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 TUESDAY: JANUARY 13 , 2004
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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 13.0 10.0 130 13.8 12.1 114
COTTONWOOD CREEK 7600 12.0 11.5 104 12.9 15.5 83
GRANITE CREEK 6770 11.6 9.5 122 12.5 11.1 113
GRASSY LAKE 7265 22.6 18.0 126 22.3 20.3 110
GROS VENTRE SUMMIT 8775 7.2 8.0 90 6.7 7.3 92
LEWIS LAKE DIVIDE 7860 21.2 18.0 118 21.6 20.4 106
PHILLIPS BENCH 8200 16.3 14.9 109 16.7 15.8 106
SALT RIVER SUMMIT 7600 8.2 6.9 119 9.1 10.4 87
SNAKE RIVER STATION 6920 13.9 9.6 145 14.8 12.8 116
SPRING CREEK DIVIDE 9000 12.9 14.4 90 12.5 15.1 83
THUMB DIVIDE 7980 12.8 9.2 139 12.1 10.5 115
TOGWOTEE PASS 9580 12.9 13.8 93 13.1 13.9 94
TWO OCEAN PLATEAU 9360 17.6 15.6 113 15.8 15.4 103
WILLOW CREEK 8450 16.8 16.6 101 18.3 17.9 102
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Basin wide percent of average 113 102
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 11.8 13.6 87 11.9 11.5 103
BLACK BEAR 8170 -M 20.8 * -M 20.9 *
CANYON 8090 7.4 7.3 101 8.4 9.0 93
FISHER CREEK 9100 18.6 19.6 95 18.7 20.0 94
MADISON PLATEAU 7750 15.9 13.3 120 15.6 14.4 108
NORTHEAST ENTRANCE 7350 4.1 6.2 66 6.7 7.4 91
PARKER PEAK 9400 11.2 12.3 91 9.1 9.3 98
SYLVAN LAKE 8420 -M 12.4 * -M 12.5 *
THUMB DIVIDE 7980 12.8 9.2 139 12.1 10.5 115
TWO OCEAN PLATEAU 9360 17.6 15.6 113 15.8 15.4 103
WHISKEY CREEK 6800 -M 9.0 * -M 11.4 *
WHITE MILL 8700 10.6 13.4 79 12.3 14.9 83
WOLVERINE 7650 5.9 7.0 84 6.1 7.9 77
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Basin wide percent of average 99 97
WIND RIVER
BURROUGHS CREEK 8750 7.5 8.3 90 8.6 9.3 92
COLD SPRINGS 9630 3.7 5.2 71 3.8 6.2 61
DEER PARK 9700 10.4 8.8 118 12.2 12.3 99
HOBBS PARK 10100 6.9 8.6 80 6.2 7.1 87
LITTLE WARM 9370 4.9 6.4 77 5.9 7.6 78
SOUTH PASS 9040 10.7 9.5 113 10.7 10.4 103
ST. LAWRENCE ALT 8620 2.9 4.2 69 3.4 5.0 68
TOGWOTEE PASS 9580 12.9 13.8 93 13.1 13.9 94
TOWNSEND CREEK 8700 4.9 4.9 100 5.7 6.5 88
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Basin wide percent of average 93 89
BIGHORN BASIN
BALD MTN. 9380 9.2 11.4 81 8.2 9.8 84
BEAR TRAP MEADOW 8200 4.1 2.9 141 4.0 4.9 82
BLACKWATER 9780 14.3 13.8 104 12.7 12.1 105
BONE SPRINGS DIV 9350 7.8 9.1 86 8.4 8.2 102
EVENING STAR 9200 13.0 16.4 79 15.9 14.8 107
GRAVE SPRINGS 8550 6.0 4.8 125 5.5 5.5 100
KIRWIN 9550 4.0 6.8 59 4.9 6.6 74
MARQUETTE 8760 4.4 5.3 83 4.8 5.6 86
MIDDLE POWDER 7760 6.6 6.2 106 5.3 7.4 72
OWL CREEK 8975 2.2 3.0 73 2.3 3.2 72
POWDER RIVER PASS 9480 6.3 6.1 103 7.0 6.9 101
SHELL CREEK 9580 8.3 8.4 99 8.0 7.7 104
SYLVAN LAKE 8420 -M 12.4 * -M 12.5 *
SYLVAN ROAD 7120 7.5 7.4 101 9.9 11.3 88
TIMBER CREEK 7950 2.0 3.3 61 2.7 4.0 68
YOUNTS PEAK 8350 5.6 9.5 59 8.1 9.4 86
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Basin wide percent of average 89 92
SHOSHONE RIVER
BLACKWATER 9780 14.3 13.8 104 12.7 12.1 105
EVENING STAR 9200 13.0 16.4 79 15.9 14.8 107
KIRWIN 9550 4.0 6.8 59 4.9 6.6 74
MARQUETTE 8760 4.4 5.3 83 4.8 5.6 86
SYLVAN LAKE 8420 -M 12.4 * -M 12.5 *
SYLVAN ROAD 7120 7.5 7.4 101 9.9 11.3 88
YOUNTS PEAK 8350 5.6 9.5 59 8.1 9.4 86
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Basin wide percent of average 82 94
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.1 2.9 141 4.0 4.9 82
BIG GOOSE 7990 4.4 5.1 86 5.0 5.0 100
BONE SPRINGS DIV 9350 7.8 9.1 86 8.4 8.2 102
BURGESS JUNCTION 7880 5.3 6.3 84 5.5 6.8 81
CLOUD PEAK RESERVOIR 9860 7.4 6.7 110 6.4 7.1 90
DOME LAKE 8880 -M 6.9 * -M 7.6 *
GRAVE SPRINGS 8550 6.0 4.8 125 5.5 5.5 100
