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 SATURDAY: FEBRUARY 26 , 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 11.1 15.7 71 12.6 18.2 69
COTTONWOOD CREEK 7600 14.2 18.0 79 16.2 22.5 72
GRANITE CREEK 6770 11.0 15.7 70 13.5 17.0 79
GRASSY LAKE 7265 20.7 28.8 72 21.8 30.4 72
GROS VENTRE SUMMIT 8750 9.0 11.3 80 8.7 10.6 82
LEWIS LAKE DIVIDE 7850 19.2 29.0 66 19.2 30.8 62
PHILLIPS BENCH 8200 18.6 23.3 80 18.8 24.1 78
SALT RIVER SUMMIT 7600 10.2 11.9 86 13.6 15.5 88
SNAKE RIVER STATION 6920 10.2 16.2 63 12.5 19.1 65
SPRING CREEK DIVIDE 9000 19.6 21.7 90 18.9 22.1 86
THUMB DIVIDE 7980 10.9 15.0 73 10.8 15.6 69
TOGWOTEE PASS 9580 13.2 20.3 65 13.2 20.3 65
TWO OCEAN PLATEAU 9240 18.6 22.8 82 15.4 22.9 67
WILLOW CREEK 8450 19.7 24.8 79 22.4 26.4 85
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Basin wide percent of average 75 74
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 11.6 19.4 60 10.4 16.8 62
BLACK BEAR 8170 27.6 32.1 86 25.9 32.5 80
CANYON 8090 7.5 11.0 68 8.9 12.8 70
FISHER CREEK 9100 19.8 29.0 68 19.3 30.0 64
MADISON PLATEAU 7750 15.7 20.4 77 17.3 21.6 80
NORTHEAST ENTRANCE 7350 4.4 9.5 46 5.7 10.6 54
PARKER PEAK 9400 12.1 17.8 68 10.0 13.4 75
SYLVAN LAKE 8420 12.1 18.4 66 13.7 17.6 78
THUMB DIVIDE 7980 10.9 15.0 73 10.8 15.6 69
TWO OCEAN PLATEAU 9240 18.6 22.8 82 15.4 22.9 67
WHISKEY CREEK 6800 10.8 14.0 77 14.0 17.0 82
WHITE MILL 8700 13.1 19.8 66 12.4 22.2 56
WOLVERINE 7650 6.2 10.4 60 6.1 11.0 55
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Basin wide percent of average 71 70
WIND RIVER
BURROUGHS CREEK 8750 7.7 12.3 63 7.8 13.4 58
COLD SPRINGS 9630 6.2 7.0 89 6.7 8.3 81
DEER PARK 9700 19.4 14.2 137 21.6 17.4 124
HOBBS PARK 10100 12.2 11.6 105 11.0 9.7 113
LITTLE WARM 9370 6.5 9.3 70 7.2 10.7 67
SOUTH PASS 9040 17.0 13.7 124 17.5 14.7 119
ST. LAWRENCE ALT 8620 5.7 5.8 98 6.8 6.9 99
TOGWOTEE PASS 9580 13.2 20.3 65 13.2 20.3 65
TOWNSEND CREEK 8700 8.5 6.8 125 11.5 8.7 132
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Basin wide percent of average 95 94
BIGHORN BASIN
BALD MTN. 9380 11.7 15.7 75 10.9 13.9 78
BEAR TRAP MEADOW 8200 3.2 4.2 76 5.3 6.3 84
BLACKWATER 9780 11.5 19.9 58 10.8 16.9 64
BONE SPRINGS DIV 9350 10.5 12.9 81 10.2 11.4 89
EVENING STAR 9200 13.9 24.4 57 15.3 21.4 71
GRAVE SPRINGS 8550 4.5 7.1 63 6.1 7.7 79
KIRWIN 9550 5.4 8.9 61 6.1 9.0 68
MARQUETTE 8760 2.8 6.8 41 4.5 7.4 61
MIDDLE POWDER 7760 4.6 8.8 52 5.5 9.5 58
OWL CREEK 8975 2.9 4.0 72 3.1 4.3 72
POWDER RIVER PASS 9480 8.6 8.5 101 9.5 9.8 97
SHELL CREEK 9580 10.4 11.6 90 9.3 10.6 88
SYLVAN LAKE 8420 12.1 18.4 66 13.7 17.6 78
SYLVAN ROAD 7120 7.3 11.1 66 10.2 15.4 66
TIMBER CREEK 7950 1.5 4.1 37 2.2 5.3 42
YOUNTS PEAK 8350 8.5 14.3 59 8.5 13.4 63
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Basin wide percent of average 66 73
SHOSHONE RIVER
BLACKWATER 9780 11.5 19.9 58 10.8 16.9 64
EVENING STAR 9200 13.9 24.4 57 15.3 21.4 71
KIRWIN 9550 5.4 8.9 61 6.1 9.0 68
MARQUETTE 8760 2.8 6.8 41 4.5 7.4 61
SYLVAN LAKE 8420 12.1 18.4 66 13.7 17.6 78
SYLVAN ROAD 7120 7.3 11.1 66 10.2 15.4 66
YOUNTS PEAK 8350 8.5 14.3 59 8.5 13.4 63
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Basin wide percent of average 59 68
POWDER-TONGUE
BEAR TRAP MEADOW 8200 3.2 4.2 76 5.3 6.3 84
BIG GOOSE 7990 5.2 7.5 69 6.5 6.7 97
BONE SPRINGS DIV 9350 10.5 12.9 81 10.2 11.4 89
BURGESS JUNCTION 7880 5.8 8.8 66 7.1 9.3 76
CLOUD PEAK RESERVOIR 9860 9.9 9.8 101 8.0 9.6 83
DOME LAKE 8880 7.6 9.3 82 8.4 10.0 84
GRAVE SPRINGS 8550 4.5 7.1 63 6.1 7.7 79
HANSEN SAWMILL 8360 4.4 5.1 86 5.6 6.2 90
