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 MONDAY: NOVEMBER 29 , 2004
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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 3.0 3.8 79 4.6 5.8 79
COTTONWOOD CREEK 7600 3.5 4.4 80 6.0 7.7 78
GRANITE CREEK 6770 2.0 3.2 62 4.8 5.2 92
GRASSY LAKE 7265 6.5 7.2 90 7.4 9.2 80
GROS VENTRE SUMMIT 8750 3.1 3.7 84 3.4 4.1 83
LEWIS LAKE DIVIDE 7850 5.9 7.2 82 6.6 9.5 69
PHILLIPS BENCH 8200 4.8 6.0 80 6.0 7.1 85
SALT RIVER SUMMIT 7600 2.1 2.4 88 4.7 4.8 98
SNAKE RIVER STATION 6920 2.0 3.7 54 4.6 6.1 75
SPRING CREEK DIVIDE 9000 5.7 6.4 89 6.6 7.0 94
THUMB DIVIDE 7980 2.9 3.8 76 3.7 5.2 71
TOGWOTEE PASS 9580 4.3 6.7 64 4.5 7.0 64
TWO OCEAN PLATEAU 9240 -M 7.9 * 5.8 7.9 73
WILLOW CREEK 8450 5.6 7.3 77 8.0 9.0 89
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Basin wide percent of average 78 80
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 4.2 6.7 63 4.0 5.7 70
BLACK BEAR 8170 9.1 9.1 100 9.6 10.0 96
CANYON 8090 2.1 3.0 70 3.2 4.6 70
FISHER CREEK 9100 6.0 8.6 70 6.5 9.4 69
MADISON PLATEAU 7750 4.6 5.8 79 6.1 6.9 88
NORTHEAST ENTRANCE 7350 1.0 2.3 43 2.4 3.8 63
PARKER PEAK 9400 4.8 6.4 75 3.8 5.3 72
SYLVAN LAKE 8420 4.1 6.1 67 5.6 6.8 82
THUMB DIVIDE 7980 2.9 3.8 76 3.7 5.2 71
TWO OCEAN PLATEAU 9240 -M 7.9 * 5.8 7.9 73
WHISKEY CREEK 6800 2.9 3.6 81 5.1 5.7 89
WHITE MILL 8700 4.5 6.3 71 4.2 7.4 57
WOLVERINE 7650 1.5 2.8 54 2.5 4.3 58
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Basin wide percent of average 74 75
WIND RIVER
BURROUGHS CREEK 8750 1.8 3.6 50 2.3 4.7 49
COLD SPRINGS 9630 2.9 3.0 97 3.5 4.1 85
DEER PARK 9700 8.0 4.4 182 9.1 6.8 134
HOBBS PARK 10100 5.4 5.1 106 5.1 4.4 116
LITTLE WARM 9370 2.1 3.2 66 2.7 4.4 61
SOUTH PASS 9040 5.8 4.7 123 7.2 5.7 126
ST. LAWRENCE ALT 8620 2.7 2.6 104 3.7 3.4 109
TOGWOTEE PASS 9580 4.3 6.7 64 4.5 7.0 64
TOWNSEND CREEK 8700 3.0 2.9 103 6.2 4.3 144
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Basin wide percent of average 99 99
BIGHORN BASIN
BALD MTN. 9380 5.7 5.7 100 5.3 5.1 104
BEAR TRAP MEADOW 8200 .8 1.5 53 3.2 3.3 97
BLACKWATER 9780 4.6 7.5 61 4.4 6.9 64
BONE SPRINGS DIV 9350 5.6 5.2 108 4.9 4.7 104
EVENING STAR 9200 4.7 8.1 58 6.6 7.8 85
GRAVE SPRINGS 8550 1.5 2.6 58 3.7 3.5 106
KIRWIN 9550 1.5 4.1 37 1.7 4.0 42
MARQUETTE 8760 2.2 3.7 59 2.9 4.0 72
MIDDLE POWDER 7760 2.1 3.4 62 3.5 4.8 73
OWL CREEK 8975 1.1 1.8 61 1.4 2.1 67
POWDER RIVER PASS 9480 3.9 3.2 122 4.6 4.0 115
SHELL CREEK 9580 5.0 4.9 102 4.7 4.3 109
SYLVAN LAKE 8420 4.1 6.1 67 5.6 6.8 82
SYLVAN ROAD 7120 2.1 3.3 64 4.0 6.3 63
TIMBER CREEK 7950 .4 2.2 18 1.4 2.9 48
YOUNTS PEAK 8350 2.3 4.5 51 3.1 5.0 62
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Basin wide percent of average 70 81
SHOSHONE RIVER
BLACKWATER 9780 4.6 7.5 61 4.4 6.9 64
EVENING STAR 9200 4.7 8.1 58 6.6 7.8 85
KIRWIN 9550 1.5 4.1 37 1.7 4.0 42
MARQUETTE 8760 2.2 3.7 59 2.9 4.0 72
SYLVAN LAKE 8420 4.1 6.1 67 5.6 6.8 82
SYLVAN ROAD 7120 2.1 3.3 64 4.0 6.3 63
YOUNTS PEAK 8350 2.3 4.5 51 3.1 5.0 62
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Basin wide percent of average 58 69
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .8 1.5 53 3.2 3.3 97
BIG GOOSE 7990 2.1 2.2 95 3.4 2.9 117
BONE SPRINGS DIV 9350 5.6 5.2 108 4.9 4.7 104
BURGESS JUNCTION 7880 2.4 3.4 71 3.2 4.1 78
CLOUD PEAK RESERVOIR 9860 4.4 3.7 119 3.5 4.8 73
DOME LAKE 8880 3.6 4.0 90 4.9 4.7 104
GRAVE SPRINGS 8550 1.5 2.6 58 3.7 3.5 106
