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 10 , 2008
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 -M 16.9 * 22.6 19.6 115
COTTONWOOD CREEK 7670 20.8 20.4 102 21.9 24.4 90
GRAND TARGHEE 9260 41.5 -M * 27.9 -M *
GRANITE CREEK 6770 15.1 17.3 87 20.4 18.3 111
GRASSY LAKE 7265 27.9 31.6 88 35.2 32.7 108
GROS VENTRE SUMMIT 8750 11.3 12.4 91 12.5 11.4 110
GUNSIGHT PASS 9820 10.6 -M * 12.4 -M *
LEWIS LAKE DIVIDE 7850 27.2 31.7 86 31.7 33.3 95
PHILLIPS BENCH 8200 27.2 25.6 106 29.8 26.1 114
SALT RIVER SUMMIT 7760 11.8 12.9 91 13.6 16.7 81
SNAKE RIVER STATION 6920 15.1 17.7 85 23.2 20.4 114
SPRING CREEK DIVIDE 9000 19.2 23.6 81 19.9 23.7 84
THUMB DIVIDE 7980 14.5 16.7 87 17.0 17.0 100
TOGWOTEE PASS 9580 23.5 22.0 107 25.6 21.9 117
TWO OCEAN PLATEAU 9240 30.9 24.8 125 23.3 24.8 94
WILLOW CREEK 8380 27.5 27.1 101 33.0 28.7 115
----- -----
Basin wide percent of average 96 103
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 22.1 21.3 104 20.9 18.1 115
BLACK BEAR 8170 40.3 35.5 114 -M 35.6 *
CANYON 7870 14.9 12.3 121 18.4 13.8 133
FISHER CREEK 9100 36.7 31.5 117 -M 32.5 *
MADISON PLATEAU 7750 26.1 22.5 116 28.8 23.5 123
NORTHEAST ENTRANCE 7350 8.2 10.4 79 11.7 11.4 103
PARKER PEAK 9400 22.4 19.4 115 -M 14.5 *
SYLVAN LAKE 8420 18.2 20.1 91 22.9 18.9 121
THUMB DIVIDE 7980 14.5 16.7 87 17.0 17.0 100
TWO OCEAN PLATEAU 9240 30.9 24.8 125 23.3 24.8 94
WHISKEY CREEK 6800 16.4 15.6 105 22.7 18.5 123
WHITE MILL 8700 23.7 21.8 109 -M 24.1 *
WOLVERINE 7650 9.0 11.2 80 11.5 11.7 98
----- -----
Basin wide percent of average 108 112
WIND RIVER
BURROUGHS CREEK 8750 13.4 13.4 100 16.2 14.5 112
COLD SPRINGS 9630 5.6 7.8 72 8.6 8.9 97
DEER PARK 9700 13.1 15.1 87 17.6 19.1 92
HOBBS PARK 10100 11.7 12.8 91 12.2 10.6 115
LITTLE WARM 9370 8.1 10.3 79 11.6 11.5 101
SOUTH PASS 9040 12.4 15.1 82 15.3 15.9 96
ST. LAWRENCE ALT 8620 6.1 6.4 95 7.6 7.4 103
TOGWOTEE PASS 9580 23.5 22.0 107 25.6 21.9 117
TOWNSEND CREEK 8700 7.7 7.5 103 10.8 9.5 114
----- -----
Basin wide percent of average 92 105
BIGHORN BASIN
BALD MTN. 9380 14.6 17.0 86 13.5 15.0 90
BEAR TRAP MEADOW 8200 7.4 4.8 154 7.6 6.8 112
BLACKWATER 9780 21.1 21.9 96 19.7 18.2 108
BONE SPRINGS DIV 9350 14.7 14.0 105 15.3 12.4 123
EVENING STAR 9200 25.3 26.7 95 -M 22.9 *
GRAVE SPRINGS 8550 8.3 7.9 105 9.0 8.4 107
KIRWIN 9550 10.3 9.9 104 12.6 9.7 130
