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 WEDNESDAY: NOVEMBER 12 , 1997
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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 .6 1.8 33 2.8 3.7 76
COTTONWOOD CREEK 7600 1.3 2.0 65* 3.1 3.9 79
GRANITE CREEK 6770 .2 1.7 12* 2.3 4.0 58
GRASSY LAKE 7265 2.0 3.1 65* 3.9 5.9 66
GROS VENTRE SUMMIT 8775 -M 2.1 * 1.6 2.7 59
LEWIS LAKE DIVIDE 7860 2.3 3.4 68* 3.7 6.0 62
PHILLIPS BENCH 8200 1.3 2.5 52* 2.5 4.7 53
SALT RIVER SUMMIT 7600 .5 .8 62* 3.2 2.9 110
SNAKE RIVER STATION 6920 -M 1.8 * -M 4.1 *
SPRING CREEK DIVIDE 9000 1.5 3.2 47 2.4 4.1 59
THUMB DIVIDE 7980 -M 1.6 * -M 3.4 *
TOGWOTEE PASS 9580 3.2 3.6 89 4.7 4.5 104
TWO OCEAN PLATEAU 9360 5.0 5.0 100 4.9 5.0 98
WILLOW CREEK 8450 1.1 2.9 38* 4.3 5.1 84
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Basin wide percent of average 63* 75
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.8 4.5 84 3.2 3.1 103
BLACK BEAR 7950 4.2 4.7 89 4.3 5.8 74
CANYON 7940 1.4 1.5 93 3.3 2.7 122
FISHER CREEK 9100 5.6 4.6 122 5.1 5.3 96
MADISON PLATEAU 7750 -M 2.8 * 3.3 4.1 80
NORTHEAST ENTRANCE 7350 .2 .9 22* 3.7 2.3 161
PARKER PEAK 9400 3.8 5.1 75 3.6 3.2 112
SYLVAN LAKE 8420 3.0 4.0 75 5.0 4.0 125
THUMB DIVIDE 7980 -M 1.6 * -M 3.4 *
TWO OCEAN PLATEAU 9360 5.0 5.0 100 4.9 5.0 98
WHISKEY CREEK 6800 1.2 1.7 71* 2.6 3.4 76
WHITE MILL 8700 5.0 3.3 152 5.3 4.5 118
WOLVERINE 7650 .0 1.0 0* 2.8 2.5 112
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Basin wide percent of average 91 103
WIND RIVER
BURROUGHS CREEK 8750 1.9 1.8 106 2.7 2.9 93
COLD SPRINGS 9630 1.8 1.6 112 2.6 2.7 96
DEER PARK 9700 .0 -M * .0 -M *
HOBBS PARK 10100 2.8 3.4 82 3.3 2.9 114
LITTLE WARM 9620 -M 1.9 * 2.4 2.8 86
SOUTH PASS 9040 2.5 3.6 69 3.8 3.3 115
ST. LAWRENCE ALT 8620 2.2 1.2 183 3.0 2.5 120
TOGWOTEE PASS 9580 3.2 3.6 89 4.7 4.5 104
TOWNSEND CREEK 8700 1.9 1.6 119 3.0 2.6 115
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Basin wide percent of average 97 105
BIGHORN BASIN
BALD MTN. 9375 4.6 3.9 118 4.7 3.3 142
BEAR TRAP MEADOW 7900 .4 1.2 33 1.3 2.2 59
BLACKWATER 9780 4.0 3.8 105 3.6 3.6 100
BONE SPRINGS DIV 9350 3.8 3.6 106 4.5 3.0 150
EVENING STAR 9200 4.2 5.8 72 6.0 4.3 140
GRAVE SPRINGS 8550 1.3 -M * 2.2 2.5 88
KIRWIN 9550 2.3 2.2 105 2.8 2.4 117
MARQUETTE 8760 3.6 1.5 240 4.1 2.4 171
MIDDLE POWDER 7760 1.2 2.2 55 2.2 2.8 79
OWL CREEK 8975 1.4 .7 200 1.6 1.4 114
POWDER RIVER PASS 9480 1.3 2.0 65 2.2 2.6 85
SHELL CREEK 9580 3.3 3.4 97 2.9 2.7 107
SYLVAN LAKE 8420 3.0 4.0 75 5.0 4.0 125
SYLVAN ROAD 8120 .9 2.3 39 3.9 3.3 118
TIMBER CREEK 7950 2.5 .6 417* 3.5 1.7 206
YOUNTS PEAK 8350 3.6 3.5 103 2.7 3.0 90
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Basin wide percent of average 99 118
SHOSHONE RIVER
BLACKWATER 9780 4.0 3.8 105 3.6 3.6 100
EVENING STAR 9200 4.2 5.8 72 6.0 4.3 140
KIRWIN 9550 2.3 2.2 105 2.8 2.4 117
MARQUETTE 8760 3.6 1.5 240 4.1 2.4 171
SYLVAN LAKE 8420 3.0 4.0 75 5.0 4.0 125
SYLVAN ROAD 8120 .9 2.3 39 3.9 3.3 118
YOUNTS PEAK 8350 3.6 3.5 103 2.7 3.0 90
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Basin wide percent of average 94 122
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .4 1.2 33 1.3 2.2 59
BONE SPRINGS DIV 9350 3.8 3.6 106 4.5 3.0 150
BURGESS JUNCTION 7880 1.4 2.4 58 3.0 2.7 111
CLOUD PEAK RESERVOIR 9860 1.9 2.0 95 3.7 2.9 128
DOME LAKE 8880 2.3 2.7 85 4.1 3.2 128
GRAVE SPRINGS 8550 1.3 -M * 2.2 2.5 88
