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 TUESDAY: OCTOBER 26 , 2004
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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 1.1 .5 220* 2.2 1.7 129
COTTONWOOD CREEK 7600 1.0 .7 143* 2.7 2.5 108
GRANITE CREEK 6770 1.4 .4 350* 3.1 1.5 207
GRASSY LAKE 7265 2.4 1.1 218* 3.2 2.8 114
GROS VENTRE SUMMIT 8750 1.9 1.1 173* 2.1 1.5 140
LEWIS LAKE DIVIDE 7850 3.6 .9 400* 4.2 2.7 156
PHILLIPS BENCH 8200 2.5 1.0 250* 3.2 2.0 160
SALT RIVER SUMMIT 7600 1.2 .3 400* 2.8 1.6 175
SNAKE RIVER STATION 6920 .8 .4 200* 2.3 1.9 121
SPRING CREEK DIVIDE 9000 3.1 1.1 282* 3.5 2.2 159
THUMB DIVIDE 7980 1.7 .6 283* 2.2 1.7 129
TOGWOTEE PASS 9580 2.3 2.1 110* 2.4 2.3 104
TWO OCEAN PLATEAU 9240 3.4 2.5 136* 3.2 2.6 123
WILLOW CREEK 8450 2.0 1.4 143* 3.4 3.1 110
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Basin wide percent of average 201* 135
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 1.8 2.2 82* 2.1 1.8 117
BLACK BEAR 8170 5.0 2.2 227* 5.5 2.9 190
CANYON 8090 .9 .5 180* 1.9 1.5 127
FISHER CREEK 9100 2.5 2.2 114* 3.2 2.7 119
MADISON PLATEAU 7750 2.8 1.2 233* 3.8 2.1 181
NORTHEAST ENTRANCE 7350 .2 .2 100* .9 1.3 69
PARKER PEAK 9400 1.8 2.1 86* 1.9 1.9 100
SYLVAN LAKE 8420 1.6 1.6 100* 2.5 2.2 114
THUMB DIVIDE 7980 1.7 .6 283* 2.2 1.7 129
TWO OCEAN PLATEAU 9240 3.4 2.5 136* 3.2 2.6 123
WHISKEY CREEK 6800 1.5 .6 250* 3.1 1.9 163
WHITE MILL 8700 1.5 1.6 94* 2.1 2.3 91
WOLVERINE 7650 .3 .4 75* 1.3 1.5 87
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Basin wide percent of average 140* 128
WIND RIVER
BURROUGHS CREEK 8750 1.1 .8 138* 1.3 1.4 93
COLD SPRINGS 9630 1.2 .8 150* 1.7 1.6 106
DEER PARK 9700 4.5 2.0 225 5.3 2.1 252
HOBBS PARK 10100 2.5 1.7 147* 2.7 1.8 150
LITTLE WARM 9370 1.2 .9 133* 1.5 1.5 100
SOUTH PASS 9040 3.1 1.2 258* 3.9 1.8 217
ST. LAWRENCE ALT 8620 .6 .6 100* 1.5 1.5 100
TOGWOTEE PASS 9580 2.3 2.1 110* 2.4 2.3 104
TOWNSEND CREEK 8700 .8 .8 100* 2.9 1.8 161
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Basin wide percent of average 159* 147
BIGHORN BASIN
BALD MTN. 9380 2.9 2.3 126* 3.2 2.0 160
BEAR TRAP MEADOW 8200 .6 .5 120* 2.1 1.5 140
BLACKWATER 9780 2.2 2.6 85* 2.4 2.3 104
BONE SPRINGS DIV 9350 3.3 2.2 150 3.5 2.1 167
EVENING STAR 9200 2.1 2.2 95* 3.0 2.3 130
GRAVE SPRINGS 8550 .5 .8 62* 1.6 1.8 89
KIRWIN 9550 1.1 1.5 73 1.4 1.5 93
MARQUETTE 8760 .2 1.6 12 .8 1.9 42
MIDDLE POWDER 7760 .4 1.1 36* 1.8 2.2 82
OWL CREEK 8975 .0 .7 0 .4 1.0 40
POWDER RIVER PASS 9480 2.6 1.0 260* 3.4 1.6 212
SHELL CREEK 9580 2.9 2.3 126 2.8 1.7 165
SYLVAN LAKE 8420 1.6 1.6 100* 2.5 2.2 114
SYLVAN ROAD 7120 .5 .4 125* 2.1 1.8 117
TIMBER CREEK 7950 .0 .7 0 .5 1.4 36
YOUNTS PEAK 8350 1.2 1.1 109* 2.2 1.5 147
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Basin wide percent of average 98* 117
SHOSHONE RIVER
BLACKWATER 9780 2.2 2.6 85* 2.4 2.3 104
EVENING STAR 9200 2.1 2.2 95* 3.0 2.3 130
KIRWIN 9550 1.1 1.5 73 1.4 1.5 93
MARQUETTE 8760 .2 1.6 12 .8 1.9 42
SYLVAN LAKE 8420 1.6 1.6 100* 2.5 2.2 114
SYLVAN ROAD 7120 .5 .4 125* 2.1 1.8 117
YOUNTS PEAK 8350 1.2 1.1 109* 2.2 1.5 147
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Basin wide percent of average 81* 107
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .6 .5 120* 2.1 1.5 140
BIG GOOSE 7990 .3 .7 43* 1.7 1.8 94
BONE SPRINGS DIV 9350 3.3 2.2 150 3.5 2.1 167
BURGESS JUNCTION 7880 .6 1.2 50* 2.2 1.9 116
CLOUD PEAK RESERVOIR 9860 1.8 1.2 150* 2.3 2.2 105
DOME LAKE 8880 1.9 1.5 127 2.6 2.1 124
GRAVE SPRINGS 8550 .5 .8 62* 1.6 1.8 89
