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 MONDAY: MARCH 13 , 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 17.1 117 24.0 19.8 121
COTTONWOOD CREEK 7600 26.1 21.0 124 28.4 24.9 114
GRANITE CREEK 6770 19.6 17.6 111 21.7 18.4 118
GRASSY LAKE 7265 35.0 32.3 108 37.3 33.1 113
GROS VENTRE SUMMIT 8750 10.9 12.7 86 12.0 11.7 103
LEWIS LAKE DIVIDE 7850 37.7 32.4 116 36.6 33.7 109
PHILLIPS BENCH 8200 29.6 26.1 113 30.2 26.5 114
SALT RIVER SUMMIT 7600 15.0 13.2 114 17.4 17.0 102
SNAKE RIVER STATION 6920 19.6 18.1 108 24.5 20.7 118
SPRING CREEK DIVIDE 9000 28.2 24.1 117 -M 24.2 *
THUMB DIVIDE 7980 17.1 17.1 100 17.4 17.2 101
TOGWOTEE PASS 9580 22.4 22.4 100 23.4 22.3 105
TWO OCEAN PLATEAU 9240 32.4 25.3 128 24.8 25.2 98
WILLOW CREEK 8450 31.9 27.6 116 35.9 29.2 123
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Basin wide percent of average 113 111
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 19.7 21.6 91 17.4 18.3 95
BLACK BEAR 8170 45.3 35.9 126 -M 36.2 *
CANYON 8090 13.5 12.5 108 15.8 14.0 113
FISHER CREEK 9100 37.0 31.9 116 34.4 33.0 104
MADISON PLATEAU 7750 24.8 22.9 108 30.1 24.0 125
NORTHEAST ENTRANCE 7350 9.2 10.5 88 11.3 11.6 97
PARKER PEAK 9400 16.7 19.7 85 15.0 14.7 102
SYLVAN LAKE 8420 15.9 20.3 78 19.7 19.1 103
THUMB DIVIDE 7980 17.1 17.1 100 17.4 17.2 101
TWO OCEAN PLATEAU 9240 32.4 25.3 128 24.8 25.2 98
WHISKEY CREEK 6800 14.8 15.7 94 21.4 18.9 113
WHITE MILL 8700 23.7 22.0 108 21.2 24.5 87
WOLVERINE 7650 8.1 11.2 72 8.1 11.9 68
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Basin wide percent of average 104 102
WIND RIVER
BURROUGHS CREEK 8750 12.5 13.4 93 14.5 14.7 99
COLD SPRINGS 9630 4.7 7.9 59 7.5 9.3 81
DEER PARK 9700 15.5 15.2 102 18.9 19.5 97
HOBBS PARK 10100 9.8 12.9 76 10.2 11.1 92
LITTLE WARM 9370 8.0 10.4 77 10.3 11.9 87
SOUTH PASS 9040 14.9 15.2 98 15.8 16.4 96
ST. LAWRENCE ALT 8620 3.1 6.5 48 5.8 7.7 75
TOGWOTEE PASS 9580 22.4 22.4 100 23.4 22.3 105
TOWNSEND CREEK 8700 5.6 7.5 75 8.6 10.0 86
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Basin wide percent of average 87 94
BIGHORN BASIN
BALD MTN. 9380 13.5 17.4 78 10.5 15.4 68
BEAR TRAP MEADOW 8200 4.9 4.8 102 6.7 7.1 94
BLACKWATER 9780 20.2 22.1 91 18.2 18.6 98
BONE SPRINGS DIV 9350 12.2 14.2 86 12.0 12.8 94
EVENING STAR 9200 22.5 27.0 83 25.1 23.2 108
GRAVE SPRINGS 8550 7.8 8.1 96 10.0 8.5 118
KIRWIN 9550 8.7 10.0 87 9.4 10.0 94
MARQUETTE 8760 1.7 7.5 23 6.1 8.4 73
MIDDLE POWDER 7760 10.4 9.9 105 8.8 10.7 82
OWL CREEK 8975 2.4 4.6 52 4.3 5.0 86
POWDER RIVER PASS 9480 8.6 9.6 90 9.6 10.9 88
SHELL CREEK 9580 12.1 12.8 95 11.4 11.8 97
SYLVAN LAKE 8420 15.9 20.3 78 19.7 19.1 103
SYLVAN ROAD 7120 9.5 12.1 79 14.3 16.5 87
TIMBER CREEK 7950 1.5 4.8 31 4.2 6.2 68
YOUNTS PEAK 8350 -M 15.5 * 15.6 14.6 107
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Basin wide percent of average 82 94
SHOSHONE RIVER
BLACKWATER 9780 20.2 22.1 91 18.2 18.6 98
EVENING STAR 9200 22.5 27.0 83 25.1 23.2 108
KIRWIN 9550 8.7 10.0 87 9.4 10.0 94
MARQUETTE 8760 1.7 7.5 23 6.1 8.4 73
SYLVAN LAKE 8420 15.9 20.3 78 19.7 19.1 103
SYLVAN ROAD 7120 9.5 12.1 79 14.3 16.5 87
YOUNTS PEAK 8350 -M 15.5 * 15.6 14.6 107
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Basin wide percent of average 79 98
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.9 4.8 102 6.7 7.1 94
BIG GOOSE 7990 5.3 8.6 62 7.4 7.5 99
BONE SPRINGS DIV 9350 12.2 14.2 86 12.0 12.8 94
BURGESS JUNCTION 7880 8.2 9.9 83 9.5 10.5 90
CLOUD PEAK RESERVOIR 9860 10.9 11.2 97 9.7 11.0 88
DOME LAKE 8880 8.8 10.4 85 9.7 11.4 85
GRAVE SPRINGS 8550 7.8 8.1 96 10.0 8.5 118
