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 9 , 1999
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 .0 .0 100* 34.2 28.4 121
COTTONWOOD CREEK 7600 3.2 .0 * 40.2 31.7 127
GRANITE CREEK 6770 1.5 .9 188* 31.2 30.5 103
GRASSY LAKE 7265 16.5 5.3 318 54.8 47.2 117
GROS VENTRE SUMMIT 8775 2.7 .0 * 22.5 20.7 110
LEWIS LAKE DIVIDE 7860 22.0 8.5 259 50.2 47.9 105
PHILLIPS BENCH 8200 17.2 7.6 227 41.2 37.8 110
SALT RIVER SUMMIT 7600 .3 .0 * 25.4 21.9 116
SNAKE RIVER STATION 6920 .0 .0 100* 34.3 33.2 104
SPRING CREEK DIVIDE 9000 21.5 8.2 263 38.8 34.3 114
THUMB DIVIDE 7980 .0 .0 100* 30.7 26.7 116
TOGWOTEE PASS 9580 -M 17.9 * 38.7 35.9 108
TWO OCEAN PLATEAU 9360 34.5 18.7 185 40.9 39.2 105
WILLOW CREEK 8450 12.5 8.4 151 53.5 40.8 132
----- -----
Basin wide percent of average 220* 113
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 20.9 13.9 151 30.2 25.7 118
BLACK BEAR 7950 46.7 19.9 236 65.0 51.8 126
CANYON 7940 .0 .9 0* 25.2 19.7 129
FISHER CREEK 9100 35.0 25.9 136 47.3 48.2 99
MADISON PLATEAU 7750 -M 3.5 * 42.3 34.3 124
NORTHEAST ENTRANCE 7350 .0 .2 0* 20.2 17.2 117
PARKER PEAK 9400 16.4 14.5 114 -M 22.4 *
SYLVAN LAKE 8420 14.9 9.5 156 -M 27.2 *
THUMB DIVIDE 7980 .0 .0 100* 30.7 26.7 116
TWO OCEAN PLATEAU 9360 34.5 18.7 185 40.9 39.2 105
WHISKEY CREEK 6800 .2 .6 17* 34.0 28.5 120
WHITE MILL 8700 23.0 14.6 158 32.8 37.5 88
WOLVERINE 7650 .0 .0 100* 17.2 18.9 91
----- -----
Basin wide percent of average 162 112
WIND RIVER
BURROUGHS CREEK 8750 5.8 .0 634* 26.7 23.0 116
COLD SPRINGS 9630 2.0 .3 1000* 26.7 16.7 160
DEER PARK 9700 16.5 -M * 36.3 -M *
HOBBS PARK 10100 18.7 6.0 312 31.4 21.5 147
LITTLE WARM 9620 3.0 .3 1001* 27.5 19.9 139
SOUTH PASS 9040 5.0 6.6 75 32.7 24.7 132
ST. LAWRENCE ALT 8620 .0 .2 0* 23.2 15.5 151
TOGWOTEE PASS 9580 -M 17.9 * 38.7 35.9 108
TOWNSEND CREEK 8700 .0 .9 0* 27.7 19.2 144
----- -----
Basin wide percent of average 231* 133
BIGHORN BASIN
BALD MTN. 9375 17.9 13.5 134 28.4 26.0 110
BEAR TRAP MEADOW 7900 .0 .0 100* 20.4 14.6 140
BLACKWATER 9780 30.7 12.6 243 34.2 25.2 136
BONE SPRINGS DIV 9350 11.1 5.0 223 28.7 23.0 125
EVENING STAR 9200 27.9 19.5 144 44.5 31.2 144
GRAVE SPRINGS 8550 .0 .0 0* 21.0 17.0 124
KIRWIN 9550 9.5 2.8 340 24.2 16.9 144
MARQUETTE 8760 9.0 2.3 387 24.4 18.0 136
MIDDLE POWDER 7760 .2 1.2 10* 22.9 19.0 121
OWL CREEK 8975 .0 .2 0* 18.7 11.4 166
POWDER RIVER PASS 9480 .3 .6 34* 25.2 19.0 133
SHELL CREEK 9580 8.9 7.1 124 24.5 20.9 118
SYLVAN LAKE 8420 14.9 9.5 156 -M 27.2 *
SYLVAN ROAD 8120 -M .5 * -M 22.7 *
TIMBER CREEK 7950 .0 .2 0* 20.2 14.5 141
YOUNTS PEAK 8350 9.1 5.1 179 25.5 23.0 111
----- -----
Basin wide percent of average 174 130
SHOSHONE RIVER
BLACKWATER 9780 30.7 12.6 243 34.2 25.2 136
EVENING STAR 9200 27.9 19.5 144 44.5 31.2 144
KIRWIN 9550 9.5 2.8 340 24.2 16.9 144
MARQUETTE 8760 9.0 2.3 387 24.4 18.0 136
SYLVAN LAKE 8420 14.9 9.5 156 -M 27.2 *
SYLVAN ROAD 8120 -M .5 * -M 22.7 *
YOUNTS PEAK 8350 9.1 5.1 179 25.5 23.0 111
----- -----
Basin wide percent of average 195 134
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 20.4 14.6 140
BIG GOOSE 7990 .0 -M * 21.4 -M *
BONE SPRINGS DIV 9350 11.1 5.0 223 28.7 23.0 125
BURGESS JUNCTION 7880 .0 1.0 0* 20.9 18.4 114
CLOUD PEAK RESERVOIR 9860 9.4 5.5 173 28.7 22.2 129
