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: NOVEMBER 4 , 2001
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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 .0 1.0 0* 3.4 2.4 142
COTTONWOOD CREEK 7600 1.1 1.3 85* 3.3 3.5 94
GRANITE CREEK 6770 -M .8 * -M 2.1 *
GRASSY LAKE 7265 .4 2.0 20* 4.2 3.9 108
GROS VENTRE SUMMIT 8775 1.9 1.6 119 1.6 2.0 80
LEWIS LAKE DIVIDE 7860 2.2 1.8 122* 4.2 3.8 111
PHILLIPS BENCH 8200 2.3 1.9 121* 3.5 2.9 121
SALT RIVER SUMMIT 7600 .0 .6 0* 1.8 2.2 82
SNAKE RIVER STATION 6920 .1 .9 11* 2.9 2.7 107
SPRING CREEK DIVIDE 9000 3.5 2.0 175* 3.8 3.0 127
THUMB DIVIDE 7980 .8 1.2 67* 2.3 2.4 96
TOGWOTEE PASS 9580 3.6 3.1 116 3.8 3.2 119
TWO OCEAN PLATEAU 9360 3.8 3.7 103 3.4 3.6 94
WILLOW CREEK 8450 1.0 2.4 42* 4.2 4.2 100
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Basin wide percent of average 88* 107
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.7 3.1 119 3.6 2.4 150
BLACK BEAR 7950 3.8 3.5 109* 5.6 4.4 127
CANYON 7940 1.2 .9 133* 2.2 2.3 96
FISHER CREEK 9100 4.6 3.3 139* 5.0 3.9 128
MADISON PLATEAU 7750 .8 2.0 40* 3.4 3.0 113
NORTHEAST ENTRANCE 7350 .0 .5 0* 1.9 1.8 106
PARKER PEAK 9400 2.3 3.0 77 .0 2.7 0
SYLVAN LAKE 8420 2.2 2.4 92* 3.5 3.2 109
THUMB DIVIDE 7980 .8 1.2 67* 2.3 2.4 96
TWO OCEAN PLATEAU 9360 3.8 3.7 103 3.4 3.6 94
WHISKEY CREEK 6800 .2 1.0 20* 2.6 2.6 100
WHITE MILL 8700 4.0 2.5 160* 3.9 3.1 126
WOLVERINE 7650 .0 .7 0* 2.1 2.0 105
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Basin wide percent of average 99* 106
WIND RIVER
BURROUGHS CREEK 8750 2.3 1.3 177* 2.5 2.3 109
COLD SPRINGS 9630 .3 1.3 23 .9 2.1 43
DEER PARK 9700 2.0 -M * 2.7 -M *
HOBBS PARK 10100 1.3 2.6 50 1.2 2.6 46
LITTLE WARM 9620 1.6 1.3 123 1.9 2.2 86
SOUTH PASS 9040 .8 1.9 42 2.0 2.4 83
ST. LAWRENCE ALT 8620 .1 1.1 9 .6 1.9 32
TOGWOTEE PASS 9580 3.6 3.1 116 3.8 3.2 119
TOWNSEND CREEK 8700 .0 1.3 0 .5 2.4 21
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Basin wide percent of average 72 70
BIGHORN BASIN
BALD MTN. 9375 4.0 3.2 125 3.9 2.8 139
BEAR TRAP MEADOW 7900 .4 .7 57 2.2 2.0 110
BLACKWATER 9780 3.7 3.6 103 3.2 2.9 110
BONE SPRINGS DIV 9350 3.6 3.0 120 3.8 2.6 146
EVENING STAR 9200 3.7 3.3 112* 4.7 3.6 131
GRAVE SPRINGS 8550 .6 1.4 43 2.4 1.7 141
KIRWIN 9550 1.8 2.1 86 1.9 2.1 90
MARQUETTE 8760 .9 2.2 41 1.0 2.3 43
MIDDLE POWDER 7760 .1 1.6 6 2.3 2.8 82
OWL CREEK 8975 .1 1.0 10 .5 1.3 38
POWDER RIVER PASS 9480 2.3 1.5 153 3.5 2.1 167
SHELL CREEK 9580 3.9 3.0 130 3.6 2.2 164
SYLVAN LAKE 8420 2.2 2.4 92* 3.5 3.2 109
SYLVAN ROAD 8120 .3 .8 37* 3.3 2.4 138
TIMBER CREEK 7950 .0 1.3 0 1.0 1.8 56
YOUNTS PEAK 8350 2.4 1.7 141* 2.4 2.4 100
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Basin wide percent of average 91 113
SHOSHONE RIVER
BLACKWATER 9780 3.7 3.6 103 3.2 2.9 110
EVENING STAR 9200 3.7 3.3 112* 4.7 3.6 131
KIRWIN 9550 1.8 2.1 86 1.9 2.1 90
MARQUETTE 8760 .9 2.2 41 1.0 2.3 43
SYLVAN LAKE 8420 2.2 2.4 92* 3.5 3.2 109
SYLVAN ROAD 8120 .3 .8 37* 3.3 2.4 138
YOUNTS PEAK 8350 2.4 1.7 141* 2.4 2.4 100
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Basin wide percent of average 93* 106
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .4 .7 57 2.2 2.0 110
BIG GOOSE 7990 .8 -M * 3.1 2.7 115
BONE SPRINGS DIV 9350 3.6 3.0 120 3.8 2.6 146
BURGESS JUNCTION 7880 1.3 1.8 72 2.9 2.4 121
CLOUD PEAK RESERVOIR 9860 2.4 1.8 133 4.0 3.1 129
