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: AUGUST 13 , 1997
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 -M .0 * 49.9 31.4 159
COTTONWOOD CREEK 7600 .0 .0 100* 49.3 34.9 141
GRANITE CREEK 6770 .1 .0 * 43.4 34.7 125
GRASSY LAKE 7265 .0 .0 100* 73.7 52.0 142
GROS VENTRE SUMMIT 8775 .0 .0 100* 32.1 23.5 137
LEWIS LAKE DIVIDE 7860 .0 .0 100* 73.6 52.9 139
PHILLIPS BENCH 8200 .1 .0 * 62.3 41.7 149
SALT RIVER SUMMIT 7600 .1 .0 * 35.5 24.9 143
SNAKE RIVER STATION 6920 .0 .0 100* 51.6 36.5 141
SPRING CREEK DIVIDE 9000 .0 .0 100* 44.9 37.5 120
THUMB DIVIDE 7980 .1 .0 * 46.7 29.5 158
TOGWOTEE PASS 9580 .1 .0 * 53.6 39.7 135
TWO OCEAN PLATEAU 9360 .0 .0 100* 61.5 43.3 142
WILLOW CREEK 8450 .0 .0 100* 68.0 44.8 152
----- -----
Basin wide percent of average * 141
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .3 .0 * 42.3 30.3 140
BLACK BEAR 7950 -M .0 * 85.7 57.4 149
CANYON 7940 .0 .0 100* 34.9 24.1 145
FISHER CREEK 9100 .0 .0 100* 68.8 54.6 126
MADISON PLATEAU 7750 .1 .0 * 53.4 38.9 137
NORTHEAST ENTRANCE 7350 .0 .0 100* 32.7 21.8 150
PARKER PEAK 9400 .0 .0 100* 36.2 27.9 130
SYLVAN LAKE 8420 .0 .0 100* 48.5 33.0 147
THUMB DIVIDE 7980 .1 .0 * 46.7 29.5 158
TWO OCEAN PLATEAU 9360 .0 .0 100* 61.5 43.3 142
WHISKEY CREEK 6800 .1 .0 * 41.6 33.2 125
WHITE MILL 8700 .0 .0 100* 53.7 43.1 125
WOLVERINE 7650 .0 .0 100* 25.6 23.5 109
----- -----
Basin wide percent of average * 137
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100* 38.6 26.5 146
CHRISTINA LAKE 9980 -M .0 * -M 28.2 *
COLD SPRINGS 9630 .0 .0 100* -M 20.3 *
HOBBS PARK 10100 .0 .0 100* 26.2 25.5 103
LITTLE WARM 9620 .0 .0 100* 32.9 23.8 138
SOUTH PASS 9040 1.4 .0 * 31.8 28.5 112
ST. LAWRENCE ALT 8620 .0 .0 100* 23.4 18.7 125
TOGWOTEE PASS 9580 .1 .0 * 53.6 39.7 135
TOWNSEND CREEK 8700 .0 .0 100* 25.4 22.8 111
----- -----
Basin wide percent of average * 125
BIGHORN BASIN
BALD MTN. 9375 .1 .0 * 35.9 30.0 120
BEAR TRAP MEADOW 7900 .1 .0 * 23.6 18.2 130
BLACKWATER 9780 .2 .0 * 46.0 32.1 143
BONE SPRINGS DIV 9350 .2 .0 * 31.9 28.2 113
EVENING STAR 9200 .1 .0 * 56.0 39.0 144
GRAVE SPRINGS 8550 .0 -M * 23.6 21.2 111
KIRWIN 9550 -M .0 * -M 22.4 *
LOST CREEK 8080 -M .0 * -M 23.6 *
MARQUETTE 8760 .0 .0 100* 28.5 22.8 125
MIDDLE POWDER 7760 .1 .0 * 31.0 23.1 134
OWL CREEK 8975 .0 .0 100* 18.2 14.9 122
POWDER RIVER PASS 9480 .0 .0 100* 33.6 22.9 147
SHELL CREEK 9580 .1 .0 * 27.7 25.4 109
SYLVAN LAKE 8420 .0 .0 100* 48.5 33.0 147
SYLVAN ROAD 8120 .0 .0 100* 37.9 28.3 134
TIMBER CREEK 7950 .2 .0 * 21.7 18.2 119
YOUNTS PEAK 8350 .0 .0 100* 40.5 27.7 146
----- -----
Basin wide percent of average * 131
SHOSHONE RIVER
BLACKWATER 9780 .2 .0 * 46.0 32.1 143
EVENING STAR 9200 .1 .0 * 56.0 39.0 144
KIRWIN 9550 -M .0 * -M 22.4 *
MARQUETTE 8760 .0 .0 100* 28.5 22.8 125
SYLVAN LAKE 8420 .0 .0 100* 48.5 33.0 147
SYLVAN ROAD 8120 .0 .0 100* 37.9 28.3 134
YOUNTS PEAK 8350 .0 .0 100* 40.5 27.7 146
----- -----
Basin wide percent of average * 141
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .1 .0 * 23.6 18.2 130
BONE SPRINGS DIV 9350 .2 .0 * 31.9 28.2 113
BURGESS JUNCTION 7880 .2 .0 * 26.9 22.5 120
CLOUD PEAK RESERVOIR 9860 .0 .0 100* 34.4 27.0 127
DOME LAKE 8880 .0 .0 100* 30.6 24.9 123
GRAVE SPRINGS 8550 .0 -M * 23.6 21.2 111
HANSEN SAWMILL 8760 .0 .0 100* 25.0 18.0 139
