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: JANUARY 21 , 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 11.1 80 10.4 13.3 78
COTTONWOOD CREEK 7600 10.3 12.6 82 12.8 16.9 76
GRANITE CREEK 6770 9.2 10.7 86 11.7 12.2 96
GRASSY LAKE 7265 15.8 20.1 79 17.1 22.3 77
GROS VENTRE SUMMIT 8750 8.0 8.7 92 7.7 7.9 97
LEWIS LAKE DIVIDE 7850 15.2 20.1 76 15.7 22.3 70
PHILLIPS BENCH 8200 15.7 16.4 96 16.2 17.4 93
SALT RIVER SUMMIT 7600 8.4 7.8 108 11.3 11.3 100
SNAKE RIVER STATION 6920 7.8 10.9 72 9.9 14.0 71
SPRING CREEK DIVIDE 9000 16.1 15.7 103 15.6 16.4 95
THUMB DIVIDE 7980 9.6 10.3 93 9.4 11.4 82
TOGWOTEE PASS 9580 11.3 15.1 75 11.4 15.1 75
TWO OCEAN PLATEAU 9240 15.6 17.1 91 12.6 16.7 75
WILLOW CREEK 8450 14.6 18.1 81 17.2 19.6 88
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Basin wide percent of average 86 83
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 9.8 14.7 67 8.6 12.6 68
BLACK BEAR 8170 23.4 22.9 102 22.2 23.1 96
CANYON 8090 6.1 8.0 76 7.7 9.7 79
FISHER CREEK 9100 16.4 21.5 76 16.2 21.9 74
MADISON PLATEAU 7750 13.8 14.6 95 15.1 15.7 96
NORTHEAST ENTRANCE 7350 3.6 6.9 52 4.9 8.0 61
PARKER PEAK 9400 10.3 13.4 77 8.5 10.1 84
SYLVAN LAKE 8420 9.8 13.6 72 11.3 13.5 84
THUMB DIVIDE 7980 9.6 10.3 93 9.4 11.4 82
TWO OCEAN PLATEAU 9240 15.6 17.1 91 12.6 16.7 75
WHISKEY CREEK 6800 9.5 9.9 96 12.4 12.4 100
WHITE MILL 8700 10.6 14.6 73 10.3 16.3 63
WOLVERINE 7650 5.1 7.7 66 5.1 8.4 61
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Basin wide percent of average 82 80
WIND RIVER
BURROUGHS CREEK 8750 6.5 9.1 71 6.8 10.1 67
COLD SPRINGS 9630 5.6 5.5 102 5.9 6.6 89
DEER PARK 9700 16.3 10.0 163 18.4 13.2 139
HOBBS PARK 10100 11.0 9.2 120 10.0 7.6 132
LITTLE WARM 9370 5.6 7.0 80 6.2 8.2 76
SOUTH PASS 9040 14.3 10.3 139 15.1 11.1 136
ST. LAWRENCE ALT 8620 5.2 4.5 116 6.2 5.3 117
TOGWOTEE PASS 9580 11.3 15.1 75 11.4 15.1 75
TOWNSEND CREEK 8700 7.6 5.2 146 10.2 6.8 150
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Basin wide percent of average 110 107
BIGHORN BASIN
BALD MTN. 9380 9.6 12.3 78 9.4 10.6 89
BEAR TRAP MEADOW 8200 2.6 3.2 81 4.8 5.1 94
BLACKWATER 9780 9.5 15.0 63 9.2 13.0 71
BONE SPRINGS DIV 9350 8.8 9.8 90 8.8 8.8 100
EVENING STAR 9200 11.8 17.8 66 13.0 16.0 81
GRAVE SPRINGS 8550 4.0 5.2 77 5.5 5.9 93
KIRWIN 9550 4.6 7.2 64 5.4 7.0 77
MARQUETTE 8760 2.5 5.6 45 4.0 5.9 68
MIDDLE POWDER 7760 4.2 6.6 64 5.2 7.8 67
OWL CREEK 8975 2.3 3.1 74 2.6 3.4 76
POWDER RIVER PASS 9480 7.3 6.6 111 8.3 7.5 111
SHELL CREEK 9580 8.5 9.1 93 7.6 8.4 90
SYLVAN LAKE 8420 9.8 13.6 72 11.3 13.5 84
SYLVAN ROAD 7120 5.5 8.0 69 8.0 12.2 66
TIMBER CREEK 7950 1.1 3.4 32 1.7 4.2 40
YOUNTS PEAK 8350 7.1 10.6 67 7.2 10.3 70
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Basin wide percent of average 72 80
SHOSHONE RIVER
BLACKWATER 9780 9.5 15.0 63 9.2 13.0 71
EVENING STAR 9200 11.8 17.8 66 13.0 16.0 81
KIRWIN 9550 4.6 7.2 64 5.4 7.0 77
MARQUETTE 8760 2.5 5.6 45 4.0 5.9 68
SYLVAN LAKE 8420 9.8 13.6 72 11.3 13.5 84
SYLVAN ROAD 7120 5.5 8.0 69 8.0 12.2 66
YOUNTS PEAK 8350 7.1 10.6 67 7.2 10.3 70
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Basin wide percent of average 65 75
POWDER-TONGUE
BEAR TRAP MEADOW 8200 2.6 3.2 81 4.8 5.1 94
BIG GOOSE 7990 4.0 5.5 73 5.4 5.3 102
BONE SPRINGS DIV 9350 8.8 9.8 90 8.8 8.8 100
BURGESS JUNCTION 7880 4.5 6.8 66 5.7 7.3 78
CLOUD PEAK RESERVOIR 9860 8.4 7.3 115 7.2 7.6 95
DOME LAKE 8880 6.2 7.3 85 6.7 8.1 83
GRAVE SPRINGS 8550 4.0 5.2 77 5.5 5.9 93
HANSEN SAWMILL 8360 3.4 3.9 87 4.6 4.9 94