DOME LAKE 8880 -M 2.3 * 20.4 20.9 98
GRAVE SPRINGS 8550 .0 .0 0* 21.0 17.0 124
HANSEN SAWMILL 8760 .0 .5 0* 19.7 14.0 142
MIDDLE POWDER 7760 .2 1.2 10* 22.9 19.0 121
POWDER RIVER PASS 9480 .3 .6 34* 25.2 19.0 133
SUCKER CREEK 8880 .2 1.9 6 25.2 21.4 118
TIE CREEK 6870 .0 -M * 21.7 17.7 123
----- -----
Basin wide percent of average 129* 123
BELLE FOURCHE
BLIND PARK 6890 .2 .0 * 23.7 19.4 123
NORTH RAPID CREEK 6130 .0 -M * 20.9 -M *
WARREN PEAK 6520 .2 .2 100* -M 14.4 *
----- -----
Basin wide percent of average 100* 123*
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 1.2 0* 31.4 31.4 100
DIVIDE PEAK 8800 .0 1.5 0* 34.2 31.2 110
ELK RIVER 8700 .0 .2 0* 31.5 25.0 127
JOE WRIGHT 10120 11.9 11.5 103 37.3 35.7 105
NORTH FRENCH CREEK 10100 30.2 16.0 189 42.5 32.9 130
OLD BATTLE 10000 28.4 15.6 182 51.8 40.3 129
SOUTH BRUSH CREEK 8400 6.8 .5 1341* 29.5 24.0 123
TOWER 10500 40.5 34.8 117 53.2 50.0 107
WEBBER SPRINGS 9200 .0 5.6 0 37.9 34.3 111
WILLOW CREEK PASS 9540 .0 1.0 0* 19.4 18.9 103
----- -----
Basin wide percent of average 134 114
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 13.5 7.8 174 35.8 27.7 130
CASPER MTN. 7900 .3 2.2 10 25.9 23.7 110
DEADMAN HILL 10220 6.0 6.6 91 26.5 25.2 106
DEER PARK 9700 16.5 -M * 36.3 -M *
LAPRELE CREEK 8320 .0 .5 0* 26.0 18.9 139
RENO HILL 8400 .0 1.7 0 28.9 25.0 116
ROACH 9700 1.7 3.9 44 29.0 30.9 95
SAND LAKE 10080 40.7 18.4 222 44.0 29.2 152
SOUTH PASS 9040 5.0 6.6 75 32.7 24.7 132
WINDY PEAK 7840 .0 .0 100* 22.5 16.4 138
----- -----
Basin wide percent of average 141 123
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .2 .0 * 24.9 21.2 118
DIVIDE PEAK 8800 .0 1.5 0* 34.2 31.2 110
OLD BATTLE 10000 28.4 15.6 182 51.8 40.3 129
SANDSTONE RS 8150 .0 .0 100* 28.7 26.4 110
WHISKEY PARK 8950 -M 5.3 * 41.3 38.8 107
----- -----
Basin wide percent of average 166* 115
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.2 21.2 106
BLIND BULL SUM 8650 22.2 12.2 182 31.4 30.0 105
EAST RIM DIVIDE 7930 .5 3.0 17 20.7 19.7 105
ELKHART PARK G.S. 9400 2.3 1.9 122 23.9 20.7 115
GROS VENTRE SUMMIT 8775 2.7 .0 * 22.5 20.7 110
KENDALL R.S. 7740 .2 .0 * 22.2 20.2 110
LOOMIS PARK 8240 -M .0 * 27.7 24.4 114
NEW FORK LAKE 8340 .0 .0 100* 18.9 18.7 102
SNIDER BASIN 8250 .0 .0 100* 25.0 19.7 127
SPRING CREEK DIVIDE 9000 21.5 8.2 263 38.8 34.3 114
TRIPLE PEAK 8500 8.1 6.5 127 41.3 39.5 105
----- -----
Basin wide percent of average 173* 110
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 20.4 17.4 118
HEWINTA 9500 .0 .0 100* 21.9 19.7 112
HICKERSON PARK 9150 .2 .0 * 16.5 15.9 105
HOLE-IN-ROCK 9150 .0 .2 0* 17.2 15.9 109
INDIAN CREEK 9425 24.4 7.5 326 37.2 32.9 113
KELLEY R.S. 8180 .0 .0 100* 27.2 24.4 112
STEEL CREEK PARK 10100 14.0 7.3 192 26.0 20.9 125
----- -----
Basin wide percent of average 258* 114
UPPER BEAR RIVER
BUG LAKE 7950 .2 1.0 11* 31.9 25.4 126
HAYDEN FORK 9400 .0 .0 100* 30.9 26.9 116
KELLEY R.S. 8180 .0 .0 100* 27.2 24.4 112
LILY LAKE 9050 .0 .5 0* 27.4 21.7 127
MONTE CRISTO 8960 15.7 6.5 246 41.3 34.3 121
SALT RIVER SUMMIT 7600 .3 .0 * 25.4 21.9 116
TRIAL LAKE 9960 13.0 7.5 173 34.2 32.3 106
----- -----
Basin wide percent of average 187* 117
-----------------------------------------------------------------------------
-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.