MARQUETTE 8760 4.6 7.3 63 8.1 8.0 101
MIDDLE POWDER 7760 9.9 9.7 102 8.0 10.3 78
OWL CREEK 8975 4.7 4.5 104 5.8 4.7 123
POWDER RIVER PASS 9480 10.7 9.4 114 12.7 10.6 120
SHELL CREEK 9580 13.8 12.6 110 13.3 11.4 117
SYLVAN LAKE 8420 18.2 20.1 91 22.9 18.9 121
SYLVAN ROAD 7120 10.0 12.0 83 18.6 16.2 115
TIMBER CREEK 7950 3.5 4.6 76 6.9 5.8 119
YOUNTS PEAK 8350 14.5 15.5 94 15.5 14.4 108
----- -----
Basin wide percent of average 97 111
SHOSHONE RIVER
BLACKWATER 9780 21.1 21.9 96 19.7 18.2 108
EVENING STAR 9200 25.3 26.7 95 -M 22.9 *
KIRWIN 9550 10.3 9.9 104 12.6 9.7 130
MARQUETTE 8760 4.6 7.3 63 8.1 8.0 101
SYLVAN LAKE 8420 18.2 20.1 91 22.9 18.9 121
SYLVAN ROAD 7120 10.0 12.0 83 18.6 16.2 115
YOUNTS PEAK 8350 14.5 15.5 94 15.5 14.4 108
----- -----
Basin wide percent of average 92 114
POWDER-TONGUE
BEAR TRAP MEADOW 8200 7.4 4.8 154 7.6 6.8 112
BIG GOOSE 7990 7.1 8.3 86 10.0 7.1 141
BONE SPRINGS DIV 9350 14.7 14.0 105 15.3 12.4 123
BURGESS JUNCTION 7880 10.6 9.6 110 12.1 10.2 119
CLOUD PEAK RESERVOIR 9860 13.4 11.0 122 13.0 10.5 124
DOME LAKE 8880 9.1 10.2 89 12.6 10.9 116
GRAVE SPRINGS 8550 8.3 7.9 105 9.0 8.4 107
HANSEN SAWMILL 8360 5.4 5.6 96 7.6 6.8 112
MIDDLE POWDER 7760 9.9 9.7 102 8.0 10.3 78
POWDER RIVER PASS 9480 10.7 9.4 114 12.7 10.6 120
SUCKER CREEK 8880 12.2 9.8 124 14.1 11.3 125
TIE CREEK 6870 6.6 5.7 116 10.4 8.3 125
----- -----
Basin wide percent of average 109 117
BELLE FOURCHE
BLIND PARK 6890 6.8 7.9 86 9.6 9.8 98
COLE CANYON 5910 5.4 6.0 90 6.7 5.8 116
NORTH RAPID CREEK 6130 7.7 7.2 107 7.7 7.8 99
----- -----
Basin wide percent of average 94 103
UPPER N. PLATTE RIVER
COLUMBINE 9160 23.8 23.2 103 25.2 22.2 114
DIVIDE PEAK 8880 20.8 16.9 123 21.2 18.2 116
ELK RIVER 8700 22.8 17.2 133 21.4 17.2 124
JOE WRIGHT 10120 20.7 18.4 112 24.3 21.5 113
NORTH FRENCH CREEK 10130 27.2 24.4 111 26.6 21.5 124
OLD BATTLE 10000 29.1 28.2 103 33.3 30.4 110
SAGE CREEK BASIN 7850 16.3 9.8 166 16.6 10.5 158
SOUTH BRUSH CREEK 8440 12.4 11.0 113 15.6 14.1 111
TOWER 10500 38.1 39.9 95 30.8 34.0 91
WEBBER SPRINGS 9250 22.8 23.3 98 26.8 23.4 115
WILLOW CREEK PASS 9540 13.9 10.3 135 14.1 11.0 128
----- -----
Basin wide percent of average 111 114
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 18.1 20.3 89 19.0 18.7 102
CASPER MTN. 7900 11.6 12.1 96 12.6 11.9 106
