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 SUNDAY: OCTOBER 15 , 2000
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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 1.0 .0 * 2.0 .9 222
COTTONWOOD CREEK 7600 1.3 .0 * 1.8 1.0 180
GRANITE CREEK 6770 .9 .0 * 1.9 1.0 190
GRASSY LAKE 7265 2.2 .0 * 2.8 1.5 187
GROS VENTRE SUMMIT 8775 1.2 .0 * 1.2 .7 171
LEWIS LAKE DIVIDE 7860 1.8 .0 * 3.0 1.5 200
PHILLIPS BENCH 8200 2.1 .0 * 2.2 1.2 183
SALT RIVER SUMMIT 7600 .4 .0 * 1.5 .8 188
SNAKE RIVER STATION 6920 1.2 .0 * 3.0 1.0 300
SPRING CREEK DIVIDE 9000 1.6 .0 * 1.8 .9 200
THUMB DIVIDE 7980 -M .0 * -M .9 *
TOGWOTEE PASS 9580 1.7 1.0 170* 1.8 1.1 164
TWO OCEAN PLATEAU 9360 2.5 1.3 192* 2.4 1.3 185
WILLOW CREEK 8450 1.9 .0 * 2.4 1.3 185
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Basin wide percent of average 183* 196
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 1.6 1.5 107* 1.6 .9 178
BLACK BEAR 7950 3.1 1.2 258* 4.0 1.6 250
CANYON 7940 .8 .2 400* 1.6 .8 200
FISHER CREEK 9100 2.0 .9 222* 2.8 1.4 200
MADISON PLATEAU 7750 1.9 .5 380* 2.9 1.1 264
NORTHEAST ENTRANCE 7350 .0 .0 100* 1.4 .7 200
PARKER PEAK 9400 1.0 1.7 59* 2.2 1.0 220
SYLVAN LAKE 8420 1.6 1.1 145* 2.8 1.2 233
THUMB DIVIDE 7980 -M .0 * -M .9 *
TWO OCEAN PLATEAU 9360 2.5 1.3 192* 2.4 1.3 185
WHISKEY CREEK 6800 1.2 .2 600* 2.6 1.0 260
WHITE MILL 8700 1.3 .8 162* 2.4 1.2 200
WOLVERINE 7650 .0 .1 0* 1.6 .7 229
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Basin wide percent of average 179* 219
WIND RIVER
BURROUGHS CREEK 8750 .3 .3 100* .7 .7 100
COLD SPRINGS 9630 .2 .3 67* .3 .9 33
DEER PARK 9700 1.7 -M * 1.8 -M *
HOBBS PARK 10100 .7 .8 87* .5 .9 56
LITTLE WARM 9620 .6 .4 150* .7 .8 87
SOUTH PASS 9040 1.0 1.3 77* 1.0 1.0 100
ST. LAWRENCE ALT 8620 .1 .3 33* .2 .8 25
TOGWOTEE PASS 9580 1.7 1.0 170* 1.8 1.1 164
TOWNSEND CREEK 8700 .1 .3 33* .7 .9 78
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Basin wide percent of average 100* 83
BIGHORN BASIN
BALD MTN. 9375 .7 1.4 50* 1.2 1.0 120
BEAR TRAP MEADOW 7900 .0 .2 0* .5 .7 71
BLACKWATER 9780 1.8 1.3 138* 1.9 1.1 173
BONE SPRINGS DIV 9350 .8 1.7 47* 1.5 1.0 150
EVENING STAR 9200 1.0 1.7 59* 3.0 1.3 231
GRAVE SPRINGS 8550 .2 .5 40* .6 .9 67
KIRWIN 9550 .6 .7 86* 1.1 .7 157
MARQUETTE 8760 .2 .5 40* .8 .8 100
MIDDLE POWDER 7760 .1 .6 17* .6 .9 67
OWL CREEK 8975 .1 .4 25* .4 .5 80
POWDER RIVER PASS 9480 .3 .5 60* 1.3 .9 144
SHELL CREEK 9580 1.5 1.5 100* 1.4 .9 156
SYLVAN LAKE 8420 1.6 1.1 145* 2.8 1.2 233
SYLVAN ROAD 8120 .7 .6 117* 2.5 1.0 250
TIMBER CREEK 7950 .2 .1 200* .9 .6 150
YOUNTS PEAK 8350 1.2 1.0 120* 2.2 .9 244
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Basin wide percent of average 80* 158
SHOSHONE RIVER
BLACKWATER 9780 1.8 1.3 138* 1.9 1.1 173
EVENING STAR 9200 1.0 1.7 59* 3.0 1.3 231
KIRWIN 9550 .6 .7 86* 1.1 .7 157
MARQUETTE 8760 .2 .5 40* .8 .8 100
SYLVAN LAKE 8420 1.6 1.1 145* 2.8 1.2 233
SYLVAN ROAD 8120 .7 .6 117* 2.5 1.0 250
YOUNTS PEAK 8350 1.2 1.0 120* 2.2 .9 244
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Basin wide percent of average 103* 204
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .2 0* .5 .7 71
BIG GOOSE 7990 .4 -M * .9 -M *
BONE SPRINGS DIV 9350 .8 1.7 47* 1.5 1.0 150
BURGESS JUNCTION 7880 .6 .7 86* .6 .9 67
CLOUD PEAK RESERVOIR 9860 .4 .6 67* 1.5 .9 167
