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 FRIDAY: FEBRUARY 4 , 2005
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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 8.9 13.1 68 10.5 15.3 69
COTTONWOOD CREEK 7600 10.6 14.6 73 13.0 19.2 68
GRANITE CREEK 6770 9.2 12.8 72 11.7 14.1 83
GRASSY LAKE 7265 15.8 23.7 67 17.2 25.6 67
GROS VENTRE SUMMIT 8750 8.0 9.7 82 7.8 8.9 88
LEWIS LAKE DIVIDE 7850 15.1 23.8 63 15.6 25.6 61
PHILLIPS BENCH 8200 15.7 19.1 82 16.3 20.0 82
SALT RIVER SUMMIT 7600 8.3 9.5 87 11.4 12.9 88
SNAKE RIVER STATION 6920 7.7 13.0 59 10.0 16.0 62
SPRING CREEK DIVIDE 9000 16.4 17.9 92 15.8 18.8 84
THUMB DIVIDE 7980 9.6 12.2 79 9.4 13.1 72
TOGWOTEE PASS 9580 11.4 17.3 66 11.5 17.2 67
TWO OCEAN PLATEAU 9240 15.7 19.4 81 12.9 19.0 68
WILLOW CREEK 8450 14.7 20.7 71 17.7 22.4 79
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Basin wide percent of average 74 73
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 9.9 16.6 60 8.7 14.3 61
BLACK BEAR 8170 23.8 26.4 90 22.5 26.9 84
CANYON 8090 6.3 9.2 68 7.6 11.0 69
FISHER CREEK 9100 16.7 24.4 68 16.5 25.2 65
MADISON PLATEAU 7750 -M 16.7 * -M 18.0 *
NORTHEAST ENTRANCE 7350 3.6 7.9 46 4.9 9.1 54
PARKER PEAK 9400 10.6 15.1 70 8.8 11.4 77
SYLVAN LAKE 8420 10.0 15.5 65 11.6 15.1 77
THUMB DIVIDE 7980 9.6 12.2 79 9.4 13.1 72
TWO OCEAN PLATEAU 9240 15.7 19.4 81 12.9 19.0 68
WHISKEY CREEK 6800 9.6 11.4 84 12.8 14.2 90
WHITE MILL 8700 10.9 16.5 66 10.5 18.8 56
WOLVERINE 7650 5.0 8.8 57 5.1 9.4 54
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Basin wide percent of average 72 70
WIND RIVER
BURROUGHS CREEK 8750 6.5 10.4 62 6.7 11.6 58
COLD SPRINGS 9630 5.7 6.1 93 6.1 7.2 85
DEER PARK 9700 17.0 12.1 140 19.1 14.9 128
HOBBS PARK 10100 11.4 10.0 114 10.4 8.4 124
LITTLE WARM 9370 5.6 8.0 70 6.2 9.3 67
SOUTH PASS 9040 14.8 11.6 128 15.7 12.5 126
ST. LAWRENCE ALT 8620 5.4 4.9 110 6.5 5.8 112
TOGWOTEE PASS 9580 11.4 17.3 66 11.5 17.2 67
TOWNSEND CREEK 8700 8.0 5.8 138 10.9 7.5 145
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Basin wide percent of average 100 99
BIGHORN BASIN
BALD MTN. 9380 10.1 13.7 74 9.6 12.0 80
BEAR TRAP MEADOW 8200 2.7 3.6 75 4.8 5.6 86
BLACKWATER 9780 9.5 17.0 56 9.0 14.5 62
BONE SPRINGS DIV 9350 9.0 10.8 83 8.9 9.8 91
EVENING STAR 9200 11.9 20.3 59 13.2 18.1 73
GRAVE SPRINGS 8550 4.1 5.9 69 5.7 6.6 86
KIRWIN 9550 4.7 7.8 60 5.3 7.8 68
MARQUETTE 8760 2.4 6.0 40 3.9 6.3 62
MIDDLE POWDER 7760 4.1 7.4 55 5.2 8.4 62
OWL CREEK 8975 2.6 3.5 74 2.8 3.8 74
POWDER RIVER PASS 9480 7.6 7.4 103 8.4 8.5 99
SHELL CREEK 9580 8.9 10.1 88 7.8 9.5 82
SYLVAN LAKE 8420 10.0 15.5 65 11.6 15.1 77
SYLVAN ROAD 7120 5.6 9.1 62 8.0 13.5 59
TIMBER CREEK 7950 1.2 3.7 32 1.9 4.6 41
YOUNTS PEAK 8350 7.1 12.3 58 7.2 11.6 62
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Basin wide percent of average 66 73
SHOSHONE RIVER
BLACKWATER 9780 9.5 17.0 56 9.0 14.5 62
EVENING STAR 9200 11.9 20.3 59 13.2 18.1 73
KIRWIN 9550 4.7 7.8 60 5.3 7.8 68
MARQUETTE 8760 2.4 6.0 40 3.9 6.3 62
SYLVAN LAKE 8420 10.0 15.5 65 11.6 15.1 77
SYLVAN ROAD 7120 5.6 9.1 62 8.0 13.5 59
YOUNTS PEAK 8350 7.1 12.3 58 7.2 11.6 62
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Basin wide percent of average 58 67
POWDER-TONGUE
BEAR TRAP MEADOW 8200 2.7 3.6 75 4.8 5.6 86
BIG GOOSE 7990 4.2 6.2 68 5.4 5.8 93
BONE SPRINGS DIV 9350 9.0 10.8 83 8.9 9.8 91
BURGESS JUNCTION 7880 4.7 7.5 63 5.7 8.1 70
CLOUD PEAK RESERVOIR 9860 8.9 8.3 107 7.5 8.4 89
DOME LAKE 8880 6.5 8.1 80 7.2 8.9 81
GRAVE SPRINGS 8550 4.1 5.9 69 5.7 6.6 86
