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: MARCH 6 , 2008
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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 15.9 16.5 96 22.5 19.2 117
COTTONWOOD CREEK 7670 20.8 19.5 107 22.0 23.8 92
GRAND TARGHEE 9260 41.4 -M * 27.8 -M *
GRANITE CREEK 6770 15.0 16.8 89 20.3 18.0 113
GRASSY LAKE 7265 27.8 30.7 91 35.1 32.0 110
GROS VENTRE SUMMIT 8750 11.3 12.0 94 12.4 11.1 112
GUNSIGHT PASS 9820 10.5 -M * 12.3 -M *
LEWIS LAKE DIVIDE 7850 27.2 30.8 88 31.7 32.6 97
PHILLIPS BENCH 8200 27.1 24.9 109 29.7 25.5 116
SALT RIVER SUMMIT 7760 11.7 12.6 93 13.6 16.3 83
SNAKE RIVER STATION 6920 15.2 17.2 88 22.8 20.0 114
SPRING CREEK DIVIDE 9000 19.3 23.0 84 19.7 23.2 85
THUMB DIVIDE 7980 14.5 16.1 90 17.0 16.6 102
TOGWOTEE PASS 9580 23.3 21.4 109 25.4 21.3 119
TWO OCEAN PLATEAU 9240 30.8 24.1 128 23.3 24.2 96
WILLOW CREEK 8380 27.5 26.3 105 32.7 28.0 117
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Basin wide percent of average 98 105
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 21.9 20.6 106 20.7 17.7 117
BLACK BEAR 8170 40.2 34.5 117 35.9 34.6 104
CANYON 7870 15.0 11.9 126 18.4 13.4 137
FISHER CREEK 9100 36.6 30.8 119 33.1 31.7 104
MADISON PLATEAU 7750 26.1 21.9 119 28.8 22.9 126
NORTHEAST ENTRANCE 7350 8.2 10.1 81 11.7 11.1 105
PARKER PEAK 9400 22.2 18.9 117 20.5 14.1 145
SYLVAN LAKE 8420 18.2 19.4 94 22.7 18.4 123
THUMB DIVIDE 7980 14.5 16.1 90 17.0 16.6 102
TWO OCEAN PLATEAU 9240 30.8 24.1 128 23.3 24.2 96
WHISKEY CREEK 6800 16.4 15.2 108 22.5 18.0 125
WHITE MILL 8700 23.6 21.2 111 -M 23.5 *
WOLVERINE 7650 8.9 11.0 81 11.3 11.5 98
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Basin wide percent of average 111 114
WIND RIVER
BURROUGHS CREEK 8750 13.3 13.1 102 16.1 14.1 114
COLD SPRINGS 9630 5.5 7.6 72 8.6 8.7 99
DEER PARK 9700 13.0 14.6 89 17.4 18.5 94
HOBBS PARK 10100 11.6 12.5 93 12.0 10.3 117
LITTLE WARM 9370 8.1 10.0 81 11.5 11.2 103
SOUTH PASS 9040 12.2 14.7 83 15.3 15.5 99
ST. LAWRENCE ALT 8620 6.0 6.3 95 7.5 7.2 104
TOGWOTEE PASS 9580 23.3 21.4 109 25.4 21.3 119
TOWNSEND CREEK 8700 7.5 7.3 103 10.9 9.2 118
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Basin wide percent of average 93 108
BIGHORN BASIN
BALD MTN. 9380 14.1 16.6 85 13.2 14.6 90
BEAR TRAP MEADOW 8200 7.2 4.6 157 7.6 6.6 115
BLACKWATER 9780 21.1 21.2 100 19.7 17.8 111
BONE SPRINGS DIV 9350 14.5 13.7 106 15.1 12.0 126
EVENING STAR 9200 25.3 26.0 97 27.3 22.4 122
GRAVE SPRINGS 8550 8.1 7.7 105 8.9 8.1 110
KIRWIN 9550 10.3 9.6 107 12.6 9.5 133
MARQUETTE 8760 4.6 7.1 65 8.1 7.8 104
MIDDLE POWDER 7760 9.8 9.4 104 8.0 9.9 81
OWL CREEK 8975 4.6 4.3 107 5.7 4.6 124
POWDER RIVER PASS 9480 10.4 9.1 114 12.3 10.3 119
SHELL CREEK 9580 13.4 12.3 109 13.1 11.1 118
SYLVAN LAKE 8420 18.2 19.4 94 22.7 18.4 123
SYLVAN ROAD 7120 10.0 11.9 84 18.6 15.9 117
TIMBER CREEK 7950 3.4 4.4 77 7.0 5.6 125
YOUNTS PEAK 8350 14.5 15.1 96 15.4 14.0 110
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Basin wide percent of average 98 114
SHOSHONE RIVER
BLACKWATER 9780 21.1 21.2 100 19.7 17.8 111
EVENING STAR 9200 25.3 26.0 97 27.3 22.4 122
KIRWIN 9550 10.3 9.6 107 12.6 9.5 133
MARQUETTE 8760 4.6 7.1 65 8.1 7.8 104
SYLVAN LAKE 8420 18.2 19.4 94 22.7 18.4 123
SYLVAN ROAD 7120 10.0 11.9 84 18.6 15.9 117
YOUNTS PEAK 8350 14.5 15.1 96 15.4 14.0 110
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Basin wide percent of average 94 118
POWDER-TONGUE
BEAR TRAP MEADOW 8200 7.2 4.6 157 7.6 6.6 115
BIG GOOSE 7990 6.8 8.0 85 9.7 7.0 139
BONE SPRINGS DIV 9350 14.5 13.7 106 15.1 12.0 126
BURGESS JUNCTION 7880 10.3 9.4 110 11.7 9.9 118
CLOUD PEAK RESERVOIR 9860 13.0 10.5 124 12.9 10.2 126
DOME LAKE 8880 8.8 9.9 89 12.2 10.6 115
GRAVE SPRINGS 8550 8.1 7.7 105 8.9 8.1 110
