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: FEBRUARY 9 , 2008
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 13.9 13.7 101 20.5 15.9 129
COTTONWOOD CREEK 7670 16.6 15.3 108 18.8 19.8 95
GRAND TARGHEE 9260 35.5 -M * 24.4 -M *
GRANITE CREEK 6770 13.0 13.4 97 18.4 14.8 124
GRASSY LAKE 7265 22.7 24.9 91 30.4 26.7 114
GROS VENTRE SUMMIT 8750 10.3 10.0 103 11.4 9.2 124
GUNSIGHT PASS 9820 9.7 -M * 11.0 -M *
LEWIS LAKE DIVIDE 7850 23.8 25.0 95 28.4 26.6 107
PHILLIPS BENCH 8200 22.9 20.0 114 25.5 20.9 122
SALT RIVER SUMMIT 7760 9.7 10.1 96 11.8 13.5 87
SNAKE RIVER STATION 6920 12.5 13.8 91 20.6 16.7 123
SPRING CREEK DIVIDE 9000 16.4 18.7 88 16.6 19.4 86
THUMB DIVIDE 7980 12.2 12.7 96 14.9 13.6 110
TOGWOTEE PASS 9580 20.1 18.0 112 21.9 17.9 122
TWO OCEAN PLATEAU 9240 26.9 20.2 133 21.9 19.8 111
WILLOW CREEK 8380 21.5 21.7 99 26.8 23.2 116
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Basin wide percent of average 102 112
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 18.4 17.1 108 17.5 14.8 118
BLACK BEAR 8170 34.9 27.2 128 32.2 28.0 115
CANYON 7870 12.6 9.5 133 15.8 11.4 139
FISHER CREEK 9100 31.3 25.1 125 -M 26.2 *
MADISON PLATEAU 7750 22.4 17.2 130 25.3 18.7 135
NORTHEAST ENTRANCE 7350 6.3 8.2 77 9.9 9.4 105
PARKER PEAK 9400 18.3 15.5 118 -M 11.8 *
SYLVAN LAKE 8420 15.3 15.9 96 19.5 15.7 124
THUMB DIVIDE 7980 12.2 12.7 96 14.9 13.6 110
TWO OCEAN PLATEAU 9240 26.9 20.2 133 21.9 19.8 111
WHISKEY CREEK 6800 14.3 11.9 120 19.7 14.7 134
WHITE MILL 8700 19.3 17.0 114 -M 19.5 *
WOLVERINE 7650 7.0 9.1 77 9.6 9.7 99
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Basin wide percent of average 116 120
WIND RIVER
BURROUGHS CREEK 8750 12.0 10.6 113 14.8 11.9 124
COLD SPRINGS 9630 4.8 6.2 77 7.7 7.4 104
DEER PARK 9700 10.1 12.3 82 14.5 15.6 93
HOBBS PARK 10100 9.0 10.2 88 9.7 8.6 113
LITTLE WARM 9370 7.3 8.1 90 10.5 9.6 109
SOUTH PASS 9040 9.2 11.9 77 12.0 13.1 92
ST. LAWRENCE ALT 8620 4.1 5.0 82 5.8 6.1 95
TOGWOTEE PASS 9580 20.1 18.0 112 21.9 17.9 122
TOWNSEND CREEK 8700 4.9 5.9 83 8.0 7.7 104
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Basin wide percent of average 92 107
BIGHORN BASIN
BALD MTN. 9380 11.2 14.0 80 11.2 12.4 90
BEAR TRAP MEADOW 8200 5.8 3.7 157 6.4 5.8 110
BLACKWATER 9780 18.3 17.4 105 17.2 15.0 115
BONE SPRINGS DIV 9350 11.2 11.1 101 13.0 10.1 129
EVENING STAR 9200 21.0 21.0 100 22.9 18.7 122
GRAVE SPRINGS 8550 5.7 6.1 93 7.0 6.7 104
KIRWIN 9550 9.2 8.0 115 10.8 8.0 135
MARQUETTE 8760 2.6 6.1 43 6.5 6.5 100
MIDDLE POWDER 7760 6.4 7.7 83 6.0 8.6 70
OWL CREEK 8975 3.7 3.5 106 5.2 3.9 133
POWDER RIVER PASS 9480 8.3 7.5 111 10.2 8.8 116
SHELL CREEK 9580 11.3 10.3 110 11.2 9.8 114
SYLVAN LAKE 8420 15.3 15.9 96 19.5 15.7 124
SYLVAN ROAD 7120 8.0 9.5 84 16.5 14.0 118
TIMBER CREEK 7950 2.1 3.7 57 5.7 4.7 121
YOUNTS PEAK 8350 12.9 12.6 102 -M 12.0 *
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Basin wide percent of average 97 114
SHOSHONE RIVER
BLACKWATER 9780 18.3 17.4 105 17.2 15.0 115
EVENING STAR 9200 21.0 21.0 100 22.9 18.7 122
KIRWIN 9550 9.2 8.0 115 10.8 8.0 135
MARQUETTE 8760 2.6 6.1 43 6.5 6.5 100
SYLVAN LAKE 8420 15.3 15.9 96 19.5 15.7 124
SYLVAN ROAD 7120 8.0 9.5 84 16.5 14.0 118
YOUNTS PEAK 8350 12.9 12.6 102 -M 12.0 *
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Basin wide percent of average 96 120
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.8 3.7 157 6.4 5.8 110
BIG GOOSE 7990 5.4 6.4 84 8.3 6.0 138
BONE SPRINGS DIV 9350 11.2 11.1 101 13.0 10.1 129
BURGESS JUNCTION 7880 7.4 7.7 96 9.2 8.3 111
CLOUD PEAK RESERVOIR 9860 9.8 8.5 115 10.5 8.6 122
DOME LAKE 8880 7.0 8.4 83 10.3 9.1 113
GRAVE SPRINGS 8550 5.7 6.1 93 7.0 6.7 104
HANSEN SAWMILL 8360 4.6 4.4 105 6.7 5.6 120
