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: DECEMBER 11 , 2005
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 5.8 5.4 107 9.5 7.5 127
COTTONWOOD CREEK 7600 6.4 6.3 102 9.7 9.8 99
GRANITE CREEK 6770 6.1 4.8 127 8.3 6.7 124
GRASSY LAKE 7265 10.2 9.9 103 14.6 12.1 121
GROS VENTRE SUMMIT 8750 4.6 4.9 94 5.8 5.0 116
LEWIS LAKE DIVIDE 7850 10.1 10.0 101 13.9 12.4 112
PHILLIPS BENCH 8200 8.8 8.5 104 10.9 9.4 116
SALT RIVER SUMMIT 7600 4.1 3.5 117 6.1 6.3 97
SNAKE RIVER STATION 6920 5.2 5.3 98 10.0 7.9 127
SPRING CREEK DIVIDE 9000 8.5 8.8 97 9.2 9.1 101
THUMB DIVIDE 7980 5.6 5.1 110 7.9 6.6 120
TOGWOTEE PASS 9580 9.9 8.5 116 10.6 8.8 120
TWO OCEAN PLATEAU 9240 14.9 10.0 149 12.4 9.9 125
WILLOW CREEK 8450 8.4 9.8 86 13.0 11.4 114
----- -----
Basin wide percent of average 108 115
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 9.7 8.5 114 8.1 7.2 112
BLACK BEAR 8170 15.2 12.2 125 16.5 12.8 129
CANYON 8090 5.3 4.1 129 7.5 5.8 129
FISHER CREEK 9100 15.2 11.7 130 15.1 12.2 124
MADISON PLATEAU 7750 8.2 7.9 104 11.6 8.9 130
NORTHEAST ENTRANCE 7350 3.2 3.4 94 5.4 4.8 113
PARKER PEAK 9400 7.4 8.0 92 7.7 6.4 120
SYLVAN LAKE 8420 6.1 7.8 78 9.6 8.4 114
THUMB DIVIDE 7980 5.6 5.1 110 7.9 6.6 120
TWO OCEAN PLATEAU 9240 14.9 10.0 149 12.4 9.9 125
WHISKEY CREEK 6800 4.1 5.1 80 9.1 7.2 126
WHITE MILL 8700 8.8 8.2 107 9.0 9.3 97
WOLVERINE 7650 3.9 3.9 100 4.3 5.3 81
----- -----
Basin wide percent of average 112 119
WIND RIVER
BURROUGHS CREEK 8750 -M 4.8 * 7.3 5.9 124
COLD SPRINGS 9630 1.8 3.7 49 4.1 4.7 87
DEER PARK 9700 5.3 5.3 100 7.1 8.3 86
HOBBS PARK 10100 3.3 6.2 53 4.7 5.2 90
LITTLE WARM 9370 3.6 4.0 90 5.6 5.3 106
SOUTH PASS 9040 5.0 6.3 79 6.5 7.0 93
ST. LAWRENCE ALT 8620 .6 3.1 19 2.8 3.9 72
TOGWOTEE PASS 9580 9.9 8.5 116 10.6 8.8 120
TOWNSEND CREEK 8700 2.0 3.5 57 4.7 5.0 94
----- -----
Basin wide percent of average 78 99
BIGHORN BASIN
BALD MTN. 9380 6.1 7.2 85 5.0 6.3 79
BEAR TRAP MEADOW 8200 2.0 2.0 100 4.1 3.8 108
BLACKWATER 9780 9.1 9.3 98 8.1 8.4 96
BONE SPRINGS DIV 9350 6.2 6.1 102 6.2 5.7 109
EVENING STAR 9200 8.6 10.4 83 11.8 9.7 122
GRAVE SPRINGS 8550 2.7 3.0 90 5.1 4.0 127
KIRWIN 9550 5.5 4.8 115 5.9 4.7 126
MARQUETTE 8760 1.2 4.2 29 4.1 4.5 91
MIDDLE POWDER 7760 4.6 4.3 107 5.5 5.5 100
OWL CREEK 8975 .9 2.2 41 3.3 2.4 138
POWDER RIVER PASS 9480 3.4 3.9 87 5.3 4.7 113
SHELL CREEK 9580 5.4 5.7 95 5.3 5.2 102
SYLVAN LAKE 8420 6.1 7.8 78 9.6 8.4 114
SYLVAN ROAD 7120 3.6 4.5 80 7.7 7.7 100
TIMBER CREEK 7950 1.0 2.5 40 3.2 3.2 100
YOUNTS PEAK 8350 -M 5.8 * 8.9 6.2 144
----- -----
Basin wide percent of average 85 110
SHOSHONE RIVER
BLACKWATER 9780 9.1 9.3 98 8.1 8.4 96
EVENING STAR 9200 8.6 10.4 83 11.8 9.7 122
KIRWIN 9550 5.5 4.8 115 5.9 4.7 126
MARQUETTE 8760 1.2 4.2 29 4.1 4.5 91
SYLVAN LAKE 8420 6.1 7.8 78 9.6 8.4 114
SYLVAN ROAD 7120 3.6 4.5 80 7.7 7.7 100
YOUNTS PEAK 8350 -M 5.8 * 8.9 6.2 144
----- -----
Basin wide percent of average 83 113
POWDER-TONGUE
BEAR TRAP MEADOW 8200 2.0 2.0 100 4.1 3.8 108
BIG GOOSE 7990 2.3 3.0 77 4.5 3.5 129
BONE SPRINGS DIV 9350 6.2 6.1 102 6.2 5.7 109
BURGESS JUNCTION 7880 -M 4.1 * -M 4.8 *
CLOUD PEAK RESERVOIR 9860 4.7 4.4 107 5.7 5.4 106
DOME LAKE 8880 4.6 4.7 98 5.6 5.5 102
