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 1 , 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 11.2 8.2 137 12.1 10.4 116
COTTONWOOD CREEK 7600 9.9 9.7 102 10.8 13.5 80
GRANITE CREEK 6770 9.8 7.6 129 10.5 9.5 111
GRASSY LAKE 7265 20.0 14.7 136 20.2 17.3 117
GROS VENTRE SUMMIT 8775 6.5 6.9 94 5.9 6.4 92
LEWIS LAKE DIVIDE 7860 18.5 14.8 125 19.3 17.5 110
PHILLIPS BENCH 8200 -M 12.6 * -M 13.5 *
SALT RIVER SUMMIT 7600 6.8 5.4 126 7.5 9.0 83
SNAKE RIVER STATION 6920 -M 7.9 * 14.3 11.0 130
SPRING CREEK DIVIDE 9000 10.6 12.5 85 10.4 13.0 80
THUMB DIVIDE 7980 11.1 7.6 146 10.7 9.1 118
TOGWOTEE PASS 9580 11.4 11.7 97 11.6 12.0 97
TWO OCEAN PLATEAU 9360 15.6 13.5 116 13.6 13.5 101
WILLOW CREEK 8450 14.2 14.3 99 15.8 15.5 102
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Basin wide percent of average 115 103
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 10.8 11.5 94 10.9 10.0 109
BLACK BEAR 8170 22.8 17.2 133 21.7 17.6 123
CANYON 8090 6.4 6.1 105 7.2 7.8 92
FISHER CREEK 9100 16.7 16.3 102 16.8 17.1 98
MADISON PLATEAU 7750 13.8 11.2 123 13.7 12.4 110
NORTHEAST ENTRANCE 7350 3.7 5.0 74 6.2 6.4 97
PARKER PEAK 9400 10.3 10.6 97 8.4 8.2 102
SYLVAN LAKE 8420 8.9 10.5 85 11.2 11.0 102
THUMB DIVIDE 7980 11.1 7.6 146 10.7 9.1 118
TWO OCEAN PLATEAU 9360 15.6 13.5 116 13.6 13.5 101
WHISKEY CREEK 6800 10.1 7.5 135 11.4 9.9 115
WHITE MILL 8700 9.3 11.1 84 11.3 12.8 88
WOLVERINE 7650 5.2 5.8 90 5.3 7.0 76
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Basin wide percent of average 108 104
WIND RIVER
BURROUGHS CREEK 8750 6.8 6.7 101 7.9 8.0 99
COLD SPRINGS 9630 -M 4.6 * -M 5.7 *
DEER PARK 9700 -M 6.7 * 10.5 10.9 96
HOBBS PARK 10100 5.6 7.6 74 5.0 6.4 78
LITTLE WARM 9370 4.3 5.3 81 5.0 6.7 75
SOUTH PASS 9040 9.2 8.2 112 9.2 9.2 100
ST. LAWRENCE ALT 8620 2.2 3.8 58 2.7 4.6 59
TOGWOTEE PASS 9580 11.4 11.7 97 11.6 12.0 97
TOWNSEND CREEK 8700 4.3 4.4 98 4.9 6.0 82
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Basin wide percent of average 92 89
BIGHORN BASIN
BALD MTN. 9380 8.4 9.7 87 7.5 8.5 88
BEAR TRAP MEADOW 8200 3.8 2.6 146 3.7 4.5 82
BLACKWATER 9780 12.9 12.0 108 11.3 10.8 105
BONE SPRINGS DIV 9350 7.1 7.8 91 7.7 7.3 105
EVENING STAR 9200 11.0 13.7 80 13.8 13.0 106
GRAVE SPRINGS 8550 5.4 4.0 135 4.4 4.9 90
KIRWIN 9550 3.5 5.9 59 4.3 5.9 73
MARQUETTE 8760 4.0 5.0 80 4.4 5.3 83
MIDDLE POWDER 7760 6.3 5.5 115 4.9 6.8 72
OWL CREEK 8975 1.9 2.7 70 2.1 2.9 72
POWDER RIVER PASS 9480 5.6 5.3 106 6.2 6.0 103
SHELL CREEK 9580 7.7 7.3 105 7.4 6.7 110
SYLVAN LAKE 8420 8.9 10.5 85 11.2 11.0 102
SYLVAN ROAD 7120 6.6 6.2 106 8.9 10.1 88
TIMBER CREEK 7950 1.9 3.0 63 2.7 3.7 73
YOUNTS PEAK 8350 5.2 7.9 66 6.9 8.2 84
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Basin wide percent of average 92 93
SHOSHONE RIVER
BLACKWATER 9780 12.9 12.0 108 11.3 10.8 105
EVENING STAR 9200 11.0 13.7 80 13.8 13.0 106
KIRWIN 9550 3.5 5.9 59 4.3 5.9 73
MARQUETTE 8760 4.0 5.0 80 4.4 5.3 83
SYLVAN LAKE 8420 8.9 10.5 85 11.2 11.0 102
SYLVAN ROAD 7120 6.6 6.2 106 8.9 10.1 88
YOUNTS PEAK 8350 5.2 7.9 66 6.9 8.2 84
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Basin wide percent of average 85 95
POWDER-TONGUE
BEAR TRAP MEADOW 8200 3.8 2.6 146 3.7 4.5 82
BIG GOOSE 7990 4.0 4.4 91 4.8 4.5 107
BONE SPRINGS DIV 9350 7.1 7.8 91 7.7 7.3 105
BURGESS JUNCTION 7880 5.1 5.5 93 5.2 6.1 85
CLOUD PEAK RESERVOIR 9860 6.6 5.7 116 5.8 6.4 91
DOME LAKE 8880 -M 6.1 * -M 6.9 *
GRAVE SPRINGS 8550 5.4 4.0 135 4.4 4.9 90
