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: FEBRUARY 10 , 2008
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 14.1 13.8 102 20.7 16.0 129
COTTONWOOD CREEK 7670 17.5 15.4 114 19.8 19.9 99
GRAND TARGHEE 9260 36.1 -M * 24.9 -M *
GRANITE CREEK 6770 13.3 13.6 98 18.8 14.9 126
GRASSY LAKE 7265 23.2 25.1 92 30.9 26.9 115
GROS VENTRE SUMMIT 8750 10.3 10.0 103 11.4 9.2 124
GUNSIGHT PASS 9820 9.7 -M * 11.1 -M *
LEWIS LAKE DIVIDE 7850 24.0 25.2 95 28.9 26.9 107
PHILLIPS BENCH 8200 23.2 20.2 115 26.6 21.1 126
SALT RIVER SUMMIT 7760 10.1 10.3 98 12.2 13.6 90
SNAKE RIVER STATION 6920 12.8 13.9 92 20.9 16.8 124
SPRING CREEK DIVIDE 9000 16.9 18.8 90 17.3 19.6 88
THUMB DIVIDE 7980 12.4 12.9 96 15.1 13.7 110
TOGWOTEE PASS 9580 20.5 18.2 113 22.3 18.0 124
TWO OCEAN PLATEAU 9240 27.0 20.4 132 22.1 19.9 111
WILLOW CREEK 8380 22.7 21.8 104 28.2 23.3 121
----- -----
Basin wide percent of average 104 114
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 18.9 17.3 109 17.9 14.9 120
BLACK BEAR 8170 35.2 27.5 128 32.4 28.3 114
CANYON 7870 12.7 9.6 132 16.0 11.5 139
FISHER CREEK 9100 31.9 25.4 126 -M 26.4 *
MADISON PLATEAU 7750 22.6 17.5 129 25.5 18.9 135
NORTHEAST ENTRANCE 7350 6.7 8.4 80 10.1 9.5 106
PARKER PEAK 9400 18.7 15.7 119 -M 11.9 *
SYLVAN LAKE 8420 15.4 16.0 96 19.5 15.8 123
THUMB DIVIDE 7980 12.4 12.9 96 15.1 13.7 110
TWO OCEAN PLATEAU 9240 27.0 20.4 132 22.1 19.9 111
WHISKEY CREEK 6800 14.4 12.0 120 19.9 14.8 134
WHITE MILL 8700 19.8 17.2 115 -M 19.6 *
WOLVERINE 7650 7.4 9.2 80 9.9 9.8 101
----- -----
Basin wide percent of average 116 120
WIND RIVER
BURROUGHS CREEK 8750 12.1 10.8 112 14.9 12.0 124
COLD SPRINGS 9630 4.9 6.2 79 7.8 7.5 104
DEER PARK 9700 10.2 12.8 80 14.5 15.7 92
HOBBS PARK 10100 9.0 10.3 87 9.8 8.7 113
LITTLE WARM 9370 7.3 8.2 89 10.6 9.6 110
SOUTH PASS 9040 9.2 12.0 77 12.0 13.2 91
ST. LAWRENCE ALT 8620 4.1 5.0 82 5.9 6.1 97
TOGWOTEE PASS 9580 20.5 18.2 113 22.3 18.0 124
TOWNSEND CREEK 8700 5.0 6.0 83 7.9 7.8 101
----- -----
Basin wide percent of average 92 107
BIGHORN BASIN
BALD MTN. 9380 11.2 14.1 79 11.4 12.5 91
BEAR TRAP MEADOW 8200 5.8 3.7 157 6.5 5.8 112
BLACKWATER 9780 18.7 17.5 107 17.5 15.1 116
BONE SPRINGS DIV 9350 11.3 11.2 101 13.2 10.2 129
EVENING STAR 9200 21.7 21.3 102 23.2 18.9 123
GRAVE SPRINGS 8550 5.7 6.1 93 6.9 6.7 103
KIRWIN 9550 9.2 8.0 115 11.1 8.1 137
MARQUETTE 8760 2.9 6.1 48 6.7 6.6 102
MIDDLE POWDER 7760 6.4 7.7 83 6.1 8.6 71
OWL CREEK 8975 3.8 3.6 106 5.2 3.9 133
POWDER RIVER PASS 9480 8.4 7.6 111 10.4 8.8 118
SHELL CREEK 9580 11.5 10.4 111 11.4 9.8 116
SYLVAN LAKE 8420 15.4 16.0 96 19.5 15.8 123
SYLVAN ROAD 7120 8.2 9.6 85 16.8 14.1 119
TIMBER CREEK 7950 2.2 3.8 58 5.5 4.8 115
YOUNTS PEAK 8350 13.1 12.7 103 -M 12.1 *
----- -----
Basin wide percent of average 98 114
SHOSHONE RIVER
BLACKWATER 9780 18.7 17.5 107 17.5 15.1 116
EVENING STAR 9200 21.7 21.3 102 23.2 18.9 123
KIRWIN 9550 9.2 8.0 115 11.1 8.1 137
MARQUETTE 8760 2.9 6.1 48 6.7 6.6 102
SYLVAN LAKE 8420 15.4 16.0 96 19.5 15.8 123
SYLVAN ROAD 7120 8.2 9.6 85 16.8 14.1 119
YOUNTS PEAK 8350 13.1 12.7 103 -M 12.1 *
----- -----
Basin wide percent of average 98 121
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.8 3.7 157 6.5 5.8 112
BIG GOOSE 7990 5.5 6.5 85 8.4 6.1 138
BONE SPRINGS DIV 9350 11.3 11.2 101 13.2 10.2 129
BURGESS JUNCTION 7880 7.5 7.8 96 9.3 8.4 111
CLOUD PEAK RESERVOIR 9860 10.1 8.6 117 10.7 8.7 123
