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 25 , 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 10.4 11.7 89 17.0 14.0 121
COTTONWOOD CREEK 7670 11.7 13.3 88 14.6 17.7 82
GRAND TARGHEE 9260 28.4 -M * 21.4 -M *
GRANITE CREEK 6770 9.1 11.3 81 14.8 12.9 115
GRASSY LAKE 7265 17.2 21.2 81 25.3 23.5 108
GROS VENTRE SUMMIT 8750 8.1 9.0 90 9.5 8.2 116
GUNSIGHT PASS 9820 5.3 -M * 9.2 -M *
LEWIS LAKE DIVIDE 7850 18.0 21.3 85 23.9 23.4 102
PHILLIPS BENCH 8200 16.3 17.2 95 20.2 18.3 110
SALT RIVER SUMMIT 7760 5.9 8.4 70 8.2 11.9 69
SNAKE RIVER STATION 6920 8.9 11.5 77 17.0 14.6 116
SPRING CREEK DIVIDE 9000 11.7 16.3 72 12.5 17.3 72
THUMB DIVIDE 7980 8.8 10.8 81 12.3 12.0 103
TOGWOTEE PASS 9580 16.7 15.8 106 18.6 15.9 117
TWO OCEAN PLATEAU 9240 22.1 17.8 124 19.4 17.4 111
WILLOW CREEK 8380 15.7 19.0 83 21.4 20.6 104
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Basin wide percent of average 88 103
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 15.5 15.3 101 14.8 13.1 113
BLACK BEAR 8170 27.0 24.4 111 27.0 24.3 111
CANYON 7870 10.0 8.4 119 13.2 10.2 129
FISHER CREEK 9100 25.6 22.5 114 23.6 23.1 102
MADISON PLATEAU 7750 16.6 15.4 108 20.2 16.4 123
NORTHEAST ENTRANCE 7350 4.6 7.3 63 8.7 8.4 104
PARKER PEAK 9400 15.6 14.0 111 15.0 10.5 143
SYLVAN LAKE 8420 12.7 14.2 89 17.2 13.9 124
THUMB DIVIDE 7980 8.8 10.8 81 12.3 12.0 103
TWO OCEAN PLATEAU 9240 22.1 17.8 124 19.4 17.4 111
WHISKEY CREEK 6800 10.4 10.5 99 16.1 13.0 124
WHITE MILL 8700 16.0 15.3 105 17.0 17.1 99
WOLVERINE 7650 5.1 8.2 62 8.7 8.7 100
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Basin wide percent of average 103 113
WIND RIVER
BURROUGHS CREEK 8750 9.8 9.6 102 12.5 10.7 117
COLD SPRINGS 9630 3.2 5.7 56 6.2 6.8 91
DEER PARK 9700 8.5 11.4 75 12.1 13.7 88
HOBBS PARK 10100 6.9 9.4 73 8.2 7.8 105
LITTLE WARM 9370 5.6 7.3 77 8.5 8.7 98
SOUTH PASS 9040 7.3 10.7 68 10.3 11.5 90
ST. LAWRENCE ALT 8620 3.2 4.6 70 5.0 5.4 93
TOGWOTEE PASS 9580 16.7 15.8 106 18.6 15.9 117
TOWNSEND CREEK 8700 4.1 5.4 76 7.2 7.0 103
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Basin wide percent of average 82 101
BIGHORN BASIN
BALD MTN. 9380 10.1 12.8 79 10.4 11.1 94
BEAR TRAP MEADOW 8200 5.4 3.3 164 6.3 5.3 119
BLACKWATER 9780 14.6 15.6 94 14.0 13.4 104
BONE SPRINGS DIV 9350 9.4 10.1 93 12.0 9.1 132
EVENING STAR 9200 16.9 18.6 91 20.0 16.7 120
GRAVE SPRINGS 8550 5.2 5.3 98 5.9 6.2 95
KIRWIN 9550 7.8 7.4 105 9.2 7.3 126
MARQUETTE 8760 2.1 5.7 37 6.3 6.0 105
MIDDLE POWDER 7760 6.0 6.8 88 5.8 8.0 72
OWL CREEK 8975 3.4 3.2 106 4.9 3.5 140
POWDER RIVER PASS 9480 7.2 6.9 104 9.2 7.8 118
SHELL CREEK 9580 10.0 9.4 106 10.2 8.8 116
SYLVAN LAKE 8420 12.7 14.2 89 17.2 13.9 124
SYLVAN ROAD 7120 6.3 8.3 76 14.5 12.7 114
TIMBER CREEK 7950 1.9 3.5 54 6.0 4.3 140
YOUNTS PEAK 8350 10.2 11.3 90 11.9 10.8 110
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Basin wide percent of average 91 113
SHOSHONE RIVER
BLACKWATER 9780 14.6 15.6 94 14.0 13.4 104
EVENING STAR 9200 16.9 18.6 91 20.0 16.7 120
KIRWIN 9550 7.8 7.4 105 9.2 7.3 126
MARQUETTE 8760 2.1 5.7 37 6.3 6.0 105
SYLVAN LAKE 8420 12.7 14.2 89 17.2 13.9 124
SYLVAN ROAD 7120 6.3 8.3 76 14.5 12.7 114
YOUNTS PEAK 8350 10.2 11.3 90 11.9 10.8 110
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Basin wide percent of average 87 115
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.4 3.3 164 6.3 5.3 119
BIG GOOSE 7990 5.1 5.6 91 8.1 5.2 156
BONE SPRINGS DIV 9350 9.4 10.1 93 12.0 9.1 132
BURGESS JUNCTION 7880 6.9 7.0 99 9.0 7.5 120
CLOUD PEAK RESERVOIR 9860 8.5 7.5 113 9.6 7.8 123
DOME LAKE 8880 6.2 7.6 82 9.6 8.3 116
