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 FRIDAY: OCTOBER 26 , 2001
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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 .5 .5 100* 2.5 1.6 156
COTTONWOOD CREEK 7600 .9 .5 180* 2.4 1.8 133
GRANITE CREEK 6770 .4 .4 100* 2.5 1.9 132
GRASSY LAKE 7265 1.1 .7 157* 2.8 2.7 104
GROS VENTRE SUMMIT 8775 1.5 .7 214* 1.3 1.3 100
LEWIS LAKE DIVIDE 7860 1.6 .9 178* 2.5 2.7 93
PHILLIPS BENCH 8200 2.4 .8 300* 2.8 2.1 133
SALT RIVER SUMMIT 7600 .0 .0 100* 1.2 1.4 86
SNAKE RIVER STATION 6920 .0 .4 0* 2.0 1.9 105
SPRING CREEK DIVIDE 9000 2.8 .9 311* 3.0 1.7 176
THUMB DIVIDE 7980 .7 .3 233* 1.5 1.5 100
TOGWOTEE PASS 9580 2.9 1.8 161* 3.2 2.0 160
TWO OCEAN PLATEAU 9360 2.9 2.7 107* 2.5 2.3 109
WILLOW CREEK 8450 .9 .8 112* 2.5 2.3 109
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Basin wide percent of average 163* 120
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.2 2.5 128* 3.0 1.5 200
BLACK BEAR 7950 3.0 2.2 136* 3.8 2.8 136
CANYON 7940 1.1 .6 183* 1.6 1.5 107
FISHER CREEK 9100 3.7 2.0 185* 3.8 2.4 158
MADISON PLATEAU 7750 1.4 1.1 127* 2.5 2.0 125
NORTHEAST ENTRANCE 7350 .1 .2 50* 1.3 1.2 108
PARKER PEAK 9400 1.8 3.0 60 1.3 1.8 72
SYLVAN LAKE 8420 2.0 2.0 100* 2.8 2.1 133
THUMB DIVIDE 7980 .7 .3 233* 1.5 1.5 100
TWO OCEAN PLATEAU 9360 2.9 2.7 107* 2.5 2.3 109
WHISKEY CREEK 6800 1.0 .6 167* 1.7 1.8 94
WHITE MILL 8700 3.2 1.5 213* 2.9 2.2 132
WOLVERINE 7650 .3 .2 150* 2.2 1.3 169
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Basin wide percent of average 129* 127
WIND RIVER
BURROUGHS CREEK 8750 2.1 .7 300* 2.4 1.3 185
COLD SPRINGS 9630 .4 .7 57* .8 1.5 53
DEER PARK 9700 1.3 -M * 1.7 -M *
HOBBS PARK 10100 1.1 1.6 69* 1.1 1.6 69
LITTLE WARM 9620 1.4 .8 175* 1.8 1.5 120
SOUTH PASS 9040 .5 2.1 24 1.3 1.8 72
ST. LAWRENCE ALT 8620 .0 .6 0* .5 1.4 36
TOGWOTEE PASS 9580 2.9 1.8 161* 3.2 2.0 160
TOWNSEND CREEK 8700 .1 .8 12* .5 1.5 33
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Basin wide percent of average 93* 92
BIGHORN BASIN
BALD MTN. 9375 3.7 2.2 168* 3.5 1.9 184
BEAR TRAP MEADOW 7900 1.2 .5 240* 2.0 1.3 154
BLACKWATER 9780 2.3 2.1 110* 2.0 1.9 105
BONE SPRINGS DIV 9350 3.3 2.3 143 3.5 1.8 194
EVENING STAR 9200 2.8 3.1 90* 3.8 2.3 165
GRAVE SPRINGS 8550 1.0 .8 125* 2.5 1.5 167
KIRWIN 9550 1.6 1.2 133 1.7 1.3 131
MARQUETTE 8760 .7 .8 87* .8 1.5 53
MIDDLE POWDER 7760 1.3 1.1 118* 2.2 1.7 129
OWL CREEK 8975 .0 .5 0* .4 .8 50
POWDER RIVER PASS 9480 2.1 1.0 210* 3.2 1.5 213
SHELL CREEK 9580 3.6 2.1 171 3.4 1.5 227
SYLVAN LAKE 8420 2.0 2.0 100* 2.8 2.1 133
SYLVAN ROAD 8120 .5 1.2 42* 2.7 1.8 150
TIMBER CREEK 7950 .1 .2 50* 1.1 1.0 110
YOUNTS PEAK 8350 1.9 1.8 106 1.8 1.5 120
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Basin wide percent of average 123* 147
SHOSHONE RIVER
BLACKWATER 9780 2.3 2.1 110* 2.0 1.9 105
EVENING STAR 9200 2.8 3.1 90* 3.8 2.3 165
KIRWIN 9550 1.6 1.2 133 1.7 1.3 131
MARQUETTE 8760 .7 .8 87* .8 1.5 53
SYLVAN LAKE 8420 2.0 2.0 100* 2.8 2.1 133
SYLVAN ROAD 8120 .5 1.2 42* 2.7 1.8 150
YOUNTS PEAK 8350 1.9 1.8 106 1.8 1.5 120
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Basin wide percent of average 97* 126
POWDER-TONGUE
BEAR TRAP MEADOW 7900 1.2 .5 240* 2.0 1.3 154
BIG GOOSE 7990 1.5 -M * 3.2 -M *
BONE SPRINGS DIV 9350 3.3 2.3 143 3.5 1.8 194
BURGESS JUNCTION 7880 1.6 1.3 123* 2.8 1.6 175
CLOUD PEAK RESERVOIR 9860 2.3 1.1 209* 3.9 1.7 229