DOME LAKE 8880 7.1 8.5 84 10.3 9.2 112
GRAVE SPRINGS 8550 5.7 6.1 93 6.9 6.7 103
HANSEN SAWMILL 8360 4.6 4.4 105 6.8 5.6 121
MIDDLE POWDER 7760 6.4 7.7 83 6.1 8.6 71
POWDER RIVER PASS 9480 8.4 7.6 111 10.4 8.8 118
SUCKER CREEK 8880 8.8 7.8 113 10.8 9.3 116
TIE CREEK 6870 4.1 4.3 95 8.1 7.1 114
----- -----
Basin wide percent of average 101 114
BELLE FOURCHE
BLIND PARK 6890 4.2 5.7 74 6.5 8.2 79
COLE CANYON 5910 3.7 4.9 76 5.0 4.9 102
NORTH RAPID CREEK 6130 4.7 5.6 84 5.2 6.7 78
----- -----
Basin wide percent of average 78 84
UPPER N. PLATTE RIVER
COLUMBINE 9160 19.0 18.3 104 21.2 17.9 118
DIVIDE PEAK 8880 17.7 13.7 129 17.9 14.7 122
ELK RIVER 8700 18.3 13.5 136 18.1 13.7 132
JOE WRIGHT 10120 16.8 15.0 112 20.0 17.4 115
NORTH FRENCH CREEK 10130 21.9 19.6 112 21.7 17.5 124
OLD BATTLE 10000 24.7 21.9 113 29.4 24.2 121
SAGE CREEK BASIN 7850 13.6 7.9 172 15.1 8.5 178
SOUTH BRUSH CREEK 8440 8.7 8.1 107 12.4 11.7 106
TOWER 10500 32.2 32.5 99 30.1 27.4 110
WEBBER SPRINGS 9250 19.0 17.6 108 22.4 19.2 117
WILLOW CREEK PASS 9540 11.8 8.2 144 12.0 8.9 135
----- -----
Basin wide percent of average 116 122
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 15.3 16.5 93 16.0 15.2 105
CASPER MTN. 7900 7.5 9.7 77 9.8 9.5 103
DEADMAN HILL 10220 12.1 11.3 107 12.5 11.4 110
DEER PARK 9700 10.2 12.8 80 14.5 15.7 92
LAPRELE CREEK 8375 -M 7.7 * -M 8.7 *
RENO HILL 8400 7.7 8.9 87 9.7 10.0 97
ROACH 9700 14.0 12.0 117 16.6 12.5 133
SAND LAKE 10050 19.4 21.4 91 19.6 16.9 116
SOUTH PASS 9040 9.2 12.0 77 12.0 13.2 91
WINDY PEAK 7900 5.1 5.0 102 6.8 7.4 92
----- -----
Basin wide percent of average 92 105
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 12.2 8.4 145 13.5 10.6 127
DIVIDE PEAK 8880 17.7 13.7 129 17.9 14.7 122
OLD BATTLE 10000 24.7 21.9 113 29.4 24.2 121
SANDSTONE RS 8150 13.8 10.6 130 17.1 13.5 127
WHISKEY PARK 8950 23.5 20.2 116 26.2 20.6 127
----- -----
Basin wide percent of average 123 125
UPPER GREEN RIVER
BIG SANDY OPENING 9080 10.0 10.3 97 10.3 9.7 106
BLIND BULL SUM 8650 18.2 19.8 92 14.3 16.5 87
EAST RIM DIVIDE 7930 6.8 9.3 73 9.0 8.7 103
ELKHART PARK G.S. 9400 8.8 9.5 93 9.7 9.5 102
GROS VENTRE SUMMIT 8750 10.3 10.0 103 11.4 9.2 124
GUNSIGHT PASS 9820 9.7 -M * 11.1 -M *
KENDALL R.S. 7740 9.0 10.6 85 10.9 10.6 103
LOOMIS PARK 8240 12.1 12.2 99 13.8 12.7 109
NEW FORK LAKE 8340 7.5 8.3 90 7.8 8.4 93
SNIDER BASIN 8060 9.5 10.6 90 10.7 11.9 90
SPRING CREEK DIVIDE 9000 16.9 18.8 90 17.3 19.6 88
TRIPLE PEAK 8500 17.2 17.9 96 20.4 17.5 117
----- -----
Basin wide percent of average 92 101
LOWER GREEN RIVER
HAMS FORK 7840 8.9 9.2 97 7.7 9.0 86
HEWINTA 9519 8.3 7.4 112 12.9 10.0 129
HICKERSON PARK 9145 4.2 4.9 86 6.8 5.5 124
HOLE-IN-ROCK 9150 3.7 4.6 80 7.0 5.1 137
INDIAN CREEK 9425 17.0 19.0 89 13.3 18.1 73
KELLEY R.S. 8180 -M 11.6 * -M 14.9 *
STEEL CREEK PARK 10200 10.2 10.4 98 14.0 11.0 127
----- -----
Basin wide percent of average 94 105
UPPER BEAR RIVER
BUG LAKE 7950 13.0 14.4 90 12.8 13.9 92
HAYDEN FORK 9212 14.0 10.8 130 17.9 14.6 123
KELLEY R.S. 8180 -M 11.6 * -M 14.9 *
LILY LAKE 9156 10.8 9.0 120 13.5 12.3 110
MONTE CRISTO 8960 21.2 20.3 104 20.7 18.0 115
SALT RIVER SUMMIT 7760 10.1 10.3 98 12.2 13.6 90
TRIAL LAKE 9992 15.4 17.2 90 18.6 17.2 108
----- -----
Basin wide percent of average 103 107
-----------------------------------------------------------------------------
-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.