GRAVE SPRINGS 8550 5.2 5.3 98 5.9 6.2 95
HANSEN SAWMILL 8360 3.9 4.0 98 6.0 5.1 118
MIDDLE POWDER 7760 6.0 6.8 88 5.8 8.0 72
POWDER RIVER PASS 9480 7.2 6.9 104 9.2 7.8 118
SUCKER CREEK 8880 7.9 6.7 118 9.8 8.3 118
TIE CREEK 6870 3.8 3.7 103 7.8 6.4 122
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Basin wide percent of average 101 117
BELLE FOURCHE
BLIND PARK 6890 3.8 5.0 76 6.2 7.5 83
COLE CANYON 5910 3.3 4.2 79 4.5 4.5 100
NORTH RAPID CREEK 6130 4.3 4.6 93 4.8 6.1 79
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Basin wide percent of average 83 86
UPPER N. PLATTE RIVER
COLUMBINE 9160 13.8 15.0 92 16.6 15.6 106
DIVIDE PEAK 8880 14.1 12.2 116 14.5 13.0 112
ELK RIVER 8700 12.9 11.1 116 14.2 11.9 119
JOE WRIGHT 10120 13.3 13.0 102 15.9 15.3 104
NORTH FRENCH CREEK 10130 18.9 17.4 109 19.2 15.5 124
OLD BATTLE 10000 18.7 18.7 100 22.7 21.1 108
SAGE CREEK BASIN 7850 10.3 7.1 145 11.6 7.5 155
SOUTH BRUSH CREEK 8440 7.8 6.9 113 11.3 10.2 111
TOWER 10500 23.2 28.0 83 23.7 23.9 99
WEBBER SPRINGS 9250 14.3 15.0 95 17.4 17.1 102
WILLOW CREEK PASS 9540 9.5 7.1 134 9.8 7.9 124
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Basin wide percent of average 103 111
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 11.9 14.4 83 12.9 13.5 96
CASPER MTN. 7900 6.7 8.5 79 9.2 8.5 108
DEADMAN HILL 10220 9.9 9.9 100 10.1 10.0 101
DEER PARK 9700 8.5 11.4 75 12.1 13.7 88
LAPRELE CREEK 8375 -M 6.9 * -M 7.8 *
RENO HILL 8400 7.1 8.0 89 9.1 8.9 102
ROACH 9700 11.5 10.2 113 13.9 11.0 126
SAND LAKE 10050 16.2 18.8 86 16.5 15.1 109
SOUTH PASS 9040 7.3 10.7 68 10.3 11.5 90
WINDY PEAK 7900 4.2 4.2 100 6.0 6.7 90
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Basin wide percent of average 87 101
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.5 7.1 134 11.1 9.3 119
DIVIDE PEAK 8880 14.1 12.2 116 14.5 13.0 112
OLD BATTLE 10000 18.7 18.7 100 22.7 21.1 108
SANDSTONE RS 8150 10.0 8.8 114 13.4 11.8 114
WHISKEY PARK 8950 17.0 16.9 101 20.8 18.3 114
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Basin wide percent of average 109 112
UPPER GREEN RIVER
BIG SANDY OPENING 9080 7.4 8.9 83 8.0 8.5 94
BLIND BULL SUM 8650 12.9 17.3 75 11.1 14.5 77
EAST RIM DIVIDE 7930 4.0 7.9 51 6.5 7.6 86
ELKHART PARK G.S. 9400 6.1 8.2 74 7.3 8.5 86
GROS VENTRE SUMMIT 8750 8.1 9.0 90 9.5 8.2 116
GUNSIGHT PASS 9820 5.3 -M * 9.2 -M *
KENDALL R.S. 7740 5.7 9.2 62 7.9 9.2 86
LOOMIS PARK 8240 8.3 10.5 79 9.9 11.1 89
NEW FORK LAKE 8340 4.8 7.2 67 5.7 7.5 76
SNIDER BASIN 8060 5.8 9.1 64 7.4 10.5 70
SPRING CREEK DIVIDE 9000 11.7 16.3 72 12.5 17.3 72
TRIPLE PEAK 8500 11.9 15.6 76 15.0 15.2 99
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Basin wide percent of average 73 85
LOWER GREEN RIVER
HAMS FORK 7840 5.2 7.7 68 5.6 7.9 71
HEWINTA 9519 5.2 6.1 85 10.1 8.8 115
HICKERSON PARK 9145 2.9 4.1 71 5.6 5.0 112
HOLE-IN-ROCK 9150 2.4 3.8 63 5.9 4.6 128
INDIAN CREEK 9425 11.5 16.5 70 11.2 15.9 70
KELLEY R.S. 8180 7.2 9.9 73 9.7 13.1 74
STEEL CREEK PARK 10200 7.5 8.7 86 11.3 9.5 119
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Basin wide percent of average 74 92
UPPER BEAR RIVER
BUG LAKE 7950 8.3 12.1 69 9.3 12.2 76
HAYDEN FORK 9212 9.5 9.0 106 13.1 12.8 102
KELLEY R.S. 8180 7.2 9.9 73 9.7 13.1 74
LILY LAKE 9156 7.0 7.5 93 10.4 10.8 96
MONTE CRISTO 8960 14.5 16.6 87 15.3 15.7 97
SALT RIVER SUMMIT 7760 5.9 8.4 70 8.2 11.9 69
TRIAL LAKE 9992 10.3 14.5 71 13.3 14.9 89
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Basin wide percent of average 80 87
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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.