HANSEN SAWMILL 8360 3.4 5.7 60 5.5 7.0 79
MIDDLE POWDER 7760 10.4 9.9 105 8.8 10.7 82
POWDER RIVER PASS 9480 8.6 9.6 90 9.6 10.9 88
SUCKER CREEK 8880 -M 10.0 * -M 11.7 *
TIE CREEK 6870 4.0 5.7 70 8.6 8.7 99
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Basin wide percent of average 86 92
BELLE FOURCHE
BLIND PARK 6890 7.1 8.1 88 9.5 10.0 95
COLE CANYON 5910 3.7 5.5 67 8.1 -M *
NORTH RAPID CREEK 6130 5.9 7.4 80 7.7 7.9 97
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Basin wide percent of average 80 96
UPPER N. PLATTE RIVER
COLUMBINE 9160 28.8 23.5 123 30.0 22.6 133
DIVIDE PEAK 8860 17.6 17.4 101 20.1 18.5 109
ELK RIVER 8700 18.9 17.5 108 19.4 17.5 111
JOE WRIGHT 10120 20.0 18.8 106 23.2 22.0 105
NORTH FRENCH CREEK 10130 30.1 25.1 120 29.5 22.0 134
OLD BATTLE 9920 34.0 28.8 118 37.6 30.9 122
SAGE CREEK BASIN 7850 12.6 10.1 125 13.3 10.8 123
SOUTH BRUSH CREEK 8440 11.3 11.4 99 15.1 14.5 104
TOWER 10500 47.5 40.7 117 44.3 34.5 128
WEBBER SPRINGS 9250 25.6 23.9 107 31.3 23.9 131
WILLOW CREEK PASS 9540 11.4 10.5 109 12.3 11.4 108
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Basin wide percent of average 113 121
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 23.3 20.7 113 20.1 19.3 104
CASPER MTN. 7850 15.1 12.3 123 15.6 12.4 126
DEADMAN HILL 10220 14.5 14.2 102 15.9 14.7 108
DEER PARK 9700 15.5 15.2 102 18.9 19.5 97
LAPRELE CREEK 8375 9.0 9.8 92 9.8 11.0 89
RENO HILL 8500 14.0 11.8 119 15.3 12.9 119
ROACH 9700 14.3 15.1 95 15.4 16.4 94
SAND LAKE 10050 29.4 28.2 104 28.4 21.2 134
SOUTH PASS 9040 14.9 15.2 98 15.8 16.4 96
WINDY PEAK 7900 6.8 7.0 97 9.1 9.3 98
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Basin wide percent of average 105 107
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 13.0 11.0 118 15.0 13.7 109
DIVIDE PEAK 8860 17.6 17.4 101 20.1 18.5 109
OLD BATTLE 9920 34.0 28.8 118 37.6 30.9 122
SANDSTONE RS 8150 14.7 14.0 105 19.8 16.9 117
WHISKEY PARK 8950 34.6 26.8 129 30.9 25.5 121
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Basin wide percent of average 116 117
UPPER GREEN RIVER
BIG SANDY OPENING 9080 13.7 13.1 105 13.8 12.2 113
BLIND BULL SUM 8900 25.6 25.3 101 19.3 20.4 95
EAST RIM DIVIDE 7930 10.0 11.9 84 10.5 11.0 95
ELKHART PARK G.S. 9400 12.1 12.1 100 13.0 11.9 109
GROS VENTRE SUMMIT 8750 10.9 12.7 86 12.0 11.7 103
KENDALL R.S. 7740 13.5 13.7 99 14.4 13.4 107
LOOMIS PARK 8240 17.6 16.0 110 17.9 15.9 113
NEW FORK LAKE 8340 9.9 10.4 95 9.5 10.3 92
SNIDER BASIN 8060 16.6 13.4 124 15.4 14.7 105
SPRING CREEK DIVIDE 9000 28.2 24.1 117 -M 24.2 *
TRIPLE PEAK 8500 27.4 22.8 120 28.0 22.4 125
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Basin wide percent of average 106 107
LOWER GREEN RIVER
HAMS FORK 7840 13.9 12.0 116 12.7 11.1 114
HEWINTA 9500 11.5 10.2 113 13.7 12.8 107
HICKERSON PARK 9100 4.3 6.4 67 6.9 6.9 100
HOLE-IN-ROCK 9150 6.3 6.3 100 7.2 6.5 111
INDIAN CREEK 9425 28.3 24.7 115 -M 22.9 *
KELLEY R.S. 8180 18.5 15.4 120 20.3 18.5 110
STEEL CREEK PARK 10100 14.3 14.0 102 15.4 14.2 108
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Basin wide percent of average 109 109
UPPER BEAR RIVER
BUG LAKE 7950 22.2 18.8 118 19.5 17.5 111
HAYDEN FORK 9100 18.9 14.7 129 22.1 18.7 118
KELLEY R.S. 8180 18.5 15.4 120 20.3 18.5 110
LILY LAKE 9050 13.4 11.7 115 14.7 15.6 94
MONTE CRISTO 8960 30.1 27.2 111 28.8 22.9 126
SALT RIVER SUMMIT 7600 15.0 13.2 114 17.4 17.0 102
TRIAL LAKE 9960 26.5 22.7 117 24.8 22.3 111
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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.