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 SATURDAY: JANUARY 12 , 2008
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 9.5 9.8 97 16.0 12.1 132
COTTONWOOD CREEK 7670 10.8 11.4 95 13.8 15.6 88
GRAND TARGHEE 9260 26.4 -M * 19.8 -M *
GRANITE CREEK 6770 8.3 9.3 89 14.1 11.1 127
GRASSY LAKE 7265 15.6 17.6 89 23.6 20.4 116
GROS VENTRE SUMMIT 8750 7.7 7.9 97 8.9 7.2 124
GUNSIGHT PASS 9820 5.1 -M * 8.8 -M *
LEWIS LAKE DIVIDE 7850 16.6 17.7 94 22.8 20.4 112
PHILLIPS BENCH 8200 14.6 14.8 99 18.6 15.8 118
SALT RIVER SUMMIT 7760 5.2 6.7 78 7.5 10.4 72
SNAKE RIVER STATION 6920 8.3 9.5 87 16.2 12.7 128
SPRING CREEK DIVIDE 9000 10.8 14.3 76 11.6 15.2 76
THUMB DIVIDE 7980 8.1 9.1 89 11.7 10.5 111
TOGWOTEE PASS 9580 15.5 13.5 115 17.3 13.9 124
TWO OCEAN PLATEAU 9240 20.7 15.4 134 18.7 15.4 121
WILLOW CREEK 8380 14.3 16.5 87 20.1 18.0 112
----- -----
Basin wide percent of average 96 111
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 14.3 13.5 106 13.7 11.5 119
BLACK BEAR 8170 24.6 20.5 120 25.4 20.8 122
CANYON 7870 8.7 7.3 119 11.9 8.9 134
FISHER CREEK 9100 23.6 19.4 122 -M 20.0 *
MADISON PLATEAU 7750 14.9 13.4 111 18.7 14.2 132
NORTHEAST ENTRANCE 7350 3.8 6.1 62 7.9 7.3 108
PARKER PEAK 9400 14.0 12.3 114 13.5 9.2 147
SYLVAN LAKE 8420 11.1 12.4 90 15.6 12.4 126
THUMB DIVIDE 7980 8.1 9.1 89 11.7 10.5 111
TWO OCEAN PLATEAU 9240 20.7 15.4 134 18.7 15.4 121
WHISKEY CREEK 6800 9.1 8.9 102 15.0 11.4 132
WHITE MILL 8700 14.7 13.2 111 -M 14.8 *
WOLVERINE 7650 4.3 7.0 61 7.9 7.8 101
----- -----
Basin wide percent of average 108 124
WIND RIVER
BURROUGHS CREEK 8750 9.3 8.3 112 12.0 9.3 129
COLD SPRINGS 9630 3.0 5.1 59 5.9 6.3 94
DEER PARK 9700 7.4 9.0 82 11.0 12.2 90
HOBBS PARK 10100 6.3 8.5 74 7.5 7.1 106
LITTLE WARM 9370 5.1 6.4 80 8.0 7.7 104
SOUTH PASS 9040 6.4 9.5 67 9.2 10.2 90
ST. LAWRENCE ALT 8620 2.8 4.2 67 4.6 5.0 92
TOGWOTEE PASS 9580 15.5 13.5 115 17.3 13.9 124
TOWNSEND CREEK 8700 3.4 4.9 69 6.5 6.5 100
----- -----
Basin wide percent of average 85 105
BIGHORN BASIN
BALD MTN. 9380 7.9 11.3 70 8.8 9.7 91
BEAR TRAP MEADOW 8200 4.7 2.9 162 5.7 4.8 119
BLACKWATER 9780 13.6 13.7 99 13.1 12.0 109
BONE SPRINGS DIV 9350 7.8 9.0 87 10.9 8.1 135
EVENING STAR 9200 15.7 16.3 96 18.7 14.8 126
