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: MARCH 28 , 2006
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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 20.9 17.9 117 24.7 21.3 116
COTTONWOOD CREEK 7600 28.6 23.5 122 30.5 27.2 112
GRANITE CREEK 6770 20.8 18.4 113 22.7 19.8 115
GRASSY LAKE 7265 37.7 35.3 107 -M 35.7 *
GROS VENTRE SUMMIT 8750 11.9 14.0 85 12.2 12.7 96
LEWIS LAKE DIVIDE 7850 40.6 35.1 116 38.5 36.5 105
PHILLIPS BENCH 8200 32.6 28.6 114 32.7 28.8 114
SALT RIVER SUMMIT 7600 16.0 14.3 112 18.8 18.6 101
SNAKE RIVER STATION 6920 21.5 19.0 113 25.7 22.1 116
SPRING CREEK DIVIDE 9000 30.1 26.3 114 -M 26.2 *
THUMB DIVIDE 7980 18.9 18.8 101 18.5 18.7 99
TOGWOTEE PASS 9580 24.1 24.6 98 25.1 24.4 103
TWO OCEAN PLATEAU 9240 34.4 27.7 124 28.0 27.4 102
WILLOW CREEK 8450 34.7 30.0 116 38.8 31.9 122
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Basin wide percent of average 112 109
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 20.9 23.2 90 18.5 19.9 93
BLACK BEAR 8170 47.3 39.0 121 -M 39.9 *
CANYON 8090 14.5 13.6 107 16.8 15.3 110
FISHER CREEK 9100 38.3 34.7 110 36.3 36.0 101
MADISON PLATEAU 7750 26.4 25.0 106 31.3 26.5 118
NORTHEAST ENTRANCE 7350 10.1 11.1 91 12.0 12.5 96
PARKER PEAK 9400 18.0 21.4 84 16.2 16.1 101
SYLVAN LAKE 8420 17.5 22.3 78 21.5 20.7 104
THUMB DIVIDE 7980 18.9 18.8 101 18.5 18.7 99
TWO OCEAN PLATEAU 9240 34.4 27.7 124 28.0 27.4 102
WHISKEY CREEK 6800 15.8 17.0 93 22.7 20.7 110
WHITE MILL 8700 25.0 24.1 104 22.7 26.7 85
WOLVERINE 7650 8.3 11.5 72 8.8 12.7 69
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Basin wide percent of average 102 100
WIND RIVER
BURROUGHS CREEK 8750 13.5 14.5 93 15.6 16.1 97
COLD SPRINGS 9630 5.7 8.8 65 8.4 10.4 81
DEER PARK 9700 16.6 16.7 99 20.0 21.5 93
HOBBS PARK 10100 10.9 14.6 75 11.4 12.5 91
LITTLE WARM 9370 8.9 11.7 76 11.4 13.2 86
SOUTH PASS 9040 15.9 16.4 97 16.4 18.1 91
ST. LAWRENCE ALT 8620 4.0 7.2 56 6.5 8.7 75
TOGWOTEE PASS 9580 24.1 24.6 98 25.1 24.4 103
TOWNSEND CREEK 8700 6.5 8.5 76 9.2 11.3 81
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Basin wide percent of average 86 91
BIGHORN BASIN
BALD MTN. 9380 14.7 19.4 76 12.0 17.1 70
BEAR TRAP MEADOW 8200 6.0 5.1 118 7.7 8.1 95
BLACKWATER 9780 21.5 24.2 89 19.4 20.2 96
BONE SPRINGS DIV 9350 13.7 15.9 86 13.8 14.3 97
EVENING STAR 9200 24.2 29.4 82 26.7 25.0 107
GRAVE SPRINGS 8550 9.4 9.1 103 11.2 9.5 118
KIRWIN 9550 9.5 11.2 85 10.3 11.0 94
MARQUETTE 8760 2.4 8.7 28 7.2 9.5 76
MIDDLE POWDER 7760 12.3 11.4 108 9.8 12.0 82
OWL CREEK 8975 3.2 5.4 59 5.8 5.7 102
POWDER RIVER PASS 9480 9.6 10.6 91 11.2 12.1 93
SHELL CREEK 9580 13.4 14.5 92 12.5 13.1 95
SYLVAN LAKE 8420 17.5 22.3 78 21.5 20.7 104
SYLVAN ROAD 7120 10.3 12.7 81 16.0 17.5 91
TIMBER CREEK 7950 2.4 5.6 43 4.9 7.1 69
YOUNTS PEAK 8350 13.8 16.9 82 16.8 16.0 105
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Basin wide percent of average 83 94
SHOSHONE RIVER
BLACKWATER 9780 21.5 24.2 89 19.4 20.2 96
EVENING STAR 9200 24.2 29.4 82 26.7 25.0 107
KIRWIN 9550 9.5 11.2 85 10.3 11.0 94
MARQUETTE 8760 2.4 8.7 28 7.2 9.5 76
SYLVAN LAKE 8420 17.5 22.3 78 21.5 20.7 104
SYLVAN ROAD 7120 10.3 12.7 81 16.0 17.5 91
YOUNTS PEAK 8350 13.8 16.9 82 16.8 16.0 105
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Basin wide percent of average 79 98
POWDER-TONGUE
BEAR TRAP MEADOW 8200 6.0 5.1 118 7.7 8.1 95
BIG GOOSE 7990 6.5 10.2 64 8.7 8.3 105
BONE SPRINGS DIV 9350 13.7 15.9 86 13.8 14.3 97
BURGESS JUNCTION 7880 9.4 11.3 83 10.4 11.9 87
CLOUD PEAK RESERVOIR 9860 12.8 13.0 98 11.8 12.5 94
DOME LAKE 8880 10.2 12.1 84 10.8 12.8 84
GRAVE SPRINGS 8550 9.4 9.1 103 11.2 9.5 118
