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: DECEMBER 30 , 2012
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 10.0 7.0 143 12.8 9.8 131
BLACK BEAR 8170 20.3 17.2 118 20.2 17.4 116
BLIND BULL SUM 8650 10.1 8.9 113 8.4 9.1 92
COTTONWOOD CREEK 7670 8.5 8.2 104 12.1 10.9 111
EAST RIM DIVIDE 7930 4.5 4.2 107 4.8 5.4 89
GRAND TARGHEE 9260 20.0 17.3 116 16.0 14.7 109
GRANITE CREEK 6770 7.6 6.2 123 9.6 9.2 104
GRASSY LAKE 7265 12.2 12.2 100 16.3 16.6 98
GROS VENTRE SUMMIT 8750 6.2 6.0 103 6.6 6.0 110
GUNSIGHT PASS 9820 6.7 5.9 114 7.0 6.3 111
LEWIS LAKE DIVIDE 7850 16.4 12.9 127 19.5 16.5 118
PHILLIPS BENCH 8200 11.0 10.6 104 13.3 12.5 106
SALT RIVER SUMMIT 7760 5.0 4.7 106 8.1 7.3 111
SNAKE RIVER STATION 6920 7.5 6.0 125 12.6 10.8 117
SPRING CREEK DIVIDE 9000 10.6 9.7 109 11.0 10.5 105
THUMB DIVIDE 7980 8.5 6.0 142 10.0 8.5 118
TOGWOTEE PASS 9580 11.3 10.8 105 12.1 11.2 108
TWO OCEAN PLATEAU 9240 16.3 12.2 134 13.7 12.4 110
WILLOW CREEK 8380 11.3 10.4 109 15.7 15.2 103
YOUNTS PEAK 8350 7.5 6.9 109 6.6 7.6 87
----- -----
Basin wide percent 115 108
MADISON-GALLATIN
BLACK BEAR 8170 20.3 17.2 118 20.2 17.4 116
CANYON 7870 5.7 5.2 110 6.9 7.7 90
MADISON PLATEAU 7750 12.5 10.1 124 15.2 12.1 126
WEST YELLOWSTONE 6700 4.3 4.5 96 8.5 6.9 123
WHISKEY CREEK 6800 5.3 6.4 83 11.1 9.5 117
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Basin wide percent 111 115
YELLOWSTONE
BEARTOOTH LAKE 9360 8.5 9.7 88 8.9 9.0 99
BURNT MTN 5880 1.1 1.9 58 5.1 6.7 76
CANYON 7870 5.7 5.2 110 6.9 7.7 90
COLE CREEK 7850 3.5 6.3 56 4.7 6.3 75
EVENING STAR 9200 12.9 11.0 117 15.0 12.9 116
FISHER CREEK 9100 19.0 14.3 133 18.4 14.7 125
NORTHEAST ENTRANCE 7350 3.2 3.8 84 6.3 6.0 105
PARKER PEAK 9400 10.6 9.6 110 10.9 8.3 131
SYLVAN LAKE 8420 9.3 9.0 103 13.4 10.9 123
THUMB DIVIDE 7980 8.5 6.0 142 10.0 8.5 118
TWO OCEAN PLATEAU 9240 16.3 12.2 134 13.7 12.4 110
WHITE MILL 8700 11.6 9.6 121 12.4 11.1 112
WOLVERINE 7650 4.4 4.6 96 5.2 6.1 85
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Basin wide percent 111 109
WIND RIVER
BURROUGHS CREEK 8750 6.5 6.1 107 6.5 7.6 86
CASTLE CREEK 8400 3.6 -M * 4.9 -M *
COLD SPRINGS 9630 4.2 3.1 135 5.2 4.9 106
DEER PARK 9700 7.3 6.6 111 8.4 8.6 98
HOBBS PARK 10100 6.1 6.4 95 5.8 6.1 95
KIRWIN 9550 5.1 4.3 119 6.2 5.5 113
LITTLE WARM 9370 5.5 4.4 125 6.8 6.1 111
OWL CREEK 8975 2.4 2.5 96 2.8 2.9 97
SOUTH PASS 9040 5.8 6.5 89 5.0 8.1 62
ST. LAWRENCE ALT 8620 -M 3.0 * -M 4.2 *
TOGWOTEE PASS 9580 11.3 10.8 105 12.1 11.2 108
TOWNSEND CREEK 8700 1.6 4.0 40 3.7 5.7 65
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Basin wide percent 102 94
BIGHORN BASIN
BALD MTN. 9380 5.3 8.2 65 3.4 7.7 44
BEAR TRAP MEADOW 8200 4.1 2.5 164 5.2 4.2 124
BONE SPRINGS DIV 9350 6.0 7.2 83 5.6 7.0 80
GRAVE SPRINGS 8550 2.0 3.2 62 3.4 5.0 68
KIRWIN 9550 5.1 4.3 119 6.2 5.5 113
MARQUETTE 8760 2.5 -M * 4.1 -M *
MIDDLE POWDER 7760 3.4 4.8 71 -M 6.0 *
