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: JANUARY 19 , 2004
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 12.9 10.9 118 13.8 13.0 106
COTTONWOOD CREEK 7600 11.9 12.4 96 12.9 16.5 78
GRANITE CREEK 6770 11.6 10.4 112 12.4 11.9 104
GRASSY LAKE 7265 22.7 19.6 116 22.4 21.8 103
GROS VENTRE SUMMIT 8775 7.2 8.5 85 6.7 7.7 87
LEWIS LAKE DIVIDE 7860 21.2 19.6 108 21.8 21.8 100
PHILLIPS BENCH 8200 16.2 16.1 101 16.7 17.0 98
SALT RIVER SUMMIT 7600 8.1 7.6 107 9.1 11.1 82
SNAKE RIVER STATION 6920 13.8 10.5 131 14.8 13.7 108
SPRING CREEK DIVIDE 9000 12.8 15.3 84 12.5 16.1 78
THUMB DIVIDE 7980 13.0 10.0 130 12.2 11.2 109
TOGWOTEE PASS 9580 12.9 14.8 87 13.0 14.8 88
TWO OCEAN PLATEAU 9360 17.6 16.7 105 15.8 16.4 96
WILLOW CREEK 8450 16.8 17.8 94 18.2 19.2 95
----- -----
Basin wide percent of average 104 95
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 11.9 14.4 83 11.9 12.3 97
BLACK BEAR 8170 26.5 22.4 118 24.3 22.5 108
CANYON 8090 7.5 7.8 96 8.5 9.5 89
FISHER CREEK 9100 18.7 21.0 89 18.7 21.5 87
MADISON PLATEAU 7750 16.0 14.3 112 15.6 15.4 101
NORTHEAST ENTRANCE 7350 4.2 6.7 63 6.8 7.9 86
PARKER PEAK 9400 11.3 13.1 86 9.1 9.9 92
SYLVAN LAKE 8420 10.2 13.3 77 12.5 13.2 95
THUMB DIVIDE 7980 13.0 10.0 130 12.2 11.2 109
TWO OCEAN PLATEAU 9360 17.6 16.7 105 15.8 16.4 96
WHISKEY CREEK 6800 11.7 9.6 122 13.5 12.2 111
WHITE MILL 8700 10.6 14.3 74 12.4 16.0 78
WOLVERINE 7650 5.9 7.5 79 6.0 8.3 72
----- -----
Basin wide percent of average 96 95
WIND RIVER
BURROUGHS CREEK 8750 7.5 9.0 83 8.5 9.9 86
COLD SPRINGS 9630 3.7 5.5 67 3.8 6.5 58
DEER PARK 9700 10.4 9.7 107 12.2 13.0 94
HOBBS PARK 10100 6.9 9.0 77 6.2 7.4 84
LITTLE WARM 9370 5.0 6.9 72 5.8 8.1 72
SOUTH PASS 9040 10.7 10.1 106 10.6 10.9 97
ST. LAWRENCE ALT 8620 2.9 4.4 66 3.4 5.2 65
TOGWOTEE PASS 9580 12.9 14.8 87 13.0 14.8 88
TOWNSEND CREEK 8700 4.9 5.1 96 5.7 6.8 84
----- -----
Basin wide percent of average 87 84
BIGHORN BASIN
BALD MTN. 9380 9.2 12.1 76 8.2 10.4 79
BEAR TRAP MEADOW 8200 4.0 3.1 129 4.0 5.1 78
BLACKWATER 9780 14.2 14.7 97 12.6 12.8 98
BONE SPRINGS DIV 9350 7.8 9.6 81 8.4 8.6 98
EVENING STAR 9200 12.9 17.5 74 15.7 15.7 100
GRAVE SPRINGS 8550 6.0 5.1 118 5.7 5.8 98
KIRWIN 9550 4.0 7.1 56 4.9 6.9 71
MARQUETTE 8760 4.4 5.5 80 4.7 5.8 81
MIDDLE POWDER 7760 6.5 6.5 100 5.3 7.7 69
OWL CREEK 8975 2.2 3.1 71 2.3 3.4 68
POWDER RIVER PASS 9480 6.3 6.4 98 7.0 7.3 96
SHELL CREEK 9580 8.4 8.9 94 8.1 8.2 99
SYLVAN LAKE 8420 10.2 13.3 77 12.5 13.2 95
SYLVAN ROAD 7120 7.5 7.9 95 10.0 12.0 83
TIMBER CREEK 7950 2.0 3.4 59 2.7 4.2 64
YOUNTS PEAK 8350 6.7 10.3 65 8.0 10.1 79
----- -----
Basin wide percent of average 83 88
SHOSHONE RIVER
BLACKWATER 9780 14.2 14.7 97 12.6 12.8 98
EVENING STAR 9200 12.9 17.5 74 15.7 15.7 100
KIRWIN 9550 4.0 7.1 56 4.9 6.9 71
MARQUETTE 8760 4.4 5.5 80 4.7 5.8 81
SYLVAN LAKE 8420 10.2 13.3 77 12.5 13.2 95
SYLVAN ROAD 7120 7.5 7.9 95 10.0 12.0 83
YOUNTS PEAK 8350 6.7 10.3 65 8.0 10.1 79
----- -----
Basin wide percent of average 79 89
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.0 3.1 129 4.0 5.1 78
BIG GOOSE 7990 4.4 5.4 81 5.0 5.2 96
BONE SPRINGS DIV 9350 7.8 9.6 81 8.4 8.6 98
BURGESS JUNCTION 7880 5.4 6.6 82 5.6 7.1 79
CLOUD PEAK RESERVOIR 9860 7.4 7.2 103 6.4 7.4 86
DOME LAKE 8880 -M 7.2 * -M 7.9 *
GRAVE SPRINGS 8550 6.0 5.1 118 5.7 5.8 98