MIDDLE POWDER 7760 4.2 6.6 64 5.2 7.8 67
POWDER RIVER PASS 9480 7.3 6.6 111 8.3 7.5 111
SUCKER CREEK 8880 6.2 6.6 94 7.6 8.1 94
TIE CREEK 6870 .4 3.7 11 4.6 6.2 74
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Basin wide percent of average 83 90
BELLE FOURCHE
BLIND PARK 6890 3.3 4.7 70 5.3 7.2 74
COLE CANYON 5910 1.7 3.7 46 4.5 -M *
NORTH RAPID CREEK 6130 2.2 4.4 50 4.1 5.9 69
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Basin wide percent of average 56 72
UPPER N. PLATTE RIVER
COLUMBINE 9160 12.7 14.1 90 13.9 14.9 93
DIVIDE PEAK 8860 14.2 11.8 120 16.9 12.4 136
ELK RIVER 8700 13.6 10.5 130 14.7 11.4 129
JOE WRIGHT 10120 12.0 12.4 97 12.5 14.7 85
NORTH FRENCH CREEK 10130 15.7 16.7 94 15.3 14.8 103
OLD BATTLE 9920 23.6 18.1 130 25.8 20.1 128
SAGE CREEK BASIN 7850 10.4 6.8 153 12.5 7.2 174
SOUTH BRUSH CREEK 8440 6.3 6.6 95 8.3 9.8 85
TOWER 10500 23.8 26.7 89 23.9 22.7 105
WEBBER SPRINGS 9250 16.8 14.4 117 19.4 16.2 120
WILLOW CREEK PASS 9540 9.8 6.8 144 9.6 7.6 126
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Basin wide percent of average 110 114
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 11.8 13.7 86 11.3 12.8 88
CASPER MTN. 7850 6.4 8.3 77 7.8 8.3 94
DEADMAN HILL 10220 10.5 9.6 109 8.3 9.6 86
DEER PARK 9700 16.3 10.0 163 18.4 13.2 139
LAPRELE CREEK 8375 4.4 6.7 66 6.6 7.4 89
RENO HILL 8500 5.2 7.8 67 6.1 8.6 71
ROACH 9700 9.7 9.7 100 12.0 10.6 113
SAND LAKE 10050 14.1 18.2 77 12.8 14.4 89
SOUTH PASS 9040 14.3 10.3 139 15.1 11.1 136
WINDY PEAK 7900 -M 4.1 * -M 6.5 *
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Basin wide percent of average 98 102
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 7.9 6.5 122 10.5 8.9 118
DIVIDE PEAK 8860 14.2 11.8 120 16.9 12.4 136
OLD BATTLE 9920 23.6 18.1 130 25.8 20.1 128
SANDSTONE RS 8150 7.4 8.1 91 13.5 11.2 121
WHISKEY PARK 8950 16.7 15.8 106 17.8 17.2 103
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Basin wide percent of average 116 121
UPPER GREEN RIVER
BIG SANDY OPENING 9080 11.4 8.6 133 11.1 8.1 137
BLIND BULL SUM 8900 12.7 16.7 76 11.3 13.9 81
EAST RIM DIVIDE 7930 5.7 7.6 75 6.7 7.3 92
ELKHART PARK G.S. 9400 7.8 7.9 99 9.1 8.1 112
GROS VENTRE SUMMIT 8750 8.0 8.7 92 7.7 7.9 97
KENDALL R.S. 7740 7.8 8.8 89 8.7 8.7 100
LOOMIS PARK 8240 9.2 10.1 91 10.0 10.6 94
NEW FORK LAKE 8340 6.8 6.9 99 6.6 7.2 92
SNIDER BASIN 8060 9.9 8.8 112 10.6 10.0 106
SPRING CREEK DIVIDE 9000 16.1 15.7 103 15.6 16.4 95
TRIPLE PEAK 8500 12.1 15.0 81 13.2 14.4 92
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Basin wide percent of average 94 98
LOWER GREEN RIVER
HAMS FORK 7840 8.0 7.4 108 9.3 7.5 124
HEWINTA 9500 5.4 5.7 95 8.0 8.5 94
HICKERSON PARK 9100 5.9 3.9 151 8.1 4.8 169
HOLE-IN-ROCK 9150 4.9 3.6 136 7.3 4.5 162
INDIAN CREEK 9425 18.6 15.9 117 16.6 15.2 109
KELLEY R.S. 8180 11.5 9.6 120 13.2 12.6 105
STEEL CREEK PARK 10100 10.1 8.4 120 10.9 9.2 118
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Basin wide percent of average 118 118
UPPER BEAR RIVER
BUG LAKE 7950 14.3 11.5 124 16.8 11.6 145
HAYDEN FORK 9100 12.9 8.6 150 17.8 12.3 145
KELLEY R.S. 8180 11.5 9.6 120 13.2 12.6 105
LILY LAKE 9050 10.0 7.2 139 12.7 10.5 121
MONTE CRISTO 8960 21.0 15.6 135 21.3 15.1 141
SALT RIVER SUMMIT 7600 8.4 7.8 108 11.3 11.3 100
TRIAL LAKE 9960 21.1 13.8 153 22.6 14.2 159
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Basin wide percent of average 134 132
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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.