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 WEDNESDAY: JUNE 2 , 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* 31.9 28.0 114
COTTONWOOD CREEK 7600 8.0 .0 * 37.5 31.2 121
GRANITE CREEK 6770 1.5 1.7 94* 28.7 29.9 96
GRASSY LAKE 7265 22.4 11.2 200 51.7 46.4 112
GROS VENTRE SUMMIT 8775 6.5 .0 * 21.0 20.2 104
LEWIS LAKE DIVIDE 7860 26.2 18.4 142 47.9 47.3 102
PHILLIPS BENCH 8200 20.2 16.4 123 38.4 37.3 104
SALT RIVER SUMMIT 7600 .3 .0 * 23.7 21.5 111
SNAKE RIVER STATION 6920 .0 .0 100* 32.0 32.7 99
SPRING CREEK DIVIDE 9000 24.2 17.7 137 37.0 33.9 110
THUMB DIVIDE 7980 2.4 .0 * 29.2 26.2 112
TOGWOTEE PASS 9580 -M 22.9 * 36.8 35.4 104
TWO OCEAN PLATEAU 9360 34.5 22.2 157 38.8 38.5 101
WILLOW CREEK 8450 17.4 17.9 98 50.8 40.2 127
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Basin wide percent of average 139* 108
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 22.7 18.7 121 29.0 25.2 116
BLACK BEAR 7950 49.0 26.7 185 62.3 50.8 123
CANYON 7940 .5 1.4 29* 23.9 19.0 126
FISHER CREEK 9100 37.3 31.0 121 45.5 47.3 97
MADISON PLATEAU 7750 -M 7.0 * 40.8 33.4 122
NORTHEAST ENTRANCE 7350 .0 .3 0* 19.0 16.7 115
PARKER PEAK 9400 17.4 18.2 97 -M 21.7 *
SYLVAN LAKE 8420 19.2 13.6 141 37.0 26.5 140
THUMB DIVIDE 7980 2.4 .0 * 29.2 26.2 112
TWO OCEAN PLATEAU 9360 34.5 22.2 157 38.8 38.5 101
WHISKEY CREEK 6800 5.0 1.2 417* 31.5 27.9 114
WHITE MILL 8700 24.7 18.9 132 31.5 36.8 86
WOLVERINE 7650 .0 .0 100* 16.2 18.2 90
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Basin wide percent of average 139 111
WIND RIVER
BURROUGHS CREEK 8750 9.5 1.9 495 25.2 22.7 112
COLD SPRINGS 9630 7.8 .3 2601* 25.9 16.2 160
DEER PARK 9700 18.9 -M * 34.4 -M *
HOBBS PARK 10100 21.4 9.0 240 30.5 21.0 146
LITTLE WARM 9620 7.8 .7 1101* 26.4 19.4 136
SOUTH PASS 9040 13.4 9.6 139 31.4 24.2 130
ST. LAWRENCE ALT 8620 .0 .2 0* 22.4 15.0 151
TOGWOTEE PASS 9580 -M 22.9 * 36.8 35.4 104
TOWNSEND CREEK 8700 3.7 1.7 212 26.9 18.7 144
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Basin wide percent of average 272* 131
BIGHORN BASIN
BALD MTN. 9375 21.0 17.9 118 26.9 25.4 106
BEAR TRAP MEADOW 7900 .0 .0 100* 19.4 14.0 139
BLACKWATER 9780 31.2 18.2 173 32.3 24.2 134
BONE SPRINGS DIV 9350 15.4 7.8 197 26.9 22.4 121
EVENING STAR 9200 30.4 24.9 123 42.7 30.2 142
GRAVE SPRINGS 8550 .0 1.9 0 19.9 16.4 122
KIRWIN 9550 11.6 4.8 242 23.2 16.4 142
MARQUETTE 8760 12.7 3.9 326 22.7 17.4 131
MIDDLE POWDER 7760 2.5 2.4 105 23.0 18.4 126
OWL CREEK 8975 .0 .2 0* 17.5 10.9 163
POWDER RIVER PASS 9480 2.3 1.4 177 23.5 18.4 129
SHELL CREEK 9580 11.5 10.7 108 21.9 20.0 110
SYLVAN LAKE 8420 19.2 13.6 141 37.0 26.5 140
SYLVAN ROAD 8120 -M 1.0 * -M 22.0 *
TIMBER CREEK 7950 1.2 .3 551* 19.7 14.0 142
YOUNTS PEAK 8350 13.5 8.6 157 24.0 22.4 108
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Basin wide percent of average 149 129
SHOSHONE RIVER
BLACKWATER 9780 31.2 18.2 173 32.3 24.2 134
EVENING STAR 9200 30.4 24.9 123 42.7 30.2 142
KIRWIN 9550 11.6 4.8 242 23.2 16.4 142
MARQUETTE 8760 12.7 3.9 326 22.7 17.4 131
SYLVAN LAKE 8420 19.2 13.6 141 37.0 26.5 140
SYLVAN ROAD 8120 -M 1.0 * -M 22.0 *
YOUNTS PEAK 8350 13.5 8.6 157 24.0 22.4 108
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Basin wide percent of average 161 133
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 19.4 14.0 139
BIG GOOSE 7990 -M -M * 20.2 -M *
BONE SPRINGS DIV 9350 15.4 7.8 197 26.9 22.4 121
BURGESS JUNCTION 7880 1.4 2.3 64 19.2 17.9 108
CLOUD PEAK RESERVOIR 9860 14.2 8.0 178 26.5 21.5 124
DOME LAKE 8880 -M 3.8 * 18.7 20.4 93
