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 SATURDAY: FEBRUARY 1 , 2014
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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 11.8 10.8 109 13.0 14.1 92
BLACK BEAR 8170 21.5 23.3 92 20.8 25.0 83
BLIND BULL SUM 8650 15.6 13.8 113 11.4 12.9 88
COTTONWOOD CREEK 7670 14.3 12.9 111 16.1 15.9 101
EAST RIM DIVIDE 7930 8.0 6.8 118 6.9 7.7 90
GRAND TARGHEE 9260 27.0 23.6 114 19.7 20.7 95
GRANITE CREEK 6770 9.3 10.6 88 10.4 13.7 76
GRASSY LAKE 7265 19.1 20.3 94 20.3 24.1 84
GROS VENTRE SUMMIT 8750 8.1 8.4 96 7.0 8.3 84
GUNSIGHT PASS 9820 9.4 8.3 113 9.0 8.9 101
LEWIS LAKE DIVIDE 7850 16.1 20.0 80 19.0 23.3 82
PHILLIPS BENCH 8200 14.2 16.0 89 15.1 18.3 83
SALT RIVER SUMMIT 7760 7.6 7.8 97 9.7 10.7 91
SNAKE RIVER STATION 6920 10.2 10.9 94 12.9 15.6 83
SPRING CREEK DIVIDE 9000 15.1 14.4 105 15.2 15.4 99
THUMB DIVIDE 7980 7.7 9.6 80 8.2 12.2 67
TOGWOTEE PASS 9580 16.0 15.0 107 15.9 15.9 100
TWO OCEAN PLATEAU 9240 19.7 17.6 112 16.2 17.4 93
WILLOW CREEK 8380 17.4 17.1 102 20.6 21.7 95
YOUNTS PEAK 8350 -M 9.6 * -M 10.5 *
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Basin Index (%) 100 89
MADISON-GALLATIN
BLACK BEAR 8170 21.5 23.3 92 20.8 25.0 83
CANYON 7870 7.8 8.2 95 9.3 10.8 86
MADISON PLATEAU 7750 12.2 14.1 87 13.0 17.4 75
WEST YELLOWSTONE 6700 7.0 7.0 100 8.1 9.7 84
WHISKEY CREEK 6800 8.7 9.6 91 10.6 13.3 80
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Basin Index (%) 92 81
YELLOWSTONE
BEARTOOTH LAKE 9360 15.1 13.9 109 13.6 12.9 105
BURNT MTN 5880 5.8 2.4 242 11.8 7.8 151
CANYON 7870 7.8 8.2 95 9.3 10.8 86
COLE CREEK 7850 12.7 8.4 151 8.7 7.6 114
EVENING STAR 9200 21.1 16.4 129 21.6 18.0 120
FISHER CREEK 9100 22.7 20.6 110 19.7 20.9 94
NORTHEAST ENTRANCE 7350 7.3 6.4 114 8.0 8.3 96
PARKER PEAK 9400 16.8 13.0 129 15.4 11.4 135
SYLVAN LAKE 8420 13.4 13.0 103 15.6 15.0 104
THUMB DIVIDE 7980 7.7 9.6 80 8.2 12.2 67
TWO OCEAN PLATEAU 9240 19.7 17.6 112 16.2 17.4 93
WHITE MILL 8700 17.0 14.6 116 14.5 15.5 94
WOLVERINE 7650 9.5 7.1 134 7.8 8.2 95
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Basin Index (%) 117 103
WIND RIVER
BURROUGHS CREEK 8750 -M 8.4 * -M 10.5 *
CASTLE CREEK 8400 4.4 -M * 5.8 -M *
COLD SPRINGS 9630 5.8 4.5 129 7.6 6.2 123
DEER PARK 9700 5.7 9.4 61 8.1 12.3 66
HOBBS PARK 10100 7.9 8.0 99 6.9 7.8 88
KIRWIN 9550 8.9 5.9 151 7.9 7.2 110
LITTLE WARM 9370 7.3 6.4 114 8.6 8.2 105
OWL CREEK 8975 4.0 3.1 129 3.8 3.6 106
SOUTH PASS 9040 7.1 8.9 80 6.6 11.0 60
ST. LAWRENCE ALT 8620 -M 4.2 * 5.1 5.3 96
TOGWOTEE PASS 9580 16.0 15.0 107 15.9 15.9 100
TOWNSEND CREEK 8700 3.7 5.2 71 4.4 7.1 62
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Basin Index (%) 100 89
BIGHORN BASIN
BALD MTN. 9380 15.5 10.8 144 11.5 10.7 107
BEAR TRAP MEADOW 8200 6.4 3.4 188 6.8 5.2 131
BONE SPRINGS DIV 9350 12.2 9.8 124 8.9 9.6 93
GRAVE SPRINGS 8550 7.6 4.9 155 8.2 6.4 128
KIRWIN 9550 8.9 5.9 151 7.9 7.2 110
MARQUETTE 8760 5.2 -M * 7.2 -M *
