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 11 , 2012
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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 14.6 13.9 105 17.7 16.1 110
COTTONWOOD CREEK 7670 12.9 15.5 83 17.7 20.1 88
EAST RIM DIVIDE 7930 8.2 9.4 87 9.1 8.8 103
GRAND TARGHEE 9260 23.1 -M * 19.6 -M *
GRANITE CREEK 6770 11.0 13.7 80 12.0 15.0 80
GRASSY LAKE 7265 21.4 25.3 85 25.3 27.1 93
GROS VENTRE SUMMIT 8750 7.3 10.1 72 8.0 9.3 86
GUNSIGHT PASS 9820 8.7 -M * 9.7 -M *
LEWIS LAKE DIVIDE 7850 19.9 25.5 78 24.7 27.1 91
PHILLIPS BENCH 8200 16.6 20.4 81 18.4 21.3 86
SALT RIVER SUMMIT 7760 7.8 10.4 75 8.6 13.7 63
SNAKE RIVER STATION 6920 13.0 14.0 93 17.8 16.9 105
SPRING CREEK DIVIDE 9000 15.2 19.0 80 15.8 19.7 80
THUMB DIVIDE 7980 10.8 13.0 83 12.3 13.8 89
TOGWOTEE PASS 9580 14.8 18.3 81 16.7 18.1 92
TWO OCEAN PLATEAU 9240 24.0 20.5 117 20.2 20.1 100
WILLOW CREEK 8380 17.3 22.0 79 22.5 23.5 96
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Basin wide percent of average 86 91
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 16.9 17.5 97 16.5 15.0 110
BLACK BEAR 8170 23.4 27.8 84 24.7 28.5 87
CANYON 7870 8.5 9.7 88 10.1 11.5 88
FISHER CREEK 9100 23.4 25.6 91 23.1 26.6 87
MADISON PLATEAU 7750 13.9 17.6 79 17.7 19.1 93
NORTHEAST ENTRANCE 7350 6.4 8.4 76 -M 9.6 *
PARKER PEAK 9400 15.8 15.8 100 16.4 12.0 137
SYLVAN LAKE 8420 12.3 16.1 76 17.2 15.9 108
THUMB DIVIDE 7980 10.8 13.0 83 12.3 13.8 89
TWO OCEAN PLATEAU 9240 24.0 20.5 117 20.2 20.1 100
WHISKEY CREEK 6800 9.5 12.1 79 12.8 15.0 85
WHITE MILL 8700 14.6 17.3 84 15.9 19.8 80
WOLVERINE 7650 9.3 9.3 100 9.4 9.9 95
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Basin wide percent of average 90 95
WIND RIVER
BURROUGHS CREEK 8750 10.1 10.8 94 10.3 12.1 85
CASTLE CREEK 8400 5.6 -M * 6.5 -M *
COLD SPRINGS 9630 5.8 6.3 92 6.7 7.5 89
DEER PARK 9700 8.1 13.1 62 12.7 15.8 80
HOBBS PARK 10100 10.8 10.3 105 10.3 8.8 117
LITTLE WARM 9370 5.4 8.3 65 7.7 9.7 79
SOUTH PASS 9040 9.9 12.0 82 10.0 13.3 75
ST. LAWRENCE ALT 8620 4.2 5.1 82 6.0 6.2 97
TOGWOTEE PASS 9580 14.8 18.3 81 16.7 18.1 92
TOWNSEND CREEK 8700 6.4 6.0 107 9.0 7.8 115
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Basin wide percent of average 84 90
BIGHORN BASIN
BALD MTN. 9380 12.8 14.2 90 9.7 12.6 77
BEAR TRAP MEADOW 8200 4.7 3.8 124 5.7 5.8 98
BLACKWATER 9780 17.7 17.6 101 17.5 15.2 115
BONE SPRINGS DIV 9350 13.6 11.3 120 10.8 10.3 105
EVENING STAR 9200 19.8 21.5 92 21.6 19.0 114
GRAVE SPRINGS 8550 5.9 6.3 94 7.4 6.8 109
