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 6 , 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* 33.0 28.2 118
COTTONWOOD CREEK 7600 5.3 .0 * 39.4 31.5 126
GRANITE CREEK 6770 1.5 1.2 137* 30.9 30.2 102
GRASSY LAKE 7265 18.7 7.8 240 53.2 46.8 114
GROS VENTRE SUMMIT 8775 4.5 .0 * 21.9 20.4 107
LEWIS LAKE DIVIDE 7860 23.9 12.9 186 49.2 47.7 104
PHILLIPS BENCH 8200 17.9 11.5 158 39.7 37.5 106
SALT RIVER SUMMIT 7600 .3 .0 * 24.9 21.7 115
SNAKE RIVER STATION 6920 .0 .0 100* 33.3 32.9 101
SPRING CREEK DIVIDE 9000 22.9 12.4 186 38.2 34.3 112
THUMB DIVIDE 7980 -M .0 * -M 26.4 *
TOGWOTEE PASS 9580 -M 20.0 * -M 35.8 *
TWO OCEAN PLATEAU 9360 34.3 20.2 171 39.8 38.9 103
WILLOW CREEK 8450 14.7 12.5 119 52.4 40.4 130
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Basin wide percent of average 172* 111
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 21.7 16.0 136 29.7 25.5 117
BLACK BEAR 7950 47.8 22.7 211 63.7 51.3 124
CANYON 7940 .3 1.0 30* 24.5 19.4 127
FISHER CREEK 9100 35.8 28.2 128 46.3 47.8 98
MADISON PLATEAU 7750 -M 5.0 * -M 33.9 *
NORTHEAST ENTRANCE 7350 -M .3 * -M 17.0 *
PARKER PEAK 9400 16.7 16.0 104 -M 22.2 *
SYLVAN LAKE 8420 17.7 11.4 156 38.0 26.9 142
THUMB DIVIDE 7980 -M .0 * -M 26.4 *
TWO OCEAN PLATEAU 9360 34.3 20.2 171 39.8 38.9 103
WHISKEY CREEK 6800 1.2 .9 138* 32.8 28.2 117
WHITE MILL 8700 23.4 16.4 143 32.2 37.3 87
WOLVERINE 7650 .0 .0 100* 16.9 18.7 91
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Basin wide percent of average 150 111
WIND RIVER
BURROUGHS CREEK 8750 7.8 1.4 600* 26.2 22.9 115
COLD SPRINGS 9630 5.8 .3 2850* 26.4 16.5 161
DEER PARK 9700 17.9 -M * 35.3 -M *
HOBBS PARK 10100 20.7 7.3 283 31.2 21.4 147
LITTLE WARM 9620 5.8 .5 1141* 27.2 19.7 138
SOUTH PASS 9040 9.5 8.0 121 31.7 24.4 130
ST. LAWRENCE ALT 8620 .0 .2 0* 23.2 15.2 152
TOGWOTEE PASS 9580 -M 20.0 * -M 35.8 *
TOWNSEND CREEK 8700 .2 1.2 9 27.5 19.0 145
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Basin wide percent of average 268* 140
BIGHORN BASIN
BALD MTN. 9375 19.7 15.4 129 28.0 25.9 109
BEAR TRAP MEADOW 7900 .2 .0 * 20.0 14.5 139
BLACKWATER 9780 31.2 15.0 209 33.2 24.7 135
BONE SPRINGS DIV 9350 -M 6.3 * -M 22.9 *
EVENING STAR 9200 28.7 21.9 132 43.4 30.7 142
GRAVE SPRINGS 8550 .2 1.4 8 20.7 16.9 124
KIRWIN 9550 11.0 3.8 295 23.9 16.7 144
MARQUETTE 8760 10.5 3.0 350 23.5 17.9 133
MIDDLE POWDER 7760 .6 1.7 36 23.2 18.7 124
OWL CREEK 8975 .5 .2 400* 18.4 11.1 166
POWDER RIVER PASS 9480 .6 .0 67* 24.5 18.7 132
SHELL CREEK 9580 10.5 8.7 121 23.4 20.4 115
SYLVAN LAKE 8420 17.7 11.4 156 38.0 26.9 142
SYLVAN ROAD 8120 .0 .7 0* 24.4 22.4 109
TIMBER CREEK 7950 .3 .3 100* 20.2 14.2 142
YOUNTS PEAK 8350 11.0 6.6 167 24.5 22.9 108
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Basin wide percent of average 158 129
SHOSHONE RIVER
BLACKWATER 9780 31.2 15.0 209 33.2 24.7 135
EVENING STAR 9200 28.7 21.9 132 43.4 30.7 142
KIRWIN 9550 11.0 3.8 295 23.9 16.7 144
MARQUETTE 8760 10.5 3.0 350 23.5 17.9 133
SYLVAN LAKE 8420 17.7 11.4 156 38.0 26.9 142
SYLVAN ROAD 8120 .0 .7 0* 24.4 22.4 109
YOUNTS PEAK 8350 11.0 6.6 167 24.5 22.9 108
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Basin wide percent of average 177 131
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .2 .0 * 20.0 14.5 139
BIG GOOSE 7990 -M -M * 20.4 -M *
BONE SPRINGS DIV 9350 -M 6.3 * -M 22.9 *
BURGESS JUNCTION 7880 -M 1.5 * -M 18.2 *
CLOUD PEAK RESERVOIR 9860 12.2 6.5 188 27.7 21.9 127
DOME LAKE 8880 -M 2.8 * 19.2 20.7 93
