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: JANUARY 9 , 2011
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 10.6 9.4 113 13.6 11.6 117
COTTONWOOD CREEK 7670 14.7 10.9 135 19.3 15.1 128
GRAND TARGHEE 9260 25.7 -M * 18.7 -M *
GRANITE CREEK 6770 11.0 8.9 124 13.4 10.7 125
GRASSY LAKE 7265 18.0 16.8 107 21.2 19.6 108
GROS VENTRE SUMMIT 8750 8.9 7.6 117 8.8 7.0 126
GUNSIGHT PASS 9820 9.5 -M * 9.7 -M *
LEWIS LAKE DIVIDE 7850 19.3 16.8 115 20.7 19.6 106
PHILLIPS BENCH 8200 17.0 14.2 120 18.6 15.2 122
SALT RIVER SUMMIT 7760 8.4 6.3 133 12.4 10.1 123
SNAKE RIVER STATION 6920 8.1 9.0 90 14.6 12.3 119
SPRING CREEK DIVIDE 9000 16.6 13.8 120 17.3 14.6 118
THUMB DIVIDE 7980 12.1 8.7 139 12.6 10.1 125
TOGWOTEE PASS 9580 15.7 13.0 121 16.7 13.4 125
TWO OCEAN PLATEAU 9240 19.7 14.9 132 15.9 14.9 107
WILLOW CREEK 8380 16.8 15.9 106 22.1 17.3 128
----- -----
Basin wide percent of average 118 119
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 12.9 12.7 102 12.6 11.1 114
BLACK BEAR 8170 24.1 19.5 124 24.6 19.9 124
CANYON 7870 8.9 6.9 129 10.4 8.6 121
FISHER CREEK 9100 20.0 18.3 109 19.7 19.2 103
MADISON PLATEAU 7750 15.5 12.6 123 17.3 13.7 126
NORTHEAST ENTRANCE 7350 6.3 5.7 111 8.3 7.1 117
PARKER PEAK 9400 15.4 11.7 132 15.0 9.0 167
SYLVAN LAKE 8420 12.7 11.7 109 15.7 12.0 131
THUMB DIVIDE 7980 12.1 8.7 139 12.6 10.1 125
TWO OCEAN PLATEAU 9240 19.7 14.9 132 15.9 14.9 107
WHISKEY CREEK 6800 10.8 8.5 127 13.2 11.0 120
WHITE MILL 8700 13.7 12.5 110 14.7 14.3 103
WOLVERINE 7650 8.0 6.5 123 7.7 7.6 101
----- -----
Basin wide percent of average 120 118
WIND RIVER
BURROUGHS CREEK 8750 8.0 7.7 104 8.4 9.0 93
CASTLE CREEK 8400 3.6 -M * 4.1 -M *
COLD SPRINGS 9630 4.9 4.9 100 5.0 6.1 82
DEER PARK 9700 12.9 7.3 177 13.8 11.9 116
HOBBS PARK 10100 8.6 8.1 106 7.5 6.9 109
LITTLE WARM 9370 6.6 6.0 110 6.8 7.4 92
SOUTH PASS 9040 10.3 8.9 116 9.5 9.9 96
ST. LAWRENCE ALT 8620 3.1 4.0 78 4.1 4.9 84
TOGWOTEE PASS 9580 15.7 13.0 121 16.7 13.4 125
TOWNSEND CREEK 8700 4.8 4.7 102 6.8 6.3 108
----- -----
Basin wide percent of average 116 104
BIGHORN BASIN
BALD MTN. 9380 11.3 10.8 105 10.0 9.4 106
BEAR TRAP MEADOW 8200 3.7 2.8 132 4.8 4.7 102
BLACKWATER 9780 14.5 13.1 111 13.8 11.7 118
BONE SPRINGS DIV 9350 8.6 8.6 100 7.7 7.9 97
EVENING STAR 9200 16.7 15.3 109 18.3 14.3 128
