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 THURSDAY: JUNE 3 , 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* 32.0 28.2 114
COTTONWOOD CREEK 7600 8.0 .0 * 38.7 31.4 124
GRANITE CREEK 6770 1.7 1.5 114* 29.7 30.0 99
GRASSY LAKE 7265 21.5 10.4 209 52.0 46.5 112
GROS VENTRE SUMMIT 8775 6.0 .0 * 21.4 20.4 105
LEWIS LAKE DIVIDE 7860 25.4 17.0 149 48.0 47.3 102
PHILLIPS BENCH 8200 19.9 15.1 132 38.9 37.3 105
SALT RIVER SUMMIT 7600 .3 .0 * 24.4 21.7 113
SNAKE RIVER STATION 6920 .2 .0 * 32.3 32.8 99
SPRING CREEK DIVIDE 9000 23.9 16.4 147 37.3 34.0 110
THUMB DIVIDE 7980 1.7 .0 * 29.4 26.4 112
TOGWOTEE PASS 9580 -M 22.2 * 36.9 35.5 104
TWO OCEAN PLATEAU 9360 34.4 21.7 160 38.9 38.7 101
WILLOW CREEK 8450 17.0 16.5 104 51.5 40.3 129
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Basin wide percent of average 147* 109
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 22.4 18.0 124 29.2 25.2 116
BLACK BEAR 7950 48.7 25.7 190 62.4 50.9 123
CANYON 7940 .3 1.4 24* 24.2 19.2 127
FISHER CREEK 9100 37.3 30.4 124 45.7 47.3 97
MADISON PLATEAU 7750 -M 6.5 * 40.8 33.5 122
NORTHEAST ENTRANCE 7350 .0 .3 0* 19.0 16.7 114
PARKER PEAK 9400 17.0 17.7 97 -M 21.9 *
SYLVAN LAKE 8420 19.2 13.0 147 37.2 26.7 140
THUMB DIVIDE 7980 1.7 .0 * 29.4 26.4 112
TWO OCEAN PLATEAU 9360 34.4 21.7 160 38.9 38.7 101
WHISKEY CREEK 6800 4.5 1.2 400* 31.7 27.9 114
WHITE MILL 8700 24.4 18.2 134 31.7 36.9 86
WOLVERINE 7650 .0 .0 100* 16.4 18.4 90
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Basin wide percent of average 142 111
WIND RIVER
BURROUGHS CREEK 8750 9.0 1.9 500 25.4 22.7 112
COLD SPRINGS 9630 7.3 .3 2434* 26.0 16.4 160
DEER PARK 9700 18.7 -M * 34.4 -M *
HOBBS PARK 10100 20.9 8.5 246 30.5 21.2 145
LITTLE WARM 9620 7.3 .6 1201* 26.4 19.5 136
SOUTH PASS 9040 12.4 9.2 134 31.4 24.2 130
ST. LAWRENCE ALT 8620 .0 .2 0* 22.5 15.0 150
TOGWOTEE PASS 9580 -M 22.2 * 36.9 35.5 104
TOWNSEND CREEK 8700 2.7 1.7 163 27.0 18.9 144
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Basin wide percent of average 269* 131
BIGHORN BASIN
BALD MTN. 9375 20.4 17.4 118 26.9 25.5 106
BEAR TRAP MEADOW 7900 .0 .0 100* 19.5 14.1 139
BLACKWATER 9780 31.2 17.4 181 32.4 24.4 134
BONE SPRINGS DIV 9350 14.5 7.3 198 27.0 22.5 121
EVENING STAR 9200 30.0 24.0 125 42.8 30.2 142
GRAVE SPRINGS 8550 .0 1.9 0 20.2 16.5 123
KIRWIN 9550 11.5 4.5 254 23.2 16.4 142
MARQUETTE 8760 12.0 3.8 325 22.7 17.5 130
MIDDLE POWDER 7760 1.4 2.3 60 23.2 18.4 126
OWL CREEK 8975 .0 .2 0* 17.5 11.0 161
POWDER RIVER PASS 9480 1.7 1.2 142* 23.7 18.4 129
SHELL CREEK 9580 10.6 10.2 104 22.0 20.2 110
SYLVAN LAKE 8420 19.2 13.0 147 37.2 26.7 140
SYLVAN ROAD 8120 .0 .0 0* 23.9 22.2 109
TIMBER CREEK 7950 .5 .3 200* 19.7 14.0 141
YOUNTS PEAK 8350 13.0 8.1 160 24.2 22.5 108
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Basin wide percent of average 148 127
SHOSHONE RIVER
BLACKWATER 9780 31.2 17.4 181 32.4 24.4 134
EVENING STAR 9200 30.0 24.0 125 42.8 30.2 142
KIRWIN 9550 11.5 4.5 254 23.2 16.4 142
MARQUETTE 8760 12.0 3.8 325 22.7 17.5 130
SYLVAN LAKE 8420 19.2 13.0 147 37.2 26.7 140
SYLVAN ROAD 8120 .0 .0 0* 23.9 22.2 109
YOUNTS PEAK 8350 13.0 8.1 160 24.2 22.5 108
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Basin wide percent of average 164 130
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 19.5 14.1 139
BIG GOOSE 7990 -M -M * 20.2 -M *
BONE SPRINGS DIV 9350 14.5 7.3 198 27.0 22.5 121
BURGESS JUNCTION 7880 .3 2.0 15 19.2 17.9 108
CLOUD PEAK RESERVOIR 9860 13.9 7.6 182 26.9 21.7 125
DOME LAKE 8880 -M 3.5 * 18.7 20.4 92
