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 SATURDAY: JANUARY 30 , 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 15.4 12.2 126 16.4 16.0 102
COTTONWOOD CREEK 7600 13.9 13.7 101 17.0 17.0 100
GRANITE CREEK 6770 12.2 12.0 102 14.3 16.9 85
GRASSY LAKE 7265 27.0 22.5 120 27.3 25.9 105
GROS VENTRE SUMMIT 8775 9.2 10.4 88 9.4 11.4 82
LEWIS LAKE DIVIDE 7860 25.3 22.3 113 25.8 26.4 98
PHILLIPS BENCH 8200 19.4 18.9 103 19.4 20.8 93
SALT RIVER SUMMIT 7600 8.7 8.8 99 10.9 12.1 90
SNAKE RIVER STATION 6920 14.5 12.1 120 17.9 18.2 98
SPRING CREEK DIVIDE 9000 16.6 17.8 93 17.0 19.0 89
THUMB DIVIDE 7980 14.8 11.2 132 14.6 15.0 97
TOGWOTEE PASS 9580 -M 16.5 * 19.6 19.7 99
TWO OCEAN PLATEAU 9360 23.9 17.9 134 20.8 22.0 95
WILLOW CREEK 8450 19.5 20.5 95 24.5 22.3 110
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Basin wide percent of average 110 97
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 18.6 15.7 118 16.7 11.9 140
BLACK BEAR 7950 31.3 23.9 131 -M 25.9 *
CANYON 7940 12.1 8.1 149 12.9 9.7 133
FISHER CREEK 9100 27.2 23.7 115 23.6 24.0 98
MADISON PLATEAU 7750 -M 15.7 * 19.6 16.9 116
NORTHEAST ENTRANCE 7350 8.5 6.3 135 10.4 8.1 128
PARKER PEAK 9400 16.4 14.1 116 -M 10.3 *
SYLVAN LAKE 8420 18.6 14.7 127 20.9 13.0 161
THUMB DIVIDE 7980 14.8 11.2 132 14.6 15.0 97
TWO OCEAN PLATEAU 9360 23.9 17.9 134 20.8 22.0 95
WHISKEY CREEK 6800 13.3 10.9 122 15.8 14.1 112
WHITE MILL 8700 18.3 16.5 111 16.7 18.9 88
WOLVERINE 7650 11.5 7.7 149 9.9 8.6 115
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Basin wide percent of average 126 112
WIND RIVER
BURROUGHS CREEK 8750 11.7 10.2 115 12.8 11.1 115
COLD SPRINGS 9630 6.5 5.7 114 8.2 6.8 121
DEER PARK 9700 10.2 -M * 13.8 -M *
HOBBS PARK 10100 10.4 9.9 105 10.4 9.1 114
LITTLE WARM 9620 8.6 7.1 121 9.7 8.8 110
SOUTH PASS 9040 11.1 11.1 100 12.6 10.6 119
ST. LAWRENCE ALT 8620 4.5 4.7 96 7.3 6.2 118
TOGWOTEE PASS 9580 -M 16.5 * 19.6 19.7 99
TOWNSEND CREEK 8700 5.5 6.1 90 8.0 7.7 104
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Basin wide percent of average 106 111
BIGHORN BASIN
BALD MTN. 9375 14.1 13.6 104 13.2 11.5 115
BEAR TRAP MEADOW 7900 4.5 4.7 96 7.0 5.3 132
BLACKWATER 9780 20.8 13.8 151 18.2 12.0 152
BONE SPRINGS DIV 9350 10.9 10.4 105 11.2 9.2 122
EVENING STAR 9200 23.7 17.5 135 24.6 15.0 164
GRAVE SPRINGS 8550 4.8 6.0 80 7.8 6.3 124
KIRWIN 9550 8.3 6.5 128 9.6 6.7 143
MARQUETTE 8760 6.1 5.0 122 6.9 5.7 121
MIDDLE POWDER 7760 5.0 7.7 65 10.9 7.7 142
OWL CREEK 8975 4.2 2.8 150 4.9 3.7 132
POWDER RIVER PASS 9480 8.4 6.9 122 10.5 7.7 136
SHELL CREEK 9580 12.1 10.0 121 10.9 8.7 125
SYLVAN LAKE 8420 18.6 14.7 127 20.9 13.0 161
SYLVAN ROAD 8120 12.3 8.3 148 14.4 10.9 132
TIMBER CREEK 7950 3.8 3.5 109 5.6 4.1 137
YOUNTS PEAK 8350 14.8 12.0 123 13.0 11.1 117
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Basin wide percent of average 120 137
SHOSHONE RIVER
BLACKWATER 9780 20.8 13.8 151 18.2 12.0 152
EVENING STAR 9200 23.7 17.5 135 24.6 15.0 164
KIRWIN 9550 8.3 6.5 128 9.6 6.7 143
MARQUETTE 8760 6.1 5.0 122 6.9 5.7 121
SYLVAN LAKE 8420 18.6 14.7 127 20.9 13.0 161
SYLVAN ROAD 8120 12.3 8.3 148 14.4 10.9 132
YOUNTS PEAK 8350 14.8 12.0 123 13.0 11.1 117
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Basin wide percent of average 134 145
POWDER-TONGUE
BEAR TRAP MEADOW 7900 4.5 4.7 96 7.0 5.3 132
BIG GOOSE 7990 3.8 -M * 6.7 -M *
BONE SPRINGS DIV 9350 10.9 10.4 105 11.2 9.2 122
BURGESS JUNCTION 7880 5.3 7.5 71 7.3 7.0 104
CLOUD PEAK RESERVOIR 9860 9.6 7.8 123 8.3 8.0 104
DOME LAKE 8880 5.6 8.8 64 7.4 8.6 86
