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 15 , 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 13.0 10.3 126 13.8 12.4 111
COTTONWOOD CREEK 7600 12.0 11.8 102 12.9 15.8 82
GRANITE CREEK 6770 11.6 9.8 118 12.4 11.4 109
GRASSY LAKE 7265 22.7 18.5 123 22.4 20.8 108
GROS VENTRE SUMMIT 8775 7.2 8.2 88 6.7 7.4 91
LEWIS LAKE DIVIDE 7860 21.3 18.5 115 21.6 20.8 104
PHILLIPS BENCH 8200 16.3 15.3 107 16.7 16.2 103
SALT RIVER SUMMIT 7600 8.3 7.1 117 9.1 10.6 86
SNAKE RIVER STATION 6920 13.9 9.9 140 14.8 13.1 113
SPRING CREEK DIVIDE 9000 12.9 14.7 88 12.5 15.4 81
THUMB DIVIDE 7980 12.9 9.5 136 12.1 10.7 113
TOGWOTEE PASS 9580 13.0 14.1 92 13.1 14.2 92
TWO OCEAN PLATEAU 9360 17.6 16.0 110 15.8 15.8 100
WILLOW CREEK 8450 16.9 17.0 99 18.3 18.3 100
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Basin wide percent of average 110 100
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 11.9 13.9 86 11.9 11.8 101
BLACK BEAR 8170 26.5 21.4 124 24.3 21.4 114
CANYON 8090 7.4 7.5 99 8.4 9.2 91
FISHER CREEK 9100 18.7 20.2 93 18.7 20.5 91
MADISON PLATEAU 7750 16.0 13.7 117 15.6 14.7 106
NORTHEAST ENTRANCE 7350 4.2 6.4 66 6.7 7.5 89
PARKER PEAK 9400 11.2 12.6 89 9.0 9.5 95
SYLVAN LAKE 8420 10.1 12.7 80 12.4 12.7 98
THUMB DIVIDE 7980 12.9 9.5 136 12.1 10.7 113
TWO OCEAN PLATEAU 9360 17.6 16.0 110 15.8 15.8 100
WHISKEY CREEK 6800 11.6 9.2 126 13.5 11.7 115
WHITE MILL 8700 10.6 13.8 77 12.3 15.3 80
WOLVERINE 7650 5.9 7.2 82 6.1 8.0 76
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Basin wide percent of average 100 99
WIND RIVER
BURROUGHS CREEK 8750 7.5 8.6 87 8.5 9.5 89
COLD SPRINGS 9630 3.7 5.3 70 3.8 6.3 60
DEER PARK 9700 10.4 9.1 114 12.2 12.5 98
HOBBS PARK 10100 6.9 8.8 78 6.1 7.2 85
LITTLE WARM 9370 4.9 6.6 74 5.8 7.8 74
SOUTH PASS 9040 10.7 9.7 110 10.6 10.6 100
ST. LAWRENCE ALT 8620 2.9 4.3 67 3.4 5.1 67
TOGWOTEE PASS 9580 13.0 14.1 92 13.1 14.2 92
TOWNSEND CREEK 8700 4.9 5.0 98 5.7 6.6 86
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Basin wide percent of average 91 87
BIGHORN BASIN
BALD MTN. 9380 9.2 11.7 79 8.3 10.0 83
BEAR TRAP MEADOW 8200 4.1 3.0 137 4.0 5.0 80
BLACKWATER 9780 14.3 14.1 101 12.7 12.3 103
BONE SPRINGS DIV 9350 7.8 9.3 84 8.5 8.3 102
EVENING STAR 9200 12.9 16.8 77 15.7 15.1 104
GRAVE SPRINGS 8550 6.0 4.9 122 5.5 5.6 98
KIRWIN 9550 4.0 6.9 58 4.9 6.7 73
MARQUETTE 8760 4.4 5.4 81 4.8 5.7 84
MIDDLE POWDER 7760 6.6 6.3 105 5.3 7.5 71
OWL CREEK 8975 2.2 3.0 73 2.3 3.3 70
POWDER RIVER PASS 9480 6.3 6.2 102 7.1 7.0 101
SHELL CREEK 9580 8.4 8.6 98 8.0 7.9 101
SYLVAN LAKE 8420 10.1 12.7 80 12.4 12.7 98
SYLVAN ROAD 7120 7.5 7.6 99 9.9 11.5 86
TIMBER CREEK 7950 2.1 3.3 64 2.7 4.1 66
YOUNTS PEAK 8350 5.6 9.8 57 8.1 9.6 84
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Basin wide percent of average 86 91
SHOSHONE RIVER
BLACKWATER 9780 14.3 14.1 101 12.7 12.3 103
EVENING STAR 9200 12.9 16.8 77 15.7 15.1 104
KIRWIN 9550 4.0 6.9 58 4.9 6.7 73
MARQUETTE 8760 4.4 5.4 81 4.8 5.7 84
SYLVAN LAKE 8420 10.1 12.7 80 12.4 12.7 98
SYLVAN ROAD 7120 7.5 7.6 99 9.9 11.5 86
YOUNTS PEAK 8350 5.6 9.8 57 8.1 9.6 84
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Basin wide percent of average 80 93
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.1 3.0 137 4.0 5.0 80
BIG GOOSE 7990 4.4 5.2 85 5.0 5.0 100
BONE SPRINGS DIV 9350 7.8 9.3 84 8.5 8.3 102
BURGESS JUNCTION 7880 5.4 6.4 84 5.5 6.9 80
CLOUD PEAK RESERVOIR 9860 7.4 6.9 107 6.7 7.2 93
DOME LAKE 8880 -M 7.0 * -M 7.7 *
GRAVE SPRINGS 8550 6.0 4.9 122 5.5 5.6 98
