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 TUESDAY: NOVEMBER 24 , 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 3.2 3.1 103 4.5 5.5 82
COTTONWOOD CREEK 7600 2.9 3.4 85 6.0 5.8 103
GRANITE CREEK 6770 1.8 2.8 64 3.2 5.8 55
GRASSY LAKE 7265 5.8 5.5 105 7.5 8.8 85
GROS VENTRE SUMMIT 8775 3.3 3.1 106 3.9 4.0 98
LEWIS LAKE DIVIDE 7860 5.5 5.5 100 7.9 8.9 89
PHILLIPS BENCH 8200 4.7 4.4 107 5.3 6.9 77
SALT RIVER SUMMIT 7600 1.3 1.7 76 3.6 4.2 86
SNAKE RIVER STATION 6920 -M 3.1 * -M 6.1 *
SPRING CREEK DIVIDE 9000 3.5 4.9 71 4.7 6.2 76
THUMB DIVIDE 7980 4.9 2.9 169 5.3 5.0 106
TOGWOTEE PASS 9580 5.9 5.1 116 6.2 6.6 94
TWO OCEAN PLATEAU 9360 8.0 6.8 118 7.4 7.5 99
WILLOW CREEK 8450 4.3 4.9 88 8.9 7.6 117
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Basin wide percent of average 102 90
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 5.1 6.0 85 4.5 4.4 102
BLACK BEAR 7950 8.9 7.0 127 9.3 8.4 111
CANYON 7940 2.9 2.3 126 3.5 3.7 95
FISHER CREEK 9100 7.3 7.2 101 7.2 7.8 92
MADISON PLATEAU 7750 -M 4.3 * 6.5 5.9 110
NORTHEAST ENTRANCE 7350 1.6 1.5 107 2.9 3.2 91
PARKER PEAK 9400 4.9 6.3 78 -M 4.3 *
SYLVAN LAKE 8420 6.2 5.7 109 7.8 5.6 139
THUMB DIVIDE 7980 4.9 2.9 169 5.3 5.0 106
TWO OCEAN PLATEAU 9360 8.0 6.8 118 7.4 7.5 99
WHISKEY CREEK 6800 3.3 3.0 110 4.5 4.8 94
WHITE MILL 8700 4.5 5.1 88 4.8 6.4 75
WOLVERINE 7650 2.3 1.8 128 3.2 3.5 91
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Basin wide percent of average 108 101
WIND RIVER
BURROUGHS CREEK 8750 3.0 3.0 100 3.6 4.3 84
COLD SPRINGS 9630 3.2 2.3 139 4.6 3.5 131
DEER PARK 9700 4.6 -M * 6.4 -M *
HOBBS PARK 10100 5.6 4.4 127 6.2 3.8 163
LITTLE WARM 9620 3.3 2.7 122 4.1 3.9 105
SOUTH PASS 9040 4.0 4.7 85 5.8 4.6 126
ST. LAWRENCE ALT 8620 2.7 1.7 159 5.0 3.3 152
TOGWOTEE PASS 9580 5.9 5.1 116 6.2 6.6 94
TOWNSEND CREEK 8700 3.6 2.3 157 6.1 3.4 179
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Basin wide percent of average 119 125
BIGHORN BASIN
BALD MTN. 9375 4.9 5.2 94 5.2 4.4 118
BEAR TRAP MEADOW 7900 2.0 1.8 111 5.2 2.8 186
BLACKWATER 9780 8.1 5.1 159 7.0 4.9 143
BONE SPRINGS DIV 9350 3.9 4.5 87 4.5 3.9 115
EVENING STAR 9200 5.7 7.5 76 6.7 5.9 114
GRAVE SPRINGS 8550 2.0 -M * 5.2 3.2 162
KIRWIN 9550 4.0 2.9 138 4.4 3.2 138
MARQUETTE 8760 4.2 2.1 200 5.1 3.1 165
MIDDLE POWDER 7760 1.9 3.1 61 8.0 3.6 222
OWL CREEK 8975 2.7 1.0 270 3.6 1.8 200
POWDER RIVER PASS 9480 2.2 2.8 79 4.2 3.4 124
SHELL CREEK 9580 4.3 4.3 100 3.8 3.6 106
SYLVAN LAKE 8420 6.2 5.7 109 7.8 5.6 139
SYLVAN ROAD 8120 3.3 3.1 106 4.1 4.5 91
TIMBER CREEK 7950 2.7 1.0 270 4.1 2.2 186
YOUNTS PEAK 8350 4.6 4.7 98 4.2 4.3 98
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Basin wide percent of average 111 138
SHOSHONE RIVER
BLACKWATER 9780 8.1 5.1 159 7.0 4.9 143
EVENING STAR 9200 5.7 7.5 76 6.7 5.9 114
KIRWIN 9550 4.0 2.9 138 4.4 3.2 138
MARQUETTE 8760 4.2 2.1 200 5.1 3.1 165
SYLVAN LAKE 8420 6.2 5.7 109 7.8 5.6 139
SYLVAN ROAD 8120 3.3 3.1 106 4.1 4.5 91
YOUNTS PEAK 8350 4.6 4.7 98 4.2 4.3 98
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Basin wide percent of average 116 125
POWDER-TONGUE
BEAR TRAP MEADOW 7900 2.0 1.8 111 5.2 2.8 186
BIG GOOSE 7990 1.7 -M * 4.6 -M *
BONE SPRINGS DIV 9350 3.9 4.5 87 4.5 3.9 115
BURGESS JUNCTION 7880 1.9 3.2 59 4.2 3.4 124
CLOUD PEAK RESERVOIR 9860 3.4 2.9 117 5.4 3.8 142
DOME LAKE 8880 2.2 3.5 63 3.6 4.1 88
GRAVE SPRINGS 8550 2.0 -M * 5.2 3.2 162
