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: MARCH 11 , 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 20.0 16.9 118 24.0 19.6 122
COTTONWOOD CREEK 7600 26.1 20.6 127 28.3 24.5 116
GRANITE CREEK 6770 19.6 17.4 113 21.7 18.3 119
GRASSY LAKE 7265 34.9 31.9 109 37.2 32.7 114
GROS VENTRE SUMMIT 8750 10.8 12.5 86 -M 11.5 *
LEWIS LAKE DIVIDE 7850 37.8 31.9 118 36.5 33.3 110
PHILLIPS BENCH 8200 29.5 25.8 114 30.1 26.1 115
SALT RIVER SUMMIT 7600 14.9 13.1 114 17.3 16.8 103
SNAKE RIVER STATION 6920 19.5 17.8 110 24.5 20.5 120
SPRING CREEK DIVIDE 9000 28.1 23.8 118 -M 23.9 *
THUMB DIVIDE 7980 17.0 16.8 101 17.3 17.0 102
TOGWOTEE PASS 9580 22.2 22.1 100 23.4 22.1 106
TWO OCEAN PLATEAU 9240 32.4 24.9 130 24.7 24.9 99
WILLOW CREEK 8450 31.8 27.3 116 35.7 28.8 124
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Basin wide percent of average 114 113
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 19.6 21.3 92 17.2 18.1 95
BLACK BEAR 8170 45.4 35.4 128 -M 35.8 *
CANYON 8090 13.5 12.3 110 15.7 13.8 114
FISHER CREEK 9100 37.1 31.5 118 34.2 32.6 105
MADISON PLATEAU 7750 24.8 22.5 110 29.5 23.7 124
NORTHEAST ENTRANCE 7350 9.4 10.3 91 11.3 11.4 99
PARKER PEAK 9400 16.5 19.4 85 14.7 14.6 101
SYLVAN LAKE 8420 15.8 20.1 79 20.0 18.9 106
THUMB DIVIDE 7980 17.0 16.8 101 17.3 17.0 102
TWO OCEAN PLATEAU 9240 32.4 24.9 130 24.7 24.9 99
WHISKEY CREEK 6800 14.9 15.5 96 21.3 18.6 115
WHITE MILL 8700 23.7 21.7 109 21.1 24.2 87
WOLVERINE 7650 8.3 11.1 75 7.9 11.7 68
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Basin wide percent of average 106 102
WIND RIVER
BURROUGHS CREEK 8750 12.3 13.2 93 14.5 14.6 99
COLD SPRINGS 9630 4.5 7.8 58 7.3 9.1 80
DEER PARK 9700 15.3 15.0 102 19.0 19.2 99
HOBBS PARK 10100 9.4 12.8 73 9.8 10.9 90
LITTLE WARM 9370 7.9 10.3 77 10.4 11.7 89
SOUTH PASS 9040 14.7 15.0 98 15.6 16.2 96
ST. LAWRENCE ALT 8620 2.8 6.4 44 5.6 7.6 74
TOGWOTEE PASS 9580 22.2 22.1 100 23.4 22.1 106
TOWNSEND CREEK 8700 5.3 7.4 72 8.3 9.8 85
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Basin wide percent of average 86 94
BIGHORN BASIN
BALD MTN. 9380 13.4 17.1 78 10.4 15.2 68
BEAR TRAP MEADOW 8200 4.5 4.7 96 6.5 7.0 93
BLACKWATER 9780 20.0 21.8 92 18.0 18.3 98
BONE SPRINGS DIV 9350 12.1 14.1 86 11.9 12.6 94
EVENING STAR 9200 22.5 26.6 85 24.9 23.0 108
GRAVE SPRINGS 8550 7.6 7.9 96 9.7 8.4 115
KIRWIN 9550 8.5 9.8 87 9.2 9.9 93
MARQUETTE 8760 1.6 7.4 22 6.0 8.2 73
MIDDLE POWDER 7760 10.2 9.8 104 8.7 10.5 83
OWL CREEK 8975 2.3 4.5 51 4.1 4.9 84
POWDER RIVER PASS 9480 8.3 9.4 88 9.6 10.8 89
SHELL CREEK 9580 12.0 12.7 94 11.3 11.6 97
SYLVAN LAKE 8420 15.8 20.1 79 20.0 18.9 106
SYLVAN ROAD 7120 9.3 12.0 78 14.9 16.3 91
TIMBER CREEK 7950 1.5 4.7 32 4.2 6.0 70
YOUNTS PEAK 8350 -M 15.4 * 15.5 14.5 107
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Basin wide percent of average 82 94
SHOSHONE RIVER
BLACKWATER 9780 20.0 21.8 92 18.0 18.3 98
EVENING STAR 9200 22.5 26.6 85 24.9 23.0 108
KIRWIN 9550 8.5 9.8 87 9.2 9.9 93
MARQUETTE 8760 1.6 7.4 22 6.0 8.2 73
SYLVAN LAKE 8420 15.8 20.1 79 20.0 18.9 106
SYLVAN ROAD 7120 9.3 12.0 78 14.9 16.3 91
YOUNTS PEAK 8350 -M 15.4 * 15.5 14.5 107
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Basin wide percent of average 80 99
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.5 4.7 96 6.5 7.0 93
BIG GOOSE 7990 5.1 8.4 61 7.3 7.3 100
BONE SPRINGS DIV 9350 12.1 14.1 86 11.9 12.6 94
BURGESS JUNCTION 7880 8.2 9.7 85 9.3 10.4 89
CLOUD PEAK RESERVOIR 9860 10.6 11.0 96 9.4 10.8 87
DOME LAKE 8880 8.7 10.2 85 9.6 11.2 86
GRAVE SPRINGS 8550 7.6 7.9 96 9.7 8.4 115
HANSEN SAWMILL 8360 3.2 5.6 57 5.3 6.9 77
