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 16 , 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 28.9 119
COTTONWOOD CREEK 7600 .0 .0 100* 40.3 32.2 126
GRANITE CREEK 6770 .0 .0 100* 32.0 31.0 104
GRASSY LAKE 7265 6.1 .0 * 55.2 47.8 116
GROS VENTRE SUMMIT 8775 .0 .0 100* 22.9 21.0 110
LEWIS LAKE DIVIDE 7860 12.2 .0 * 50.4 48.5 104
PHILLIPS BENCH 8200 10.4 .0 * 41.3 38.3 108
SALT RIVER SUMMIT 7600 .3 .0 * 25.9 22.4 116
SNAKE RIVER STATION 6920 .0 .0 100* 34.3 33.5 103
SPRING CREEK DIVIDE 9000 14.4 .0 * 39.3 34.8 113
THUMB DIVIDE 7980 .0 .0 100* 30.9 27.0 115
TOGWOTEE PASS 9580 -M 12.6 * 38.8 36.4 107
TWO OCEAN PLATEAU 9360 29.9 14.9 202 41.2 39.8 104
WILLOW CREEK 8450 2.3 .0 * 53.7 41.3 131
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Basin wide percent of average 202* 112
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 16.9 9.1 186 30.5 26.4 116
BLACK BEAR 7950 38.8 13.2 294 65.0 52.7 124
CANYON 7940 .0 .3 0* 25.4 20.4 125
FISHER CREEK 9100 33.8 20.5 165 47.9 49.0 98
MADISON PLATEAU 7750 -M .5 * 42.3 34.9 122
NORTHEAST ENTRANCE 7350 .0 .0 100* 20.4 17.9 115
PARKER PEAK 9400 10.6 10.9 99 -M 23.2 *
SYLVAN LAKE 8420 11.7 5.8 206 -M 28.0 *
THUMB DIVIDE 7980 .0 .0 100* 30.9 27.0 115
TWO OCEAN PLATEAU 9360 29.9 14.9 202 41.2 39.8 104
WHISKEY CREEK 6800 .0 .0 100* 34.3 29.2 118
WHITE MILL 8700 18.5 10.5 178 33.3 38.3 87
WOLVERINE 7650 .0 .0 100* 17.4 19.4 90
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Basin wide percent of average 189 110
WIND RIVER
BURROUGHS CREEK 8750 1.9 .0 * 26.5 23.4 114
COLD SPRINGS 9630 .0 .0 100* 26.7 17.2 156
DEER PARK 9700 11.0 -M * 36.8 -M *
HOBBS PARK 10100 15.0 3.3 452 31.9 22.2 144
LITTLE WARM 9620 .0 .0 100* 27.7 20.4 136
SOUTH PASS 9040 -M 3.8 * 33.2 25.2 132
ST. LAWRENCE ALT 8620 .0 .0 100* 23.5 15.9 149
TOGWOTEE PASS 9580 -M 12.6 * 38.8 36.4 107
TOWNSEND CREEK 8700 .2 .0 * 28.4 19.9 144
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Basin wide percent of average 452* 132
BIGHORN BASIN
BALD MTN. 9375 13.5 9.0 151 28.9 26.7 109
BEAR TRAP MEADOW 7900 .0 .0 100* 20.4 15.2 134
BLACKWATER 9780 28.5 7.6 376 34.3 26.0 132
BONE SPRINGS DIV 9350 4.8 2.4 196 29.4 23.9 124
EVENING STAR 9200 22.9 14.5 158 44.7 32.2 139
GRAVE SPRINGS 8550 .0 .0 100* 21.2 17.9 120
KIRWIN 9550 3.8 .0 412* 24.4 17.4 141
MARQUETTE 8760 3.3 .9 400* 24.9 18.7 133
MIDDLE POWDER 7760 .0 .0 100* 22.9 19.7 117
OWL CREEK 8975 .0 .0 100* 19.4 11.7 165
POWDER RIVER PASS 9480 .0 .0 100* 25.9 19.7 131
SHELL CREEK 9580 3.3 3.8 87 24.7 21.5 115
SYLVAN LAKE 8420 11.7 5.8 206 -M 28.0 *
SYLVAN ROAD 8120 -M .0 * -M 23.4 *
TIMBER CREEK 7950 .0 .0 100* 20.4 15.0 137
YOUNTS PEAK 8350 1.7 1.9 85 25.7 23.7 109
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Basin wide percent of average 200* 127
SHOSHONE RIVER
BLACKWATER 9780 28.5 7.6 376 34.3 26.0 132
EVENING STAR 9200 22.9 14.5 158 44.7 32.2 139
KIRWIN 9550 3.8 .0 412* 24.4 17.4 141
MARQUETTE 8760 3.3 .9 400* 24.9 18.7 133
SYLVAN LAKE 8420 11.7 5.8 206 -M 28.0 *
SYLVAN ROAD 8120 -M .0 * -M 23.4 *
YOUNTS PEAK 8350 1.7 1.9 85 25.7 23.7 109
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Basin wide percent of average 229 131
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 20.4 15.2 134
BIG GOOSE 7990 .0 -M * 21.7 -M *
BONE SPRINGS DIV 9350 4.8 2.4 196 29.4 23.9 124
BURGESS JUNCTION 7880 .0 .0 100* 21.4 19.0 113
CLOUD PEAK RESERVOIR 9860 1.9 3.2 59 28.9 23.0 126
DOME LAKE 8880 -M .9 * 20.2 21.5 94