HANSEN SAWMILL 8760 1.7 1.8 94 3.3 2.7 122
MIDDLE POWDER 7760 1.9 3.1 61 8.0 3.6 222
POWDER RIVER PASS 9480 2.2 2.8 79 4.2 3.4 124
SUCKER CREEK 8880 3.1 2.5 124 5.1 3.7 138
TIE CREEK 6870 .8 -M * 3.3 3.2 103
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Basin wide percent of average 85 138
BELLE FOURCHE
BLIND PARK 6890 1.1 3.0 37 7.4 2.9 255
NORTH RAPID CREEK 6130 1.1 -M * 7.8 -M *
WARREN PEAK 6520 1.4 3.0 47 7.6 2.4 317
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Basin wide percent of average 42 283
UPPER N. PLATTE RIVER
COLUMBINE 9400 3.2 4.2 76 6.2 5.3 117
DIVIDE PEAK 8800 4.0 4.9 82 9.8 5.9 166
ELK RIVER 8700 1.8 2.7 67 8.0 4.4 182
JOE WRIGHT 10120 4.2 5.9 71 9.0 6.8 132
NORTH FRENCH CREEK 10100 8.2 5.8 141 10.5 5.2 202
OLD BATTLE 10000 6.8 7.6 89 10.7 7.5 143
SOUTH BRUSH CREEK 8400 3.5 2.0 175 8.7 4.5 193
TOWER 10500 10.7 12.0 89 11.2 8.5 132
WEBBER SPRINGS 9200 3.7 5.9 63 7.7 7.2 107
WILLOW CREEK PASS 9540 3.7 2.7 137 5.2 3.4 153
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Basin wide percent of average 93 148
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 4.1 5.9 69 6.3 4.6 137
CASPER MTN. 7900 3.0 3.9 77 8.6 4.6 187
DEADMAN HILL 10220 5.1 3.8 134 6.2 4.5 138
DEER PARK 9700 4.6 -M * 6.4 -M *
LAPRELE CREEK 8320 .5 2.4 21 6.2 2.9 214
RENO HILL 8400 4.6 3.4 135 8.7 5.6 155
ROACH 9700 3.3 3.8 87 5.7 5.4 106
SAND LAKE 10080 9.3 7.7 121 10.7 5.2 206
SOUTH PASS 9040 4.0 4.7 85 5.8 4.6 126
WINDY PEAK 7840 .9 1.8 50 6.5 2.4 271
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Basin wide percent of average 93 163
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.3 2.0 65 6.3 3.9 162
DIVIDE PEAK 8800 4.0 4.9 82 9.8 5.9 166
OLD BATTLE 10000 6.8 7.6 89 10.7 7.5 143
SANDSTONE RS 8150 1.4 2.6 54 7.2 4.4 164
WHISKEY PARK 8950 4.3 5.9 73 9.6 5.2 185
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Basin wide percent of average 77 162
UPPER GREEN RIVER
BIG SANDY OPENING 9100 3.5 2.6 135 3.7 4.0 93
BLIND BULL SUM 8650 4.3 6.3 68 4.9 5.3 92
EAST RIM DIVIDE 7930 1.6 1.4 114* 2.6 3.7 70
ELKHART PARK G.S. 9400 3.1 2.6 119 3.8 4.0 95
GROS VENTRE SUMMIT 8775 3.3 3.1 106 3.9 4.0 98
KENDALL R.S. 7740 2.1 1.9 111 2.9 3.8 76
LOOMIS PARK 8240 2.1 2.6 81 3.4 4.6 74
NEW FORK LAKE 8340 1.9 1.6 119 2.7 3.5 77
SNIDER BASIN 8250 1.6 2.1 76 2.6 3.7 70
SPRING CREEK DIVIDE 9000 3.5 4.9 71 4.7 6.2 76
TRIPLE PEAK 8500 3.7 4.4 84 5.3 7.6 70
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Basin wide percent of average 92 80
LOWER GREEN RIVER
HAMS FORK 7840 1.0 1.3 77 2.7 3.3 82
HEWINTA 9500 .9 1.9 47 4.1 3.9 105
HICKERSON PARK 9150 1.4 1.4 100 4.1 3.3 124
HOLE-IN-ROCK 9150 1.0 1.1 91 4.6 3.3 139
INDIAN CREEK 9425 3.9 5.1 76 4.3 6.1 70
KELLEY R.S. 8180 1.9 2.6 73 3.5 4.6 76
STEEL CREEK PARK 10100 3.4 4.2 81 5.4 4.1 132
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Basin wide percent of average 77 100
UPPER BEAR RIVER
BUG LAKE 7950 1.3 3.9 33 3.7 5.8 64
HAYDEN FORK 9400 2.4 3.0 80 5.3 4.8 110
KELLEY R.S. 8180 1.9 2.6 73 3.5 4.6 76
LILY LAKE 9050 3.2 2.9 110 5.6 4.5 124
MONTE CRISTO 8960 3.4 4.8 71 6.0 6.9 87
SALT RIVER SUMMIT 7600 1.3 1.7 76 3.6 4.2 86
TRIAL LAKE 9960 3.3 5.0 66 4.8 6.2 77
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Basin wide percent of average 70 88
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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.