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 WEDNESDAY: OCTOBER 9 , 2002
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 .0 .1 0* .4 .5 80
COTTONWOOD CREEK 7600 .1 .1 100* .8 .8 100
GRANITE CREEK 6770 .1 .1 100* .9 .5 180
GRASSY LAKE 7265 .0 .2 0* 1.1 .9 122
GROS VENTRE SUMMIT 8775 .7 .3 233* .8 .5 160
LEWIS LAKE DIVIDE 7860 .0 .1 0* 1.1 .9 122
PHILLIPS BENCH 8200 .1 .1 100* .9 .6 150
SALT RIVER SUMMIT 7600 .1 .0 * .8 .5 160
SNAKE RIVER STATION 6920 -M .0 * .7 .6 117
SPRING CREEK DIVIDE 9000 .6 .2 300* .8 .7 114
THUMB DIVIDE 7980 .0 .1 0* .9 .5 180
TOGWOTEE PASS 9580 .8 .6 133* .7 .7 100
TWO OCEAN PLATEAU 9360 1.0 .7 143* .8 .8 100
WILLOW CREEK 8450 .0 .2 0* .9 1.0 90
----- -----
Basin wide percent of average 121* 122
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 1.1 .9 122* 1.0 .6 167
BLACK BEAR 8170 1.3 .6 217* 1.5 .9 167
CANYON 8090 .1 .2 50* .6 .5 120
FISHER CREEK 9100 .7 .7 100* .9 .9 100
MADISON PLATEAU 7750 .0 .3 0* .8 .7 114
NORTHEAST ENTRANCE 7350 .0 .1 0* .4 .4 100
PARKER PEAK 9400 .6 .9 67* 1.0 .6 167
SYLVAN LAKE 8420 .7 .7 100* 1.2 .7 171
THUMB DIVIDE 7980 .0 .1 0* .9 .5 180
TWO OCEAN PLATEAU 9360 1.0 .7 143* .8 .8 100
WHISKEY CREEK 6800 .1 .1 100* .6 .6 100
WHITE MILL 8700 .9 .5 180* .8 .7 114
WOLVERINE 7650 .1 .1 100* .7 .5 140
----- -----
Basin wide percent of average 112* 133
WIND RIVER
BURROUGHS CREEK 8750 .7 .3 233* .8 .4 200
COLD SPRINGS 9630 .6 .2 300* 1.1 .5 220
DEER PARK 9700 .7 .6 117* .6 .7 86
HOBBS PARK 10100 1.7 .5 340* 1.4 .6 233
LITTLE WARM 9370 .6 .3 200* .6 .5 120
SOUTH PASS 9040 .1 .3 33* .7 .6 117
ST. LAWRENCE ALT 8620 1.0 .1 1000* 1.5 .5 300
TOGWOTEE PASS 9580 .8 .6 133* .7 .7 100
TOWNSEND CREEK 8700 .5 .2 250* 1.2 .6 200
----- -----
Basin wide percent of average 216* 169
BIGHORN BASIN
BALD MTN. 9380 1.1 1.1 100* 1.1 .6 183
BEAR TRAP MEADOW 8200 .0 .2 0* .5 .5 100
BLACKWATER 9780 1.5 1.1 136* 1.4 .7 200
BONE SPRINGS DIV 9350 1.3 1.0 130* 1.4 .7 200
EVENING STAR 9200 .8 .9 89* 1.1 .7 157
GRAVE SPRINGS 8550 .1 .2 50* .7 .6 117
KIRWIN 9550 .7 .6 117* .9 .5 180
MARQUETTE 8760 .8 .7 114* .8 .6 133
MIDDLE POWDER 7760 .0 .4 0* .5 .7 71
OWL CREEK 8975 1.1 .3 367* 1.0 .3 333
POWDER RIVER PASS 9480 .5 .4 125* .8 .5 160
SHELL CREEK 9580 1.1 1.2 92* 1.1 .5 220
SYLVAN LAKE 8420 .7 .7 100* 1.2 .7 171
SYLVAN ROAD 7120 .0 .1 0* 1.1 .6 183
TIMBER CREEK 7950 .2 .1 200* .9 .4 225
YOUNTS PEAK 8350 .6 .4 150* .7 .5 140
----- -----
Basin wide percent of average 112* 167
SHOSHONE RIVER
BLACKWATER 9780 1.5 1.1 136* 1.4 .7 200
EVENING STAR 9200 .8 .9 89* 1.1 .7 157
KIRWIN 9550 .7 .6 117* .9 .5 180
MARQUETTE 8760 .8 .7 114* .8 .6 133
SYLVAN LAKE 8420 .7 .7 100* 1.2 .7 171
SYLVAN ROAD 7120 .0 .1 0* 1.1 .6 183
YOUNTS PEAK 8350 .6 .4 150* .7 .5 140
----- -----
Basin wide percent of average 113* 167
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .2 0* .5 .5 100
BIG GOOSE 7990 .0 .2 0* .9 .6 150
BONE SPRINGS DIV 9350 1.3 1.0 130* 1.4 .7 200
BURGESS JUNCTION 7880 .3 .5 60* 1.0 .6 167
CLOUD PEAK RESERVOIR 9860 .2 .3 67* .9 .7 129
DOME LAKE 8880 .7 .5 140* 1.0 .7 143