HANSEN SAWMILL 8360 4.0 3.6 111 3.8 4.7 81
MIDDLE POWDER 7760 6.6 6.2 106 5.3 7.4 72
POWDER RIVER PASS 9480 6.3 6.1 103 7.0 6.9 101
SUCKER CREEK 8880 5.5 6.1 90 6.8 7.5 91
TIE CREEK 6870 3.3 3.4 97 4.6 5.8 79
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Basin wide percent of average 101 89
BELLE FOURCHE
BLIND PARK 6890 3.3 4.4 75 5.4 6.8 79
COLE CANYON 5910 2.9 3.4 85 3.8 -M *
NORTH RAPID CREEK 6130 3.0 3.9 77 4.3 5.7 75
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Basin wide percent of average 79 78
UPPER N. PLATTE RIVER
COLUMBINE 9400 13.0 12.4 105 14.6 13.5 108
DIVIDE PEAK 8800 11.3 10.8 105 11.9 11.4 104
ELK RIVER 8700 11.2 9.2 122 12.6 10.4 121
JOE WRIGHT 10120 8.0 11.3 71 10.1 13.6 74
NORTH FRENCH CREEK 10100 12.5 15.5 81 11.7 13.7 85
OLD BATTLE 10000 19.4 16.7 116 20.7 18.5 112
SAGE CREEK BASIN 7850 8.5 6.2 137 9.6 6.6 145
SOUTH BRUSH CREEK 8400 5.1 6.0 85 5.9 9.0 66
TOWER 10500 23.0 24.2 95 24.7 20.8 119
WEBBER SPRINGS 9200 14.9 13.2 113 16.3 14.9 109
WILLOW CREEK PASS 9540 5.4 6.3 86 4.9 7.1 69
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Basin wide percent of average 100 103
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 9.6 12.6 76 9.0 11.7 77
CASPER MTN. 7900 5.7 7.8 73 5.1 7.9 65
DEADMAN HILL 10220 6.1 8.8 69 8.8 8.9 99
DEER PARK 9700 10.4 8.8 118 12.2 12.3 99
LAPRELE CREEK 8320 5.3 6.2 85 5.6 6.9 81
RENO HILL 8400 6.9 7.4 93 6.5 8.0 81
ROACH 9700 9.7 8.8 110 10.5 9.7 108
SAND LAKE 10080 12.8 16.9 76 12.3 13.3 92
SOUTH PASS 9040 10.7 9.5 113 10.7 10.4 103
WINDY PEAK 7840 3.2 3.8 84 4.0 6.1 66
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Basin wide percent of average 89 89
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.2 5.6 164 9.3 8.2 113
DIVIDE PEAK 8800 11.3 10.8 105 11.9 11.4 104
OLD BATTLE 10000 19.4 16.7 116 20.7 18.5 112
SANDSTONE RS 8150 7.0 7.0 100 12.5 10.3 121
WHISKEY PARK 8950 15.4 13.9 111 15.5 15.6 99
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Basin wide percent of average 115 109
UPPER GREEN RIVER
BIG SANDY OPENING 9100 8.5 7.9 108 8.1 7.5 108
BLIND BULL SUM 8650 14.2 15.3 93 11.5 12.8 90
EAST RIM DIVIDE 7930 6.8 6.9 99 7.1 6.7 106
ELKHART PARK G.S. 9400 7.6 7.2 106 8.1 7.6 107
GROS VENTRE SUMMIT 8775 7.2 8.0 90 6.7 7.3 92
KENDALL R.S. 7740 -M 8.0 * 8.8 8.0 110
LOOMIS PARK 8240 10.3 9.3 111 10.5 9.7 108
NEW FORK LAKE 8340 6.6 6.3 105 6.2 6.7 93
SNIDER BASIN 8250 8.1 8.0 101 8.0 9.1 88
SPRING CREEK DIVIDE 9000 12.9 14.4 90 12.5 15.1 83
TRIPLE PEAK 8500 12.7 13.8 92 13.8 13.1 105
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Basin wide percent of average 98 98
LOWER GREEN RIVER
HAMS FORK 7840 6.6 6.6 100 6.2 6.8 91
HEWINTA 9500 5.1 5.0 102 6.7 7.9 85
HICKERSON PARK 9150 2.8 3.5 80 5.0 4.6 109
HOLE-IN-ROCK 9150 3.8 3.2 119 4.1 4.2 98
INDIAN CREEK 9425 13.7 14.6 94 12.0 14.0 86
KELLEY R.S. 8180 9.1 8.8 103 10.1 11.6 87
STEEL CREEK PARK 10100 6.5 7.6 86 7.0 8.6 81
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Basin wide percent of average 97 89
UPPER BEAR RIVER
BUG LAKE 7950 11.4 10.2 112 11.3 10.6 107
HAYDEN FORK 9400 6.7 7.7 87 10.2 11.4 89
KELLEY R.S. 8180 9.1 8.8 103 10.1 11.6 87
LILY LAKE 9050 5.8 6.5 89 7.7 9.7 79
MONTE CRISTO 8960 14.6 13.7 107 14.9 13.9 107
SALT RIVER SUMMIT 7600 8.2 6.9 119 9.1 10.4 87
TRIAL LAKE 9960 12.5 12.5 100 14.0 13.0 108
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Basin wide percent of average 103 96
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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.