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 WEDNESDAY: NOVEMBER 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 .7 1.3 54* 4.3 2.9 148
COTTONWOOD CREEK 7670 .5 1.7 29* 5.1 4.2 121
GRAND TARGHEE 9260 3.9 -M * 6.0 -M *
GRANITE CREEK 6770 .3 1.0 30* 2.6 2.6 100
GRASSY LAKE 7265 1.0 2.7 37* 6.3 4.8 131
GROS VENTRE SUMMIT 8750 .7 2.0 35 2.5 2.5 100
GUNSIGHT PASS 9820 1.1 -M * 2.8 -M *
LEWIS LAKE DIVIDE 7850 .9 2.6 35* 5.2 4.6 113
PHILLIPS BENCH 8200 .0 2.5 0* 2.7 3.5 77
SALT RIVER SUMMIT 7760 .1 .8 13* 2.1 2.7 78
SNAKE RIVER STATION 6920 .6 1.2 50* 4.6 3.2 144
SPRING CREEK DIVIDE 9000 1.6 2.6 62* 3.5 3.7 95
THUMB DIVIDE 7980 .5 1.5 33* 3.4 2.8 121
TOGWOTEE PASS 9580 2.1 3.7 57 4.1 3.9 105
TWO OCEAN PLATEAU 9240 5.2 4.4 118 4.7 4.3 109
WILLOW CREEK 8380 .7 3.2 22 6.0 5.1 118
----- -----
Basin wide percent of average 48* 112
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 3.8 3.9 97 4.4 3.0 147
BLACK BEAR 8170 3.8 4.2 90 6.8 5.2 131
CANYON 7870 1.0 1.3 77* 2.8 2.6 108
FISHER CREEK 9100 3.4 4.3 79 5.9 4.8 123
MADISON PLATEAU 7750 1.4 2.5 56* 5.4 3.5 154
NORTHEAST ENTRANCE 7350 .4 .8 50* 2.6 2.1 124
PARKER PEAK 9400 3.3 3.7 89 5.3 3.1 171
SYLVAN LAKE 8420 1.8 3.1 58 5.7 3.6 158
THUMB DIVIDE 7980 .5 1.5 33* 3.4 2.8 121
TWO OCEAN PLATEAU 9240 5.2 4.4 118 4.7 4.3 109
WHISKEY CREEK 6800 .9 1.5 60* 4.3 3.1 139
WHITE MILL 8700 1.9 3.2 59 4.4 3.8 116
WOLVERINE 7650 1.3 1.1 118* 3.8 2.5 152
----- -----
Basin wide percent of average 81 134
WIND RIVER
BURROUGHS CREEK 8750 .6 1.7 35 1.8 2.4 75
CASTLE CREEK 8400 .7 -M * 1.5 -M *
COLD SPRINGS 9630 .9 1.7 53 2.2 2.6 85
DEER PARK 9700 1.5 3.5 43 3.4 3.8 89
HOBBS PARK 10100 2.8 3.0 93 3.1 2.9 107
LITTLE WARM 9370 .2 1.7 12 1.9 2.5 76
SOUTH PASS 9040 1.1 2.5 44 2.7 3.1 87
ST. LAWRENCE ALT 8620 .2 1.4 14 1.6 2.3 70
TOGWOTEE PASS 9580 2.1 3.7 57 4.1 3.9 105
TOWNSEND CREEK 8700 .7 1.6 44 3.2 2.8 114
----- -----
Basin wide percent of average 49 91
BIGHORN BASIN
BALD MTN. 9380 4.7 3.8 124 4.7 3.2 147
BEAR TRAP MEADOW 8200 .4 .9 44 2.5 2.3 109
BLACKWATER 9780 4.4 4.2 105 4.8 3.7 130
BONE SPRINGS DIV 9350 4.9 3.6 136 5.2 3.2 163
EVENING STAR 9200 3.2 4.2 76 6.3 4.1 154
GRAVE SPRINGS 8550 .5 1.7 29 2.8 2.5 112
KIRWIN 9550 2.4 2.6 92 3.5 2.5 140
