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 THURSDAY: NOVEMBER 23 , 2006
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 2.1 3.0 70 5.6 5.0 112
COTTONWOOD CREEK 7600 4.7 3.5 134 7.6 6.7 113
GRANITE CREEK 6770 2.1 2.5 84 5.3 4.4 120
GRASSY LAKE 7265 4.4 5.8 76 11.3 8.0 141
GROS VENTRE SUMMIT 8750 3.3 3.1 106 4.6 3.7 124
LEWIS LAKE DIVIDE 7850 4.8 5.8 83 10.4 8.1 128
PHILLIPS BENCH 8200 3.4 4.9 69 7.9 6.1 130
SALT RIVER SUMMIT 7600 2.4 1.9 126 5.0 4.2 119
SNAKE RIVER STATION 6920 2.3 3.0 77 8.7 5.3 164
SPRING CREEK DIVIDE 9000 5.3 5.2 102 6.7 6.1 110
THUMB DIVIDE 7980 1.9 3.0 63 4.5 4.5 100
TOGWOTEE PASS 9580 5.3 5.8 91 6.6 6.1 108
TWO OCEAN PLATEAU 9240 5.4 6.9 78 6.7 6.9 97
WILLOW CREEK 8450 5.3 6.0 88 9.2 7.9 116
----- -----
Basin wide percent of average 87 121
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 4.1 5.8 71 4.8 4.9 98
BLACK BEAR 8170 7.0 7.5 93 10.9 8.7 125
CANYON 8090 2.2 2.5 88 5.1 4.0 127
FISHER CREEK 9100 7.2 7.2 100 10.2 8.1 126
MADISON PLATEAU 7750 3.2 4.7 68 6.9 6.0 115
NORTHEAST ENTRANCE 7350 .6 1.8 33 5.3 3.4 156
PARKER PEAK 9400 4.3 5.6 77 5.9 4.7 126
SYLVAN LAKE 8420 2.8 5.2 54 7.3 5.9 124
THUMB DIVIDE 7980 1.9 3.0 63 4.5 4.5 100
TWO OCEAN PLATEAU 9240 5.4 6.9 78 6.7 6.9 97
WHISKEY CREEK 6800 2.1 2.8 75 6.0 4.9 122
WHITE MILL 8700 4.4 5.2 85 7.5 6.4 117
WOLVERINE 7650 1.2 2.2 55 3.6 3.8 95
----- -----
Basin wide percent of average 77 117
WIND RIVER
BURROUGHS CREEK 8750 2.5 3.0 83 4.5 4.0 112
COLD SPRINGS 9630 1.2 2.6 46 2.4 3.6 67
DEER PARK 9700 3.5 4.1 85 5.3 5.9 90
HOBBS PARK 10100 2.7 4.5 60 3.3 4.0 82
LITTLE WARM 9370 2.1 2.8 75 3.1 3.9 79
SOUTH PASS 9040 3.5 4.0 88 4.9 5.0 98
ST. LAWRENCE ALT 8620 1.5 2.2 68 2.5 3.0 83
TOGWOTEE PASS 9580 5.3 5.8 91 6.6 6.1 108
TOWNSEND CREEK 8700 2.2 2.5 88 4.4 3.9 113
----- -----
Basin wide percent of average 78 94
BIGHORN BASIN
BALD MTN. 9380 6.4 5.2 123 5.2 4.6 113
BEAR TRAP MEADOW 8200 1.7 1.4 121 2.7 3.0 90
BLACKWATER 9780 5.0 6.4 78 5.6 6.0 93
BONE SPRINGS DIV 9350 5.9 4.7 126 5.0 4.3 116
EVENING STAR 9200 4.4 6.8 65 -M 6.8 *
GRAVE SPRINGS 8550 2.1 2.4 88 2.5 3.2 78
KIRWIN 9550 2.7 3.6 75 3.8 3.5 109
MARQUETTE 8760 .3 3.3 9 2.9 3.6 81
MIDDLE POWDER 7760 2.9 3.0 97 3.4 4.3 79
OWL CREEK 8975 2.1 1.7 124 2.5 1.9 132
POWDER RIVER PASS 9480 2.8 2.8 100 3.6 3.5 103
SHELL CREEK 9580 5.8 4.5 129 3.9 3.9 100
SYLVAN LAKE 8420 2.8 5.2 54 7.3 5.9 124
SYLVAN ROAD 7120 .6 2.6 23 5.3 5.4 98
TIMBER CREEK 7950 .3 2.1 14 2.7 2.7 100
YOUNTS PEAK 8350 1.8 3.8 47 5.1 4.3 119
----- -----
Basin wide percent of average 80 102
SHOSHONE RIVER
BLACKWATER 9780 5.0 6.4 78 5.6 6.0 93
EVENING STAR 9200 4.4 6.8 65 -M 6.8 *
KIRWIN 9550 2.7 3.6 75 3.8 3.5 109
MARQUETTE 8760 .3 3.3 9 2.9 3.6 81
SYLVAN LAKE 8420 2.8 5.2 54 7.3 5.9 124
SYLVAN ROAD 7120 .6 2.6 23 5.3 5.4 98
YOUNTS PEAK 8350 1.8 3.8 47 5.1 4.3 119
----- -----
Basin wide percent of average 56 105
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.7 1.4 121 2.7 3.0 90
BIG GOOSE 7990 1.4 1.9 74 3.0 2.8 107
BONE SPRINGS DIV 9350 5.9 4.7 126 5.0 4.3 116
BURGESS JUNCTION 7880 2.5 3.1 81 4.2 3.7 114
CLOUD PEAK RESERVOIR 9860 3.1 3.2 97 3.3 4.3 77
DOME LAKE 8880 2.5 3.6 69 3.5 4.3 81
