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 WEDNESDAY: JANUARY 14 , 1998
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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 10.8 9.9 109 13.0 13.3 98
COTTONWOOD CREEK 7600 10.4 11.3 92 11.9 14.2 84
GRANITE CREEK 6770 9.4 9.6 98 11.6 14.1 82
GRASSY LAKE 7265 18.5 18.2 102 19.7 21.6 91
GROS VENTRE SUMMIT 8775 5.8 8.6 67 7.1 9.5 75
LEWIS LAKE DIVIDE 7860 16.6 17.9 93 18.8 22.0 85
PHILLIPS BENCH 8200 14.4 15.0 96 15.1 17.2 88
SALT RIVER SUMMIT 7600 8.1 6.9 117 10.0 10.1 99
SNAKE RIVER STATION 6920 10.0 9.8 102 12.9 15.2 85
SPRING CREEK DIVIDE 9000 11.5 14.5 79 11.7 15.9 74
THUMB DIVIDE 7980 9.2 9.2 100 10.6 12.5 85
TOGWOTEE PASS 9580 11.9 13.7 87 13.7 16.4 84
TWO OCEAN PLATEAU 9360 17.0 15.1 113 16.6 18.4 90
WILLOW CREEK 8450 13.7 16.5 83 16.4 18.6 88
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Basin wide percent of average 95 86
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 12.5 13.5 93 10.7 10.0 107
BLACK BEAR 7950 21.7 19.5 111 20.6 21.1 98
CANYON 7940 7.4 6.7 110 7.9 8.2 96
FISHER CREEK 9100 18.3 19.5 94 16.4 19.6 84
MADISON PLATEAU 7750 11.4 12.8 89 12.9 14.0 92
NORTHEAST ENTRANCE 7350 4.0 5.1 78 8.0 6.8 118
PARKER PEAK 9400 11.2 12.3 91 9.7 8.8 110
SYLVAN LAKE 8420 9.4 12.7 74 11.8 11.2 105
THUMB DIVIDE 7980 9.2 9.2 100 10.6 12.5 85
TWO OCEAN PLATEAU 9360 17.0 15.1 113 16.6 18.4 90
WHISKEY CREEK 6800 7.7 8.9 87 10.2 11.7 87
WHITE MILL 8700 14.0 13.9 101 13.2 15.5 85
WOLVERINE 7650 6.3 6.4 98 7.1 7.4 96
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Basin wide percent of average 96 94
WIND RIVER
BURROUGHS CREEK 8750 9.6 8.6 112 10.5 9.4 112
COLD SPRINGS 9630 6.0 5.0 120 6.7 6.1 110
DEER PARK 9700 -M -M * 11.5 -M *
HOBBS PARK 10100 8.4 8.8 95 7.8 7.9 99
LITTLE WARM 9620 5.6 6.0 93 7.4 7.6 97
SOUTH PASS 9040 8.8 9.7 91 10.0 9.2 109
ST. LAWRENCE ALT 8620 6.4 4.0 160 6.1 5.5 111
TOGWOTEE PASS 9580 11.9 13.7 87 13.7 16.4 84
TOWNSEND CREEK 8700 6.6 5.2 127 7.8 6.6 118
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Basin wide percent of average 104 102
BIGHORN BASIN
BALD MTN. 9375 11.2 11.9 94 10.0 10.0 100
BEAR TRAP MEADOW 7900 2.9 4.2 69 3.7 4.8 77
BLACKWATER 9780 13.5 11.8 114 11.7 10.2 115
BONE SPRINGS DIV 9350 9.0 9.1 99 9.5 7.9 120
EVENING STAR 9200 14.5 15.2 95 15.8 12.7 124
GRAVE SPRINGS 8550 3.4 -M * 4.1 5.6 73
KIRWIN 9550 8.6 5.9 146 9.5 5.9 161
MARQUETTE 8760 8.1 4.5 180 8.4 5.2 162
MIDDLE POWDER 7760 4.1 6.7 61 5.1 6.8 75
OWL CREEK 8975 3.8 2.4 158 3.7 3.2 116
POWDER RIVER PASS 9480 5.1 5.9 86 6.0 6.5 92
SHELL CREEK 9580 7.7 8.8 88 6.1 7.4 82
SYLVAN LAKE 8420 9.4 12.7 74 11.8 11.2 105
SYLVAN ROAD 8120 6.3 6.9 91 9.9 9.3 106
TIMBER CREEK 7950 5.4 3.0 180 6.7 3.7 181
YOUNTS PEAK 8350 9.9 10.4 95 9.8 9.4 104
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Basin wide percent of average 100 110
SHOSHONE RIVER
BLACKWATER 9780 13.5 11.8 114 11.7 10.2 115
EVENING STAR 9200 14.5 15.2 95 15.8 12.7 124
KIRWIN 9550 8.6 5.9 146 9.5 5.9 161
MARQUETTE 8760 8.1 4.5 180 8.4 5.2 162
SYLVAN LAKE 8420 9.4 12.7 74 11.8 11.2 105
SYLVAN ROAD 8120 6.3 6.9 91 9.9 9.3 106
YOUNTS PEAK 8350 9.9 10.4 95 9.8 9.4 104
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Basin wide percent of average 104 120
POWDER-TONGUE
BEAR TRAP MEADOW 7900 2.9 4.2 69 3.7 4.8 77
BONE SPRINGS DIV 9350 9.0 9.1 99 9.5 7.9 120
BURGESS JUNCTION 7880 5.9 6.4 92 7.2 6.2 116
CLOUD PEAK RESERVOIR 9860 7.2 6.6 109 7.9 6.9 114
DOME LAKE 8880 6.1 7.5 81 8.1 7.7 105
