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 THURSDAY: NOVEMBER 1 , 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 .2 .7 29* 3.2 2.0 160
COTTONWOOD CREEK 7600 1.3 1.0 130* 3.2 3.0 107
GRANITE CREEK 6770 .1 .6 17* 3.0 1.8 167
GRASSY LAKE 7265 .6 1.5 40* 4.2 3.3 127
GROS VENTRE SUMMIT 8775 1.8 1.4 129* 1.5 1.8 83
LEWIS LAKE DIVIDE 7860 2.2 1.3 169* 4.1 3.1 132
PHILLIPS BENCH 8200 2.4 1.5 160* 3.4 2.4 142
SALT RIVER SUMMIT 7600 .0 .4 0* 1.7 1.9 89
SNAKE RIVER STATION 6920 .1 .6 17* 2.9 2.3 126
SPRING CREEK DIVIDE 9000 3.3 1.6 206* 3.7 2.5 148
THUMB DIVIDE 7980 .8 .9 89* 2.3 2.1 110
TOGWOTEE PASS 9580 3.6 2.7 133* 3.6 2.8 129
TWO OCEAN PLATEAU 9360 3.8 3.2 119 3.3 3.1 106
WILLOW CREEK 8450 1.0 1.9 53* 4.0 3.7 108
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Basin wide percent of average 110* 123
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.5 2.7 130 3.4 2.0 170
BLACK BEAR 7950 3.8 2.9 131* 5.5 3.7 149
CANYON 7940 1.3 .7 186* 2.1 2.0 105
FISHER CREEK 9100 4.5 2.8 161* 4.9 3.4 144
MADISON PLATEAU 7750 .9 1.7 53* 3.4 2.6 131
NORTHEAST ENTRANCE 7350 .1 .3 33* 1.7 1.6 106
PARKER PEAK 9400 2.3 2.6 88 1.8 2.4 75
SYLVAN LAKE 8420 2.3 2.0 115* 3.4 2.7 126
THUMB DIVIDE 7980 .8 .9 89* 2.3 2.1 110
TWO OCEAN PLATEAU 9360 3.8 3.2 119 3.3 3.1 106
WHISKEY CREEK 6800 .2 .8 25* 2.6 2.2 118
WHITE MILL 8700 3.8 2.1 181* 3.6 2.6 138
WOLVERINE 7650 .0 .5 0* 1.9 1.8 106
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Basin wide percent of average 118* 124
WIND RIVER
BURROUGHS CREEK 8750 2.3 1.0 230* 2.5 2.0 125
COLD SPRINGS 9630 .2 1.1 18 .9 1.9 47
DEER PARK 9700 2.0 -M * 2.6 -M *
HOBBS PARK 10100 1.3 2.3 57 1.2 2.4 50
LITTLE WARM 9620 1.5 1.1 136* 1.9 2.0 95
SOUTH PASS 9040 .8 1.6 50* 2.0 2.1 95
ST. LAWRENCE ALT 8620 .0 .9 0 .6 1.7 35
TOGWOTEE PASS 9580 3.6 2.7 133* 3.6 2.8 129
TOWNSEND CREEK 8700 .0 1.1 0 .5 2.2 23
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Basin wide percent of average 82* 77
BIGHORN BASIN
BALD MTN. 9375 3.9 2.8 139 3.8 2.5 152
BEAR TRAP MEADOW 7900 .5 .6 83 2.1 1.9 111
BLACKWATER 9780 3.0 3.2 94 2.6 2.5 104
BONE SPRINGS DIV 9350 3.6 2.7 133 3.8 2.4 158
EVENING STAR 9200 3.5 2.8 125* 4.4 3.1 142
GRAVE SPRINGS 8550 .6 1.2 50 2.4 1.5 160
KIRWIN 9550 1.7 1.9 89 1.8 1.9 95
MARQUETTE 8760 .8 2.0 40 1.1 2.1 52
MIDDLE POWDER 7760 -M 1.3 * 2.4 2.6 92
OWL CREEK 8975 .0 .9 0 .5 1.2 42
POWDER RIVER PASS 9480 2.3 1.3 177 3.4 1.9 179
SHELL CREEK 9580 3.8 2.7 141 3.6 2.0 180
SYLVAN LAKE 8420 2.3 2.0 115* 3.4 2.7 126
SYLVAN ROAD 8120 .4 .5 80* 3.1 1.9 163
TIMBER CREEK 7950 .0 1.1 0 1.0 1.6 62
YOUNTS PEAK 8350 2.4 1.4 171* 2.4 2.1 114
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Basin wide percent of average 106 123
SHOSHONE RIVER
BLACKWATER 9780 3.0 3.2 94 2.6 2.5 104
EVENING STAR 9200 3.5 2.8 125* 4.4 3.1 142
KIRWIN 9550 1.7 1.9 89 1.8 1.9 95
MARQUETTE 8760 .8 2.0 40 1.1 2.1 52
SYLVAN LAKE 8420 2.3 2.0 115* 3.4 2.7 126
SYLVAN ROAD 8120 .4 .5 80* 3.1 1.9 163
YOUNTS PEAK 8350 2.4 1.4 171* 2.4 2.1 114
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Basin wide percent of average 102* 115
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .5 .6 83 2.1 1.9 111
BIG GOOSE 7990 .6 -M * 3.1 2.6 119
BONE SPRINGS DIV 9350 3.6 2.7 133 3.8 2.4 158
BURGESS JUNCTION 7880 1.2 1.6 75 3.0 2.2 136
CLOUD PEAK RESERVOIR 9860 2.3 1.6 144* 4.0 2.9 138
DOME LAKE 8880 2.3 1.9 121 3.7 2.5 148