DOME LAKE 8880 2.3 1.5 153 3.8 1.9 200
GRAVE SPRINGS 8550 1.0 .8 125* 2.5 1.5 167
HANSEN SAWMILL 8760 .4 .6 67* 1.9 1.3 146
MIDDLE POWDER 7760 1.3 1.1 118* 2.2 1.7 129
POWDER RIVER PASS 9480 2.1 1.0 210* 3.2 1.5 213
SUCKER CREEK 8880 2.4 1.0 240* 4.0 1.8 222
TIE CREEK 6870 .0 -M * 2.8 1.5 187
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Basin wide percent of average 160* 185
BELLE FOURCHE
BLIND PARK 6890 .3 1.3 23 2.8 1.5 187
COLE CANYON 5910 .0 .6 0* 1.1 1.1 100
NORTH RAPID CREEK 6130 .4 -M * 2.2 -M *
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Basin wide percent of average 16* 150
UPPER N. PLATTE RIVER
COLUMBINE 9400 .3 1.2 25* 2.1 2.0 105
DIVIDE PEAK 8800 .5 1.6 31* 1.4 2.5 56
ELK RIVER 8700 .0 .3 0* 1.6 1.9 84
JOE WRIGHT 10120 2.1 2.4 88* 2.2 2.8 79
NORTH FRENCH CREEK 10100 2.6 1.6 162* 2.1 1.9 111
OLD BATTLE 10000 .9 3.0 30* 2.2 2.6 85
SOUTH BRUSH CREEK 8400 .1 .3 33* 1.5 1.9 79
TOWER 10500 1.8 4.6 39* 2.3 3.2 72
WEBBER SPRINGS 9200 .3 1.4 21* 1.7 2.4 71
WILLOW CREEK PASS 9540 .0 .8 0* .6 1.5 40
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Basin wide percent of average 50* 78
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.7 1.5 113* 2.7 1.9 142
CASPER MTN. 7900 2.1 1.0 210* 3.0 2.0 150
DEADMAN HILL 10220 1.1 1.0 110* 1.2 1.9 63
DEER PARK 9700 1.3 -M * 1.7 -M *
LAPRELE CREEK 8320 .8 .6 133* 2.8 1.2 233
RENO HILL 8400 2.0 1.3 154* 3.0 2.0 150
ROACH 9700 .4 1.0 40* 1.2 2.2 55
SAND LAKE 10080 2.9 2.3 126* 3.0 2.1 143
SOUTH PASS 9040 .5 2.1 24 1.3 1.8 72
WINDY PEAK 7840 .1 .1 100* 2.2 1.0 220
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Basin wide percent of average 106* 127
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .2 .3 67* 1.0 1.5 67
DIVIDE PEAK 8800 .5 1.6 31* 1.4 2.5 56
OLD BATTLE 10000 .9 3.0 30* 2.2 2.6 85
SANDSTONE RS 8150 .0 .5 0* 1.8 1.4 129
WHISKEY PARK 8950 1.3 1.7 76* 2.1 1.5 140
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Basin wide percent of average 41* 89
UPPER GREEN RIVER
BIG SANDY OPENING 9100 1.4 .5 280* 1.0 1.3 77
BLIND BULL SUM 8650 3.0 1.5 200* 2.6 1.6 162
EAST RIM DIVIDE 7930 .7 .3 233* 1.0 1.2 83
ELKHART PARK G.S. 9400 1.2 .6 200* 1.4 1.3 108
GROS VENTRE SUMMIT 8775 1.5 .7 214* 1.3 1.3 100
KENDALL R.S. 7740 .7 .0 * 1.5 1.2 125
LOOMIS PARK 8240 1.9 .3 633* 2.0 1.5 133
NEW FORK LAKE 8340 .8 .0 * 1.2 1.1 109
SNIDER BASIN 8250 1.1 .0 * 2.2 1.2 183
SPRING CREEK DIVIDE 9000 2.8 .9 311* 3.0 1.7 176
TRIPLE PEAK 8500 2.5 .6 417* 3.7 2.3 161
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Basin wide percent of average 278* 133
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 * .3 1.0 30
HEWINTA 9500 -M .2 * 1.9 1.9 100
HICKERSON PARK 9150 .0 .1 0* .7 1.7 41
HOLE-IN-ROCK 9150 .0 .1 0* 1.5 1.7 88
INDIAN CREEK 9425 1.6 1.1 145* 1.3 1.9 68
KELLEY R.S. 8180 .2 .3 67* .8 1.5 53
STEEL CREEK PARK 10100 1.2 1.6 75* 1.1 1.9 58
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Basin wide percent of average 94* 66
UPPER BEAR RIVER
BUG LAKE 7950 -M .9 * .6 2.7 22
HAYDEN FORK 9400 .1 .7 14* 1.4 2.0 70
KELLEY R.S. 8180 .2 .3 67* .8 1.5 53
LILY LAKE 9050 .0 .8 0* 1.4 2.2 64
MONTE CRISTO 8960 .0 1.2 0* 1.4 2.8 50
SALT RIVER SUMMIT 7600 .0 .0 100* 1.2 1.4 86
TRIAL LAKE 9960 .1 1.5 7* 1.7 2.3 74
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Basin wide percent of average 9* 57
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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.