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 29 , 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 1.7 .6 283* 2.9 1.9 153
COTTONWOOD CREEK 7600 1.6 .8 200* 3.4 2.8 121
GRANITE CREEK 6770 1.6 .5 320* 3.8 1.6 237
GRASSY LAKE 7265 2.8 1.3 215* 3.8 3.2 119
GROS VENTRE SUMMIT 8750 2.3 1.3 177* 2.4 1.7 141
LEWIS LAKE DIVIDE 7850 3.8 1.1 345* 4.4 3.0 147
PHILLIPS BENCH 8200 3.0 1.3 231* 3.7 2.3 161
SALT RIVER SUMMIT 7600 1.5 .3 500* 3.5 1.8 194
SNAKE RIVER STATION 6920 .8 .5 160* 2.5 2.1 119
SPRING CREEK DIVIDE 9000 4.2 1.4 300* 4.6 2.4 192
THUMB DIVIDE 7980 1.7 .8 212* 2.4 1.9 126
TOGWOTEE PASS 9580 2.7 2.4 113* 2.9 2.6 112
TWO OCEAN PLATEAU 9240 4.3 2.8 154* 3.9 2.9 134
WILLOW CREEK 8450 2.9 1.6 181* 4.5 3.4 132
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Basin wide percent of average 209* 145
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 2.4 2.5 96* 2.6 2.0 130
BLACK BEAR 8170 5.6 2.5 224* 6.1 3.3 185
CANYON 8090 1.1 .6 183* 2.2 1.7 129
FISHER CREEK 9100 3.0 2.5 120* 3.8 3.1 123
MADISON PLATEAU 7750 -M 1.5 * -M 2.3 *
NORTHEAST ENTRANCE 7350 .2 .3 67* 1.2 1.4 86
PARKER PEAK 9400 2.2 2.4 92* 2.3 2.2 105
SYLVAN LAKE 8420 2.3 1.8 128* 3.3 2.4 138
THUMB DIVIDE 7980 1.7 .8 212* 2.4 1.9 126
TWO OCEAN PLATEAU 9240 4.3 2.8 154* 3.9 2.9 134
WHISKEY CREEK 6800 1.7 .7 243* 3.2 2.1 152
WHITE MILL 8700 1.9 1.9 100* 2.5 2.5 100
WOLVERINE 7650 .3 .4 75* 1.4 1.7 82
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Basin wide percent of average 139* 128
WIND RIVER
BURROUGHS CREEK 8750 1.4 .9 156* 1.6 1.5 107
COLD SPRINGS 9630 1.3 .9 144 1.8 1.8 100
DEER PARK 9700 5.7 2.4 238 6.5 2.3 283
HOBBS PARK 10100 2.7 2.0 135 2.9 2.0 145
LITTLE WARM 9370 1.4 1.0 140* 1.7 1.6 106
SOUTH PASS 9040 3.7 1.4 264* 4.6 2.0 230
ST. LAWRENCE ALT 8620 .7 .8 87 1.6 1.6 100
TOGWOTEE PASS 9580 2.7 2.4 113* 2.9 2.6 112
TOWNSEND CREEK 8700 1.0 1.0 100* 3.2 2.0 160
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Basin wide percent of average 161* 154
BIGHORN BASIN
BALD MTN. 9380 3.1 2.6 119 3.4 2.3 148
BEAR TRAP MEADOW 8200 .1 .5 20 2.1 1.6 131
BLACKWATER 9780 2.5 2.9 86 2.7 2.5 108
BONE SPRINGS DIV 9350 3.6 2.5 144 3.7 2.3 161
EVENING STAR 9200 2.6 2.5 104* 3.5 2.6 135
GRAVE SPRINGS 8550 .3 1.0 30* 1.6 2.0 80
KIRWIN 9550 1.3 1.7 76 1.6 1.7 94
MARQUETTE 8760 .8 1.8 44 1.3 2.2 59
MIDDLE POWDER 7760 .1 1.2 8* 1.8 2.4 75
OWL CREEK 8975 .0 .8 0 .5 1.1 45
POWDER RIVER PASS 9480 2.8 1.2 233* 3.5 1.8 194
SHELL CREEK 9580 3.0 2.5 120 2.9 1.9 153
SYLVAN LAKE 8420 2.3 1.8 128* 3.3 2.4 138
SYLVAN ROAD 7120 .9 .4 225* 2.5 2.0 125
TIMBER CREEK 7950 .0 .9 0 .4 1.5 27
YOUNTS PEAK 8350 1.4 1.3 108* 2.3 1.7 135
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Basin wide percent of average 97 116
SHOSHONE RIVER
BLACKWATER 9780 2.5 2.9 86 2.7 2.5 108
EVENING STAR 9200 2.6 2.5 104* 3.5 2.6 135
KIRWIN 9550 1.3 1.7 76 1.6 1.7 94
MARQUETTE 8760 .8 1.8 44 1.3 2.2 59
SYLVAN LAKE 8420 2.3 1.8 128* 3.3 2.4 138
SYLVAN ROAD 7120 .9 .4 225* 2.5 2.0 125
YOUNTS PEAK 8350 1.4 1.3 108* 2.3 1.7 135
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Basin wide percent of average 95* 114
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .1 .5 20 2.1 1.6 131
BIG GOOSE 7990 .3 .8 37* 1.9 2.0 95
BONE SPRINGS DIV 9350 3.6 2.5 144 3.7 2.3 161
BURGESS JUNCTION 7880 .6 1.4 43 2.3 2.1 110
CLOUD PEAK RESERVOIR 9860 1.7 1.4 121* 2.3 2.4 96
DOME LAKE 8880 1.8 1.7 106 2.6 2.3 113
GRAVE SPRINGS 8550 .3 1.0 30* 1.6 2.0 80