GRAVE SPRINGS 8550 2.7 3.0 90 5.1 4.0 127
HANSEN SAWMILL 8360 1.5 2.4 62 3.2 3.6 89
MIDDLE POWDER 7760 4.6 4.3 107 5.5 5.5 100
POWDER RIVER PASS 9480 3.4 3.9 87 5.3 4.7 113
SUCKER CREEK 8880 3.8 3.8 100 6.3 5.2 121
TIE CREEK 6870 2.4 1.4 171 5.7 4.2 136
----- -----
Basin wide percent of average 98 112
BELLE FOURCHE
BLIND PARK 6890 2.0 2.4 83 3.6 5.0 72
COLE CANYON 5910 1.7 2.3 74 4.1 -M *
NORTH RAPID CREEK 6130 2.4 2.2 109 3.4 4.3 79
----- -----
Basin wide percent of average 88 75
UPPER N. PLATTE RIVER
COLUMBINE 9160 10.1 6.5 155 13.8 8.0 172
DIVIDE PEAK 8860 5.9 6.4 92 9.5 7.4 128
ELK RIVER 8700 4.8 4.3 112 8.4 6.4 131
JOE WRIGHT 10120 9.5 7.3 130 12.0 9.1 132
NORTH FRENCH CREEK 10130 10.9 9.6 114 12.1 9.0 134
OLD BATTLE 9920 12.6 11.0 115 15.9 11.5 138
SAGE CREEK BASIN 7850 3.3 3.7 89 6.0 4.3 140
SOUTH BRUSH CREEK 8440 4.3 3.6 119 7.8 6.0 130
TOWER 10500 17.4 15.2 114 20.3 13.0 156
WEBBER SPRINGS 9250 -M 8.2 * -M 9.5 *
WILLOW CREEK PASS 9540 5.4 4.2 129 6.7 5.0 134
----- -----
Basin wide percent of average 117 141
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 8.7 7.5 116 6.6 7.5 88
CASPER MTN. 7850 4.0 5.4 74 7.0 5.8 121
DEADMAN HILL 10220 6.6 5.9 112 8.3 6.1 136
DEER PARK 9700 5.3 5.3 100 7.1 8.3 86
LAPRELE CREEK 8375 2.0 3.9 51 3.6 4.9 73
RENO HILL 8500 4.9 5.1 96 6.5 5.8 112
ROACH 9700 6.0 5.2 115 8.9 6.3 141
SAND LAKE 10050 12.6 11.1 114 13.0 8.6 151
SOUTH PASS 9040 5.0 6.3 79 6.5 7.0 93
WINDY PEAK 7900 1.8 2.7 67 3.6 4.3 84
----- -----
Basin wide percent of average 97 110
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 4.2 2.4 175 7.3 5.3 138
DIVIDE PEAK 8860 5.9 6.4 92 9.5 7.4 128
OLD BATTLE 9920 12.6 11.0 115 15.9 11.5 138
SANDSTONE RS 8150 4.4 3.2 138 9.1 6.6 138
WHISKEY PARK 8950 9.7 7.6 128 13.2 9.5 139
----- -----
Basin wide percent of average 120 136
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.4 5.0 68 4.4 5.0 88
BLIND BULL SUM 8900 7.7 9.1 85 7.2 7.9 91
EAST RIM DIVIDE 7930 3.5 4.1 85 4.3 4.2 102
ELKHART PARK G.S. 9400 4.6 4.4 105 5.5 5.1 108
GROS VENTRE SUMMIT 8750 4.6 4.9 94 5.8 5.0 116
KENDALL R.S. 7740 4.3 4.3 100 5.7 5.0 114
LOOMIS PARK 8240 5.7 5.6 102 6.7 6.0 112
NEW FORK LAKE 8340 3.5 3.7 95 4.0 4.5 89
SNIDER BASIN 8060 5.3 4.7 113 5.7 5.6 102
SPRING CREEK DIVIDE 9000 8.5 8.8 97 9.2 9.1 101
TRIPLE PEAK 8500 8.7 8.2 106 10.4 8.0 130
----- -----
Basin wide percent of average 95 105
LOWER GREEN RIVER
HAMS FORK 7840 3.4 3.4 100 4.3 4.2 102
HEWINTA 9500 3.9 2.7 144 6.6 5.6 118
HICKERSON PARK 9100 1.0 1.9 53 3.4 3.5 97
HOLE-IN-ROCK 9150 3.1 1.9 163 3.8 3.3 115
INDIAN CREEK 9425 8.6 8.6 100 8.4 8.7 97
KELLEY R.S. 8180 4.9 5.3 92 6.6 7.1 93
STEEL CREEK PARK 10100 5.1 4.9 104 7.0 6.0 117
----- -----
Basin wide percent of average 105 104
UPPER BEAR RIVER
BUG LAKE 7950 5.7 5.3 108 7.1 6.8 104
HAYDEN FORK 9100 -M 4.0 * -M 7.4 *
KELLEY R.S. 8180 4.9 5.3 92 6.6 7.1 93
LILY LAKE 9050 4.7 3.7 127 6.5 6.6 98
MONTE CRISTO 8960 8.0 6.9 116 9.7 8.8 110
SALT RIVER SUMMIT 7600 4.1 3.5 117 6.1 6.3 97
TRIAL LAKE 9960 8.8 7.1 124 9.7 8.2 118
----- -----
Basin wide percent of average 114 104
-----------------------------------------------------------------------------
-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.