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: MARCH 28 , 2005
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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 11.9 17.9 66 14.6 21.3 69
COTTONWOOD CREEK 7600 18.4 23.5 78 20.5 27.2 75
GRANITE CREEK 6770 12.8 18.4 70 15.4 19.8 78
GRASSY LAKE 7265 23.3 35.3 66 24.0 35.7 67
GROS VENTRE SUMMIT 8750 10.4 14.0 74 10.4 12.7 82
LEWIS LAKE DIVIDE 7850 22.0 35.1 63 22.1 36.5 61
PHILLIPS BENCH 8200 22.1 28.6 77 21.8 28.8 76
SALT RIVER SUMMIT 7600 13.0 14.3 91 16.4 18.6 88
SNAKE RIVER STATION 6920 11.4 19.0 60 13.8 22.1 62
SPRING CREEK DIVIDE 9000 23.4 26.3 89 21.9 26.2 84
THUMB DIVIDE 7980 12.7 18.8 68 12.3 18.7 66
TOGWOTEE PASS 9580 15.9 24.6 65 15.9 24.4 65
TWO OCEAN PLATEAU 9240 21.8 27.7 79 17.6 27.4 64
WILLOW CREEK 8450 25.0 30.0 83 27.9 31.9 87
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Basin wide percent of average 73 72
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 14.8 23.2 64 13.4 19.9 67
BLACK BEAR 8170 31.3 39.0 80 -M 39.9 *
CANYON 8090 8.8 13.6 65 10.4 15.3 68
FISHER CREEK 9100 24.0 34.7 69 -M 36.0 *
MADISON PLATEAU 7750 18.1 25.0 72 19.5 26.5 74
NORTHEAST ENTRANCE 7350 6.0 11.1 54 7.2 12.5 58
PARKER PEAK 9400 14.6 21.4 68 12.1 16.1 75
SYLVAN LAKE 8420 13.9 22.3 62 15.5 20.7 75
THUMB DIVIDE 7980 12.7 18.8 68 12.3 18.7 66
TWO OCEAN PLATEAU 9240 21.8 27.7 79 17.6 27.4 64
WHISKEY CREEK 6800 12.7 17.0 75 15.6 20.7 75
WHITE MILL 8700 16.5 24.1 68 15.4 26.7 58
WOLVERINE 7650 7.4 11.5 64 7.2 12.7 57
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Basin wide percent of average 70 67
WIND RIVER
BURROUGHS CREEK 8750 9.7 14.5 67 10.1 16.1 63
COLD SPRINGS 9630 7.3 8.8 83 7.8 10.4 75
DEER PARK 9700 21.4 16.7 128 23.4 21.5 109
HOBBS PARK 10100 13.9 14.6 95 12.6 12.5 101
LITTLE WARM 9370 8.1 11.7 69 8.9 13.2 67
SOUTH PASS 9040 19.1 16.4 116 19.4 18.1 107
ST. LAWRENCE ALT 8620 7.1 7.2 99 8.1 8.7 93
TOGWOTEE PASS 9580 15.9 24.6 65 15.9 24.4 65
TOWNSEND CREEK 8700 9.9 8.5 116 12.6 11.3 112
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Basin wide percent of average 91 87
BIGHORN BASIN
BALD MTN. 9380 15.3 19.4 79 14.2 17.1 83
BEAR TRAP MEADOW 8200 4.9 5.1 96 7.1 8.1 88
BLACKWATER 9780 13.9 24.2 57 13.0 20.2 64
BONE SPRINGS DIV 9350 13.8 15.9 87 13.7 14.3 96
EVENING STAR 9200 17.0 29.4 58 18.5 25.0 74
GRAVE SPRINGS 8550 6.7 9.1 74 7.9 9.5 83
KIRWIN 9550 6.5 11.2 58 7.5 11.0 68
MARQUETTE 8760 4.3 8.7 49 6.1 9.5 64
MIDDLE POWDER 7760 7.7 11.4 68 7.3 12.0 61
OWL CREEK 8975 4.2 5.4 78 4.1 5.7 72
POWDER RIVER PASS 9480 10.4 10.6 98 11.8 12.1 98
SHELL CREEK 9580 13.5 14.5 93 12.0 13.1 92
SYLVAN LAKE 8420 13.9 22.3 62 15.5 20.7 75
SYLVAN ROAD 7120 8.4 12.7 66 10.9 17.5 62
TIMBER CREEK 7950 2.7 5.6 48 3.2 7.1 45
YOUNTS PEAK 8350 10.4 16.9 62 10.1 16.0 63
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Basin wide percent of average 69 74
SHOSHONE RIVER
BLACKWATER 9780 13.9 24.2 57 13.0 20.2 64
EVENING STAR 9200 17.0 29.4 58 18.5 25.0 74
KIRWIN 9550 6.5 11.2 58 7.5 11.0 68
MARQUETTE 8760 4.3 8.7 49 6.1 9.5 64
SYLVAN LAKE 8420 13.9 22.3 62 15.5 20.7 75
SYLVAN ROAD 7120 8.4 12.7 66 10.9 17.5 62
YOUNTS PEAK 8350 10.4 16.9 62 10.1 16.0 63
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Basin wide percent of average 59 68
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.9 5.1 96 7.1 8.1 88
BIG GOOSE 7990 7.9 10.2 77 9.1 8.3 110
BONE SPRINGS DIV 9350 13.8 15.9 87 13.7 14.3 96
BURGESS JUNCTION 7880 9.2 11.3 81 10.4 11.9 87
CLOUD PEAK RESERVOIR 9860 13.8 13.0 106 11.5 12.5 92
DOME LAKE 8880 10.6 12.1 88 11.3 12.8 88
GRAVE SPRINGS 8550 6.7 9.1 74 7.9 9.5 83
