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 11 , 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 1.0 1.7 59* 2.2 3.5 63
COTTONWOOD CREEK 7600 1.3 1.9 68* 4.4 3.8 116
GRANITE CREEK 6770 .8 1.6 50* 1.7 3.8 45
GRASSY LAKE 7265 2.1 2.9 72* 3.8 5.7 67
GROS VENTRE SUMMIT 8775 2.1 2.0 105 3.1 2.6 119
LEWIS LAKE DIVIDE 7860 1.9 3.2 59* 3.1 5.8 53
PHILLIPS BENCH 8200 1.7 2.4 71* 2.2 4.5 49
SALT RIVER SUMMIT 7600 .8 .7 114* 2.6 2.8 93
SNAKE RIVER STATION 6920 1.1 1.7 65* 2.4 4.0 60
SPRING CREEK DIVIDE 9000 1.8 3.0 60 3.3 3.9 85
THUMB DIVIDE 7980 1.7 1.5 113* 2.0 3.3 61
TOGWOTEE PASS 9580 3.8 3.5 109 4.0 4.3 93
TWO OCEAN PLATEAU 9360 3.8 4.9 78 3.4 4.8 71
WILLOW CREEK 8450 1.9 2.8 68* 6.0 4.9 122
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Basin wide percent of average 76* 77
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 2.1 4.4 48 1.8 3.0 60
BLACK BEAR 7950 3.6 4.6 78 4.2 5.6 75
CANYON 7940 .8 1.4 57 1.3 2.6 50
FISHER CREEK 9100 2.5 4.5 56 2.6 5.1 51
MADISON PLATEAU 7750 -M 2.6 * 2.6 4.0 65
NORTHEAST ENTRANCE 7350 .5 .8 62* 1.6 2.2 73
PARKER PEAK 9400 2.6 5.0 52 1.3 3.1 42
SYLVAN LAKE 8420 3.4 3.9 87 4.9 3.9 126
THUMB DIVIDE 7980 1.7 1.5 113* 2.0 3.3 61
TWO OCEAN PLATEAU 9360 3.8 4.9 78 3.4 4.8 71
WHISKEY CREEK 6800 1.3 1.6 81* 2.1 3.3 64
WHITE MILL 8700 1.5 3.2 47 1.9 4.3 44
WOLVERINE 7650 .5 .9 56* 2.1 2.4 88
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Basin wide percent of average 66 67
WIND RIVER
BURROUGHS CREEK 8750 1.8 1.8 100 2.5 2.8 89
COLD SPRINGS 9630 2.4 1.5 160 3.8 2.6 146
DEER PARK 9700 4.8 -M * 5.9 -M *
HOBBS PARK 10100 4.9 3.2 153 6.0 2.8 214
LITTLE WARM 9620 1.6 1.8 89 2.6 2.7 96
SOUTH PASS 9040 3.7 3.5 106 5.6 3.2 175
ST. LAWRENCE ALT 8620 2.5 1.2 208 5.0 2.4 208
TOGWOTEE PASS 9580 3.8 3.5 109 4.0 4.3 93
TOWNSEND CREEK 8700 3.2 1.6 200 5.6 2.6 215
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Basin wide percent of average 132 150
BIGHORN BASIN
BALD MTN. 9375 4.1 3.7 111 4.1 3.2 128
BEAR TRAP MEADOW 7900 1.8 1.2 150 4.6 2.1 219
BLACKWATER 9780 3.6 3.7 97 3.8 3.5 109
BONE SPRINGS DIV 9350 2.9 3.5 83 3.5 2.9 121
EVENING STAR 9200 1.3 5.6 23 2.4 4.2 57
GRAVE SPRINGS 8550 1.7 -M * 5.0 2.5 200
KIRWIN 9550 2.7 2.1 129 3.1 2.3 135
LOST CREEK 8080 .0 2.1 0 .0 2.7 0
MARQUETTE 8760 3.3 1.4 236 4.0 2.4 167
MIDDLE POWDER 7760 1.6 2.2 73 7.7 2.8 275
OWL CREEK 8975 2.2 .7 314 3.0 1.3 231
POWDER RIVER PASS 9480 1.5 1.9 79 3.5 2.5 140
SHELL CREEK 9580 3.5 3.3 106 3.4 2.6 131
SYLVAN LAKE 8420 3.4 3.9 87 4.9 3.9 126
SYLVAN ROAD 8120 1.1 2.2 50 1.8 3.2 56
TIMBER CREEK 7950 2.5 .6 417* 4.0 1.7 235
YOUNTS PEAK 8350 2.5 3.4 74 1.9 2.9 66
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Basin wide percent of average 92 130
SHOSHONE RIVER
BLACKWATER 9780 3.6 3.7 97 3.8 3.5 109
EVENING STAR 9200 1.3 5.6 23 2.4 4.2 57
KIRWIN 9550 2.7 2.1 129 3.1 2.3 135
MARQUETTE 8760 3.3 1.4 236 4.0 2.4 167
SYLVAN LAKE 8420 3.4 3.9 87 4.9 3.9 126
SYLVAN ROAD 8120 1.1 2.2 50 1.8 3.2 56
YOUNTS PEAK 8350 2.5 3.4 74 1.9 2.9 66
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Basin wide percent of average 80 98
POWDER-TONGUE
BEAR TRAP MEADOW 7900 1.8 1.2 150 4.6 2.1 219
BONE SPRINGS DIV 9350 2.9 3.5 83 3.5 2.9 121
BURGESS JUNCTION 7880 1.5 2.3 65 4.0 2.6 154
CLOUD PEAK RESERVOIR 9860 2.6 1.9 137 4.5 2.8 161
DOME LAKE 8880 1.8 2.6 69 3.5 3.1 113
GRAVE SPRINGS 8550 1.7 -M * 5.0 2.5 200
HANSEN SAWMILL 8760 1.1 1.2 92 3.2 2.1 152
