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 TUESDAY: JUNE 15 , 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* 40.2 32.0 126
GRANITE CREEK 6770 .0 .2 0* 31.9 30.9 103
GRASSY LAKE 7265 8.0 .2 7900* 55.2 47.7 116
GROS VENTRE SUMMIT 8775 .0 .0 100* 22.9 20.9 110
LEWIS LAKE DIVIDE 7860 13.7 .2 13700* 50.4 48.4 105
PHILLIPS BENCH 8200 11.7 .2 11700* 41.3 38.2 109
SALT RIVER SUMMIT 7600 .2 .0 * 25.4 22.2 114
SNAKE RIVER STATION 6920 .0 .0 100* 34.3 33.4 103
SPRING CREEK DIVIDE 9000 15.2 .2 15200* 38.8 34.8 112
THUMB DIVIDE 7980 -M .0 * -M 26.9 *
TOGWOTEE PASS 9580 -M 13.5 * 38.7 36.3 107
TWO OCEAN PLATEAU 9360 30.7 15.7 195 41.2 39.7 104
WILLOW CREEK 8450 4.0 .2 4000* 53.7 41.2 131
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Basin wide percent of average 510* 112
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 18.0 9.6 188 30.7 26.2 117
BLACK BEAR 7950 40.8 14.0 291 65.0 52.4 125
CANYON 7940 -M .3 * 25.2 20.2 125
FISHER CREEK 9100 33.8 21.4 158 47.8 48.9 98
MADISON PLATEAU 7750 -M .5 * 42.3 34.8 122
NORTHEAST ENTRANCE 7350 .0 .2 0* 20.4 17.7 115
PARKER PEAK 9400 12.0 11.4 107 -M 23.0 *
SYLVAN LAKE 8420 12.1 6.1 199 -M 27.9 *
THUMB DIVIDE 7980 -M .0 * -M 26.9 *
TWO OCEAN PLATEAU 9360 30.7 15.7 195 41.2 39.7 104
WHISKEY CREEK 6800 .0 .2 0* 34.3 29.2 118
WHITE MILL 8700 19.4 11.0 177 33.3 38.2 88
WOLVERINE 7650 .0 .0 100* 17.4 19.4 91
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Basin wide percent of average 187 110
WIND RIVER
BURROUGHS CREEK 8750 2.0 .2 2000* 26.5 23.4 114
COLD SPRINGS 9630 .3 .2 300* 26.7 17.2 156
DEER PARK 9700 12.1 -M * 36.5 -M *
HOBBS PARK 10100 15.5 3.7 428 31.7 22.0 144
LITTLE WARM 9620 -M .2 * 27.5 20.2 137
SOUTH PASS 9040 -M 4.0 * 32.8 25.2 131
ST. LAWRENCE ALT 8620 .0 .2 0* 23.4 15.7 150
TOGWOTEE PASS 9580 -M 13.5 * 38.7 36.3 107
TOWNSEND CREEK 8700 .2 .2 100* 27.7 19.7 141
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Basin wide percent of average 446* 131
BIGHORN BASIN
BALD MTN. 9375 13.7 9.5 145 28.9 26.5 109
BEAR TRAP MEADOW 7900 .0 .0 100* 20.4 15.1 135
BLACKWATER 9780 29.0 8.0 363 34.3 25.9 133
BONE SPRINGS DIV 9350 5.5 2.7 212 29.2 23.7 123
EVENING STAR 9200 24.0 15.0 161 44.7 32.0 140
GRAVE SPRINGS 8550 .2 .2 100* 21.2 17.7 120
KIRWIN 9550 4.5 1.0 441* 24.4 17.4 142
MARQUETTE 8760 4.6 .0 512* 24.9 18.7 134
MIDDLE POWDER 7760 .0 .2 0* 22.9 19.7 117
OWL CREEK 8975 .0 .2 0* 19.2 11.6 166
POWDER RIVER PASS 9480 .2 .0 * 25.4 19.7 130
SHELL CREEK 9580 3.8 4.0 95 24.7 21.4 116
SYLVAN LAKE 8420 12.1 6.1 199 -M 27.9 *
SYLVAN ROAD 8120 -M .2 * -M 23.4 *
TIMBER CREEK 7950 .0 .2 0* 20.4 14.9 138
YOUNTS PEAK 8350 2.3 2.0 111 25.7 23.5 110
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Basin wide percent of average 201* 128
SHOSHONE RIVER
BLACKWATER 9780 29.0 8.0 363 34.3 25.9 133
EVENING STAR 9200 24.0 15.0 161 44.7 32.0 140
KIRWIN 9550 4.5 1.0 441* 24.4 17.4 142
MARQUETTE 8760 4.6 .0 512* 24.9 18.7 134
SYLVAN LAKE 8420 12.1 6.1 199 -M 27.9 *
SYLVAN ROAD 8120 -M .2 * -M 23.4 *
YOUNTS PEAK 8350 2.3 2.0 111 25.7 23.5 110
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Basin wide percent of average 232 132
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 20.4 15.1 135
BIG GOOSE 7990 .0 -M * 21.7 -M *
BONE SPRINGS DIV 9350 5.5 2.7 212 29.2 23.7 123
BURGESS JUNCTION 7880 .0 .2 0* 21.4 18.9 113
CLOUD PEAK RESERVOIR 9860 2.3 3.3 70 28.7 22.9 126
DOME LAKE 8880 -M .0 * 20.4 21.4 95
GRAVE SPRINGS 8550 .2 .2 100* 21.2 17.7 120
