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 23 , 2006
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 20.6 17.7 116 24.6 20.8 118
COTTONWOOD CREEK 7600 27.4 22.7 121 29.7 26.4 112
GRANITE CREEK 6770 20.6 18.2 113 22.6 19.3 117
GRASSY LAKE 7265 37.2 34.4 108 40.6 34.8 117
GROS VENTRE SUMMIT 8750 11.5 13.6 85 12.2 12.4 98
LEWIS LAKE DIVIDE 7850 39.9 34.2 117 38.3 35.5 108
PHILLIPS BENCH 8200 31.8 27.8 114 32.1 28.0 115
SALT RIVER SUMMIT 7600 15.7 14.0 112 18.3 18.1 101
SNAKE RIVER STATION 6920 21.2 18.7 113 25.7 21.6 119
SPRING CREEK DIVIDE 9000 29.4 25.6 115 -M 25.6 *
THUMB DIVIDE 7980 18.5 18.2 102 18.4 18.2 101
TOGWOTEE PASS 9580 23.7 23.9 99 24.7 23.7 104
TWO OCEAN PLATEAU 9240 33.8 26.9 126 25.0 26.7 94
WILLOW CREEK 8450 33.6 29.2 115 37.8 31.0 122
----- -----
Basin wide percent of average 112 111
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 20.6 22.7 91 18.3 19.4 94
BLACK BEAR 8170 46.7 38.0 123 -M 38.7 *
CANYON 8090 14.3 13.3 108 16.8 14.8 114
FISHER CREEK 9100 37.9 33.8 112 35.8 35.0 102
MADISON PLATEAU 7750 26.0 24.3 107 -M 25.6 *
NORTHEAST ENTRANCE 7350 9.9 10.9 91 12.0 12.2 98
PARKER PEAK 9400 17.8 20.8 86 16.0 15.6 103
SYLVAN LAKE 8420 17.2 21.6 80 21.3 20.2 105
THUMB DIVIDE 7980 18.5 18.2 102 18.4 18.2 101
TWO OCEAN PLATEAU 9240 33.8 26.9 126 25.0 26.7 94
WHISKEY CREEK 6800 15.7 16.6 95 22.4 20.1 111
WHITE MILL 8700 24.9 23.4 106 22.4 26.0 86
WOLVERINE 7650 8.8 11.4 77 8.7 12.4 70
----- -----
Basin wide percent of average 104 98
WIND RIVER
BURROUGHS CREEK 8750 13.4 14.1 95 15.5 15.6 99
COLD SPRINGS 9630 5.4 8.5 64 8.1 10.0 81
DEER PARK 9700 16.3 16.1 101 19.6 20.9 94
HOBBS PARK 10100 10.6 14.0 76 11.0 12.0 92
LITTLE WARM 9370 8.5 11.3 75 11.2 12.7 88
SOUTH PASS 9040 15.5 16.0 97 16.3 17.6 93
ST. LAWRENCE ALT 8620 3.8 7.0 54 6.5 8.3 78
TOGWOTEE PASS 9580 23.7 23.9 99 24.7 23.7 104
TOWNSEND CREEK 8700 6.3 8.2 77 9.0 10.9 83
----- -----
Basin wide percent of average 87 93
BIGHORN BASIN
BALD MTN. 9380 14.4 18.7 77 11.5 16.5 70
BEAR TRAP MEADOW 8200 5.6 5.0 112 7.4 7.7 96
BLACKWATER 9780 21.3 23.5 91 19.3 19.7 98
BONE SPRINGS DIV 9350 13.2 15.3 86 13.2 13.8 96
EVENING STAR 9200 23.7 28.6 83 26.4 24.4 108
GRAVE SPRINGS 8550 8.9 8.8 101 10.7 9.1 118
KIRWIN 9550 9.4 10.8 87 10.2 10.7 95
MARQUETTE 8760 2.3 8.3 28 7.0 9.1 77
MIDDLE POWDER 7760 11.2 10.9 103 9.4 11.6 81
OWL CREEK 8975 3.1 5.1 61 5.6 5.5 102
POWDER RIVER PASS 9480 9.1 10.3 88 10.6 11.7 91
SHELL CREEK 9580 12.9 13.9 93 12.0 12.6 95
SYLVAN LAKE 8420 17.2 21.6 80 21.3 20.2 105
SYLVAN ROAD 7120 10.3 12.5 82 15.9 17.2 92
TIMBER CREEK 7950 2.3 5.3 43 4.9 6.8 72
YOUNTS PEAK 8350 13.7 16.5 83 15.7 15.5 101
----- -----
Basin wide percent of average 83 95
SHOSHONE RIVER
BLACKWATER 9780 21.3 23.5 91 19.3 19.7 98
EVENING STAR 9200 23.7 28.6 83 26.4 24.4 108
KIRWIN 9550 9.4 10.8 87 10.2 10.7 95
MARQUETTE 8760 2.3 8.3 28 7.0 9.1 77
SYLVAN LAKE 8420 17.2 21.6 80 21.3 20.2 105
SYLVAN ROAD 7120 10.3 12.5 82 15.9 17.2 92
YOUNTS PEAK 8350 13.7 16.5 83 15.7 15.5 101
----- -----
Basin wide percent of average 80 99
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.6 5.0 112 7.4 7.7 96
BIG GOOSE 7990 6.0 9.6 62 8.1 8.0 101
BONE SPRINGS DIV 9350 13.2 15.3 86 13.2 13.8 96
BURGESS JUNCTION 7880 8.9 10.8 82 10.3 11.4 90
CLOUD PEAK RESERVOIR 9860 12.1 12.4 98 10.9 12.0 91
DOME LAKE 8880 9.7 11.5 84 10.5 12.3 85