KIRWIN 9550 9.1 8.1 112 10.9 8.1 135
MARQUETTE 8760 6.5 -M * 10.1 6.6 153
MIDDLE POWDER 7760 7.4 7.9 94 8.2 8.7 94
OWL CREEK 8975 3.4 3.6 94 4.0 3.9 103
POWDER RIVER PASS 9480 6.9 7.7 90 8.6 8.9 97
SHELL CREEK 9580 11.2 10.5 107 9.6 9.9 97
SYLVAN LAKE 8420 12.3 16.1 76 17.2 15.9 108
SYLVAN ROAD 7120 9.4 9.6 98 12.8 14.2 90
TIMBER CREEK 7950 4.0 3.9 103 7.6 4.8 158
YOUNTS PEAK 8350 11.9 12.8 93 11.7 12.1 97
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Basin wide percent of average 97 107
SHOSHONE RIVER
BLACKWATER 9780 17.7 17.6 101 17.5 15.2 115
EVENING STAR 9200 19.8 21.5 92 21.6 19.0 114
KIRWIN 9550 9.1 8.1 112 10.9 8.1 135
MARQUETTE 8760 6.5 -M * 10.1 6.6 153
SYLVAN LAKE 8420 12.3 16.1 76 17.2 15.9 108
SYLVAN ROAD 7120 9.4 9.6 98 12.8 14.2 90
YOUNTS PEAK 8350 11.9 12.8 93 11.7 12.1 97
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Basin wide percent of average 94 112
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.7 3.8 124 5.7 5.8 98
BIG GOOSE 7990 7.5 6.5 115 11.2 6.1 184
BONE SPRINGS DIV 9350 13.6 11.3 120 10.8 10.3 105
BURGESS JUNCTION 7880 8.9 7.9 113 11.1 8.4 132
CLOUD PEAK RESERVOIR 9860 11.9 8.6 138 11.1 8.7 128
DOME LAKE 8880 10.5 8.6 122 11.5 9.2 125
GRAVE SPRINGS 8550 5.9 6.3 94 7.4 6.8 109
HANSEN SAWMILL 8360 4.0 4.5 89 6.1 5.6 109
LITTLE GOOSE 8870 8.3 -M * 12.8 -M *
MIDDLE POWDER 7760 7.4 7.9 94 8.2 8.7 94
POWDER RIVER PASS 9480 6.9 7.7 90 8.6 8.9 97
SOLDIER PARK 8720 9.2 -M * 7.5 -M *
SUCKER CREEK 8880 10.9 7.8 140 11.3 9.4 120
TIE CREEK 6870 5.2 4.3 121 11.1 7.1 156
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Basin wide percent of average 114 120
BELLE FOURCHE
BLIND PARK 6890 5.0 5.7 88 5.9 8.3 71
COLE CANYON 5910 3.4 4.9 69 5.7 5.0 114
NORTH RAPID CREEK 6130 5.2 5.6 93 4.6 6.7 69
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Basin wide percent of average 84 81
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 15.3 -M * 16.8 -M *
CINNABAR PARK 9574 11.9 14.3 83 15.5 15.4 101
COLUMBINE 9160 12.4 18.5 67 13.8 18.0 77
DIVIDE PEAK 8880 9.9 13.8 72 13.7 14.8 93
ELK RIVER 8700 9.2 13.7 67 10.4 13.8 75
JOE WRIGHT 10120 11.2 15.1 74 14.5 17.5 83
NORTH FRENCH CREEK 10130 14.5 19.8 73 14.8 17.6 84
OLD BATTLE 10000 15.3 22.1 69 18.8 24.4 77
SAGE CREEK BASIN 7850 11.0 8.0 138 7.5 8.6 87
SOUTH BRUSH CREEK 8440 5.5 8.2 67 8.5 11.7 73
TOWER 10500 19.2 32.8 59 21.2 27.6 77
WEBBER SPRINGS 9250 11.9 17.7 67 15.6 19.4 80
WILLOW CREEK PASS 9540 -M 8.2 * 6.9 9.0 77
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Basin wide percent of average 72 81
