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: OCTOBER 15 , 1997
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 .2 .0 * 1.4 .9 156
COTTONWOOD CREEK 7600 .3 .0 * 1.8 1.0 180
GRANITE CREEK 6770 .2 .0 * .5 1.0 50
GRASSY LAKE 7265 .5 .0 * 2.4 1.5 160
GROS VENTRE SUMMIT 8775 .6 .0 * .9 .7 129
LEWIS LAKE DIVIDE 7860 .8 .0 * 1.6 1.5 107
PHILLIPS BENCH 8200 .4 .0 * 1.2 1.2 100
SALT RIVER SUMMIT 7600 .0 .0 100* 1.8 .8 225
SNAKE RIVER STATION 6920 .1 .0 * 1.1 1.0 110
SPRING CREEK DIVIDE 9000 .3 .0 * .9 .9 100
THUMB DIVIDE 7980 .6 .0 * 1.4 .9 156
TOGWOTEE PASS 9580 1.3 1.0 130* 1.4 1.1 127
TWO OCEAN PLATEAU 9360 1.5 1.3 115* 2.1 1.3 162
WILLOW CREEK 8450 .4 .0 * 2.8 1.3 215
----- -----
Basin wide percent of average 122* 141
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 1.1 1.5 73* 1.2 .9 133
BLACK BEAR 7950 1.7 1.2 142* 2.4 1.6 150
CANYON 7940 .7 .2 350* 1.9 .8 238
FISHER CREEK 9100 2.1 .9 233* 2.0 1.4 143
MADISON PLATEAU 7750 .7 .5 140* 1.8 1.1 164
NORTHEAST ENTRANCE 7350 .0 .0 100* 1.7 .7 243
PARKER PEAK 9400 1.5 1.7 88* 2.0 1.0 200
SYLVAN LAKE 8420 1.7 1.1 155* 3.3 1.2 275
THUMB DIVIDE 7980 .6 .0 * 1.4 .9 156
TWO OCEAN PLATEAU 9360 1.5 1.3 115* 2.1 1.3 162
WHISKEY CREEK 6800 .0 .2 0* 1.6 1.0 160
WHITE MILL 8700 1.4 .8 175* 1.9 1.2 158
WOLVERINE 7650 .0 .1 0* 1.6 .7 229
----- -----
Basin wide percent of average 131* 180
WIND RIVER
BURROUGHS CREEK 8750 .4 .3 133* .7 .7 100
COLD SPRINGS 9630 .1 .3 33* .5 .9 56
DEER PARK 9700 .0 -M * .0 -M *
HOBBS PARK 10100 .5 .8 62* .4 .9 44
LITTLE WARM 9620 .2 .4 50* 1.2 .8 150
SOUTH PASS 9040 .5 1.3 38* 1.2 1.0 120
ST. LAWRENCE ALT 8620 .2 .3 67* .6 .8 75
TOGWOTEE PASS 9580 1.3 1.0 130* 1.4 1.1 127
TOWNSEND CREEK 8700 .3 .3 100* 1.0 .9 111
----- -----
Basin wide percent of average 74* 99
BIGHORN BASIN
BALD MTN. 9375 2.2 1.4 157* 2.1 1.0 210
BEAR TRAP MEADOW 7900 .1 .2 50* .7 .7 100
BLACKWATER 9780 1.0 1.3 77* 1.4 1.1 127
BONE SPRINGS DIV 9350 1.4 1.7 82* 1.9 1.0 190
EVENING STAR 9200 1.0 1.7 59* 2.2 1.3 169
GRAVE SPRINGS 8550 .3 -M * .9 .9 100
KIRWIN 9550 .6 .7 86* .9 .7 129
LOST CREEK 8080 -M .6 * -M .9 *
MARQUETTE 8760 1.0 .5 200* 1.5 .8 188
MIDDLE POWDER 7760 .7 .6 117* 1.2 .9 133
OWL CREEK 8975 .6 .4 150* .7 .5 140
POWDER RIVER PASS 9480 .3 .5 60* .9 .9 100
SHELL CREEK 9580 1.3 1.5 87* 1.1 .9 122
SYLVAN LAKE 8420 1.7 1.1 155* 3.3 1.2 275
SYLVAN ROAD 8120 .0 .6 0* 1.7 1.0 170
TIMBER CREEK 7950 .9 .1 900* 1.5 .6 250
YOUNTS PEAK 8350 .3 1.0 30* .7 .9 78
----- -----
Basin wide percent of average 98* 158
SHOSHONE RIVER
BLACKWATER 9780 1.0 1.3 77* 1.4 1.1 127
EVENING STAR 9200 1.0 1.7 59* 2.2 1.3 169
KIRWIN 9550 .6 .7 86* .9 .7 129
MARQUETTE 8760 1.0 .5 200* 1.5 .8 188
SYLVAN LAKE 8420 1.7 1.1 155* 3.3 1.2 275
SYLVAN ROAD 8120 .0 .6 0* 1.7 1.0 170
YOUNTS PEAK 8350 .3 1.0 30* .7 .9 78
----- -----
Basin wide percent of average 81* 167
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .1 .2 50* .7 .7 100
BONE SPRINGS DIV 9350 1.4 1.7 82* 1.9 1.0 190
BURGESS JUNCTION 7880 .5 .7 71* 1.4 .9 156
CLOUD PEAK RESERVOIR 9860 .2 .6 33* 2.0 .9 222
