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 SUNDAY: NOVEMBER 6 , 2011
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 .4 1.1 36* 4.1 2.6 158
COTTONWOOD CREEK 7670 .5 1.4 36* 5.1 3.8 134
GRAND TARGHEE 9260 3.5 -M * 5.7 -M *
GRANITE CREEK 6770 .2 .8 25* 2.6 2.3 113
GRASSY LAKE 7265 1.5 2.2 68* 5.7 4.3 133
GROS VENTRE SUMMIT 8750 .7 1.8 39 2.4 2.3 104
GUNSIGHT PASS 9820 1.1 -M * 2.8 -M *
LEWIS LAKE DIVIDE 7850 .5 2.0 25* 4.8 4.1 117
PHILLIPS BENCH 8200 .0 2.1 0* 2.5 3.1 81
SALT RIVER SUMMIT 7760 .4 .6 67* 2.2 2.4 92
SNAKE RIVER STATION 6920 .2 1.0 20* 4.2 2.9 145
SPRING CREEK DIVIDE 9000 1.5 2.2 68* 3.5 3.3 106
THUMB DIVIDE 7980 .3 1.2 25* 3.2 2.6 123
TOGWOTEE PASS 9580 1.9 3.3 58 3.8 3.5 109
TWO OCEAN PLATEAU 9240 5.0 3.9 128 4.5 3.9 115
WILLOW CREEK 8380 .6 2.7 22* 5.8 4.6 126
----- -----
Basin wide percent of average 52* 119
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 3.6 3.4 106 4.2 2.7 156
BLACK BEAR 8170 3.3 3.5 94* 6.4 4.6 139
CANYON 7870 .9 1.0 90* 2.7 2.4 113
FISHER CREEK 9100 3.2 3.6 89* 5.6 4.3 130
MADISON PLATEAU 7750 1.1 2.1 52* 5.0 3.2 156
NORTHEAST ENTRANCE 7350 .4 .5 80* 2.6 1.9 137
PARKER PEAK 9400 3.2 3.2 100 5.2 2.8 186
SYLVAN LAKE 8420 1.5 2.6 58 5.4 3.3 164
THUMB DIVIDE 7980 .3 1.2 25* 3.2 2.6 123
TWO OCEAN PLATEAU 9240 5.0 3.9 128 4.5 3.9 115
WHISKEY CREEK 6800 .7 1.1 64* 4.1 2.8 146
WHITE MILL 8700 1.7 2.6 65* 4.2 3.4 124
WOLVERINE 7650 1.0 .8 125* 3.7 2.2 168
----- -----
Basin wide percent of average 88* 142
WIND RIVER
BURROUGHS CREEK 8750 .6 1.4 43* 1.7 2.1 81
CASTLE CREEK 8400 .6 -M * 1.4 -M *
COLD SPRINGS 9630 .9 1.4 64 2.1 2.4 88
DEER PARK 9700 1.5 3.0 50 3.4 3.3 103
HOBBS PARK 10100 2.8 2.7 104 3.0 2.7 111
LITTLE WARM 9370 .1 1.4 7 1.8 2.2 82
SOUTH PASS 9040 1.2 2.1 57 2.7 2.8 96
ST. LAWRENCE ALT 8620 .2 1.2 17 1.6 2.1 76
TOGWOTEE PASS 9580 1.9 3.3 58 3.8 3.5 109
TOWNSEND CREEK 8700 .8 1.4 57 3.4 2.6 131
----- -----
Basin wide percent of average 56 99
BIGHORN BASIN
BALD MTN. 9380 4.7 3.4 138 4.7 2.9 162
BEAR TRAP MEADOW 8200 .4 .8 50 2.2 2.1 105
BLACKWATER 9780 4.2 3.7 114 4.4 3.4 129
BONE SPRINGS DIV 9350 4.7 3.2 147 5.1 3.0 170
EVENING STAR 9200 2.9 3.5 83 5.8 3.6 161
GRAVE SPRINGS 8550 .5 1.6 31 2.7 2.4 113
KIRWIN 9550 2.4 2.4 100 3.5 2.3 152
