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 16 , 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 14.4 14.5 99 21.1 16.8 126
COTTONWOOD CREEK 7670 18.2 16.2 112 20.1 20.8 97
GRAND TARGHEE 9260 37.4 -M * 25.5 -M *
GRANITE CREEK 6770 13.7 14.3 96 19.1 15.6 122
GRASSY LAKE 7265 24.3 26.4 92 32.1 28.1 114
GROS VENTRE SUMMIT 8750 10.8 10.4 104 11.9 9.7 123
GUNSIGHT PASS 9820 10.2 -M * 11.7 -M *
LEWIS LAKE DIVIDE 7850 24.9 26.6 94 29.6 28.2 105
PHILLIPS BENCH 8200 23.9 21.3 112 27.1 22.1 123
SALT RIVER SUMMIT 7760 10.4 10.9 95 12.5 14.2 88
SNAKE RIVER STATION 6920 13.3 14.7 90 21.5 17.6 122
SPRING CREEK DIVIDE 9000 17.8 19.8 90 18.2 20.4 89
THUMB DIVIDE 7980 12.9 13.6 95 15.6 14.3 109
TOGWOTEE PASS 9580 21.3 18.9 113 23.3 18.8 124
TWO OCEAN PLATEAU 9240 28.2 21.3 132 22.9 20.9 110
WILLOW CREEK 8380 23.7 22.9 103 29.2 24.4 120
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Basin wide percent of average 102 112
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 20.5 18.3 112 19.1 15.6 122
BLACK BEAR 8170 36.8 29.5 125 33.4 29.7 112
CANYON 7870 13.7 10.2 134 17.0 11.9 143
FISHER CREEK 9100 34.1 26.9 127 -M 27.6 *
MADISON PLATEAU 7750 23.8 18.7 127 26.4 19.8 133
NORTHEAST ENTRANCE 7350 7.3 8.9 82 10.7 9.9 108
PARKER PEAK 9400 19.9 16.6 120 -M 12.4 *
SYLVAN LAKE 8420 16.1 17.0 95 20.7 16.4 126
THUMB DIVIDE 7980 12.9 13.6 95 15.6 14.3 109
TWO OCEAN PLATEAU 9240 28.2 21.3 132 22.9 20.9 110
WHISKEY CREEK 6800 15.1 12.8 118 21.0 15.6 135
WHITE MILL 8700 21.6 18.3 118 -M 20.5 *
WOLVERINE 7650 8.2 9.7 85 10.8 10.2 106
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Basin wide percent of average 116 120
WIND RIVER
BURROUGHS CREEK 8750 12.8 11.4 112 15.6 12.5 125
COLD SPRINGS 9630 5.4 6.5 83 8.3 7.7 108
DEER PARK 9700 10.8 13.8 78 15.3 16.3 94
HOBBS PARK 10100 9.8 10.8 91 10.5 9.0 117
LITTLE WARM 9370 7.7 8.6 90 11.1 10.0 111
SOUTH PASS 9040 10.1 12.6 80 12.8 13.7 93
ST. LAWRENCE ALT 8620 4.8 5.3 91 6.4 6.4 100
TOGWOTEE PASS 9580 21.3 18.9 113 23.3 18.8 124
TOWNSEND CREEK 8700 5.7 6.3 90 8.8 8.1 109
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Basin wide percent of average 94 109
BIGHORN BASIN
BALD MTN. 9380 12.1 14.6 83 12.1 12.9 94
BEAR TRAP MEADOW 8200 6.1 3.9 156 6.7 6.0 112
BLACKWATER 9780 19.6 18.5 106 18.4 15.7 117
BONE SPRINGS DIV 9350 12.2 11.8 103 13.8 10.6 130
EVENING STAR 9200 23.5 22.6 104 -M 19.8 *
GRAVE SPRINGS 8550 6.4 6.5 98 7.4 7.0 106
KIRWIN 9550 9.7 8.4 115 11.8 8.4 140
MARQUETTE 8760 3.0 6.3 48 6.9 6.8 101
MIDDLE POWDER 7760 7.0 8.1 86 6.3 8.9 71
OWL CREEK 8975 4.1 3.7 111 5.4 4.1 132
POWDER RIVER PASS 9480 8.9 7.9 113 10.9 9.2 118
SHELL CREEK 9580 12.2 10.8 113 12.0 10.1 119
SYLVAN LAKE 8420 16.1 17.0 95 20.7 16.4 126
SYLVAN ROAD 7120 8.7 10.3 84 17.3 14.6 118
TIMBER CREEK 7950 2.4 3.9 62 5.8 4.9 118
YOUNTS PEAK 8350 13.7 13.3 103 15.1 12.5 121
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Basin wide percent of average 99 115
SHOSHONE RIVER
BLACKWATER 9780 19.6 18.5 106 18.4 15.7 117
EVENING STAR 9200 23.5 22.6 104 -M 19.8 *
KIRWIN 9550 9.7 8.4 115 11.8 8.4 140
MARQUETTE 8760 3.0 6.3 48 6.9 6.8 101
SYLVAN LAKE 8420 16.1 17.0 95 20.7 16.4 126
SYLVAN ROAD 7120 8.7 10.3 84 17.3 14.6 118
YOUNTS PEAK 8350 13.7 13.3 103 15.1 12.5 121
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Basin wide percent of average 98 121
POWDER-TONGUE
BEAR TRAP MEADOW 8200 6.1 3.9 156 6.7 6.0 112
BIG GOOSE 7990 5.9 6.8 87 8.8 6.2 142
BONE SPRINGS DIV 9350 12.2 11.8 103 13.8 10.6 130
BURGESS JUNCTION 7880 8.1 8.1 100 10.0 8.7 115
CLOUD PEAK RESERVOIR 9860 11.0 9.0 122 11.4 9.0 127
DOME LAKE 8880 7.8 8.8 89 11.1 9.5 117
GRAVE SPRINGS 8550 6.4 6.5 98 7.4 7.0 106
