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 SUNDAY: NOVEMBER 23 , 2008
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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 3.0 33 3.9 4.9 80
COTTONWOOD CREEK 7670 3.7 3.4 109 6.7 6.6 102
GRAND TARGHEE 9260 6.9 -M * 9.2 -M *
GRANITE CREEK 6770 .6 2.5 24 5.0 4.3 116
GRASSY LAKE 7265 3.8 5.7 67 7.9 7.8 101
GROS VENTRE SUMMIT 8750 2.8 3.1 90 4.0 3.6 111
GUNSIGHT PASS 9820 2.3 -M * 3.5 -M *
LEWIS LAKE DIVIDE 7850 4.6 5.7 81 8.4 7.8 108
PHILLIPS BENCH 8200 2.8 4.9 57 5.6 5.9 95
SALT RIVER SUMMIT 7760 1.1 1.9 58 3.2 4.1 78
SNAKE RIVER STATION 6920 .9 2.9 31 4.5 5.2 87
SPRING CREEK DIVIDE 9000 3.6 5.2 69 5.4 6.0 90
THUMB DIVIDE 7980 2.3 3.0 77 5.4 4.4 123
TOGWOTEE PASS 9580 6.0 5.8 103 7.1 6.0 118
TWO OCEAN PLATEAU 9240 7.5 6.8 110 5.8 6.7 87
WILLOW CREEK 8380 3.6 5.9 61 8.0 7.7 104
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Basin wide percent of average 74 100
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 4.2 5.7 74 3.9 4.7 83
BLACK BEAR 8170 6.3 7.5 84 9.4 8.5 111
CANYON 7870 2.0 2.4 83 3.2 4.0 80
FISHER CREEK 9100 6.2 7.0 89 7.0 7.9 89
MADISON PLATEAU 7750 2.8 4.5 62 5.3 5.8 91
NORTHEAST ENTRANCE 7350 .1 1.6 6 3.4 3.3 103
PARKER PEAK 9400 5.0 5.5 91 4.0 4.6 87
SYLVAN LAKE 8420 3.1 5.1 61 5.2 5.8 90
THUMB DIVIDE 7980 2.3 3.0 77 5.4 4.4 123
TWO OCEAN PLATEAU 9240 7.5 6.8 110 5.8 6.7 87
WHISKEY CREEK 6800 1.6 2.8 57 4.5 4.8 94
WHITE MILL 8700 4.6 5.1 90 5.5 6.2 89
WOLVERINE 7650 .2 2.1 10 2.5 3.7 68
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Basin wide percent of average 78 92
WIND RIVER
BURROUGHS CREEK 8750 3.5 2.9 121 4.2 4.0 105
COLD SPRINGS 9630 1.8 2.5 72 3.3 3.6 92
DEER PARK 9700 3.1 4.1 76 4.8 5.9 81
HOBBS PARK 10100 3.3 4.4 75 3.7 4.0 92
LITTLE WARM 9370 2.6 2.7 96 3.9 3.8 103
SOUTH PASS 9040 2.6 3.9 67 5.0 4.9 102
ST. LAWRENCE ALT 8620 .5 2.1 24 2.7 3.1 87
TOGWOTEE PASS 9580 6.0 5.8 103 7.1 6.0 118
TOWNSEND CREEK 8700 1.9 2.4 79 3.8 3.9 97
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Basin wide percent of average 82 98
BIGHORN BASIN
BALD MTN. 9380 6.3 5.1 124 5.8 4.5 129
BEAR TRAP MEADOW 8200 .9 1.4 64 2.5 3.0 83
BLACKWATER 9780 4.7 6.4 73 4.5 5.9 76
BONE SPRINGS DIV 9350 5.2 4.6 113 5.0 4.3 116
EVENING STAR 9200 4.7 6.6 71 6.6 6.7 99
GRAVE SPRINGS 8550 1.0 2.4 42 2.8 3.2 87
KIRWIN 9550 3.2 3.5 91 3.5 3.5 100
MARQUETTE 8760 1.3 3.1 42 2.5 3.7 68
MIDDLE POWDER 7760 -M 3.0 * -M 4.4 *
OWL CREEK 8975 2.5 1.6 156 2.6 2.0 130
POWDER RIVER PASS 9480 3.1 2.7 115 4.1 3.5 117
SHELL CREEK 9580 5.5 4.4 125 5.6 3.9 144
SYLVAN LAKE 8420 3.1 5.1 61 5.2 5.8 90
SYLVAN ROAD 7120 1.6 2.5 64 3.7 5.4 69
TIMBER CREEK 7950 1.3 2.1 62 3.8 2.7 141
YOUNTS PEAK 8350 3.4 3.7 92 4.0 4.3 93
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Basin wide percent of average 87 100
SHOSHONE RIVER
BLACKWATER 9780 4.7 6.4 73 4.5 5.9 76
EVENING STAR 9200 4.7 6.6 71 6.6 6.7 99
KIRWIN 9550 3.2 3.5 91 3.5 3.5 100
MARQUETTE 8760 1.3 3.1 42 2.5 3.7 68
SYLVAN LAKE 8420 3.1 5.1 61 5.2 5.8 90
SYLVAN ROAD 7120 1.6 2.5 64 3.7 5.4 69
YOUNTS PEAK 8350 3.4 3.7 92 4.0 4.3 93
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Basin wide percent of average 71 85
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .9 1.4 64 2.5 3.0 83
BIG GOOSE 7990 1.3 1.9 68 3.3 2.8 118
BONE SPRINGS DIV 9350 5.2 4.6 113 5.0 4.3 116
BURGESS JUNCTION 7880 2.7 3.0 90 4.0 3.7 108
CLOUD PEAK RESERVOIR 9860 4.4 3.2 138 5.3 4.4 120
DOME LAKE 8880 3.4 3.6 94 4.6 4.3 107
