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: FEBRUARY 24 , 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 15.4 72 12.6 17.9 70
COTTONWOOD CREEK 7600 14.2 17.6 81 16.2 22.2 73
GRANITE CREEK 6770 11.0 15.4 71 13.5 16.7 81
GRASSY LAKE 7265 20.7 28.3 73 21.8 29.9 73
GROS VENTRE SUMMIT 8750 9.0 11.1 81 8.7 10.4 84
LEWIS LAKE DIVIDE 7850 19.1 28.5 67 19.2 30.3 63
PHILLIPS BENCH 8200 18.5 22.9 81 18.7 23.7 79
SALT RIVER SUMMIT 7600 10.2 11.7 87 13.6 15.2 89
SNAKE RIVER STATION 6920 10.2 15.9 64 12.5 18.8 66
SPRING CREEK DIVIDE 9000 19.6 21.3 92 18.9 21.8 87
THUMB DIVIDE 7980 11.0 14.7 75 10.7 15.4 69
TOGWOTEE PASS 9580 13.2 20.0 66 13.2 20.0 66
TWO OCEAN PLATEAU 9240 18.5 22.5 82 15.4 22.5 68
WILLOW CREEK 8450 19.6 24.4 80 22.4 26.1 86
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Basin wide percent of average 76 75
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 11.5 19.2 60 10.3 16.5 62
BLACK BEAR 8170 27.7 31.5 88 26.0 32.0 81
CANYON 8090 7.5 10.9 69 8.8 12.6 70
FISHER CREEK 9100 19.8 28.5 69 19.2 29.5 65
MADISON PLATEAU 7750 -M 20.0 * -M 21.3 *
NORTHEAST ENTRANCE 7350 4.4 9.4 47 5.7 10.5 54
PARKER PEAK 9400 12.1 17.6 69 9.9 13.2 75
SYLVAN LAKE 8420 12.0 18.1 66 13.7 17.3 79
THUMB DIVIDE 7980 11.0 14.7 75 10.7 15.4 69
TWO OCEAN PLATEAU 9240 18.5 22.5 82 15.4 22.5 68
WHISKEY CREEK 6800 -M 13.8 * -M 16.8 *
WHITE MILL 8700 13.0 19.5 67 12.3 21.9 56
WOLVERINE 7650 6.2 10.3 60 6.1 10.8 56
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Basin wide percent of average 71 68
WIND RIVER
BURROUGHS CREEK 8750 7.7 12.1 64 7.8 13.3 59
COLD SPRINGS 9630 6.1 6.9 88 6.6 8.2 80
DEER PARK 9700 19.4 14.2 137 21.6 17.2 126
HOBBS PARK 10100 12.2 11.5 106 10.9 9.6 114
LITTLE WARM 9370 6.4 9.1 70 7.2 10.6 68
SOUTH PASS 9040 16.9 13.5 125 17.5 14.5 121
ST. LAWRENCE ALT 8620 5.7 5.7 100 6.8 6.8 100
TOGWOTEE PASS 9580 13.2 20.0 66 13.2 20.0 66
TOWNSEND CREEK 8700 8.3 6.7 124 11.5 8.6 134
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Basin wide percent of average 96 95
BIGHORN BASIN
BALD MTN. 9380 11.7 15.5 75 10.8 13.7 79
BEAR TRAP MEADOW 8200 3.1 4.2 74 5.3 6.2 85
BLACKWATER 9780 11.6 19.6 59 10.8 16.7 65
BONE SPRINGS DIV 9350 10.5 12.7 83 10.1 11.2 90
EVENING STAR 9200 13.8 24.0 58 15.3 21.1 73
GRAVE SPRINGS 8550 4.5 7.0 64 6.1 7.5 81
KIRWIN 9550 5.4 8.8 61 6.1 8.9 69
MARQUETTE 8760 2.7 6.7 40 4.6 7.3 63
MIDDLE POWDER 7760 4.6 8.7 53 5.4 9.4 57
OWL CREEK 8975 2.8 4.0 70 3.0 4.3 70
POWDER RIVER PASS 9480 8.7 8.4 104 9.5 9.7 98
SHELL CREEK 9580 10.4 11.4 91 9.3 10.5 89
SYLVAN LAKE 8420 12.0 18.1 66 13.7 17.3 79
SYLVAN ROAD 7120 7.2 11.0 65 10.2 15.2 67
TIMBER CREEK 7950 1.4 4.1 34 2.2 5.2 42
YOUNTS PEAK 8350 8.4 14.1 60 8.4 13.2 64
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Basin wide percent of average 67 74
SHOSHONE RIVER
BLACKWATER 9780 11.6 19.6 59 10.8 16.7 65
EVENING STAR 9200 13.8 24.0 58 15.3 21.1 73
KIRWIN 9550 5.4 8.8 61 6.1 8.9 69
MARQUETTE 8760 2.7 6.7 40 4.6 7.3 63
SYLVAN LAKE 8420 12.0 18.1 66 13.7 17.3 79
SYLVAN ROAD 7120 7.2 11.0 65 10.2 15.2 67
YOUNTS PEAK 8350 8.4 14.1 60 8.4 13.2 64
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Basin wide percent of average 60 69
POWDER-TONGUE
BEAR TRAP MEADOW 8200 3.1 4.2 74 5.3 6.2 85
BIG GOOSE 7990 5.2 7.4 70 6.4 6.6 97
BONE SPRINGS DIV 9350 10.5 12.7 83 10.1 11.2 90
BURGESS JUNCTION 7880 5.8 8.7 67 7.0 9.2 76
CLOUD PEAK RESERVOIR 9860 10.0 9.6 104 8.2 9.5 86
DOME LAKE 8880 7.6 9.2 83 8.4 9.9 85
GRAVE SPRINGS 8550 4.5 7.0 64 6.1 7.5 81
HANSEN SAWMILL 8360 4.4 5.0 88 5.5 6.1 90
