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 8 , 2004
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 1.9 1.4 136* 3.3 3.0 110
COTTONWOOD CREEK 7600 2.4 1.7 141* 4.6 4.2 110
GRANITE CREEK 6770 1.7 1.1 155* 4.3 2.6 165
GRASSY LAKE 7265 3.7 2.7 137* 4.9 4.9 100
GROS VENTRE SUMMIT 8750 2.6 1.9 137 3.0 2.5 120
LEWIS LAKE DIVIDE 7850 4.3 2.5 172* 5.2 4.8 108
PHILLIPS BENCH 8200 3.3 2.5 132* 4.4 3.6 122
SALT RIVER SUMMIT 7600 1.5 .8 188* 4.0 2.7 148
SNAKE RIVER STATION 6920 1.1 1.2 92* 3.2 3.3 97
SPRING CREEK DIVIDE 9000 5.0 2.6 192* 5.6 3.8 147
THUMB DIVIDE 7980 2.1 1.5 140* 2.8 2.9 97
TOGWOTEE PASS 9580 3.3 3.6 92 3.4 3.9 87
TWO OCEAN PLATEAU 9240 5.3 4.3 123 4.9 4.4 111
WILLOW CREEK 8450 4.2 3.1 135* 6.3 5.1 124
----- -----
Basin wide percent of average 137* 116
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.1 3.7 84 3.3 3.1 106
BLACK BEAR 8170 6.7 4.2 160 7.3 5.2 140
CANYON 8090 1.5 1.2 125* 2.6 2.6 100
FISHER CREEK 9100 3.9 4.0 98 5.2 4.9 106
MADISON PLATEAU 7750 3.5 2.5 140* 4.8 3.7 130
NORTHEAST ENTRANCE 7350 .4 .7 57* 1.5 2.2 68
PARKER PEAK 9400 3.0 3.5 86 3.0 3.1 97
SYLVAN LAKE 8420 3.2 3.0 107 4.3 3.7 116
THUMB DIVIDE 7980 2.1 1.5 140* 2.8 2.9 97
TWO OCEAN PLATEAU 9240 5.3 4.3 123 4.9 4.4 111
WHISKEY CREEK 6800 2.0 1.4 143* 4.0 3.1 129
WHITE MILL 8700 2.7 3.0 90 3.4 3.9 87
WOLVERINE 7650 .3 1.0 30* 1.8 2.5 72
----- -----
Basin wide percent of average 111 108
WIND RIVER
BURROUGHS CREEK 8750 1.6 1.6 100 2.0 2.4 83
COLD SPRINGS 9630 1.4 1.6 87 1.8 2.5 72
DEER PARK 9700 6.4 3.2 200 7.5 3.7 203
HOBBS PARK 10100 3.3 3.0 110 3.4 2.8 121
LITTLE WARM 9370 1.6 1.7 94 2.0 2.5 80
SOUTH PASS 9040 4.4 2.4 183 5.6 3.1 181
ST. LAWRENCE ALT 8620 .9 1.4 64 1.8 2.2 82
TOGWOTEE PASS 9580 3.3 3.6 92 3.4 3.9 87
TOWNSEND CREEK 8700 1.5 1.6 94 4.1 2.7 152
----- -----
Basin wide percent of average 121 122
BIGHORN BASIN
BALD MTN. 9380 3.8 3.6 106 4.1 3.2 128
BEAR TRAP MEADOW 8200 .9 .8 112 2.8 2.2 127
BLACKWATER 9780 3.4 4.2 81 3.7 3.8 97
BONE SPRINGS DIV 9350 4.4 3.4 129 4.6 3.1 148
EVENING STAR 9200 3.4 4.0 85 4.7 4.1 115
GRAVE SPRINGS 8550 1.3 1.6 81 2.6 2.5 104
KIRWIN 9550 1.4 2.5 56 1.7 2.4 71
MARQUETTE 8760 1.2 2.4 50 1.6 2.8 57
MIDDLE POWDER 7760 1.4 1.9 74 2.7 3.2 84
OWL CREEK 8975 .5 1.2 42 .9 1.4 64
POWDER RIVER PASS 9480 3.4 1.8 189 4.4 2.5 176
SHELL CREEK 9580 3.8 3.3 115 3.6 2.7 133
SYLVAN LAKE 8420 3.2 3.0 107 4.3 3.7 116
SYLVAN ROAD 7120 1.2 1.1 109* 3.0 3.2 94
TIMBER CREEK 7950 .0 1.5 0 .5 2.0 25
YOUNTS PEAK 8350 1.6 2.1 76 2.8 2.7 104
----- -----
Basin wide percent of average 91 105
SHOSHONE RIVER
BLACKWATER 9780 3.4 4.2 81 3.7 3.8 97
EVENING STAR 9200 3.4 4.0 85 4.7 4.1 115
KIRWIN 9550 1.4 2.5 56 1.7 2.4 71
MARQUETTE 8760 1.2 2.4 50 1.6 2.8 57
SYLVAN LAKE 8420 3.2 3.0 107 4.3 3.7 116
SYLVAN ROAD 7120 1.2 1.1 109* 3.0 3.2 94
YOUNTS PEAK 8350 1.6 2.1 76 2.8 2.7 104
----- -----
Basin wide percent of average 80 96
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .9 .8 112 2.8 2.2 127
BIG GOOSE 7990 1.2 1.2 100* 2.8 2.4 117
BONE SPRINGS DIV 9350 4.4 3.4 129 4.6 3.1 148
BURGESS JUNCTION 7880 1.5 2.2 68 3.2 2.7 119
CLOUD PEAK RESERVOIR 9860 3.0 2.2 136 3.3 3.2 103
DOME LAKE 8880 -M 2.5 * -M 3.1 *