MARQUETTE 8760 .6 -M * 4.1 2.9 141
MIDDLE POWDER 7760 1.1 1.9 58 4.7 3.4 138
OWL CREEK 8975 1.1 1.2 92 1.8 1.5 120
POWDER RIVER PASS 9480 2.5 2.0 125 3.6 2.5 144
SHELL CREEK 9580 5.1 3.5 146 4.8 2.7 178
SYLVAN LAKE 8420 1.8 3.1 58 5.7 3.6 158
SYLVAN ROAD 7120 .9 1.2 75* 3.2 3.1 103
TIMBER CREEK 7950 .5 1.5 33 4.1 2.1 195
YOUNTS PEAK 8350 1.2 2.3 52 2.9 2.7 107
----- -----
Basin wide percent of average 92 141
SHOSHONE RIVER
BLACKWATER 9780 4.4 4.2 105 4.8 3.7 130
EVENING STAR 9200 3.2 4.2 76 6.3 4.1 154
KIRWIN 9550 2.4 2.6 92 3.5 2.5 140
MARQUETTE 8760 .6 -M * 4.1 2.9 141
SYLVAN LAKE 8420 1.8 3.1 58 5.7 3.6 158
SYLVAN ROAD 7120 .9 1.2 75* 3.2 3.1 103
YOUNTS PEAK 8350 1.2 2.3 52 2.9 2.7 107
----- -----
Basin wide percent of average 79 135
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .4 .9 44 2.5 2.3 109
BIG GOOSE 7990 2.5 1.2 208* 5.9 2.4 246
BONE SPRINGS DIV 9350 4.9 3.6 136 5.2 3.2 163
BURGESS JUNCTION 7880 2.3 2.3 100 5.4 2.8 193
CLOUD PEAK RESERVOIR 9860 2.9 2.3 126 4.7 3.4 138
DOME LAKE 8880 3.2 2.8 114 6.2 3.2 194
GRAVE SPRINGS 8550 .5 1.7 29 2.8 2.5 112
HANSEN SAWMILL 8360 .8 1.3 62 2.7 2.3 117
LITTLE GOOSE 8870 2.7 -M * 6.3 -M *
MIDDLE POWDER 7760 1.1 1.9 58 4.7 3.4 138
POWDER RIVER PASS 9480 2.5 2.0 125 3.6 2.5 144
SOLDIER PARK 8720 .1 -M * 3.5 -M *
SUCKER CREEK 8880 4.0 1.9 211 5.2 3.1 168
TIE CREEK 6870 .9 1.3 69 5.8 2.9 200
----- -----
Basin wide percent of average 112 161
BELLE FOURCHE
BLIND PARK 6890 .4 1.3 31 1.5 3.2 47
COLE CANYON 5910 .0 1.3 0 1.5 2.2 68
NORTH RAPID CREEK 6130 1.0 .8 125* 1.2 3.0 40
----- -----
Basin wide percent of average 41 50
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 3.2 -M * 4.8 -M *
CINNABAR PARK 9574 1.9 2.6 73 4.3 3.7 116
COLUMBINE 9160 1.0 1.8 56* 3.5 3.3 106
DIVIDE PEAK 8880 2.0 2.6 77 5.0 3.6 139
ELK RIVER 8700 .6 1.1 55* 2.9 3.0 97
JOE WRIGHT 10120 1.5 3.7 41 5.3 4.6 115
NORTH FRENCH CREEK 10130 3.1 4.4 70 4.5 4.5 100
OLD BATTLE 10000 3.7 4.5 82 5.0 5.0 100
SAGE CREEK BASIN 7850 1.0 1.5 67 2.8 2.1 133
SOUTH BRUSH CREEK 8440 .8 1.2 67* 3.3 3.4 97
TOWER 10500 3.9 5.9 66 5.2 5.6 93
WEBBER SPRINGS 9250 1.6 3.1 52 4.6 4.3 107
WILLOW CREEK PASS 9540 1.4 1.9 74 2.9 2.7 107
----- -----
Basin wide percent of average 66 108