HANSEN SAWMILL 8360 6.5 6.3 103 7.8 8.0 98
MIDDLE POWDER 7760 7.7 11.4 68 7.3 12.0 61
POWDER RIVER PASS 9480 10.4 10.6 98 11.8 12.1 98
SUCKER CREEK 8880 11.4 11.4 100 12.8 13.2 97
TIE CREEK 6870 2.5 6.0 42 8.0 9.6 83
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Basin wide percent of average 86 90
BELLE FOURCHE
BLIND PARK 6890 5.4 8.6 63 7.5 10.9 69
COLE CANYON 5910 3.4 6.1 56 5.9 -M *
NORTH RAPID CREEK 6130 4.1 8.1 51 6.4 8.5 75
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Basin wide percent of average 57 72
UPPER N. PLATTE RIVER
COLUMBINE 9160 19.2 24.7 78 20.4 24.7 83
DIVIDE PEAK 8860 19.5 19.5 100 21.8 20.3 107
ELK RIVER 8700 21.9 19.2 114 20.2 19.2 105
JOE WRIGHT 10120 19.1 20.9 91 19.6 24.3 81
NORTH FRENCH CREEK 10130 23.7 28.6 83 22.3 24.2 92
OLD BATTLE 9920 32.4 31.6 103 34.0 34.0 100
SAGE CREEK BASIN 7850 14.8 11.3 131 15.4 11.8 131
SOUTH BRUSH CREEK 8440 11.8 12.8 92 12.7 16.0 79
TOWER 10500 36.5 44.7 82 34.5 37.7 92
WEBBER SPRINGS 9250 23.3 25.9 90 25.8 26.2 98
WILLOW CREEK PASS 9540 12.7 11.7 109 12.0 12.6 95
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Basin wide percent of average 94 95
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 17.1 23.2 74 15.9 21.5 74
CASPER MTN. 7850 10.5 14.1 74 11.6 14.0 83
DEADMAN HILL 10220 15.5 15.9 97 13.3 16.5 81
DEER PARK 9700 21.4 16.7 128 23.4 21.5 109
LAPRELE CREEK 8375 6.9 10.8 64 9.2 12.3 75
RENO HILL 8500 9.8 13.8 71 10.6 14.5 73
ROACH 9700 13.7 16.8 82 16.1 18.2 88
SAND LAKE 10050 21.9 31.8 69 20.2 23.6 86
SOUTH PASS 9040 19.1 16.4 116 19.4 18.1 107
WINDY PEAK 7900 6.5 7.9 82 8.2 10.3 80
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Basin wide percent of average 85 87
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 12.6 11.0 115 14.1 15.4 92
DIVIDE PEAK 8860 19.5 19.5 100 21.8 20.3 107
OLD BATTLE 9920 32.4 31.6 103 34.0 34.0 100
SANDSTONE RS 8150 13.3 14.7 90 18.3 18.4 99
WHISKEY PARK 8950 25.8 29.7 87 24.3 28.1 86
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Basin wide percent of average 97 97
UPPER GREEN RIVER
BIG SANDY OPENING 9080 15.4 14.4 107 14.7 13.2 111
BLIND BULL SUM 8900 18.8 27.7 68 15.7 22.1 71
EAST RIM DIVIDE 7930 9.2 13.0 71 9.8 11.9 82
ELKHART PARK G.S. 9400 12.3 13.3 92 13.3 13.1 102
GROS VENTRE SUMMIT 8750 10.4 14.0 74 10.4 12.7 82
KENDALL R.S. 7740 10.7 14.4 74 12.4 14.4 86
LOOMIS PARK 8240 14.8 17.2 86 15.1 17.2 88
NEW FORK LAKE 8340 11.2 11.1 101 10.4 11.2 93
SNIDER BASIN 8060 13.5 14.4 94 13.8 16.0 86
SPRING CREEK DIVIDE 9000 23.4 26.3 89 21.9 26.2 84
TRIPLE PEAK 8500 19.1 24.7 77 19.5 24.5 80
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Basin wide percent of average 83 86
LOWER GREEN RIVER
HAMS FORK 7840 12.2 12.0 102 12.9 12.1 107
HEWINTA 9500 11.4 11.7 97 11.7 14.3 82
HICKERSON PARK 9100 7.4 7.4 100 10.7 7.8 137
HOLE-IN-ROCK 9150 7.4 7.0 106 9.8 7.3 134
INDIAN CREEK 9425 27.2 27.5 99 23.2 25.1 92
KELLEY R.S. 8180 17.2 16.7 103 18.8 20.2 93
STEEL CREEK PARK 10100 14.6 15.5 94 15.2 15.9 96
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Basin wide percent of average 100 100
UPPER BEAR RIVER
BUG LAKE 7950 20.1 20.7 97 21.5 19.1 113
HAYDEN FORK 9100 18.6 16.2 115 23.5 20.7 114
KELLEY R.S. 8180 17.2 16.7 103 18.8 20.2 93
LILY LAKE 9050 16.0 13.1 122 16.8 17.2 98
MONTE CRISTO 8960 28.8 29.5 98 27.9 25.1 111
SALT RIVER SUMMIT 7600 13.0 14.3 91 16.4 18.6 88
TRIAL LAKE 9960 29.0 24.8 117 28.9 24.6 117
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Basin wide percent of average 105 106
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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.