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 9 , 2004
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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 13.1 9.4 139 13.9 11.6 120
COTTONWOOD CREEK 7600 12.1 10.9 111 13.0 14.8 88
GRANITE CREEK 6770 11.7 8.9 131 12.5 10.6 118
GRASSY LAKE 7265 22.6 16.9 134 22.4 19.3 116
GROS VENTRE SUMMIT 8775 7.3 7.6 96 6.8 7.0 97
LEWIS LAKE DIVIDE 7860 21.3 16.9 126 21.9 19.4 113
PHILLIPS BENCH 8200 16.4 14.1 116 16.7 15.0 111
SALT RIVER SUMMIT 7600 8.4 6.4 131 9.1 9.9 92
SNAKE RIVER STATION 6920 13.9 9.0 154 14.8 12.2 121
SPRING CREEK DIVIDE 9000 13.0 13.8 94 12.6 14.4 88
THUMB DIVIDE 7980 13.0 8.7 149 12.1 10.0 121
TOGWOTEE PASS 9580 12.9 13.1 98 13.2 13.2 100
TWO OCEAN PLATEAU 9360 17.6 14.9 118 15.8 14.8 107
WILLOW CREEK 8450 16.8 15.8 106 18.4 17.1 108
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Basin wide percent of average 120 107
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 11.9 12.9 92 11.9 11.0 108
BLACK BEAR 8170 26.3 19.6 134 24.2 19.8 122
CANYON 8090 7.4 6.9 107 8.4 8.6 98
FISHER CREEK 9100 18.5 18.5 100 18.5 19.0 97
MADISON PLATEAU 7750 15.9 12.6 126 15.6 13.7 114
NORTHEAST ENTRANCE 7350 4.3 5.8 74 6.8 7.0 97
PARKER PEAK 9400 11.3 11.7 97 9.1 8.9 102
SYLVAN LAKE 8420 10.2 11.8 86 12.5 12.0 104
THUMB DIVIDE 7980 13.0 8.7 149 12.1 10.0 121
TWO OCEAN PLATEAU 9360 17.6 14.9 118 15.8 14.8 107
WHISKEY CREEK 6800 11.7 8.5 138 13.2 10.9 121
WHITE MILL 8700 10.6 12.6 84 12.5 14.2 88
WOLVERINE 7650 6.1 6.6 92 6.2 7.6 82
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Basin wide percent of average 109 106
WIND RIVER
BURROUGHS CREEK 8750 7.5 7.8 96 8.7 8.9 98
COLD SPRINGS 9630 3.7 5.0 74 3.9 6.1 64
DEER PARK 9700 10.4 8.1 128 12.2 11.8 103
HOBBS PARK 10100 7.0 8.3 84 6.3 6.9 91
LITTLE WARM 9370 5.0 6.0 83 5.9 7.3 81
SOUTH PASS 9040 10.7 9.1 118 10.6 10.0 106
ST. LAWRENCE ALT 8620 2.8 4.1 68 3.4 4.9 69
TOGWOTEE PASS 9580 12.9 13.1 98 13.2 13.2 100
TOWNSEND CREEK 8700 5.0 4.7 106 5.7 6.3 90
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Basin wide percent of average 98 93
BIGHORN BASIN
BALD MTN. 9380 9.2 10.8 85 8.2 9.4 87
BEAR TRAP MEADOW 8200 4.0 2.8 143 4.0 4.8 83
BLACKWATER 9780 14.3 13.2 108 12.7 11.7 109
BONE SPRINGS DIV 9350 7.7 8.7 89 8.3 7.9 105
EVENING STAR 9200 12.9 15.5 83 15.8 14.2 111
GRAVE SPRINGS 8550 5.9 4.5 131 5.0 5.3 94
KIRWIN 9550 4.0 6.5 62 5.0 6.3 79
MARQUETTE 8760 4.4 5.2 85 4.8 5.5 87
MIDDLE POWDER 7760 6.6 6.0 110 5.3 7.2 74
OWL CREEK 8975 2.2 2.9 76 2.3 3.1 74
POWDER RIVER PASS 9480 6.3 5.8 109 6.9 6.6 105
SHELL CREEK 9580 8.2 8.0 102 8.0 7.4 108
SYLVAN LAKE 8420 10.2 11.8 86 12.5 12.0 104
SYLVAN ROAD 7120 7.5 7.0 107 9.9 10.9 91
TIMBER CREEK 7950 2.0 3.2 62 2.7 3.9 69
YOUNTS PEAK 8350 5.9 9.0 66 8.4 9.0 93
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Basin wide percent of average 92 96
SHOSHONE RIVER
BLACKWATER 9780 14.3 13.2 108 12.7 11.7 109
EVENING STAR 9200 12.9 15.5 83 15.8 14.2 111
KIRWIN 9550 4.0 6.5 62 5.0 6.3 79
MARQUETTE 8760 4.4 5.2 85 4.8 5.5 87
SYLVAN LAKE 8420 10.2 11.8 86 12.5 12.0 104
SYLVAN ROAD 7120 7.5 7.0 107 9.9 10.9 91
YOUNTS PEAK 8350 5.9 9.0 66 8.4 9.0 93
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Basin wide percent of average 87 99
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.0 2.8 143 4.0 4.8 83
BIG GOOSE 7990 4.4 4.9 90 5.0 4.8 104
BONE SPRINGS DIV 9350 7.7 8.7 89 8.3 7.9 105
BURGESS JUNCTION 7880 5.4 6.0 90 5.7 6.6 86
CLOUD PEAK RESERVOIR 9860 7.4 6.4 116 6.5 6.9 94
DOME LAKE 8880 -M 6.6 * -M 7.4 *
