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 28 , 2011
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 4.9 3.7 132 8.3 5.6 148
COTTONWOOD CREEK 7670 3.4 4.2 81 8.0 7.5 107
GRAND TARGHEE 9260 10.0 -M * 9.4 -M *
GRANITE CREEK 6770 3.4 3.1 110 5.3 5.0 106
GRASSY LAKE 7265 5.0 6.9 72 10.2 8.9 115
GROS VENTRE SUMMIT 8750 2.9 3.6 81 4.4 4.0 110
GUNSIGHT PASS 9820 3.7 -M * 5.1 -M *
LEWIS LAKE DIVIDE 7850 6.1 6.9 88 11.0 9.1 121
PHILLIPS BENCH 8200 4.7 5.8 81 7.2 6.9 104
SALT RIVER SUMMIT 7760 2.4 2.3 104 4.5 4.6 98
SNAKE RIVER STATION 6920 4.0 3.6 111 8.4 6.0 140
SPRING CREEK DIVIDE 9000 5.1 6.2 82 6.8 6.8 100
THUMB DIVIDE 7980 4.2 3.6 117 7.0 5.0 140
TOGWOTEE PASS 9580 6.2 6.6 94 7.9 6.8 116
TWO OCEAN PLATEAU 9240 10.9 7.8 140 9.6 7.6 126
WILLOW CREEK 8380 5.0 7.0 71 10.3 8.7 118
----- -----
Basin wide percent of average 96 118
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 7.3 6.5 112 7.8 5.4 144
BLACK BEAR 8170 8.8 8.9 99 11.3 9.8 115
CANYON 7870 3.1 3.0 103 4.9 4.5 109
FISHER CREEK 9100 9.5 8.4 113 11.5 9.1 126
MADISON PLATEAU 7750 5.8 5.6 104 9.8 6.6 148
NORTHEAST ENTRANCE 7350 1.8 2.2 82 4.2 3.7 114
PARKER PEAK 9400 6.9 6.2 111 8.9 5.1 175
SYLVAN LAKE 8420 4.5 5.9 76 8.7 6.6 132
THUMB DIVIDE 7980 4.2 3.6 117 7.0 5.0 140
TWO OCEAN PLATEAU 9240 10.9 7.8 140 9.6 7.6 126
WHISKEY CREEK 6800 4.1 3.5 117 7.6 5.5 138
WHITE MILL 8700 5.2 6.0 87 7.5 7.1 106
WOLVERINE 7650 4.1 2.6 158 5.8 4.2 138
----- -----
Basin wide percent of average 109 130
WIND RIVER
BURROUGHS CREEK 8750 3.5 3.5 100 4.5 4.6 98
CASTLE CREEK 8400 1.9 -M * 3.0 -M *
COLD SPRINGS 9630 2.4 3.0 80 3.8 4.0 95
DEER PARK 9700 3.0 4.4 68 6.2 6.7 93
HOBBS PARK 10100 4.8 5.0 96 5.0 4.4 114
LITTLE WARM 9370 2.0 3.2 62 4.3 4.3 100
SOUTH PASS 9040 3.6 4.8 75 5.0 5.6 89
ST. LAWRENCE ALT 8620 .9 2.5 36 2.6 3.4 76
TOGWOTEE PASS 9580 6.2 6.6 94 7.9 6.8 116
TOWNSEND CREEK 8700 1.9 2.7 70 4.5 4.3 105
----- -----
Basin wide percent of average 79 99
BIGHORN BASIN
BALD MTN. 9380 6.4 5.6 114 6.4 5.0 128
BEAR TRAP MEADOW 8200 1.6 1.5 107 3.5 3.3 106
BLACKWATER 9780 9.3 7.3 127 9.1 6.7 136
BONE SPRINGS DIV 9350 6.9 5.1 135 7.0 4.7 149
EVENING STAR 9200 7.9 7.8 101 10.8 7.6 142
GRAVE SPRINGS 8550 2.1 2.6 81 4.2 3.5 120
KIRWIN 9550 5.2 3.9 133 6.6 3.9 169
