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 27 , 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 1.8 122
COTTONWOOD CREEK 7600 1.1 .7 157* 2.8 2.6 108
GRANITE CREEK 6770 1.6 .5 320* 3.2 1.5 213
GRASSY LAKE 7265 2.4 1.1 218* 3.4 2.9 117
GROS VENTRE SUMMIT 8750 2.1 1.2 175* 2.2 1.6 138
LEWIS LAKE DIVIDE 7850 3.6 .9 400* 4.2 2.8 150
PHILLIPS BENCH 8200 2.7 1.1 245* 3.3 2.1 157
SALT RIVER SUMMIT 7600 1.3 .3 433* 3.0 1.7 176
SNAKE RIVER STATION 6920 .8 .4 200* 2.3 1.9 121
SPRING CREEK DIVIDE 9000 3.6 1.2 300* 4.0 2.3 174
THUMB DIVIDE 7980 1.7 .7 243* 2.2 1.8 122
TOGWOTEE PASS 9580 2.4 2.2 109* 2.5 2.4 104
TWO OCEAN PLATEAU 9240 3.4 2.6 131* 3.2 2.7 119
WILLOW CREEK 8450 2.0 1.5 133* 3.5 3.2 109
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Basin wide percent of average 200* 134
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 1.8 2.3 78* 2.1 1.8 117
BLACK BEAR 8170 5.1 2.3 222* 5.6 3.0 187
CANYON 8090 .9 .6 150* 2.0 1.6 125
FISHER CREEK 9100 2.5 2.3 109* 3.4 2.9 117
MADISON PLATEAU 7750 2.8 1.3 215* 3.9 2.2 177
NORTHEAST ENTRANCE 7350 .2 .2 100* .9 1.3 69
PARKER PEAK 9400 1.9 2.2 86* 2.0 2.0 100
SYLVAN LAKE 8420 1.6 1.7 94* 2.5 2.3 109
THUMB DIVIDE 7980 1.7 .7 243* 2.2 1.8 122
TWO OCEAN PLATEAU 9240 3.4 2.6 131* 3.2 2.7 119
WHISKEY CREEK 6800 -M .6 * -M 1.9 *
WHITE MILL 8700 1.5 1.7 88* 2.1 2.3 91
WOLVERINE 7650 .3 .4 75* 1.3 1.6 81
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Basin wide percent of average 130* 122
WIND RIVER
BURROUGHS CREEK 8750 1.2 .8 150* 1.4 1.4 100
COLD SPRINGS 9630 1.3 .8 162* 1.8 1.7 106
DEER PARK 9700 4.5 2.1 214 5.4 2.2 245
HOBBS PARK 10100 2.6 1.8 144 2.8 1.8 156
LITTLE WARM 9370 1.3 .9 144* 1.6 1.5 107
SOUTH PASS 9040 3.2 1.2 267* 4.0 1.8 222
ST. LAWRENCE ALT 8620 .7 .7 100* 1.5 1.5 100
TOGWOTEE PASS 9580 2.4 2.2 109* 2.5 2.4 104
TOWNSEND CREEK 8700 1.0 .9 111* 3.1 1.8 172
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Basin wide percent of average 160* 150
BIGHORN BASIN
BALD MTN. 9380 2.8 2.4 117 3.3 2.1 157
BEAR TRAP MEADOW 8200 .6 .5 120* 2.2 1.5 147
BLACKWATER 9780 2.3 2.7 85* 2.6 2.3 113
BONE SPRINGS DIV 9350 3.3 2.3 143 3.5 2.2 159
EVENING STAR 9200 2.2 2.3 96* 3.1 2.4 129
GRAVE SPRINGS 8550 .5 .9 56* 1.6 1.8 89
KIRWIN 9550 1.2 1.6 75 1.5 1.6 94
MARQUETTE 8760 .3 1.7 18 .9 2.0 45
MIDDLE POWDER 7760 .4 1.1 36* 1.8 2.3 78
OWL CREEK 8975 .0 .7 0 .4 1.0 40
POWDER RIVER PASS 9480 2.6 1.1 236* 3.3 1.7 194
SHELL CREEK 9580 2.9 2.4 121 2.9 1.8 161
SYLVAN LAKE 8420 1.6 1.7 94* 2.5 2.3 109
SYLVAN ROAD 7120 .5 .4 125* 2.1 1.8 117
TIMBER CREEK 7950 .0 .8 0 .5 1.4 36
YOUNTS PEAK 8350 1.3 1.2 108* 2.3 1.6 144
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Basin wide percent of average 95* 116
SHOSHONE RIVER
BLACKWATER 9780 2.3 2.7 85* 2.6 2.3 113
EVENING STAR 9200 2.2 2.3 96* 3.1 2.4 129
KIRWIN 9550 1.2 1.6 75 1.5 1.6 94
MARQUETTE 8760 .3 1.7 18 .9 2.0 45
SYLVAN LAKE 8420 1.6 1.7 94* 2.5 2.3 109
SYLVAN ROAD 7120 .5 .4 125* 2.1 1.8 117
YOUNTS PEAK 8350 1.3 1.2 108* 2.3 1.6 144
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Basin wide percent of average 81* 107
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .6 .5 120* 2.2 1.5 147
BIG GOOSE 7990 .4 .7 57* 1.8 1.8 100
BONE SPRINGS DIV 9350 3.3 2.3 143 3.5 2.2 159
BURGESS JUNCTION 7880 -M 1.3 * -M 1.9 *
CLOUD PEAK RESERVOIR 9860 1.9 1.2 158* 2.4 2.3 104
DOME LAKE 8880 1.8 1.5 120 2.6 2.2 118
GRAVE SPRINGS 8550 .5 .9 56* 1.6 1.8 89