DOME LAKE 8880 .5 .9 56* 1.4 1.0 140
GRAVE SPRINGS 8550 .3 -M * .9 .9 100
HANSEN SAWMILL 8760 .1 .3 33* .8 .7 114
LOST CREEK 8080 -M .6 * -M .9 *
MIDDLE POWDER 7760 .7 .6 117* 1.2 .9 133
POWDER RIVER PASS 9480 .3 .5 60* .9 .9 100
SUCKER CREEK 8880 .7 .6 117* 1.7 1.0 170
TIE CREEK 6870 .1 -M * 1.3 .9 144
----- -----
Basin wide percent of average 74* 145
BELLE FOURCHE
BLIND PARK 6890 .1 .8 12* 1.2 .8 150
NORTH RAPID CREEK 6130 .2 -M * .8 -M *
WARREN PEAK 6520 .2 .8 25* 1.5 .6 250
----- -----
Basin wide percent of average 19* 193
UPPER N. PLATTE RIVER
COLUMBINE 9400 .4 .5 80* 2.1 1.1 191
DIVIDE PEAK 8800 .4 .6 67* 1.7 1.4 121
ELK RIVER 8700 .0 .0 100* 1.8 1.0 180
JOE WRIGHT 10120 .8 1.1 73* 2.9 1.6 181
NORTH FRENCH CREEK 10100 .9 .6 150* 2.2 1.0 220
OLD BATTLE 10000 1.3 1.8 72* 3.1 1.4 221
SOUTH BRUSH CREEK 8400 .3 .1 300* 1.3 1.0 130
TOWER 10500 -M 2.1 * -M 1.8 *
WEBBER SPRINGS 9200 .3 .5 60* 2.2 1.4 157
WILLOW CREEK PASS 9540 .8 .2 400* 1.4 .8 175
----- -----
Basin wide percent of average 96* 175
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .5 .9 56* .8 1.1 73
CASPER MTN. 7900 .6 .4 150* 1.1 1.1 100
DEADMAN HILL 10220 .6 .4 150* .7 1.1 64
DEER PARK 9700 .0 -M * .0 -M *
LAPRELE CREEK 8320 .3 .1 300* .9 .7 129
RENO HILL 8400 .8 .6 133* 1.2 1.1 109
ROACH 9700 .2 .4 50* 1.1 1.2 92
SAND LAKE 10080 1.3 .9 144* 1.8 1.2 150
SOUTH PASS 9040 .5 1.3 38* 1.2 1.0 120
WINDY PEAK 7840 .1 .0 * .8 .5 160
----- -----
Basin wide percent of average 96* 107
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 2.3 .8 288
DIVIDE PEAK 8800 .4 .6 67* 1.7 1.4 121
OLD BATTLE 10000 1.3 1.8 72* 3.1 1.4 221
SANDSTONE RS 8150 .0 .0 100* 2.2 .8 275
WHISKEY PARK 8950 .5 .6 83* 2.4 .9 267
----- -----
Basin wide percent of average 73* 221
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .8 .0 * 1.1 .7 157
BLIND BULL SUM 8650 .4 .0 * 1.0 .9 111
EAST RIM DIVIDE 7930 .0 .0 100* .2 .7 29
ELKHART PARK G.S. 9400 .8 .0 * 1.2 .7 171
GROS VENTRE SUMMIT 8775 .6 .0 * .9 .7 129
KENDALL R.S. 7740 .1 .0 * .7 .7 100
LOOMIS PARK 8240 .0 .0 100* .5 .8 62
NEW FORK LAKE 8340 .1 .0 * .8 .6 133
SNIDER BASIN 8250 .0 .0 100* .2 .7 29
SPRING CREEK DIVIDE 9000 .3 .0 * .9 .9 100
TRIPLE PEAK 8500 .1 .0 * .9 1.3 69
----- -----
Basin wide percent of average * 97
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 * .4 .6 67
HEWINTA 9500 -M .1 * 1.9 1.1 173
HICKERSON PARK 9150 .0 .0 100* 1.5 .9 167
HOLE-IN-ROCK 9150 .0 .0 100* 1.5 .9 167
INDIAN CREEK 9425 .6 .0 * .7 1.0 70
KELLEY R.S. 8180 .2 .0 * .7 .8 88
STEEL CREEK PARK 10100 1.1 .8 138* 1.8 1.1 164
----- -----
Basin wide percent of average 138* 133
UPPER BEAR RIVER
BUG LAKE 7950 .3 .6 50* 1.2 1.5 80
HAYDEN FORK 9400 .0 .3 0* 1.6 1.1 145
KELLEY R.S. 8180 .2 .0 * .7 .8 88
LILY LAKE 9050 .3 .4 75* 1.6 1.2 133
MONTE CRISTO 8960 .5 .7 71* 1.6 1.6 100
SALT RIVER SUMMIT 7600 .0 .0 100* 1.8 .8 225
TRIAL LAKE 9960 .8 .7 114* 1.4 1.3 108
----- -----
Basin wide percent of average 70* 119
-----------------------------------------------------------------------------
-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.