HANSEN SAWMILL 8360 5.0 4.6 109 7.2 5.8 124
MIDDLE POWDER 7760 7.0 8.1 86 6.3 8.9 71
POWDER RIVER PASS 9480 8.9 7.9 113 10.9 9.2 118
SUCKER CREEK 8880 9.4 8.1 116 11.4 9.6 119
TIE CREEK 6870 4.5 4.5 100 8.3 7.3 114
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Basin wide percent of average 105 116
BELLE FOURCHE
BLIND PARK 6890 5.1 6.0 85 7.9 8.5 93
COLE CANYON 5910 4.7 5.2 90 5.7 5.1 112
NORTH RAPID CREEK 6130 6.0 6.0 100 6.2 6.9 90
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Basin wide percent of average 92 97
UPPER N. PLATTE RIVER
COLUMBINE 9160 19.9 19.5 102 22.1 18.8 118
DIVIDE PEAK 8880 18.9 14.2 133 19.1 15.3 125
ELK RIVER 8700 19.9 14.3 139 19.3 14.4 134
JOE WRIGHT 10120 18.0 15.7 115 21.3 18.2 117
NORTH FRENCH CREEK 10130 22.9 20.5 112 22.6 18.3 123
OLD BATTLE 10000 26.3 23.2 113 31.0 25.3 123
SAGE CREEK BASIN 7850 14.4 8.2 176 15.3 8.9 172
SOUTH BRUSH CREEK 8440 9.1 8.6 106 12.7 12.2 104
TOWER 10500 34.1 34.1 100 30.3 28.7 106
WEBBER SPRINGS 9250 20.6 18.6 111 24.0 20.0 120
WILLOW CREEK PASS 9540 12.3 8.6 143 12.7 9.3 137
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Basin wide percent of average 117 122
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 16.4 17.2 95 17.1 15.8 108
CASPER MTN. 7900 8.5 10.2 83 10.4 10.0 104
DEADMAN HILL 10220 13.0 11.8 110 13.4 11.9 113
DEER PARK 9700 10.8 13.8 78 15.3 16.3 94
LAPRELE CREEK 8375 -M 8.1 * -M 9.0 *
RENO HILL 8400 8.5 9.3 91 10.3 10.3 100
ROACH 9700 15.3 12.6 121 17.9 13.1 137
SAND LAKE 10050 20.7 22.4 92 20.8 17.5 119
SOUTH PASS 9040 10.1 12.6 80 12.8 13.7 93
WINDY PEAK 7900 6.0 5.3 113 7.5 7.7 97
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Basin wide percent of average 95 108
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 12.4 8.7 143 13.7 11.1 123
DIVIDE PEAK 8880 18.9 14.2 133 19.1 15.3 125
OLD BATTLE 10000 26.3 23.2 113 31.0 25.3 123
SANDSTONE RS 8150 14.1 11.1 127 17.5 14.1 124
WHISKEY PARK 8950 24.7 21.2 117 28.2 21.4 132
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Basin wide percent of average 123 126
UPPER GREEN RIVER
BIG SANDY OPENING 9080 10.3 10.9 94 10.4 10.2 102
BLIND BULL SUM 8650 19.2 20.7 93 14.8 17.2 86
EAST RIM DIVIDE 7930 6.9 9.8 70 9.1 9.1 100
ELKHART PARK G.S. 9400 9.1 10.0 91 10.0 9.9 101
GROS VENTRE SUMMIT 8750 10.8 10.4 104 11.9 9.7 123
GUNSIGHT PASS 9820 10.2 -M * 11.7 -M *
KENDALL R.S. 7740 9.4 11.1 85 11.2 11.1 101
LOOMIS PARK 8240 12.5 12.9 97 14.3 13.3 108
NEW FORK LAKE 8340 7.8 8.7 90 8.0 8.7 92
SNIDER BASIN 8060 10.1 11.2 90 11.2 12.4 90
SPRING CREEK DIVIDE 9000 17.8 19.8 90 18.2 20.4 89
TRIPLE PEAK 8500 18.2 18.8 97 21.4 18.4 116
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Basin wide percent of average 92 100
LOWER GREEN RIVER
HAMS FORK 7840 9.1 9.7 94 7.9 9.4 84
HEWINTA 9519 9.4 7.9 119 13.3 10.4 128
HICKERSON PARK 9145 5.3 5.2 102 7.5 5.7 132
HOLE-IN-ROCK 9150 4.6 5.0 92 7.9 5.3 149
INDIAN CREEK 9425 17.8 19.9 89 13.4 19.0 71
KELLEY R.S. 8180 -M 12.3 * -M 15.6 *
STEEL CREEK PARK 10200 10.8 11.0 98 14.5 11.5 126
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Basin wide percent of average 97 105
UPPER BEAR RIVER
BUG LAKE 7950 14.0 15.2 92 13.7 14.5 94
HAYDEN FORK 9212 14.3 11.5 124 18.4 15.3 120
KELLEY R.S. 8180 -M 12.3 * -M 15.6 *
LILY LAKE 9156 11.2 9.6 117 14.5 12.8 113
MONTE CRISTO 8960 22.3 21.6 103 21.5 18.9 114
SALT RIVER SUMMIT 7760 10.4 10.9 95 12.5 14.2 88
TRIAL LAKE 9992 16.0 18.2 88 19.1 18.1 106
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Basin wide percent of average 101 106
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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.