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 MONDAY: NOVEMBER 1 , 2004
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 1.8 .7 257* 3.3 2.1 157
COTTONWOOD CREEK 7600 2.4 1.0 240* 4.5 3.1 145
GRANITE CREEK 6770 1.6 .6 267* 4.2 1.8 233
GRASSY LAKE 7265 3.9 1.5 260* 4.9 3.5 140
GROS VENTRE SUMMIT 8750 2.3 1.4 164* 2.8 1.9 147
LEWIS LAKE DIVIDE 7850 4.3 1.3 331* 5.1 3.3 155
PHILLIPS BENCH 8200 3.3 1.5 220* 4.3 2.5 172
SALT RIVER SUMMIT 7600 1.6 .4 400* 3.9 2.0 195
SNAKE RIVER STATION 6920 .9 .6 150* 3.0 2.3 130
SPRING CREEK DIVIDE 9000 4.9 1.6 306* 5.5 2.7 204
THUMB DIVIDE 7980 2.0 .9 222* 2.7 2.1 129
TOGWOTEE PASS 9580 3.1 2.7 115* 3.3 2.9 114
TWO OCEAN PLATEAU 9240 5.3 3.2 166 4.8 3.2 150
WILLOW CREEK 8450 4.6 1.9 242* 6.1 3.8 161
----- -----
Basin wide percent of average 218* 157
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 2.5 2.7 93 2.9 2.2 132
BLACK BEAR 8170 6.6 2.9 228* 7.1 3.6 197
CANYON 8090 1.4 .7 200* 2.4 1.9 126
FISHER CREEK 9100 3.6 2.8 129* 4.4 3.4 129
MADISON PLATEAU 7750 3.2 1.7 188* 4.5 2.6 173
NORTHEAST ENTRANCE 7350 .1 .3 33* 1.4 1.6 87
PARKER PEAK 9400 2.7 2.6 104 2.7 2.4 113
SYLVAN LAKE 8420 3.0 2.0 150* 4.1 2.7 152
THUMB DIVIDE 7980 2.0 .9 222* 2.7 2.1 129
TWO OCEAN PLATEAU 9240 5.3 3.2 166 4.8 3.2 150
WHISKEY CREEK 6800 1.8 .8 225* 3.6 2.3 157
WHITE MILL 8700 2.5 2.1 119* 2.8 2.8 100
WOLVERINE 7650 .5 .5 100* 1.6 1.9 84
----- -----
Basin wide percent of average 152* 138
WIND RIVER
BURROUGHS CREEK 8750 1.4 1.0 140* 1.6 1.7 94
COLD SPRINGS 9630 1.1 1.1 100 1.8 2.0 90
DEER PARK 9700 6.5 2.7 241 7.4 2.6 285
HOBBS PARK 10100 3.3 2.3 143 3.3 2.2 150
LITTLE WARM 9370 1.5 1.1 136* 1.9 1.8 106
SOUTH PASS 9040 4.4 1.6 275* 5.5 2.2 250
ST. LAWRENCE ALT 8620 .7 .9 78 1.8 1.8 100
TOGWOTEE PASS 9580 3.1 2.7 115* 3.3 2.9 114
TOWNSEND CREEK 8700 1.6 1.1 145 4.0 2.2 182
----- -----
Basin wide percent of average 163 158
BIGHORN BASIN
BALD MTN. 9380 3.6 2.8 129 3.6 2.5 144
BEAR TRAP MEADOW 8200 .7 .6 117 2.6 1.8 144
BLACKWATER 9780 3.0 3.2 94 3.1 2.8 111
BONE SPRINGS DIV 9350 4.3 2.7 159 4.0 2.6 154
EVENING STAR 9200 3.1 2.8 111* 4.2 2.9 145
GRAVE SPRINGS 8550 1.1 1.2 92 2.4 2.2 109
KIRWIN 9550 1.2 1.9 63 1.3 1.9 68
MARQUETTE 8760 .8 2.0 40 1.5 2.4 62
MIDDLE POWDER 7760 1.5 1.3 115* 2.6 2.7 96
OWL CREEK 8975 .3 .9 33 .7 1.2 58
POWDER RIVER PASS 9480 3.3 1.3 254 4.0 2.0 200
SHELL CREEK 9580 3.6 2.7 133 3.4 2.1 162
SYLVAN LAKE 8420 3.0 2.0 150* 4.1 2.7 152
SYLVAN ROAD 7120 1.2 .5 240* 2.9 2.2 132
TIMBER CREEK 7950 .0 1.1 0 .6 1.7 35
YOUNTS PEAK 8350 1.5 1.4 107* 2.6 1.9 137
----- -----
Basin wide percent of average 113 122
SHOSHONE RIVER
BLACKWATER 9780 3.0 3.2 94 3.1 2.8 111
EVENING STAR 9200 3.1 2.8 111* 4.2 2.9 145
KIRWIN 9550 1.2 1.9 63 1.3 1.9 68
MARQUETTE 8760 .8 2.0 40 1.5 2.4 62
SYLVAN LAKE 8420 3.0 2.0 150* 4.1 2.7 152
SYLVAN ROAD 7120 1.2 .5 240* 2.9 2.2 132
YOUNTS PEAK 8350 1.5 1.4 107* 2.6 1.9 137
----- -----
Basin wide percent of average 100* 117
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .7 .6 117 2.6 1.8 144
BIG GOOSE 7990 .9 .9 100* 2.5 2.2 114
BONE SPRINGS DIV 9350 4.3 2.7 159 4.0 2.6 154
BURGESS JUNCTION 7880 1.3 1.6 81 2.6 2.3 113
CLOUD PEAK RESERVOIR 9860 2.6 1.6 162* 2.9 2.7 107
DOME LAKE 8880 2.4 1.9 126 3.4 2.6 131
GRAVE SPRINGS 8550 1.1 1.2 92 2.4 2.2 109
