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 FRIDAY: MARCH 17 , 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 20.3 17.4 117 24.5 20.2 121
COTTONWOOD CREEK 7600 26.9 21.7 124 29.2 25.5 115
GRANITE CREEK 6770 20.2 18.0 112 22.2 18.8 118
GRASSY LAKE 7265 36.7 33.2 111 37.5 33.8 111
GROS VENTRE SUMMIT 8750 11.2 13.1 85 11.9 11.9 100
LEWIS LAKE DIVIDE 7850 39.6 33.2 119 37.7 34.4 110
PHILLIPS BENCH 8200 31.2 26.8 116 31.5 27.1 116
SALT RIVER SUMMIT 7600 15.2 13.5 113 17.9 17.5 102
SNAKE RIVER STATION 6920 20.4 18.4 111 25.2 21.0 120
SPRING CREEK DIVIDE 9000 28.9 24.7 117 -M 24.7 *
THUMB DIVIDE 7980 17.9 17.6 102 17.9 17.6 102
TOGWOTEE PASS 9580 22.9 23.0 100 24.0 22.9 105
TWO OCEAN PLATEAU 9240 33.6 25.9 130 24.8 25.8 96
WILLOW CREEK 8450 32.6 28.3 115 36.8 29.9 123
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Basin wide percent of average 114 111
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 20.5 22.1 93 18.1 18.8 96
BLACK BEAR 8170 46.5 36.8 126 -M 37.2 *
CANYON 8090 13.9 12.8 109 16.4 14.3 115
FISHER CREEK 9100 37.8 32.7 116 34.9 33.8 103
MADISON PLATEAU 7750 25.6 23.5 109 30.2 24.7 122
NORTHEAST ENTRANCE 7350 9.8 10.7 92 11.8 11.8 100
PARKER PEAK 9400 17.4 20.1 87 15.7 15.1 104
SYLVAN LAKE 8420 16.8 20.9 80 20.8 19.6 106
THUMB DIVIDE 7980 17.9 17.6 102 17.9 17.6 102
TWO OCEAN PLATEAU 9240 33.6 25.9 130 24.8 25.8 96
WHISKEY CREEK 6800 15.4 16.1 96 21.7 19.4 112
WHITE MILL 8700 24.4 22.6 108 21.7 25.1 86
WOLVERINE 7650 8.8 11.3 78 8.5 12.1 70
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Basin wide percent of average 106 102
WIND RIVER
BURROUGHS CREEK 8750 12.8 13.7 93 14.9 15.1 99
COLD SPRINGS 9630 4.9 8.1 60 7.6 9.6 79
DEER PARK 9700 15.8 15.5 102 19.3 20.0 97
HOBBS PARK 10100 10.2 13.3 77 10.7 11.4 94
LITTLE WARM 9370 8.2 10.8 76 10.9 12.2 89
SOUTH PASS 9040 15.3 15.6 98 16.0 16.9 95
ST. LAWRENCE ALT 8620 3.3 6.7 49 5.9 8.0 74
TOGWOTEE PASS 9580 22.9 23.0 100 24.0 22.9 105
TOWNSEND CREEK 8700 6.0 7.7 78 8.8 10.3 85
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Basin wide percent of average 87 93
BIGHORN BASIN
BALD MTN. 9380 14.1 17.9 79 11.3 15.9 71
BEAR TRAP MEADOW 8200 5.2 4.9 106 6.9 7.4 93
BLACKWATER 9780 20.8 22.7 92 18.8 19.0 99
BONE SPRINGS DIV 9350 12.9 14.6 88 12.9 13.2 98
EVENING STAR 9200 23.5 27.6 85 26.0 23.7 110
GRAVE SPRINGS 8550 8.2 8.3 99 10.1 8.8 115
KIRWIN 9550 8.9 10.3 86 9.6 10.3 93
MARQUETTE 8760 1.8 7.8 23 6.2 8.7 71
MIDDLE POWDER 7760 10.7 10.3 104 9.0 11.0 82
OWL CREEK 8975 2.5 4.8 52 4.5 5.2 87
POWDER RIVER PASS 9480 8.8 9.8 90 10.2 11.2 91
SHELL CREEK 9580 12.6 13.2 95 11.8 12.1 98
SYLVAN LAKE 8420 16.8 20.9 80 20.8 19.6 106
SYLVAN ROAD 7120 10.3 12.3 84 15.7 16.7 94
TIMBER CREEK 7950 1.6 5.0 32 4.1 6.4 64
YOUNTS PEAK 8350 -M 15.9 * 15.6 15.0 104
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Basin wide percent of average 83 95
SHOSHONE RIVER
BLACKWATER 9780 20.8 22.7 92 18.8 19.0 99
EVENING STAR 9200 23.5 27.6 85 26.0 23.7 110
KIRWIN 9550 8.9 10.3 86 9.6 10.3 93
MARQUETTE 8760 1.8 7.8 23 6.2 8.7 71
SYLVAN LAKE 8420 16.8 20.9 80 20.8 19.6 106
SYLVAN ROAD 7120 10.3 12.3 84 15.7 16.7 94
YOUNTS PEAK 8350 -M 15.9 * 15.6 15.0 104
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Basin wide percent of average 81 100
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.2 4.9 106 6.9 7.4 93
BIG GOOSE 7990 5.7 8.9 64 7.9 7.7 103
BONE SPRINGS DIV 9350 12.9 14.6 88 12.9 13.2 98
BURGESS JUNCTION 7880 8.6 10.2 84 9.8 10.9 90
CLOUD PEAK RESERVOIR 9860 11.3 11.6 97 10.2 11.4 89
DOME LAKE 8880 9.2 10.7 86 10.0 11.7 85
GRAVE SPRINGS 8550 8.2 8.3 99 10.1 8.8 115
HANSEN SAWMILL 8360 3.7 5.9 63 5.8 7.3 79
