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 22 , 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 11.5 17.6 65 14.2 20.7 69
COTTONWOOD CREEK 7600 16.8 22.6 74 19.0 26.3 72
GRANITE CREEK 6770 11.6 18.2 64 14.4 19.2 75
GRASSY LAKE 7265 22.3 34.2 65 23.0 34.7 66
GROS VENTRE SUMMIT 8750 9.5 13.5 70 9.5 12.3 77
LEWIS LAKE DIVIDE 7850 20.8 34.0 61 21.2 35.4 60
PHILLIPS BENCH 8200 20.7 27.6 75 20.6 27.9 74
SALT RIVER SUMMIT 7600 11.5 13.9 83 14.8 18.0 82
SNAKE RIVER STATION 6920 10.9 18.7 58 13.2 21.5 61
SPRING CREEK DIVIDE 9000 21.7 25.4 85 20.6 25.4 81
THUMB DIVIDE 7980 11.9 18.1 66 11.6 18.1 64
TOGWOTEE PASS 9580 15.3 23.7 65 15.4 23.5 66
TWO OCEAN PLATEAU 9240 21.0 26.8 78 17.3 26.5 65
WILLOW CREEK 8450 23.2 29.1 80 26.0 30.8 84
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Basin wide percent of average 71 71
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 14.2 22.6 63 12.8 19.3 66
BLACK BEAR 8170 29.9 37.8 79 -M 38.4 *
CANYON 8090 8.5 13.2 64 9.9 14.8 67
FISHER CREEK 9100 23.0 33.6 68 -M 34.8 *
MADISON PLATEAU 7750 16.9 24.1 70 18.4 25.5 72
NORTHEAST ENTRANCE 7350 5.6 10.9 51 7.0 12.2 57
PARKER PEAK 9400 14.1 20.7 68 11.8 15.5 76
SYLVAN LAKE 8420 13.4 21.5 62 15.1 20.1 75
THUMB DIVIDE 7980 11.9 18.1 66 11.6 18.1 64
TWO OCEAN PLATEAU 9240 21.0 26.8 78 17.3 26.5 65
WHISKEY CREEK 6800 11.7 16.5 71 14.5 20.0 72
WHITE MILL 8700 15.7 23.2 68 14.7 25.8 57
WOLVERINE 7650 7.2 11.4 63 7.0 12.4 56
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Basin wide percent of average 69 67
WIND RIVER
BURROUGHS CREEK 8750 8.8 14.0 63 9.2 15.5 59
COLD SPRINGS 9630 6.8 8.4 81 7.4 10.0 74
DEER PARK 9700 20.5 16.0 128 22.7 20.7 110
HOBBS PARK 10100 13.3 13.9 96 11.8 11.9 99
LITTLE WARM 9370 7.2 11.2 64 8.1 12.7 64
SOUTH PASS 9040 18.4 15.9 116 18.7 17.4 107
ST. LAWRENCE ALT 8620 6.2 6.9 90 7.6 8.3 92
TOGWOTEE PASS 9580 15.3 23.7 65 15.4 23.5 66
TOWNSEND CREEK 8700 9.2 8.1 114 12.2 10.8 113
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Basin wide percent of average 90 86
BIGHORN BASIN
BALD MTN. 9380 15.0 18.5 81 13.9 16.4 85
BEAR TRAP MEADOW 8200 4.5 5.0 90 6.7 7.7 87
BLACKWATER 9780 13.1 23.4 56 12.2 19.6 62
BONE SPRINGS DIV 9350 13.4 15.2 88 13.3 13.7 97
EVENING STAR 9200 16.0 28.5 56 17.9 24.3 74
GRAVE SPRINGS 8550 6.2 8.7 71 7.6 9.1 84
KIRWIN 9550 5.9 10.7 55 7.0 10.6 66
MARQUETTE 8760 4.0 8.2 49 5.7 9.1 63
MIDDLE POWDER 7760 7.4 10.8 69 6.8 11.5 59
OWL CREEK 8975 3.6 5.1 71 3.6 5.4 67
POWDER RIVER PASS 9480 10.4 10.2 102 11.4 11.6 98
SHELL CREEK 9580 13.1 13.8 95 11.5 12.6 91
SYLVAN LAKE 8420 13.4 21.5 62 15.1 20.1 75
SYLVAN ROAD 7120 8.3 12.5 66 10.8 17.1 63
TIMBER CREEK 7950 2.5 5.3 47 3.2 6.8 47
YOUNTS PEAK 8350 9.7 16.4 59 9.6 15.4 62
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Basin wide percent of average 69 74
SHOSHONE RIVER
BLACKWATER 9780 13.1 23.4 56 12.2 19.6 62
EVENING STAR 9200 16.0 28.5 56 17.9 24.3 74
KIRWIN 9550 5.9 10.7 55 7.0 10.6 66
MARQUETTE 8760 4.0 8.2 49 5.7 9.1 63
SYLVAN LAKE 8420 13.4 21.5 62 15.1 20.1 75
SYLVAN ROAD 7120 8.3 12.5 66 10.8 17.1 63
YOUNTS PEAK 8350 9.7 16.4 59 9.6 15.4 62
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Basin wide percent of average 58 67
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.5 5.0 90 6.7 7.7 87
BIG GOOSE 7990 7.6 9.5 80 8.6 8.0 108
BONE SPRINGS DIV 9350 13.4 15.2 88 13.3 13.7 97
BURGESS JUNCTION 7880 8.9 10.7 83 9.8 11.3 87
CLOUD PEAK RESERVOIR 9860 13.3 12.3 108 10.8 11.9 91
DOME LAKE 8880 10.3 11.4 90 11.0 12.2 90
GRAVE SPRINGS 8550 6.2 8.7 71 7.6 9.1 84
HANSEN SAWMILL 8360 6.1 6.1 100 7.4 7.6 97
