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: JULY 12 , 1999
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 .0 .0 100* 34.5 30.2 115
COTTONWOOD CREEK 7600 .0 .0 100* 40.8 33.5 122
GRANITE CREEK 6770 .2 .0 * 31.9 32.8 97
GRASSY LAKE 7265 .0 .0 100* 55.9 49.8 113
GROS VENTRE SUMMIT 8775 .0 .0 100* 23.4 22.2 106
LEWIS LAKE DIVIDE 7860 .0 .0 100* 51.5 50.7 102
PHILLIPS BENCH 8200 .3 .0 * 41.8 39.9 105
SALT RIVER SUMMIT 7600 .0 .0 100* 26.2 23.5 112
SNAKE RIVER STATION 6920 .0 .0 100* 35.7 35.0 102
SPRING CREEK DIVIDE 9000 .0 .0 100* 39.8 36.2 111
THUMB DIVIDE 7980 .0 .0 100* 31.9 28.2 113
TOGWOTEE PASS 9580 .0 .0 100* 39.4 38.0 104
TWO OCEAN PLATEAU 9360 1.2 .0 * 43.3 41.5 105
WILLOW CREEK 8450 .0 .0 100* 54.4 43.0 127
----- -----
Basin wide percent of average * 110
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .0 .5 0* 32.3 28.4 115
BLACK BEAR 7950 .3 .3 100* 65.5 55.3 119
CANYON 7940 .0 .0 100* 27.0 22.2 122
FISHER CREEK 9100 1.0 1.4 77* 50.0 51.9 97
MADISON PLATEAU 7750 -M .0 * 42.8 37.0 116
NORTHEAST ENTRANCE 7350 .0 .0 100* 21.4 19.9 109
PARKER PEAK 9400 .3 1.4 15* -M 25.7 *
SYLVAN LAKE 8420 -M .0 * -M 30.5 *
THUMB DIVIDE 7980 .0 .0 100* 31.9 28.2 113
TWO OCEAN PLATEAU 9360 1.2 .0 * 43.3 41.5 105
WHISKEY CREEK 6800 .0 .0 100* 34.9 31.4 112
WHITE MILL 8700 3.9 .5 780* 28.9 40.8 71
WOLVERINE 7650 .0 .0 100* 18.7 21.4 88
----- -----
Basin wide percent of average 139* 105
WIND RIVER
BURROUGHS CREEK 8750 .2 .0 * 27.5 24.9 111
COLD SPRINGS 9630 .0 .0 100* 26.9 18.9 144
DEER PARK 9700 .2 -M * 38.3 -M *
HOBBS PARK 10100 .0 .2 0* 32.3 23.9 136
LITTLE WARM 9620 .2 .0 * 28.5 22.0 130
SOUTH PASS 9040 -M .0 * 34.3 27.0 127
ST. LAWRENCE ALT 8620 .3 .0 * 24.0 17.4 138
TOGWOTEE PASS 9580 .0 .0 100* 39.4 38.0 104
TOWNSEND CREEK 8700 .2 .0 * 28.9 21.4 136
----- -----
Basin wide percent of average 0* 126
BIGHORN BASIN
BALD MTN. 9375 .0 .3 0* 29.9 28.4 105
BEAR TRAP MEADOW 7900 .0 .0 100* 21.5 16.9 128
BLACKWATER 9780 .5 .7 58* 35.8 29.0 124
BONE SPRINGS DIV 9350 .0 .0 100* 29.9 26.0 116
EVENING STAR 9200 .0 1.7 0* 46.8 35.5 132
GRAVE SPRINGS 8550 .2 .0 * 21.7 19.9 110
KIRWIN 9550 .0 .0 100* 25.2 19.7 128
MARQUETTE 8760 .0 .0 100* 25.4 20.7 123
MIDDLE POWDER 7760 .0 .0 100* 28.4 21.7 131
OWL CREEK 8975 .2 .0 * 20.2 13.4 152
POWDER RIVER PASS 9480 .0 .0 100* 26.5 21.5 124
SHELL CREEK 9580 .0 .0 100* 26.2 23.9 110
SYLVAN LAKE 8420 -M .0 * -M 30.5 *
SYLVAN ROAD 8120 -M .0 * -M 25.9 *
TIMBER CREEK 7950 .0 .0 100* 20.7 16.7 125
YOUNTS PEAK 8350 .2 .0 * 27.2 25.7 106
----- -----
Basin wide percent of average 16* 121
SHOSHONE RIVER
BLACKWATER 9780 .5 .7 58* 35.8 29.0 124
EVENING STAR 9200 .0 1.7 0* 46.8 35.5 132
KIRWIN 9550 .0 .0 100* 25.2 19.7 128
MARQUETTE 8760 .0 .0 100* 25.4 20.7 123
SYLVAN LAKE 8420 -M .0 * -M 30.5 *
SYLVAN ROAD 8120 -M .0 * -M 25.9 *
YOUNTS PEAK 8350 .2 .0 * 27.2 25.7 106
----- -----
Basin wide percent of average 17* 123
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 21.5 16.9 128
BIG GOOSE 7990 .0 -M * 22.7 -M *
BONE SPRINGS DIV 9350 .0 .0 100* 29.9 26.0 116
BURGESS JUNCTION 7880 .2 .0 * 21.7 20.9 104
CLOUD PEAK RESERVOIR 9860 .0 .0 100* 28.9 25.2 115
DOME LAKE 8880 .0 .0 100* 20.9 23.4 90