GRAVE SPRINGS 8550 8.9 8.8 101 10.7 9.1 118
HANSEN SAWMILL 8360 4.4 6.1 72 6.5 7.6 86
MIDDLE POWDER 7760 11.2 10.9 103 9.4 11.6 81
POWDER RIVER PASS 9480 9.1 10.3 88 10.6 11.7 91
SUCKER CREEK 8880 9.5 10.9 87 12.4 12.7 98
TIE CREEK 6870 4.8 5.9 81 9.2 9.3 99
----- -----
Basin wide percent of average 88 94
BELLE FOURCHE
BLIND PARK 6890 7.6 8.5 89 10.2 10.6 96
COLE CANYON 5910 5.1 5.9 86 9.1 -M *
NORTH RAPID CREEK 6130 6.5 7.9 82 8.5 8.3 102
----- -----
Basin wide percent of average 86 99
UPPER N. PLATTE RIVER
COLUMBINE 9160 29.9 24.4 123 31.8 24.0 132
DIVIDE PEAK 8860 18.4 18.8 98 20.8 19.7 106
ELK RIVER 8700 19.8 18.6 106 20.1 18.7 107
JOE WRIGHT 10120 21.1 20.2 104 24.9 23.5 106
NORTH FRENCH CREEK 10130 31.1 27.4 114 30.6 23.5 130
OLD BATTLE 9920 35.6 30.7 116 39.7 33.0 120
SAGE CREEK BASIN 7850 13.2 10.9 121 13.7 11.5 119
SOUTH BRUSH CREEK 8440 12.1 12.4 98 15.8 15.5 102
TOWER 10500 49.2 43.4 113 46.1 36.7 126
WEBBER SPRINGS 9250 26.9 25.3 106 32.7 25.4 129
WILLOW CREEK PASS 9540 11.9 11.3 105 13.1 12.2 107
----- -----
Basin wide percent of average 111 119
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 24.2 22.4 108 21.1 20.8 101
CASPER MTN. 7850 15.5 13.5 115 16.0 13.4 119
DEADMAN HILL 10220 15.7 15.3 103 17.2 15.9 108
DEER PARK 9700 16.3 16.1 101 19.6 20.9 94
LAPRELE CREEK 8375 10.1 10.5 96 10.9 11.8 92
RENO HILL 8500 14.7 13.1 112 16.0 14.0 114
ROACH 9700 15.8 16.2 98 16.5 17.6 94
SAND LAKE 10050 30.6 30.6 100 29.4 22.8 129
SOUTH PASS 9040 15.5 16.0 97 16.3 17.6 93
WINDY PEAK 7900 7.7 7.6 101 9.7 10.0 97
----- -----
Basin wide percent of average 103 105
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 14.0 11.1 126 15.5 14.9 104
DIVIDE PEAK 8860 18.4 18.8 98 20.8 19.7 106
OLD BATTLE 9920 35.6 30.7 116 39.7 33.0 120
SANDSTONE RS 8150 15.7 14.5 108 20.5 17.9 115
WHISKEY PARK 8950 36.5 28.8 127 -M 27.2 *
----- -----
Basin wide percent of average 116 113
UPPER GREEN RIVER
BIG SANDY OPENING 9080 14.2 14.0 101 14.4 12.9 112
BLIND BULL SUM 8900 27.0 26.9 100 20.4 21.5 95
EAST RIM DIVIDE 7930 10.6 12.7 83 10.8 11.6 93
ELKHART PARK G.S. 9400 12.8 12.9 99 13.7 12.7 108
GROS VENTRE SUMMIT 8750 11.5 13.6 85 12.2 12.4 98
KENDALL R.S. 7740 14.1 14.2 99 14.6 14.1 104
LOOMIS PARK 8240 18.2 16.8 108 18.4 16.8 110
NEW FORK LAKE 8340 10.2 10.9 94 9.8 10.9 90
SNIDER BASIN 8060 17.5 14.1 124 16.4 15.5 106
SPRING CREEK DIVIDE 9000 29.4 25.6 115 -M 25.6 *
TRIPLE PEAK 8500 29.0 24.1 120 29.6 23.8 124
----- -----
Basin wide percent of average 105 105
LOWER GREEN RIVER
HAMS FORK 7840 15.1 12.1 125 13.5 11.7 115
HEWINTA 9500 12.6 11.2 112 14.4 13.8 104
HICKERSON PARK 9100 4.8 7.1 68 7.5 7.5 100
HOLE-IN-ROCK 9150 7.1 6.8 104 7.9 7.0 113
INDIAN CREEK 9425 29.9 26.6 112 -M 24.4 *
KELLEY R.S. 8180 19.2 16.3 118 21.2 19.6 108
STEEL CREEK PARK 10100 15.1 15.0 101 16.5 15.3 108
----- -----
Basin wide percent of average 109 108
UPPER BEAR RIVER
BUG LAKE 7950 24.5 20.1 122 21.5 18.5 116
HAYDEN FORK 9100 20.7 15.7 132 23.5 20.0 118
KELLEY R.S. 8180 19.2 16.3 118 21.2 19.6 108
LILY LAKE 9050 14.4 12.7 113 15.6 16.6 94
MONTE CRISTO 8960 33.0 28.8 115 28.9 24.4 118
SALT RIVER SUMMIT 7600 15.7 14.0 112 18.3 18.1 101
TRIAL LAKE 9960 28.2 24.1 117 25.2 23.8 106
----- -----
Basin wide percent of average 118 109
-----------------------------------------------------------------------------
-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.