MARQUETTE 8760 .6 -M * 4.0 2.7 148
MIDDLE POWDER 7760 1.1 1.7 65 4.4 3.1 142
OWL CREEK 8975 1.0 1.1 91 1.7 1.4 121
POWDER RIVER PASS 9480 2.4 1.7 141 3.6 2.3 157
SHELL CREEK 9580 5.1 3.2 159 4.6 2.5 184
SYLVAN LAKE 8420 1.5 2.6 58 5.4 3.3 164
SYLVAN ROAD 7120 .8 .9 89* 3.0 2.7 111
TIMBER CREEK 7950 .6 1.5 40 4.1 1.9 216
YOUNTS PEAK 8350 1.2 1.9 63 2.9 2.4 121
----- -----
Basin wide percent of average 101 148
SHOSHONE RIVER
BLACKWATER 9780 4.2 3.7 114 4.4 3.4 129
EVENING STAR 9200 2.9 3.5 83 5.8 3.6 161
KIRWIN 9550 2.4 2.4 100 3.5 2.3 152
MARQUETTE 8760 .6 -M * 4.0 2.7 148
SYLVAN LAKE 8420 1.5 2.6 58 5.4 3.3 164
SYLVAN ROAD 7120 .8 .9 89* 3.0 2.7 111
YOUNTS PEAK 8350 1.2 1.9 63 2.9 2.4 121
----- -----
Basin wide percent of average 87 142
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .4 .8 50 2.2 2.1 105
BIG GOOSE 7990 2.3 1.1 209* 5.7 2.4 238
BONE SPRINGS DIV 9350 4.7 3.2 147 5.1 3.0 170
BURGESS JUNCTION 7880 2.3 2.0 115 5.2 2.6 200
CLOUD PEAK RESERVOIR 9860 2.8 2.1 133 4.7 3.1 152
DOME LAKE 8880 3.5 2.4 146 6.2 3.0 207
GRAVE SPRINGS 8550 .5 1.6 31 2.7 2.4 113
HANSEN SAWMILL 8360 .8 1.1 73 2.7 2.2 123
LITTLE GOOSE 8870 2.8 -M * 6.3 -M *
MIDDLE POWDER 7760 1.1 1.7 65 4.4 3.1 142
POWDER RIVER PASS 9480 2.4 1.7 141 3.6 2.3 157
SOLDIER PARK 8720 .2 -M * 3.6 -M *
SUCKER CREEK 8880 4.0 1.8 222 5.3 2.9 183
TIE CREEK 6870 .9 1.1 82 5.8 2.8 207
----- -----
Basin wide percent of average 125 168
BELLE FOURCHE
BLIND PARK 6890 .1 1.1 9 1.5 3.0 50
COLE CANYON 5910 .0 1.2 0 1.6 2.1 76
NORTH RAPID CREEK 6130 .4 .7 57* 1.0 2.8 36
----- -----
Basin wide percent of average 17 52
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 3.1 -M * 4.7 -M *
CINNABAR PARK 9574 1.6 2.2 73 4.0 3.2 125
COLUMBINE 9160 1.0 1.5 67* 3.5 3.0 117
DIVIDE PEAK 8880 1.9 2.3 83 4.8 3.3 145
ELK RIVER 8700 .6 .9 67* 2.9 2.7 107
JOE WRIGHT 10120 1.6 3.3 48 5.1 4.2 121
NORTH FRENCH CREEK 10130 3.0 3.9 77 4.4 4.1 107
OLD BATTLE 10000 3.5 4.0 88 4.7 4.5 104
SAGE CREEK BASIN 7850 1.0 1.3 77 2.8 1.9 147
SOUTH BRUSH CREEK 8440 .8 1.1 73* 3.4 3.1 110
TOWER 10500 3.5 5.0 70* 4.8 5.1 94
WEBBER SPRINGS 9250 1.5 2.6 58* 4.4 3.9 113
WILLOW CREEK PASS 9540 1.4 1.6 88 2.7 2.5 108
----- -----
Basin wide percent of average 72 114