GRAVE SPRINGS 8550 .0 1.9 0 19.9 16.4 122
HANSEN SAWMILL 8760 .0 .9 0* 18.4 13.2 139
MIDDLE POWDER 7760 2.5 2.4 105 23.0 18.4 126
POWDER RIVER PASS 9480 2.3 1.4 177 23.5 18.4 129
SUCKER CREEK 8880 5.3 3.8 137 23.7 20.7 115
TIE CREEK 6870 .0 -M * 19.9 17.2 117
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Basin wide percent of average 146 120
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 21.7 18.4 118
NORTH RAPID CREEK 6130 .0 -M * 18.9 -M *
WARREN PEAK 6520 .0 .2 0* -M 13.5 *
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Basin wide percent of average 0* 118*
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 2.7 0 30.7 31.0 100
DIVIDE PEAK 8800 .0 2.8 0 33.2 30.9 108
ELK RIVER 8700 .0 .3 0* 31.0 24.7 127
JOE WRIGHT 10120 16.4 16.4 100 35.8 35.0 103
NORTH FRENCH CREEK 10100 32.8 19.7 166 40.4 32.4 125
OLD BATTLE 10000 31.9 23.0 139 50.2 39.8 127
SOUTH BRUSH CREEK 8400 6.8 1.0 680* 27.7 23.4 118
TOWER 10500 44.7 43.3 104 51.9 49.5 105
WEBBER SPRINGS 9200 4.0 9.9 41 36.3 33.8 108
WILLOW CREEK PASS 9540 1.4 2.2 67 18.4 18.4 100
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Basin wide percent of average 114 112
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 16.9 12.2 138 34.7 27.2 128
CASPER MTN. 7900 .3 3.4 6 24.7 23.0 107
DEADMAN HILL 10220 12.0 9.9 122 26.0 24.7 106
DEER PARK 9700 18.9 -M * 34.4 -M *
LAPRELE CREEK 8320 .0 1.0 0* 23.5 18.2 130
RENO HILL 8400 .0 2.8 0 27.7 24.4 114
ROACH 9700 -M 7.1 * 27.5 30.4 91
SAND LAKE 10080 46.3 23.9 194 41.3 28.5 145
SOUTH PASS 9040 13.4 9.6 139 31.4 24.2 130
WINDY PEAK 7840 .0 .0 100* 20.9 15.9 133
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Basin wide percent of average 141 120
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 24.0 21.0 115
DIVIDE PEAK 8800 .0 2.8 0 33.2 30.9 108
OLD BATTLE 10000 31.9 23.0 139 50.2 39.8 127
SANDSTONE RS 8150 .0 .0 100* 27.7 26.2 106
WHISKEY PARK 8950 26.0 11.2 233 40.2 38.4 105
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Basin wide percent of average 157 113
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .3 .0 * 20.4 20.7 99
BLIND BULL SUM 8650 26.7 16.0 168 29.4 29.7 99
EAST RIM DIVIDE 7930 3.9 6.5 61 19.0 19.4 99
ELKHART PARK G.S. 9400 4.0 4.1 98 21.0 20.4 104
GROS VENTRE SUMMIT 8775 6.5 .0 * 21.0 20.2 104
KENDALL R.S. 7740 .2 .0 * 20.9 19.9 106
LOOMIS PARK 8240 -M .0 * 25.9 23.9 108
NEW FORK LAKE 8340 .0 .0 100* 18.2 18.4 99
SNIDER BASIN 8250 .2 .0 * 23.4 19.4 122
SPRING CREEK DIVIDE 9000 24.2 17.7 137 37.0 33.9 110
TRIPLE PEAK 8500 13.6 13.7 100 39.9 38.9 103
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Basin wide percent of average 126* 105
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 19.0 17.0 112
HEWINTA 9500 .0 .0 100* 20.9 19.2 109
HICKERSON PARK 9150 .2 .0 * 16.2 15.4 106
HOLE-IN-ROCK 9150 .0 .2 0* 16.2 15.4 106
INDIAN CREEK 9425 26.4 16.2 163 35.4 32.4 110
KELLEY R.S. 8180 .3 .0 * 25.4 23.9 107
STEEL CREEK PARK 10100 15.9 11.5 138 24.9 20.0 125
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Basin wide percent of average 152* 111
UPPER BEAR RIVER
BUG LAKE 7950 3.3 2.3 146 30.0 25.0 121
HAYDEN FORK 9400 .3 .0 * 29.7 26.4 113
KELLEY R.S. 8180 .3 .0 * 25.4 23.9 107
LILY LAKE 9050 .0 1.0 0* 26.4 21.2 125
MONTE CRISTO 8960 21.7 9.5 230 38.8 33.8 115
SALT RIVER SUMMIT 7600 .3 .0 * 23.7 21.5 111
TRIAL LAKE 9960 15.0 11.5 130 32.4 31.9 102
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Basin wide percent of average 165* 113
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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.