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 THURSDAY: MARCH 30 , 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 20.8 18.0 116 24.9 21.5 116
COTTONWOOD CREEK 7600 29.2 23.9 122 31.1 27.5 113
GRANITE CREEK 6770 20.9 18.5 113 23.1 19.9 116
GRASSY LAKE 7265 37.9 35.7 106 41.3 36.1 114
GROS VENTRE SUMMIT 8750 12.3 14.2 87 12.7 12.9 98
LEWIS LAKE DIVIDE 7850 40.7 35.4 115 38.8 36.8 105
PHILLIPS BENCH 8200 33.6 28.9 116 33.6 29.1 115
SALT RIVER SUMMIT 7600 16.5 14.5 114 19.2 18.8 102
SNAKE RIVER STATION 6920 21.2 19.1 111 25.9 22.3 116
SPRING CREEK DIVIDE 9000 31.0 26.6 117 -M 26.5 *
THUMB DIVIDE 7980 19.0 19.0 100 18.7 18.9 99
TOGWOTEE PASS 9580 24.4 24.9 98 25.3 24.6 103
TWO OCEAN PLATEAU 9240 34.6 28.1 123 28.2 27.7 102
WILLOW CREEK 8450 35.4 30.3 117 39.6 32.2 123
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Basin wide percent of average 112 110
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 21.3 23.4 91 18.8 20.1 94
BLACK BEAR 8170 48.2 39.4 122 -M 40.4 *
CANYON 8090 14.6 13.8 106 17.1 15.4 111
FISHER CREEK 9100 38.9 35.0 111 36.6 36.4 101
MADISON PLATEAU 7750 26.9 25.2 107 31.5 26.8 118
NORTHEAST ENTRANCE 7350 10.2 11.2 91 12.3 12.7 97
PARKER PEAK 9400 18.5 21.7 85 16.7 16.2 103
SYLVAN LAKE 8420 17.9 22.5 80 21.8 20.9 104
THUMB DIVIDE 7980 19.0 19.0 100 18.7 18.9 99
TWO OCEAN PLATEAU 9240 34.6 28.1 123 28.2 27.7 102
WHISKEY CREEK 6800 16.0 17.2 93 22.9 21.0 109
WHITE MILL 8700 25.4 24.3 105 22.9 27.0 85
WOLVERINE 7650 8.5 11.6 73 8.9 12.8 70
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Basin wide percent of average 103 100
WIND RIVER
BURROUGHS CREEK 8750 13.8 14.6 95 15.8 16.2 98
COLD SPRINGS 9630 5.8 8.9 65 8.4 10.6 79
DEER PARK 9700 17.2 16.9 102 20.5 21.8 94
HOBBS PARK 10100 10.9 14.9 73 11.4 12.7 90
LITTLE WARM 9370 9.2 11.8 78 11.7 13.3 88
SOUTH PASS 9040 16.3 16.5 99 16.8 18.4 91
ST. LAWRENCE ALT 8620 4.0 7.3 55 6.5 8.8 74
TOGWOTEE PASS 9580 24.4 24.9 98 25.3 24.6 103
TOWNSEND CREEK 8700 6.6 8.7 76 9.3 11.5 81
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Basin wide percent of average 87 91
BIGHORN BASIN
BALD MTN. 9380 15.5 19.6 79 12.7 17.3 73
BEAR TRAP MEADOW 8200 5.9 5.2 113 7.6 8.2 93
BLACKWATER 9780 22.0 24.5 90 19.8 20.5 97
BONE SPRINGS DIV 9350 13.9 16.2 86 14.6 14.5 101
EVENING STAR 9200 24.4 29.8 82 26.9 25.3 106
GRAVE SPRINGS 8550 9.4 9.3 101 11.2 9.6 117
KIRWIN 9550 9.7 11.3 86 10.5 11.2 94
MARQUETTE 8760 2.5 8.8 28 7.2 9.7 74
MIDDLE POWDER 7760 12.3 11.6 106 9.7 12.2 80
OWL CREEK 8975 3.3 5.5 60 5.8 5.8 100
POWDER RIVER PASS 9480 9.8 10.8 91 11.5 12.2 94
SHELL CREEK 9580 13.8 14.7 94 12.7 13.2 96
SYLVAN LAKE 8420 17.9 22.5 80 21.8 20.9 104
SYLVAN ROAD 7120 10.5 12.8 82 16.2 17.7 92
TIMBER CREEK 7950 2.5 5.7 44 5.0 7.3 68
YOUNTS PEAK 8350 -M 17.1 * 17.1 16.1 106
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Basin wide percent of average 83 95
SHOSHONE RIVER
BLACKWATER 9780 22.0 24.5 90 19.8 20.5 97
EVENING STAR 9200 24.4 29.8 82 26.9 25.3 106
KIRWIN 9550 9.7 11.3 86 10.5 11.2 94
MARQUETTE 8760 2.5 8.8 28 7.2 9.7 74
SYLVAN LAKE 8420 17.9 22.5 80 21.8 20.9 104
SYLVAN ROAD 7120 10.5 12.8 82 16.2 17.7 92
YOUNTS PEAK 8350 -M 17.1 * 17.1 16.1 106
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Basin wide percent of average 79 98
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.9 5.2 113 7.6 8.2 93
BIG GOOSE 7990 6.7 10.5 64 8.8 8.4 105
BONE SPRINGS DIV 9350 13.9 16.2 86 14.6 14.5 101
BURGESS JUNCTION 7880 9.4 11.5 82 10.7 12.0 89
CLOUD PEAK RESERVOIR 9860 12.9 13.3 97 12.1 12.7 95
DOME LAKE 8880 10.2 12.4 82 11.0 13.0 85
GRAVE SPRINGS 8550 9.4 9.3 101 11.2 9.6 117
