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 26 , 1998
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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 3.3 3.3 100 4.8 5.8 83
COTTONWOOD CREEK 7600 3.1 3.6 86 6.3 6.1 103
GRANITE CREEK 6770 2.0 3.0 67 3.5 6.1 57
GRASSY LAKE 7265 6.0 5.9 102 7.7 9.3 83
GROS VENTRE SUMMIT 8775 3.6 3.2 112 4.3 4.2 102
LEWIS LAKE DIVIDE 7860 5.6 5.9 95 8.2 9.4 87
PHILLIPS BENCH 8200 5.2 4.8 108 5.8 7.3 79
SALT RIVER SUMMIT 7600 1.4 1.8 78 3.7 4.4 84
SNAKE RIVER STATION 6920 3.3 3.3 100 5.3 6.5 82
SPRING CREEK DIVIDE 9000 3.7 5.2 71 5.0 6.6 76
THUMB DIVIDE 7980 5.6 3.1 181 5.9 5.3 111
TOGWOTEE PASS 9580 6.2 5.4 115 6.6 7.0 94
TWO OCEAN PLATEAU 9360 8.8 7.1 124 8.1 7.9 103
WILLOW CREEK 8450 4.7 5.3 89 9.4 8.0 118
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Basin wide percent of average 103 90
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 5.6 6.3 89 5.0 4.6 109
BLACK BEAR 7950 10.2 7.4 138 10.6 8.8 120
CANYON 7940 3.6 2.4 150 4.3 3.9 110
FISHER CREEK 9100 9.0 7.7 117 8.4 8.2 102
MADISON PLATEAU 7750 -M 4.6 * 7.8 6.2 126
NORTHEAST ENTRANCE 7350 1.8 1.6 112 3.4 3.3 103
PARKER PEAK 9400 5.4 6.5 83 -M 4.5 *
SYLVAN LAKE 8420 6.8 6.0 113 8.5 5.9 144
THUMB DIVIDE 7980 5.6 3.1 181 5.9 5.3 111
TWO OCEAN PLATEAU 9360 8.8 7.1 124 8.1 7.9 103
WHISKEY CREEK 6800 4.5 3.2 141 5.9 5.0 118
WHITE MILL 8700 5.5 5.4 102 5.6 6.7 84
WOLVERINE 7650 2.9 2.0 145 3.4 3.7 92
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Basin wide percent of average 119 111
WIND RIVER
BURROUGHS CREEK 8750 3.1 3.2 97 3.7 4.5 82
COLD SPRINGS 9630 3.4 2.4 142 4.9 3.7 132
DEER PARK 9700 4.4 -M * 6.4 -M *
HOBBS PARK 10100 5.7 4.6 124 6.2 4.0 155
LITTLE WARM 9620 3.5 2.9 121 4.4 4.1 107
SOUTH PASS 9040 4.0 4.9 82 5.8 4.8 121
ST. LAWRENCE ALT 8620 2.8 1.8 156 5.1 3.5 146
TOGWOTEE PASS 9580 6.2 5.4 115 6.6 7.0 94
TOWNSEND CREEK 8700 3.6 2.4 150 6.1 3.6 169
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Basin wide percent of average 117 122
BIGHORN BASIN
BALD MTN. 9375 4.9 5.4 91 5.1 4.6 111
BEAR TRAP MEADOW 7900 2.0 1.9 105 5.1 2.9 176
BLACKWATER 9780 9.0 5.3 170 7.9 5.1 155
BONE SPRINGS DIV 9350 3.9 4.6 85 4.4 4.0 110
EVENING STAR 9200 7.0 7.8 90 7.6 6.2 123
GRAVE SPRINGS 8550 2.1 2.6 81 5.2 3.3 158
KIRWIN 9550 4.1 3.0 137 4.6 3.4 135
MARQUETTE 8760 4.4 2.2 200 5.2 3.2 162
MIDDLE POWDER 7760 1.8 3.3 55 7.9 3.8 208
OWL CREEK 8975 2.7 1.0 270 3.6 1.8 200
POWDER RIVER PASS 9480 2.2 2.9 76 4.2 3.5 120
SHELL CREEK 9580 4.3 4.4 98 3.8 3.7 103
SYLVAN LAKE 8420 6.8 6.0 113 8.5 5.9 144
SYLVAN ROAD 8120 3.7 3.2 116 4.8 4.7 102
TIMBER CREEK 7950 2.7 1.0 270 4.1 2.3 178
YOUNTS PEAK 8350 5.1 4.9 104 4.4 4.5 98
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Basin wide percent of average 112 137
SHOSHONE RIVER
BLACKWATER 9780 9.0 5.3 170 7.9 5.1 155
EVENING STAR 9200 7.0 7.8 90 7.6 6.2 123
KIRWIN 9550 4.1 3.0 137 4.6 3.4 135
MARQUETTE 8760 4.4 2.2 200 5.2 3.2 162
SYLVAN LAKE 8420 6.8 6.0 113 8.5 5.9 144
SYLVAN ROAD 8120 3.7 3.2 116 4.8 4.7 102
YOUNTS PEAK 8350 5.1 4.9 104 4.4 4.5 98
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Basin wide percent of average 124 130
POWDER-TONGUE
BEAR TRAP MEADOW 7900 2.0 1.9 105 5.1 2.9 176
BIG GOOSE 7990 1.7 -M * 4.7 -M *
BONE SPRINGS DIV 9350 3.9 4.6 85 4.4 4.0 110
BURGESS JUNCTION 7880 1.9 3.3 58 4.3 3.5 123
CLOUD PEAK RESERVOIR 9860 3.7 3.0 123 5.6 3.9 144
DOME LAKE 8880 2.2 3.7 59 3.7 4.3 86