HANSEN SAWMILL 8360 3.6 4.3 84 4.7 5.4 87
MIDDLE POWDER 7760 4.1 7.4 55 5.2 8.4 62
POWDER RIVER PASS 9480 7.6 7.4 103 8.4 8.5 99
SUCKER CREEK 8880 6.6 7.4 89 7.8 9.0 87
TIE CREEK 6870 .2 4.1 5 4.8 6.9 70
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Basin wide percent of average 77 83
BELLE FOURCHE
BLIND PARK 6890 3.3 5.4 61 5.3 8.0 66
COLE CANYON 5910 1.5 4.1 37 4.5 -M *
NORTH RAPID CREEK 6130 2.0 5.2 38 4.2 6.4 66
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Basin wide percent of average 46 66
UPPER N. PLATTE RIVER
COLUMBINE 9160 12.8 17.1 75 14.2 17.1 83
DIVIDE PEAK 8860 14.7 13.2 111 17.5 14.1 124
ELK RIVER 8700 14.0 12.6 111 14.7 13.1 112
JOE WRIGHT 10120 12.6 14.2 89 12.9 16.6 78
NORTH FRENCH CREEK 10130 15.9 18.8 85 15.5 16.8 92
OLD BATTLE 9920 24.4 20.6 118 26.5 23.1 115
SAGE CREEK BASIN 7850 11.0 7.6 145 12.6 8.1 156
SOUTH BRUSH CREEK 8440 6.4 7.7 83 8.2 11.2 73
TOWER 10500 24.1 30.9 78 24.3 26.1 93
WEBBER SPRINGS 9250 17.1 16.6 103 20.0 18.4 109
WILLOW CREEK PASS 9540 10.2 7.7 132 9.6 8.5 113
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Basin wide percent of average 98 102
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 11.6 15.7 74 11.6 14.6 79
CASPER MTN. 7850 7.4 9.2 80 8.5 9.1 93
DEADMAN HILL 10220 10.8 10.8 100 8.6 10.9 79
DEER PARK 9700 17.0 12.1 140 19.1 14.9 128
LAPRELE CREEK 8375 4.6 7.5 61 6.6 8.3 80
RENO HILL 8500 6.0 8.6 70 6.6 9.5 69
ROACH 9700 10.3 11.3 91 12.7 12.0 106
SAND LAKE 10050 14.4 20.4 71 12.9 16.3 79
SOUTH PASS 9040 14.8 11.6 128 15.7 12.5 126
WINDY PEAK 7900 -M 4.7 * -M 7.2 *
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Basin wide percent of average 90 95
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 8.3 8.0 104 11.6 10.2 114
DIVIDE PEAK 8860 14.7 13.2 111 17.5 14.1 124
OLD BATTLE 9920 24.4 20.6 118 26.5 23.1 115
SANDSTONE RS 8150 7.6 10.0 76 13.6 12.8 106
WHISKEY PARK 8950 16.9 19.1 88 18.2 19.8 92
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Basin wide percent of average 101 109
UPPER GREEN RIVER
BIG SANDY OPENING 9080 11.6 9.8 118 11.2 9.2 122
BLIND BULL SUM 8900 12.9 18.9 68 11.3 15.8 72
EAST RIM DIVIDE 7930 5.7 8.8 65 6.7 8.3 81
ELKHART PARK G.S. 9400 7.9 9.0 88 9.1 9.1 100
GROS VENTRE SUMMIT 8750 8.0 9.7 82 7.8 8.9 88
KENDALL R.S. 7740 7.8 10.1 77 8.7 10.0 87
LOOMIS PARK 8240 9.2 11.5 80 9.9 12.1 82
NEW FORK LAKE 8340 6.8 7.9 86 6.6 8.1 81
SNIDER BASIN 8060 9.9 10.1 98 10.5 11.4 92
SPRING CREEK DIVIDE 9000 16.4 17.9 92 15.8 18.8 84
TRIPLE PEAK 8500 12.1 17.0 71 13.3 16.7 80
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Basin wide percent of average 83 86
LOWER GREEN RIVER
HAMS FORK 7840 8.1 8.7 93 9.4 8.6 109
HEWINTA 9500 6.6 6.9 96 8.9 9.5 94
HICKERSON PARK 9100 6.3 4.5 140 8.4 5.3 158
HOLE-IN-ROCK 9150 5.3 4.3 123 7.6 4.9 155
INDIAN CREEK 9425 18.9 18.1 104 16.9 17.3 98
KELLEY R.S. 8180 11.5 11.0 105 13.4 14.3 94
STEEL CREEK PARK 10100 10.8 9.7 111 11.4 10.4 110
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Basin wide percent of average 107 108
UPPER BEAR RIVER
BUG LAKE 7950 14.6 13.6 107 17.0 13.3 128
HAYDEN FORK 9100 13.0 10.1 129 18.1 14.0 129
KELLEY R.S. 8180 11.5 11.0 105 13.4 14.3 94
LILY LAKE 9050 10.9 8.5 128 13.3 11.8 113
MONTE CRISTO 8960 21.1 18.9 112 21.6 17.2 126
SALT RIVER SUMMIT 7600 8.3 9.5 87 11.4 12.9 88
TRIAL LAKE 9960 21.5 16.2 133 23.3 16.3 143
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Basin wide percent of average 115 118
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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.