GRAVE SPRINGS 8550 .2 1.4 8 20.7 16.9 124
HANSEN SAWMILL 8760 .0 .6 0* 19.4 13.6 142
MIDDLE POWDER 7760 .6 1.7 36 23.2 18.7 124
POWDER RIVER PASS 9480 .6 .0 67* 24.5 18.7 132
SUCKER CREEK 8880 1.5 2.8 56 24.4 21.2 116
TIE CREEK 6870 .0 -M * 20.9 17.4 120
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Basin wide percent of average 110* 123
BELLE FOURCHE
BLIND PARK 6890 .2 .0 * 22.9 18.9 122
NORTH RAPID CREEK 6130 .2 -M * 20.2 -M *
WARREN PEAK 6520 .2 .2 100* -M 14.0 *
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Basin wide percent of average 100* 122*
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 1.9 0* 31.0 31.2 100
DIVIDE PEAK 8800 .0 2.0 0* 33.2 31.2 107
ELK RIVER 8700 .0 .3 0* 31.0 24.9 125
JOE WRIGHT 10120 13.5 13.6 100 36.7 35.4 104
NORTH FRENCH CREEK 10100 29.5 17.7 168 41.0 32.8 126
OLD BATTLE 10000 30.7 18.9 164 50.4 40.0 127
SOUTH BRUSH CREEK 8400 6.8 .7 972* 27.9 23.9 117
TOWER 10500 41.9 38.4 110 52.3 49.8 106
WEBBER SPRINGS 9200 .2 7.5 2 36.5 34.2 108
WILLOW CREEK PASS 9540 .0 1.5 0 18.9 18.7 101
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Basin wide percent of average 121 112
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 14.0 9.7 145 35.0 27.5 128
CASPER MTN. 7900 -M 2.7 * -M 23.4 *
DEADMAN HILL 10220 8.5 8.0 107 26.4 25.0 106
DEER PARK 9700 17.9 -M * 35.3 -M *
LAPRELE CREEK 8320 -M .7 * -M 18.7 *
RENO HILL 8400 .3 2.3 14 28.7 24.9 116
ROACH 9700 2.8 5.3 53 28.0 30.7 92
SAND LAKE 10080 43.3 20.7 210 43.2 28.9 150
SOUTH PASS 9040 9.5 8.0 121 31.7 24.4 130
WINDY PEAK 7840 .0 .0 100* 21.4 16.2 133
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Basin wide percent of average 146 121
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 24.0 21.2 114
DIVIDE PEAK 8800 .0 2.0 0* 33.2 31.2 107
OLD BATTLE 10000 30.7 18.9 164 50.4 40.0 127
SANDSTONE RS 8150 .0 .0 100* 27.5 26.2 105
WHISKEY PARK 8950 19.4 7.8 248 40.3 38.5 105
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Basin wide percent of average 175* 112
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .3 .0 * 21.7 20.9 104
BLIND BULL SUM 8650 24.4 13.9 177 30.5 29.9 103
EAST RIM DIVIDE 7930 -M 4.5 * -M 19.5 *
ELKHART PARK G.S. 9400 4.1 2.9 142 23.2 20.5 114
GROS VENTRE SUMMIT 8775 4.5 .0 * 21.9 20.4 107
KENDALL R.S. 7740 .2 .0 * 21.9 20.0 110
LOOMIS PARK 8240 -M .0 * -M 24.2 *
NEW FORK LAKE 8340 .0 .0 100* 18.5 18.7 100
SNIDER BASIN 8250 .2 .0 * 24.4 19.5 125
SPRING CREEK DIVIDE 9000 22.9 12.4 186 38.2 34.3 112
TRIPLE PEAK 8500 10.5 9.5 110 40.8 39.3 104
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Basin wide percent of average 161* 108
LOWER GREEN RIVER
HAMS FORK 7840 .2 .0 * 19.9 17.2 116
HEWINTA 9500 .0 .0 100* 21.7 19.4 112
HICKERSON PARK 9150 .3 .0 * 16.5 15.6 106
HOLE-IN-ROCK 9150 .0 .2 0* 17.0 15.6 109
INDIAN CREEK 9425 25.4 11.2 227 36.5 32.8 112
KELLEY R.S. 8180 .2 .0 * 26.7 24.2 110
STEEL CREEK PARK 10100 -M 9.1 * -M 20.4 *
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Basin wide percent of average 225* 111
UPPER BEAR RIVER
BUG LAKE 7950 .3 1.5 14* 31.2 25.2 124
HAYDEN FORK 9400 .5 .0 * 30.9 26.7 116
KELLEY R.S. 8180 .2 .0 * 26.7 24.2 110
LILY LAKE 9050 .0 .7 0* 27.2 21.5 127
MONTE CRISTO 8960 20.0 7.8 260 40.3 34.2 119
SALT RIVER SUMMIT 7600 .3 .0 * 24.9 21.7 115
TRIAL LAKE 9960 14.7 9.2 160 33.8 32.2 106
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Basin wide percent of average 183* 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.