GRAVE SPRINGS 8550 2.1 2.6 81 5.2 3.3 158
HANSEN SAWMILL 8760 1.8 1.9 95 3.3 2.8 118
MIDDLE POWDER 7760 1.8 3.3 55 7.9 3.8 208
POWDER RIVER PASS 9480 2.2 2.9 76 4.2 3.5 120
SUCKER CREEK 8880 3.1 2.6 119 5.1 3.9 131
TIE CREEK 6870 .8 -M * 3.3 3.3 100
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Basin wide percent of average 83 133
BELLE FOURCHE
BLIND PARK 6890 1.3 3.1 42 7.4 3.0 247
NORTH RAPID CREEK 6130 1.4 -M * 7.8 -M *
WARREN PEAK 6520 1.6 3.1 52 7.6 2.5 304
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Basin wide percent of average 47 273
UPPER N. PLATTE RIVER
COLUMBINE 9400 3.1 4.4 70 6.1 5.6 109
DIVIDE PEAK 8800 3.9 5.1 76 9.7 6.1 159
ELK RIVER 8700 1.6 3.0 53 7.9 4.6 172
JOE WRIGHT 10120 4.2 6.1 69 9.0 7.1 127
NORTH FRENCH CREEK 10100 8.2 6.0 137 10.5 5.5 191
OLD BATTLE 10000 6.8 7.9 86 10.6 7.9 134
SOUTH BRUSH CREEK 8400 3.4 2.2 155 8.6 4.7 183
TOWER 10500 10.8 12.5 86 11.2 8.9 126
WEBBER SPRINGS 9200 3.6 6.2 58 7.8 7.6 103
WILLOW CREEK PASS 9540 3.7 2.9 128 5.0 3.6 139
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Basin wide percent of average 88 140
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 4.1 6.2 66 6.3 4.8 131
CASPER MTN. 7900 2.6 4.1 63 8.6 4.8 179
DEADMAN HILL 10220 4.9 4.0 123 6.2 4.7 132
DEER PARK 9700 4.4 -M * 6.4 -M *
LAPRELE CREEK 8320 .4 2.5 16 6.1 3.0 203
RENO HILL 8400 4.5 3.6 125 8.7 5.9 147
ROACH 9700 3.3 4.0 82 5.7 5.6 102
SAND LAKE 10080 9.3 8.0 116 10.7 5.4 198
SOUTH PASS 9040 4.0 4.9 82 5.8 4.8 121
WINDY PEAK 7840 .7 1.9 37 6.3 2.5 252
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Basin wide percent of average 86 155
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.2 2.2 55 6.2 4.1 151
DIVIDE PEAK 8800 3.9 5.1 76 9.7 6.1 159
OLD BATTLE 10000 6.8 7.9 86 10.6 7.9 134
SANDSTONE RS 8150 1.3 2.7 48 7.2 4.6 157
WHISKEY PARK 8950 4.2 6.2 68 9.5 5.5 173
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Basin wide percent of average 72 153
UPPER GREEN RIVER
BIG SANDY OPENING 9100 3.5 2.7 130 3.7 4.2 88
BLIND BULL SUM 8650 4.5 6.6 68 5.0 5.6 89
EAST RIM DIVIDE 7930 1.8 1.4 129* 2.8 3.9 72
ELKHART PARK G.S. 9400 3.2 2.7 119 3.9 4.2 93
GROS VENTRE SUMMIT 8775 3.6 3.2 112 4.3 4.2 102
KENDALL R.S. 7740 2.3 2.1 110 3.1 4.0 78
LOOMIS PARK 8240 2.3 2.8 82 3.6 4.9 73
NEW FORK LAKE 8340 2.0 1.7 118 2.5 3.7 68
SNIDER BASIN 8250 1.8 2.3 78 2.8 3.9 72
SPRING CREEK DIVIDE 9000 3.7 5.2 71 5.0 6.6 76
TRIPLE PEAK 8500 4.0 4.7 85 5.7 8.0 71
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Basin wide percent of average 92 80
LOWER GREEN RIVER
HAMS FORK 7840 1.1 1.4 79 2.7 3.5 77
HEWINTA 9500 1.0 2.0 50 4.3 4.1 105
HICKERSON PARK 9150 1.3 1.5 87 4.0 3.4 118
HOLE-IN-ROCK 9150 .8 1.2 67 4.4 3.4 129
INDIAN CREEK 9425 4.2 5.4 78 4.4 6.5 68
KELLEY R.S. 8180 2.0 2.8 71 3.6 4.9 73
STEEL CREEK PARK 10100 3.4 4.4 77 5.4 4.2 129
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Basin wide percent of average 74 96
UPPER BEAR RIVER
BUG LAKE 7950 1.2 4.2 29 3.8 6.0 63
HAYDEN FORK 9400 2.5 3.2 78 5.2 5.0 104
KELLEY R.S. 8180 2.0 2.8 71 3.6 4.9 73
LILY LAKE 9050 3.4 3.1 110 5.8 4.6 126
MONTE CRISTO 8960 3.4 5.2 65 6.2 7.2 86
SALT RIVER SUMMIT 7600 1.4 1.8 78 3.7 4.4 84
TRIAL LAKE 9960 3.3 5.3 62 4.9 6.5 75
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Basin wide percent of average 67 86
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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.