DOME LAKE 8880 .8 .9 89* 1.4 1.0 140
GRAVE SPRINGS 8550 .2 .5 40* .6 .9 67
HANSEN SAWMILL 8760 .3 .3 100* 1.0 .7 143
MIDDLE POWDER 7760 .1 .6 17* .6 .9 67
POWDER RIVER PASS 9480 .3 .5 60* 1.3 .9 144
SUCKER CREEK 8880 .1 .6 17* .5 1.0 50
TIE CREEK 6870 .2 -M * 1.0 .9 111
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Basin wide percent of average 55* 107
BELLE FOURCHE
BLIND PARK 6890 .0 .8 0* .3 .8 37
COLE CANYON 5910 .2 -M * .7 -M *
NORTH RAPID CREEK 6130 .0 -M * .4 -M *
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Basin wide percent of average 0* 37*
UPPER N. PLATTE RIVER
COLUMBINE 9400 .1 .5 20* .3 1.1 27
DIVIDE PEAK 8800 .5 .6 83* 1.0 1.4 71
ELK RIVER 8700 .0 .0 100* .2 1.0 20
JOE WRIGHT 10120 .2 1.1 18* .1 1.6 6
NORTH FRENCH CREEK 10100 .6 .6 100* .4 1.0 40
OLD BATTLE 10000 .6 1.8 33* .7 1.4 50
SOUTH BRUSH CREEK 8400 .1 .1 100* .1 1.0 10
TOWER 10500 .5 2.1 24* .5 1.8 28
WEBBER SPRINGS 9200 .2 .5 40* .1 1.4 7
WILLOW CREEK PASS 9540 .0 .2 -0* .1 .8 12
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Basin wide percent of average 37* 28
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .2 .9 22* .2 1.1 18
CASPER MTN. 7900 .5 .4 125* .5 1.1 45
DEADMAN HILL 10220 1.2 .4 300* .0 1.1 0
DEER PARK 9700 1.7 -M * 1.8 -M *
LAPRELE CREEK 8320 .3 .1 300* .6 .7 86
RENO HILL 8400 .0 .6 0* .1 1.1 9
ROACH 9700 .0 .4 -0* .1 1.2 8
SAND LAKE 10080 .3 .9 33* .5 1.2 42
SOUTH PASS 9040 1.0 1.3 77* 1.0 1.0 100
WINDY PEAK 7840 .0 .0 100* .3 .5 60
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Basin wide percent of average 70* 37
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* .5 .8 62
DIVIDE PEAK 8800 .5 .6 83* 1.0 1.4 71
OLD BATTLE 10000 .6 1.8 33* .7 1.4 50
SANDSTONE RS 8150 .3 .0 * .7 .8 87
WHISKEY PARK 8950 .2 .6 33* .4 .9 44
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Basin wide percent of average 43* 62
UPPER GREEN RIVER
BIG SANDY OPENING 9100 1.7 .0 * 1.8 .7 257
BLIND BULL SUM 8650 1.8 .0 * 1.8 .9 200
EAST RIM DIVIDE 7930 1.1 .0 * 1.3 .7 186
ELKHART PARK G.S. 9400 1.7 .0 * 2.0 .7 286
GROS VENTRE SUMMIT 8775 1.2 .0 * 1.2 .7 171
KENDALL R.S. 7740 .9 .0 * 1.4 .7 200
LOOMIS PARK 8240 1.6 .0 * 1.7 .8 212
NEW FORK LAKE 8340 1.0 .0 * 1.2 .6 200
SNIDER BASIN 8250 .7 .0 * 1.0 .7 143
SPRING CREEK DIVIDE 9000 1.6 .0 * 1.8 .9 200
TRIPLE PEAK 8500 1.4 .0 * 2.0 1.3 154
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Basin wide percent of average * 198
LOWER GREEN RIVER
HAMS FORK 7840 .4 .0 * 1.0 .6 167
HEWINTA 9500 .2 .1 200* 1.6 1.1 145
HICKERSON PARK 9150 -M .0 * 1.2 .9 133
HOLE-IN-ROCK 9150 .0 .0 100* 1.2 .9 133
INDIAN CREEK 9425 2.2 .0 * 1.6 1.0 160
KELLEY R.S. 8180 1.3 .0 * 1.4 .8 175
STEEL CREEK PARK 10100 1.1 .8 138* 1.3 1.1 118
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Basin wide percent of average 144* 145
UPPER BEAR RIVER
BUG LAKE 7950 .9 .6 150* 1.3 1.5 87
HAYDEN FORK 9400 .4 .3 133* 1.5 1.1 136
KELLEY R.S. 8180 1.3 .0 * 1.4 .8 175
LILY LAKE 9050 .6 .4 150* 1.4 1.2 117
MONTE CRISTO 8960 .3 .7 43* 1.7 1.6 106
SALT RIVER SUMMIT 7600 .4 .0 * 1.5 .8 188
TRIAL LAKE 9960 .8 .7 114* 1.8 1.3 138
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Basin wide percent of average 111* 128
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Average Snow Water Equivalent and
Total Precipitation values
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.