GRAVE SPRINGS 8550 1.0 2.4 42 2.8 3.2 87
HANSEN SAWMILL 8360 .8 1.6 50 3.4 2.9 117
MIDDLE POWDER 7760 -M 3.0 * -M 4.4 *
POWDER RIVER PASS 9480 3.1 2.7 115 4.1 3.5 117
SUCKER CREEK 8880 3.6 2.7 133 5.2 4.0 130
TIE CREEK 6870 .0 1.1 0 4.9 3.4 144
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Basin wide percent of average 94 114
BELLE FOURCHE
BLIND PARK 6890 3.2 1.7 188 6.1 4.1 149
COLE CANYON 5910 2.1 1.7 124 5.4 2.8 193
NORTH RAPID CREEK 6130 3.9 1.3 300 5.7 3.5 163
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Basin wide percent of average 196 165
UPPER N. PLATTE RIVER
COLUMBINE 9160 1.7 3.8 45 3.1 5.2 60
DIVIDE PEAK 8880 1.7 4.1 41 4.2 5.2 81
ELK RIVER 8700 1.1 2.3 48 3.4 4.4 77
JOE WRIGHT 10120 4.7 5.4 87 5.8 6.6 88
NORTH FRENCH CREEK 10130 5.0 6.5 77 5.4 6.4 84
OLD BATTLE 10000 4.3 7.4 58 6.1 7.6 80
SAGE CREEK BASIN 7850 .2 2.4 8 2.3 3.0 77
SOUTH BRUSH CREEK 8440 1.7 2.3 74 3.5 4.6 76
TOWER 10500 5.1 10.2 50 6.3 8.8 72
WEBBER SPRINGS 9250 2.3 5.3 43 4.6 6.4 72
WILLOW CREEK PASS 9540 2.2 3.0 73 2.6 3.8 68
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Basin wide percent of average 57 76
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 2.6 4.9 53 3.2 5.2 62
CASPER MTN. 7900 1.1 3.9 28 3.8 4.6 83
DEADMAN HILL 10220 2.8 4.4 64 2.9 4.6 63
DEER PARK 9700 3.1 4.1 76 4.8 5.9 81
LAPRELE CREEK 8375 .8 2.6 31 1.8 3.7 49
RENO HILL 8400 1.3 3.6 36 2.8 4.5 62
ROACH 9700 2.0 3.4 59 3.1 4.5 69
SAND LAKE 10050 4.9 7.6 64 4.6 6.0 77
SOUTH PASS 9040 2.6 3.9 67 5.0 4.9 102
WINDY PEAK 7900 1.1 1.8 61 1.6 3.2 50
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Basin wide percent of average 55 71
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 1.5 0 3.2 3.7 86
DIVIDE PEAK 8880 1.7 4.1 41 4.2 5.2 81
OLD BATTLE 10000 4.3 7.4 58 6.1 7.6 80
SANDSTONE RS 8150 1.4 1.8 78 3.0 4.7 64
WHISKEY PARK 8950 2.4 4.9 49 4.9 6.3 78
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Basin wide percent of average 50 78
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.9 3.2 59 2.6 3.6 72
BLIND BULL SUM 8650 4.1 5.4 76 4.9 5.1 96
EAST RIM DIVIDE 7930 .5 2.4 21 3.4 2.9 117
ELKHART PARK G.S. 9400 2.4 2.7 89 4.1 3.8 108
GROS VENTRE SUMMIT 8750 2.8 3.1 90 4.0 3.6 111
GUNSIGHT PASS 9820 2.3 -M * 3.5 -M *
KENDALL R.S. 7740 1.0 2.4 42 3.7 3.4 109
LOOMIS PARK 8240 1.7 3.3 52 4.5 4.1 110
NEW FORK LAKE 8340 1.9 2.1 90 3.4 3.3 103
SNIDER BASIN 8060 1.3 2.7 48 3.0 3.7 81
SPRING CREEK DIVIDE 9000 3.6 5.2 69 5.4 6.0 90
TRIPLE PEAK 8500 3.5 4.8 73 5.1 5.3 96
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Basin wide percent of average 66 98
LOWER GREEN RIVER
HAMS FORK 7840 .0 1.8 0 2.7 3.0 90
HEWINTA 9519 .0 1.8 0 2.6 4.3 60
HICKERSON PARK 9145 .0 1.2 0 1.9 2.9 66
HOLE-IN-ROCK 9150 .3 1.2 25 2.4 2.7 89
INDIAN CREEK 9425 3.1 5.1 61 4.5 5.7 79
KELLEY R.S. 8180 2.1 3.2 66 3.7 4.7 79
STEEL CREEK PARK 10200 .3 3.3 9 3.5 4.5 78
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Basin wide percent of average 33 77
UPPER BEAR RIVER
BUG LAKE 7950 .3 3.2 9 3.1 4.8 65
HAYDEN FORK 9212 1.4 2.4 58 4.0 5.1 78
KELLEY R.S. 8180 2.1 3.2 66 3.7 4.7 79
LILY LAKE 9156 1.4 2.3 61 3.5 4.8 73
MONTE CRISTO 8960 2.3 4.0 57 4.5 5.9 76
SALT RIVER SUMMIT 7760 1.1 1.9 58 3.2 4.1 78
TRIAL LAKE 9992 2.9 4.5 64 4.2 5.6 75
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Basin wide percent of average 53 75
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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 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.