HANSEN SAWMILL 8360 .1 .8 12 1.4 1.7 82
MIDDLE POWDER 7760 .1 1.2 8* 1.8 2.4 75
POWDER RIVER PASS 9480 2.8 1.2 233* 3.5 1.8 194
SUCKER CREEK 8880 2.1 1.2 175* 2.9 2.3 126
TIE CREEK 6870 .0 .7 0 1.8 2.3 78
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Basin wide percent of average 94 111
BELLE FOURCHE
BLIND PARK 6890 .0 .5 0* 1.5 2.4 62
COLE CANYON 5910 .0 .7 0 1.4 -M *
NORTH RAPID CREEK 6130 .0 .4 0* 1.3 2.3 57
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Basin wide percent of average 0* 60
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 .7 0* 2.3 2.3 100
DIVIDE PEAK 8860 2.9 1.6 181* 5.3 2.5 212
ELK RIVER 8700 .4 .6 67* 3.1 2.1 148
JOE WRIGHT 10120 2.8 2.4 117* 1.0 3.2 31
NORTH FRENCH CREEK 10130 2.6 3.0 87* 2.8 3.2 87
OLD BATTLE 9920 6.4 2.8 229* 7.3 3.3 221
SAGE CREEK BASIN 7850 .8 .9 89* 4.5 1.4 321
SOUTH BRUSH CREEK 8440 .3 .7 43* 1.7 2.4 71
TOWER 10500 5.8 3.2 181* 4.4 3.7 119
WEBBER SPRINGS 9250 3.5 1.7 206* 4.9 2.9 169
WILLOW CREEK PASS 9540 1.3 1.0 130* 1.7 1.9 89
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Basin wide percent of average 144* 135
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 -M 2.1 * -M 2.3 *
CASPER MTN. 7850 .0 1.6 0* 1.8 2.3 78
DEADMAN HILL 10220 2.7 2.1 129 1.8 2.3 78
DEER PARK 9700 5.7 2.4 238 6.5 2.3 283
LAPRELE CREEK 8375 .3 1.0 30* 1.8 1.8 100
RENO HILL 8500 .1 1.6 6 1.3 2.3 57
ROACH 9700 .7 1.1 64* 2.2 2.2 100
SAND LAKE 10050 3.7 3.0 123* 2.5 2.9 86
SOUTH PASS 9040 3.7 1.4 264* 4.6 2.0 230
WINDY PEAK 7900 .0 .5 0* 1.0 1.6 62
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Basin wide percent of average 115* 119
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 .5 20* 2.6 1.8 144
DIVIDE PEAK 8860 2.9 1.6 181* 5.3 2.5 212
OLD BATTLE 9920 6.4 2.8 229* 7.3 3.3 221
SANDSTONE RS 8150 .6 .5 120* 3.1 2.2 141
WHISKEY PARK 8950 2.2 1.6 138* 3.4 2.7 126
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Basin wide percent of average 174* 174
UPPER GREEN RIVER
BIG SANDY OPENING 9080 4.8 1.1 436* 5.0 1.7 294
BLIND BULL SUM 8900 2.9 1.6 181* 3.1 2.1 148
EAST RIM DIVIDE 7930 .7 .6 117* 1.9 1.3 146
ELKHART PARK G.S. 9400 3.4 .8 425* 4.1 1.8 228
GROS VENTRE SUMMIT 8750 2.3 1.3 177* 2.4 1.7 141
KENDALL R.S. 7740 1.8 .6 300* 3.2 1.4 229
LOOMIS PARK 8240 2.2 .9 244* 3.2 1.7 188
NEW FORK LAKE 8340 1.3 .5 260* 2.1 1.4 150
SNIDER BASIN 8060 2.3 .7 329* 3.1 1.5 207
SPRING CREEK DIVIDE 9000 4.2 1.4 300* 4.6 2.4 192
TRIPLE PEAK 8500 1.9 1.1 173* 2.9 2.1 138
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Basin wide percent of average 262* 186
LOWER GREEN RIVER
HAMS FORK 7840 1.6 .4 400* 3.3 1.4 236
HEWINTA 9500 .6 .8 75* 2.5 2.3 109
HICKERSON PARK 9100 1.6 .4 400* 3.4 1.6 212
HOLE-IN-ROCK 9150 1.7 .4 425* 3.3 1.5 220
INDIAN CREEK 9425 5.0 1.4 357* 5.1 2.4 212
KELLEY R.S. 8180 3.7 .9 411* 4.6 2.0 230
STEEL CREEK PARK 10100 3.4 1.5 227* 3.4 2.2 155
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Basin wide percent of average 303* 191
UPPER BEAR RIVER
BUG LAKE 7950 2.4 1.2 200* 4.5 2.2 205
HAYDEN FORK 9100 3.3 .8 412* 6.0 2.3 261
KELLEY R.S. 8180 3.7 .9 411* 4.6 2.0 230
LILY LAKE 9050 2.4 .9 267* 4.7 2.3 204
MONTE CRISTO 8960 5.1 1.5 340* 5.8 2.6 223
SALT RIVER SUMMIT 7600 1.5 .3 500* 3.5 1.8 194
TRIAL LAKE 9960 -M 1.8 * -M 2.6 *
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Basin wide percent of average 329* 220
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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.