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: FEBRUARY 26 , 1998
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 14.6 15.4 95 16.7 19.7 85
COTTONWOOD CREEK 7600 17.6 18.1 97 18.8 21.8 86
GRANITE CREEK 6770 15.0 15.1 99 17.0 20.7 82
GRASSY LAKE 7265 26.6 29.6 90 27.4 31.8 86
GROS VENTRE SUMMIT 8775 8.9 12.6 71 10.0 13.9 72
LEWIS LAKE DIVIDE 7860 24.0 28.8 83 25.7 32.3 80
PHILLIPS BENCH 8200 22.5 23.7 95 22.6 25.6 88
SALT RIVER SUMMIT 7600 12.7 11.8 108 14.5 14.8 98
SNAKE RIVER STATION 6920 14.0 15.8 89 17.0 22.4 76
SPRING CREEK DIVIDE 9000 18.0 22.7 79 17.7 23.6 75
THUMB DIVIDE 7980 13.1 14.0 94 14.4 18.4 78
TOGWOTEE PASS 9580 20.8 20.4 102 19.3 24.2 80
TWO OCEAN PLATEAU 9360 22.2 21.8 102 22.2 27.1 82
WILLOW CREEK 8450 22.4 25.4 88 25.4 28.0 91
----- -----
Basin wide percent of average 92 83
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 15.9 19.5 82 13.7 14.8 93
BLACK BEAR 7950 31.4 31.0 101 -M 32.9 *
CANYON 7940 10.7 10.4 103 12.2 11.9 103
FISHER CREEK 9100 25.4 29.7 86 22.8 30.0 76
MADISON PLATEAU 7750 17.0 20.2 84 18.2 21.3 85
NORTHEAST ENTRANCE 7350 6.2 7.9 78 10.3 10.0 103
PARKER PEAK 9400 14.9 17.6 85 12.9 12.8 101
SYLVAN LAKE 8420 13.6 18.1 75 16.3 16.0 102
THUMB DIVIDE 7980 13.1 14.0 94 14.4 18.4 78
TWO OCEAN PLATEAU 9360 22.2 21.8 102 22.2 27.1 82
WHISKEY CREEK 6800 11.7 14.1 83 14.4 17.6 82
WHITE MILL 8700 19.0 20.8 91 17.5 23.3 75
WOLVERINE 7650 8.1 9.9 82 8.6 10.8 80
----- -----
Basin wide percent of average 89 86
WIND RIVER
BURROUGHS CREEK 8750 12.0 12.8 94 13.3 13.7 97
COLD SPRINGS 9630 8.0 6.9 116 8.7 8.2 106
DEER PARK 9700 -M -M * 15.7 -M *
HOBBS PARK 10100 10.9 11.9 92 9.8 11.0 89
LITTLE WARM 9620 8.2 9.0 91 10.2 10.6 96
SOUTH PASS 9040 11.3 13.7 82 12.5 13.5 93
ST. LAWRENCE ALT 8620 7.5 6.1 123 7.1 7.8 91
TOGWOTEE PASS 9580 20.8 20.4 102 19.3 24.2 80
TOWNSEND CREEK 8700 8.4 7.8 108 9.6 9.6 100
----- -----
Basin wide percent of average 98 92
BIGHORN BASIN
BALD MTN. 9375 16.1 16.7 96 14.1 13.8 102
BEAR TRAP MEADOW 7900 4.8 5.8 83 4.6 6.2 74
BLACKWATER 9780 16.9 17.6 96 15.1 14.9 101
BONE SPRINGS DIV 9350 -M 13.1 * 12.7 11.5 110
EVENING STAR 9200 18.8 22.1 85 20.4 18.6 110
GRAVE SPRINGS 8550 6.7 -M * 6.7 7.3 92
KIRWIN 9550 10.0 7.9 127 11.3 8.4 135
MARQUETTE 8760 10.1 6.4 158 10.3 7.0 147
MIDDLE POWDER 7760 -M 9.5 * 7.7 9.1 85
OWL CREEK 8975 5.0 3.6 139 4.7 4.8 98
POWDER RIVER PASS 9480 8.6 8.6 100 9.2 9.2 100
SHELL CREEK 9580 11.7 12.4 94 8.9 10.4 86
SYLVAN LAKE 8420 13.6 18.1 75 16.3 16.0 102
SYLVAN ROAD 8120 8.5 10.9 78 12.2 13.3 92
TIMBER CREEK 7950 6.7 4.8 140 8.1 5.0 162
YOUNTS PEAK 8350 12.5 14.5 86 12.3 13.6 90
----- -----
Basin wide percent of average 96 103
SHOSHONE RIVER
BLACKWATER 9780 16.9 17.6 96 15.1 14.9 101
EVENING STAR 9200 18.8 22.1 85 20.4 18.6 110
KIRWIN 9550 10.0 7.9 127 11.3 8.4 135
MARQUETTE 8760 10.1 6.4 158 10.3 7.0 147
SYLVAN LAKE 8420 13.6 18.1 75 16.3 16.0 102
SYLVAN ROAD 8120 8.5 10.9 78 12.2 13.3 92
YOUNTS PEAK 8350 12.5 14.5 86 12.3 13.6 90
----- -----
Basin wide percent of average 93 107
POWDER-TONGUE
BEAR TRAP MEADOW 7900 4.8 5.8 83 4.6 6.2 74
BONE SPRINGS DIV 9350 -M 13.1 * 12.7 11.5 110
BURGESS JUNCTION 7880 8.4 9.5 88 9.5 8.4 113
CLOUD PEAK RESERVOIR 9860 11.0 10.8 102 11.4 10.1 113
DOME LAKE 8880 8.3 11.0 75 10.9 10.2 107
GRAVE SPRINGS 8550 6.7 -M * 6.7 7.3 92