OWL CREEK 8975 2.4 2.5 96 2.8 2.9 97
POWDER RIVER PASS 9480 5.7 4.6 124 6.2 5.8 107
SHELL CREEK 9580 7.3 7.1 103 7.1 6.4 111
TIMBER CREEK 7950 1.0 2.1 48 3.0 3.9 77
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Basin wide percent 91 89
SHOSHONE RIVER
BLACKWATER 9780 12.6 10.4 121 12.2 9.7 126
EVENING STAR 9200 12.9 11.0 117 15.0 12.9 116
MARQUETTE 8760 2.5 -M * 4.1 -M *
SYLVAN ROAD 7120 5.2 5.2 100 9.9 8.8 112
YOUNTS PEAK 8350 7.5 6.9 109 6.6 7.6 87
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Basin wide percent 114 112
POWDER RIVER
BEAR TRAP MEADOW 8200 4.1 2.5 164 5.2 4.2 124
CLOUD PEAK RESERVOIR 9860 4.7 6.1 77 4.2 6.2 68
GRAVE SPRINGS 8550 2.0 3.2 62 3.4 5.0 68
HANSEN SAWMILL 8360 2.8 2.9 97 4.3 4.0 108
MIDDLE POWDER 7760 3.4 4.8 71 -M 6.0 *
POWDER RIVER PASS 9480 5.7 4.6 124 6.2 5.8 107
SOLDIER PARK 8720 1.6 -M * 4.0 -M *
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Basin wide percent 94 92
TONGUE RIVER
BIG GOOSE 7990 2.3 3.6 64 3.8 5.2 73
BONE SPRINGS DIV 9350 6.0 7.2 83 5.6 7.0 80
BURGESS JUNCTION 7880 2.5 4.6 54 2.9 5.8 50
DOME LAKE 8880 3.5 5.3 66 5.2 6.6 79
LITTLE GOOSE 8870 3.1 -M * 5.6 -M *
SUCKER CREEK 8880 3.9 5.0 78 4.0 6.6 61
TIE CREEK 6870 .6 1.9 32 3.8 5.5 69
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Basin wide percent 68 69
BELLE FOURCHE
COLE CANYON 5910 1.1 2.1 52 3.1 4.6 67
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Basin wide percent 52 67
CHEYENNE RIVER BASIN
BLIND PARK 6890 1.7 3.2 53 3.9 6.0 65
NORTH RAPID CREEK 6130 1.6 3.1 52 3.0 5.0 60
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Basin wide percent 52 63
UPPER N. PLATTE
ARAPAHO RIDGE 10960 7.9 -M * 8.2 -M *
BLACKHALL MTN 9820 9.8 -M * 11.9 -M *
COLUMBINE 9160 7.8 8.6 91 9.0 11.3 80
DIVIDE PEAK 8880 6.3 8.3 76 8.2 10.1 81
JOE WRIGHT 10120 8.0 9.3 86 10.9 11.8 92
LAPRELE CREEK 8375 1.1 3.9 28 2.9 5.9 49
MED BOW 10500 9.5 -M * 12.1 -M *
NORTH FRENCH CREEK 10130 8.7 11.3 77 9.1 11.8 77
NEVER SUMMER 10280 6.9 -M * 5.7 -M *
OLD BATTLE 10000 11.7 12.3 95 12.8 16.0 80
RAWAH 9020 3.8 -M * 6.5 -M *
SAGE CREEK BASIN 7850 5.1 5.6 91 5.6 7.2 78
SAND LAKE 10050 8.6 11.4 75 9.1 11.0 83
SOUTH BRUSH CREEK 8440 3.9 4.6 85 5.3 7.0 76
TOWER 10500 12.7 18.5 69 13.2 18.0 73
WEBBER SPRINGS 9250 8.8 9.3 95 10.2 12.2 84
WILLOW CREEK PASS 9540 5.3 -M * 6.6 6.4 103
ZIRKEL 9340 8.7 -M * 11.5 -M *
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Basin wide percent 80 80
SWEETWATER
DEER PARK 9700 7.3 6.6 111 8.4 8.6 98
LARSEN CREEK 9000 4.6 -M * 7.5 -M *
SOUTH PASS 9040 5.8 6.5 89 5.0 8.1 62
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Basin wide percent 100 80
LOWER N. PLATTE
CASPER MTN. 7900 -M 5.7 * -M 7.3 *
LAPRELE CREEK 8375 1.1 3.9 28 2.9 5.9 49
RENO HILL 8400 1.9 5.7 33 3.3 7.0 47
WINDY PEAK 7900 .9 3.0 30 3.4 5.1 67
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Basin wide percent 31 53
LARAMIE RIVER
BROOKLYN LAKE 10240 6.7 7.7 87 6.6 9.1 73