MIDDLE POWDER 7760 10.7 10.3 104 9.0 11.0 82
POWDER RIVER PASS 9480 8.8 9.8 90 10.2 11.2 91
SUCKER CREEK 8880 9.2 10.3 89 12.1 12.1 100
TIE CREEK 6870 4.5 5.8 78 8.9 8.9 100
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Basin wide percent of average 88 94
BELLE FOURCHE
BLIND PARK 6890 7.3 8.3 88 9.9 10.2 97
COLE CANYON 5910 4.6 5.7 81 8.4 -M *
NORTH RAPID CREEK 6130 6.0 7.6 79 7.9 8.1 98
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Basin wide percent of average 83 97
UPPER N. PLATTE RIVER
COLUMBINE 9160 29.5 23.9 123 30.8 23.2 133
DIVIDE PEAK 8860 18.1 18.0 101 20.5 19.0 108
ELK RIVER 8700 19.3 17.9 108 19.8 18.0 110
JOE WRIGHT 10120 20.2 19.3 105 24.2 22.6 107
NORTH FRENCH CREEK 10130 30.8 26.0 118 29.9 22.6 132
OLD BATTLE 9920 34.6 29.6 117 38.6 31.8 121
SAGE CREEK BASIN 7850 12.8 10.5 122 13.5 11.0 123
SOUTH BRUSH CREEK 8440 11.6 11.8 98 15.5 14.9 104
TOWER 10500 48.7 41.7 117 45.9 35.4 130
WEBBER SPRINGS 9250 26.3 24.5 107 31.8 24.5 130
WILLOW CREEK PASS 9540 11.6 10.8 107 12.7 11.7 109
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Basin wide percent of average 113 121
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 24.0 21.3 113 20.5 19.9 103
CASPER MTN. 7850 15.2 12.7 120 15.8 12.8 123
DEADMAN HILL 10220 14.8 14.6 101 16.2 15.2 107
DEER PARK 9700 15.8 15.5 102 19.3 20.0 97
LAPRELE CREEK 8375 9.5 10.1 94 10.3 11.3 91
RENO HILL 8500 14.5 12.3 118 15.8 13.3 119
ROACH 9700 14.7 15.5 95 15.7 16.9 93
SAND LAKE 10050 30.1 29.2 103 29.0 21.8 133
SOUTH PASS 9040 15.3 15.6 98 16.0 16.9 95
WINDY PEAK 7900 7.4 7.3 101 9.3 9.6 97
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Basin wide percent of average 105 106
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 13.8 11.2 123 15.5 14.2 109
DIVIDE PEAK 8860 18.1 18.0 101 20.5 19.0 108
OLD BATTLE 9920 34.6 29.6 117 38.6 31.8 121
SANDSTONE RS 8150 15.2 14.3 106 20.1 17.3 116
WHISKEY PARK 8950 35.3 27.7 127 31.1 26.2 119
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Basin wide percent of average 116 116
UPPER GREEN RIVER
BIG SANDY OPENING 9080 14.0 13.5 104 14.1 12.4 114
BLIND BULL SUM 8900 26.2 26.0 101 19.6 20.9 94
EAST RIM DIVIDE 7930 10.2 12.2 84 10.6 11.2 95
ELKHART PARK G.S. 9400 12.5 12.5 100 13.3 12.2 109
GROS VENTRE SUMMIT 8750 11.2 13.1 85 11.9 11.9 100
KENDALL R.S. 7740 13.7 14.0 98 14.5 13.6 107
LOOMIS PARK 8240 17.7 16.4 108 18.2 16.2 112
NEW FORK LAKE 8340 10.1 10.6 95 9.7 10.5 92
SNIDER BASIN 8060 16.7 13.7 122 15.8 15.0 105
SPRING CREEK DIVIDE 9000 28.9 24.7 117 -M 24.7 *
TRIPLE PEAK 8500 27.9 23.3 120 28.6 23.0 124
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Basin wide percent of average 105 106
LOWER GREEN RIVER
HAMS FORK 7840 14.3 12.2 117 13.0 11.4 114
HEWINTA 9500 11.9 10.6 112 14.1 13.2 107
HICKERSON PARK 9100 4.5 6.6 68 7.0 7.1 99
HOLE-IN-ROCK 9150 6.6 6.5 102 7.5 6.7 112
INDIAN CREEK 9425 29.1 25.5 114 -M 23.5 *
KELLEY R.S. 8180 18.9 15.8 120 20.7 19.0 109
STEEL CREEK PARK 10100 14.8 14.4 103 16.1 14.7 110
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Basin wide percent of average 109 109
UPPER BEAR RIVER
BUG LAKE 7950 22.8 19.3 118 20.0 17.9 112
HAYDEN FORK 9100 20.1 15.1 133 23.1 19.2 120
KELLEY R.S. 8180 18.9 15.8 120 20.7 19.0 109
LILY LAKE 9050 13.7 12.1 113 15.3 16.0 96
MONTE CRISTO 8960 31.1 27.9 111 28.9 23.5 123
SALT RIVER SUMMIT 7600 15.2 13.5 113 17.9 17.5 102
TRIAL LAKE 9960 27.4 23.3 118 24.8 22.9 108
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Basin wide percent of average 117 111
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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.