MIDDLE POWDER 7760 10.2 9.8 104 8.7 10.5 83
POWDER RIVER PASS 9480 8.3 9.4 88 9.6 10.8 89
SUCKER CREEK 8880 -M 9.8 * -M 11.5 *
TIE CREEK 6870 4.1 5.5 75 8.5 8.5 100
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Basin wide percent of average 86 92
BELLE FOURCHE
BLIND PARK 6890 6.4 8.0 80 9.3 9.9 94
COLE CANYON 5910 4.2 5.5 76 7.9 -M *
NORTH RAPID CREEK 6130 5.4 7.3 74 7.1 7.9 90
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Basin wide percent of average 77 92
UPPER N. PLATTE RIVER
COLUMBINE 9160 28.4 23.3 122 29.8 22.3 134
DIVIDE PEAK 8860 17.3 17.1 101 19.8 18.2 109
ELK RIVER 8700 18.7 17.2 109 19.0 17.3 110
JOE WRIGHT 10120 19.5 18.5 105 23.0 21.7 106
NORTH FRENCH CREEK 10130 29.9 24.7 121 29.3 21.7 135
OLD BATTLE 9920 33.5 28.4 118 37.1 30.5 122
SAGE CREEK BASIN 7850 12.4 9.9 125 13.1 10.6 124
SOUTH BRUSH CREEK 8440 11.4 11.1 103 14.9 14.3 104
TOWER 10500 47.0 40.2 117 44.2 34.1 130
WEBBER SPRINGS 9250 25.2 23.4 108 30.8 23.6 131
WILLOW CREEK PASS 9540 11.1 10.3 108 11.8 11.2 105
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Basin wide percent of average 114 121
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 22.8 20.4 112 19.7 19.0 104
CASPER MTN. 7850 14.7 12.2 120 15.3 12.2 125
DEADMAN HILL 10220 14.1 14.0 101 15.5 14.5 107
DEER PARK 9700 15.3 15.0 102 19.0 19.2 99
LAPRELE CREEK 8375 8.7 9.7 90 9.5 10.8 88
RENO HILL 8500 13.7 11.5 119 14.9 12.6 118
ROACH 9700 13.9 14.9 93 15.3 16.1 95
SAND LAKE 10050 29.0 27.7 105 28.0 20.9 134
SOUTH PASS 9040 14.7 15.0 98 15.6 16.2 96
WINDY PEAK 7900 6.6 6.9 96 8.8 9.2 96
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Basin wide percent of average 104 107
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 12.6 10.8 117 14.6 13.5 108
DIVIDE PEAK 8860 17.3 17.1 101 19.8 18.2 109
OLD BATTLE 9920 33.5 28.4 118 37.1 30.5 122
SANDSTONE RS 8150 14.3 13.7 104 19.4 16.7 116
WHISKEY PARK 8950 34.2 26.3 130 30.8 25.1 123
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Basin wide percent of average 116 117
UPPER GREEN RIVER
BIG SANDY OPENING 9080 13.4 13.0 103 13.4 12.0 112
BLIND BULL SUM 8900 25.5 25.0 102 19.1 20.2 95
EAST RIM DIVIDE 7930 10.0 11.8 85 10.4 10.8 96
ELKHART PARK G.S. 9400 12.1 12.0 101 13.0 11.7 111
GROS VENTRE SUMMIT 8750 10.8 12.5 86 -M 11.5 *
KENDALL R.S. 7740 13.3 13.5 99 14.2 13.2 108
LOOMIS PARK 8240 17.5 15.7 111 17.8 15.7 113
NEW FORK LAKE 8340 9.8 10.2 96 9.3 10.2 91
SNIDER BASIN 8060 16.4 13.3 123 15.2 14.5 105
SPRING CREEK DIVIDE 9000 28.1 23.8 118 -M 23.9 *
TRIPLE PEAK 8500 27.3 22.5 121 27.8 22.1 126
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Basin wide percent of average 106 108
LOWER GREEN RIVER
HAMS FORK 7840 13.8 11.9 116 12.7 11.0 115
HEWINTA 9500 -M 10.0 * -M 12.6 *
HICKERSON PARK 9100 3.9 6.3 62 6.5 6.8 96
HOLE-IN-ROCK 9150 6.2 6.2 100 7.1 6.3 113
INDIAN CREEK 9425 28.1 24.3 116 -M 22.6 *
KELLEY R.S. 8180 18.4 15.1 122 20.1 18.3 110
STEEL CREEK PARK 10100 14.0 13.8 101 15.3 14.0 109
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Basin wide percent of average 109 109
UPPER BEAR RIVER
BUG LAKE 7950 22.1 18.5 119 19.5 17.3 113
HAYDEN FORK 9100 19.1 14.4 133 22.1 18.4 120
KELLEY R.S. 8180 18.4 15.1 122 20.1 18.3 110
LILY LAKE 9050 13.2 11.6 114 14.5 15.4 94
MONTE CRISTO 8960 30.0 26.8 112 28.7 22.6 127
SALT RIVER SUMMIT 7600 14.9 13.1 114 17.3 16.8 103
TRIAL LAKE 9960 26.5 22.3 119 24.7 22.0 112
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Basin wide percent of average 118 112
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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.