MARQUETTE 8760 1.3 -M * 5.8 4.0 145
MIDDLE POWDER 7760 2.4 3.4 71 5.8 4.7 123
OWL CREEK 8975 1.8 1.8 100 2.8 2.1 133
POWDER RIVER PASS 9480 3.8 3.1 123 5.5 3.9 141
SHELL CREEK 9580 7.2 4.9 147 6.6 4.3 153
SYLVAN LAKE 8420 4.5 5.9 76 8.7 6.6 132
SYLVAN ROAD 7120 3.3 3.2 103 6.0 6.2 97
TIMBER CREEK 7950 1.5 2.2 68 5.0 2.9 172
YOUNTS PEAK 8350 4.9 4.4 111 6.2 4.8 129
----- -----
Basin wide percent of average 110 135
SHOSHONE RIVER
BLACKWATER 9780 9.3 7.3 127 9.1 6.7 136
EVENING STAR 9200 7.9 7.8 101 10.8 7.6 142
KIRWIN 9550 5.2 3.9 133 6.6 3.9 169
MARQUETTE 8760 1.3 -M * 5.8 4.0 145
SYLVAN LAKE 8420 4.5 5.9 76 8.7 6.6 132
SYLVAN ROAD 7120 3.3 3.2 103 6.0 6.2 97
YOUNTS PEAK 8350 4.9 4.4 111 6.2 4.8 129
----- -----
Basin wide percent of average 108 134
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.6 1.5 107 3.5 3.3 106
BIG GOOSE 7990 3.8 2.2 173 7.6 2.9 262
BONE SPRINGS DIV 9350 6.9 5.1 135 7.0 4.7 149
BURGESS JUNCTION 7880 3.8 3.3 115 7.0 4.0 175
CLOUD PEAK RESERVOIR 9860 5.4 3.6 150 7.2 4.7 153
DOME LAKE 8880 5.0 3.9 128 8.1 4.7 172
GRAVE SPRINGS 8550 2.1 2.6 81 4.2 3.5 120
HANSEN SAWMILL 8360 2.5 1.9 132 4.3 3.1 139
LITTLE GOOSE 8870 4.5 -M * 8.4 -M *
MIDDLE POWDER 7760 2.4 3.4 71 5.8 4.7 123
POWDER RIVER PASS 9480 3.8 3.1 123 5.5 3.9 141
SOLDIER PARK 8720 3.6 -M * 5.5 -M *
SUCKER CREEK 8880 5.7 3.0 190 7.0 4.3 163
TIE CREEK 6870 2.0 1.2 167 7.1 3.6 197
----- -----
Basin wide percent of average 129 157
BELLE FOURCHE
BLIND PARK 6890 2.2 1.9 116 2.9 4.4 66
COLE CANYON 5910 1.3 2.0 65 2.8 2.9 97
NORTH RAPID CREEK 6130 2.6 1.6 162 2.5 3.7 68
----- -----
Basin wide percent of average 111 75
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 7.6 -M * 9.4 -M *
CINNABAR PARK 9574 4.2 5.2 81 7.0 6.3 111
COLUMBINE 9160 4.3 4.5 96 6.6 5.9 112
DIVIDE PEAK 8880 4.4 4.7 94 7.9 5.8 136
ELK RIVER 8700 4.0 2.8 143 5.9 4.9 120
JOE WRIGHT 10120 3.7 6.0 62 8.1 7.3 111
NORTH FRENCH CREEK 10130 5.8 7.4 78 6.9 7.1 97
OLD BATTLE 10000 8.2 8.4 98 10.5 8.6 122
SAGE CREEK BASIN 7850 2.9 2.7 107 4.6 3.4 135
SOUTH BRUSH CREEK 8440 2.1 2.6 81 4.7 5.0 94
TOWER 10500 8.2 11.7 70 10.8 9.9 109
WEBBER SPRINGS 9250 5.5 6.1 90 8.7 7.3 119
WILLOW CREEK PASS 9540 2.3 3.4 68 4.4 4.1 107
----- -----
Basin wide percent of average 85 114