GRAVE SPRINGS 8550 4.1 4.8 85 5.5 5.5 100
KIRWIN 9550 7.5 6.7 112 9.0 6.6 136
MARQUETTE 8760 1.7 5.3 32 5.9 5.6 105
MIDDLE POWDER 7760 4.8 6.2 77 5.1 7.3 70
OWL CREEK 8975 2.8 2.9 97 4.4 3.2 138
POWDER RIVER PASS 9480 6.1 6.0 102 8.1 6.8 119
SHELL CREEK 9580 8.6 8.3 104 8.8 7.6 116
SYLVAN LAKE 8420 11.1 12.4 90 15.6 12.4 126
SYLVAN ROAD 7120 5.5 7.3 75 13.5 11.4 118
TIMBER CREEK 7950 1.7 3.2 53 5.4 4.0 135
YOUNTS PEAK 8350 9.3 9.5 98 11.4 9.5 120
----- -----
Basin wide percent of average 90 116
SHOSHONE RIVER
BLACKWATER 9780 13.6 13.7 99 13.1 12.0 109
EVENING STAR 9200 15.7 16.3 96 18.7 14.8 126
KIRWIN 9550 7.5 6.7 112 9.0 6.6 136
MARQUETTE 8760 1.7 5.3 32 5.9 5.6 105
SYLVAN LAKE 8420 11.1 12.4 90 15.6 12.4 126
SYLVAN ROAD 7120 5.5 7.3 75 13.5 11.4 118
YOUNTS PEAK 8350 9.3 9.5 98 11.4 9.5 120
----- -----
Basin wide percent of average 90 121
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.7 2.9 162 5.7 4.8 119
BIG GOOSE 7990 4.2 5.0 84 7.2 4.8 150
BONE SPRINGS DIV 9350 7.8 9.0 87 10.9 8.1 135
BURGESS JUNCTION 7880 5.1 6.2 82 7.1 6.8 104
CLOUD PEAK RESERVOIR 9860 6.9 6.7 103 8.3 7.0 119
DOME LAKE 8880 5.2 6.8 76 8.5 7.5 113
GRAVE SPRINGS 8550 4.1 4.8 85 5.5 5.5 100
HANSEN SAWMILL 8360 3.4 3.6 94 5.6 4.6 122
MIDDLE POWDER 7760 4.8 6.2 77 5.1 7.3 70
POWDER RIVER PASS 9480 6.1 6.0 102 8.1 6.8 119
SUCKER CREEK 8880 5.8 5.9 98 7.6 7.4 103
TIE CREEK 6870 2.3 3.3 70 6.2 5.7 109
----- -----
Basin wide percent of average 91 112
BELLE FOURCHE
BLIND PARK 6890 2.4 4.2 57 4.7 6.8 69
COLE CANYON 5910 1.9 3.7 51 3.3 4.2 79
NORTH RAPID CREEK 6130 3.0 3.9 77 3.6 5.7 63
----- -----
Basin wide percent of average 62 69
UPPER N. PLATTE RIVER
COLUMBINE 9160 11.6 12.2 95 14.6 13.5 108
DIVIDE PEAK 8880 12.3 10.7 115 12.7 11.4 111
ELK RIVER 8700 10.8 9.0 120 12.5 10.3 121
JOE WRIGHT 10120 12.2 11.1 110 14.7 13.5 109
NORTH FRENCH CREEK 10130 16.3 15.3 107 16.7 13.6 123
OLD BATTLE 10000 16.4 16.5 99 20.0 18.5 108
SAGE CREEK BASIN 7850 8.9 6.2 144 10.3 6.6 156
SOUTH BRUSH CREEK 8440 6.8 5.9 115 10.2 8.9 115
TOWER 10500 19.7 23.9 82 20.6 20.7 100
WEBBER SPRINGS 9250 12.4 13.1 95 15.6 15.0 104
WILLOW CREEK PASS 9540 8.6 6.2 139 9.5 7.1 134
----- -----
Basin wide percent of average 105 113
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 10.8 12.5 86 11.8 11.7 101