DOME LAKE 8880 2.2 2.2 100 3.8 2.7 141
GRAVE SPRINGS 8550 .6 1.4 43 2.4 1.7 141
HANSEN SAWMILL 8760 .1 1.0 10 2.1 1.9 111
MIDDLE POWDER 7760 .1 1.6 6 2.3 2.8 82
POWDER RIVER PASS 9480 2.3 1.5 153 3.5 2.1 167
SUCKER CREEK 8880 2.3 1.6 144 4.1 2.6 158
TIE CREEK 6870 .0 1.0 0 2.8 2.1 133
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Basin wide percent of average 87 129
BELLE FOURCHE
BLIND PARK 6890 .1 .8 12* 2.8 2.0 140
COLE CANYON 5910 .0 -M * 1.4 -M *
NORTH RAPID CREEK 6130 .3 -M * 2.4 1.9 126
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Basin wide percent of average 12* 133
UPPER N. PLATTE RIVER
COLUMBINE 9400 .3 1.3 23* 2.5 2.8 89
DIVIDE PEAK 8800 .3 2.1 14 1.7 3.0 57
ELK RIVER 8700 .1 .9 11* 1.9 2.5 76
JOE WRIGHT 10120 -M 3.1 * 2.2 3.8 58
NORTH FRENCH CREEK 10100 2.4 3.7 65 2.2 3.7 59
OLD BATTLE 10000 1.3 3.7 35 2.8 4.2 67
SOUTH BRUSH CREEK 8400 .1 1.0 10* 1.3 2.8 46
TOWER 10500 1.8 4.6 39* 2.7 4.6 59
WEBBER SPRINGS 9200 .6 2.4 25* 2.3 3.5 66
WILLOW CREEK PASS 9540 .0 1.5 0 .5 2.2 23
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Basin wide percent of average 33* 61
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.9 2.6 73* 2.8 2.9 97
CASPER MTN. 7900 .6 2.1 29 3.1 2.8 111
DEADMAN HILL 10220 .8 2.6 31 1.4 2.8 50
DEER PARK 9700 2.0 -M * 2.7 -M *
LAPRELE CREEK 8320 .4 1.3 31 2.8 2.1 133
RENO HILL 8400 .9 2.0 45 3.1 2.8 111
ROACH 9700 .3 1.6 19* 1.3 2.6 50
SAND LAKE 10080 2.7 4.0 68 3.3 3.4 97
SOUTH PASS 9040 .8 1.9 42 2.0 2.4 83
WINDY PEAK 7840 .2 .8 25* 2.2 1.9 116
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Basin wide percent of average 46 93
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 .7 14* .6 2.1 29
DIVIDE PEAK 8800 .3 2.1 14 1.7 3.0 57
OLD BATTLE 10000 1.3 3.7 35 2.8 4.2 67
SANDSTONE RS 8150 -M .8 * 1.8 2.6 69
WHISKEY PARK 8950 .6 2.2 27* 2.5 3.4 74
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Basin wide percent of average 26* 61
UPPER GREEN RIVER
BIG SANDY OPENING 9100 2.7 1.5 180 2.3 2.0 115
BLIND BULL SUM 8650 3.6 2.2 164* 3.2 2.6 123
EAST RIM DIVIDE 7930 .3 .9 33* 1.6 1.6 100
ELKHART PARK G.S. 9400 -M 1.1 * -M 2.2 *
GROS VENTRE SUMMIT 8775 1.9 1.6 119 1.6 2.0 80
KENDALL R.S. 7740 .6 .9 67* 2.4 1.8 133
LOOMIS PARK 8240 2.0 1.3 154* 2.8 2.1 133
NEW FORK LAKE 8340 .6 .8 75* 1.6 1.8 89
SNIDER BASIN 8250 -M 1.0 * 2.6 1.9 137
SPRING CREEK DIVIDE 9000 3.5 2.0 175* 3.8 3.0 127
TRIPLE PEAK 8500 3.1 1.7 182* 4.6 2.6 177
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Basin wide percent of average 142* 124
LOWER GREEN RIVER
HAMS FORK 7840 .1 .6 17* 1.1 1.6 69
HEWINTA 9500 -M 1.0 * 2.1 2.6 81
HICKERSON PARK 9150 .0 .6 0* .9 1.8 50
HOLE-IN-ROCK 9150 .1 .6 17* 1.3 1.8 72
INDIAN CREEK 9425 2.2 2.0 110* 2.3 3.0 77
KELLEY R.S. 8180 .2 1.3 15* 1.7 2.5 68
STEEL CREEK PARK 10100 -M -M * 1.4 2.6 54
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Basin wide percent of average 51* 68
UPPER BEAR RIVER
BUG LAKE 7950 .3 1.5 20* 1.5 2.7 56
HAYDEN FORK 9400 .1 1.1 9* 2.5 2.8 89
KELLEY R.S. 8180 .2 1.3 15* 1.7 2.5 68
LILY LAKE 9050 .0 1.2 0* 1.8 2.7 67
MONTE CRISTO 8960 .5 -M * 2.6 3.2 81
SALT RIVER SUMMIT 7600 .0 .6 0* 1.8 2.2 82
TRIAL LAKE 9960 .6 -M * 2.8 3.2 87
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Basin wide percent of average 11* 76
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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.