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 TUESDAY: JANUARY 19 , 1999
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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 10.7 121 15.3 14.2 108
COTTONWOOD CREEK 7600 11.6 12.1 96 14.7 15.0 98
GRANITE CREEK 6770 9.9 10.4 95 11.9 14.9 80
GRASSY LAKE 7265 22.1 19.6 113 22.8 23.0 99
GROS VENTRE SUMMIT 8775 7.7 9.1 85 8.0 10.1 79
LEWIS LAKE DIVIDE 7860 20.9 19.3 108 22.5 23.4 96
PHILLIPS BENCH 8200 16.0 16.3 98 16.4 18.4 89
SALT RIVER SUMMIT 7600 7.1 7.5 95 9.3 10.7 87
SNAKE RIVER STATION 6920 12.0 10.6 113 14.8 16.2 91
SPRING CREEK DIVIDE 9000 14.5 15.5 94 14.8 16.8 88
THUMB DIVIDE 7980 12.4 9.8 127 12.6 13.3 95
TOGWOTEE PASS 9580 -M 14.6 * 17.6 17.5 101
TWO OCEAN PLATEAU 9360 21.3 16.0 133 18.8 19.6 96
WILLOW CREEK 8450 15.5 17.8 87 20.7 19.8 105
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Basin wide percent of average 105 95
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 17.2 14.2 121 15.5 10.6 146
BLACK BEAR 7950 26.5 20.9 127 23.0 22.6 102
CANYON 7940 10.5 7.2 146 11.6 8.6 135
FISHER CREEK 9100 25.1 20.8 121 22.4 21.0 107
MADISON PLATEAU 7750 -M 13.7 * 17.1 15.0 114
NORTHEAST ENTRANCE 7350 7.6 5.5 138 9.5 7.3 130
PARKER PEAK 9400 14.7 12.8 115 -M 9.3 *
SYLVAN LAKE 8420 16.3 13.3 123 18.8 11.8 159
THUMB DIVIDE 7980 12.4 9.8 127 12.6 13.3 95
TWO OCEAN PLATEAU 9360 21.3 16.0 133 18.8 19.6 96
WHISKEY CREEK 6800 11.2 9.5 118 13.7 12.4 110
WHITE MILL 8700 16.2 14.7 110 14.8 16.6 89
WOLVERINE 7650 10.4 6.8 153 8.5 7.8 109
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Basin wide percent of average 125 112
WIND RIVER
BURROUGHS CREEK 8750 10.4 9.1 114 11.3 10.0 113
COLD SPRINGS 9630 5.9 5.3 111 7.5 6.3 119
DEER PARK 9700 8.1 -M * -M -M *
HOBBS PARK 10100 9.1 9.2 99 9.2 8.2 112
LITTLE WARM 9620 7.9 6.4 123 9.0 7.9 114
SOUTH PASS 9040 9.2 10.2 90 10.7 9.6 111
ST. LAWRENCE ALT 8620 4.1 4.2 98 6.8 5.8 117
TOGWOTEE PASS 9580 -M 14.6 * 17.6 17.5 101
TOWNSEND CREEK 8700 4.9 5.5 89 7.5 7.0 107
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Basin wide percent of average 103 110
BIGHORN BASIN
BALD MTN. 9375 13.2 12.4 106 12.5 10.4 120
BEAR TRAP MEADOW 7900 4.0 4.3 93 6.8 4.9 139
BLACKWATER 9780 18.8 12.4 152 16.4 10.8 152
BONE SPRINGS DIV 9350 10.1 9.5 106 10.4 8.4 124
EVENING STAR 9200 21.9 16.0 137 22.7 13.4 169
GRAVE SPRINGS 8550 4.6 5.5 84 7.6 5.9 129
KIRWIN 9550 7.7 6.1 126 9.0 6.1 148
MARQUETTE 8760 5.4 4.6 117 6.3 5.3 119
MIDDLE POWDER 7760 4.8 7.0 69 10.9 7.0 156
OWL CREEK 8975 3.6 2.5 144 4.4 3.4 129
POWDER RIVER PASS 9480 7.8 6.2 126 9.9 6.9 143
SHELL CREEK 9580 11.3 9.2 123 10.4 7.9 132
SYLVAN LAKE 8420 16.3 13.3 123 18.8 11.8 159
SYLVAN ROAD 8120 11.0 7.4 149 12.9 9.8 132
TIMBER CREEK 7950 3.5 3.1 113 5.4 3.8 142
YOUNTS PEAK 8350 13.5 10.9 124 11.7 9.9 118
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Basin wide percent of average 121 140
SHOSHONE RIVER
BLACKWATER 9780 18.8 12.4 152 16.4 10.8 152
EVENING STAR 9200 21.9 16.0 137 22.7 13.4 169
KIRWIN 9550 7.7 6.1 126 9.0 6.1 148
MARQUETTE 8760 5.4 4.6 117 6.3 5.3 119
SYLVAN LAKE 8420 16.3 13.3 123 18.8 11.8 159
SYLVAN ROAD 8120 11.0 7.4 149 12.9 9.8 132
YOUNTS PEAK 8350 13.5 10.9 124 11.7 9.9 118
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Basin wide percent of average 134 146
POWDER-TONGUE
BEAR TRAP MEADOW 7900 4.0 4.3 93 6.8 4.9 139
BIG GOOSE 7990 3.6 -M * 6.5 -M *
BONE SPRINGS DIV 9350 10.1 9.5 106 10.4 8.4 124
BURGESS JUNCTION 7880 5.1 6.8 75 7.1 6.5 109
CLOUD PEAK RESERVOIR 9860 9.5 7.0 136 8.4 7.3 115
DOME LAKE 8880 5.3 7.9 67 7.4 7.9 94