HANSEN SAWMILL 8360 4.0 3.8 105 3.8 4.9 78
MIDDLE POWDER 7760 6.5 6.5 100 5.3 7.7 69
POWDER RIVER PASS 9480 6.3 6.4 98 7.0 7.3 96
SUCKER CREEK 8880 5.5 6.4 86 6.7 7.9 85
TIE CREEK 6870 3.3 3.6 92 4.6 6.1 75
----- -----
Basin wide percent of average 95 85
BELLE FOURCHE
BLIND PARK 6890 3.3 4.7 70 5.4 7.1 76
COLE CANYON 5910 2.6 3.6 72 3.8 -M *
NORTH RAPID CREEK 6130 2.9 4.2 69 4.2 5.9 71
----- -----
Basin wide percent of average 70 74
UPPER N. PLATTE RIVER
COLUMBINE 9400 12.9 13.7 94 14.6 14.5 101
DIVIDE PEAK 8800 11.2 11.5 97 12.0 12.1 99
ELK RIVER 8700 11.0 10.1 109 12.5 11.1 113
JOE WRIGHT 10120 8.1 12.1 67 10.3 14.4 72
NORTH FRENCH CREEK 10100 12.5 16.4 76 11.7 14.6 80
OLD BATTLE 10000 19.4 17.7 110 20.7 19.7 105
SAGE CREEK BASIN 7850 8.4 6.7 125 9.6 7.0 137
SOUTH BRUSH CREEK 8400 5.1 6.4 80 5.9 9.6 61
TOWER 10500 23.0 26.0 88 24.7 22.3 111
WEBBER SPRINGS 9200 14.8 14.1 105 16.2 15.9 102
WILLOW CREEK PASS 9540 5.6 6.7 84 5.0 7.5 67
----- -----
Basin wide percent of average 93 96
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 9.6 13.5 71 9.1 12.5 73
CASPER MTN. 7900 5.7 8.2 70 5.0 8.2 61
DEADMAN HILL 10220 6.2 9.4 66 8.9 9.5 94
DEER PARK 9700 10.4 9.7 107 12.2 13.0 94
LAPRELE CREEK 8320 5.2 6.5 80 5.7 7.3 78
RENO HILL 8400 6.9 7.7 90 6.4 8.4 76
ROACH 9700 9.7 9.5 102 10.5 10.4 101
SAND LAKE 10080 12.8 17.8 72 12.4 14.1 88
SOUTH PASS 9040 10.7 10.1 106 10.6 10.9 97
WINDY PEAK 7840 3.2 4.0 80 4.0 6.4 62
----- -----
Basin wide percent of average 83 84
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.2 6.3 146 9.2 8.7 106
DIVIDE PEAK 8800 11.2 11.5 97 12.0 12.1 99
OLD BATTLE 10000 19.4 17.7 110 20.7 19.7 105
SANDSTONE RS 8150 6.9 7.9 87 12.6 11.0 115
WHISKEY PARK 8950 15.3 15.4 99 15.8 16.8 94
----- -----
Basin wide percent of average 105 103
UPPER GREEN RIVER
BIG SANDY OPENING 9100 8.5 8.4 101 8.2 8.0 102
BLIND BULL SUM 8650 14.2 16.3 87 11.5 13.6 85
EAST RIM DIVIDE 7930 6.8 7.4 92 7.1 7.1 100
ELKHART PARK G.S. 9400 7.6 7.7 99 8.0 8.0 100
GROS VENTRE SUMMIT 8775 7.2 8.5 85 6.7 7.7 87
KENDALL R.S. 7740 8.2 8.6 95 8.8 8.5 104
LOOMIS PARK 8240 10.3 9.9 104 10.6 10.3 103
NEW FORK LAKE 8340 6.6 6.7 99 6.2 7.1 87
SNIDER BASIN 8250 8.0 8.6 93 8.1 9.8 83
SPRING CREEK DIVIDE 9000 12.8 15.3 84 12.5 16.1 78
TRIPLE PEAK 8500 12.9 14.7 88 13.8 14.1 98
----- -----
Basin wide percent of average 92 92
LOWER GREEN RIVER
HAMS FORK 7840 6.6 7.2 92 6.2 7.3 85
HEWINTA 9500 4.3 5.6 77 6.7 8.3 81
HICKERSON PARK 9150 3.0 3.8 79 5.1 4.8 106
HOLE-IN-ROCK 9150 3.8 3.5 109 4.1 4.4 93
INDIAN CREEK 9425 13.7 15.5 88 12.0 14.9 81
KELLEY R.S. 8180 9.1 9.4 97 10.1 12.3 82
STEEL CREEK PARK 10100 6.5 8.2 79 7.0 9.1 77
----- -----
Basin wide percent of average 88 84
UPPER BEAR RIVER
BUG LAKE 7950 11.5 11.1 104 11.4 11.3 101
HAYDEN FORK 9400 6.6 8.3 80 10.2 12.1 84
KELLEY R.S. 8180 9.1 9.4 97 10.1 12.3 82
LILY LAKE 9050 5.6 7.1 79 7.8 10.3 76
MONTE CRISTO 8960 14.5 15.1 96 14.9 14.8 101
SALT RIVER SUMMIT 7600 8.1 7.6 107 9.1 11.1 82
TRIAL LAKE 9960 12.3 13.5 91 14.0 13.9 101
----- -----
Basin wide percent of average 94 90
-----------------------------------------------------------------------------
-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.
----------------------------------------------------------------------------
-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.