HANSEN SAWMILL 8360 .4 .7 57 1.4 1.5 93
MIDDLE POWDER 7760 .4 1.1 36* 1.8 2.2 82
POWDER RIVER PASS 9480 2.6 1.0 260* 3.4 1.6 212
SUCKER CREEK 8880 2.1 1.1 191* 2.9 2.0 145
TIE CREEK 6870 .3 .6 50* 1.8 2.1 86
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Basin wide percent of average 117* 120
BELLE FOURCHE
BLIND PARK 6890 .0 .4 0* 1.5 2.2 68
COLE CANYON 5910 .0 .6 0* 1.1 -M *
NORTH RAPID CREEK 6130 .0 .4 0* 1.2 2.1 57
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Basin wide percent of average 0* 63
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 .6 0* 2.2 2.0 110
DIVIDE PEAK 8860 2.1 1.4 150* 4.4 2.3 191
ELK RIVER 8700 .8 .5 160* 2.7 1.9 142
JOE WRIGHT 10120 2.9 2.0 145* 1.0 2.8 36
NORTH FRENCH CREEK 10130 2.3 2.6 88* 2.7 2.8 96
OLD BATTLE 9920 5.3 2.5 212* 6.3 3.0 210
SAGE CREEK BASIN 7850 1.1 .8 138* 3.8 1.3 292
SOUTH BRUSH CREEK 8440 .5 .6 83* 1.4 2.2 64
TOWER 10500 5.0 2.7 185* 3.8 3.3 115
WEBBER SPRINGS 9250 3.1 1.5 207* 4.4 2.6 169
WILLOW CREEK PASS 9540 1.1 .9 122* 1.6 1.7 94
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Basin wide percent of average 150* 132
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 .6 1.8 33* 1.5 2.1 71
CASPER MTN. 7850 .2 1.4 14* 1.6 2.1 76
DEADMAN HILL 10220 2.7 1.8 150* 1.8 2.1 86
DEER PARK 9700 4.5 2.0 225 5.3 2.1 252
LAPRELE CREEK 8375 .4 .8 50* 1.6 1.6 100
RENO HILL 8500 .4 1.4 29* 1.3 2.1 62
ROACH 9700 .7 .9 78* 2.1 1.9 111
SAND LAKE 10050 3.5 2.7 130* 2.4 2.6 92
SOUTH PASS 9040 3.1 1.2 258* 3.9 1.8 217
WINDY PEAK 7900 .0 .4 0* 1.1 1.5 73
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Basin wide percent of average 112* 114
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .5 .4 125* 2.2 1.6 138
DIVIDE PEAK 8860 2.1 1.4 150* 4.4 2.3 191
OLD BATTLE 9920 5.3 2.5 212* 6.3 3.0 210
SANDSTONE RS 8150 .5 .4 125* 2.4 1.9 126
WHISKEY PARK 8950 1.7 1.3 131* 2.8 2.4 117
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Basin wide percent of average 168* 162
UPPER GREEN RIVER
BIG SANDY OPENING 9080 -M 1.0 * 4.4 1.5 293
BLIND BULL SUM 8900 2.3 1.3 177* 2.5 1.9 132
EAST RIM DIVIDE 7930 .5 .5 100* 1.3 1.1 118
ELKHART PARK G.S. 9400 2.8 .7 400* 3.5 1.6 219
GROS VENTRE SUMMIT 8750 1.9 1.1 173* 2.1 1.5 140
KENDALL R.S. 7740 1.4 .5 280* 2.5 1.3 192
LOOMIS PARK 8240 1.8 .7 257* 2.5 1.5 167
NEW FORK LAKE 8340 1.0 .4 250* 1.6 1.3 123
SNIDER BASIN 8060 1.7 .6 283* 2.4 1.4 171
SPRING CREEK DIVIDE 9000 3.1 1.1 282* 3.5 2.2 159
TRIPLE PEAK 8500 1.4 .9 156* 2.2 1.9 116
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Basin wide percent of average 229* 166
LOWER GREEN RIVER
HAMS FORK 7840 1.4 .3 467* 2.8 1.2 233
HEWINTA 9500 .6 .7 86* 2.2 2.0 110
HICKERSON PARK 9100 1.1 .3 367* 2.8 1.5 187
HOLE-IN-ROCK 9150 1.1 .3 367* 2.4 1.4 171
INDIAN CREEK 9425 4.0 1.2 333* 4.1 2.2 186
KELLEY R.S. 8180 3.0 .7 429* 3.6 1.8 200
STEEL CREEK PARK 10100 2.8 1.4 200* 2.7 1.9 142
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Basin wide percent of average 286* 172
UPPER BEAR RIVER
BUG LAKE 7950 2.0 1.0 200* 3.7 1.9 195
HAYDEN FORK 9100 2.8 .7 400* 5.3 2.0 265
KELLEY R.S. 8180 3.0 .7 429* 3.6 1.8 200
LILY LAKE 9050 1.9 .8 237* 4.0 2.0 200
MONTE CRISTO 8960 4.4 1.3 338* 4.9 2.3 213
SALT RIVER SUMMIT 7600 1.2 .3 400* 2.8 1.6 175
TRIAL LAKE 9960 5.5 1.6 344* 6.9 2.3 300
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Basin wide percent of average 325* 224
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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 1971-2000.
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.