GRAVE SPRINGS 8550 2.1 2.4 88 2.5 3.2 78
HANSEN SAWMILL 8360 .5 1.6 31 1.8 2.9 62
MIDDLE POWDER 7760 2.9 3.0 97 3.4 4.3 79
POWDER RIVER PASS 9480 2.8 2.8 100 3.6 3.5 103
SUCKER CREEK 8880 3.7 2.8 132 4.5 4.0 112
TIE CREEK 6870 .5 1.2 42 4.0 3.4 118
----- -----
Basin wide percent of average 93 95
BELLE FOURCHE
BLIND PARK 6890 .9 1.8 50 2.9 4.0 72
COLE CANYON 5910 1.2 1.6 75 3.2 -M *
NORTH RAPID CREEK 6130 .6 1.4 43 2.5 3.5 71
----- -----
Basin wide percent of average 56 72
UPPER N. PLATTE RIVER
COLUMBINE 9160 3.8 3.8 100 6.5 5.4 120
DIVIDE PEAK 8860 4.7 4.2 112 7.0 5.3 132
ELK RIVER 8700 3.2 2.4 133 5.4 4.4 123
JOE WRIGHT 10120 5.0 5.4 93 6.8 6.6 103
NORTH FRENCH CREEK 10130 6.4 6.6 97 7.4 6.4 116
OLD BATTLE 9920 7.5 7.3 103 9.8 7.8 126
SAGE CREEK BASIN 7850 3.6 2.5 144 5.2 3.1 168
SOUTH BRUSH CREEK 8440 2.5 2.3 109 4.5 4.5 100
TOWER 10500 8.5 10.2 83 10.5 8.9 118
WEBBER SPRINGS 9250 5.0 5.3 94 8.2 6.6 124
WILLOW CREEK PASS 9540 3.7 3.0 123 3.3 3.8 87
----- -----
Basin wide percent of average 102 119
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 4.7 4.9 96 5.6 5.2 108
CASPER MTN. 7850 3.0 3.8 79 4.1 4.5 91
DEADMAN HILL 10220 3.5 4.3 81 4.6 4.6 100
DEER PARK 9700 3.5 4.1 85 5.3 5.9 90
LAPRELE CREEK 8375 2.4 2.6 92 3.3 3.7 89
RENO HILL 8500 3.9 3.6 108 5.0 4.4 114
ROACH 9700 4.7 3.5 134 6.1 4.5 136
SAND LAKE 10050 6.4 7.6 84 6.9 6.1 113
SOUTH PASS 9040 3.5 4.0 88 4.9 5.0 98
WINDY PEAK 7900 1.4 1.8 78 2.8 3.2 87
----- -----
Basin wide percent of average 92 103
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .7 1.5 47 4.1 3.8 108
DIVIDE PEAK 8860 4.7 4.2 112 7.0 5.3 132
OLD BATTLE 9920 7.5 7.3 103 9.8 7.8 126
SANDSTONE RS 8150 1.1 1.8 61 4.4 4.7 94
WHISKEY PARK 8950 3.9 4.9 80 6.7 6.5 103
----- -----
Basin wide percent of average 91 114
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.6 3.2 112 4.3 3.7 116
BLIND BULL SUM 8900 5.5 5.5 100 5.8 5.3 109
EAST RIM DIVIDE 7930 1.4 2.5 56 3.5 2.9 121
ELKHART PARK G.S. 9400 2.2 2.8 79 4.1 3.8 108
GROS VENTRE SUMMIT 8750 3.3 3.1 106 4.6 3.7 124
KENDALL R.S. 7740 1.7 2.5 68 4.2 3.4 124
LOOMIS PARK 8240 2.2 3.4 65 4.7 4.1 115
NEW FORK LAKE 8340 1.9 2.1 90 4.2 3.2 131
SNIDER BASIN 8060 2.8 2.8 100 4.5 3.8 118
SPRING CREEK DIVIDE 9000 5.3 5.2 102 6.7 6.1 110
TRIPLE PEAK 8500 5.0 4.8 104 7.6 5.4 141
----- -----
Basin wide percent of average 92 119
LOWER GREEN RIVER
HAMS FORK 7840 2.0 1.8 111 3.5 3.0 117
HEWINTA 9500 .5 1.8 28 5.2 4.3 121
HICKERSON PARK 9100 .7 1.2 58 3.9 2.8 139
HOLE-IN-ROCK 9150 1.7 1.2 142 3.5 2.7 130
INDIAN CREEK 9425 5.3 5.2 102 5.9 5.9 100
KELLEY R.S. 8180 3.3 3.2 103 5.2 4.8 108
STEEL CREEK PARK 10100 3.8 3.4 112 5.0 4.5 111
----- -----
Basin wide percent of average 97 115
UPPER BEAR RIVER
BUG LAKE 7950 3.2 3.2 100 5.5 4.8 115
HAYDEN FORK 9100 1.9 2.5 76 7.5 5.1 147
KELLEY R.S. 8180 3.3 3.2 103 5.2 4.8 108
LILY LAKE 9050 2.7 2.4 113 5.8 4.8 121
MONTE CRISTO 8960 5.5 4.1 134 7.5 6.1 123
SALT RIVER SUMMIT 7600 2.4 1.9 126 5.0 4.2 119
TRIAL LAKE 9960 3.5 4.5 78 7.4 5.7 130
----- -----
Basin wide percent of average 103 124
-----------------------------------------------------------------------------
-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.