GRAVE SPRINGS 8550 .2 .0 * 21.7 19.9 110
HANSEN SAWMILL 8760 .2 .0 * 20.2 16.5 123
MIDDLE POWDER 7760 .0 .0 100* 28.4 21.7 131
POWDER RIVER PASS 9480 .0 .0 100* 26.5 21.5 124
SUCKER CREEK 8880 .2 .0 * 27.4 24.2 113
TIE CREEK 6870 .3 -M * 23.5 20.0 118
----- -----
Basin wide percent of average * 115
BELLE FOURCHE
BLIND PARK 6890 .2 .0 * 27.5 23.2 120
NORTH RAPID CREEK 6130 .0 -M * 25.4 -M *
WARREN PEAK 6520 .0 .0 100* 27.4 17.4 157
----- -----
Basin wide percent of average * 136
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 32.8 33.0 100
DIVIDE PEAK 8800 .0 .0 100* 35.7 32.8 109
ELK RIVER 8700 .0 .0 100* 31.7 26.9 118
JOE WRIGHT 10120 .0 .3 0* 40.0 38.5 104
NORTH FRENCH CREEK 10100 .0 .0 100* 42.8 35.0 123
OLD BATTLE 10000 1.2 .6 200* 53.0 42.7 125
SOUTH BRUSH CREEK 8400 5.6 .0 * 29.0 26.5 110
TOWER 10500 .0 2.3 0* 54.2 52.4 104
WEBBER SPRINGS 9200 .0 .0 100* 38.9 36.4 107
WILLOW CREEK PASS 9540 .0 .0 100* 19.5 21.2 93
----- -----
Basin wide percent of average 39* 110
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 2.9 .0 * 36.0 29.7 122
CASPER MTN. 7900 .3 .0 * 27.9 26.2 107
DEADMAN HILL 10220 .0 .0 100* 27.4 27.7 99
DEER PARK 9700 .2 -M * 38.3 -M *
LAPRELE CREEK 8320 .0 .0 100* 26.9 21.2 127
RENO HILL 8400 .0 .0 100* 30.5 27.5 111
ROACH 9700 .0 .0 100* 30.7 33.0 93
SAND LAKE 10080 .0 .6 0* 44.7 31.4 143
SOUTH PASS 9040 -M .0 * 34.3 27.0 127
WINDY PEAK 7840 .0 .0 100* 24.0 18.9 128
----- -----
Basin wide percent of average 0* 117
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 24.4 22.2 110
DIVIDE PEAK 8800 .0 .0 100* 35.7 32.8 109
OLD BATTLE 10000 1.2 .6 200* 53.0 42.7 125
SANDSTONE RS 8150 .6 .0 * 29.2 27.7 106
WHISKEY PARK 8950 .0 .0 100* 42.4 40.3 106
----- -----
Basin wide percent of average 200* 112
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 23.4 22.7 104
BLIND BULL SUM 8650 .0 .0 100* 32.2 31.5 102
EAST RIM DIVIDE 7930 .0 .0 100* 20.9 21.2 99
ELKHART PARK G.S. 9400 .2 .0 * 23.7 22.4 107
GROS VENTRE SUMMIT 8775 .0 .0 100* 23.4 22.2 106
KENDALL R.S. 7740 .0 .0 100* 22.4 21.7 104
LOOMIS PARK 8240 .0 .0 100* 27.9 26.4 106
NEW FORK LAKE 8340 .0 .0 100* 20.5 20.2 102
SNIDER BASIN 8250 .0 .0 100* 26.0 21.2 123
SPRING CREEK DIVIDE 9000 .0 .0 100* 39.8 36.2 111
TRIPLE PEAK 8500 .0 .0 100* 42.0 41.9 101
----- -----
Basin wide percent of average * 106
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 20.4 18.7 110
HEWINTA 9500 .0 .0 100* 22.7 21.7 105
HICKERSON PARK 9150 .3 .0 * 18.2 17.9 102
HOLE-IN-ROCK 9150 .0 .0 100* 18.2 17.9 102
INDIAN CREEK 9425 .0 .0 100* 37.7 34.8 109
KELLEY R.S. 8180 .0 .0 100* 27.7 26.2 106
STEEL CREEK PARK 10100 .0 .0 100* 27.2 24.4 112
----- -----
Basin wide percent of average * 107
UPPER BEAR RIVER
BUG LAKE 7950 .2 .0 * 32.0 26.7 120
HAYDEN FORK 9400 .0 .0 100* 31.4 29.0 108
KELLEY R.S. 8180 .0 .0 100* 27.7 26.2 106
LILY LAKE 9050 -M .0 * 27.9 23.7 118
MONTE CRISTO 8960 -M .0 * 41.4 36.2 115
SALT RIVER SUMMIT 7600 .0 .0 100* 26.2 23.5 112
TRIAL LAKE 9960 .0 .0 100* 34.2 34.4 100
----- -----
Basin wide percent of average * 111
-----------------------------------------------------------------------------
-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.