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 13 , 2008
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 14.2 14.2 100 20.8 16.4 127
COTTONWOOD CREEK 7670 17.8 15.8 113 19.8 20.4 97
GRAND TARGHEE 9260 36.6 -M * 25.1 -M *
GRANITE CREEK 6770 13.4 13.9 96 18.9 15.3 124
GRASSY LAKE 7265 23.8 25.8 92 31.4 27.5 114
GROS VENTRE SUMMIT 8750 10.7 10.2 105 11.7 9.5 123
GUNSIGHT PASS 9820 10.1 -M * 11.5 -M *
LEWIS LAKE DIVIDE 7850 24.8 25.9 96 29.1 27.5 106
PHILLIPS BENCH 8200 23.5 20.8 113 26.8 21.6 124
SALT RIVER SUMMIT 7760 10.2 10.6 96 12.2 13.9 88
SNAKE RIVER STATION 6920 13.3 14.3 93 21.1 17.2 123
SPRING CREEK DIVIDE 9000 17.5 19.3 91 17.9 20.0 89
THUMB DIVIDE 7980 12.6 13.2 95 15.3 14.0 109
TOGWOTEE PASS 9580 21.1 18.5 114 23.0 18.4 125
TWO OCEAN PLATEAU 9240 27.8 20.8 134 22.1 20.4 108
WILLOW CREEK 8380 23.0 22.4 103 28.6 23.9 120
----- -----
Basin wide percent of average 103 112
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 19.9 17.8 112 18.6 15.3 122
BLACK BEAR 8170 35.9 28.3 127 32.9 29.0 113
CANYON 7870 13.3 9.8 136 16.6 11.7 142
FISHER CREEK 9100 33.5 26.1 128 30.6 27.0 113
MADISON PLATEAU 7750 23.1 18.0 128 25.9 19.4 134
NORTHEAST ENTRANCE 7350 7.1 8.5 84 10.6 9.7 109
PARKER PEAK 9400 19.4 16.0 121 -M 12.1 *
SYLVAN LAKE 8420 15.8 16.3 97 20.2 16.1 125
THUMB DIVIDE 7980 12.6 13.2 95 15.3 14.0 109
TWO OCEAN PLATEAU 9240 27.8 20.8 134 22.1 20.4 108
WHISKEY CREEK 6800 14.6 12.4 118 20.9 15.2 138
WHITE MILL 8700 20.9 17.7 118 -M 20.1 *
WOLVERINE 7650 7.9 9.4 84 10.5 10.0 105
----- -----
Basin wide percent of average 117 119
WIND RIVER
BURROUGHS CREEK 8750 12.6 11.0 115 15.4 12.2 126
COLD SPRINGS 9630 5.1 6.3 81 8.0 7.6 105
DEER PARK 9700 10.2 13.1 78 14.6 16.0 91
HOBBS PARK 10100 9.1 10.4 87 9.9 8.9 111
LITTLE WARM 9370 7.5 8.3 90 10.8 9.8 110
SOUTH PASS 9040 9.3 12.1 77 12.0 13.4 90
ST. LAWRENCE ALT 8620 4.1 5.1 80 5.8 6.2 94
TOGWOTEE PASS 9580 21.1 18.5 114 23.0 18.4 125
TOWNSEND CREEK 8700 5.0 6.1 82 7.9 7.9 100
----- -----
Basin wide percent of average 92 107
BIGHORN BASIN
BALD MTN. 9380 11.9 14.3 83 11.8 12.7 93
BEAR TRAP MEADOW 8200 6.0 3.8 158 6.6 5.9 112
BLACKWATER 9780 19.2 17.8 108 18.0 15.4 117
BONE SPRINGS DIV 9350 12.0 11.5 104 13.8 10.4 133
EVENING STAR 9200 23.2 21.9 106 25.8 19.3 134
