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 THURSDAY: JANUARY 10 , 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 9.0 9.5 95 15.4 11.8 131
COTTONWOOD CREEK 7670 9.6 11.1 86 12.7 15.3 83
GRAND TARGHEE 9260 25.0 -M * 18.6 -M *
GRANITE CREEK 6770 7.4 9.0 82 13.1 10.8 121
GRASSY LAKE 7265 14.4 17.1 84 22.5 19.9 113
GROS VENTRE SUMMIT 8750 7.4 7.7 96 8.6 7.1 121
GUNSIGHT PASS 9820 4.8 -M * 8.5 -M *
LEWIS LAKE DIVIDE 7850 15.9 17.1 93 22.0 19.9 111
PHILLIPS BENCH 8200 13.4 14.4 93 17.5 15.4 114
SALT RIVER SUMMIT 7760 4.6 6.4 72 6.9 10.2 68
SNAKE RIVER STATION 6920 7.6 9.1 84 15.5 12.4 125
SPRING CREEK DIVIDE 9000 9.7 13.9 70 10.6 14.8 72
THUMB DIVIDE 7980 7.9 8.8 90 11.4 10.3 111
TOGWOTEE PASS 9580 14.7 13.2 111 16.5 13.5 122
TWO OCEAN PLATEAU 9240 20.1 15.1 133 18.2 15.0 121
WILLOW CREEK 8380 12.7 16.1 79 18.4 17.5 105
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Basin wide percent of average 92 108
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 13.9 13.0 107 13.3 11.2 119
BLACK BEAR 8170 23.7 19.8 120 24.6 20.2 122
CANYON 7870 8.5 7.1 120 11.7 8.7 134
FISHER CREEK 9100 23.0 18.7 123 21.1 19.5 108
MADISON PLATEAU 7750 14.5 12.8 113 18.4 13.9 132
NORTHEAST ENTRANCE 7350 3.5 5.8 60 7.7 7.2 107
PARKER PEAK 9400 13.5 11.9 113 13.5 9.1 148
SYLVAN LAKE 8420 10.5 11.9 88 15.1 12.1 125
THUMB DIVIDE 7980 7.9 8.8 90 11.4 10.3 111
TWO OCEAN PLATEAU 9240 20.1 15.1 133 18.2 15.0 121
WHISKEY CREEK 6800 8.8 8.6 102 14.7 11.1 132
WHITE MILL 8700 14.3 12.7 113 14.7 14.4 102
WOLVERINE 7650 4.2 6.6 64 7.9 7.7 103
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Basin wide percent of average 109 120
WIND RIVER
BURROUGHS CREEK 8750 8.8 7.8 113 11.5 9.1 126
COLD SPRINGS 9630 2.8 5.0 56 5.7 6.1 93
DEER PARK 9700 7.3 7.5 97 10.9 12.0 91
HOBBS PARK 10100 6.2 8.2 76 7.4 6.9 107
LITTLE WARM 9370 5.0 6.1 82 7.7 7.5 103
SOUTH PASS 9040 6.3 9.0 70 9.2 10.0 92
ST. LAWRENCE ALT 8620 2.7 4.0 68 4.6 4.9 94
TOGWOTEE PASS 9580 14.7 13.2 111 16.5 13.5 122
TOWNSEND CREEK 8700 3.2 4.7 68 6.5 6.4 102
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Basin wide percent of average 87 105
BIGHORN BASIN
BALD MTN. 9380 7.5 10.9 69 8.1 9.5 85
BEAR TRAP MEADOW 8200 4.6 2.8 164 5.7 4.8 119
BLACKWATER 9780 13.3 13.3 100 12.7 11.8 108
BONE SPRINGS DIV 9350 7.7 8.7 89 -M 8.0 *
EVENING STAR 9200 15.2 15.7 97 17.8 14.5 123
GRAVE SPRINGS 8550 4.0 4.7 85 5.5 5.4 102
KIRWIN 9550 7.3 6.4 114 8.9 6.4 139
MARQUETTE 8760 1.7 5.2 33 5.9 5.6 105
MIDDLE POWDER 7760 4.8 6.1 79 5.2 7.2 72
OWL CREEK 8975 2.7 2.8 96 4.5 3.1 145
POWDER RIVER PASS 9480 5.9 5.9 100 7.8 6.7 116
SHELL CREEK 9580 8.3 8.2 101 8.7 7.4 118
SYLVAN LAKE 8420 10.5 11.9 88 15.1 12.1 125
SYLVAN ROAD 7120 5.0 7.0 71 13.0 11.1 117
TIMBER CREEK 7950 1.6 3.2 50 5.4 3.9 138
YOUNTS PEAK 8350 8.7 9.1 96 10.9 9.3 117
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Basin wide percent of average 89 114
SHOSHONE RIVER
BLACKWATER 9780 13.3 13.3 100 12.7 11.8 108
EVENING STAR 9200 15.2 15.7 97 17.8 14.5 123
KIRWIN 9550 7.3 6.4 114 8.9 6.4 139
MARQUETTE 8760 1.7 5.2 33 5.9 5.6 105
SYLVAN LAKE 8420 10.5 11.9 88 15.1 12.1 125
SYLVAN ROAD 7120 5.0 7.0 71 13.0 11.1 117
YOUNTS PEAK 8350 8.7 9.1 96 10.9 9.3 117
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Basin wide percent of average 90 119
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.6 2.8 164 5.7 4.8 119
BIG GOOSE 7990 4.2 4.9 86 7.1 4.8 148
BONE SPRINGS DIV 9350 7.7 8.7 89 -M 8.0 *
BURGESS JUNCTION 7880 5.0 6.0 83 7.3 6.6 111
CLOUD PEAK RESERVOIR 9860 6.8 6.4 106 8.3 6.9 120
DOME LAKE 8880 5.1 6.6 77 8.5 7.4 115