HANSEN SAWMILL 8360 5.1 6.4 80 7.2 8.1 89
MIDDLE POWDER 7760 12.3 11.6 106 9.7 12.2 80
POWDER RIVER PASS 9480 9.8 10.8 91 11.5 12.2 94
SUCKER CREEK 8880 10.3 11.6 89 13.3 13.4 99
TIE CREEK 6870 5.0 6.1 82 9.7 9.8 99
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Basin wide percent of average 89 95
BELLE FOURCHE
BLIND PARK 6890 7.7 8.7 89 10.5 11.0 95
COLE CANYON 5910 5.1 6.1 84 9.1 -M *
NORTH RAPID CREEK 6130 6.7 8.2 82 8.7 8.5 102
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Basin wide percent of average 85 98
UPPER N. PLATTE RIVER
COLUMBINE 9160 30.7 24.9 123 32.7 25.0 131
DIVIDE PEAK 8860 19.5 19.7 99 21.8 20.6 106
ELK RIVER 8700 20.8 19.4 107 20.9 19.5 107
JOE WRIGHT 10120 21.7 21.2 102 25.5 24.6 104
NORTH FRENCH CREEK 10130 33.7 29.0 116 31.9 24.5 130
OLD BATTLE 9920 37.1 32.0 116 40.8 34.4 119
SAGE CREEK BASIN 7850 13.4 11.4 118 14.4 12.0 120
SOUTH BRUSH CREEK 8440 12.7 13.0 98 16.7 16.2 103
TOWER 10500 50.6 45.3 112 46.7 38.2 122
WEBBER SPRINGS 9250 28.3 26.2 108 33.8 26.5 128
WILLOW CREEK PASS 9540 12.0 11.9 101 13.4 12.7 106
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Basin wide percent of average 110 117
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 25.4 23.6 108 22.0 21.8 101
CASPER MTN. 7850 16.4 14.4 114 16.4 14.2 115
DEADMAN HILL 10220 16.4 16.2 101 17.8 16.8 106
DEER PARK 9700 17.2 16.9 102 20.5 21.8 94
LAPRELE CREEK 8375 10.3 10.9 94 11.5 12.4 93
RENO HILL 8500 15.3 14.0 109 16.8 14.8 114
ROACH 9700 16.4 17.0 96 19.5 18.5 105
SAND LAKE 10050 32.0 32.2 99 30.8 23.9 129
SOUTH PASS 9040 16.3 16.5 99 16.8 18.4 91
WINDY PEAK 7900 7.9 8.0 99 10.2 10.5 97
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Basin wide percent of average 102 105
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 13.5 11.0 123 16.2 15.7 103
DIVIDE PEAK 8860 19.5 19.7 99 21.8 20.6 106
OLD BATTLE 9920 37.1 32.0 116 40.8 34.4 119
SANDSTONE RS 8150 16.0 14.7 109 21.2 18.6 114
WHISKEY PARK 8950 39.9 30.0 133 33.9 28.5 119
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Basin wide percent of average 117 114
UPPER GREEN RIVER
BIG SANDY OPENING 9080 15.4 14.5 106 15.4 13.4 115
BLIND BULL SUM 8900 28.4 28.0 101 21.5 22.3 96
EAST RIM DIVIDE 7930 11.1 13.2 84 11.5 12.1 95
ELKHART PARK G.S. 9400 14.2 13.4 106 15.0 13.2 114
GROS VENTRE SUMMIT 8750 12.3 14.2 87 12.7 12.9 98
KENDALL R.S. 7740 14.8 14.5 102 15.1 14.6 103
LOOMIS PARK 8240 19.5 17.3 113 19.6 17.4 113
NEW FORK LAKE 8340 10.9 11.2 97 10.4 11.3 92
SNIDER BASIN 8060 18.7 14.6 128 17.3 16.1 107
SPRING CREEK DIVIDE 9000 31.0 26.6 117 -M 26.5 *
TRIPLE PEAK 8500 31.1 25.0 124 31.1 24.8 125
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Basin wide percent of average 108 107
LOWER GREEN RIVER
HAMS FORK 7840 16.0 12.0 133 14.1 12.2 116
HEWINTA 9500 12.9 11.9 108 14.8 14.5 102
HICKERSON PARK 9100 5.9 7.6 78 8.1 7.9 103
HOLE-IN-ROCK 9150 7.7 7.1 108 8.5 7.4 115
INDIAN CREEK 9425 31.5 27.8 113 -M 25.4 *
KELLEY R.S. 8180 20.4 16.9 121 22.1 20.4 108
STEEL CREEK PARK 10100 16.0 15.7 102 17.2 16.1 107
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Basin wide percent of average 112 108
UPPER BEAR RIVER
BUG LAKE 7950 25.6 21.0 122 22.7 19.3 118
HAYDEN FORK 9100 21.8 16.4 133 25.0 20.9 120
KELLEY R.S. 8180 20.4 16.9 121 22.1 20.4 108
LILY LAKE 9050 15.6 13.3 117 16.6 17.4 95
MONTE CRISTO 8960 36.0 29.8 121 32.1 25.4 126
SALT RIVER SUMMIT 7600 16.5 14.5 114 19.2 18.8 102
TRIAL LAKE 9960 30.4 25.0 122 28.2 24.9 113
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Basin wide percent of average 121 113
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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.