GRAVE SPRINGS 8550 .1 .2 50* .7 .6 117
HANSEN SAWMILL 8360 .2 .2 100* .8 .5 160
MIDDLE POWDER 7760 .0 .4 0* .5 .7 71
POWDER RIVER PASS 9480 .5 .4 125* .8 .5 160
SUCKER CREEK 8880 .7 .4 175* 1.1 .6 183
TIE CREEK 6870 .0 .0 100* .8 .7 114
----- -----
Basin wide percent of average 93* 141
BELLE FOURCHE
BLIND PARK 6890 .2 .0 * .9 .7 129
COLE CANYON 5910 -M -M * .4 -M *
NORTH RAPID CREEK 6130 .1 .1 100* .8 .7 114
----- -----
Basin wide percent of average 100* 121
UPPER N. PLATTE RIVER
COLUMBINE 9400 .3 .0 * 1.3 .6 217
DIVIDE PEAK 8800 .1 .4 25* 1.9 .7 271
ELK RIVER 8700 .0 .1 0* 1.2 .6 200
JOE WRIGHT 10120 .5 .5 100* 1.2 .9 133
NORTH FRENCH CREEK 10100 1.2 .8 150* 2.0 .9 222
OLD BATTLE 10000 2.2 .7 314* 2.5 1.0 250
SAGE CREEK BASIN 7850 .0 .2 0* 1.4 -M *
SOUTH BRUSH CREEK 8400 .0 .1 0* 1.6 .7 229
TOWER 10500 2.3 .6 383* 2.8 1.1 255
WEBBER SPRINGS 9200 .0 .3 0* 1.4 .8 175
WILLOW CREEK PASS 9540 .1 .2 50* .5 .5 100
----- -----
Basin wide percent of average 164* 210
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .3 .6 50* 1.3 .7 186
CASPER MTN. 7900 .0 .3 0* 1.0 .7 143
DEADMAN HILL 10220 .0 .6 0* .3 .7 43
DEER PARK 9700 .7 .6 117* .6 .7 86
LAPRELE CREEK 8320 -M .2 * .9 .5 180
RENO HILL 8400 .6 .4 150* -M .7 *
ROACH 9700 .0 .2 0* .7 .6 117
SAND LAKE 10080 .8 .9 89* 1.4 .8 175
SOUTH PASS 9040 .1 .3 33* .7 .6 117
WINDY PEAK 7840 .1 .1 100* .9 .5 180
----- -----
Basin wide percent of average 65* 134
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 1.8 .5 360
DIVIDE PEAK 8800 .1 .4 25* 1.9 .7 271
OLD BATTLE 10000 2.2 .7 314* 2.5 1.0 250
SANDSTONE RS 8150 .0 .1 0* 1.5 .6 250
WHISKEY PARK 8950 .4 .3 133* 1.7 .8 212
----- -----
Basin wide percent of average 180* 261
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .8 .2 400* .7 .5 140
BLIND BULL SUM 8650 .2 .2 100* .7 .6 117
EAST RIM DIVIDE 7930 .1 .0 * 1.0 .4 250
ELKHART PARK G.S. 9400 1.0 .1 1000* 1.0 .5 200
GROS VENTRE SUMMIT 8775 .7 .3 233* .8 .5 160
KENDALL R.S. 7740 .1 .0 * .8 .4 200
LOOMIS PARK 8240 .3 .1 300* .9 .5 180
NEW FORK LAKE 8340 .1 .0 * .6 .4 150
SNIDER BASIN 8250 .1 .1 100* .8 .4 200
SPRING CREEK DIVIDE 9000 .6 .2 300* .8 .7 114
TRIPLE PEAK 8500 .0 .1 0* 1.0 .6 167
----- -----
Basin wide percent of average 285* 165
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* .9 .4 225
HEWINTA 9500 .0 .2 0* .8 .6 133
HICKERSON PARK 9150 .2 .0 * 1.1 .5 220
HOLE-IN-ROCK 9150 .0 .0 100* 1.0 .4 250
INDIAN CREEK 9425 1.4 .2 700* 1.5 .7 214
KELLEY R.S. 8180 .2 .1 200* .7 .6 117
STEEL CREEK PARK 10100 .1 .6 17* .4 .6 67
----- -----
Basin wide percent of average 155* 168
UPPER BEAR RIVER
BUG LAKE 7950 .0 .4 0* .9 .6 150
HAYDEN FORK 9400 -M .3 * 1.3 .6 217
KELLEY R.S. 8180 .2 .1 200* .7 .6 117
LILY LAKE 9050 .0 .3 0* 1.3 .6 217
MONTE CRISTO 8960 -M .5 * .8 .7 114
SALT RIVER SUMMIT 7600 .1 .0 * .8 .5 160
TRIAL LAKE 9960 .4 .6 67* 1.4 .7 200
----- -----
Basin wide percent of average 43* 167
-----------------------------------------------------------------------------
-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.