GRAVE SPRINGS 8550 6.2 6.3 98 7.3 6.8 107
KIRWIN 9550 9.4 8.2 115 11.5 8.2 140
MARQUETTE 8760 2.9 6.2 47 6.8 6.7 101
MIDDLE POWDER 7760 6.8 7.9 86 6.2 8.8 70
OWL CREEK 8975 3.9 3.6 108 5.3 4.0 132
POWDER RIVER PASS 9480 8.8 7.7 114 10.8 9.0 120
SHELL CREEK 9580 12.0 10.6 113 11.8 10.0 118
SYLVAN LAKE 8420 15.8 16.3 97 20.2 16.1 125
SYLVAN ROAD 7120 8.4 9.8 86 17.1 14.3 120
TIMBER CREEK 7950 2.2 3.9 56 5.6 4.8 117
YOUNTS PEAK 8350 13.6 12.9 105 14.9 12.3 121
----- -----
Basin wide percent of average 100 117
SHOSHONE RIVER
BLACKWATER 9780 19.2 17.8 108 18.0 15.4 117
EVENING STAR 9200 23.2 21.9 106 25.8 19.3 134
KIRWIN 9550 9.4 8.2 115 11.5 8.2 140
MARQUETTE 8760 2.9 6.2 47 6.8 6.7 101
SYLVAN LAKE 8420 15.8 16.3 97 20.2 16.1 125
SYLVAN ROAD 7120 8.4 9.8 86 17.1 14.3 120
YOUNTS PEAK 8350 13.6 12.9 105 14.9 12.3 121
----- -----
Basin wide percent of average 99 124
POWDER-TONGUE
BEAR TRAP MEADOW 8200 6.0 3.8 158 6.6 5.9 112
BIG GOOSE 7990 5.7 6.7 85 8.6 6.1 141
BONE SPRINGS DIV 9350 12.0 11.5 104 13.8 10.4 133
BURGESS JUNCTION 7880 7.9 8.0 99 9.6 8.5 113
CLOUD PEAK RESERVOIR 9860 10.7 8.8 122 11.1 8.8 126
DOME LAKE 8880 7.6 8.7 87 10.8 9.3 116
GRAVE SPRINGS 8550 6.2 6.3 98 7.3 6.8 107
HANSEN SAWMILL 8360 4.7 4.5 104 7.0 5.7 123
MIDDLE POWDER 7760 6.8 7.9 86 6.2 8.8 70
POWDER RIVER PASS 9480 8.8 7.7 114 10.8 9.0 120
SUCKER CREEK 8880 9.1 7.9 115 11.1 9.5 117
TIE CREEK 6870 4.3 4.4 98 8.2 7.2 114
----- -----
Basin wide percent of average 104 116
BELLE FOURCHE
BLIND PARK 6890 5.1 5.8 88 7.8 8.4 93
COLE CANYON 5910 4.7 5.0 94 5.5 5.0 110
NORTH RAPID CREEK 6130 5.9 5.8 102 6.1 6.8 90
----- -----
Basin wide percent of average 95 96
UPPER N. PLATTE RIVER
COLUMBINE 9160 19.8 18.9 105 21.4 18.3 117
DIVIDE PEAK 8880 17.8 14.0 127 18.0 15.0 120
ELK RIVER 8700 18.8 13.9 135 18.4 14.1 130
JOE WRIGHT 10120 17.6 15.3 115 20.6 17.8 116
NORTH FRENCH CREEK 10130 22.6 20.0 113 22.2 17.9 124
OLD BATTLE 10000 25.1 22.5 112 29.9 24.7 121
SAGE CREEK BASIN 7850 13.7 8.1 169 15.2 8.7 175
SOUTH BRUSH CREEK 8440 8.9 8.4 106 12.6 11.9 106
TOWER 10500 33.5 33.3 101 30.3 28.0 108
WEBBER SPRINGS 9250 19.5 18.1 108 22.8 19.6 116
WILLOW CREEK PASS 9540 12.1 8.4 144 12.2 9.1 134
----- -----
Basin wide percent of average 116 121
