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: NOVEMBER 2 , 2007
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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 .8 .8 100* 5.3 2.2 241
COTTONWOOD CREEK 7600 1.7 1.1 155* 5.1 3.3 155
GRANITE CREEK 6770 .9 .7 129* 4.2 1.9 221
GRASSY LAKE 7265 1.3 1.7 76* 6.8 3.7 184
GROS VENTRE SUMMIT 8750 2.5 1.5 167 4.0 2.0 200
LEWIS LAKE DIVIDE 7850 1.4 1.5 93* 6.3 3.5 180
PHILLIPS BENCH 8200 1.6 1.6 100* 5.4 2.7 200
SALT RIVER SUMMIT 7600 .1 .5 20* 2.5 2.1 119
SNAKE RIVER STATION 6920 .1 .7 14* 5.2 2.4 217
SPRING CREEK DIVIDE 9000 1.8 1.7 106* 3.4 2.9 117
THUMB DIVIDE 7980 .7 1.0 70* 4.6 2.2 209
TOGWOTEE PASS 9580 4.7 2.8 168 5.8 3.0 193
TWO OCEAN PLATEAU 9240 6.2 3.4 182 6.5 3.4 191
WILLOW CREEK 8450 1.9 2.1 90* 6.9 4.0 172
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Basin wide percent of average 122* 183
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 5.0 2.8 179 4.9 2.3 213
BLACK BEAR 8170 4.4 3.1 142* 6.9 3.8 182
CANYON 8090 1.4 .8 175* 4.2 2.0 210
FISHER CREEK 9100 5.8 3.0 193* 7.0 3.6 194
MADISON PLATEAU 7750 1.8 1.8 100* 5.2 2.8 186
NORTHEAST ENTRANCE 7350 .0 .4 0* 3.3 1.7 194
PARKER PEAK 9400 4.7 2.7 174 5.8 2.5 232
SYLVAN LAKE 8420 2.1 2.1 100* 6.1 2.8 218
THUMB DIVIDE 7980 .7 1.0 70* 4.6 2.2 209
TWO OCEAN PLATEAU 9240 6.2 3.4 182 6.5 3.4 191
WHISKEY CREEK 6800 .8 .9 89* 4.7 2.4 196
WHITE MILL 8700 4.3 2.2 195* 5.4 3.0 180
WOLVERINE 7650 .0 .6 0* 3.7 2.0 185
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Basin wide percent of average 150* 198
WIND RIVER
BURROUGHS CREEK 8750 2.0 1.1 182* 4.2 1.8 233
COLD SPRINGS 9630 .0 1.2 0 2.4 2.1 114
DEER PARK 9700 1.4 2.8 50 3.2 2.8 114
HOBBS PARK 10100 1.6 2.4 67 3.2 2.3 139
LITTLE WARM 9370 1.1 1.2 92* 3.2 1.9 168
SOUTH PASS 9040 .2 1.7 12* 2.5 2.3 109
ST. LAWRENCE ALT 8620 .2 1.0 20 1.5 1.9 79
TOGWOTEE PASS 9580 4.7 2.8 168 5.8 3.0 193
TOWNSEND CREEK 8700 .1 1.2 8 2.7 2.3 117
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Basin wide percent of average 73 141
BIGHORN BASIN
BALD MTN. 9380 3.2 2.9 110 3.7 2.6 142
BEAR TRAP MEADOW 8200 .8 .6 133 2.2 1.9 116
BLACKWATER 9780 5.2 3.3 158 5.1 2.9 176
BONE SPRINGS DIV 9350 2.6 2.8 93 4.1 2.7 152
EVENING STAR 9200 4.3 3.0 143* 6.6 3.1 213
GRAVE SPRINGS 8550 1.3 1.3 100 2.8 2.2 127
KIRWIN 9550 3.7 2.0 185 5.1 2.0 255
MARQUETTE 8760 .2 2.1 10 3.3 2.5 132
MIDDLE POWDER 7760 1.8 1.4 129* 2.8 2.8 100
OWL CREEK 8975 .9 .9 100 2.6 1.2 217
POWDER RIVER PASS 9480 1.7 1.4 121 3.5 2.1 167
SHELL CREEK 9580 4.4 2.8 157 5.1 2.2 232
SYLVAN LAKE 8420 2.1 2.1 100* 6.1 2.8 218
SYLVAN ROAD 7120 .0 .6 0* 5.3 2.3 230
TIMBER CREEK 7950 .3 1.2 25 3.5 1.7 206
YOUNTS PEAK 8350 2.3 1.5 153* 5.6 2.0 280
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Basin wide percent of average 116 182
SHOSHONE RIVER
BLACKWATER 9780 5.2 3.3 158 5.1 2.9 176
EVENING STAR 9200 4.3 3.0 143* 6.6 3.1 213
KIRWIN 9550 3.7 2.0 185 5.1 2.0 255
MARQUETTE 8760 .2 2.1 10 3.3 2.5 132
SYLVAN LAKE 8420 2.1 2.1 100* 6.1 2.8 218
SYLVAN ROAD 7120 .0 .6 0* 5.3 2.3 230
YOUNTS PEAK 8350 2.3 1.5 153* 5.6 2.0 280
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Basin wide percent of average 122* 211
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .8 .6 133 2.2 1.9 116
BIG GOOSE 7990 1.6 .9 178* 4.4 2.2 200
BONE SPRINGS DIV 9350 2.6 2.8 93 4.1 2.7 152
BURGESS JUNCTION 7880 1.5 1.7 88 3.6 2.4 150
CLOUD PEAK RESERVOIR 9860 3.1 1.7 182 5.4 2.8 193
DOME LAKE 8880 2.0 2.0 100 4.7 2.7 174
