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 FRIDAY: JANUARY 4 , 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 7.4 8.7 85 13.9 10.9 128
COTTONWOOD CREEK 7670 7.9 10.2 77 11.2 14.1 79
GRAND TARGHEE 9260 21.8 -M * 16.9 -M *
GRANITE CREEK 6770 5.4 8.1 67 11.1 10.0 111
GRASSY LAKE 7265 12.1 15.5 78 20.2 18.2 111
GROS VENTRE SUMMIT 8750 6.7 7.2 93 8.1 6.6 123
GUNSIGHT PASS 9820 4.3 -M * 7.8 -M *
LEWIS LAKE DIVIDE 7850 13.8 15.5 89 19.8 18.3 108
PHILLIPS BENCH 8200 10.5 13.2 80 14.8 14.1 105
SALT RIVER SUMMIT 7760 3.6 5.7 63 6.0 9.4 64
SNAKE RIVER STATION 6920 6.1 8.3 73 14.0 11.5 122
SPRING CREEK DIVIDE 9000 8.0 13.0 62 9.2 13.7 67
THUMB DIVIDE 7980 6.1 8.0 76 9.9 9.5 104
TOGWOTEE PASS 9580 13.4 12.2 110 15.2 12.5 122
TWO OCEAN PLATEAU 9240 18.4 14.0 131 16.9 14.0 121
WILLOW CREEK 8380 10.4 14.9 70 16.3 16.2 101
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Basin wide percent of average 84 104
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 13.4 11.9 113 12.9 10.4 124
BLACK BEAR 8170 19.9 18.1 110 21.5 18.4 117
CANYON 7870 7.2 6.4 112 10.4 8.1 128
FISHER CREEK 9100 21.5 17.0 126 19.8 17.9 111
MADISON PLATEAU 7750 11.7 11.7 100 15.6 12.9 121
NORTHEAST ENTRANCE 7350 3.1 5.2 60 7.2 6.7 107
PARKER PEAK 9400 13.0 11.0 118 -M 8.5 *
SYLVAN LAKE 8420 9.6 11.0 87 14.0 11.4 123
THUMB DIVIDE 7980 6.1 8.0 76 9.9 9.5 104
TWO OCEAN PLATEAU 9240 18.4 14.0 131 16.9 14.0 121
WHISKEY CREEK 6800 6.8 7.9 86 12.6 10.3 122
WHITE MILL 8700 13.3 11.6 115 14.1 13.4 105
WOLVERINE 7650 4.2 6.0 70 7.9 7.2 110
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Basin wide percent of average 106 116
WIND RIVER
BURROUGHS CREEK 8750 8.5 7.0 121 11.2 8.4 133
COLD SPRINGS 9630 2.4 4.7 51 5.1 5.8 88
DEER PARK 9700 5.5 7.1 77 8.9 11.3 79
HOBBS PARK 10100 5.2 7.8 67 7.0 6.6 106
LITTLE WARM 9370 4.4 5.5 80 7.1 7.0 101
SOUTH PASS 9040 4.9 8.4 58 7.6 9.4 81
ST. LAWRENCE ALT 8620 2.6 3.9 67 4.1 4.7 87
TOGWOTEE PASS 9580 13.4 12.2 110 15.2 12.5 122
TOWNSEND CREEK 8700 3.0 4.4 68 5.7 6.1 93
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Basin wide percent of average 82 100
BIGHORN BASIN
BALD MTN. 9380 6.9 10.1 68 8.1 8.8 92
BEAR TRAP MEADOW 8200 4.5 2.7 167 5.6 4.6 122
BLACKWATER 9780 12.7 12.4 102 12.2 11.1 110
BONE SPRINGS DIV 9350 6.9 8.1 85 7.5 7.5 100
EVENING STAR 9200 14.3 14.3 100 17.3 13.5 128
GRAVE SPRINGS 8550 3.9 4.3 91 5.4 5.0 108
KIRWIN 9550 7.0 6.1 115 8.5 6.1 139
MARQUETTE 8760 1.8 5.0 36 6.0 5.4 111
MIDDLE POWDER 7760 4.5 5.7 79 5.0 7.0 71
OWL CREEK 8975 2.8 2.7 104 4.4 3.0 147
POWDER RIVER PASS 9480 5.3 5.4 98 7.4 6.2 119
SHELL CREEK 9580 7.8 7.6 103 8.4 6.9 122
SYLVAN LAKE 8420 9.6 11.0 87 14.0 11.4 123
SYLVAN ROAD 7120 4.6 6.5 71 12.5 10.4 120
TIMBER CREEK 7950 1.8 3.1 58 5.4 3.8 142
YOUNTS PEAK 8350 8.1 8.3 98 10.7 8.6 124
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Basin wide percent of average 90 116
SHOSHONE RIVER
BLACKWATER 9780 12.7 12.4 102 12.2 11.1 110
EVENING STAR 9200 14.3 14.3 100 17.3 13.5 128
KIRWIN 9550 7.0 6.1 115 8.5 6.1 139
MARQUETTE 8760 1.8 5.0 36 6.0 5.4 111
SYLVAN LAKE 8420 9.6 11.0 87 14.0 11.4 123
SYLVAN ROAD 7120 4.6 6.5 71 12.5 10.4 120
YOUNTS PEAK 8350 8.1 8.3 98 10.7 8.6 124
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Basin wide percent of average 91 122
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.5 2.7 167 5.6 4.6 122
BIG GOOSE 7990 4.3 4.6 93 7.3 4.6 159
BONE SPRINGS DIV 9350 6.9 8.1 85 7.5 7.5 100
BURGESS JUNCTION 7880 4.9 5.7 86 7.1 6.3 113
CLOUD PEAK RESERVOIR 9860 6.6 5.9 112 8.3 6.6 126
DOME LAKE 8880 5.0 6.2 81 8.4 7.1 118