GRAVE SPRINGS 8550 3.4 -M * 4.1 5.6 73
HANSEN SAWMILL 8760 4.1 3.9 105 4.9 4.4 111
MIDDLE POWDER 7760 4.1 6.7 61 5.1 6.8 75
POWDER RIVER PASS 9480 5.1 5.9 86 6.0 6.5 92
SUCKER CREEK 8880 6.7 6.1 110 8.4 7.4 114
TIE CREEK 6870 4.6 -M * 7.9 6.0 132
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Basin wide percent of average 91 104
BELLE FOURCHE
BLIND PARK 6890 4.7 6.1 77 7.0 5.3 132
NORTH RAPID CREEK 6130 4.8 -M * 5.6 -M *
WARREN PEAK 6520 4.7 6.1 77 5.5 4.4 125
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Basin wide percent of average 77 129
UPPER N. PLATTE RIVER
COLUMBINE 9400 9.1 12.6 72 10.4 13.1 79
DIVIDE PEAK 8800 7.0 11.3 62 9.8 13.7 72
ELK RIVER 8700 6.2 10.1 61 8.0 10.4 77
JOE WRIGHT 10120 10.4 12.0 87 12.7 13.7 93
NORTH FRENCH CREEK 10100 11.7 13.4 87 12.4 12.7 98
OLD BATTLE 10000 13.0 17.2 76 17.1 16.4 104
SOUTH BRUSH CREEK 8400 3.9 5.8 67 4.8 10.2 47
TOWER 10500 18.4 24.4 75 18.4 19.8 93
WEBBER SPRINGS 9200 9.4 14.5 65 12.7 14.6 87
WILLOW CREEK PASS 9540 3.6 6.4 56 3.9 6.8 57
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Basin wide percent of average 73 84
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 7.6 13.9 55 9.2 10.1 91
CASPER MTN. 7900 7.5 8.2 91 7.6 7.7 99
DEADMAN HILL 10220 8.0 9.4 85 7.5 8.6 87
DEER PARK 9700 -M -M * 11.5 -M *
LAPRELE CREEK 8320 4.4 5.5 80 5.6 6.1 92
RENO HILL 8400 7.3 7.2 101 6.6 10.4 63
ROACH 9700 6.9 9.2 75 8.9 11.9 75
SAND LAKE 10080 12.3 17.8 69 11.7 10.9 107
SOUTH PASS 9040 8.8 9.7 91 10.0 9.2 109
WINDY PEAK 7840 3.4 3.7 92 4.5 4.9 92
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Basin wide percent of average 78 90
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 3.4 6.0 57 7.0 8.9 79
DIVIDE PEAK 8800 7.0 11.3 62 9.8 13.7 72
OLD BATTLE 10000 13.0 17.2 76 17.1 16.4 104
SANDSTONE RS 8150 5.8 7.6 76 8.9 10.8 82
WHISKEY PARK 8950 11.1 15.3 73 13.1 15.2 86
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Basin wide percent of average 70 86
UPPER GREEN RIVER
BIG SANDY OPENING 9100 5.6 7.7 73 5.2 9.8 53
BLIND BULL SUM 8650 13.4 15.6 86 10.8 13.4 81
EAST RIM DIVIDE 7930 5.5 7.3 75 5.8 9.1 64
ELKHART PARK G.S. 9400 5.9 7.3 81 6.4 9.6 67
GROS VENTRE SUMMIT 8775 5.8 8.6 67 7.1 9.5 75
KENDALL R.S. 7740 7.9 7.9 100 8.3 9.3 89
LOOMIS PARK 8240 7.5 9.1 82 8.1 11.3 72
NEW FORK LAKE 8340 5.0 6.1 82 5.2 8.7 60
SNIDER BASIN 8250 5.9 7.8 76 6.5 9.1 71
SPRING CREEK DIVIDE 9000 11.5 14.5 79 11.7 15.9 74
TRIPLE PEAK 8500 12.0 13.8 87 12.4 18.6 67
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Basin wide percent of average 81 70
LOWER GREEN RIVER
HAMS FORK 7840 5.8 6.2 94 5.2 8.0 65
HEWINTA 9500 6.1 5.0 122 8.5 7.2 118
HICKERSON PARK 9150 5.0 3.0 167 7.7 5.3 145
HOLE-IN-ROCK 9150 3.9 2.7 144 6.7 5.3 126
INDIAN CREEK 9425 12.1 14.6 83 9.6 15.0 64
KELLEY R.S. 8180 8.3 8.5 98 8.8 11.2 79
STEEL CREEK PARK 10100 7.6 8.4 90 10.1 7.6 133
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Basin wide percent of average 101 95
UPPER BEAR RIVER
BUG LAKE 7950 10.7 10.8 99 11.3 10.9 104
HAYDEN FORK 9400 6.4 8.6 74 10.5 10.1 104
KELLEY R.S. 8180 8.3 8.5 98 8.8 11.2 79
LILY LAKE 9050 7.0 7.1 99 9.1 8.2 111
MONTE CRISTO 8960 14.4 14.1 102 13.5 14.1 96
SALT RIVER SUMMIT 7600 8.1 6.9 117 10.0 10.1 99
TRIAL LAKE 9960 9.2 13.4 69 10.2 12.8 80
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Basin wide percent of average 92 95
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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.