CASPER MTN. 7900 5.2 7.7 68 7.9 7.8 101
DEADMAN HILL 10220 9.1 8.7 105 9.3 8.8 106
DEER PARK 9700 7.4 9.0 82 11.0 12.2 90
LAPRELE CREEK 8375 2.5 6.1 41 5.2 6.9 75
RENO HILL 8400 5.6 7.3 77 7.6 8.0 95
ROACH 9700 10.6 8.6 123 12.8 9.7 132
SAND LAKE 10050 14.2 16.7 85 14.6 13.3 110
SOUTH PASS 9040 6.4 9.5 67 9.2 10.2 90
WINDY PEAK 7900 3.5 3.8 92 5.0 6.1 82
----- -----
Basin wide percent of average 84 100
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 7.4 5.5 135 9.8 8.2 120
DIVIDE PEAK 8880 12.3 10.7 115 12.7 11.4 111
OLD BATTLE 10000 16.4 16.5 99 20.0 18.5 108
SANDSTONE RS 8150 7.9 6.8 116 11.5 10.3 112
WHISKEY PARK 8950 14.5 13.6 107 18.4 15.6 118
----- -----
Basin wide percent of average 110 113
UPPER GREEN RIVER
BIG SANDY OPENING 9080 6.9 7.8 88 7.5 7.5 100
BLIND BULL SUM 8650 11.9 15.1 79 10.4 12.8 81
EAST RIM DIVIDE 7930 3.7 6.8 54 6.2 6.7 93
ELKHART PARK G.S. 9400 5.5 7.2 76 6.8 7.6 89
GROS VENTRE SUMMIT 8750 7.7 7.9 97 8.9 7.2 124
GUNSIGHT PASS 9820 5.1 -M * 8.8 -M *
KENDALL R.S. 7740 5.2 7.9 66 7.4 8.0 92
LOOMIS PARK 8240 7.6 9.2 83 9.3 9.7 96
NEW FORK LAKE 8340 4.5 6.2 73 5.3 6.7 79
SNIDER BASIN 8060 5.3 7.9 67 6.9 9.2 75
SPRING CREEK DIVIDE 9000 10.8 14.3 76 11.6 15.2 76
TRIPLE PEAK 8500 11.1 13.6 82 14.2 13.1 108
----- -----
Basin wide percent of average 77 91
LOWER GREEN RIVER
HAMS FORK 7840 4.7 6.5 72 5.3 6.8 78
HEWINTA 9519 4.9 5.0 98 9.6 7.8 123
HICKERSON PARK 9145 2.6 3.4 76 5.4 4.5 120
HOLE-IN-ROCK 9150 2.2 3.1 71 5.6 4.2 133
INDIAN CREEK 9425 10.5 14.4 73 10.2 14.0 73
KELLEY R.S. 8180 6.6 8.7 76 9.1 11.7 78
STEEL CREEK PARK 10200 6.4 7.6 84 10.5 8.5 124
----- -----
Basin wide percent of average 78 97
UPPER BEAR RIVER
BUG LAKE 7950 7.7 10.1 76 8.7 10.6 82
HAYDEN FORK 9212 8.7 7.5 116 12.0 11.4 105
KELLEY R.S. 8180 6.6 8.7 76 9.1 11.7 78
LILY LAKE 9156 6.3 6.4 98 9.3 9.7 96
MONTE CRISTO 8960 13.6 13.5 101 14.3 13.8 104
SALT RIVER SUMMIT 7760 5.2 6.7 78 7.5 10.4 72
TRIAL LAKE 9992 9.0 12.3 73 11.8 13.0 91
----- -----
Basin wide percent of average 88 90
-----------------------------------------------------------------------------
-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 1961-90.
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.