GRAVE SPRINGS 8550 4.6 5.5 84 7.6 5.9 129
HANSEN SAWMILL 8760 3.4 4.1 83 5.6 4.5 124
MIDDLE POWDER 7760 4.8 7.0 69 10.9 7.0 156
POWDER RIVER PASS 9480 7.8 6.2 126 9.9 6.9 143
SUCKER CREEK 8880 6.5 6.5 100 8.7 7.7 113
TIE CREEK 6870 2.2 -M * 5.7 6.2 92
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Basin wide percent of average 94 121
BELLE FOURCHE
BLIND PARK 6890 4.6 6.4 72 11.7 5.6 209
NORTH RAPID CREEK 6130 3.8 -M * 10.5 -M *
WARREN PEAK 6520 5.7 6.4 89 10.8 4.7 230
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Basin wide percent of average 80 218
UPPER N. PLATTE RIVER
COLUMBINE 9400 11.4 13.5 84 13.3 14.1 94
DIVIDE PEAK 8800 9.9 11.8 84 15.6 14.3 109
ELK RIVER 8700 7.8 10.7 73 13.4 10.9 123
JOE WRIGHT 10120 11.4 12.5 91 16.5 14.4 115
NORTH FRENCH CREEK 10100 16.8 14.2 118 18.3 13.3 138
OLD BATTLE 10000 14.3 18.1 79 20.4 17.2 119
SOUTH BRUSH CREEK 8400 5.6 6.2 90 13.2 10.4 127
TOWER 10500 22.6 25.9 87 22.9 21.0 109
WEBBER SPRINGS 9200 10.1 15.3 66 15.0 15.2 99
WILLOW CREEK PASS 9540 5.3 6.7 79 7.3 7.1 103
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Basin wide percent of average 85 113
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 11.2 14.5 77 13.9 10.6 131
CASPER MTN. 7900 4.9 8.5 58 10.5 8.0 131
DEADMAN HILL 10220 10.7 9.9 108 11.5 9.1 126
DEER PARK 9700 8.1 -M * -M -M *
LAPRELE CREEK 8320 1.6 5.8 28 8.2 6.6 124
RENO HILL 8400 6.6 7.5 88 11.1 10.7 104
ROACH 9700 9.3 9.7 96 12.1 12.5 97
SAND LAKE 10080 18.4 18.8 98 18.0 11.5 157
SOUTH PASS 9040 9.2 10.2 90 10.7 9.6 111
WINDY PEAK 7840 2.4 3.9 62 8.2 5.1 161
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Basin wide percent of average 84 124
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 5.9 6.4 92 10.2 9.5 107
DIVIDE PEAK 8800 9.9 11.8 84 15.6 14.3 109
OLD BATTLE 10000 14.3 18.1 79 20.4 17.2 119
SANDSTONE RS 8150 6.0 8.1 74 12.2 11.5 106
WHISKEY PARK 8950 13.3 16.2 82 17.9 16.6 108
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Basin wide percent of average 82 110
UPPER GREEN RIVER
BIG SANDY OPENING 9100 8.5 8.2 104 8.0 10.3 78
BLIND BULL SUM 8650 14.8 16.6 89 12.2 14.3 85
EAST RIM DIVIDE 7930 6.9 7.8 88 7.4 9.6 77
ELKHART PARK G.S. 9400 6.9 7.8 88 7.5 10.1 74
GROS VENTRE SUMMIT 8775 7.7 9.1 85 8.0 10.1 79
KENDALL R.S. 7740 7.6 8.5 89 8.3 9.8 85
LOOMIS PARK 8240 9.2 9.8 94 10.7 12.0 89
NEW FORK LAKE 8340 6.1 6.6 92 6.6 9.2 72
SNIDER BASIN 8250 7.6 8.4 90 8.3 9.6 86
SPRING CREEK DIVIDE 9000 14.5 15.5 94 14.8 16.8 88
TRIPLE PEAK 8500 14.0 14.8 95 15.8 19.7 80
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Basin wide percent of average 92 82
LOWER GREEN RIVER
HAMS FORK 7840 5.6 6.7 84 5.6 8.5 66
HEWINTA 9500 4.5 5.4 83 7.0 7.6 92
HICKERSON PARK 9150 2.8 3.1 90 5.6 5.5 102
HOLE-IN-ROCK 9150 3.7 2.8 132 6.2 5.5 113
INDIAN CREEK 9425 13.2 15.5 85 11.5 15.9 72
KELLEY R.S. 8180 7.9 9.1 87 9.6 11.9 81
STEEL CREEK PARK 10100 6.5 8.8 74 8.6 7.8 110
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Basin wide percent of average 86 86
UPPER BEAR RIVER
BUG LAKE 7950 7.0 11.4 61 8.5 11.4 75
HAYDEN FORK 9400 6.5 9.1 71 9.7 10.6 92
KELLEY R.S. 8180 7.9 9.1 87 9.6 11.9 81
LILY LAKE 9050 -M 7.4 * -M 8.5 *
MONTE CRISTO 8960 10.4 15.0 69 13.0 14.7 88
SALT RIVER SUMMIT 7600 7.1 7.5 95 9.3 10.7 87
TRIAL LAKE 9960 7.3 14.1 52 8.4 13.4 63
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Basin wide percent of average 70 80
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-M = Missing data
* = Data may not provide a valid measure of conditions.
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.