HANSEN SAWMILL 8360 5.3 5.4 98 7.5 6.5 115
MIDDLE POWDER 7760 9.8 9.4 104 8.0 9.9 81
POWDER RIVER PASS 9480 10.4 9.1 114 12.3 10.3 119
SUCKER CREEK 8880 11.7 9.6 122 13.4 10.9 123
TIE CREEK 6870 6.3 5.2 121 10.2 8.1 126
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Basin wide percent of average 109 118
BELLE FOURCHE
BLIND PARK 6890 6.4 7.7 83 9.2 9.6 96
COLE CANYON 5910 5.4 5.9 92 6.5 5.7 114
NORTH RAPID CREEK 6130 7.4 7.0 106 7.4 7.7 96
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Basin wide percent of average 93 100
UPPER N. PLATTE RIVER
COLUMBINE 9160 23.0 22.6 102 24.6 21.6 114
DIVIDE PEAK 8880 20.8 16.3 128 20.8 17.7 118
ELK RIVER 8700 22.4 16.7 134 21.0 16.7 126
JOE WRIGHT 10120 20.3 17.9 113 24.1 20.9 115
NORTH FRENCH CREEK 10130 26.6 23.6 113 25.9 21.0 123
OLD BATTLE 10000 28.9 27.4 105 33.0 29.6 111
SAGE CREEK BASIN 7850 16.2 9.5 171 16.5 10.3 160
SOUTH BRUSH CREEK 8440 12.1 10.6 114 15.1 13.8 109
TOWER 10500 -M 38.8 * -M 33.1 *
WEBBER SPRINGS 9250 22.8 22.4 102 26.6 22.8 117
WILLOW CREEK PASS 9540 13.8 10.0 138 14.0 10.7 131
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Basin wide percent of average 117 120
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 17.8 19.7 90 18.7 18.2 103
CASPER MTN. 7900 11.5 11.7 98 12.5 11.5 109
DEADMAN HILL 10220 15.0 13.4 112 15.3 13.9 110
DEER PARK 9700 13.0 14.6 89 17.4 18.5 94
LAPRELE CREEK 8375 6.3 9.3 68 9.1 10.4 87
RENO HILL 8400 11.7 10.9 107 13.3 12.0 111
ROACH 9700 16.9 14.4 117 19.4 15.5 125
SAND LAKE 10050 24.0 26.4 91 23.9 20.0 119
SOUTH PASS 9040 12.2 14.7 83 15.3 15.5 99
WINDY PEAK 7900 6.9 6.4 108 8.4 8.8 95
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Basin wide percent of average 96 106
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 15.0 10.2 147 15.2 12.8 119
DIVIDE PEAK 8880 20.8 16.3 128 20.8 17.7 118
OLD BATTLE 10000 28.9 27.4 105 33.0 29.6 111
SANDSTONE RS 8150 15.8 13.1 121 19.5 16.2 120
WHISKEY PARK 8950 28.8 25.0 115 30.4 24.3 125
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Basin wide percent of average 119 118
UPPER GREEN RIVER
BIG SANDY OPENING 9080 11.1 12.6 88 11.1 11.7 95
BLIND BULL SUM 8650 21.2 24.0 88 15.8 19.6 81
EAST RIM DIVIDE 7930 7.4 11.5 64 9.5 10.6 90
ELKHART PARK G.S. 9400 9.5 11.5 83 10.1 11.3 89
GROS VENTRE SUMMIT 8750 11.3 12.0 94 12.4 11.1 112
GUNSIGHT PASS 9820 10.5 -M * 12.3 -M *
KENDALL R.S. 7740 9.9 13.0 76 11.6 13.0 89
LOOMIS PARK 8240 13.5 15.1 89 15.0 15.3 98
NEW FORK LAKE 8340 8.1 9.9 82 8.1 9.9 82
SNIDER BASIN 8060 11.2 12.9 87 12.2 14.2 86
SPRING CREEK DIVIDE 9000 19.3 23.0 84 19.7 23.2 85
TRIPLE PEAK 8500 20.9 21.6 97 24.0 21.5 112
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Basin wide percent of average 86 93
LOWER GREEN RIVER
HAMS FORK 7840 10.4 11.5 90 8.6 10.7 80
HEWINTA 9519 11.7 9.6 122 14.5 12.1 120
HICKERSON PARK 9145 6.3 6.1 103 8.5 6.5 131
HOLE-IN-ROCK 9150 5.4 5.9 92 8.7 6.0 145
INDIAN CREEK 9425 20.0 23.3 86 -M 21.8 *
KELLEY R.S. 8180 12.4 14.6 85 14.9 17.7 84
STEEL CREEK PARK 10200 12.9 13.2 98 16.3 13.4 122
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Basin wide percent of average 94 108
UPPER BEAR RIVER
BUG LAKE 7950 15.9 17.8 89 15.2 16.7 91
HAYDEN FORK 9212 17.2 13.8 125 20.9 17.7 118
KELLEY R.S. 8180 12.4 14.6 85 14.9 17.7 84
LILY LAKE 9156 13.1 11.2 117 15.8 14.8 107
MONTE CRISTO 8960 25.1 25.8 97 23.7 21.9 108
SALT RIVER SUMMIT 7760 11.7 12.6 93 13.6 16.3 83
TRIAL LAKE 9992 18.6 21.5 87 21.7 21.3 102
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Basin wide percent of average 97 100
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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 1961-90.
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.