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 SUNDAY: JUNE 13 , 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 28.7 120
COTTONWOOD CREEK 7600 .0 .0 100* 40.3 31.9 127
GRANITE CREEK 6770 1.5 .3 501* 31.7 30.9 103
GRASSY LAKE 7265 11.2 1.9 623* 54.9 47.4 116
GROS VENTRE SUMMIT 8775 -M .0 * -M 20.9 *
LEWIS LAKE DIVIDE 7860 17.2 2.9 594* 50.4 48.3 105
PHILLIPS BENCH 8200 14.2 2.7 547* 41.3 38.0 109
SALT RIVER SUMMIT 7600 .3 .0 * 25.4 22.2 115
SNAKE RIVER STATION 6920 .0 .0 100* 34.3 33.3 104
SPRING CREEK DIVIDE 9000 17.7 2.8 629* 38.8 34.7 113
THUMB DIVIDE 7980 .0 .0 100* 30.7 26.9 115
TOGWOTEE PASS 9580 -M 15.0 * 38.7 36.3 107
TWO OCEAN PLATEAU 9360 32.3 16.7 194 41.2 39.4 105
WILLOW CREEK 8450 7.3 2.8 261* 53.7 41.0 131
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Basin wide percent of average 339* 113
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 19.2 11.0 175 30.4 26.2 117
BLACK BEAR 7950 43.4 16.0 273 65.0 52.3 125
CANYON 7940 .0 .5 0* 25.2 20.0 127
FISHER CREEK 9100 32.8 22.9 144 47.4 48.7 98
MADISON PLATEAU 7750 -M 1.5 * 42.3 34.5 123
NORTHEAST ENTRANCE 7350 .0 .2 0* 20.2 17.7 115
PARKER PEAK 9400 14.0 12.4 114 -M 22.9 *
SYLVAN LAKE 8420 14.6 7.3 203 -M 27.7 *
THUMB DIVIDE 7980 .0 .0 100* 30.7 26.9 115
TWO OCEAN PLATEAU 9360 32.3 16.7 194 41.2 39.4 105
WHISKEY CREEK 6800 .0 .3 0* 34.3 28.9 119
WHITE MILL 8700 21.0 12.2 173 33.0 37.9 88
WOLVERINE 7650 .0 .0 100* 17.2 19.2 91
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Basin wide percent of average 180 111
WIND RIVER
BURROUGHS CREEK 8750 2.4 .3 800* 26.5 23.2 115
COLD SPRINGS 9630 .3 .2 200* 26.7 17.0 158
DEER PARK 9700 14.0 -M * 36.3 -M *
HOBBS PARK 10100 16.5 4.5 375 31.7 21.9 145
LITTLE WARM 9620 1.2 .3 600* 27.5 20.2 137
SOUTH PASS 9040 -M 4.8 * 32.8 25.0 132
ST. LAWRENCE ALT 8620 .0 .2 0* 23.4 15.6 150
TOGWOTEE PASS 9580 -M 15.0 * 38.7 36.3 107
TOWNSEND CREEK 8700 .0 .3 0* 27.7 19.5 143
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Basin wide percent of average 376* 132
BIGHORN BASIN
BALD MTN. 9375 15.2 10.9 141 28.5 26.4 109
BEAR TRAP MEADOW 7900 .0 .0 100* 20.4 15.0 137
BLACKWATER 9780 29.7 9.5 312 34.3 25.7 134
BONE SPRINGS DIV 9350 7.3 3.4 215 28.9 23.5 123
EVENING STAR 9200 25.7 16.5 156 44.5 31.7 141
GRAVE SPRINGS 8550 .0 .3 0* 21.2 17.5 121
KIRWIN 9550 6.5 1.7 407 24.4 17.2 142
MARQUETTE 8760 6.3 1.4 477 24.5 18.4 134
MIDDLE POWDER 7760 .2 .5 25* 22.9 19.4 119
OWL CREEK 8975 .0 .2 0* 19.0 11.5 166
POWDER RIVER PASS 9480 .2 .3 50* 25.2 19.4 130
SHELL CREEK 9580 5.5 5.1 108 24.7 21.2 117
SYLVAN LAKE 8420 14.6 7.3 203 -M 27.7 *
SYLVAN ROAD 8120 -M .3 * -M 23.2 *
TIMBER CREEK 7950 .0 .2 0* 20.2 14.7 138
YOUNTS PEAK 8350 4.3 3.2 139 25.7 23.4 110
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Basin wide percent of average 194 128
SHOSHONE RIVER
BLACKWATER 9780 29.7 9.5 312 34.3 25.7 134
EVENING STAR 9200 25.7 16.5 156 44.5 31.7 141
KIRWIN 9550 6.5 1.7 407 24.4 17.2 142
MARQUETTE 8760 6.3 1.4 477 24.5 18.4 134
SYLVAN LAKE 8420 14.6 7.3 203 -M 27.7 *
SYLVAN ROAD 8120 -M .3 * -M 23.2 *
YOUNTS PEAK 8350 4.3 3.2 139 25.7 23.4 110
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Basin wide percent of average 222 132
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 20.4 15.0 137
BIG GOOSE 7990 .0 -M * 21.4 -M *
BONE SPRINGS DIV 9350 7.3 3.4 215 28.9 23.5 123
BURGESS JUNCTION 7880 .0 .5 0* 20.9 18.7 112
CLOUD PEAK RESERVOIR 9860 4.8 4.0 118 28.7 22.7 127
DOME LAKE 8880 -M 1.4 * 20.2 21.4 95
GRAVE SPRINGS 8550 .0 .3 0* 21.2 17.5 121