MIDDLE POWDER 7760 7.4 10.8 69 6.8 11.5 59
POWDER RIVER PASS 9480 10.4 10.2 102 11.4 11.6 98
SUCKER CREEK 8880 11.0 10.8 102 12.5 12.6 99
TIE CREEK 6870 2.2 5.9 37 7.7 9.3 83
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Basin wide percent of average 87 90
BELLE FOURCHE
BLIND PARK 6890 5.0 8.5 59 7.2 10.5 69
COLE CANYON 5910 2.9 5.8 50 5.5 -M *
NORTH RAPID CREEK 6130 3.8 7.8 49 6.0 8.2 73
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Basin wide percent of average 53 71
UPPER N. PLATTE RIVER
COLUMBINE 9160 18.5 24.3 76 19.9 23.9 83
DIVIDE PEAK 8860 18.8 18.6 101 21.2 19.6 108
ELK RIVER 8700 20.2 18.5 109 19.2 18.5 104
JOE WRIGHT 10120 18.2 20.0 91 18.8 23.4 80
NORTH FRENCH CREEK 10130 23.1 27.1 85 22.0 23.3 94
OLD BATTLE 9920 31.3 30.5 103 32.8 32.8 100
SAGE CREEK BASIN 7850 14.4 10.8 133 15.0 11.4 132
SOUTH BRUSH CREEK 8440 11.5 12.3 93 12.5 15.4 81
TOWER 10500 34.7 43.1 81 33.1 36.4 91
WEBBER SPRINGS 9250 22.2 25.2 88 24.9 25.3 98
WILLOW CREEK PASS 9540 12.5 11.2 112 11.7 12.1 97
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Basin wide percent of average 93 95
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 16.4 22.2 74 15.6 20.6 76
CASPER MTN. 7850 10.1 13.4 75 10.9 13.3 82
DEADMAN HILL 10220 15.0 15.2 99 12.8 15.8 81
DEER PARK 9700 20.5 16.0 128 22.7 20.7 110
LAPRELE CREEK 8375 6.6 10.4 63 8.5 11.8 72
RENO HILL 8500 8.9 12.9 69 9.6 13.9 69
ROACH 9700 13.2 16.1 82 15.6 17.5 89
SAND LAKE 10050 21.4 30.3 71 19.9 22.6 88
SOUTH PASS 9040 18.4 15.9 116 18.7 17.4 107
WINDY PEAK 7900 6.1 7.6 80 7.6 9.9 77
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Basin wide percent of average 85 87
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 13.2 11.1 119 13.6 14.7 93
DIVIDE PEAK 8860 18.8 18.6 101 21.2 19.6 108
OLD BATTLE 9920 31.3 30.5 103 32.8 32.8 100
SANDSTONE RS 8150 12.6 14.4 88 17.7 17.8 99
WHISKEY PARK 8950 25.0 28.6 87 22.9 27.1 85
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Basin wide percent of average 98 97
UPPER GREEN RIVER
BIG SANDY OPENING 9080 14.2 13.9 102 13.7 12.8 107
BLIND BULL SUM 8900 17.4 26.8 65 14.7 21.4 69
EAST RIM DIVIDE 7930 7.8 12.6 62 8.7 11.6 75
ELKHART PARK G.S. 9400 10.5 12.8 82 11.7 12.6 93
GROS VENTRE SUMMIT 8750 9.5 13.5 70 9.5 12.3 77
KENDALL R.S. 7740 -M 14.2 * 11.4 14.0 81
LOOMIS PARK 8240 12.8 16.7 77 13.2 16.7 79
NEW FORK LAKE 8340 9.3 10.8 86 8.5 10.8 79
SNIDER BASIN 8060 12.5 14.1 89 13.0 15.5 84
SPRING CREEK DIVIDE 9000 21.7 25.4 85 20.6 25.4 81
TRIPLE PEAK 8500 17.8 24.0 74 18.5 23.7 78
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Basin wide percent of average 78 81
LOWER GREEN RIVER
HAMS FORK 7840 10.6 12.1 88 11.5 11.7 98
HEWINTA 9500 10.3 11.1 93 10.9 13.7 80
HICKERSON PARK 9100 8.3 7.0 119 9.7 7.4 131
HOLE-IN-ROCK 9150 6.3 6.7 94 8.9 7.0 127
INDIAN CREEK 9425 25.0 26.4 95 21.5 24.2 89
KELLEY R.S. 8180 15.1 16.2 93 16.9 19.5 87
STEEL CREEK PARK 10100 13.6 14.9 91 14.0 15.2 92
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Basin wide percent of average 94 95
UPPER BEAR RIVER
BUG LAKE 7950 19.0 20.0 95 20.2 18.4 110
HAYDEN FORK 9100 17.4 15.6 112 21.7 19.9 109
KELLEY R.S. 8180 15.1 16.2 93 16.9 19.5 87
LILY LAKE 9050 15.0 12.6 119 16.0 16.5 97
MONTE CRISTO 8960 26.5 28.6 93 25.9 24.2 107
SALT RIVER SUMMIT 7600 11.5 13.9 83 14.8 18.0 82
TRIAL LAKE 9960 27.2 23.9 114 27.7 23.7 117
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Basin wide percent of average 101 102
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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.