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.2 2.8 43* 3.6 3.1 116
CASPER MTN. 7900 2.7 2.3 117 6.3 3.1 203
DEADMAN HILL 10220 3.6 2.8 129 4.3 3.0 143
DEER PARK 9700 1.5 3.0 50 3.4 3.3 103
LAPRELE CREEK 8375 1.4 1.4 100 3.8 2.4 158
RENO HILL 8400 3.1 2.2 141 4.9 3.1 158
ROACH 9700 2.4 1.7 141* 4.2 2.8 150
SAND LAKE 10050 4.1 4.3 95 4.9 3.8 129
SOUTH PASS 9040 1.2 2.1 57 2.7 2.8 96
WINDY PEAK 7900 1.4 .9 156 2.9 2.1 138
----- -----
Basin wide percent of average 96 139
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.0 .8 125* 2.6 2.3 113
DIVIDE PEAK 8880 1.9 2.3 83 4.8 3.3 145
OLD BATTLE 10000 3.5 4.0 88 4.7 4.5 104
SANDSTONE RS 8150 .2 .8 25* 2.6 2.9 90
WHISKEY PARK 8950 1.0 2.4 42* 4.2 3.7 114
----- -----
Basin wide percent of average 74* 113
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.4 1.7 82 2.5 2.3 109
BLIND BULL SUM 8650 .7 2.4 29* 2.3 2.8 82
EAST RIM DIVIDE 7930 .5 1.0 50* 2.1 1.7 124
ELKHART PARK G.S. 9400 1.1 1.2 92* 3.1 2.4 129
GROS VENTRE SUMMIT 8750 .7 1.8 39 2.4 2.3 104
GUNSIGHT PASS 9820 1.1 -M * 2.8 -M *
KENDALL R.S. 7740 .5 1.0 50* 2.4 2.0 120
LOOMIS PARK 8240 .1 1.4 7* 2.6 2.3 113
NEW FORK LAKE 8340 1.0 .9 111* 2.8 2.0 140
POCKET CREEK 9360 2.1 -M * 3.1 -M *
SNIDER BASIN 8060 .2 1.1 18* 1.6 2.1 76
SPRING CREEK DIVIDE 9000 1.5 2.2 68* 3.5 3.3 106
TRIPLE PEAK 8500 1.1 1.9 58* 3.2 2.9 110
----- -----
Basin wide percent of average 53* 109
LOWER GREEN RIVER
HAMS FORK 7840 .1 .7 14* 2.5 1.8 139
HEWINTA 9519 .0 1.1 0* 3.6 2.9 124
HICKERSON PARK 9145 1.2 .6 200* 4.6 2.0 230
HOLE-IN-ROCK 9150 1.4 .7 200* 4.4 2.0 220
INDIAN CREEK 9425 1.7 2.3 74* 3.2 3.3 97
KELLEY R.S. 8180 .7 1.4 50* 3.0 2.7 111
STEEL CREEK PARK 10200 1.3 2.0 65 4.4 2.9 152
----- -----
Basin wide percent of average 73* 146
UPPER BEAR RIVER
BUG LAKE 7950 .0 1.7 0* 2.6 2.9 90
HAYDEN FORK 9212 .6 1.2 50* 4.8 3.0 160
KELLEY R.S. 8180 .7 1.4 50* 3.0 2.7 111
LILY LAKE 9156 .3 1.3 23* 3.5 3.0 117
MONTE CRISTO 8960 1.1 2.1 52* 3.1 3.5 89
SALT RIVER SUMMIT 7760 .4 .6 67* 2.2 2.4 92
TRIAL LAKE 9992 1.8 2.5 72* 2.9 3.4 85
----- -----
Basin wide percent of average 45* 106
-----------------------------------------------------------------------------
-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.