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 SUNDAY: FEBRUARY 8 , 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 13.5 13.3 102 15.8 17.3 91
COTTONWOOD CREEK 7600 15.1 15.2 99 16.3 18.6 88
GRANITE CREEK 6770 13.2 13.1 101 15.3 18.2 84
GRASSY LAKE 7265 24.4 26.4 92 25.2 27.9 90
GROS VENTRE SUMMIT 8775 7.5 11.2 67 8.7 12.2 71
LEWIS LAKE DIVIDE 7860 21.6 24.6 88 23.5 28.4 83
PHILLIPS BENCH 8200 19.6 20.7 95 19.8 22.5 88
SALT RIVER SUMMIT 7600 10.8 9.8 110 12.8 13.0 98
SNAKE RIVER STATION 6920 12.9 13.5 96 15.9 19.7 81
SPRING CREEK DIVIDE 9000 16.0 19.5 82 16.2 20.6 79
THUMB DIVIDE 7980 11.3 12.2 93 12.6 16.2 78
TOGWOTEE PASS 9580 17.7 17.9 99 17.5 21.3 82
TWO OCEAN PLATEAU 9360 20.4 19.4 105 20.7 23.8 87
WILLOW CREEK 8450 18.8 22.4 84 22.3 24.3 92
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Basin wide percent of average 93 85
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 15.6 17.0 92 13.6 12.9 105
BLACK BEAR 7950 27.3 26.4 103 25.6 28.3 90
CANYON 7940 9.7 8.9 109 11.1 10.5 106
FISHER CREEK 9100 23.2 25.8 90 20.7 26.1 79
MADISON PLATEAU 7750 14.3 17.3 83 15.8 18.4 86
NORTHEAST ENTRANCE 7350 5.6 6.9 81 9.6 8.8 109
PARKER PEAK 9400 13.8 15.3 90 12.0 11.2 107
SYLVAN LAKE 8420 12.0 15.9 75 14.6 14.0 104
THUMB DIVIDE 7980 11.3 12.2 93 12.6 16.2 78
TWO OCEAN PLATEAU 9360 20.4 19.4 105 20.7 23.8 87
WHISKEY CREEK 6800 9.8 12.0 82 12.4 15.3 81
WHITE MILL 8700 17.6 18.1 97 16.3 20.4 80
WOLVERINE 7650 8.1 8.5 95 8.3 9.4 88
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Basin wide percent of average 93 90
WIND RIVER
BURROUGHS CREEK 8750 11.6 11.2 104 12.7 12.0 106
COLD SPRINGS 9630 6.8 6.1 111 7.6 7.3 104
DEER PARK 9700 -M -M * 12.8 -M *
HOBBS PARK 10100 9.5 10.5 90 8.3 9.7 86
LITTLE WARM 9620 7.4 7.7 96 9.2 9.4 98
SOUTH PASS 9040 9.7 12.0 81 10.8 11.6 93
ST. LAWRENCE ALT 8620 6.6 5.2 127 6.6 6.7 99
TOGWOTEE PASS 9580 17.7 17.9 99 17.5 21.3 82
TOWNSEND CREEK 8700 7.0 6.7 104 8.5 8.3 102
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Basin wide percent of average 99 94
BIGHORN BASIN
BALD MTN. 9375 13.5 14.7 92 12.0 12.3 98
BEAR TRAP MEADOW 7900 3.6 5.1 71 4.5 5.6 80
BLACKWATER 9780 16.0 15.0 107 14.1 13.0 108
BONE SPRINGS DIV 9350 10.6 11.3 94 11.0 10.0 110
EVENING STAR 9200 17.8 19.1 93 19.3 16.2 119
GRAVE SPRINGS 8550 4.9 -M * 5.3 6.7 79
KIRWIN 9550 9.3 7.0 133 10.4 7.2 144
MARQUETTE 8760 8.9 5.5 162 9.2 6.1 151
MIDDLE POWDER 7760 5.9 8.2 72 6.4 8.2 78
OWL CREEK 8975 4.2 3.0 140 4.3 4.1 105
POWDER RIVER PASS 9480 6.7 7.5 89 7.6 8.2 93
SHELL CREEK 9580 9.4 10.9 86 7.4 9.3 80
SYLVAN LAKE 8420 12.0 15.9 75 14.6 14.0 104
SYLVAN ROAD 8120 7.9 9.2 86 11.6 11.7 99
TIMBER CREEK 7950 5.5 4.0 138 6.9 4.4 157
YOUNTS PEAK 8350 11.9 12.9 92 11.8 12.0 98
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Basin wide percent of average 96 105
SHOSHONE RIVER
BLACKWATER 9780 16.0 15.0 107 14.1 13.0 108
EVENING STAR 9200 17.8 19.1 93 19.3 16.2 119
KIRWIN 9550 9.3 7.0 133 10.4 7.2 144
MARQUETTE 8760 8.9 5.5 162 9.2 6.1 151
SYLVAN LAKE 8420 12.0 15.9 75 14.6 14.0 104
SYLVAN ROAD 8120 7.9 9.2 86 11.6 11.7 99
YOUNTS PEAK 8350 11.9 12.9 92 11.8 12.0 98
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Basin wide percent of average 99 113
POWDER-TONGUE
BEAR TRAP MEADOW 7900 3.6 5.1 71 4.5 5.6 80
BONE SPRINGS DIV 9350 10.6 11.3 94 11.0 10.0 110
BURGESS JUNCTION 7880 6.7 8.1 83 8.0 7.5 107
CLOUD PEAK RESERVOIR 9860 8.3 8.8 94 9.0 8.7 103
DOME LAKE 8880 6.9 9.6 72 9.0 9.1 99
GRAVE SPRINGS 8550 4.9 -M * 5.3 6.7 79