HANSEN SAWMILL 8760 .2 .2 100* 19.9 14.5 137
MIDDLE POWDER 7760 .0 .2 0* 22.9 19.7 117
POWDER RIVER PASS 9480 .2 .0 * 25.4 19.7 130
SUCKER CREEK 8880 .2 .3 50* 25.9 22.0 118
TIE CREEK 6870 .2 -M * 22.2 18.2 123
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Basin wide percent of average 125* 121
BELLE FOURCHE
BLIND PARK 6890 .2 .0 * 26.7 20.2 133
NORTH RAPID CREEK 6130 .0 -M * 24.9 -M *
WARREN PEAK 6520 .0 .2 0* -M 15.0 *
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Basin wide percent of average 0* 133*
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .2 0* 31.7 31.7 100
DIVIDE PEAK 8800 .0 .5 0* 35.3 31.5 112
ELK RIVER 8700 .0 .2 0* 31.7 25.4 125
JOE WRIGHT 10120 7.5 7.3 103 37.5 36.2 104
NORTH FRENCH CREEK 10100 25.0 13.0 194 43.0 33.3 130
OLD BATTLE 10000 21.4 9.4 231 51.8 40.8 128
SOUTH BRUSH CREEK 8400 7.0 .2 7000* 29.7 24.5 121
TOWER 10500 33.2 27.5 121 53.3 50.5 106
WEBBER SPRINGS 9200 .0 2.2 0* 38.2 34.8 110
WILLOW CREEK PASS 9540 .0 .2 0* 19.9 19.4 104
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Basin wide percent of average 157* 114
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 8.1 4.1 198 35.8 28.0 128
CASPER MTN. 7900 .3 1.0 21* 27.0 24.2 112
DEADMAN HILL 10220 .0 3.9 0 26.7 25.7 105
DEER PARK 9700 12.1 -M * 36.5 -M *
LAPRELE CREEK 8320 .0 .2 0* 26.7 19.4 139
RENO HILL 8400 .0 .9 0* 29.9 25.5 117
ROACH 9700 .0 1.2 0* 29.2 31.2 94
SAND LAKE 10080 32.5 13.5 241 44.3 29.7 150
SOUTH PASS 9040 -M 4.0 * 32.8 25.2 131
WINDY PEAK 7840 .0 .0 100* 22.9 16.9 136
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Basin wide percent of average 166* 123
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .2 .0 * 24.9 21.4 117
DIVIDE PEAK 8800 .0 .5 0* 35.3 31.5 112
OLD BATTLE 10000 21.4 9.4 231 51.8 40.8 128
SANDSTONE RS 8150 .0 .0 100* 28.7 26.7 108
WHISKEY PARK 8950 -M .3 * 41.3 38.9 107
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Basin wide percent of average 221* 115
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.4 21.4 105
BLIND BULL SUM 8650 14.5 9.0 162 31.4 30.4 104
EAST RIM DIVIDE 7930 .0 .0 100* 20.9 20.0 105
ELKHART PARK G.S. 9400 .0 .2 0* 23.7 21.0 113
GROS VENTRE SUMMIT 8775 .0 .0 100* 22.9 20.9 110
KENDALL R.S. 7740 .0 .0 100* 22.0 20.5 108
LOOMIS PARK 8240 .0 .0 100* 27.4 24.7 111
NEW FORK LAKE 8340 .0 .0 100* 20.5 19.0 108
SNIDER BASIN 8250 .0 .0 100* 24.9 20.0 125
SPRING CREEK DIVIDE 9000 15.2 .2 15200* 38.8 34.8 112
TRIPLE PEAK 8500 .5 .2 500* 41.5 40.0 104
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Basin wide percent of average 325* 109
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 20.4 17.7 116
HEWINTA 9500 .0 .0 100* 22.2 20.0 111
HICKERSON PARK 9150 .2 .0 * 17.0 16.2 105
HOLE-IN-ROCK 9150 .0 .2 0* 17.7 16.2 110
INDIAN CREEK 9425 18.2 .2 18101* 37.4 33.3 113
KELLEY R.S. 8180 .0 .0 100* 27.2 24.7 110
STEEL CREEK PARK 10100 11.1 3.8 300 26.4 21.5 123
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Basin wide percent of average 749* 113
UPPER BEAR RIVER
BUG LAKE 7950 .2 .2 100* 31.9 25.7 125
HAYDEN FORK 9400 .0 .0 100* 31.0 27.2 114
KELLEY R.S. 8180 .0 .0 100* 27.2 24.7 110
LILY LAKE 9050 .0 .2 0* 27.7 22.2 125
MONTE CRISTO 8960 6.5 3.9 165 41.3 34.8 120
SALT RIVER SUMMIT 7600 .2 .0 * 25.4 22.2 114
TRIAL LAKE 9960 5.6 4.1 137 34.2 32.8 105
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Basin wide percent of average 148* 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.