MIDDLE POWDER 7760 4.6 8.8 52 5.5 9.5 58
POWDER RIVER PASS 9480 8.6 8.5 101 9.5 9.8 97
SUCKER CREEK 8880 7.8 8.9 88 9.1 10.3 88
TIE CREEK 6870 .6 4.8 12 5.5 7.8 71
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Basin wide percent of average 76 83
BELLE FOURCHE
BLIND PARK 6890 3.9 6.8 57 5.9 9.1 65
COLE CANYON 5910 1.9 5.0 38 4.6 -M *
NORTH RAPID CREEK 6130 2.3 6.6 35 4.5 7.4 61
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Basin wide percent of average 44 63
UPPER N. PLATTE RIVER
COLUMBINE 9160 15.8 21.3 74 17.0 20.4 83
DIVIDE PEAK 8860 17.5 15.3 114 20.0 16.6 120
ELK RIVER 8700 18.4 15.7 117 18.1 15.7 115
JOE WRIGHT 10120 14.9 16.9 88 15.3 19.8 77
NORTH FRENCH CREEK 10130 19.9 22.2 90 19.2 19.8 97
OLD BATTLE 9920 29.0 25.6 113 30.7 27.8 110
SAGE CREEK BASIN 7850 12.5 8.8 142 14.4 9.7 148
SOUTH BRUSH CREEK 8440 8.8 9.7 91 10.3 13.0 79
TOWER 10500 30.7 36.8 83 29.5 31.2 95
WEBBER SPRINGS 9250 20.5 20.7 99 23.4 21.7 108
WILLOW CREEK PASS 9540 11.5 9.4 122 10.7 10.2 105
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Basin wide percent of average 99 101
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 14.0 18.6 75 13.6 17.2 79
CASPER MTN. 7850 8.2 11.0 75 9.3 10.9 85
DEADMAN HILL 10220 12.4 12.7 98 10.3 13.0 79
DEER PARK 9700 19.4 14.2 137 21.6 17.4 124
LAPRELE CREEK 8375 5.2 8.7 60 7.2 9.8 73
RENO HILL 8500 6.6 10.2 65 7.2 11.3 64
ROACH 9700 12.1 13.6 89 14.7 14.6 101
SAND LAKE 10050 18.2 24.6 74 16.6 18.9 88
SOUTH PASS 9040 17.0 13.7 124 17.5 14.7 119
WINDY PEAK 7900 4.6 5.8 79 6.4 8.3 77
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Basin wide percent of average 88 91
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 11.3 9.5 119 12.4 12.0 103
DIVIDE PEAK 8860 17.5 15.3 114 20.0 16.6 120
OLD BATTLE 9920 29.0 25.6 113 30.7 27.8 110
SANDSTONE RS 8150 10.2 12.2 84 16.4 15.4 106
WHISKEY PARK 8950 21.1 23.2 91 22.2 23.0 97
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Basin wide percent of average 104 107
UPPER GREEN RIVER
BIG SANDY OPENING 9080 13.4 11.8 114 12.9 11.1 116
BLIND BULL SUM 8900 16.1 22.6 71 13.9 18.7 74
EAST RIM DIVIDE 7930 6.8 10.7 64 7.8 10.0 78
ELKHART PARK G.S. 9400 9.4 10.8 87 10.7 10.7 100
GROS VENTRE SUMMIT 8750 9.0 11.3 80 8.7 10.6 82
KENDALL R.S. 7740 9.5 12.1 79 10.3 12.2 84
LOOMIS PARK 8240 11.1 14.1 79 11.7 14.5 81
NEW FORK LAKE 8340 8.2 9.4 87 7.6 9.4 81
SNIDER BASIN 8060 11.6 12.1 96 12.1 13.4 90
SPRING CREEK DIVIDE 9000 19.6 21.7 90 18.9 22.1 86
TRIPLE PEAK 8500 15.1 20.4 74 16.3 20.2 81
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Basin wide percent of average 83 86
LOWER GREEN RIVER
HAMS FORK 7840 10.1 10.7 94 11.0 10.2 108
HEWINTA 9500 7.8 8.8 89 10.1 11.4 89
HICKERSON PARK 9100 7.0 5.6 125 9.1 6.1 149
HOLE-IN-ROCK 9150 5.7 5.5 104 8.4 5.7 147
INDIAN CREEK 9425 22.7 21.7 105 19.8 20.6 96
KELLEY R.S. 8180 14.0 13.6 103 15.7 16.8 93
STEEL CREEK PARK 10100 12.3 12.3 100 12.9 12.6 102
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Basin wide percent of average 102 104
UPPER BEAR RIVER
BUG LAKE 7950 18.0 16.7 108 19.8 15.8 125
HAYDEN FORK 9100 15.7 12.8 123 20.5 16.7 123
KELLEY R.S. 8180 14.0 13.6 103 15.7 16.8 93
LILY LAKE 9050 13.2 10.5 126 15.1 14.0 108
MONTE CRISTO 8960 24.9 24.0 104 24.9 20.6 121
SALT RIVER SUMMIT 7600 10.2 11.9 86 13.6 15.5 88
TRIAL LAKE 9960 25.7 20.0 128 26.8 20.0 134
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Basin wide percent of average 111 114
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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.