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 16.0 16.8 95 16.5 15.5 106
CASPER MTN. 7900 7.6 9.9 77 9.8 9.7 101
DEADMAN HILL 10220 12.5 11.6 108 12.9 11.6 111
DEER PARK 9700 10.2 13.1 78 14.6 16.0 91
LAPRELE CREEK 8375 -M 7.9 * -M 8.8 *
RENO HILL 8400 7.9 9.1 87 9.8 10.2 96
ROACH 9700 14.6 12.3 119 17.1 12.8 134
SAND LAKE 10050 20.1 21.9 92 20.1 17.2 117
SOUTH PASS 9040 9.3 12.1 77 12.0 13.4 90
WINDY PEAK 7900 5.2 5.2 100 6.9 7.5 92
----- -----
Basin wide percent of average 92 105
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 12.3 8.6 143 13.5 10.8 125
DIVIDE PEAK 8880 17.8 14.0 127 18.0 15.0 120
OLD BATTLE 10000 25.1 22.5 112 29.9 24.7 121
SANDSTONE RS 8150 13.8 10.9 127 17.1 13.8 124
WHISKEY PARK 8950 24.2 20.7 117 27.4 21.0 130
----- -----
Basin wide percent of average 122 124
UPPER GREEN RIVER
BIG SANDY OPENING 9080 10.2 10.6 96 10.5 10.0 105
BLIND BULL SUM 8650 18.8 20.3 93 14.5 16.9 86
EAST RIM DIVIDE 7930 6.9 9.6 72 9.1 8.9 102
ELKHART PARK G.S. 9400 9.0 9.7 93 9.8 9.7 101
GROS VENTRE SUMMIT 8750 10.7 10.2 105 11.7 9.5 123
GUNSIGHT PASS 9820 10.1 -M * 11.5 -M *
KENDALL R.S. 7740 9.4 10.8 87 11.2 10.8 104
LOOMIS PARK 8240 12.4 12.5 99 14.1 13.0 108
NEW FORK LAKE 8340 7.7 8.5 91 -M 8.6 *
SNIDER BASIN 8060 10.0 10.9 92 11.1 12.2 91
SPRING CREEK DIVIDE 9000 17.5 19.3 91 17.9 20.0 89
TRIPLE PEAK 8500 17.8 18.4 97 21.0 17.9 117
----- -----
Basin wide percent of average 93 102
LOWER GREEN RIVER
HAMS FORK 7840 8.9 9.4 95 7.7 9.2 84
HEWINTA 9519 8.3 7.7 108 12.9 10.2 126
HICKERSON PARK 9145 4.2 5.0 84 6.9 5.6 123
HOLE-IN-ROCK 9150 3.8 4.8 79 7.0 5.2 135
INDIAN CREEK 9425 17.3 19.4 89 13.4 18.5 72
KELLEY R.S. 8180 -M 12.0 * -M 15.2 *
STEEL CREEK PARK 10200 10.3 10.7 96 14.0 11.2 125
----- -----
Basin wide percent of average 93 103
UPPER BEAR RIVER
BUG LAKE 7950 13.0 14.8 88 12.8 14.2 90
HAYDEN FORK 9212 14.0 11.2 125 18.0 15.0 120
KELLEY R.S. 8180 -M 12.0 * -M 15.2 *
LILY LAKE 9156 10.8 9.3 116 13.7 12.6 109
MONTE CRISTO 8960 21.0 20.9 100 20.7 18.5 112
SALT RIVER SUMMIT 7760 10.2 10.6 96 12.2 13.9 88
TRIAL LAKE 9992 15.5 17.7 88 18.7 17.7 106
----- -----
Basin wide percent of average 100 105
-----------------------------------------------------------------------------
-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.