HANSEN SAWMILL 8360 5.1 6.3 81 7.1 8.0 89
MIDDLE POWDER 7760 12.3 11.4 108 9.8 12.0 82
POWDER RIVER PASS 9480 9.6 10.6 91 11.2 12.1 93
SUCKER CREEK 8880 10.2 11.4 89 13.1 13.2 99
TIE CREEK 6870 5.3 6.0 88 9.5 9.6 99
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Basin wide percent of average 90 95
BELLE FOURCHE
BLIND PARK 6890 8.1 8.6 94 10.4 10.9 95
COLE CANYON 5910 5.7 6.1 93 9.1 -M *
NORTH RAPID CREEK 6130 7.1 8.1 88 8.7 8.5 102
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Basin wide percent of average 92 98
UPPER N. PLATTE RIVER
COLUMBINE 9160 30.9 24.7 125 32.5 24.7 132
DIVIDE PEAK 8860 19.4 19.5 99 21.5 20.3 106
ELK RIVER 8700 20.9 19.2 109 20.6 19.2 107
JOE WRIGHT 10120 21.5 20.9 103 25.2 24.3 104
NORTH FRENCH CREEK 10130 33.5 28.6 117 31.7 24.2 131
OLD BATTLE 9920 36.6 31.6 116 40.4 34.0 119
SAGE CREEK BASIN 7850 13.8 11.3 122 14.2 11.8 120
SOUTH BRUSH CREEK 8440 12.9 12.8 101 16.5 16.0 103
TOWER 10500 49.9 44.7 112 46.6 37.7 124
WEBBER SPRINGS 9250 28.1 25.9 108 33.6 26.2 128
WILLOW CREEK PASS 9540 11.9 11.7 102 13.2 12.6 105
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Basin wide percent of average 111 118
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 25.2 23.2 109 21.9 21.5 102
CASPER MTN. 7850 16.3 14.1 116 16.4 14.0 117
DEADMAN HILL 10220 16.3 15.9 103 17.8 16.5 108
DEER PARK 9700 16.6 16.7 99 20.0 21.5 93
LAPRELE CREEK 8375 10.3 10.8 95 11.4 12.3 93
RENO HILL 8500 15.3 13.8 111 16.7 14.5 115
ROACH 9700 16.5 16.8 98 19.3 18.2 106
SAND LAKE 10050 31.8 31.8 100 30.5 23.6 129
SOUTH PASS 9040 15.9 16.4 97 16.4 18.1 91
WINDY PEAK 7900 7.7 7.9 97 10.0 10.3 97
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Basin wide percent of average 103 106
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 14.1 11.0 128 16.0 15.4 104
DIVIDE PEAK 8860 19.4 19.5 99 21.5 20.3 106
OLD BATTLE 9920 36.6 31.6 116 40.4 34.0 119
SANDSTONE RS 8150 16.1 14.7 110 20.9 18.4 114
WHISKEY PARK 8950 40.0 29.7 135 33.3 28.1 119
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Basin wide percent of average 118 114
UPPER GREEN RIVER
BIG SANDY OPENING 9080 14.7 14.4 102 14.8 13.2 112
BLIND BULL SUM 8900 27.9 27.7 101 21.0 22.1 95
EAST RIM DIVIDE 7930 10.6 13.0 82 10.9 11.9 92
ELKHART PARK G.S. 9400 13.4 13.3 101 14.1 13.1 108
GROS VENTRE SUMMIT 8750 11.9 14.0 85 12.2 12.7 96
KENDALL R.S. 7740 14.6 14.4 101 14.6 14.4 101
LOOMIS PARK 8240 18.7 17.2 109 18.6 17.2 108
NEW FORK LAKE 8340 10.5 11.1 95 10.0 11.2 89
SNIDER BASIN 8060 18.2 14.4 126 16.7 16.0 104
SPRING CREEK DIVIDE 9000 30.1 26.3 114 -M 26.2 *
TRIPLE PEAK 8500 30.3 24.7 123 30.2 24.5 123
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Basin wide percent of average 105 104
LOWER GREEN RIVER
HAMS FORK 7840 15.6 12.0 130 13.7 12.1 113
HEWINTA 9500 12.7 11.7 109 14.7 14.3 103
HICKERSON PARK 9100 5.4 7.4 73 7.8 7.8 100
HOLE-IN-ROCK 9150 7.5 7.0 107 8.3 7.3 114
INDIAN CREEK 9425 30.6 27.5 111 -M 25.1 *
KELLEY R.S. 8180 20.0 16.7 120 21.6 20.2 107
STEEL CREEK PARK 10100 15.5 15.5 100 16.9 15.9 106
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Basin wide percent of average 110 107
UPPER BEAR RIVER
BUG LAKE 7950 25.1 20.7 121 22.4 19.1 117
HAYDEN FORK 9100 21.2 16.2 131 24.4 20.7 118
KELLEY R.S. 8180 20.0 16.7 120 21.6 20.2 107
LILY LAKE 9050 15.2 13.1 116 16.2 17.2 94
MONTE CRISTO 8960 34.3 29.5 116 32.0 25.1 127
SALT RIVER SUMMIT 7600 16.0 14.3 112 18.8 18.6 101
TRIAL LAKE 9960 29.3 24.8 118 27.3 24.6 111
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Basin wide percent of average 119 112
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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.