MIDDLE POWDER 7760 4.6 8.7 53 5.4 9.4 57
POWDER RIVER PASS 9480 8.7 8.4 104 9.5 9.7 98
SUCKER CREEK 8880 7.7 8.7 89 9.0 10.2 88
TIE CREEK 6870 .5 4.8 10 5.5 7.7 71
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Basin wide percent of average 77 84
BELLE FOURCHE
BLIND PARK 6890 3.7 6.7 55 5.9 9.0 66
COLE CANYON 5910 1.8 4.9 37 4.6 -M *
NORTH RAPID CREEK 6130 2.4 6.5 37 4.5 7.3 62
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Basin wide percent of average 44 64
UPPER N. PLATTE RIVER
COLUMBINE 9160 15.6 21.0 74 16.8 20.1 84
DIVIDE PEAK 8860 17.4 15.1 115 20.0 16.4 122
ELK RIVER 8700 18.2 15.4 118 18.0 15.5 116
JOE WRIGHT 10120 14.9 16.7 89 15.2 19.5 78
NORTH FRENCH CREEK 10130 19.8 21.8 91 19.1 19.5 98
OLD BATTLE 9920 28.9 25.1 115 30.6 27.4 112
SAGE CREEK BASIN 7850 12.5 8.7 144 14.4 9.5 152
SOUTH BRUSH CREEK 8440 8.7 9.5 92 10.2 12.9 79
TOWER 10500 -M 36.2 * -M 30.7 *
WEBBER SPRINGS 9250 20.4 20.3 100 23.2 21.4 108
WILLOW CREEK PASS 9540 11.6 9.2 126 10.6 10.0 106
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Basin wide percent of average 103 103
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 13.8 18.3 75 13.5 16.9 80
CASPER MTN. 7850 8.1 10.9 74 9.2 10.7 86
DEADMAN HILL 10220 12.3 12.5 98 10.2 12.8 80
DEER PARK 9700 19.4 14.2 137 21.6 17.2 126
LAPRELE CREEK 8375 5.1 8.6 59 7.1 9.7 73
RENO HILL 8500 6.5 10.0 65 7.0 11.1 63
ROACH 9700 12.0 13.4 90 14.8 14.3 103
SAND LAKE 10050 18.1 24.1 75 16.5 18.7 88
SOUTH PASS 9040 16.9 13.5 125 17.5 14.5 121
WINDY PEAK 7900 4.5 5.8 78 6.2 8.2 76
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Basin wide percent of average 89 92
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 11.2 9.3 120 12.2 11.9 103
DIVIDE PEAK 8860 17.4 15.1 115 20.0 16.4 122
OLD BATTLE 9920 28.9 25.1 115 30.6 27.4 112
SANDSTONE RS 8150 10.2 12.0 85 16.3 15.1 108
WHISKEY PARK 8950 20.9 22.8 92 22.0 22.7 97
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Basin wide percent of average 105 108
UPPER GREEN RIVER
BIG SANDY OPENING 9080 13.4 11.6 116 12.9 10.9 118
BLIND BULL SUM 8900 16.0 22.2 72 13.8 18.4 75
EAST RIM DIVIDE 7930 6.7 10.5 64 7.8 9.8 80
ELKHART PARK G.S. 9400 9.4 10.7 88 10.6 10.5 101
GROS VENTRE SUMMIT 8750 9.0 11.1 81 8.7 10.4 84
KENDALL R.S. 7740 9.5 11.9 80 10.3 12.0 86
LOOMIS PARK 8240 11.1 13.9 80 11.7 14.3 82
NEW FORK LAKE 8340 8.2 9.2 89 7.6 9.3 82
SNIDER BASIN 8060 11.6 11.9 97 12.1 13.2 92
SPRING CREEK DIVIDE 9000 19.6 21.3 92 18.9 21.8 87
TRIPLE PEAK 8500 15.1 20.1 75 16.3 19.9 82
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Basin wide percent of average 84 87
LOWER GREEN RIVER
HAMS FORK 7840 10.1 10.5 96 11.0 10.0 110
HEWINTA 9500 7.6 8.6 88 10.1 11.2 90
HICKERSON PARK 9100 6.8 5.5 124 9.2 6.0 153
HOLE-IN-ROCK 9150 5.6 5.4 104 8.4 5.6 150
INDIAN CREEK 9425 22.6 21.4 106 19.8 20.3 98
KELLEY R.S. 8180 14.0 13.4 104 15.7 16.6 95
STEEL CREEK PARK 10100 12.3 12.1 102 12.9 12.4 104
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Basin wide percent of average 103 106
UPPER BEAR RIVER
BUG LAKE 7950 18.0 16.4 110 19.9 15.6 128
HAYDEN FORK 9100 15.6 12.6 124 20.4 16.5 124
KELLEY R.S. 8180 14.0 13.4 104 15.7 16.6 95
LILY LAKE 9050 13.1 10.3 127 15.0 13.8 109
MONTE CRISTO 8960 24.8 23.5 106 24.8 20.3 122
SALT RIVER SUMMIT 7600 10.2 11.7 87 13.6 15.2 89
TRIAL LAKE 9960 25.6 19.7 130 26.7 19.7 136
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Basin wide percent of average 113 116
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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.