MIDDLE POWDER 7760 10.7 6.3 170 8.9 7.4 120
OWL CREEK 8975 4.0 3.1 129 3.8 3.6 106
POWDER RIVER PASS 9480 9.5 6.5 146 9.8 7.9 124
SHELL CREEK 9580 11.0 9.1 121 9.1 9.0 101
TIMBER CREEK 7950 3.8 2.9 131 5.5 4.5 122
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Basin Index (%) 143 112
SHOSHONE RIVER
BLACKWATER 9780 16.9 14.8 114 14.3 13.3 108
EVENING STAR 9200 21.1 16.4 129 21.6 18.0 120
MARQUETTE 8760 5.2 -M * 7.2 -M *
SYLVAN ROAD 7120 8.3 7.8 106 12.2 11.9 103
YOUNTS PEAK 8350 -M 9.6 * -M 10.5 *
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Basin Index (%) 119 111
POWDER RIVER
BEAR TRAP MEADOW 8200 6.4 3.4 188 6.8 5.2 131
CLOUD PEAK RESERVOIR 9860 11.5 8.3 139 10.0 7.9 127
GRAVE SPRINGS 8550 7.6 4.9 155 8.2 6.4 128
HANSEN SAWMILL 8360 4.7 4.0 118 6.8 5.1 133
MIDDLE POWDER 7760 10.7 6.3 170 8.9 7.4 120
POWDER RIVER PASS 9480 9.5 6.5 146 9.8 7.9 124
SOLDIER PARK 8720 5.1 -M * 6.4 -M *
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Basin Index (%) 151 127
TONGUE RIVER
BIG GOOSE 7990 5.5 4.9 112 7.7 6.5 118
BONE SPRINGS DIV 9350 12.2 9.8 124 8.9 9.6 93
BURGESS JUNCTION 7880 8.6 6.6 130 9.4 7.5 125
DOME LAKE 8880 6.5 6.8 96 6.7 8.4 80
LITTLE GOOSE 8870 6.4 -M * 8.9 -M *
SUCKER CREEK 8880 10.1 7.1 142 11.1 8.7 128
TIE CREEK 6870 4.4 3.4 129 9.0 7.1 127
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Basin Index (%) 123 110
BELLE FOURCHE
COLE CANYON 5910 4.1 3.2 128 10.7 5.6 191
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Basin Index (%) 128 191
CHEYENNE RIVER BASIN
BLIND PARK 6890 6.5 4.6 141 13.2 7.7 171
NORTH RAPID CREEK 6130 6.3 4.3 147 11.8 6.2 190
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Basin Index (%) 144 180
UPPER N. PLATTE
ARAPAHO RIDGE 10960 15.1 13.2 114 15.0 14.1 106
BLACKHALL MTN 9820 20.6 -M * 21.7 -M *
COLUMBINE 9160 19.2 14.7 131 18.1 16.4 110
DIVIDE PEAK 8880 11.4 12.3 93 15.1 13.6 111
JOE WRIGHT 10120 11.6 13.0 89 16.3 16.0 102
LAPRELE CREEK 8375 4.7 5.4 87 6.5 7.5 87
MED BOW 10500 18.4 -M * 24.1 -M *
NORTH FRENCH CREEK 10130 20.5 16.0 128 21.5 16.8 128
NEVER SUMMER 10280 13.3 12.6 106 11.5 -M *
OLD BATTLE 10000 19.4 19.1 102 22.4 22.4 100
RAWAH 9020 8.8 6.2 142 11.5 9.0 128
SAGE CREEK BASIN 7850 6.7 8.4 80 8.3 9.8 85
SAND LAKE 10050 19.1 16.5 116 18.8 15.1 125
SOUTH BRUSH CREEK 8440 7.6 7.3 104 10.3 9.5 108
TOWER 10500 29.1 27.5 106 27.2 25.5 107
WEBBER SPRINGS 9250 14.2 13.7 104 16.9 17.0 99
WILLOW CREEK PASS 9540 8.2 7.6 108 9.2 8.3 111
ZIRKEL 9340 20.6 18.5 111 20.6 19.0 108
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Basin Index (%) 108 108
SWEETWATER
DEER PARK 9700 5.7 9.4 61 8.1 12.3 66
LARSEN CREEK 9000 4.4 -M * 6.9 -M *
SOUTH PASS 9040 7.1 8.9 80 6.6 11.0 60
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Basin Index (%) 70 63
LOWER N. PLATTE
CASPER MTN. 7900 -M 7.5 * -M 9.0 *
LAPRELE CREEK 8375 4.7 5.4 87 6.5 7.5 87
RENO HILL 8400 11.0 7.7 143 13.1 8.9 147
WINDY PEAK 7900 4.0 4.2 95 6.7 6.4 105
