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 THURSDAY: JANUARY 11 , 2007
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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 9.4 9.7 97 13.1 11.9 110
COTTONWOOD CREEK 7600 10.3 11.2 92 13.3 15.2 88
GRANITE CREEK 6770 7.7 9.2 84 10.9 10.9 100
GRASSY LAKE 7265 15.5 17.4 89 22.5 19.8 114
GROS VENTRE SUMMIT 8750 6.8 7.8 87 8.0 7.1 113
LEWIS LAKE DIVIDE 7850 15.4 17.4 89 21.1 19.9 106
PHILLIPS BENCH 8200 11.4 14.5 79 15.6 15.4 101
SALT RIVER SUMMIT 7600 6.4 6.6 97 8.6 10.2 84
SNAKE RIVER STATION 6920 9.5 9.3 102 16.4 12.5 131
SPRING CREEK DIVIDE 9000 11.0 14.1 78 12.1 14.7 82
THUMB DIVIDE 7980 7.7 9.0 86 9.5 10.3 92
TOGWOTEE PASS 9580 11.5 13.4 86 13.2 13.5 98
TWO OCEAN PLATEAU 9240 15.2 15.3 99 15.0 15.1 99
WILLOW CREEK 8450 12.9 16.2 80 17.1 17.5 98
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Basin wide percent of average 88 101
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 11.6 13.2 88 11.6 11.3 103
BLACK BEAR 8170 19.2 20.2 95 21.4 20.3 105
CANYON 8090 6.5 7.1 92 9.6 8.8 109
FISHER CREEK 9100 19.4 19.1 102 19.7 19.5 101
MADISON PLATEAU 7750 10.0 13.0 77 13.3 14.0 95
NORTHEAST ENTRANCE 7350 4.8 6.0 80 8.7 7.2 121
PARKER PEAK 9400 10.8 12.0 90 10.5 9.1 115
SYLVAN LAKE 8420 8.7 12.1 72 13.6 12.2 111
THUMB DIVIDE 7980 7.7 9.0 86 9.5 10.3 92
TWO OCEAN PLATEAU 9240 15.2 15.3 99 15.0 15.1 99
WHISKEY CREEK 6800 6.7 8.7 77 11.2 11.2 100
WHITE MILL 8700 11.4 13.0 88 13.1 14.6 90
WOLVERINE 7650 5.4 6.8 79 6.6 7.7 86
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Basin wide percent of average 88 102
WIND RIVER
BURROUGHS CREEK 8750 7.8 8.1 96 9.5 9.1 104
COLD SPRINGS 9630 3.4 5.1 67 4.6 6.2 74
DEER PARK 9700 5.5 8.4 65 8.5 12.1 70
HOBBS PARK 10100 5.1 8.5 60 5.4 7.0 77
LITTLE WARM 9370 4.8 6.2 77 6.1 7.5 81
SOUTH PASS 9040 6.8 9.3 73 8.0 10.2 78
ST. LAWRENCE ALT 8620 2.3 4.2 55 3.7 5.0 74
TOGWOTEE PASS 9580 11.5 13.4 86 13.2 13.5 98
TOWNSEND CREEK 8700 3.3 4.8 69 5.9 6.4 92
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Basin wide percent of average 74 84
BIGHORN BASIN
BALD MTN. 9380 10.1 11.1 91 7.7 9.6 80
BEAR TRAP MEADOW 8200 2.5 2.9 86 3.3 4.8 69
BLACKWATER 9780 12.0 13.5 89 11.9 11.9 100
BONE SPRINGS DIV 9350 9.1 8.9 102 7.6 8.0 95
EVENING STAR 9200 14.1 15.9 89 17.2 14.5 119
GRAVE SPRINGS 8550 3.1 4.6 67 3.6 5.4 67
KIRWIN 9550 5.4 6.6 82 6.7 6.4 105
MARQUETTE 8760 .5 5.3 9 4.0 5.6 71
MIDDLE POWDER 7760 4.4 6.1 72 4.7 7.3 64
OWL CREEK 8975 3.2 2.9 110 4.0 3.2 125
POWDER RIVER PASS 9480 4.5 5.9 76 5.4 6.7 81
SHELL CREEK 9580 8.2 8.2 100 6.1 7.5 81
SYLVAN LAKE 8420 8.7 12.1 72 13.6 12.2 111
SYLVAN ROAD 7120 5.4 7.2 75 10.9 11.1 98
TIMBER CREEK 7950 .8 3.2 25 3.5 4.0 88
YOUNTS PEAK 8350 6.6 9.3 71 9.5 9.2 103
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Basin wide percent of average 80 94
SHOSHONE RIVER
BLACKWATER 9780 12.0 13.5 89 11.9 11.9 100
EVENING STAR 9200 14.1 15.9 89 17.2 14.5 119
KIRWIN 9550 5.4 6.6 82 6.7 6.4 105
MARQUETTE 8760 .5 5.3 9 4.0 5.6 71
SYLVAN LAKE 8420 8.7 12.1 72 13.6 12.2 111
SYLVAN ROAD 7120 5.4 7.2 75 10.9 11.1 98
YOUNTS PEAK 8350 6.6 9.3 71 9.5 9.2 103
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Basin wide percent of average 75 104
POWDER-TONGUE
BEAR TRAP MEADOW 8200 2.5 2.9 86 3.3 4.8 69
BIG GOOSE 7990 2.9 5.0 58 4.2 4.9 86
BONE SPRINGS DIV 9350 9.1 8.9 102 7.6 8.0 95
BURGESS JUNCTION 7880 5.1 6.1 84 6.2 6.7 93
CLOUD PEAK RESERVOIR 9860 5.8 6.6 88 4.7 7.0 67
DOME LAKE 8880 4.9 6.7 73 6.1 7.5 81