HANSEN SAWMILL 8760 4.7 4.9 96 5.5 5.3 104
MIDDLE POWDER 7760 5.9 8.2 72 6.4 8.2 78
POWDER RIVER PASS 9480 6.7 7.5 89 7.6 8.2 93
SUCKER CREEK 8880 7.9 8.1 98 9.6 9.1 105
TIE CREEK 6870 5.1 -M * 8.6 7.2 119
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Basin wide percent of average 86 99
BELLE FOURCHE
BLIND PARK 6890 5.5 7.7 71 7.8 6.5 120
NORTH RAPID CREEK 6130 5.4 -M * 6.3 -M *
WARREN PEAK 6520 6.1 7.7 79 6.5 5.5 118
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Basin wide percent of average 75 119
UPPER N. PLATTE RIVER
COLUMBINE 9400 15.1 17.1 88 15.9 17.4 91
DIVIDE PEAK 8800 11.7 14.2 82 13.5 16.8 80
ELK RIVER 8700 10.6 13.7 77 11.6 13.3 87
JOE WRIGHT 10120 13.3 14.9 89 16.2 17.4 93
NORTH FRENCH CREEK 10100 18.3 17.1 107 17.8 16.1 111
OLD BATTLE 10000 19.3 22.0 88 23.7 20.7 114
SOUTH BRUSH CREEK 8400 5.6 7.7 73 6.4 11.2 57
TOWER 10500 29.8 31.9 93 24.7 25.6 96
WEBBER SPRINGS 9200 13.6 18.7 73 17.5 17.6 99
WILLOW CREEK PASS 9540 4.3 7.8 55 5.1 8.3 61
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Basin wide percent of average 86 93
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 12.1 17.0 71 13.5 13.0 104
CASPER MTN. 7900 8.8 10.1 87 8.8 9.2 96
DEADMAN HILL 10220 10.2 11.8 86 9.6 11.0 87
DEER PARK 9700 -M -M * 12.8 -M *
LAPRELE CREEK 8320 5.7 7.1 80 6.9 8.0 86
RENO HILL 8400 8.3 8.9 93 7.5 12.2 61
ROACH 9700 9.8 11.8 83 11.7 15.0 78
SAND LAKE 10080 16.9 22.7 74 15.3 13.9 110
SOUTH PASS 9040 9.7 12.0 81 10.8 11.6 93
WINDY PEAK 7840 4.2 4.9 86 5.3 6.2 85
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Basin wide percent of average 81 89
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.7 7.9 85 10.1 11.3 89
DIVIDE PEAK 8800 11.7 14.2 82 13.5 16.8 80
OLD BATTLE 10000 19.3 22.0 88 23.7 20.7 114
SANDSTONE RS 8150 9.5 10.1 94 12.7 13.8 92
WHISKEY PARK 8950 18.9 19.7 96 19.3 20.6 94
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Basin wide percent of average 89 95
UPPER GREEN RIVER
BIG SANDY OPENING 9100 7.5 10.2 74 6.9 12.6 55
BLIND BULL SUM 8650 18.0 20.4 88 13.9 17.9 78
EAST RIM DIVIDE 7930 7.7 10.0 77 7.9 11.7 68
ELKHART PARK G.S. 9400 8.4 9.7 87 8.8 12.4 71
GROS VENTRE SUMMIT 8775 7.5 11.2 67 8.7 12.2 71
KENDALL R.S. 7740 10.6 10.6 100 10.8 12.0 90
LOOMIS PARK 8240 9.9 12.5 79 11.3 14.6 77
NEW FORK LAKE 8340 7.2 8.4 86 7.7 11.2 69
SNIDER BASIN 8250 8.6 10.6 81 9.0 11.7 77
SPRING CREEK DIVIDE 9000 16.0 19.5 82 16.2 20.6 79
TRIPLE PEAK 8500 16.1 18.6 87 16.4 24.0 68
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Basin wide percent of average 83 73
LOWER GREEN RIVER
HAMS FORK 7840 8.4 8.8 95 7.3 10.3 71
HEWINTA 9500 7.6 6.8 112 10.6 8.9 119
HICKERSON PARK 9150 6.8 3.9 174 8.4 6.3 133
HOLE-IN-ROCK 9150 4.9 3.6 136 7.5 6.3 119
INDIAN CREEK 9425 16.9 19.2 88 13.3 19.4 69
KELLEY R.S. 8180 11.3 11.7 97 11.7 14.5 81
STEEL CREEK PARK 10100 10.0 10.4 96 12.8 9.0 142
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Basin wide percent of average 102 96
UPPER BEAR RIVER
BUG LAKE 7950 15.2 13.9 109 15.0 13.6 110
HAYDEN FORK 9400 9.1 11.1 82 13.7 12.7 108
KELLEY R.S. 8180 11.3 11.7 97 11.7 14.5 81
LILY LAKE 9050 9.0 8.8 102 11.1 10.1 110
MONTE CRISTO 8960 20.5 18.6 110 18.4 17.6 105
SALT RIVER SUMMIT 7600 10.8 9.8 110 12.8 13.0 98
TRIAL LAKE 9960 13.8 17.0 81 14.8 16.3 91
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Basin wide percent of average 99 100
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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.