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Basin Index (%) 114 115
LARAMIE RIVER
BROOKLYN LAKE 10240 16.6 12.0 138 14.8 12.9 115
CINNABAR PARK 9574 14.5 13.2 110 18.1 15.8 115
CROW CREEK 8330 5.6 5.7 98 7.4 6.4 116
DEADMAN HILL 10220 14.1 10.1 140 13.8 10.2 135
RAWAH 9020 8.8 6.2 142 11.5 9.0 128
ROACH 9700 10.9 10.0 109 13.5 11.8 114
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Basin Index (%) 123 120
S. PLATTE
BLACK MOUNTAIN 8920 7.7 -M * 9.1 -M *
CROW CREEK 8330 5.6 5.7 98 7.4 6.4 116
DEADMAN HILL 10220 14.1 10.1 140 13.8 10.2 135
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Basin Index (%) 125 128
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 7.6 7.1 107 11.8 9.6 123
DIVIDE PEAK 8880 11.4 12.3 93 15.1 13.6 111
ELK RIVER 8700 12.7 11.2 113 14.6 12.8 114
LITTLE SNAKE RIVER 8915 17.3 15.5 112 20.6 20.6 100
OLD BATTLE 10000 19.4 19.1 102 22.4 22.4 100
SAGE CREEK BASIN 7850 6.7 8.4 80 8.3 9.8 85
SANDSTONE RS 8150 8.1 8.0 101 12.5 12.0 104
WHISKEY PARK 8950 23.9 16.0 149 25.6 17.9 143
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Basin Index (%) 110 110
UPPER GREEN RIVER
BIG SANDY OPENING 9080 6.6 8.2 80 6.3 8.4 75
BLIND BULL SUM 8650 15.6 13.8 113 11.4 12.9 88
EAST RIM DIVIDE 7930 8.0 6.8 118 6.9 7.7 90
ELKHART PARK G.S. 9400 8.4 7.5 112 7.7 8.5 91
GROS VENTRE SUMMIT 8750 8.1 8.4 96 7.0 8.3 84
GUNSIGHT PASS 9820 9.4 8.3 113 9.0 8.9 101
KENDALL R.S. 7740 8.4 7.8 108 9.1 9.3 98
LOOMIS PARK 8240 9.8 9.5 103 11.1 11.3 98
NEW FORK LAKE 8340 6.6 6.8 97 5.6 7.1 79
POCKET CREEK 9360 5.1 -M * 5.9 -M *
SNIDER BASIN 8060 8.9 7.5 119 9.1 9.2 99
SPRING CREEK DIVIDE 9000 15.1 14.4 105 15.2 15.4 99
TRIPLE PEAK 8500 14.8 13.3 111 16.8 16.1 104
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Basin Index (%) 107 94
LOWER GREEN RIVER
BLACKS FORK JCT 8870 3.8 -M * 7.2 -M *
BUCK PASTURE 9700 6.7 -M * 9.1 -M *
EF BLACKS FORK GS 9360 3.0 -M * 6.1 -M *
HAMS FORK 7840 6.3 7.1 89 6.6 7.3 90
HEWINTA 9519 4.3 5.7 75 7.6 8.6 88
HICKERSON PARK 9145 4.7 3.8 124 6.0 6.1 98
HOLE-IN-ROCK 9150 4.1 4.0 102 5.9 5.7 104
INDIAN CREEK 9425 12.4 14.6 85 11.4 14.0 81
KELLEY R.S. 8180 8.5 9.0 94 10.2 11.6 88
SPIRIT LK 10235 5.9 -M * 9.0 -M *
STEEL CREEK PARK 10200 6.3 8.7 72 9.5 9.9 96
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Basin Index (%) 88 91
UPPER BEAR RIVER
BEAR RIVER RS 8777 4.6 -M * 7.1 -M *
BUG LAKE 7950 9.6 10.7 90 9.5 12.4 77
BURTS MILLER RANCH 8000 3.8 -M * 4.0 -M *
CHALK CREEK #1 8993 11.5 13.4 86 12.6 15.7 80
HAYDEN FORK 9212 7.3 8.6 85 10.9 13.1 83
KELLEY R.S. 8180 8.5 9.0 94 10.2 11.6 88
LILY LAKE 9156 7.4 7.4 100 9.2 10.7 86
MONTE CRISTO 8960 12.0 16.0 75 11.9 16.3 73
SALT RIVER SUMMIT 7760 7.6 7.8 97 9.7 10.7 91
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Basin Index (%) 88 82
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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.
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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.