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 11.8 16.6 71 13.3 15.3 87
CASPER MTN. 7900 15.0 9.8 153 15.1 9.6 157
DEADMAN HILL 10220 12.9 11.4 113 12.0 11.5 104
DEER PARK 9700 8.1 13.1 62 12.7 15.8 80
LAPRELE CREEK 8375 7.1 7.8 91 9.6 8.7 110
RENO HILL 8400 12.2 9.0 136 13.6 10.0 136
ROACH 9700 10.2 12.1 84 13.0 12.6 103
SAND LAKE 10050 17.5 21.6 81 17.6 17.0 104
SOUTH PASS 9040 9.9 12.0 82 10.0 13.3 75
WINDY PEAK 7900 5.6 5.1 110 7.4 7.4 100
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Basin wide percent of average 93 103
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.6 8.5 78 8.1 10.7 76
DIVIDE PEAK 8880 9.9 13.8 72 13.7 14.8 93
OLD BATTLE 10000 15.3 22.1 69 18.8 24.4 77
SANDSTONE RS 8150 6.1 10.7 57 8.0 13.6 59
WHISKEY PARK 8950 12.9 20.4 63 16.8 20.8 81
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Basin wide percent of average 67 78
UPPER GREEN RIVER
BIG SANDY OPENING 9080 9.1 10.4 88 9.5 9.8 97
BLIND BULL SUM 8650 15.5 20.0 78 13.0 16.6 78
EAST RIM DIVIDE 7930 8.2 9.4 87 9.1 8.8 103
ELKHART PARK G.S. 9400 8.8 9.6 92 10.3 9.5 108
GROS VENTRE SUMMIT 8750 7.3 10.1 72 8.0 9.3 86
GUNSIGHT PASS 9820 8.7 -M * 9.7 -M *
KENDALL R.S. 7740 10.7 10.7 100 11.8 10.7 110
LOOMIS PARK 8240 10.0 12.3 81 12.2 12.8 95
NEW FORK LAKE 8340 8.4 8.3 101 8.1 8.4 96
POCKET CREEK 9360 6.9 -M * 9.5 -M *
SNIDER BASIN 8060 8.6 10.7 80 9.1 12.0 76
SPRING CREEK DIVIDE 9000 15.2 19.0 80 15.8 19.7 80
TRIPLE PEAK 8500 15.3 18.1 85 17.9 17.6 102
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Basin wide percent of average 84 92
LOWER GREEN RIVER
HAMS FORK 7840 7.4 9.2 80 7.7 9.1 85
HEWINTA 9519 5.8 7.5 77 8.8 10.0 88
HICKERSON PARK 9145 6.7 4.9 137 9.5 5.5 173
HOLE-IN-ROCK 9150 5.9 4.7 126 8.7 5.1 171
INDIAN CREEK 9425 14.4 19.1 75 13.3 18.2 73
KELLEY R.S. 8180 10.1 11.8 86 12.2 15.0 81
STEEL CREEK PARK 10200 -M 10.5 * 9.8 11.1 88
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Basin wide percent of average 88 95
UPPER BEAR RIVER
BUG LAKE 7950 9.4 14.6 64 11.3 14.0 81
HAYDEN FORK 9212 6.9 10.9 63 12.0 14.7 82
KELLEY R.S. 8180 10.1 11.8 86 12.2 15.0 81
LILY LAKE 9156 5.8 9.1 64 8.3 12.4 67
MONTE CRISTO 8960 12.1 20.5 59 13.3 18.2 73
SALT RIVER SUMMIT 7760 7.8 10.4 75 8.6 13.7 63
TRIAL LAKE 9992 8.8 17.4 51 9.3 17.3 54
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Basin wide percent of average 64 71
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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 1971-2000.
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.