GRAVE SPRINGS 8550 1.3 1.3 100 2.8 2.2 127
HANSEN SAWMILL 8360 .5 .9 56 3.4 1.9 179
MIDDLE POWDER 7760 1.8 1.4 129* 2.8 2.8 100
POWDER RIVER PASS 9480 1.7 1.4 121 3.5 2.1 167
SUCKER CREEK 8880 2.1 1.5 140 3.9 2.6 150
TIE CREEK 6870 .0 .9 0 3.1 2.6 119
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Basin wide percent of average 111 152
BELLE FOURCHE
BLIND PARK 6890 .0 .7 0* 1.5 2.8 54
COLE CANYON 5910 .0 .9 0 1.1 -M *
NORTH RAPID CREEK 6130 .0 .5 0* 1.1 2.6 42
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Basin wide percent of average 0* 48
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 1.0 0* 3.9 2.6 150
DIVIDE PEAK 8860 1.5 1.9 79* 3.3 2.9 114
ELK RIVER 8700 .5 .8 62* 3.2 2.4 133
JOE WRIGHT 10120 2.2 2.8 79 5.4 3.6 150
NORTH FRENCH CREEK 10130 3.1 3.4 91* 4.6 3.6 128
OLD BATTLE 9920 2.9 3.4 85* 4.6 3.9 118
SAGE CREEK BASIN 7850 .0 1.1 0* 2.8 1.7 165
SOUTH BRUSH CREEK 8440 1.1 .9 122* 3.8 2.8 136
TOWER 10500 3.2 4.0 80* 5.2 4.3 121
WEBBER SPRINGS 9250 1.4 2.1 67* 3.9 3.4 115
WILLOW CREEK PASS 9540 2.2 1.3 169* 3.2 2.2 145
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Basin wide percent of average 80* 131
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 1.6 2.4 67* 3.1 2.7 115
CASPER MTN. 7850 1.1 1.9 58 3.7 2.7 137
DEADMAN HILL 10220 2.7 2.4 113 3.6 2.7 133
DEER PARK 9700 1.4 2.8 50 3.2 2.8 114
LAPRELE CREEK 8375 .3 1.2 25 2.2 2.1 105
RENO HILL 8500 2.1 1.9 111 4.0 2.7 148
ROACH 9700 1.9 1.4 136* 3.4 2.5 136
SAND LAKE 10050 4.3 3.6 119* 5.0 3.3 152
SOUTH PASS 9040 .2 1.7 12* 2.5 2.3 109
WINDY PEAK 7900 .5 .7 71* 1.7 1.9 89
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Basin wide percent of average 80 126
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M .6 * 2.3 2.1 110
DIVIDE PEAK 8860 1.5 1.9 79* 3.3 2.9 114
OLD BATTLE 9920 2.9 3.4 85* 4.6 3.9 118
SANDSTONE RS 8150 .0 .6 0* 2.4 2.5 96
WHISKEY PARK 8950 1.2 1.9 63* 4.3 3.2 134
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Basin wide percent of average 72* 116
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.3 1.4 93* 2.0 2.0 100
BLIND BULL SUM 8900 1.8 2.0 90* 3.2 2.4 133
EAST RIM DIVIDE 7930 .0 .8 0* 2.0 1.5 133
ELKHART PARK G.S. 9400 .9 1.0 90* 2.3 2.1 110
GROS VENTRE SUMMIT 8750 2.5 1.5 167 4.0 2.0 200
KENDALL R.S. 7740 .2 .8 25* 2.3 1.7 135
LOOMIS PARK 8240 .6 1.1 55* 2.4 2.0 120
NEW FORK LAKE 8340 .5 .7 71* 2.0 1.7 118
SNIDER BASIN 8060 .2 .9 22* 1.8 1.8 100
SPRING CREEK DIVIDE 9000 1.8 1.7 106* 3.4 2.9 117
TRIPLE PEAK 8500 2.2 1.4 157* 4.6 2.4 192
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Basin wide percent of average 90* 133
LOWER GREEN RIVER
HAMS FORK 7840 .0 .6 0* 1.6 1.6 100
HEWINTA 9500 -M .9 * 4.4 2.6 169
HICKERSON PARK 9100 .0 .5 0* 2.8 1.8 156
HOLE-IN-ROCK 9150 .0 .5 0* 3.4 1.7 200
INDIAN CREEK 9425 1.1 1.8 61* 2.7 2.8 96
KELLEY R.S. 8180 .2 1.1 18* 2.8 2.3 122
STEEL CREEK PARK 10100 2.4 1.8 133* 4.8 2.5 192
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Basin wide percent of average 59* 147
UPPER BEAR RIVER
BUG LAKE 7950 -M 1.4 * 1.2 2.5 48
HAYDEN FORK 9100 .2 1.0 20* 3.6 2.6 138
KELLEY R.S. 8180 .2 1.1 18* 2.8 2.3 122
LILY LAKE 9050 .1 1.1 9* 3.7 2.6 142
MONTE CRISTO 8960 .1 1.8 6* 3.0 3.0 100
SALT RIVER SUMMIT 7600 .1 .5 20* 2.5 2.1 119
TRIAL LAKE 9960 1.1 2.1 52* 3.0 3.0 100
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Basin wide percent of average 24* 109
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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.