HANSEN SAWMILL 8360 .4 .7 57 1.5 1.6 94
MIDDLE POWDER 7760 .4 1.1 36* 1.8 2.3 78
POWDER RIVER PASS 9480 2.6 1.1 236* 3.3 1.7 194
SUCKER CREEK 8880 2.1 1.1 191* 2.9 2.1 138
TIE CREEK 6870 -M .6 * -M 2.2 *
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Basin wide percent of average 126* 121
BELLE FOURCHE
BLIND PARK 6890 .0 .4 0* 1.5 2.3 65
COLE CANYON 5910 .0 .6 0 1.2 -M *
NORTH RAPID CREEK 6130 .0 .4 0* 1.2 2.2 55
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Basin wide percent of average 0* 60
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 .6 0* 2.1 2.1 100
DIVIDE PEAK 8860 2.3 1.5 153* 4.6 2.3 200
ELK RIVER 8700 .6 .5 120* 2.8 1.9 147
JOE WRIGHT 10120 2.7 2.1 129* .9 2.9 31
NORTH FRENCH CREEK 10130 2.3 2.7 85* 2.7 2.9 93
OLD BATTLE 9920 5.5 2.6 212* 6.5 3.1 210
SAGE CREEK BASIN 7850 .9 .8 112* 3.9 1.3 300
SOUTH BRUSH CREEK 8440 .4 .6 67* 1.5 2.3 65
TOWER 10500 5.0 2.9 172* 3.9 3.4 115
WEBBER SPRINGS 9250 3.1 1.6 194* 4.5 2.7 167
WILLOW CREEK PASS 9540 1.2 .9 133* 1.5 1.8 83
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Basin wide percent of average 143* 131
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 .6 1.9 32* 1.5 2.2 68
CASPER MTN. 7850 .3 1.4 21* 1.7 2.2 77
DEADMAN HILL 10220 2.8 1.9 147* 1.8 2.2 82
DEER PARK 9700 4.5 2.1 214 5.4 2.2 245
LAPRELE CREEK 8375 .4 .9 44* 1.8 1.7 106
RENO HILL 8500 .5 1.5 33* 1.4 2.2 64
ROACH 9700 .7 1.0 70* 2.1 2.0 105
SAND LAKE 10050 3.5 2.8 125* 2.4 2.7 89
SOUTH PASS 9040 3.2 1.2 267* 4.0 1.8 222
WINDY PEAK 7900 .0 .5 0* 1.1 1.5 73
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Basin wide percent of average 109* 112
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 .4 25* 2.2 1.7 129
DIVIDE PEAK 8860 2.3 1.5 153* 4.6 2.3 200
OLD BATTLE 9920 5.5 2.6 212* 6.5 3.1 210
SANDSTONE RS 8150 .4 .5 80* 2.5 2.0 125
WHISKEY PARK 8950 1.8 1.4 129* 3.0 2.5 120
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Basin wide percent of average 158* 162
UPPER GREEN RIVER
BIG SANDY OPENING 9080 -M 1.0 * 4.5 1.6 281
BLIND BULL SUM 8900 2.4 1.4 171* 2.6 1.9 137
EAST RIM DIVIDE 7930 .7 .5 140* 1.5 1.2 125
ELKHART PARK G.S. 9400 3.0 .7 429* 3.7 1.7 218
GROS VENTRE SUMMIT 8750 2.1 1.2 175* 2.2 1.6 138
KENDALL R.S. 7740 1.6 .5 320* 2.7 1.3 208
LOOMIS PARK 8240 2.0 .8 250* 2.7 1.6 169
NEW FORK LAKE 8340 1.3 .4 325* 1.8 1.3 138
SNIDER BASIN 8060 2.1 .6 350* 2.8 1.4 200
SPRING CREEK DIVIDE 9000 3.6 1.2 300* 4.0 2.3 174
TRIPLE PEAK 8500 1.6 1.0 160* 2.4 1.9 126
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Basin wide percent of average 246* 174
LOWER GREEN RIVER
HAMS FORK 7840 1.5 .4 375* 3.0 1.3 231
HEWINTA 9500 .4 .8 50* 2.4 2.1 114
HICKERSON PARK 9100 1.1 .4 275* 2.9 1.5 193
HOLE-IN-ROCK 9150 1.1 .4 275* 2.6 1.4 186
INDIAN CREEK 9425 4.3 1.2 358* 4.4 2.3 191
KELLEY R.S. 8180 3.3 .8 412* 4.0 1.8 222
STEEL CREEK PARK 10100 2.8 1.4 200* 3.0 2.0 150
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Basin wide percent of average 269* 180
UPPER BEAR RIVER
BUG LAKE 7950 2.2 1.1 200* 4.0 2.0 200
HAYDEN FORK 9100 2.8 .8 350* 5.4 2.1 257
KELLEY R.S. 8180 3.3 .8 412* 4.0 1.8 222
LILY LAKE 9050 1.8 .8 225* 4.0 2.1 190
MONTE CRISTO 8960 -M 1.4 * -M 2.4 *
SALT RIVER SUMMIT 7600 1.3 .3 433* 3.0 1.7 176
TRIAL LAKE 9960 5.5 1.6 344* 7.0 2.4 292
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Basin wide percent of average 313* 226
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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.