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: FEBRUARY 6 , 2008
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 13.1 13.3 98 19.5 15.5 126
COTTONWOOD CREEK 7670 15.1 14.9 101 17.3 19.4 89
GRAND TARGHEE 9260 34.2 -M * 23.7 -M *
GRANITE CREEK 6770 11.9 13.0 92 17.4 14.4 121
GRASSY LAKE 7265 21.3 24.2 88 29.2 26.1 112
GROS VENTRE SUMMIT 8750 9.5 9.8 97 10.8 9.0 120
GUNSIGHT PASS 9820 6.5 -M * 10.4 -M *
LEWIS LAKE DIVIDE 7850 22.6 24.3 93 27.4 26.0 105
PHILLIPS BENCH 8200 21.2 19.5 109 24.2 20.4 119
SALT RIVER SUMMIT 7760 8.4 9.8 86 10.4 13.1 79
SNAKE RIVER STATION 6920 11.8 13.3 89 19.6 16.3 120
SPRING CREEK DIVIDE 9000 14.6 18.2 80 15.0 19.0 79
THUMB DIVIDE 7980 11.8 12.4 95 14.7 13.3 111
TOGWOTEE PASS 9580 18.8 17.6 107 20.7 17.5 118
TWO OCEAN PLATEAU 9240 26.1 19.8 132 21.7 19.3 112
WILLOW CREEK 8380 19.5 21.1 92 25.0 22.6 111
----- -----
Basin wide percent of average 98 108
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 17.6 16.6 106 16.7 14.5 115
BLACK BEAR 8170 33.5 26.4 127 31.4 27.3 115
CANYON 7870 12.1 9.2 132 15.2 11.2 136
FISHER CREEK 9100 29.6 24.4 121 27.2 25.6 106
MADISON PLATEAU 7750 21.4 16.6 129 24.4 18.3 133
NORTHEAST ENTRANCE 7350 5.7 8.0 71 9.5 9.2 103
PARKER PEAK 9400 17.5 15.2 115 16.8 11.5 146
SYLVAN LAKE 8420 14.7 15.5 95 19.1 15.3 125
THUMB DIVIDE 7980 11.8 12.4 95 14.7 13.3 111
TWO OCEAN PLATEAU 9240 26.1 19.8 132 21.7 19.3 112
WHISKEY CREEK 6800 13.6 11.5 118 18.8 14.4 131
WHITE MILL 8700 18.3 16.5 111 19.1 19.0 101
WOLVERINE 7650 6.2 8.9 70 9.6 9.5 101
----- -----
Basin wide percent of average 113 117
WIND RIVER
BURROUGHS CREEK 8750 11.3 10.4 109 14.0 11.7 120
COLD SPRINGS 9630 4.3 6.1 70 7.2 7.3 99
DEER PARK 9700 10.0 11.7 85 13.9 15.2 91
HOBBS PARK 10100 8.7 10.0 87 9.4 8.5 111
LITTLE WARM 9370 6.8 7.9 86 9.8 9.4 104
SOUTH PASS 9040 8.7 11.6 75 11.6 12.8 91
ST. LAWRENCE ALT 8620 3.8 4.9 78 5.8 5.9 98
TOGWOTEE PASS 9580 18.8 17.6 107 20.7 17.5 118
TOWNSEND CREEK 8700 4.7 5.7 82 7.9 7.6 104
----- -----
Basin wide percent of average 90 105
BIGHORN BASIN
BALD MTN. 9380 10.8 13.8 78 11.0 12.2 90
BEAR TRAP MEADOW 8200 5.6 3.7 151 6.4 5.7 112
BLACKWATER 9780 17.5 16.9 104 16.4 14.7 112
BONE SPRINGS DIV 9350 10.3 10.9 94 12.6 9.9 127
EVENING STAR 9200 20.1 20.3 99 22.6 18.3 123
GRAVE SPRINGS 8550 5.6 6.0 93 7.0 6.6 106
KIRWIN 9550 8.9 7.8 114 10.5 7.8 135
MARQUETTE 8760 2.3 6.0 38 6.7 6.4 105
MIDDLE POWDER 7760 6.3 7.6 83 6.1 8.5 72
OWL CREEK 8975 3.7 3.5 106 5.1 3.8 134
POWDER RIVER PASS 9480 7.8 7.4 105 9.7 8.6 113
SHELL CREEK 9580 10.7 10.2 105 10.8 9.6 113
SYLVAN LAKE 8420 14.7 15.5 95 19.1 15.3 125
SYLVAN ROAD 7120 7.6 9.1 84 16.1 13.7 118
TIMBER CREEK 7950 2.0 3.7 54 6.1 4.6 133
YOUNTS PEAK 8350 12.2 12.2 100 13.5 11.8 114
----- -----
Basin wide percent of average 95 114
SHOSHONE RIVER
BLACKWATER 9780 17.5 16.9 104 16.4 14.7 112
EVENING STAR 9200 20.1 20.3 99 22.6 18.3 123
KIRWIN 9550 8.9 7.8 114 10.5 7.8 135
MARQUETTE 8760 2.3 6.0 38 6.7 6.4 105
SYLVAN LAKE 8420 14.7 15.5 95 19.1 15.3 125
SYLVAN ROAD 7120 7.6 9.1 84 16.1 13.7 118
YOUNTS PEAK 8350 12.2 12.2 100 13.5 11.8 114
----- -----
Basin wide percent of average 95 119
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.6 3.7 151 6.4 5.7 112
BIG GOOSE 7990 5.3 6.3 84 8.3 5.9 141
BONE SPRINGS DIV 9350 10.3 10.9 94 12.6 9.9 127
BURGESS JUNCTION 7880 7.2 7.6 95 9.2 8.2 112
CLOUD PEAK RESERVOIR 9860 9.5 8.3 114 10.7 8.4 127