LOST CREEK 8080 .0 2.1 0 .0 2.7 0
MIDDLE POWDER 7760 1.6 2.2 73 7.7 2.8 275
POWDER RIVER PASS 9480 1.5 1.9 79 3.5 2.5 140
SUCKER CREEK 8880 2.7 1.7 159 4.3 2.9 148
TIE CREEK 6870 1.1 -M * 3.1 2.5 124
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Basin wide percent of average 85 149
BELLE FOURCHE
BLIND PARK 6890 1.0 2.2 45 7.0 2.3 304
NORTH RAPID CREEK 6130 1.1 -M * 7.4 -M *
WARREN PEAK 6520 1.0 2.2 45 7.4 1.8 411
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Basin wide percent of average 45 351
UPPER N. PLATTE RIVER
COLUMBINE 9400 2.3 2.7 85 5.0 3.7 135
DIVIDE PEAK 8800 3.0 3.3 91 8.1 4.3 188
ELK RIVER 8700 1.5 1.3 115* 7.1 3.2 222
JOE WRIGHT 10120 4.3 4.5 96 8.3 4.9 169
NORTH FRENCH CREEK 10100 7.1 3.9 182 9.6 3.6 267
OLD BATTLE 10000 5.6 5.3 106 8.6 5.1 169
SOUTH BRUSH CREEK 8400 3.4 1.1 309* 8.2 3.3 248
TOWER 10500 8.8 8.7 101 9.6 6.0 160
WEBBER SPRINGS 9200 2.8 3.7 76 6.5 4.8 135
WILLOW CREEK PASS 9540 3.2 1.7 188 4.1 2.5 164
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Basin wide percent of average 116 181
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 2.7 3.7 73 5.2 3.4 153
CASPER MTN. 7900 2.6 2.4 108 8.3 3.4 244
DEADMAN HILL 10220 4.4 2.4 183 5.5 3.3 167
DEER PARK 9700 4.8 -M * 5.9 -M *
LAPRELE CREEK 8320 .3 1.5 20 5.7 2.1 271
RENO HILL 8400 4.4 2.5 176 8.2 3.9 210
ROACH 9700 2.7 2.5 108 5.0 3.9 128
SAND LAKE 10080 7.8 5.2 150 9.4 3.7 254
SOUTH PASS 9040 3.7 3.5 106 5.6 3.2 175
WINDY PEAK 7840 .2 1.0 20 5.8 1.7 341
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Basin wide percent of average 117 205
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.1 1.1 100* 5.6 2.7 207
DIVIDE PEAK 8800 3.0 3.3 91 8.1 4.3 188
OLD BATTLE 10000 5.6 5.3 106 8.6 5.1 169
SANDSTONE RS 8150 .9 1.6 56 6.3 2.9 217
WHISKEY PARK 8950 3.3 3.9 85 8.0 3.3 242
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Basin wide percent of average 91 200
UPPER GREEN RIVER
BIG SANDY OPENING 9100 2.7 1.6 169 3.2 2.6 123
BLIND BULL SUM 8650 1.6 4.1 39 3.0 3.4 88
EAST RIM DIVIDE 7930 .9 1.1 82* 2.0 2.5 80
ELKHART PARK G.S. 9400 2.4 1.6 150 3.2 2.6 123
GROS VENTRE SUMMIT 8775 2.1 2.0 105 3.1 2.6 119
KENDALL R.S. 7740 1.2 .9 133* 2.1 2.5 84
LOOMIS PARK 8240 1.0 1.4 71* 2.4 3.0 80
NEW FORK LAKE 8340 1.3 .6 217* 1.8 2.3 78
SNIDER BASIN 8250 .6 .9 67* 1.8 2.5 72
SPRING CREEK DIVIDE 9000 1.8 3.0 60 3.3 3.9 85
TRIPLE PEAK 8500 1.4 2.5 56* 2.8 4.9 57
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Basin wide percent of average 86* 88
LOWER GREEN RIVER
HAMS FORK 7840 .5 .5 100* 2.4 2.2 109
HEWINTA 9500 .2 .9 22* 3.7 3.1 119
HICKERSON PARK 9150 1.4 .9 156 3.7 2.6 142
HOLE-IN-ROCK 9150 .6 .6 100* 4.2 2.6 162
INDIAN CREEK 9425 2.4 3.2 75 2.9 4.0 72
KELLEY R.S. 8180 1.0 1.4 71* 2.5 3.0 83
STEEL CREEK PARK 10100 2.5 2.9 86 4.4 3.1 142
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Basin wide percent of average 83* 116
UPPER BEAR RIVER
BUG LAKE 7950 .5 2.0 25* 2.9 4.4 66
HAYDEN FORK 9400 1.7 1.8 94 4.0 3.5 114
KELLEY R.S. 8180 1.0 1.4 71* 2.5 3.0 83
LILY LAKE 9050 2.4 1.6 150 4.8 3.5 137
MONTE CRISTO 8960 1.9 2.5 76* 4.6 5.0 92
SALT RIVER SUMMIT 7600 .8 .7 114* 2.6 2.8 93
TRIAL LAKE 9960 2.5 3.3 76 4.2 4.3 98
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Basin wide percent of average 81* 97
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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.