4 105
DEER PARK 9700 15.6 -M * 36.3 -M *
LAPRELE CREEK 8320 .0 .3 0* 26.7 19.0 141
RENO HILL 8400 .0 1.4 0* 29.7 25.2 118
ROACH 9700 .0 3.0 31 29.0 30.9 94
SAND LAKE 10080 39.0 16.7 234 44.0 29.4 151
SOUTH PASS 9040 .0 5.8 0 32.8 24.9 133
WINDY PEAK 7840 .0 .0 100* 22.4 16.5 136
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Basin wide percent of average 134 123
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 24.9 21.4 117
DIVIDE PEAK 8800 .0 1.2 0* 34.5 31.4 111
OLD BATTLE 10000 25.7 13.5 191 51.8 40.4 128
SANDSTONE RS 8150 .0 .0 100* 28.5 26.4 108
WHISKEY PARK 8950 11.4 3.7 314 41.3 38.8 107
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Basin wide percent of average 204* 115
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.4 21.2 106
BLIND BULL SUM 8650 21.2 11.1 191 31.4 30.2 104
EAST RIM DIVIDE 7930 .0 2.0 0 20.7 19.9 105
ELKHART PARK G.S. 9400 .0 1.4 0* 23.7 20.9 114
GROS VENTRE SUMMIT 8775 .3 .0 * 22.7 20.7 110
KENDALL R.S. 7740 .0 .0 100* 22.2 20.4 109
LOOMIS PARK 8240 -M .0 * 27.7 24.5 113
NEW FORK LAKE 8340 .0 .0 100* 19.7 18.9 105
SNIDER BASIN 8250 .0 .0 100* 24.9 19.9 126
SPRING CREEK DIVIDE 9000 19.9 5.5 361 38.8 34.5 113
TRIPLE PEAK 8500 6.0 4.3 140 41.4 39.8 105
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Basin wide percent of average 194* 110
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 20.4 17.4 118
HEWINTA 9500 .0 .0 100* 22.2 19.7 113
HICKERSON PARK 9150 .3 .0 * 16.9 16.0 107
HOLE-IN-ROCK 9150 .0 .2 0* 17.5 16.0 111
INDIAN CREEK 9425 23.2 5.0 463 37.2 33.0 113
KELLEY R.S. 8180 .0 .0 100* 27.2 24.5 111
STEEL CREEK PARK 10100 14.0 6.1 230 26.2 21.0 125
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Basin wide percent of average 332* 114
UPPER BEAR RIVER
BUG LAKE 7950 .2 .7 15* 31.9 25.5 125
HAYDEN FORK 9400 .0 .0 100* 31.0 27.0 115
KELLEY R.S. 8180 .0 .0 100* 27.2 24.5 111
LILY LAKE 9050 .0 .3 0* 27.7 21.9 127
MONTE CRISTO 8960 13.5 5.6 242 41.3 34.4 120
SALT RIVER SUMMIT 7600 .3 .0 * 25.4 22.0 116
TRIAL LAKE 9960 11.5 6.3 181 34.3 32.4 106
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Basin wide percent of average 194* 117
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-M = Missing data
* = Data may not provide a valid measure of conditions.
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.