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: NOVEMBER 3 , 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 .9 0* 3.4 2.3 148
COTTONWOOD CREEK 7600 1.3 1.2 108* 3.3 3.3 100
GRANITE CREEK 6770 .0 .7 0* 3.1 2.0 155
GRASSY LAKE 7265 .4 1.8 22* 4.2 3.7 114
GROS VENTRE SUMMIT 8775 2.1 1.5 140 1.6 2.0 80
LEWIS LAKE DIVIDE 7860 2.3 1.7 135* 4.2 3.5 120
PHILLIPS BENCH 8200 2.3 1.8 128* 3.5 2.7 130
SALT RIVER SUMMIT 7600 .0 .5 0* 1.7 2.1 81
SNAKE RIVER STATION 6920 .1 .8 12* 2.9 2.6 112
SPRING CREEK DIVIDE 9000 3.4 1.9 179* 3.8 2.8 136
THUMB DIVIDE 7980 .7 1.1 64* 2.3 2.3 100
TOGWOTEE PASS 9580 3.7 3.0 123 3.8 3.1 123
TWO OCEAN PLATEAU 9360 3.9 3.5 111 3.4 3.4 100
WILLOW CREEK 8450 1.0 2.2 45* 4.1 4.1 100
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Basin wide percent of average 94* 114
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.7 3.0 123 3.6 2.2 164
BLACK BEAR 7950 3.7 3.3 112* 5.5 4.1 134
CANYON 7940 1.3 .8 162* 2.2 2.2 100
FISHER CREEK 9100 4.7 3.2 147* 5.1 3.8 134
MADISON PLATEAU 7750 .8 1.9 42* 3.4 2.9 117
NORTHEAST ENTRANCE 7350 .1 .4 25* 1.9 1.8 106
PARKER PEAK 9400 2.3 2.9 79 1.9 2.6 73
SYLVAN LAKE 8420 2.3 2.3 100* 3.5 3.0 117
THUMB DIVIDE 7980 .7 1.1 64* 2.3 2.3 100
TWO OCEAN PLATEAU 9360 3.9 3.5 111 3.4 3.4 100
WHISKEY CREEK 6800 .1 1.0 10* 2.6 2.4 108
WHITE MILL 8700 4.1 2.4 171* 3.9 2.9 134
WOLVERINE 7650 .0 .6 0* 2.3 2.0 115
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Basin wide percent of average 105* 117
WIND RIVER
BURROUGHS CREEK 8750 2.4 1.2 200* 2.5 2.2 114
COLD SPRINGS 9630 .3 1.2 25 .9 2.0 45
DEER PARK 9700 2.0 -M * 2.7 -M *
HOBBS PARK 10100 1.3 2.5 52 1.3 2.6 50
LITTLE WARM 9620 1.6 1.3 123 2.0 2.2 91
SOUTH PASS 9040 .8 1.8 44 2.1 2.3 91
ST. LAWRENCE ALT 8620 .0 1.0 0 .6 1.8 33
TOGWOTEE PASS 9580 3.7 3.0 123 3.8 3.1 123
TOWNSEND CREEK 8700 .0 1.2 0 .5 2.3 22
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Basin wide percent of average 77 74
BIGHORN BASIN
BALD MTN. 9375 4.0 3.0 133 3.8 2.7 141
BEAR TRAP MEADOW 7900 .5 .7 71 2.2 2.0 110
BLACKWATER 9780 3.7 3.5 106 3.1 2.8 111
BONE SPRINGS DIV 9350 3.6 2.9 124 3.8 2.6 146
EVENING STAR 9200 3.8 3.1 123* 4.8 3.4 141
GRAVE SPRINGS 8550 .7 1.3 54 2.4 1.6 150
KIRWIN 9550 1.8 2.1 86 1.9 2.0 95
MARQUETTE 8760 .8 2.1 38 1.1 2.2 50
MIDDLE POWDER 7760 .1 1.5 7 2.3 2.7 85
OWL CREEK 8975 .0 1.0 0 .5 1.3 38
POWDER RIVER PASS 9480 2.3 1.4 164 3.5 2.0 175
SHELL CREEK 9580 3.9 2.9 134 3.6 2.2 164
SYLVAN LAKE 8420 2.3 2.3 100* 3.5 3.0 117
SYLVAN ROAD 8120 .4 .7 57* 3.2 2.2 145
TIMBER CREEK 7950 .0 1.2 0 1.0 1.7 59
YOUNTS PEAK 8350 2.5 1.6 156* 2.6 2.3 113
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Basin wide percent of average 97 118
SHOSHONE RIVER
BLACKWATER 9780 3.7 3.5 106 3.1 2.8 111
EVENING STAR 9200 3.8 3.1 123* 4.8 3.4 141
KIRWIN 9550 1.8 2.1 86 1.9 2.0 95
MARQUETTE 8760 .8 2.1 38 1.1 2.2 50
SYLVAN LAKE 8420 2.3 2.3 100* 3.5 3.0 117
SYLVAN ROAD 8120 .4 .7 57* 3.2 2.2 145
YOUNTS PEAK 8350 2.5 1.6 156* 2.6 2.3 113
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Basin wide percent of average 99* 113
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .5 .7 71 2.2 2.0 110
BIG GOOSE 7990 .7 -M * 3.1 2.7 115
BONE SPRINGS DIV 9350 3.6 2.9 124 3.8 2.6 146
BURGESS JUNCTION 7880 1.3 1.8 72 2.9 2.3 126
CLOUD PEAK RESERVOIR 9860 2.3 1.8 128 4.0 3.0 133