HANSEN SAWMILL 8360 3.6 3.3 109 3.5 4.3 81
MIDDLE POWDER 7760 6.3 5.5 115 4.9 6.8 72
POWDER RIVER PASS 9480 5.6 5.3 106 6.2 6.0 103
SUCKER CREEK 8880 5.3 5.2 102 6.0 6.7 90
TIE CREEK 6870 3.2 2.5 128 4.4 5.1 86
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Basin wide percent of average 108 90
BELLE FOURCHE
BLIND PARK 6890 2.9 3.5 83 5.0 6.2 81
COLE CANYON 5910 2.5 3.0 83 3.3 -M *
NORTH RAPID CREEK 6130 2.9 3.3 88 3.9 5.3 74
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Basin wide percent of average 85 77
UPPER N. PLATTE RIVER
COLUMBINE 9400 11.3 10.0 113 13.1 11.5 114
DIVIDE PEAK 8800 10.1 9.2 110 10.8 10.0 108
ELK RIVER 8700 9.6 7.2 133 11.2 8.9 126
JOE WRIGHT 10120 7.4 9.7 76 9.0 11.9 76
NORTH FRENCH CREEK 10100 10.9 13.4 81 10.4 12.0 87
OLD BATTLE 10000 16.7 14.6 114 17.8 16.0 111
SAGE CREEK BASIN 7850 7.6 5.3 143 8.6 5.8 148
SOUTH BRUSH CREEK 8400 4.5 5.1 88 5.3 7.8 68
TOWER 10500 20.4 20.6 99 21.4 17.9 120
WEBBER SPRINGS 9200 12.7 11.5 110 14.1 13.0 108
WILLOW CREEK PASS 9540 4.6 5.6 82 4.2 6.4 66
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Basin wide percent of average 103 104
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 7.9 10.8 73 7.5 10.1 74
CASPER MTN. 7900 5.6 6.9 81 4.8 7.2 67
DEADMAN HILL 10220 5.0 7.6 66 7.3 7.9 92
DEER PARK 9700 -M 6.7 * 10.5 10.9 96
LAPRELE CREEK 8320 5.2 5.3 98 5.5 6.2 89
RENO HILL 8400 6.7 6.6 102 6.3 7.2 88
ROACH 9700 8.2 7.3 112 8.9 8.5 105
SAND LAKE 10080 11.3 14.9 76 10.8 11.6 93
SOUTH PASS 9040 9.2 8.2 112 9.2 9.2 100
WINDY PEAK 7840 2.9 3.5 83 3.8 5.5 69
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Basin wide percent of average 87 88
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 8.1 4.1 198 8.5 7.1 120
DIVIDE PEAK 8800 10.1 9.2 110 10.8 10.0 108
OLD BATTLE 10000 16.7 14.6 114 17.8 16.0 111
SANDSTONE RS 8150 6.0 5.3 113 11.1 8.9 125
WHISKEY PARK 8950 13.4 11.1 121 13.5 13.2 102
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Basin wide percent of average 123 112
UPPER GREEN RIVER
BIG SANDY OPENING 9100 7.2 6.9 104 7.1 6.6 108
BLIND BULL SUM 8650 12.0 13.2 91 10.1 11.1 91
EAST RIM DIVIDE 7930 5.7 5.9 97 6.0 5.8 103
ELKHART PARK G.S. 9400 6.5 6.3 103 6.9 6.7 103
GROS VENTRE SUMMIT 8775 6.5 6.9 94 5.9 6.4 92
KENDALL R.S. 7740 7.5 6.7 112 7.7 6.9 112
LOOMIS PARK 8240 8.8 8.0 110 9.0 8.3 108
NEW FORK LAKE 8340 5.6 5.4 104 5.3 5.9 90
SNIDER BASIN 8250 6.6 6.9 96 6.6 7.9 84
SPRING CREEK DIVIDE 9000 10.6 12.5 85 10.4 13.0 80
TRIPLE PEAK 8500 10.8 11.9 91 11.7 11.2 104
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Basin wide percent of average 97 97
LOWER GREEN RIVER
HAMS FORK 7840 5.5 5.5 100 5.3 5.8 91
HEWINTA 9500 -M 4.1 * -M 7.0 *
HICKERSON PARK 9150 2.9 2.9 100 5.0 4.2 119
HOLE-IN-ROCK 9150 3.2 2.7 119 4.1 3.9 105
INDIAN CREEK 9425 11.5 12.5 92 10.2 12.2 84
KELLEY R.S. 8180 7.6 7.6 100 8.5 10.1 84
STEEL CREEK PARK 10100 5.7 6.7 85 6.2 7.6 82
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Basin wide percent of average 96 90
UPPER BEAR RIVER
BUG LAKE 7950 9.2 8.3 111 9.8 9.2 107
HAYDEN FORK 9400 5.8 6.3 92 17.7 10.0 177
KELLEY R.S. 8180 7.6 7.6 100 8.5 10.1 84
LILY LAKE 9050 5.6 5.5 102 6.9 8.6 80
MONTE CRISTO 8960 11.7 11.0 106 11.8 12.1 98
SALT RIVER SUMMIT 7600 6.8 5.4 126 7.5 9.0 83
TRIAL LAKE 9960 10.7 10.5 102 12.0 11.2 107
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Basin wide percent of average 105 106
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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.