GRAVE SPRINGS 8550 .6 1.2 50 2.4 1.5 160
HANSEN SAWMILL 8760 .0 .9 0 2.0 1.8 111
MIDDLE POWDER 7760 -M 1.3 * 2.4 2.6 92
POWDER RIVER PASS 9480 2.3 1.3 177 3.4 1.9 179
SUCKER CREEK 8880 2.4 1.4 171 4.1 2.4 171
TIE CREEK 6870 .0 .9 0 2.8 2.0 140
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Basin wide percent of average 108 138
BELLE FOURCHE
BLIND PARK 6890 .0 .6 0* 2.8 1.8 156
COLE CANYON 5910 .0 -M * 1.8 -M *
NORTH RAPID CREEK 6130 .2 -M * 2.4 1.8 133
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Basin wide percent of average 0* 144
UPPER N. PLATTE RIVER
COLUMBINE 9400 .5 .9 56* 2.3 2.4 96
DIVIDE PEAK 8800 .3 1.8 17* 1.5 2.7 56
ELK RIVER 8700 .1 .7 14* 1.8 2.2 82
JOE WRIGHT 10120 .4 2.7 15 2.3 3.4 68
NORTH FRENCH CREEK 10100 2.5 3.3 76* 2.2 3.3 67
OLD BATTLE 10000 1.4 3.2 44* 2.6 3.6 72
SOUTH BRUSH CREEK 8400 .1 .8 12* 1.5 2.6 58
TOWER 10500 -M 3.7 * -M 4.0 *
WEBBER SPRINGS 9200 .6 2.0 30* 2.3 3.1 74
WILLOW CREEK PASS 9540 .0 1.2 0* .8 2.0 40
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Basin wide percent of average 36* 68
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.8 2.3 78* 2.8 2.5 112
CASPER MTN. 7900 .5 1.8 28 3.1 2.5 124
DEADMAN HILL 10220 .8 2.3 35 1.4 2.5 56
DEER PARK 9700 2.0 -M * 2.6 -M *
LAPRELE CREEK 8320 .3 1.1 27 2.8 1.9 147
RENO HILL 8400 .9 1.8 50 3.2 2.5 128
ROACH 9700 .3 1.3 23* 1.4 2.3 61
SAND LAKE 10080 2.9 3.4 85* 3.3 3.0 110
SOUTH PASS 9040 .8 1.6 50* 2.0 2.1 95
WINDY PEAK 7840 .2 .6 33* 2.3 1.7 135
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Basin wide percent of average 52* 106
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .2 .6 33* .8 1.9 42
DIVIDE PEAK 8800 .3 1.8 17* 1.5 2.7 56
OLD BATTLE 10000 1.4 3.2 44* 2.6 3.6 72
SANDSTONE RS 8150 .0 .6 0* 2.2 2.3 96
WHISKEY PARK 8950 .4 1.8 22* 2.5 2.9 86
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Basin wide percent of average 29* 72
UPPER GREEN RIVER
BIG SANDY OPENING 9100 2.7 1.3 208* 2.3 1.8 128
BLIND BULL SUM 8650 3.6 1.8 200* 3.1 2.2 141
EAST RIM DIVIDE 7930 .1 .7 14* 1.4 1.4 100
ELKHART PARK G.S. 9400 1.8 .9 200* 1.8 2.0 90
GROS VENTRE SUMMIT 8775 1.8 1.4 129* 1.5 1.8 83
KENDALL R.S. 7740 .4 .7 57* 2.3 1.6 144
LOOMIS PARK 8240 2.1 1.0 210* 2.6 1.8 144
NEW FORK LAKE 8340 .5 .6 83* 1.4 1.6 87
SNIDER BASIN 8250 1.1 .8 138* 2.5 1.6 156
SPRING CREEK DIVIDE 9000 3.3 1.6 206* 3.7 2.5 148
TRIPLE PEAK 8500 -M 1.3 * -M 2.2 *
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Basin wide percent of average 161* 123
LOWER GREEN RIVER
HAMS FORK 7840 .2 .5 40* 1.1 1.4 79
HEWINTA 9500 .0 .9 0* 2.0 2.4 83
HICKERSON PARK 9150 .1 .5 20* .7 1.7 41
HOLE-IN-ROCK 9150 .0 .5 0* 1.1 1.7 65
INDIAN CREEK 9425 2.4 1.6 150* 2.2 2.6 85
KELLEY R.S. 8180 .3 1.0 30* 1.7 2.1 81
STEEL CREEK PARK 10100 .9 -M * 1.5 2.3 65
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Basin wide percent of average 60* 73
UPPER BEAR RIVER
BUG LAKE 7950 .4 1.3 31* 1.5 2.4 62
HAYDEN FORK 9400 .3 .9 33* 2.5 2.4 104
KELLEY R.S. 8180 .3 1.0 30* 1.7 2.1 81
LILY LAKE 9050 .1 1.0 10* 1.7 2.4 71
MONTE CRISTO 8960 .5 -M * 2.3 2.8 82
SALT RIVER SUMMIT 7600 .0 .4 0* 1.7 1.9 89
TRIAL LAKE 9960 .7 -M * 2.7 2.8 96
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Basin wide percent of average 24* 84
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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.