HANSEN SAWMILL 8760 1.3 1.3 100 2.5 2.1 119
MIDDLE POWDER 7760 1.2 2.2 55 2.2 2.8 79
POWDER RIVER PASS 9480 1.3 2.0 65 2.2 2.6 85
SUCKER CREEK 8880 2.3 1.8 128 3.9 2.9 134
TIE CREEK 6870 1.0 -M * 4.0 2.5 160
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Basin wide percent of average 83 114
BELLE FOURCHE
BLIND PARK 6890 1.7 2.2 77 3.4 2.3 148
NORTH RAPID CREEK 6130 1.7 -M * 2.3 -M *
WARREN PEAK 6520 .8 2.2 36 2.6 1.9 137
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Basin wide percent of average 57 143
UPPER N. PLATTE RIVER
COLUMBINE 9400 2.0 2.8 71 4.2 3.9 108
DIVIDE PEAK 8800 2.3 3.4 68 4.0 4.4 91
ELK RIVER 8700 .4 1.3 31* 3.5 3.3 106
JOE WRIGHT 10120 4.1 4.6 89 5.6 5.1 110
NORTH FRENCH CREEK 10100 3.4 4.1 83 4.5 3.7 122
OLD BATTLE 10000 4.1 5.5 75 6.0 5.3 113
SOUTH BRUSH CREEK 8400 .7 1.2 58* 2.1 3.4 62
TOWER 10500 6.7 9.0 74 6.7 6.2 108
WEBBER SPRINGS 9200 2.3 3.9 59 4.9 5.0 98
WILLOW CREEK PASS 9540 2.4 1.8 133 2.7 2.6 104
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Basin wide percent of average 76 103
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 2.1 3.9 54 3.8 3.5 109
CASPER MTN. 7900 2.6 2.5 104 3.1 3.5 89
DEADMAN HILL 10220 4.3 2.5 172 3.8 3.4 112
DEER PARK 9700 .0 -M * .0 -M *
LAPRELE CREEK 8320 1.4 1.6 88 2.4 2.2 109
RENO HILL 8400 2.2 2.6 85 2.3 4.0 58
ROACH 9700 2.5 2.7 93 4.0 4.0 100
SAND LAKE 10080 4.5 5.5 82 5.3 3.8 139
SOUTH PASS 9040 2.5 3.6 69 3.8 3.3 115
WINDY PEAK 7840 .9 1.1 82 2.3 1.8 128
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Basin wide percent of average 88 104
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 1.2 8 3.4 2.8 121
DIVIDE PEAK 8800 2.3 3.4 68 4.0 4.4 91
OLD BATTLE 10000 4.1 5.5 75 6.0 5.3 113
SANDSTONE RS 8150 .4 1.7 24 3.5 3.0 117
WHISKEY PARK 8950 1.9 4.0 48 4.6 3.5 131
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Basin wide percent of average 56 113
UPPER GREEN RIVER
BIG SANDY OPENING 9100 1.7 1.6 106 1.8 2.7 67
BLIND BULL SUM 8650 1.8 4.3 42 2.1 3.6 58
EAST RIM DIVIDE 7930 .8 1.2 67* 1.0 2.6 38
ELKHART PARK G.S. 9400 1.1 1.7 65 2.0 2.7 74
GROS VENTRE SUMMIT 8775 -M 2.1 * 1.6 2.7 59
KENDALL R.S. 7740 1.3 .9 144* 2.3 2.6 88
LOOMIS PARK 8240 1.1 1.5 73* 1.6 3.2 50
NEW FORK LAKE 8340 1.0 .7 143* 1.4 2.4 58
SNIDER BASIN 8250 .0 1.0 0* 1.2 2.6 46
SPRING CREEK DIVIDE 9000 1.5 3.2 47 2.4 4.1 59
TRIPLE PEAK 8500 2.3 2.7 85* 2.6 5.1 51
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Basin wide percent of average 67* 58
LOWER GREEN RIVER
HAMS FORK 7840 .1 .6 17* 1.2 2.3 52
HEWINTA 9500 1.4 1.0 140* 4.4 3.1 142
HICKERSON PARK 9150 3.2 1.0 320 4.3 2.7 159
HOLE-IN-ROCK 9150 1.3 .7 186 3.8 2.7 141
INDIAN CREEK 9425 2.0 3.4 59 1.6 4.1 39
KELLEY R.S. 8180 .8 1.4 57* 1.5 3.2 47
STEEL CREEK PARK 10100 2.6 2.9 90 5.3 3.2 166
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Basin wide percent of average 104 104
UPPER BEAR RIVER
BUG LAKE 7950 2.2 2.1 105* 3.4 4.5 76
HAYDEN FORK 9400 .4 1.8 22 4.0 3.6 111
KELLEY R.S. 8180 .8 1.4 57* 1.5 3.2 47
LILY LAKE 9050 1.6 1.7 94 3.6 3.5 103
MONTE CRISTO 8960 1.9 2.7 70* 3.5 5.1 69
SALT RIVER SUMMIT 7600 .5 .8 62* 3.2 2.9 110
TRIAL LAKE 9960 2.2 3.4 65 3.5 4.5 78
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Basin wide percent of average 69* 83
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-M = Missing data
* = Data may not provide a valid measure of conditions.
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.