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 MONDAY: NOVEMBER 26 , 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 1.7 3.3 52 8.1 5.2 156
COTTONWOOD CREEK 7670 2.3 3.7 62 6.3 6.9 91
GRANITE CREEK 6770 .8 2.7 30 6.8 4.6 148
GRASSY LAKE 7265 4.0 6.2 65 11.7 8.2 143
GROS VENTRE SUMMIT 8750 4.0 3.3 121 5.6 3.8 147
LEWIS LAKE DIVIDE 7850 5.6 6.2 90 11.1 8.3 134
PHILLIPS BENCH 8200 4.2 5.2 81 8.6 6.3 137
SALT RIVER SUMMIT 7760 .3 2.0 15 3.0 4.3 70
SNAKE RIVER STATION 6920 .8 3.2 25 8.3 5.5 151
SPRING CREEK DIVIDE 9000 2.8 5.6 50 4.4 6.3 70
THUMB DIVIDE 7980 2.2 3.3 67 6.5 4.6 141
TOGWOTEE PASS 9580 7.5 6.1 123 8.8 6.3 140
TWO OCEAN PLATEAU 9240 10.9 7.2 151 10.6 7.1 149
WILLOW CREEK 8380 2.8 6.3 44 8.7 8.1 107
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Basin wide percent of average 78 127
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 8.3 6.1 136 8.1 5.0 162
BLACK BEAR 8170 7.3 8.1 90 10.4 9.0 116
CANYON 7870 2.8 2.7 104 6.2 4.2 148
FISHER CREEK 9100 11.4 7.7 148 11.5 8.4 137
MADISON PLATEAU 7750 3.8 5.1 75 7.6 6.1 125
NORTHEAST ENTRANCE 7350 .6 1.9 32 5.0 3.5 143
PARKER PEAK 9400 7.2 5.8 124 7.9 4.8 165
SYLVAN LAKE 8420 4.4 5.6 79 8.6 6.1 141
THUMB DIVIDE 7980 2.2 3.3 67 6.5 4.6 141
TWO OCEAN PLATEAU 9240 10.9 7.2 151 10.6 7.1 149
WHISKEY CREEK 6800 1.4 3.1 45 6.6 5.1 129
WHITE MILL 8700 7.7 5.5 140 8.7 6.6 132
WOLVERINE 7650 .6 2.3 26 5.3 3.9 136
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Basin wide percent of average 107 138
WIND RIVER
BURROUGHS CREEK 8750 4.9 3.2 153 7.5 4.2 179
COLD SPRINGS 9630 .9 2.7 33 3.2 3.8 84
DEER PARK 9700 1.7 4.1 41 4.3 6.3 68
HOBBS PARK 10100 1.7 4.6 37 3.7 4.2 88
LITTLE WARM 9370 2.1 2.8 75 4.4 4.0 110
SOUTH PASS 9040 .7 4.2 17 3.3 5.2 63
ST. LAWRENCE ALT 8620 .4 2.2 18 2.0 3.2 62
TOGWOTEE PASS 9580 7.5 6.1 123 8.8 6.3 140
TOWNSEND CREEK 8700 .3 2.5 12 3.1 4.1 76
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Basin wide percent of average 62 98
BIGHORN BASIN
BALD MTN. 9380 3.9 5.2 75 4.3 4.7 91
BEAR TRAP MEADOW 8200 1.2 1.4 86 2.7 3.1 87
BLACKWATER 9780 8.8 6.7 131 8.1 6.2 131
BONE SPRINGS DIV 9350 3.9 4.8 81 4.9 4.5 109
EVENING STAR 9200 7.9 7.0 113 10.7 7.1 151
GRAVE SPRINGS 8550 1.5 2.4 62 3.4 3.3 103
KIRWIN 9550 5.2 3.7 141 6.5 3.7 176
MARQUETTE 8760 .1 3.3 3 4.1 3.8 108
MIDDLE POWDER 7760 1.9 3.1 61 3.3 4.5 73
OWL CREEK 8975 1.6 1.7 94 3.4 2.0 170
POWDER RIVER PASS 9480 2.5 2.8 89 4.5 3.7 122
SHELL CREEK 9580 5.5 4.6 120 6.2 4.0 155
SYLVAN LAKE 8420 4.4 5.6 79 8.6 6.1 141
SYLVAN ROAD 7120 1.1 2.7 41 8.3 5.7 146
TIMBER CREEK 7950 .5 2.1 24 4.2 2.8 150
YOUNTS PEAK 8350 4.5 4.0 112 7.7 4.5 171
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Basin wide percent of average 89 130
SHOSHONE RIVER
BLACKWATER 9780 8.8 6.7 131 8.1 6.2 131
EVENING STAR 9200 7.9 7.0 113 10.7 7.1 151
KIRWIN 9550 5.2 3.7 141 6.5 3.7 176
MARQUETTE 8760 .1 3.3 3 4.1 3.8 108
SYLVAN LAKE 8420 4.4 5.6 79 8.6 6.1 141
SYLVAN ROAD 7120 1.1 2.7 41 8.3 5.7 146
YOUNTS PEAK 8350 4.5 4.0 112 7.7 4.5 171
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Basin wide percent of average 97 146
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.2 1.4 86 2.7 3.1 87
BIG GOOSE 7990 1.8 2.0 90 5.1 2.8 182
BONE SPRINGS DIV 9350 3.9 4.8 81 4.9 4.5 109
BURGESS JUNCTION 7880 2.2 3.1 71 4.3 3.8 113
CLOUD PEAK RESERVOIR 9860 3.9 3.3 118 6.2 4.5 138
DOME LAKE 8880 2.7 3.7 73 5.8 4.5 129
GRAVE SPRINGS 8550 1.5 2.4 62 3.4 3.3 103