GRAVE SPRINGS 8550 3.9 4.3 91 5.4 5.0 108
HANSEN SAWMILL 8360 3.3 3.3 100 5.5 4.4 125
MIDDLE POWDER 7760 4.5 5.7 79 5.0 7.0 71
POWDER RIVER PASS 9480 5.3 5.4 98 7.4 6.2 119
SUCKER CREEK 8880 5.4 5.4 100 7.5 6.9 109
TIE CREEK 6870 2.3 2.6 88 6.1 5.3 115
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Basin wide percent of average 95 113
BELLE FOURCHE
BLIND PARK 6890 2.3 3.8 61 4.4 6.4 69
COLE CANYON 5910 1.8 3.4 53 3.2 4.0 80
NORTH RAPID CREEK 6130 3.3 3.5 94 3.5 5.4 65
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Basin wide percent of average 69 70
UPPER N. PLATTE RIVER
COLUMBINE 9160 8.4 10.6 79 11.7 12.1 97
DIVIDE PEAK 8880 10.4 9.6 108 11.1 10.4 107
ELK RIVER 8700 8.1 7.7 105 10.7 9.3 115
JOE WRIGHT 10120 9.5 10.1 94 12.2 12.4 98
NORTH FRENCH CREEK 10130 12.9 13.9 93 13.8 12.5 110
OLD BATTLE 10000 13.8 15.1 91 17.3 16.7 104
SAGE CREEK BASIN 7850 7.6 5.6 136 9.0 6.1 148
SOUTH BRUSH CREEK 8440 5.9 5.4 109 9.5 8.1 117
TOWER 10500 15.0 21.5 70 17.9 18.6 96
WEBBER SPRINGS 9250 10.6 11.9 89 13.4 13.6 99
WILLOW CREEK PASS 9540 7.5 5.8 129 8.2 6.6 124
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Basin wide percent of average 94 107
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 9.3 11.2 83 10.4 10.6 98
CASPER MTN. 7900 5.2 7.1 73 7.8 7.4 105
DEADMAN HILL 10220 8.0 7.9 101 8.0 8.1 99
DEER PARK 9700 5.5 7.1 77 8.9 11.3 79
LAPRELE CREEK 8375 2.4 5.5 44 5.2 6.4 81
RENO HILL 8400 5.7 6.8 84 7.7 7.4 104
ROACH 9700 8.8 7.7 114 10.9 8.8 124
SAND LAKE 10050 12.3 15.4 80 12.8 12.0 107
SOUTH PASS 9040 4.9 8.4 58 7.6 9.4 81
WINDY PEAK 7900 3.1 3.6 86 4.9 5.7 86
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Basin wide percent of average 81 97
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 5.8 4.4 132 8.4 7.4 114
DIVIDE PEAK 8880 10.4 9.6 108 11.1 10.4 107
OLD BATTLE 10000 13.8 15.1 91 17.3 16.7 104
SANDSTONE RS 8150 6.3 5.7 111 10.0 9.3 108
WHISKEY PARK 8950 11.1 11.7 95 15.1 13.8 109
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Basin wide percent of average 102 107
UPPER GREEN RIVER
BIG SANDY OPENING 9080 5.0 7.2 69 5.7 6.8 84
BLIND BULL SUM 8650 9.2 13.7 67 8.5 11.6 73
EAST RIM DIVIDE 7930 2.4 6.2 39 5.1 6.0 85
ELKHART PARK G.S. 9400 4.7 6.5 72 6.1 6.9 88
GROS VENTRE SUMMIT 8750 6.7 7.2 93 8.1 6.6 123
GUNSIGHT PASS 9820 4.3 -M * 7.8 -M *
KENDALL R.S. 7740 4.0 7.0 57 6.5 7.2 90
LOOMIS PARK 8240 5.8 8.3 70 7.6 8.7 87
NEW FORK LAKE 8340 3.4 5.6 61 4.8 6.1 79
SNIDER BASIN 8060 3.6 7.2 50 5.4 8.3 65
SPRING CREEK DIVIDE 9000 8.0 13.0 62 9.2 13.7 67
TRIPLE PEAK 8500 8.5 12.3 69 11.6 11.7 99
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Basin wide percent of average 65 84
LOWER GREEN RIVER
HAMS FORK 7840 3.0 5.7 53 4.0 6.1 66
HEWINTA 9519 2.9 4.3 67 7.8 7.2 108
HICKERSON PARK 9145 2.0 3.0 67 4.7 4.3 109
HOLE-IN-ROCK 9150 1.7 2.8 61 4.9 3.9 126
INDIAN CREEK 9425 8.0 13.0 62 8.1 12.7 64
KELLEY R.S. 8180 5.0 7.9 63 7.5 10.5 71
STEEL CREEK PARK 10200 4.4 6.9 64 8.5 7.8 109
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Basin wide percent of average 62 87
UPPER BEAR RIVER
BUG LAKE 7950 4.6 8.8 52 6.5 9.5 68
HAYDEN FORK 9212 5.0 6.6 76 8.8 10.4 85
KELLEY R.S. 8180 5.0 7.9 63 7.5 10.5 71
LILY LAKE 9156 3.6 5.7 63 7.5 8.9 84
MONTE CRISTO 8960 8.5 11.7 73 10.2 12.6 81
SALT RIVER SUMMIT 7760 3.6 5.7 63 6.0 9.4 64
TRIAL LAKE 9992 6.5 11.0 59 8.8 11.7 75
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Basin wide percent of average 64 76
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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.