GRAVE SPRINGS 8550 3.8 4.6 83 4.3 5.3 81
KIRWIN 9550 6.9 6.4 108 7.3 6.4 114
MARQUETTE 8760 1.6 5.2 31 3.7 5.5 67
MIDDLE POWDER 7760 5.3 5.9 90 3.5 7.2 49
OWL CREEK 8975 2.5 2.8 89 2.9 3.1 94
POWDER RIVER PASS 9480 6.8 5.8 117 7.7 6.6 117
SHELL CREEK 9580 7.8 8.0 98 6.8 7.3 93
SYLVAN LAKE 8420 12.7 11.7 109 15.7 12.0 131
SYLVAN ROAD 7120 8.2 6.9 119 11.5 11.0 105
TIMBER CREEK 7950 2.2 3.1 71 2.8 3.9 72
YOUNTS PEAK 8350 9.7 9.0 108 8.9 9.1 98
----- -----
Basin wide percent of average 102 103
SHOSHONE RIVER
BLACKWATER 9780 14.5 13.1 111 13.8 11.7 118
EVENING STAR 9200 16.7 15.3 109 18.3 14.3 128
KIRWIN 9550 6.9 6.4 108 7.3 6.4 114
MARQUETTE 8760 1.6 5.2 31 3.7 5.5 67
SYLVAN LAKE 8420 12.7 11.7 109 15.7 12.0 131
SYLVAN ROAD 7120 8.2 6.9 119 11.5 11.0 105
YOUNTS PEAK 8350 9.7 9.0 108 8.9 9.1 98
----- -----
Basin wide percent of average 104 113
POWDER-TONGUE
BEAR TRAP MEADOW 8200 3.7 2.8 132 4.8 4.7 102
BIG GOOSE 7990 3.3 4.8 69 4.9 4.7 104
BONE SPRINGS DIV 9350 8.6 8.6 100 7.7 7.9 97
BURGESS JUNCTION 7880 4.1 6.0 68 5.4 6.6 82
CLOUD PEAK RESERVOIR 9860 7.5 6.3 119 7.4 6.9 107
DOME LAKE 8880 4.4 6.5 68 6.2 7.4 84
GRAVE SPRINGS 8550 3.8 4.6 83 4.3 5.3 81
HANSEN SAWMILL 8360 3.5 3.4 103 3.9 4.5 87
LITTLE GOOSE 8870 4.0 -M * 7.6 -M *
MIDDLE POWDER 7760 5.3 5.9 90 3.5 7.2 49
POWDER RIVER PASS 9480 6.8 5.8 117 7.7 6.6 117
SOLDIER PARK 8720 3.1 -M * 4.6 -M *
SUCKER CREEK 8880 5.7 5.7 100 6.5 7.2 90
TIE CREEK 6870 2.5 3.0 83 4.4 5.5 80
----- -----
Basin wide percent of average 93 90
BELLE FOURCHE
BLIND PARK 6890 3.5 4.1 85 9.1 6.6 138
COLE CANYON 5910 4.0 3.6 111 6.4 4.1 156
NORTH RAPID CREEK 6130 4.0 3.7 108 7.8 5.6 139
----- -----
Basin wide percent of average 101 143
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 13.7 11.2 122 16.6 12.4 134
COLUMBINE 9160 16.3 11.6 141 19.5 12.9 151
DIVIDE PEAK 8880 12.2 10.3 118 15.8 11.1 142
ELK RIVER 8700 12.3 8.5 145 15.1 9.9 153
JOE WRIGHT 10120 14.5 10.7 136 20.0 13.1 153
NORTH FRENCH CREEK 10130 22.0 14.8 149 21.7 13.2 164
OLD BATTLE 10000 24.6 16.0 154 25.2 17.8 142
SAGE CREEK BASIN 7850 10.8 6.0 180 11.5 6.4 180
SOUTH BRUSH CREEK 8440 9.7 5.7 170 12.9 8.6 150
TOWER 10500 28.6 23.0 124 28.0 19.9 141
WEBBER SPRINGS 9250 16.6 12.6 132 21.4 14.5 148
WILLOW CREEK PASS 9540 10.8 6.1 177 10.9 6.9 158
----- -----
Basin wide percent of average 141 149