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 4.0 5.6 71 6.2 5.8 107
CASPER MTN. 7900 3.9 4.3 91 7.5 5.0 150
DEADMAN HILL 10220 6.5 4.8 135 6.8 5.0 136
DEER PARK 9700 3.0 4.4 68 6.2 6.7 93
LAPRELE CREEK 8375 2.1 3.0 70 4.5 4.1 110
RENO HILL 8400 4.2 4.0 105 6.0 4.8 125
ROACH 9700 4.8 4.0 120 6.9 5.0 138
SAND LAKE 10050 7.4 8.6 86 7.9 6.8 116
SOUTH PASS 9040 3.6 4.8 75 5.0 5.6 89
WINDY PEAK 7900 2.0 2.1 95 3.5 3.5 100
----- -----
Basin wide percent of average 91 116
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 3.9 1.7 229 5.0 4.1 122
DIVIDE PEAK 8880 4.4 4.7 94 7.9 5.8 136
OLD BATTLE 10000 8.2 8.4 98 10.5 8.6 122
SANDSTONE RS 8150 2.3 2.1 110 4.6 5.2 88
WHISKEY PARK 8950 5.1 5.7 89 8.7 7.3 119
----- -----
Basin wide percent of average 106 118
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.3 3.7 89 4.1 4.0 102
BLIND BULL SUM 8650 4.7 6.4 73 5.1 5.9 86
EAST RIM DIVIDE 7930 2.2 2.9 76 4.0 3.3 121
ELKHART PARK G.S. 9400 3.3 3.2 103 5.0 4.2 119
GROS VENTRE SUMMIT 8750 2.9 3.6 81 4.4 4.0 110
GUNSIGHT PASS 9820 3.7 -M * 5.1 -M *
KENDALL R.S. 7740 3.4 2.9 117 5.2 3.8 137
LOOMIS PARK 8240 3.3 4.0 82 5.6 4.6 122
NEW FORK LAKE 8340 3.1 2.5 124 4.4 3.6 122
POCKET CREEK 9360 3.1 -M * 4.1 -M *
SNIDER BASIN 8060 2.6 3.3 79 3.9 4.2 93
SPRING CREEK DIVIDE 9000 5.1 6.2 82 6.8 6.8 100
TRIPLE PEAK 8500 5.2 5.7 91 7.5 6.1 123
----- -----
Basin wide percent of average 88 111
LOWER GREEN RIVER
HAMS FORK 7840 2.3 2.2 105 4.3 3.3 130
HEWINTA 9519 1.8 2.0 90 5.0 4.7 106
HICKERSON PARK 9145 2.1 1.4 150 5.5 3.1 177
HOLE-IN-ROCK 9150 1.8 1.4 129 5.0 2.9 172
INDIAN CREEK 9425 5.5 6.1 90 6.3 6.5 97
KELLEY R.S. 8180 3.2 3.8 84 5.8 5.3 109
STEEL CREEK PARK 10200 2.8 3.7 76 5.5 4.9 112
----- -----
Basin wide percent of average 95 122
UPPER BEAR RIVER
BUG LAKE 7950 3.8 3.7 103 6.0 5.4 111
HAYDEN FORK 9212 2.7 2.8 96 7.0 5.7 123
KELLEY R.S. 8180 3.2 3.8 84 5.8 5.3 109
LILY LAKE 9156 2.0 2.7 74 5.1 5.4 94
MONTE CRISTO 8960 4.7 4.8 98 6.7 6.8 99
SALT RIVER SUMMIT 7760 2.4 2.3 104 4.5 4.6 98
TRIAL LAKE 9992 4.6 5.2 88 5.4 6.3 86
----- -----
Basin wide percent of average 92 103
-----------------------------------------------------------------------------
-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.