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.4 3.1 45 3.9 3.5 111
CASPER MTN. 7900 2.7 2.5 108 6.5 3.4 191
DEADMAN HILL 10220 3.7 3.1 119 4.4 3.2 138
DEER PARK 9700 1.5 3.5 43 3.4 3.8 89
LAPRELE CREEK 8375 1.3 1.6 81 3.7 2.6 142
RENO HILL 8400 3.1 2.4 129 4.8 3.3 145
ROACH 9700 2.4 2.0 120 4.2 3.1 135
SAND LAKE 10050 4.2 4.8 88 5.0 4.2 119
SOUTH PASS 9040 1.1 2.5 44 2.7 3.1 87
WINDY PEAK 7900 1.3 1.0 130 2.9 2.3 126
----- -----
Basin wide percent of average 86 128
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .9 .9 100* 2.6 2.6 100
DIVIDE PEAK 8880 2.0 2.6 77 5.0 3.6 139
OLD BATTLE 10000 3.7 4.5 82 5.0 5.0 100
SANDSTONE RS 8150 .6 .9 67* 2.6 3.2 81
WHISKEY PARK 8950 1.1 2.8 39* 4.3 4.1 105
----- -----
Basin wide percent of average 71* 105
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.3 1.9 68 2.4 2.5 96
BLIND BULL SUM 8650 .9 2.9 31 2.4 3.2 75
EAST RIM DIVIDE 7930 .3 1.2 25* 2.2 1.9 116
ELKHART PARK G.S. 9400 1.3 1.5 87 3.2 2.6 123
GROS VENTRE SUMMIT 8750 .7 2.0 35 2.5 2.5 100
GUNSIGHT PASS 9820 1.1 -M * 2.8 -M *
KENDALL R.S. 7740 .6 1.2 50* 2.4 2.2 109
LOOMIS PARK 8240 .2 1.7 12* 2.7 2.6 104
NEW FORK LAKE 8340 1.1 1.0 110* 2.9 2.2 132
POCKET CREEK 9360 1.8 -M * 3.0 -M *
SNIDER BASIN 8060 .2 1.4 14* 1.6 2.3 70
SPRING CREEK DIVIDE 9000 1.6 2.6 62* 3.5 3.7 95
TRIPLE PEAK 8500 1.1 2.3 48* 3.3 3.2 103
----- -----
Basin wide percent of average 47* 101
LOWER GREEN RIVER
HAMS FORK 7840 .1 .8 13* 2.6 2.0 130
HEWINTA 9519 .0 1.2 0* 3.5 3.1 113
HICKERSON PARK 9145 .6 .7 86* 4.5 2.2 205
HOLE-IN-ROCK 9150 1.1 .8 138 4.4 2.1 210
INDIAN CREEK 9425 1.8 2.7 67* 3.3 3.7 89
KELLEY R.S. 8180 .8 1.7 47* 3.1 3.0 103
STEEL CREEK PARK 10200 1.2 2.2 55 4.4 3.2 138
----- -----
Basin wide percent of average 55* 134
UPPER BEAR RIVER
BUG LAKE 7950 .0 1.9 0* 2.7 3.2 84
HAYDEN FORK 9212 .7 1.4 50* 4.9 3.4 144
KELLEY R.S. 8180 .8 1.7 47* 3.1 3.0 103
LILY LAKE 9156 .3 1.4 21* 3.5 3.3 106
MONTE CRISTO 8960 1.1 2.4 46* 3.3 3.9 85
SALT RIVER SUMMIT 7760 .1 .8 13* 2.1 2.7 78
TRIAL LAKE 9992 1.9 2.8 68 2.8 3.8 74
----- -----
Basin wide percent of average 40* 96
-----------------------------------------------------------------------------
-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.