MIDDLE POWDER 7760 6.4 7.7 83 6.0 8.6 70
POWDER RIVER PASS 9480 8.3 7.5 111 10.2 8.8 116
SUCKER CREEK 8880 8.7 7.7 113 10.6 9.2 115
TIE CREEK 6870 4.0 4.2 95 8.0 7.1 113
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Basin wide percent of average 101 113
BELLE FOURCHE
BLIND PARK 6890 4.1 5.7 72 6.5 8.2 79
COLE CANYON 5910 3.7 4.8 77 4.8 4.9 98
NORTH RAPID CREEK 6130 4.7 5.5 85 5.1 6.6 77
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Basin wide percent of average 78 83
UPPER N. PLATTE RIVER
COLUMBINE 9160 18.7 18.1 103 20.9 17.8 117
DIVIDE PEAK 8880 17.5 13.7 128 17.8 14.6 122
ELK RIVER 8700 18.0 13.4 134 17.8 13.6 131
JOE WRIGHT 10120 16.6 14.9 111 19.2 17.2 112
NORTH FRENCH CREEK 10130 21.8 19.5 112 21.5 17.4 124
OLD BATTLE 10000 24.5 21.7 113 28.8 24.0 120
SAGE CREEK BASIN 7850 13.4 7.9 170 14.9 8.4 177
SOUTH BRUSH CREEK 8440 8.7 8.0 109 12.3 11.6 106
TOWER 10500 31.7 32.3 98 29.8 27.2 110
WEBBER SPRINGS 9250 18.8 17.4 108 22.2 19.1 116
WILLOW CREEK PASS 9540 11.7 8.1 144 11.9 8.9 134
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Basin wide percent of average 115 121
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 14.9 16.4 91 15.6 15.1 103
CASPER MTN. 7900 7.4 9.6 77 9.8 9.5 103
DEADMAN HILL 10220 12.0 11.2 107 12.3 11.3 109
DEER PARK 9700 10.1 12.3 82 14.5 15.6 93
LAPRELE CREEK 8375 -M 7.7 * -M 8.6 *
RENO HILL 8400 7.7 8.9 87 9.5 9.9 96
ROACH 9700 14.0 11.9 118 16.5 12.4 133
SAND LAKE 10050 19.3 21.2 91 19.4 16.8 115
SOUTH PASS 9040 9.2 11.9 77 12.0 13.1 92
WINDY PEAK 7900 5.1 5.0 102 6.7 7.3 92
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Basin wide percent of average 92 105
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 12.2 8.4 145 13.5 10.5 129
DIVIDE PEAK 8880 17.5 13.7 128 17.8 14.6 122
OLD BATTLE 10000 24.5 21.7 113 28.8 24.0 120
SANDSTONE RS 8150 13.6 10.5 130 16.9 13.4 126
WHISKEY PARK 8950 23.1 20.1 115 25.5 20.5 124
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Basin wide percent of average 122 123
UPPER GREEN RIVER
BIG SANDY OPENING 9080 9.9 10.2 97 10.2 9.6 106
BLIND BULL SUM 8650 17.7 19.6 90 14.1 16.4 86
EAST RIM DIVIDE 7930 6.5 9.2 71 8.7 8.6 101
ELKHART PARK G.S. 9400 8.6 9.4 91 9.4 9.4 100
GROS VENTRE SUMMIT 8750 10.3 10.0 103 11.4 9.2 124
GUNSIGHT PASS 9820 9.7 -M * 11.0 -M *
KENDALL R.S. 7740 8.7 10.5 83 10.5 10.5 100
LOOMIS PARK 8240 11.8 12.1 98 13.4 12.6 106
NEW FORK LAKE 8340 7.1 8.2 87 7.4 8.3 89
SNIDER BASIN 8060 9.2 10.5 88 10.3 11.8 87
SPRING CREEK DIVIDE 9000 16.4 18.7 88 16.6 19.4 86
TRIPLE PEAK 8500 16.7 17.8 94 19.9 17.3 115
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Basin wide percent of average 90 99
LOWER GREEN RIVER
HAMS FORK 7840 8.7 9.1 96 7.7 8.9 87
HEWINTA 9519 8.3 7.3 114 12.9 9.9 130
HICKERSON PARK 9145 4.2 4.8 88 6.9 5.5 125
HOLE-IN-ROCK 9150 3.8 4.6 83 7.0 5.0 140
INDIAN CREEK 9425 16.7 18.8 89 13.2 17.9 74
KELLEY R.S. 8180 -M 11.5 * -M 14.8 *
STEEL CREEK PARK 10200 10.2 10.3 99 13.9 10.9 128
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Basin wide percent of average 95 106
UPPER BEAR RIVER
BUG LAKE 7950 12.9 14.3 90 12.7 13.8 92
HAYDEN FORK 9212 14.0 10.7 131 17.9 14.5 123
KELLEY R.S. 8180 -M 11.5 * -M 14.8 *
LILY LAKE 9156 10.7 8.9 120 13.3 12.2 109
MONTE CRISTO 8960 21.2 20.0 106 19.8 17.9 111
SALT RIVER SUMMIT 7760 9.7 10.1 96 11.8 13.5 87
TRIAL LAKE 9992 15.3 17.0 90 18.7 17.0 110
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Basin wide percent of average 103 106
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-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.
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-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.