HANSEN SAWMILL 8360 -M 1.7 * -M 3.0 *
MIDDLE POWDER 7760 1.9 3.1 61 3.3 4.5 73
POWDER RIVER PASS 9480 2.5 2.8 89 4.5 3.7 122
SUCKER CREEK 8880 2.6 2.8 93 4.7 4.1 115
TIE CREEK 6870 .4 1.1 36 3.9 3.5 111
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Basin wide percent of average 81 115
BELLE FOURCHE
BLIND PARK 6890 1.2 1.7 71 2.2 4.2 52
COLE CANYON 5910 .1 1.8 6 1.9 2.8 68
NORTH RAPID CREEK 6130 1.0 1.4 71 1.6 3.6 44
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Basin wide percent of average 47 54
UPPER N. PLATTE RIVER
COLUMBINE 9160 .5 4.1 12 4.4 5.5 80
DIVIDE PEAK 8880 2.8 4.3 65 3.8 5.5 69
ELK RIVER 8700 .9 2.5 36 3.8 4.6 83
JOE WRIGHT 10120 5.2 5.6 93 6.7 6.9 97
NORTH FRENCH CREEK 10130 4.7 6.9 68 6.2 6.7 93
OLD BATTLE 10000 3.6 7.8 46 5.5 8.0 69
SAGE CREEK BASIN 7850 .1 2.5 4 3.0 3.2 94
SOUTH BRUSH CREEK 8440 1.7 2.4 71 4.7 4.7 100
TOWER 10500 4.2 10.8 39 6.3 9.2 68
WEBBER SPRINGS 9250 2.0 5.6 36 4.6 6.8 68
WILLOW CREEK PASS 9540 3.8 3.1 123 4.2 3.9 108
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Basin wide percent of average 53 82
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 2.4 5.1 47 4.1 5.5 75
CASPER MTN. 7900 1.0 4.1 24 4.3 4.8 90
DEADMAN HILL 10220 4.5 4.5 100 4.1 4.7 87
DEER PARK 9700 1.7 4.1 41 4.3 6.3 68
LAPRELE CREEK 8375 .0 2.8 0 2.6 3.8 68
RENO HILL 8400 2.0 3.7 54 4.4 4.6 96
ROACH 9700 2.5 3.7 68 4.2 4.7 89
SAND LAKE 10050 5.2 8.0 65 6.1 6.3 97
SOUTH PASS 9040 .7 4.2 17 3.3 5.2 63
WINDY PEAK 7900 .6 1.9 32 2.3 3.4 68
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Basin wide percent of average 49 81
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 1.6 0 2.5 3.9 64
DIVIDE PEAK 8880 2.8 4.3 65 3.8 5.5 69
OLD BATTLE 10000 3.6 7.8 46 5.5 8.0 69
SANDSTONE RS 8150 -M 1.9 * 2.7 4.9 55
WHISKEY PARK 8950 2.6 5.2 50 4.9 6.7 73
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Basin wide percent of average 48 67
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.7 3.4 50 2.8 3.8 74
BLIND BULL SUM 8650 3.6 5.8 62 4.6 5.5 84
EAST RIM DIVIDE 7930 .1 2.6 4 2.8 3.1 90
ELKHART PARK G.S. 9400 1.9 2.9 66 3.6 3.9 92
GROS VENTRE SUMMIT 8750 4.0 3.3 121 5.6 3.8 147
KENDALL R.S. 7740 1.3 2.6 50 4.0 3.6 111
LOOMIS PARK 8240 1.8 3.6 50 3.8 4.3 88
NEW FORK LAKE 8340 1.3 2.3 57 3.2 3.4 94
SNIDER BASIN 8060 .5 3.0 17 2.5 3.9 64
SPRING CREEK DIVIDE 9000 2.8 5.6 50 4.4 6.3 70
TRIPLE PEAK 8500 2.8 5.1 55 6.1 5.6 109
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Basin wide percent of average 54 92
LOWER GREEN RIVER
HAMS FORK 7840 .0 2.0 0 1.9 3.1 61
HEWINTA 9519 .0 1.9 0 4.8 4.4 109
HICKERSON PARK 9145 .3 1.3 23 3.1 3.0 103
HOLE-IN-ROCK 9150 .3 1.3 23 3.7 2.8 132
INDIAN CREEK 9425 2.3 5.5 42 3.5 6.0 58
KELLEY R.S. 8180 1.0 3.5 29 3.6 4.9 73
STEEL CREEK PARK 10200 .8 3.5 23 5.2 4.6 113
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Basin wide percent of average 25 90
UPPER BEAR RIVER
BUG LAKE 7950 -M 3.4 * 2.0 5.0 40
HAYDEN FORK 9212 1.2 2.5 48 4.0 5.4 74
KELLEY R.S. 8180 1.0 3.5 29 3.6 4.9 73
LILY LAKE 9156 .4 2.5 16 4.3 5.0 86
MONTE CRISTO 8960 1.1 4.3 26 4.0 6.3 63
SALT RIVER SUMMIT 7760 .3 2.0 15 3.0 4.3 70
TRIAL LAKE 9992 2.1 4.8 44 3.3 5.9 56
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Basin wide percent of average 31 66
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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 1961-90.
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.