DEADMAN HILL 10220 15.1 13.8 109 15.7 14.3 110
DEER PARK 9700 13.1 15.1 87 17.6 19.1 92
LAPRELE CREEK 8375 6.6 9.6 69 9.3 10.7 87
RENO HILL 8400 11.8 11.4 104 13.6 12.3 111
ROACH 9700 17.0 14.8 115 19.5 16.0 122
SAND LAKE 10050 24.2 27.4 88 24.2 20.6 117
SOUTH PASS 9040 12.4 15.1 82 15.3 15.9 96
WINDY PEAK 7900 7.0 6.7 104 8.5 9.0 94
----- -----
Basin wide percent of average 94 105
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 15.1 10.7 141 15.2 13.3 114
DIVIDE PEAK 8880 20.8 16.9 123 21.2 18.2 116
OLD BATTLE 10000 29.1 28.2 103 33.3 30.4 110
SANDSTONE RS 8150 15.9 13.6 117 19.6 16.7 117
WHISKEY PARK 8950 29.1 26.0 112 30.7 24.9 123
----- -----
Basin wide percent of average 115 116
UPPER GREEN RIVER
BIG SANDY OPENING 9080 11.2 12.9 87 11.3 12.0 94
BLIND BULL SUM 8650 21.2 24.8 85 15.8 20.0 79
EAST RIM DIVIDE 7930 7.5 11.8 64 9.6 10.8 89
ELKHART PARK G.S. 9400 9.6 11.9 81 10.5 11.6 91
GROS VENTRE SUMMIT 8750 11.3 12.4 91 12.5 11.4 110
GUNSIGHT PASS 9820 10.6 -M * 12.4 -M *
KENDALL R.S. 7740 10.0 13.4 75 11.8 13.3 89
LOOMIS PARK 8240 13.6 15.6 87 15.3 15.7 97
NEW FORK LAKE 8340 8.2 10.2 80 8.3 10.1 82
SNIDER BASIN 8060 11.3 13.2 86 12.3 14.5 85
SPRING CREEK DIVIDE 9000 19.2 23.6 81 19.9 23.7 84
TRIPLE PEAK 8500 20.9 22.3 94 24.1 22.1 109
----- -----
Basin wide percent of average 84 92
LOWER GREEN RIVER
HAMS FORK 7840 10.5 11.8 89 8.7 11.0 79
HEWINTA 9519 12.2 9.9 123 14.9 12.4 120
HICKERSON PARK 9145 6.6 6.2 106 8.8 6.7 131
HOLE-IN-ROCK 9150 5.6 6.1 92 8.8 6.2 142
INDIAN CREEK 9425 20.2 24.1 84 -M 22.4 *
KELLEY R.S. 8180 12.4 15.0 83 15.0 18.1 83
STEEL CREEK PARK 10200 13.3 13.6 98 16.5 13.7 120
----- -----
Basin wide percent of average 93 107
UPPER BEAR RIVER
BUG LAKE 7950 16.0 18.4 87 15.4 17.1 90
HAYDEN FORK 9212 17.6 14.3 123 21.2 18.2 116
KELLEY R.S. 8180 12.4 15.0 83 15.0 18.1 83
LILY LAKE 9156 13.4 11.5 117 16.0 15.1 106
MONTE CRISTO 8960 25.2 26.6 95 23.9 22.5 106
SALT RIVER SUMMIT 7760 11.8 12.9 91 13.6 16.7 81
TRIAL LAKE 9992 18.9 22.2 85 22.0 21.9 100
----- -----
Basin wide percent of average 95 98
-----------------------------------------------------------------------------
-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.
----------------------------------------------------------------------------
-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.