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 TUESDAY: OCTOBER 7 , 1997
-----------------------------------------------------------------------------
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* .3 .4 75
COTTONWOOD CREEK 7600 .0 .0 100* .5 .4 125
GRANITE CREEK 6770 .2 .0 * .1 .4 25
GRASSY LAKE 7265 .1 .0 * .8 .6 133
GROS VENTRE SUMMIT 8775 .3 .0 * .1 .3 33
LEWIS LAKE DIVIDE 7860 .1 .0 * .6 .7 86
PHILLIPS BENCH 8200 .1 .0 * .5 .5 100
SALT RIVER SUMMIT 7600 .2 .0 * -M .3 *
SNAKE RIVER STATION 6920 .0 .0 100* .3 .4 75
SPRING CREEK DIVIDE 9000 .0 .0 100* .1 .4 25
THUMB DIVIDE 7980 .1 .0 * .3 .4 75
TOGWOTEE PASS 9580 .2 .4 50* .2 .5 40
TWO OCEAN PLATEAU 9360 .2 .6 33* .6 .5 120
WILLOW CREEK 8450 .2 .0 * .7 .5 140
----- -----
Basin wide percent of average 40* 85
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 -M 1.0 * .0 .4 0
BLACK BEAR 7950 -M .7 * .3 .7 43
CANYON 7940 -M .1 * .3 .3 100
FISHER CREEK 9100 -M .6 * -M .6 *
MADISON PLATEAU 7750 -M .3 * .3 .5 60
NORTHEAST ENTRANCE 7350 -M .0 * .2 .3 67
PARKER PEAK 9400 -M 1.2 * .3 .4 75
SYLVAN LAKE 8420 -M .9 * .6 .5 120
THUMB DIVIDE 7980 .1 .0 * .3 .4 75
TWO OCEAN PLATEAU 9360 .2 .6 33* .6 .5 120
WHISKEY CREEK 6800 -M .1 * .2 .4 50
WHITE MILL 8700 -M .5 * .3 .5 60
WOLVERINE 7650 -M .0 * .4 .3 133
----- -----
Basin wide percent of average 33* 73
WIND RIVER
BURROUGHS CREEK 8750 -M .2 * .2 .3 67
CHRISTINA LAKE 9980 -M .8 * -M .5 *
COLD SPRINGS 9630 -M .2 * .2 .4 50
HOBBS PARK 10100 -M .5 * .0 .4 0
LITTLE WARM 9620 -M .2 * .4 .3 133
SOUTH PASS 9040 -M .7 * .1 .4 25
ST. LAWRENCE ALT 8620 -M .1 * .1 .3 33
TOGWOTEE PASS 9580 .2 .4 50* .2 .5 40
TOWNSEND CREEK 8700 -M .1 * .6 .4 150
----- -----
Basin wide percent of average 50* 60
BIGHORN BASIN
BALD MTN. 9375 -M .9 * .0 .4 0
BEAR TRAP MEADOW 7900 -M .1 * .0 .3 0
BLACKWATER 9780 -M 1.0 * .6 .5 120
BONE SPRINGS DIV 9350 -M 1.2 * .3 .4 75
EVENING STAR 9200 -M 1.0 * .6 .6 100
GRAVE SPRINGS 8550 .0 -M * .1 .4 25
KIRWIN 9550 -M .5 * .1 .3 33
LOST CREEK 8080 -M .4 * -M .4 *
MARQUETTE 8760 -M .4 * .2 .3 67
MIDDLE POWDER 7760 -M .4 * -M .4 *
OWL CREEK 8975 -M .3 * -M .2 *
POWDER RIVER PASS 9480 -M .3 * -M .4 *
SHELL CREEK 9580 -M 1.0 * .0 .4 0
SYLVAN LAKE 8420 -M .9 * .6 .5 120
SYLVAN ROAD 8120 -M .4 * .5 .4 125
TIMBER CREEK 7950 .2 .0 * -M .3 *
YOUNTS PEAK 8350 -M .6 * .1 .4 25
----- -----
Basin wide percent of average * 63
SHOSHONE RIVER
BLACKWATER 9780 -M 1.0 * .6 .5 120
EVENING STAR 9200 -M 1.0 * .6 .6 100
KIRWIN 9550 -M .5 * .1 .3 33
MARQUETTE 8760 -M .4 * .2 .3 67
SYLVAN LAKE 8420 -M .9 * .6 .5 120
SYLVAN ROAD 8120 -M .4 * .5 .4 125
YOUNTS PEAK 8350 -M .6 * .1 .4 25
----- -----
Basin wide percent of average * 90
POWDER-TONGUE
BEAR TRAP MEADOW 7900 -M .1 * .0 .3 0
BONE SPRINGS DIV 9350 -M 1.2 * .3 .4 75
BURGESS JUNCTION 7880 -M .5 * .1 .4 25
CLOUD PEAK RESERVOIR 9860 -M .4 * .8 .4 200
DOME LAKE 8880 -M .6 * .0 .4 0