HANSEN SAWMILL 8360 4.0 3.7 108 3.9 4.8 81
MIDDLE POWDER 7760 6.6 6.3 105 5.3 7.5 71
POWDER RIVER PASS 9480 6.3 6.2 102 7.1 7.0 101
SUCKER CREEK 8880 5.6 6.2 90 6.8 7.6 89
TIE CREEK 6870 3.3 3.5 94 4.6 5.9 78
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Basin wide percent of average 99 89
BELLE FOURCHE
BLIND PARK 6890 3.4 4.5 76 5.4 6.9 78
COLE CANYON 5910 2.9 3.5 83 3.9 -M *
NORTH RAPID CREEK 6130 3.2 4.0 80 4.4 5.8 76
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Basin wide percent of average 79 77
UPPER N. PLATTE RIVER
COLUMBINE 9400 13.1 12.8 102 14.7 13.8 107
DIVIDE PEAK 8800 11.3 11.1 102 12.0 11.7 103
ELK RIVER 8700 11.2 9.5 118 12.6 10.6 119
JOE WRIGHT 10120 8.1 11.6 70 10.2 13.8 74
NORTH FRENCH CREEK 10100 12.6 15.8 80 11.8 14.0 84
OLD BATTLE 10000 19.4 17.0 114 20.8 18.9 110
SAGE CREEK BASIN 7850 8.5 6.4 133 9.6 6.7 143
SOUTH BRUSH CREEK 8400 5.1 6.1 84 5.9 9.2 64
TOWER 10500 23.1 24.8 93 24.8 21.3 116
WEBBER SPRINGS 9200 14.9 13.5 110 16.3 15.3 107
WILLOW CREEK PASS 9540 5.5 6.4 86 5.1 7.3 70
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Basin wide percent of average 98 101
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 9.7 12.9 75 9.1 12.0 76
CASPER MTN. 7900 5.8 7.9 73 5.1 8.0 64
DEADMAN HILL 10220 6.3 9.0 70 8.9 9.1 98
DEER PARK 9700 10.4 9.1 114 12.2 12.5 98
LAPRELE CREEK 8320 -M 6.3 * -M 7.1 *
RENO HILL 8400 6.9 7.5 92 6.5 8.1 80
ROACH 9700 9.8 9.0 109 10.5 9.9 106
SAND LAKE 10080 12.9 17.2 75 12.4 13.5 92
SOUTH PASS 9040 10.7 9.7 110 10.6 10.6 100
WINDY PEAK 7840 3.2 3.9 82 4.0 6.2 65
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Basin wide percent of average 88 88
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.3 5.8 160 9.3 8.4 111
DIVIDE PEAK 8800 11.3 11.1 102 12.0 11.7 103
OLD BATTLE 10000 19.4 17.0 114 20.8 18.9 110
SANDSTONE RS 8150 7.0 7.3 96 12.6 10.5 120
WHISKEY PARK 8950 15.5 14.4 108 15.7 16.0 98
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Basin wide percent of average 112 107
UPPER GREEN RIVER
BIG SANDY OPENING 9100 8.6 8.1 106 8.2 7.7 106
BLIND BULL SUM 8650 14.2 15.7 90 11.5 13.0 88
EAST RIM DIVIDE 7930 6.8 7.1 96 7.1 6.8 104
ELKHART PARK G.S. 9400 7.7 7.4 104 8.1 7.7 105
GROS VENTRE SUMMIT 8775 7.2 8.2 88 6.7 7.4 91
KENDALL R.S. 7740 5.7 8.2 70 8.8 8.2 107
LOOMIS PARK 8240 10.3 9.5 108 10.5 9.9 106
NEW FORK LAKE 8340 6.6 6.4 103 6.2 6.8 91
SNIDER BASIN 8250 8.1 8.2 99 8.0 9.3 86
SPRING CREEK DIVIDE 9000 12.9 14.7 88 12.5 15.4 81
TRIPLE PEAK 8500 12.8 14.1 91 13.8 13.5 102
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Basin wide percent of average 94 96
LOWER GREEN RIVER
HAMS FORK 7840 6.6 6.8 97 6.2 7.0 89
HEWINTA 9500 4.8 5.2 92 6.7 8.0 84
HICKERSON PARK 9150 2.9 3.6 81 5.2 4.7 111
HOLE-IN-ROCK 9150 3.9 3.3 118 4.2 4.3 98
INDIAN CREEK 9425 13.8 14.9 93 12.1 14.3 85
KELLEY R.S. 8180 9.1 9.0 101 10.1 11.8 86
STEEL CREEK PARK 10100 6.5 7.8 83 7.1 8.7 82
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Basin wide percent of average 94 88
UPPER BEAR RIVER
BUG LAKE 7950 11.4 10.5 109 11.4 10.9 105
HAYDEN FORK 9400 6.7 7.9 85 10.3 11.6 89
KELLEY R.S. 8180 9.1 9.0 101 10.1 11.8 86
LILY LAKE 9050 5.7 6.7 85 7.7 9.9 78
MONTE CRISTO 8960 14.4 14.2 101 14.9 14.2 105
SALT RIVER SUMMIT 7600 8.3 7.1 117 9.1 10.6 86
TRIAL LAKE 9960 12.5 12.8 98 13.9 13.3 105
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Basin wide percent of average 100 94
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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.