GRAVE SPRINGS 8550 5.9 4.5 131 5.0 5.3 94
HANSEN SAWMILL 8360 4.0 3.5 114 3.8 4.6 83
MIDDLE POWDER 7760 6.6 6.0 110 5.3 7.2 74
POWDER RIVER PASS 9480 6.3 5.8 109 6.9 6.6 105
SUCKER CREEK 8880 5.5 5.8 95 6.7 7.2 93
TIE CREEK 6870 3.3 3.1 106 4.7 5.5 85
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Basin wide percent of average 105 92
BELLE FOURCHE
BLIND PARK 6890 3.4 4.1 83 5.4 6.6 82
COLE CANYON 5910 2.9 3.3 88 3.8 -M *
NORTH RAPID CREEK 6130 3.3 3.7 89 4.3 5.6 77
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Basin wide percent of average 86 80
UPPER N. PLATTE RIVER
COLUMBINE 9400 13.0 11.6 112 14.7 12.8 115
DIVIDE PEAK 8800 11.4 10.3 111 12.0 11.0 109
ELK RIVER 8700 11.3 8.5 133 12.6 9.9 127
JOE WRIGHT 10120 8.2 10.8 76 10.4 13.0 80
NORTH FRENCH CREEK 10100 12.5 14.8 84 11.8 13.1 90
OLD BATTLE 10000 19.3 16.0 121 20.6 17.7 116
SAGE CREEK BASIN 7850 8.5 5.9 144 9.6 6.3 152
SOUTH BRUSH CREEK 8400 5.3 5.7 93 6.0 8.6 70
TOWER 10500 23.1 23.0 100 24.6 19.8 124
WEBBER SPRINGS 9200 14.9 12.6 118 16.3 14.3 114
WILLOW CREEK PASS 9540 5.5 6.1 90 5.2 6.9 75
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Basin wide percent of average 106 108
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 9.6 12.0 80 8.9 11.2 79
CASPER MTN. 7900 5.7 7.5 76 5.0 7.6 66
DEADMAN HILL 10220 6.3 8.4 75 8.8 8.6 102
DEER PARK 9700 10.4 8.1 128 12.2 11.8 103
LAPRELE CREEK 8320 5.3 5.9 90 5.6 6.7 84
RENO HILL 8400 6.9 7.1 97 6.5 7.7 84
ROACH 9700 9.7 8.3 117 10.5 9.3 113
SAND LAKE 10080 12.8 16.2 79 12.3 12.7 97
SOUTH PASS 9040 10.7 9.1 118 10.6 10.0 106
WINDY PEAK 7840 3.3 3.7 89 4.0 5.9 68
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Basin wide percent of average 94 92
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.5 5.1 186 9.6 7.8 123
DIVIDE PEAK 8800 11.4 10.3 111 12.0 11.0 109
OLD BATTLE 10000 19.3 16.0 121 20.6 17.7 116
SANDSTONE RS 8150 7.2 6.4 112 12.6 9.8 129
WHISKEY PARK 8950 15.5 13.0 119 14.6 14.8 99
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Basin wide percent of average 124 114
UPPER GREEN RIVER
BIG SANDY OPENING 9100 8.6 7.6 113 8.3 7.2 115
BLIND BULL SUM 8650 14.3 14.6 98 11.6 12.2 95
EAST RIM DIVIDE 7930 6.8 6.6 103 7.1 6.4 111
ELKHART PARK G.S. 9400 7.7 6.9 112 8.1 7.3 111
GROS VENTRE SUMMIT 8775 7.3 7.6 96 6.8 7.0 97
KENDALL R.S. 7740 8.9 7.6 117 8.9 7.6 117
LOOMIS PARK 8240 10.4 8.9 117 10.7 9.2 116
NEW FORK LAKE 8340 6.7 6.0 112 6.4 6.4 100
SNIDER BASIN 8250 8.2 7.6 108 8.1 8.7 93
SPRING CREEK DIVIDE 9000 13.0 13.8 94 12.6 14.4 88
TRIPLE PEAK 8500 12.9 13.2 98 13.8 12.5 110
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Basin wide percent of average 104 104
LOWER GREEN RIVER
HAMS FORK 7840 6.7 6.2 108 6.2 6.5 95
HEWINTA 9500 5.1 4.7 109 6.8 7.6 89
HICKERSON PARK 9150 3.0 3.3 91 5.5 4.5 122
HOLE-IN-ROCK 9150 3.6 3.0 120 4.4 4.1 107
INDIAN CREEK 9425 13.7 13.9 99 12.1 13.4 90
KELLEY R.S. 8180 9.2 8.4 110 10.1 11.1 91
STEEL CREEK PARK 10100 6.5 7.3 89 7.1 8.2 87
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Basin wide percent of average 102 94
UPPER BEAR RIVER
BUG LAKE 7950 11.4 9.6 119 11.5 10.2 113
HAYDEN FORK 9400 6.7 7.2 93 -M 10.9 *
KELLEY R.S. 8180 9.2 8.4 110 10.1 11.1 91
LILY LAKE 9050 6.1 6.2 98 7.8 9.3 84
MONTE CRISTO 8960 14.6 12.8 114 14.8 13.3 111
SALT RIVER SUMMIT 7600 8.4 6.4 131 9.1 9.9 92
TRIAL LAKE 9960 12.5 11.8 106 13.9 12.4 112
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Basin wide percent of average 110 102
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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.