GRAVE SPRINGS 8550 4.0 4.7 85 5.5 5.4 102
HANSEN SAWMILL 8360 3.5 3.5 100 5.6 4.6 122
MIDDLE POWDER 7760 4.8 6.1 79 5.2 7.2 72
POWDER RIVER PASS 9480 5.9 5.9 100 7.8 6.7 116
SUCKER CREEK 8880 5.6 5.7 98 7.4 7.3 101
TIE CREEK 6870 2.1 3.1 68 6.1 5.6 109
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Basin wide percent of average 92 111
BELLE FOURCHE
BLIND PARK 6890 2.3 4.2 55 4.5 6.7 67
COLE CANYON 5910 1.8 3.6 50 3.2 4.2 76
NORTH RAPID CREEK 6130 2.9 3.8 76 3.6 5.6 64
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Basin wide percent of average 60 68
UPPER N. PLATTE RIVER
COLUMBINE 9160 10.2 11.8 86 13.3 13.1 102
DIVIDE PEAK 8880 11.6 10.4 112 12.2 11.2 109
ELK RIVER 8700 10.0 8.7 115 11.9 10.1 118
JOE WRIGHT 10120 11.6 10.9 106 14.0 13.2 106
NORTH FRENCH CREEK 10130 14.2 14.9 95 15.0 13.4 112
OLD BATTLE 10000 15.4 16.1 96 18.9 18.0 105
SAGE CREEK BASIN 7850 8.6 6.0 143 10.0 6.5 154
SOUTH BRUSH CREEK 8440 6.5 5.8 112 9.9 8.7 114
TOWER 10500 17.8 23.3 76 20.0 20.2 99
WEBBER SPRINGS 9250 11.7 12.8 91 14.8 14.6 101
WILLOW CREEK PASS 9540 8.7 6.1 143 9.4 7.0 134
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Basin wide percent of average 100 110
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 10.0 12.2 82 11.1 11.4 97
CASPER MTN. 7900 5.2 7.5 69 7.9 7.7 103
DEADMAN HILL 10220 8.9 8.5 105 9.1 8.7 105
DEER PARK 9700 7.3 7.5 97 10.9 12.0 91
LAPRELE CREEK 8375 2.4 5.9 41 5.2 6.8 76
RENO HILL 8400 5.5 7.1 77 7.5 7.8 96
ROACH 9700 10.1 8.4 120 12.2 9.5 128
SAND LAKE 10050 13.2 16.4 80 13.7 12.9 106
SOUTH PASS 9040 6.3 9.0 70 9.2 10.0 92
WINDY PEAK 7900 3.1 3.7 84 5.0 6.0 83
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Basin wide percent of average 84 99
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 7.0 5.2 135 9.4 8.0 118
DIVIDE PEAK 8880 11.6 10.4 112 12.2 11.2 109
OLD BATTLE 10000 15.4 16.1 96 18.9 18.0 105
SANDSTONE RS 8150 7.4 6.5 114 11.1 10.0 111
WHISKEY PARK 8950 13.1 13.1 100 17.1 15.2 113
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Basin wide percent of average 106 110
UPPER GREEN RIVER
BIG SANDY OPENING 9080 6.4 7.7 83 7.0 7.3 96
BLIND BULL SUM 8650 10.7 14.8 72 9.6 12.5 77
EAST RIM DIVIDE 7930 3.1 6.7 46 5.7 6.5 88
ELKHART PARK G.S. 9400 5.0 7.0 71 6.3 7.4 85
GROS VENTRE SUMMIT 8750 7.4 7.7 96 8.6 7.1 121
GUNSIGHT PASS 9820 4.8 -M * 8.5 -M *
KENDALL R.S. 7740 4.7 7.6 62 6.9 7.8 88
LOOMIS PARK 8240 6.8 9.0 76 8.5 9.5 89
NEW FORK LAKE 8340 4.0 6.1 66 4.8 6.6 73
SNIDER BASIN 8060 4.6 7.7 60 6.2 9.0 69
SPRING CREEK DIVIDE 9000 9.7 13.9 70 10.6 14.8 72
TRIPLE PEAK 8500 9.9 13.3 74 13.0 12.8 102
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Basin wide percent of average 71 86
LOWER GREEN RIVER
HAMS FORK 7840 4.1 6.3 65 4.9 6.6 74
HEWINTA 9519 4.5 4.8 94 9.1 7.6 120
HICKERSON PARK 9145 2.2 3.3 67 4.9 4.5 109
HOLE-IN-ROCK 9150 1.9 3.1 61 5.5 4.1 134
INDIAN CREEK 9425 9.8 14.0 70 9.6 13.7 70
KELLEY R.S. 8180 6.2 8.5 73 8.7 11.4 76
STEEL CREEK PARK 10200 5.9 7.4 80 10.0 8.3 120
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Basin wide percent of average 73 94
UPPER BEAR RIVER
BUG LAKE 7950 7.2 9.7 74 8.3 10.3 81
HAYDEN FORK 9212 8.1 7.3 111 11.5 11.1 104
KELLEY R.S. 8180 6.2 8.5 73 8.7 11.4 76
LILY LAKE 9156 5.8 6.2 94 8.9 9.5 94
MONTE CRISTO 8960 12.8 13.1 98 13.7 13.5 101
SALT RIVER SUMMIT 7760 4.6 6.4 72 6.9 10.2 68
TRIAL LAKE 9992 8.4 12.0 70 11.7 12.7 92
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Basin wide percent of average 84 89
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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.