DOME LAKE 8880 6.7 8.2 82 10.0 9.0 111
GRAVE SPRINGS 8550 5.6 6.0 93 7.0 6.6 106
HANSEN SAWMILL 8360 4.2 4.3 98 6.4 5.4 119
MIDDLE POWDER 7760 6.3 7.6 83 6.1 8.5 72
POWDER RIVER PASS 9480 7.8 7.4 105 9.7 8.6 113
SUCKER CREEK 8880 8.4 7.5 112 10.4 9.1 114
TIE CREEK 6870 3.9 4.2 93 7.9 7.0 113
----- -----
Basin wide percent of average 99 113
BELLE FOURCHE
BLIND PARK 6890 3.9 5.6 70 6.5 8.0 81
COLE CANYON 5910 3.5 4.7 74 4.7 4.8 98
NORTH RAPID CREEK 6130 4.5 5.3 85 5.1 6.5 78
----- -----
Basin wide percent of average 76 84
UPPER N. PLATTE RIVER
COLUMBINE 9160 16.6 17.5 95 19.2 17.3 111
DIVIDE PEAK 8880 16.7 13.4 125 17.0 14.2 120
ELK RIVER 8700 16.4 12.9 127 16.8 13.3 126
JOE WRIGHT 10120 15.8 14.5 109 18.9 16.8 112
NORTH FRENCH CREEK 10130 20.9 19.1 109 21.0 17.0 124
OLD BATTLE 10000 23.0 21.1 109 27.1 23.4 116
SAGE CREEK BASIN 7850 12.7 7.8 163 14.1 8.3 170
SOUTH BRUSH CREEK 8440 8.6 7.8 110 12.0 11.3 106
TOWER 10500 28.5 31.5 90 28.6 26.5 108
WEBBER SPRINGS 9250 17.6 16.9 104 20.9 18.7 112
WILLOW CREEK PASS 9540 11.2 7.9 142 11.5 8.6 134
----- -----
Basin wide percent of average 110 118
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 14.0 16.0 88 14.9 14.8 101
CASPER MTN. 7900 6.9 9.4 73 9.4 9.3 101
DEADMAN HILL 10220 11.4 11.0 104 11.7 11.0 106
DEER PARK 9700 10.0 11.7 85 13.9 15.2 91
LAPRELE CREEK 8375 -M 7.5 * -M 8.4 *
RENO HILL 8400 7.4 8.7 85 9.1 9.7 94
ROACH 9700 13.4 11.5 117 15.7 12.1 130
SAND LAKE 10050 18.5 20.7 89 18.5 16.4 113
SOUTH PASS 9040 8.7 11.6 75 11.6 12.8 91
WINDY PEAK 7900 4.9 4.8 102 6.6 7.2 92
----- -----
Basin wide percent of average 90 103
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 11.3 8.2 138 12.7 10.3 123
DIVIDE PEAK 8880 16.7 13.4 125 17.0 14.2 120
OLD BATTLE 10000 23.0 21.1 109 27.1 23.4 116
SANDSTONE RS 8150 12.6 10.2 124 15.9 13.1 121
WHISKEY PARK 8950 20.8 19.5 107 24.6 20.1 122
----- -----
Basin wide percent of average 117 120
UPPER GREEN RIVER
BIG SANDY OPENING 9080 9.2 10.0 92 9.5 9.4 101
BLIND BULL SUM 8650 15.9 19.2 83 13.2 16.0 82
EAST RIM DIVIDE 7930 5.4 8.9 61 7.7 8.4 92
ELKHART PARK G.S. 9400 7.7 9.2 84 8.6 9.2 93
GROS VENTRE SUMMIT 8750 9.5 9.8 97 10.8 9.0 120
GUNSIGHT PASS 9820 6.5 -M * 10.4 -M *
KENDALL R.S. 7740 7.6 10.3 74 9.6 10.2 94
LOOMIS PARK 8240 10.5 11.8 89 12.1 12.3 98
NEW FORK LAKE 8340 6.1 8.0 76 6.6 8.1 81
SNIDER BASIN 8060 7.9 10.2 77 9.3 11.5 81
SPRING CREEK DIVIDE 9000 14.6 18.2 80 15.0 19.0 79
TRIPLE PEAK 8500 15.1 17.4 87 18.2 16.9 108
----- -----
Basin wide percent of average 82 93
LOWER GREEN RIVER
HAMS FORK 7840 7.5 8.8 85 7.1 8.7 82
HEWINTA 9519 7.0 7.1 99 11.7 9.7 121
HICKERSON PARK 9145 3.8 4.7 81 6.4 5.4 119
HOLE-IN-ROCK 9150 3.1 4.4 70 6.5 4.9 133
INDIAN CREEK 9425 15.2 18.4 83 13.1 17.5 75
KELLEY R.S. 8180 9.4 11.2 84 11.9 14.4 83
STEEL CREEK PARK 10200 9.2 9.9 93 12.9 10.6 122
----- -----
Basin wide percent of average 86 98
UPPER BEAR RIVER
BUG LAKE 7950 11.8 13.9 85 12.0 13.5 89
HAYDEN FORK 9212 13.0 10.4 125 16.8 14.2 118
KELLEY R.S. 8180 9.4 11.2 84 11.9 14.4 83
LILY LAKE 9156 9.8 8.6 114 12.8 11.9 108
MONTE CRISTO 8960 19.9 19.3 103 19.5 17.4 112
SALT RIVER SUMMIT 7760 8.4 9.8 86 10.4 13.1 79
TRIAL LAKE 9992 14.2 16.5 86 17.6 16.6 106
----- -----
Basin wide percent of average 96 100
-----------------------------------------------------------------------------
-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.