GRAVE SPRINGS 8550 .0 .0 100* 21.2 17.9 120
HANSEN SAWMILL 8760 .2 .0 * 20.0 14.6 137
MIDDLE POWDER 7760 .0 .0 100* 22.9 19.7 117
POWDER RIVER PASS 9480 .0 .0 100* 25.9 19.7 131
SUCKER CREEK 8880 .0 .2 0* 25.9 22.2 118
TIE CREEK 6870 .0 -M * 22.2 18.2 122
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Basin wide percent of average 117* 121
BELLE FOURCHE
BLIND PARK 6890 .2 .0 * 26.9 20.4 133
NORTH RAPID CREEK 6130 .0 -M * 24.9 -M *
WARREN PEAK 6520 .0 .0 100* -M 15.0 *
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Basin wide percent of average * 133*
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 32.3 31.7 102
DIVIDE PEAK 8800 .0 .3 0* 35.3 31.5 113
ELK RIVER 8700 .0 .0 100* 32.0 25.4 126
JOE WRIGHT 10120 7.3 7.0 105 38.3 36.3 106
NORTH FRENCH CREEK 10100 23.9 12.1 197 42.9 33.4 129
OLD BATTLE 10000 20.7 8.9 236 51.9 40.8 128
SOUTH BRUSH CREEK 8400 -M .0 * 29.5 24.7 120
TOWER 10500 32.7 26.4 124 53.4 50.7 106
WEBBER SPRINGS 9200 .0 1.9 0* 38.0 34.8 110
WILLOW CREEK PASS 9540 .0 .0 100* 20.2 19.4 104
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Basin wide percent of average 150* 114
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 7.3 3.8 193 35.7 28.2 127
CASPER MTN. 7900 .3 .0 23* 27.0 24.4 112
DEADMAN HILL 10220 .2 3.7 3 27.2 25.7 106
DEER PARK 9700 11.0 -M * 36.8 -M *
LAPRELE CREEK 8320 .0 .0 100* 26.7 19.4 138
RENO HILL 8400 .0 .7 0* 29.9 25.7 117
ROACH 9700 .0 1.2 0* 30.2 31.4 97
SAND LAKE 10080 32.2 12.9 251 44.4 29.7 150
SOUTH PASS 9040 -M 3.8 * 33.2 25.2 132
WINDY PEAK 7840 .0 .0 100* 22.7 16.9 135
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Basin wide percent of average 174* 123
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .2 .0 * 24.9 21.4 117
DIVIDE PEAK 8800 .0 .3 0* 35.3 31.5 113
OLD BATTLE 10000 20.7 8.9 236 51.9 40.8 128
SANDSTONE RS 8150 .0 .0 100* 28.7 26.7 108
WHISKEY PARK 8950 .7 .3 350* 41.4 39.0 107
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Basin wide percent of average 231* 115
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.7 21.4 106
BLIND BULL SUM 8650 13.1 8.5 156 31.4 30.4 104
EAST RIM DIVIDE 7930 .0 .0 100* 20.9 20.0 105
ELKHART PARK G.S. 9400 .0 .0 100* 23.9 21.2 113
GROS VENTRE SUMMIT 8775 .0 .0 100* 22.9 21.0 110
KENDALL R.S. 7740 .0 .0 100* 22.0 20.5 108
LOOMIS PARK 8240 .0 .0 100* 27.4 24.9 111
NEW FORK LAKE 8340 .0 .0 100* 20.7 19.2 108
SNIDER BASIN 8250 .0 .0 100* 25.2 20.0 127
SPRING CREEK DIVIDE 9000 14.4 .0 * 39.3 34.8 113
TRIPLE PEAK 8500 .0 .0 100* 41.7 40.2 104
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Basin wide percent of average 156* 109
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 20.4 17.7 116
HEWINTA 9500 .0 .0 100* 22.0 20.2 110
HICKERSON PARK 9150 .2 .0 * 17.2 16.4 105
HOLE-IN-ROCK 9150 .0 .0 100* 17.7 16.4 109
INDIAN CREEK 9425 17.2 .0 * 37.5 33.3 113
KELLEY R.S. 8180 .0 .0 100* 27.7 24.9 112
STEEL CREEK PARK 10100 10.0 3.4 295 26.4 21.7 123
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Basin wide percent of average 295* 113
UPPER BEAR RIVER
BUG LAKE 7950 .2 .0 * 31.9 25.7 125
HAYDEN FORK 9400 .0 .0 100* 31.2 27.4 114
KELLEY R.S. 8180 .0 .0 100* 27.7 24.9 112
LILY LAKE 9050 .0 .0 100* 27.7 22.2 125
MONTE CRISTO 8960 4.8 3.7 131 41.3 34.8 119
SALT RIVER SUMMIT 7600 .3 .0 * 25.9 22.4 116
TRIAL LAKE 9960 4.5 3.8 116 34.2 32.8 104
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Basin wide percent of average 123* 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.