GRAVE SPRINGS 8550 3.1 4.6 67 3.6 5.4 67
HANSEN SAWMILL 8360 1.3 3.6 36 2.6 4.6 57
MIDDLE POWDER 7760 4.4 6.1 72 4.7 7.3 64
POWDER RIVER PASS 9480 4.5 5.9 76 5.4 6.7 81
SUCKER CREEK 8880 6.2 5.9 105 7.0 7.4 95
TIE CREEK 6870 1.4 3.2 44 5.6 5.6 100
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Basin wide percent of average 78 80
BELLE FOURCHE
BLIND PARK 6890 1.7 4.2 40 4.7 6.7 70
COLE CANYON 5910 1.8 3.4 53 4.4 -M *
NORTH RAPID CREEK 6130 2.7 3.8 71 4.0 5.6 71
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Basin wide percent of average 54 71
UPPER N. PLATTE RIVER
COLUMBINE 9160 9.2 12.0 77 11.3 13.2 86
DIVIDE PEAK 8860 10.3 10.6 97 12.2 11.2 109
ELK RIVER 8700 8.3 8.8 94 9.6 10.1 95
JOE WRIGHT 10120 11.8 11.1 106 13.8 13.3 104
NORTH FRENCH CREEK 10130 13.6 15.1 90 13.9 13.4 104
OLD BATTLE 9920 13.3 16.3 82 16.6 18.1 92
SAGE CREEK BASIN 7850 7.5 6.1 123 8.2 6.5 126
SOUTH BRUSH CREEK 8440 7.0 5.8 121 9.0 8.8 102
TOWER 10500 15.1 23.6 64 17.9 20.3 88
WEBBER SPRINGS 9250 10.4 12.9 81 14.0 14.6 96
WILLOW CREEK PASS 9540 7.3 6.2 118 7.2 7.0 103
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Basin wide percent of average 89 98
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 10.8 12.3 88 11.3 11.5 98
CASPER MTN. 7850 5.1 7.6 67 6.7 7.7 87
DEADMAN HILL 10220 9.7 8.6 113 10.7 8.8 122
DEER PARK 9700 5.5 8.4 65 8.5 12.1 70
LAPRELE CREEK 8375 4.5 6.0 75 5.6 6.8 82
RENO HILL 8500 6.5 7.2 90 7.4 7.9 94
ROACH 9700 10.2 8.5 120 11.9 9.5 125
SAND LAKE 10050 14.2 16.5 86 14.0 13.0 108
SOUTH PASS 9040 6.8 9.3 73 8.0 10.2 78
WINDY PEAK 7900 4.1 3.8 108 5.7 6.0 95
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Basin wide percent of average 88 96
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 3.3 5.3 62 7.4 8.0 92
DIVIDE PEAK 8860 10.3 10.6 97 12.2 11.2 109
OLD BATTLE 9920 13.3 16.3 82 16.6 18.1 92
SANDSTONE RS 8150 4.8 6.7 72 8.3 10.1 82
WHISKEY PARK 8950 -M 13.5 * -M 15.2 *
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Basin wide percent of average 81 94
UPPER GREEN RIVER
BIG SANDY OPENING 9080 7.0 7.8 90 7.2 7.4 97
BLIND BULL SUM 8900 -M 15.0 * 10.9 12.5 87
EAST RIM DIVIDE 7930 5.1 6.8 75 6.7 6.5 103
ELKHART PARK G.S. 9400 5.6 7.1 79 7.5 7.4 101
GROS VENTRE SUMMIT 8750 6.8 7.8 87 8.0 7.1 113
KENDALL R.S. 7740 6.4 7.8 82 8.4 7.8 108
LOOMIS PARK 8240 7.1 9.1 78 9.5 9.4 101
NEW FORK LAKE 8340 5.4 6.1 89 6.8 6.5 105
SNIDER BASIN 8060 6.5 7.8 83 7.7 8.9 87
SPRING CREEK DIVIDE 9000 11.0 14.1 78 12.1 14.7 82
TRIPLE PEAK 8500 11.2 13.5 83 14.0 12.8 109
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Basin wide percent of average 82 98
LOWER GREEN RIVER
HAMS FORK 7840 5.2 6.4 81 5.8 6.6 88
HEWINTA 9500 4.0 4.9 82 8.5 7.7 110
HICKERSON PARK 9100 3.6 3.4 106 6.6 4.5 147
HOLE-IN-ROCK 9150 4.5 3.1 145 5.9 4.2 140
INDIAN CREEK 9425 10.9 14.2 77 10.4 13.7 76
KELLEY R.S. 8180 7.2 8.6 84 9.4 11.3 83
STEEL CREEK PARK 10100 7.3 7.5 97 8.4 8.4 100
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Basin wide percent of average 89 98
UPPER BEAR RIVER
BUG LAKE 7950 7.2 9.9 73 9.1 10.4 87
HAYDEN FORK 9100 5.7 7.4 77 12.3 11.2 110
KELLEY R.S. 8180 7.2 8.6 84 9.4 11.3 83
LILY LAKE 9050 6.6 6.4 103 9.7 9.5 102
MONTE CRISTO 8960 10.6 13.3 80 12.5 13.6 92
SALT RIVER SUMMIT 7600 6.4 6.6 97 8.6 10.2 84
TRIAL LAKE 9960 5.7 12.1 47 11.9 12.7 94
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Basin wide percent of average 77 93
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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.