GRAVE SPRINGS 8550 1.3 1.6 81 2.6 2.5 104
HANSEN SAWMILL 8360 .5 1.1 45 1.8 2.2 82
MIDDLE POWDER 7760 1.4 1.9 74 2.7 3.2 84
POWDER RIVER PASS 9480 3.4 1.8 189 4.4 2.5 176
SUCKER CREEK 8880 3.2 1.9 168 4.1 3.0 137
TIE CREEK 6870 .0 1.1 0 2.5 2.9 86
----- -----
Basin wide percent of average 108 116
BELLE FOURCHE
BLIND PARK 6890 .6 1.1 55 2.6 3.1 84
COLE CANYON 5910 .0 1.1 0 2.5 -M *
NORTH RAPID CREEK 6130 .3 .8 37* 2.1 2.9 72
----- -----
Basin wide percent of average 30 78
UPPER N. PLATTE RIVER
COLUMBINE 9160 .7 1.8 39* 3.4 3.4 100
DIVIDE PEAK 8860 4.2 2.5 168 6.9 3.6 192
ELK RIVER 8700 1.2 1.1 109* 4.4 3.0 147
JOE WRIGHT 10120 4.3 3.6 119 1.2 4.5 27
NORTH FRENCH CREEK 10130 4.1 4.3 95 4.7 4.4 107
OLD BATTLE 9920 7.8 4.5 173 9.4 5.0 188
SAGE CREEK BASIN 7850 1.6 1.4 114 5.7 2.1 271
SOUTH BRUSH CREEK 8440 .8 1.2 67* 2.5 3.3 76
TOWER 10500 8.0 5.7 140 7.3 5.6 130
WEBBER SPRINGS 9250 4.6 3.0 153 6.7 4.3 156
WILLOW CREEK PASS 9540 2.9 1.8 161 2.4 2.6 92
----- -----
Basin wide percent of average 130 131
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 1.9 3.0 63 2.8 3.4 82
CASPER MTN. 7850 1.5 2.5 60 3.2 3.2 100
DEADMAN HILL 10220 4.1 3.0 137 3.1 3.2 97
DEER PARK 9700 6.4 3.2 200 7.5 3.7 203
LAPRELE CREEK 8375 .8 1.6 50 2.8 2.5 112
RENO HILL 8500 1.2 2.4 50 2.4 3.2 75
ROACH 9700 1.3 2.0 65 3.0 3.1 97
SAND LAKE 10050 5.2 4.7 111 4.1 4.1 100
SOUTH PASS 9040 4.4 2.4 183 5.6 3.1 181
WINDY PEAK 7900 .2 1.0 20 1.8 2.2 82
----- -----
Basin wide percent of average 105 115
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.0 .8 125* 4.1 2.6 158
DIVIDE PEAK 8860 4.2 2.5 168 6.9 3.6 192
OLD BATTLE 9920 7.8 4.5 173 9.4 5.0 188
SANDSTONE RS 8150 1.0 1.0 100* 4.9 3.1 158
WHISKEY PARK 8950 3.7 2.8 132* 5.5 4.1 134
----- -----
Basin wide percent of average 153* 167
UPPER GREEN RIVER
BIG SANDY OPENING 9080 5.1 1.8 283 5.4 2.5 216
BLIND BULL SUM 8900 3.6 2.8 129* 3.7 3.3 112
EAST RIM DIVIDE 7930 .9 1.2 75* 2.1 1.9 111
ELKHART PARK G.S. 9400 3.7 1.5 247 4.5 2.6 173
GROS VENTRE SUMMIT 8750 2.6 1.9 137 3.0 2.5 120
KENDALL R.S. 7740 1.9 1.2 158* 3.5 2.2 159
LOOMIS PARK 8240 2.3 1.6 144* 3.5 2.6 135
NEW FORK LAKE 8340 1.5 1.1 136* 2.4 2.1 114
SNIDER BASIN 8060 2.4 1.4 171* 3.5 2.4 146
SPRING CREEK DIVIDE 9000 5.0 2.6 192* 5.6 3.8 147
TRIPLE PEAK 8500 2.6 2.3 113* 4.0 3.3 121
----- -----
Basin wide percent of average 163* 141
LOWER GREEN RIVER
HAMS FORK 7840 1.8 .8 225* 3.8 2.0 190
HEWINTA 9500 .5 1.1 45* 2.9 3.1 94
HICKERSON PARK 9100 1.4 .7 200* 4.2 2.1 200
HOLE-IN-ROCK 9150 1.8 .8 225 3.8 2.0 190
INDIAN CREEK 9425 6.0 2.7 222* 6.2 3.7 168
KELLEY R.S. 8180 4.3 1.6 269* 5.7 3.0 190
STEEL CREEK PARK 10100 3.7 2.2 168 4.2 3.1 135
----- -----
Basin wide percent of average 197* 162
UPPER BEAR RIVER
BUG LAKE 7950 2.6 1.8 144* 5.1 3.2 159
HAYDEN FORK 9100 3.3 1.4 236* 7.1 3.3 215
KELLEY R.S. 8180 4.3 1.6 269* 5.7 3.0 190
LILY LAKE 9050 2.6 1.4 186* 5.0 3.2 156
MONTE CRISTO 8960 5.9 2.4 246* 7.2 3.9 185
SALT RIVER SUMMIT 7600 1.5 .8 188* 4.0 2.7 148
TRIAL LAKE 9960 6.9 2.8 246 8.9 3.8 234
----- -----
Basin wide percent of average 222* 186
-----------------------------------------------------------------------------
-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.