GRAVE SPRINGS 8550 .0 1.9 0 20.2 16.5 123
HANSEN SAWMILL 8760 .0 .7 0* 18.4 13.4 139
MIDDLE POWDER 7760 1.4 2.3 60 23.2 18.4 126
POWDER RIVER PASS 9480 1.7 1.2 142* 23.7 18.4 129
SUCKER CREEK 8880 4.1 3.5 118 23.7 20.9 114
TIE CREEK 6870 .0 -M * 19.9 17.2 116
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Basin wide percent of average 136 120
BELLE FOURCHE
BLIND PARK 6890 .2 .0 * 22.5 18.5 122
NORTH RAPID CREEK 6130 .0 -M * 19.7 -M *
WARREN PEAK 6520 .2 .2 100* -M 13.6 *
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Basin wide percent of average 100* 122*
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 2.4 0* 30.9 31.0 100
DIVIDE PEAK 8800 .0 2.7 0 33.3 30.9 108
ELK RIVER 8700 .0 .3 0* 31.4 24.7 127
JOE WRIGHT 10120 15.5 15.7 99 36.2 35.2 103
NORTH FRENCH CREEK 10100 32.3 19.2 169 40.8 32.5 126
OLD BATTLE 10000 31.0 21.9 142 50.3 39.8 127
SOUTH BRUSH CREEK 8400 7.0 .0 767* 27.7 23.5 118
TOWER 10500 44.8 42.0 107 52.3 49.7 106
WEBBER SPRINGS 9200 2.8 9.2 30 36.4 33.9 108
WILLOW CREEK PASS 9540 .5 1.9 22 18.5 18.5 100
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Basin wide percent of average 116 112
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 16.2 11.6 139 34.9 27.4 128
CASPER MTN. 7900 .3 3.3 7 24.7 23.2 107
DEADMAN HILL 10220 11.0 9.4 119 26.2 24.9 106
DEER PARK 9700 18.7 -M * 34.4 -M *
LAPRELE CREEK 8320 .0 .0 0* 23.7 18.4 129
RENO HILL 8400 .0 2.7 0 27.9 24.5 114
ROACH 9700 -M 6.6 * 27.9 30.4 92
SAND LAKE 10080 46.3 23.2 200 -M 28.7 *
SOUTH PASS 9040 12.4 9.2 134 31.4 24.2 130
WINDY PEAK 7840 .0 .0 100* 20.9 16.0 132
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Basin wide percent of average 144 116
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 24.0 21.0 115
DIVIDE PEAK 8800 .0 2.7 0 33.3 30.9 108
OLD BATTLE 10000 31.0 21.9 142 50.3 39.8 127
SANDSTONE RS 8150 .0 .0 100* 27.7 26.2 106
WHISKEY PARK 8950 23.9 10.5 229 40.3 38.4 105
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Basin wide percent of average 158 113
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .3 .0 * 20.5 20.9 99
BLIND BULL SUM 8650 26.4 15.5 171 29.9 29.7 101
EAST RIM DIVIDE 7930 3.5 6.0 59 19.2 19.4 99
ELKHART PARK G.S. 9400 3.8 3.8 98 21.9 20.4 107
GROS VENTRE SUMMIT 8775 6.0 .0 * 21.4 20.4 105
KENDALL R.S. 7740 .3 .0 * 21.4 19.9 108
LOOMIS PARK 8240 -M .0 * 26.0 24.0 109
NEW FORK LAKE 8340 .3 .0 * 18.0 18.4 98
SNIDER BASIN 8250 .2 .0 * 23.7 19.4 123
SPRING CREEK DIVIDE 9000 23.9 16.4 147 37.3 34.0 110
TRIPLE PEAK 8500 12.9 12.6 102 40.0 39.0 103
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Basin wide percent of average 130* 106
LOWER GREEN RIVER
HAMS FORK 7840 .2 .0 * 19.4 17.0 114
HEWINTA 9500 .0 .0 100* 21.2 19.2 111
HICKERSON PARK 9150 .3 .0 * 16.4 15.5 107
HOLE-IN-ROCK 9150 .0 .2 0* 16.9 15.5 110
INDIAN CREEK 9425 26.2 15.0 175 35.8 32.5 110
KELLEY R.S. 8180 .5 .0 * 26.0 24.0 109
STEEL CREEK PARK 10100 16.0 11.0 147 25.4 20.2 127
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Basin wide percent of average 163* 113
UPPER BEAR RIVER
BUG LAKE 7950 2.2 2.0 106* 30.4 25.0 122
HAYDEN FORK 9400 .5 .0 * 30.5 26.4 116
KELLEY R.S. 8180 .5 .0 * 26.0 24.0 109
LILY LAKE 9050 .0 .0 0* 26.9 21.4 127
MONTE CRISTO 8960 21.4 9.0 237 39.5 33.9 117
SALT RIVER SUMMIT 7600 .3 .0 * 24.4 21.7 113
TRIAL LAKE 9960 15.0 11.0 137 33.0 31.9 104
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Basin wide percent of average 168* 115
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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.