HANSEN SAWMILL 8360 1.1 1.9 58 2.1 3.1 68
MIDDLE POWDER 7760 2.1 3.4 62 3.5 4.8 73
POWDER RIVER PASS 9480 3.9 3.2 122 4.6 4.0 115
SUCKER CREEK 8880 3.7 3.1 119 4.8 4.4 109
TIE CREEK 6870 .1 1.2 8 3.3 3.6 92
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Basin wide percent of average 88 94
BELLE FOURCHE
BLIND PARK 6890 1.4 1.9 74 3.4 4.4 77
COLE CANYON 5910 .0 1.8 0 2.9 -M *
NORTH RAPID CREEK 6130 1.1 1.6 69 2.3 3.7 62
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Basin wide percent of average 47 70
UPPER N. PLATTE RIVER
COLUMBINE 9160 4.1 4.7 87 6.2 6.1 102
DIVIDE PEAK 8860 6.9 4.9 141 9.4 6.0 157
ELK RIVER 8700 3.3 2.9 114 6.5 5.0 130
JOE WRIGHT 10120 7.5 6.1 123 7.4 7.4 100
NORTH FRENCH CREEK 10130 7.9 7.6 104 7.9 7.2 110
OLD BATTLE 9920 10.6 8.6 123 12.0 8.9 135
SAGE CREEK BASIN 7850 4.3 2.9 148 7.2 3.5 206
SOUTH BRUSH CREEK 8440 2.5 2.8 89 4.0 5.0 80
TOWER 10500 12.6 12.0 105 11.5 10.2 113
WEBBER SPRINGS 9250 6.4 6.3 102 8.2 7.5 109
WILLOW CREEK PASS 9540 4.7 3.5 134 4.9 4.2 117
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Basin wide percent of average 114 120
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 4.1 5.7 72 5.1 6.0 85
CASPER MTN. 7850 3.6 4.4 82 4.7 5.0 94
DEADMAN HILL 10220 5.5 4.8 115 4.5 5.1 88
DEER PARK 9700 8.0 4.4 182 9.1 6.8 134
LAPRELE CREEK 8375 1.7 3.1 55 3.6 4.1 88
RENO HILL 8500 2.6 4.1 63 3.4 4.9 69
ROACH 9700 3.2 4.1 78 5.1 5.0 102
SAND LAKE 10050 7.5 8.8 85 6.3 6.9 91
SOUTH PASS 9040 5.8 4.7 123 7.2 5.7 126
WINDY PEAK 7900 -M 2.2 * -M 3.6 *
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Basin wide percent of average 95 99
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.9 1.8 106 5.5 4.2 131
DIVIDE PEAK 8860 6.9 4.9 141 9.4 6.0 157
OLD BATTLE 9920 10.6 8.6 123 12.0 8.9 135
SANDSTONE RS 8150 2.1 2.3 91 6.8 5.3 128
WHISKEY PARK 8950 6.6 5.8 114 8.8 7.5 117
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Basin wide percent of average 120 133
UPPER GREEN RIVER
BIG SANDY OPENING 9080 5.3 3.8 139 5.6 4.1 137
BLIND BULL SUM 8900 -M 6.7 * 4.7 6.1 77
EAST RIM DIVIDE 7930 1.2 3.0 40 2.7 3.4 79
ELKHART PARK G.S. 9400 3.7 3.3 112 4.7 4.2 112
GROS VENTRE SUMMIT 8750 3.1 3.7 84 3.4 4.1 83
KENDALL R.S. 7740 2.5 3.0 83 4.0 3.9 103
LOOMIS PARK 8240 2.7 4.1 66 3.9 4.7 83
NEW FORK LAKE 8340 2.4 2.6 92 2.7 3.7 73
SNIDER BASIN 8060 3.0 3.4 88 4.3 4.3 100
SPRING CREEK DIVIDE 9000 5.7 6.4 89 6.6 7.0 94
TRIPLE PEAK 8500 3.8 5.9 64 -M 6.2 *
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Basin wide percent of average 85 94
LOWER GREEN RIVER
HAMS FORK 7840 2.3 2.3 100 4.8 3.4 141
HEWINTA 9500 1.6 2.1 76 4.8 4.7 102
HICKERSON PARK 9100 3.6 1.4 257 5.5 3.1 177
HOLE-IN-ROCK 9150 1.9 1.4 136 5.0 2.9 172
INDIAN CREEK 9425 7.2 6.3 114 7.3 6.7 109
KELLEY R.S. 8180 4.6 4.0 115 6.5 5.5 118
STEEL CREEK PARK 10100 5.8 3.8 153 6.2 5.0 124
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Basin wide percent of average 127 128
UPPER BEAR RIVER
BUG LAKE 7950 3.5 3.9 90 6.7 5.5 122
HAYDEN FORK 9100 5.0 2.9 172 8.7 5.9 147
KELLEY R.S. 8180 4.6 4.0 115 6.5 5.5 118
LILY LAKE 9050 3.8 2.8 136 7.2 5.5 131
MONTE CRISTO 8960 7.8 4.9 159 9.1 7.0 130
SALT RIVER SUMMIT 7600 2.1 2.4 88 4.7 4.8 98
TRIAL LAKE 9960 8.6 5.3 162 11.4 6.4 178
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Basin wide percent of average 135 134
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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.