DOME LAKE 8880 2.2 2.1 105 3.8 2.6 146
GRAVE SPRINGS 8550 .7 1.3 54 2.4 1.6 150
HANSEN SAWMILL 8760 .1 1.0 10 2.0 1.9 105
MIDDLE POWDER 7760 .1 1.5 7 2.3 2.7 85
POWDER RIVER PASS 9480 2.3 1.4 164 3.5 2.0 175
SUCKER CREEK 8880 2.3 1.5 153 4.1 2.5 164
TIE CREEK 6870 .0 .9 0 2.8 2.1 133
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Basin wide percent of average 91 132
BELLE FOURCHE
BLIND PARK 6890 .1 .7 14* 2.8 1.9 147
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 14* 137
UPPER N. PLATTE RIVER
COLUMBINE 9400 .3 1.1 27* 2.4 2.7 89
DIVIDE PEAK 8800 .3 2.0 15* 1.6 2.9 55
ELK RIVER 8700 .1 .8 12* 1.9 2.4 79
JOE WRIGHT 10120 .9 3.0 30 2.3 3.7 62
NORTH FRENCH CREEK 10100 2.5 3.6 69 2.2 3.6 61
OLD BATTLE 10000 1.2 3.6 33* 2.8 4.0 70
SOUTH BRUSH CREEK 8400 .1 .9 11* 1.3 2.8 46
TOWER 10500 1.8 4.3 42* 2.7 4.4 61
WEBBER SPRINGS 9200 .6 2.3 26* 2.3 3.4 68
WILLOW CREEK PASS 9540 -M 1.4 * .6 2.2 27
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Basin wide percent of average 36* 63
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.9 2.5 76* 2.8 2.7 104
CASPER MTN. 7900 .5 2.0 25 3.1 2.7 115
DEADMAN HILL 10220 1.1 2.5 44 1.4 2.7 52
DEER PARK 9700 2.0 -M * 2.7 -M *
LAPRELE CREEK 8320 .3 1.2 25 2.8 2.1 133
RENO HILL 8400 .9 2.0 45 3.1 2.7 115
ROACH 9700 .3 1.5 20* 1.3 2.5 52
SAND LAKE 10080 2.8 3.8 74 3.3 3.3 100
SOUTH PASS 9040 .8 1.8 44 2.1 2.3 91
WINDY PEAK 7840 .2 .7 29* 2.3 1.8 128
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Basin wide percent of average 49 97
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .2 .7 29* .7 2.1 33
DIVIDE PEAK 8800 .3 2.0 15* 1.6 2.9 55
OLD BATTLE 10000 1.2 3.6 33* 2.8 4.0 70
SANDSTONE RS 8150 -M .7 * 1.9 2.5 76
WHISKEY PARK 8950 .5 2.1 24* 2.5 3.2 78
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Basin wide percent of average 26* 65
UPPER GREEN RIVER
BIG SANDY OPENING 9100 2.6 1.5 173* 2.4 2.0 120
BLIND BULL SUM 8650 3.7 2.1 176* 3.2 2.5 128
EAST RIM DIVIDE 7930 .3 .8 37* 1.6 1.5 107
ELKHART PARK G.S. 9400 1.8 1.1 164* 2.0 2.2 91
GROS VENTRE SUMMIT 8775 2.1 1.5 140 1.6 2.0 80
KENDALL R.S. 7740 .6 .8 75* 2.4 1.8 133
LOOMIS PARK 8240 2.2 1.2 183* 2.8 2.0 140
NEW FORK LAKE 8340 .6 .7 86* 1.6 1.7 94
SNIDER BASIN 8250 1.1 1.0 110* 2.6 1.8 144
SPRING CREEK DIVIDE 9000 3.4 1.9 179* 3.8 2.8 136
TRIPLE PEAK 8500 3.1 1.6 194* 4.6 2.5 184
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Basin wide percent of average 151* 125
LOWER GREEN RIVER
HAMS FORK 7840 .2 .6 33* 1.1 1.5 73
HEWINTA 9500 -M 1.0 * 2.0 2.6 77
HICKERSON PARK 9150 .0 .6 0* .8 1.8 44
HOLE-IN-ROCK 9150 .0 .6 0* 1.1 1.8 61
INDIAN CREEK 9425 2.3 1.9 121* 2.3 2.9 79
KELLEY R.S. 8180 .2 1.2 17* 1.7 2.3 74
STEEL CREEK PARK 10100 -M -M * 1.4 2.5 56
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Basin wide percent of average 55* 68
UPPER BEAR RIVER
BUG LAKE 7950 .3 1.5 20* 1.5 2.6 58
HAYDEN FORK 9400 .1 1.0 10* 2.5 2.6 96
KELLEY R.S. 8180 .2 1.2 17* 1.7 2.3 74
LILY LAKE 9050 .0 1.1 0* 1.8 2.6 69
MONTE CRISTO 8960 .4 -M * 2.5 3.1 81
SALT RIVER SUMMIT 7600 .0 .5 0* 1.7 2.1 81
TRIAL LAKE 9960 .6 -M * 2.8 3.1 90
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Basin wide percent of average 11* 79
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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.