CINNABAR PARK 9574 6.4 8.7 74 7.4 11.2 66
CROW CREEK 8330 2.4 4.3 56 3.7 5.4 69
DEADMAN HILL 10220 6.0 7.1 85 5.8 7.6 76
RAWAH 9020 3.8 -M * 6.5 -M *
ROACH 9700 5.5 6.8 81 6.9 8.8 78
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Basin wide percent 78 72
S. PLATTE
BLACK MOUNTAIN 8920 3.1 -M * 4.4 -M *
CROW CREEK 8330 2.4 4.3 56 3.7 5.4 69
DEADMAN HILL 10220 6.0 7.1 85 5.8 7.6 76
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Basin wide percent 74 73
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 2.8 3.9 72 4.8 6.8 71
DIVIDE PEAK 8880 6.3 8.3 76 8.2 10.1 81
ELK RIVER 8700 5.6 6.5 86 6.5 8.9 73
LITTLE SNAKE RIVER 8915 8.3 8.7 95 11.9 14.5 82
OLD BATTLE 10000 11.7 12.3 95 12.8 16.0 80
SAGE CREEK BASIN 7850 5.1 5.6 91 5.6 7.2 78
SANDSTONE RS 8150 5.7 4.2 136 5.9 8.3 71
WHISKEY PARK 8950 8.9 9.3 96 10.7 11.7 91
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Basin wide percent 93 80
UPPER GREEN RIVER
BIG SANDY OPENING 9080 6.2 5.7 109 6.9 6.1 113
BLIND BULL SUM 8650 10.1 8.9 113 8.4 9.1 92
EAST RIM DIVIDE 7930 4.5 4.2 107 4.8 5.4 89
ELKHART PARK G.S. 9400 5.6 5.6 100 6.3 6.3 100
GROS VENTRE SUMMIT 8750 6.2 6.0 103 6.6 6.0 110
GUNSIGHT PASS 9820 6.7 5.9 114 7.0 6.3 111
KENDALL R.S. 7740 5.9 4.7 126 7.2 6.4 112
LOOMIS PARK 8240 6.5 6.4 102 7.7 8.0 96
NEW FORK LAKE 8340 3.7 4.4 84 3.9 5.0 78
POCKET CREEK 9360 7.2 -M * 7.2 -M *
SNIDER BASIN 8060 4.6 5.0 92 6.6 6.4 103
SPRING CREEK DIVIDE 9000 10.6 9.7 109 11.0 10.5 105
TRIPLE PEAK 8500 8.8 8.0 110 11.2 10.7 105
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Basin wide percent 107 102
LOWER GREEN RIVER
BLACKS FORK JCT 8870 3.5 -M * 5.8 -M *
BUCK PASTURE 9700 5.8 -M * 8.3 -M *
EF BLACKS FORK GS 9308 7.0 -M * 5.1 -M *
HAMS FORK 7840 4.8 4.4 109 5.2 5.0 104
HEWINTA 9519 4.3 3.6 119 6.2 6.3 98
HICKERSON PARK 9145 2.8 2.8 100 4.4 4.9 90
HOLE-IN-ROCK 9150 4.5 2.9 155 5.3 4.6 115
INDIAN CREEK 9425 10.3 9.9 104 9.4 9.6 98
KELLEY R.S. 8180 6.5 6.1 107 7.7 8.2 94
SPIRIT LK 10223 4.8 4.5 107 7.9 9.0 88
STEEL CREEK PARK 10200 5.1 6.1 84 7.1 7.4 96
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Basin wide percent 107 97
UPPER BEAR RIVER
BEAR RIVER RS 8500 4.1 -M * 6.1 -M *
BUG LAKE 7950 8.0 6.2 129 9.6 8.8 109
BURTS MILLER RANCH 8000 3.2 2.4 133 4.1 5.1 80
CHALK CREEK #1 8993 9.4 9.6 98 11.9 11.3 105
HAYDEN FORK 9212 5.4 5.7 95 8.6 9.3 92
KELLEY R.S. 8180 6.5 6.1 107 7.7 8.2 94
LILY LAKE 9156 4.8 5.0 96 6.4 7.8 82
MONTE CRISTO 8960 9.8 9.8 100 12.6 11.4 111
SALT RIVER SUMMIT 7760 5.0 4.7 106 8.1 7.3 111
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Basin wide percent 105 100
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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 wide percent 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.
Reference period for comparison of conditions is 1981-2010.
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.