HANSEN SAWMILL 8360 .5 .9 56 1.6 1.9 84
MIDDLE POWDER 7760 1.5 1.3 115* 2.6 2.7 96
POWDER RIVER PASS 9480 3.3 1.3 254 4.0 2.0 200
SUCKER CREEK 8880 2.9 1.4 207 3.6 2.5 144
TIE CREEK 6870 .4 .9 44 2.3 2.6 88
----- -----
Basin wide percent of average 134 123
BELLE FOURCHE
BLIND PARK 6890 .6 .6 100* 2.6 2.7 96
COLE CANYON 5910 .5 .9 56 2.3 -M *
NORTH RAPID CREEK 6130 .6 .5 120* 2.0 2.6 77
----- -----
Basin wide percent of average 85* 87
UPPER N. PLATTE RIVER
COLUMBINE 9160 .6 .9 67* 3.1 2.5 124
DIVIDE PEAK 8860 4.3 1.8 239* 6.7 2.8 239
ELK RIVER 8700 1.1 .7 157* 3.9 2.3 170
JOE WRIGHT 10120 3.9 2.7 144 1.6 3.5 46
NORTH FRENCH CREEK 10130 4.1 3.3 124* 4.3 3.5 123
OLD BATTLE 9920 7.8 3.2 244* 8.8 3.7 238
SAGE CREEK BASIN 7850 1.7 1.0 170* 5.7 1.6 356
SOUTH BRUSH CREEK 8440 .7 .8 87* 2.2 2.7 81
TOWER 10500 8.0 3.7 216* 7.1 4.1 173
WEBBER SPRINGS 9250 4.6 2.0 230* 6.1 3.2 191
WILLOW CREEK PASS 9540 1.8 1.2 150* 2.1 2.1 100
----- -----
Basin wide percent of average 181* 161
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 1.6 2.3 70* 2.5 2.6 96
CASPER MTN. 7850 1.6 1.8 89 2.8 2.6 108
DEADMAN HILL 10220 3.5 2.3 152 2.6 2.6 100
DEER PARK 9700 6.5 2.7 241 7.4 2.6 285
LAPRELE CREEK 8375 -M 1.1 * 2.1 2.0 105
RENO HILL 8500 1.0 1.8 56 2.2 2.6 85
ROACH 9700 1.2 1.3 92* 2.9 2.4 121
SAND LAKE 10050 5.1 3.4 150* 3.8 3.2 119
SOUTH PASS 9040 4.4 1.6 275* 5.5 2.2 250
WINDY PEAK 7900 .0 .6 0* 1.5 1.8 83
----- -----
Basin wide percent of average 140* 135
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .9 .6 150* 3.6 2.0 180
DIVIDE PEAK 8860 4.3 1.8 239* 6.7 2.8 239
OLD BATTLE 9920 7.8 3.2 244* 8.8 3.7 238
SANDSTONE RS 8150 1.6 .6 267* 4.7 2.4 196
WHISKEY PARK 8950 3.7 1.8 206* 5.3 3.0 177
----- -----
Basin wide percent of average 229* 209
UPPER GREEN RIVER
BIG SANDY OPENING 9080 5.0 1.3 385* 5.3 1.9 279
BLIND BULL SUM 8900 3.6 1.8 200* 3.6 2.3 157
EAST RIM DIVIDE 7930 .6 .7 86* 2.1 1.4 150
ELKHART PARK G.S. 9400 3.4 .9 378* 4.3 2.0 215
GROS VENTRE SUMMIT 8750 2.3 1.4 164* 2.8 1.9 147
KENDALL R.S. 7740 1.8 .7 257* 3.5 1.6 219
LOOMIS PARK 8240 2.2 1.0 220* 3.3 1.9 174
NEW FORK LAKE 8340 1.4 .6 233* 2.2 1.6 138
SNIDER BASIN 8060 2.4 .8 300* 3.3 1.7 194
SPRING CREEK DIVIDE 9000 4.9 1.6 306* 5.5 2.7 204
TRIPLE PEAK 8500 2.6 1.3 200* 3.9 2.3 170
----- -----
Basin wide percent of average 250* 187
LOWER GREEN RIVER
HAMS FORK 7840 1.7 .5 340* 3.8 1.5 253
HEWINTA 9500 .7 .9 78* 3.0 2.5 120
HICKERSON PARK 9100 1.5 .5 300* 3.5 1.8 194
HOLE-IN-ROCK 9150 1.7 .5 340* 3.4 1.7 200
INDIAN CREEK 9425 6.0 1.6 375* 6.0 2.7 222
KELLEY R.S. 8180 4.4 1.0 440* 5.6 2.2 255
STEEL CREEK PARK 10100 3.8 1.7 224* 3.7 2.4 154
----- -----
Basin wide percent of average 296* 196
UPPER BEAR RIVER
BUG LAKE 7950 2.8 1.3 215* 5.0 2.4 208
HAYDEN FORK 9100 3.8 .9 422* 6.6 2.5 264
KELLEY R.S. 8180 4.4 1.0 440* 5.6 2.2 255
LILY LAKE 9050 2.7 1.0 270* 5.1 2.5 204
MONTE CRISTO 8960 6.2 1.7 365* 6.8 2.9 234
SALT RIVER SUMMIT 7600 1.6 .4 400* 3.9 2.0 195
TRIAL LAKE 9960 -M 2.0 * -M 2.9 *
----- -----
Basin wide percent of average 341* 228
-----------------------------------------------------------------------------
-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.
----------------------------------------------------------------------------
-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.