LOST CREEK 8080 -M .0 * -M 23.6 *
MIDDLE POWDER 7760 .1 .0 * 31.0 23.1 134
POWDER RIVER PASS 9480 .0 .0 100* 33.6 22.9 147
SUCKER CREEK 8880 .0 .0 100* 31.1 25.9 120
TIE CREEK 6870 .1 -M * 31.3 21.6 145
----- -----
Basin wide percent of average * 127
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 30.5 25.3 121
NORTH RAPID CREEK 6130 .0 -M * 34.8 -M *
WARREN PEAK 6520 .0 .0 100* 34.1 19.3 177
----- -----
Basin wide percent of average * 145
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 46.2 34.7 133
DIVIDE PEAK 8800 .0 .0 100* 35.9 34.2 105
ELK RIVER 8700 .1 .0 * 37.6 28.3 133
JOE WRIGHT 10120 .0 .0 100* 44.1 41.4 107
NORTH FRENCH CREEK 10100 1.1 .0 * 45.0 36.9 122
OLD BATTLE 10000 .0 .0 100* 54.2 44.4 122
SOUTH BRUSH CREEK 8400 .0 .0 100* 28.4 28.1 101
TOWER 10500 .0 .0 100* 69.6 54.5 128
WEBBER SPRINGS 9200 .0 .0 100* 47.2 37.9 125
WILLOW CREEK PASS 9540 .0 .0 100* 28.5 23.0 124
----- -----
Basin wide percent of average * 120
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 .0 100* 43.0 31.4 137
CASPER MTN. 7900 .0 .0 100* 32.1 27.6 116
CHRISTINA LAKE 9980 -M .0 * -M 28.2 *
DEADMAN HILL 10220 .0 .0 100* 31.4 29.8 105
LAPRELE CREEK 8320 .0 .0 100* 25.0 22.8 110
RENO HILL 8400 .1 .0 * 31.9 28.8 111
ROACH 9700 .0 .0 100* 34.4 34.9 99
SAND LAKE 10080 .0 .0 100* 45.0 32.6 138
SOUTH PASS 9040 1.4 .0 * 31.8 28.5 112
WINDY PEAK 7840 .1 .0 * 22.8 20.3 112
----- -----
Basin wide percent of average * 116
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .3 .0 * 19.4 23.4 83
DIVIDE PEAK 8800 .0 .0 100* 35.9 34.2 105
OLD BATTLE 10000 .0 .0 100* 54.2 44.4 122
SANDSTONE RS 8150 .0 .0 100* 31.3 29.6 106
WHISKEY PARK 8950 .0 .0 100* 48.4 42.0 115
----- -----
Basin wide percent of average * 109
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .1 .0 * 24.6 24.0 103
BLIND BULL SUM 8650 .0 .0 100* 47.9 32.7 146
EAST RIM DIVIDE 7930 .2 .0 * 27.2 22.4 121
ELKHART PARK G.S. 9400 .0 .0 100* 30.0 23.6 127
GROS VENTRE SUMMIT 8775 .0 .0 100* 32.1 23.5 137
KENDALL R.S. 7740 .1 .0 * 33.6 22.9 147
LOOMIS PARK 8240 .1 .0 * 39.5 27.8 142
NEW FORK LAKE 8340 .0 .0 100* 22.5 21.4 105
SNIDER BASIN 8250 .0 .0 100* 26.1 22.4 117
SPRING CREEK DIVIDE 9000 .0 .0 100* 44.9 37.5 120
TRIPLE PEAK 8500 .0 .0 100* 53.3 43.7 122
----- -----
Basin wide percent of average * 126
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 24.2 19.7 123
HEWINTA 9500 .1 .0 * 25.0 23.4 107
HICKERSON PARK 9150 .0 .0 100* 18.3 19.6 93
HOLE-IN-ROCK 9150 .1 .0 * 19.1 19.6 97
INDIAN CREEK 9425 .0 .0 100* 42.9 36.3 118
KELLEY R.S. 8180 .0 .0 100* 40.5 27.7 146
STEEL CREEK PARK 10100 -M .0 * 26.8 27.0 99
----- -----
Basin wide percent of average * 114
UPPER BEAR RIVER
BUG LAKE 7950 .2 .0 * 41.8 27.4 153
HAYDEN FORK 9400 .0 .0 100* 35.3 30.7 115
KELLEY R.S. 8180 .0 .0 100* 40.5 27.7 146
LILY LAKE 9050 .0 .0 100* 29.8 25.2 118
MONTE CRISTO 8960 .0 .0 100* 47.8 37.3 128
SALT RIVER SUMMIT 7600 .1 .0 * 35.5 24.9 143
TRIAL LAKE 9960 .2 .0 * 46.4 36.3 128
----- -----
Basin wide percent of average * 132
-----------------------------------------------------------------------------
-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.
----------------------------------------------------------------------------
-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.