GRAVE SPRINGS 8550 4.8 6.0 80 7.8 6.3 124
HANSEN SAWMILL 8760 3.7 4.5 82 5.8 4.9 118
MIDDLE POWDER 7760 5.0 7.7 65 10.9 7.7 142
POWDER RIVER PASS 9480 8.4 6.9 122 10.5 7.7 136
SUCKER CREEK 8880 6.8 7.3 93 8.9 8.5 105
TIE CREEK 6870 2.3 -M * 5.9 6.7 88
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Basin wide percent of average 90 114
BELLE FOURCHE
BLIND PARK 6890 5.2 7.1 73 12.2 6.0 203
NORTH RAPID CREEK 6130 4.0 -M * 10.6 -M *
WARREN PEAK 6520 6.0 7.1 85 10.9 5.1 214
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Basin wide percent of average 79 208
UPPER N. PLATTE RIVER
COLUMBINE 9400 13.5 15.4 88 14.8 16.0 93
DIVIDE PEAK 8800 12.9 13.1 98 18.2 15.8 115
ELK RIVER 8700 -M 12.2 * 16.2 12.3 132
JOE WRIGHT 10120 14.3 13.8 104 19.4 16.2 120
NORTH FRENCH CREEK 10100 19.6 15.7 125 20.1 14.8 136
OLD BATTLE 10000 18.3 20.1 91 24.3 19.1 127
SOUTH BRUSH CREEK 8400 5.4 7.0 77 14.7 10.6 139
TOWER 10500 27.7 29.4 94 26.7 23.6 113
WEBBER SPRINGS 9200 12.7 17.1 74 17.8 16.4 109
WILLOW CREEK PASS 9540 7.8 7.2 108 8.9 7.7 116
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Basin wide percent of average 95 119
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 13.3 15.8 84 15.7 11.9 132
CASPER MTN. 7900 6.8 9.3 73 12.2 8.5 144
DEADMAN HILL 10220 11.5 10.9 106 13.3 10.1 132
DEER PARK 9700 10.2 -M * 13.8 -M *
LAPRELE CREEK 8320 2.8 6.5 43 9.8 7.4 132
RENO HILL 8400 8.8 8.2 107 13.1 11.3 116
ROACH 9700 12.2 10.8 113 15.0 13.9 108
SAND LAKE 10080 21.6 20.8 104 20.5 12.8 160
SOUTH PASS 9040 11.1 11.1 100 12.6 10.6 119
WINDY PEAK 7840 3.4 4.4 77 9.1 5.8 157
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Basin wide percent of average 94 131
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 7.5 7.2 104 12.4 10.7 116
DIVIDE PEAK 8800 12.9 13.1 98 18.2 15.8 115
OLD BATTLE 10000 18.3 20.1 91 24.3 19.1 127
SANDSTONE RS 8150 7.9 9.1 87 14.6 13.0 112
WHISKEY PARK 8950 16.7 18.1 92 20.5 19.5 105
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Basin wide percent of average 94 115
UPPER GREEN RIVER
BIG SANDY OPENING 9100 10.4 9.4 111 9.8 11.7 84
BLIND BULL SUM 8650 17.8 18.6 96 14.8 16.4 90
EAST RIM DIVIDE 7930 8.5 9.1 93 8.9 10.9 82
ELKHART PARK G.S. 9400 8.6 8.7 99 9.2 11.5 80
GROS VENTRE SUMMIT 8775 9.2 10.4 88 9.4 11.4 82
KENDALL R.S. 7740 9.1 9.7 94 9.7 11.1 87
LOOMIS PARK 8240 9.8 11.3 87 12.8 13.5 95
NEW FORK LAKE 8340 7.5 7.7 97 7.7 10.4 74
SNIDER BASIN 8250 8.8 9.7 91 9.4 10.9 86
SPRING CREEK DIVIDE 9000 16.6 17.8 93 17.0 19.0 89
TRIPLE PEAK 8500 15.9 17.0 94 17.8 22.2 80
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Basin wide percent of average 94 85
LOWER GREEN RIVER
HAMS FORK 7840 7.3 7.9 92 7.0 9.6 73
HEWINTA 9500 5.8 6.1 95 9.1 8.3 110
HICKERSON PARK 9150 3.8 3.4 112 6.6 5.9 112
HOLE-IN-ROCK 9150 4.1 3.1 132 7.0 5.9 119
INDIAN CREEK 9425 16.0 17.5 91 13.8 17.9 77
KELLEY R.S. 8180 9.6 10.5 91 11.3 13.4 84
STEEL CREEK PARK 10100 8.6 9.6 90 10.6 8.5 125
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Basin wide percent of average 95 94
UPPER BEAR RIVER
BUG LAKE 7950 10.6 12.7 83 11.3 12.6 90
HAYDEN FORK 9400 8.4 10.0 84 12.1 11.7 103
KELLEY R.S. 8180 9.6 10.5 91 11.3 13.4 84
LILY LAKE 9050 8.1 8.0 101 11.4 9.4 121
MONTE CRISTO 8960 14.5 16.9 86 16.1 16.2 99
SALT RIVER SUMMIT 7600 8.7 8.8 99 10.9 12.1 90
TRIAL LAKE 9960 10.7 15.5 69 11.9 14.9 80
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Basin wide percent of average 86 94
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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.