HANSEN SAWMILL 8760 .0 .3 0* 19.7 14.4 138
MIDDLE POWDER 7760 .2 .5 25* 22.9 19.4 119
POWDER RIVER PASS 9480 .2 .3 50* 25.2 19.4 130
SUCKER CREEK 8880 .2 .7 15* 25.5 21.9 117
TIE CREEK 6870 .0 -M * 21.9 18.0 122
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Basin wide percent of average 129* 121
BELLE FOURCHE
BLIND PARK 6890 .2 .0 * 26.2 19.9 132
NORTH RAPID CREEK 6130 .0 -M * 24.4 -M *
WARREN PEAK 6520 .0 .2 0* -M 14.7 *
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Basin wide percent of average 0* 132*
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .5 0* 31.4 31.5 100
DIVIDE PEAK 8800 .0 .7 0* 34.7 31.4 111
ELK RIVER 8700 .0 .2 0* 31.4 25.2 125
JOE WRIGHT 10120 9.5 8.7 110 37.3 35.9 104
NORTH FRENCH CREEK 10100 26.2 14.0 189 42.8 33.3 129
OLD BATTLE 10000 23.0 11.5 202 51.8 40.7 128
SOUTH BRUSH CREEK 8400 6.6 .3 3300* 29.5 24.4 121
TOWER 10500 35.5 29.9 119 53.3 50.3 106
WEBBER SPRINGS 9200 .0 3.3 0 37.9 34.7 110
WILLOW CREEK PASS 9540 .0 .5 0* 19.5 19.2 102
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Basin wide percent of average 147 114
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 9.7 5.3 184 35.7 27.9 128
CASPER MTN. 7900 .3 1.4 16* 26.9 24.0 113
DEADMAN HILL 10220 .7 4.8 15 26.7 25.5 105
DEER PARK 9700 14.0 -M * 36.3 -M *
LAPRELE CREEK 8320 .0 .3 0* 26.9 19.2 141
RENO HILL 8400 .0 1.2 0* 29.5 25.4 117
ROACH 9700 .2 2.2 5 29.2 31.2 94
SAND LAKE 10080 35.8 15.1 238 44.3 29.5 150
SOUTH PASS 9040 -M 4.8 * 32.8 25.0 132
WINDY PEAK 7840 .0 .0 100* 22.9 16.7 137
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Basin wide percent of average 156* 123
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .2 .0 * 24.9 21.4 117
DIVIDE PEAK 8800 .0 .7 0* 34.7 31.4 111
OLD BATTLE 10000 23.0 11.5 202 51.8 40.7 128
SANDSTONE RS 8150 .0 .0 100* 28.7 26.5 109
WHISKEY PARK 8950 -M 1.9 * 41.3 38.8 107
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Basin wide percent of average 191* 115
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.4 21.4 106
BLIND BULL SUM 8650 18.7 10.0 187 31.4 30.2 104
EAST RIM DIVIDE 7930 .0 1.0 0* 20.7 19.9 105
ELKHART PARK G.S. 9400 .0 .7 0* 23.7 20.9 114
GROS VENTRE SUMMIT 8775 -M .0 * -M 20.9 *
KENDALL R.S. 7740 .0 .0 100* 22.0 20.4 108
LOOMIS PARK 8240 -M .0 * 27.4 24.7 112
NEW FORK LAKE 8340 .0 .0 100* 19.9 18.9 106
SNIDER BASIN 8250 .0 .0 100* 24.9 19.9 126
SPRING CREEK DIVIDE 9000 17.7 2.8 629* 38.8 34.7 113
TRIPLE PEAK 8500 3.0 2.3 137* 41.5 39.8 105
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Basin wide percent of average 235* 109
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 20.4 17.5 117
HEWINTA 9500 .0 .0 100* 22.2 19.9 112
HICKERSON PARK 9150 .2 .0 * 16.9 16.0 106
HOLE-IN-ROCK 9150 .0 .2 0* 17.5 16.0 110
INDIAN CREEK 9425 20.4 2.5 817* 37.3 33.2 113
KELLEY R.S. 8180 .0 .0 100* 27.2 24.7 111
STEEL CREEK PARK 10100 12.7 5.0 260 26.4 21.4 124
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Basin wide percent of average 442* 113
UPPER BEAR RIVER
BUG LAKE 7950 .2 .5 25* 31.9 25.5 126
HAYDEN FORK 9400 .0 .0 100* 31.0 27.2 115
KELLEY R.S. 8180 .0 .0 100* 27.2 24.7 111
LILY LAKE 9050 .0 .3 0* 27.7 22.0 126
MONTE CRISTO 8960 10.0 4.8 213 41.3 34.7 120
SALT RIVER SUMMIT 7600 .3 .0 * 25.4 22.2 115
TRIAL LAKE 9960 8.9 5.3 170 34.2 32.7 105
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Basin wide percent of average 181* 116
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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.