GRAVE SPRINGS 8550 .0 -M * .1 .4 25
HANSEN SAWMILL 8760 -M .2 * .0 .3 0
LOST CREEK 8080 -M .4 * -M .4 *
MIDDLE POWDER 7760 -M .4 * -M .4 *
POWDER RIVER PASS 9480 -M .3 * -M .4 *
SUCKER CREEK 8880 -M .4 * .6 .4 150
TIE CREEK 6870 .0 -M * .1 .4 25
----- -----
Basin wide percent of average * 59
BELLE FOURCHE
BLIND PARK 6890 .0 .4 0* .0 .3 0
NORTH RAPID CREEK 6130 .1 -M * .0 -M *
WARREN PEAK 6520 .1 .4 25* .1 .3 33
----- -----
Basin wide percent of average 12* 17
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .2 0* .5 .5 100
DIVIDE PEAK 8800 .0 .3 0* .2 .6 33
ELK RIVER 8700 .0 .0 100* .6 .4 150
JOE WRIGHT 10120 .1 .5 20* .4 .7 57
NORTH FRENCH CREEK 10100 .3 .3 100* .4 .4 100
OLD BATTLE 10000 .1 1.0 10* .7 .6 117
SOUTH BRUSH CREEK 8400 .2 .0 * .1 .4 25
TOWER 10500 -M .9 * -M .8 *
WEBBER SPRINGS 9200 .0 .2 0* .6 .6 100
WILLOW CREEK PASS 9540 .0 .1 0* .4 .3 133
----- -----
Basin wide percent of average 19* 87
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 .5 0* .1 .5 20
CASPER MTN. 7900 .3 .2 150* .1 .5 20
CHRISTINA LAKE 9980 -M .8 * -M .5 *
DEADMAN HILL 10220 .0 .2 0* .0 .5 0
LAPRELE CREEK 8320 .0 .0 100* .0 .3 0
RENO HILL 8400 .0 .3 0* .0 .5 0
ROACH 9700 .0 .2 0* .3 .5 60
SAND LAKE 10080 .1 .4 25* .2 .5 40
SOUTH PASS 9040 -M .7 * .1 .4 25
WINDY PEAK 7840 .0 .0 100* .0 .2 0
----- -----
Basin wide percent of average 22* 21
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* .5 .3 167
DIVIDE PEAK 8800 .0 .3 0* .2 .6 33
OLD BATTLE 10000 .1 1.0 10* .7 .6 117
SANDSTONE RS 8150 .0 .0 100* .5 .3 167
WHISKEY PARK 8950 .0 .3 0* -M .4 *
----- -----
Basin wide percent of average 6* 106
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .1 .0 * .4 .3 133
BLIND BULL SUM 8650 .3 .0 * .3 .4 75
EAST RIM DIVIDE 7930 .0 .0 100* .0 .3 0
ELKHART PARK G.S. 9400 .2 .0 * .3 .3 100
GROS VENTRE SUMMIT 8775 .3 .0 * .1 .3 33
KENDALL R.S. 7740 .1 .0 * .1 .3 33
LOOMIS PARK 8240 .0 .0 100* .0 .3 0
NEW FORK LAKE 8340 .0 .0 100* .5 .3 167
SNIDER BASIN 8250 .2 .0 * .2 .3 67
SPRING CREEK DIVIDE 9000 .0 .0 100* .1 .4 25
TRIPLE PEAK 8500 .1 .0 * .8 .5 160
----- -----
Basin wide percent of average * 76
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* .0 .3 0
HEWINTA 9500 .2 .0 * .4 .5 80
HICKERSON PARK 9150 .0 .0 100* .2 .4 50
HOLE-IN-ROCK 9150 .0 .0 100* .1 .4 25
INDIAN CREEK 9425 .2 .0 * .2 .4 50
KELLEY R.S. 8180 .4 .0 * .3 .3 100
STEEL CREEK PARK 10100 .0 .6 0* 1.2 .5 240
----- -----
Basin wide percent of average 0* 86
UPPER BEAR RIVER
BUG LAKE 7950 .1 .4 25* .1 .6 17
HAYDEN FORK 9400 .0 .2 0* .4 .5 80
KELLEY R.S. 8180 .4 .0 * .3 .3 100
LILY LAKE 9050 .0 .3 0* .2 .5 40
MONTE CRISTO 8960 .1 .5 20* .1 .7 14
SALT RIVER SUMMIT 7600 .2 .0 * -M .3 *
TRIAL LAKE 9960 .1 .5 20* .1 .6 17
----- -----
Basin wide percent of average 16* 38
-----------------------------------------------------------------------------
-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.