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 15.3 12.0 128 16.6 11.3 147
CASPER MTN. 7900 6.0 7.5 80 8.7 7.6 114
DEADMAN HILL 10220 5.2 8.4 62 13.3 8.6 155
DEER PARK 9700 12.9 7.3 177 13.8 11.9 116
LAPRELE CREEK 8375 5.9 5.9 100 7.1 6.7 106
RENO HILL 8400 7.4 7.1 104 9.2 7.7 119
ROACH 9700 11.4 8.2 139 14.5 9.4 154
SAND LAKE 10050 19.6 16.3 120 18.8 12.8 147
SOUTH PASS 9040 10.3 8.9 116 9.5 9.9 96
WINDY PEAK 7900 4.6 3.7 124 7.1 6.0 118
----- -----
Basin wide percent of average 116 129
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 5.7 5.1 112 9.2 7.9 116
DIVIDE PEAK 8880 12.2 10.3 118 15.8 11.1 142
OLD BATTLE 10000 24.6 16.0 154 25.2 17.8 142
SANDSTONE RS 8150 7.6 6.4 119 15.3 9.9 155
WHISKEY PARK 8950 -M 12.9 * 21.8 14.9 146
----- -----
Basin wide percent of average 133 142
UPPER GREEN RIVER
BIG SANDY OPENING 9080 8.3 7.6 109 9.0 7.2 125
BLIND BULL SUM 8650 14.7 14.6 101 11.2 12.3 91
EAST RIM DIVIDE 7930 7.1 6.6 108 7.0 6.4 109
ELKHART PARK G.S. 9400 6.7 7.0 96 7.4 7.3 101
GROS VENTRE SUMMIT 8750 8.9 7.6 117 8.8 7.0 126
GUNSIGHT PASS 9820 9.5 -M * 9.7 -M *
KENDALL R.S. 7740 6.8 7.5 91 8.6 7.7 112
LOOMIS PARK 8240 9.7 8.9 109 10.8 9.3 116
NEW FORK LAKE 8340 6.4 6.0 107 6.3 6.5 97
POCKET CREEK 9360 6.5 -M * 8.3 -M *
SNIDER BASIN 8060 10.3 7.6 136 10.9 8.9 122
SPRING CREEK DIVIDE 9000 16.6 13.8 120 17.3 14.6 118
TRIPLE PEAK 8500 14.8 13.2 112 16.9 12.6 134
----- -----
Basin wide percent of average 110 114
LOWER GREEN RIVER
HAMS FORK 7840 7.7 6.2 124 8.8 6.5 135
HEWINTA 9519 5.3 4.7 113 9.9 7.6 130
HICKERSON PARK 9145 3.3 3.3 100 5.3 4.4 120
HOLE-IN-ROCK 9150 4.0 3.0 133 5.5 4.1 134
INDIAN CREEK 9425 17.1 13.9 123 16.4 13.5 121
KELLEY R.S. 8180 11.3 8.4 135 14.1 11.3 125
STEEL CREEK PARK 10200 8.8 7.3 121 11.8 8.2 144
----- -----
Basin wide percent of average 123 129
UPPER BEAR RIVER
BUG LAKE 7950 15.8 9.6 165 17.4 10.2 171
HAYDEN FORK 9212 10.8 7.2 150 17.9 11.0 163
KELLEY R.S. 8180 11.3 8.4 135 14.1 11.3 125
LILY LAKE 9156 10.1 6.2 163 13.2 9.4 140
MONTE CRISTO 8960 18.3 12.8 143 21.2 13.4 158
SALT RIVER SUMMIT 7760 8.4 6.3 133 12.4 10.1 123
TRIAL LAKE 9992 21.1 11.8 179 22.4 12.5 179
----- -----
Basin wide percent of average 154 152
-----------------------------------------------------------------------------
-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.