HANSEN SAWMILL 8760 6.4 5.6 114 7.3 5.9 124
MIDDLE POWDER 7760 -M 9.5 * 7.7 9.1 85
POWDER RIVER PASS 9480 8.6 8.6 100 9.2 9.2 100
SUCKER CREEK 8880 9.6 9.5 101 10.3 10.3 100
TIE CREEK 6870 6.1 -M * 8.9 8.1 110
----- -----
Basin wide percent of average 94 103
BELLE FOURCHE
BLIND PARK 6890 7.6 8.9 85 9.7 7.4 131
NORTH RAPID CREEK 6130 7.6 -M * 7.5 -M *
WARREN PEAK 6520 10.0 8.9 112 7.8 6.1 128
----- -----
Basin wide percent of average 99 130
UPPER N. PLATTE RIVER
COLUMBINE 9400 18.4 20.4 90 18.5 20.1 92
DIVIDE PEAK 8800 14.4 16.4 88 15.7 18.4 85
ELK RIVER 8700 13.7 16.3 84 14.1 15.2 93
JOE WRIGHT 10120 16.1 17.1 94 18.7 19.8 94
NORTH FRENCH CREEK 10100 22.8 19.9 115 21.6 18.5 117
OLD BATTLE 10000 24.2 25.6 95 27.1 24.0 113
SOUTH BRUSH CREEK 8400 8.7 9.1 96 9.2 12.7 72
TOWER 10500 37.1 36.5 102 32.2 29.4 110
WEBBER SPRINGS 9200 16.2 21.8 74 20.4 20.3 100
WILLOW CREEK PASS 9540 5.5 9.0 61 5.8 9.7 60
----- -----
Basin wide percent of average 92 97
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 14.6 19.5 75 15.5 15.1 103
CASPER MTN. 7900 11.1 12.0 93 10.5 10.6 99
DEADMAN HILL 10220 11.2 13.3 84 10.6 12.7 83
DEER PARK 9700 -M -M * 15.7 -M *
LAPRELE CREEK 8320 7.8 8.2 95 8.9 8.9 100
RENO HILL 8400 10.5 10.5 100 9.5 14.3 66
ROACH 9700 11.5 13.7 84 13.2 17.0 78
SAND LAKE 10080 19.5 26.2 74 17.6 16.1 109
SOUTH PASS 9040 11.3 13.7 82 12.5 13.5 93
WINDY PEAK 7840 6.0 6.0 100 6.9 7.0 99
----- -----
Basin wide percent of average 84 91
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 10.6 9.6 110 12.6 12.4 102
DIVIDE PEAK 8800 14.4 16.4 88 15.7 18.4 85
OLD BATTLE 10000 24.2 25.6 95 27.1 24.0 113
SANDSTONE RS 8150 12.5 11.9 105 15.5 15.2 102
WHISKEY PARK 8950 21.9 23.0 95 19.1 22.2 86
----- -----
Basin wide percent of average 97 98
UPPER GREEN RIVER
BIG SANDY OPENING 9100 9.1 11.8 77 8.4 14.2 59
BLIND BULL SUM 8650 19.3 23.8 81 15.1 20.6 73
EAST RIM DIVIDE 7930 8.6 11.7 74 8.7 13.3 65
ELKHART PARK G.S. 9400 9.3 11.2 83 10.0 14.0 71
GROS VENTRE SUMMIT 8775 8.9 12.6 71 10.0 13.9 72
KENDALL R.S. 7740 11.4 12.2 93 11.3 13.6 83
LOOMIS PARK 8240 11.1 14.6 76 12.3 16.5 75
NEW FORK LAKE 8340 8.1 9.7 84 8.1 12.7 64
SNIDER BASIN 8250 9.4 12.5 75 9.7 13.3 73
SPRING CREEK DIVIDE 9000 18.0 22.7 79 17.7 23.6 75
TRIPLE PEAK 8500 17.6 21.3 83 17.8 27.3 65
----- -----
Basin wide percent of average 80 71
LOWER GREEN RIVER
HAMS FORK 7840 9.3 10.3 90 8.4 11.7 72
HEWINTA 9500 9.1 8.2 111 11.9 10.0 119
HICKERSON PARK 9150 8.7 4.9 178 9.9 7.1 139
HOLE-IN-ROCK 9150 6.4 4.4 145 8.9 7.1 125
INDIAN CREEK 9425 19.6 22.4 88 15.3 22.1 69
KELLEY R.S. 8180 12.8 13.9 92 13.1 16.5 79
STEEL CREEK PARK 10100 11.9 12.2 98 14.1 10.1 140
----- -----
Basin wide percent of average 102 96
UPPER BEAR RIVER
BUG LAKE 7950 18.1 16.5 110 17.3 15.6 111
HAYDEN FORK 9400 11.3 13.3 85 16.2 14.8 109
KELLEY R.S. 8180 12.8 13.9 92 13.1 16.5 79
LILY LAKE 9050 11.3 10.4 109 13.5 11.5 117
MONTE CRISTO 8960 25.6 22.7 113 22.2 20.3 109
SALT RIVER SUMMIT 7600 12.7 11.8 108 14.5 14.8 98
TRIAL LAKE 9960 17.7 20.6 86 18.5 19.2 96
----- -----
Basin wide percent of average 100 102
-----------------------------------------------------------------------------
-M = Missing data
* = Data may not provide a valid measure of conditions.
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.