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: OCTOBER 13 , 2008
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 .3 .1 300 1.5 .7 214
COTTONWOOD CREEK 7670 .3 .0 1.3 1.0 130
GRAND TARGHEE 9260 .9 -M * 2.4 -M *
GRANITE CREEK 6770 .5 .0 1.5 .6 250
GRASSY LAKE 7265 1.0 .2 500 1.8 1.2 150
GROS VENTRE SUMMIT 8750 1.2 .5 240 1.7 .7 243
GUNSIGHT PASS 9820 .4 -M * .8 -M *
LEWIS LAKE DIVIDE 7850 .5 .0 1.7 1.0 170
PHILLIPS BENCH 8200 .8 .1 800 1.3 .8 162
SALT RIVER SUMMIT 7760 .0 .0 100 .8 .7 114
SNAKE RIVER STATION 6920 .3 .0 1.1 .8 138
SPRING CREEK DIVIDE 9000 .6 .2 300 1.0 .8 125
THUMB DIVIDE 7980 .6 .1 600 2.0 .8 250
TOGWOTEE PASS 9580 1.1 .8 138 1.6 1.0 160
TWO OCEAN PLATEAU 9240 1.0 1.0 100 1.2 1.1 109
WILLOW CREEK 8380 .9 .3 300 1.7 1.4 121
----- -----
Basin wide percent of average 227 160
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 .7 1.1 64 .7 .8 87
BLACK BEAR 8170 1.1 .7 157 3.0 1.1 273
CANYON 7870 .5 .2 250 .4 .6 67
FISHER CREEK 9100 .9 .8 112 1.2 1.1 109
MADISON PLATEAU 7750 .7 .4 175 1.6 1.0 160
NORTHEAST ENTRANCE 7350 .5 .0 .8 .6 133
PARKER PEAK 9400 1.2 1.0 120 1.2 1.0 120
SYLVAN LAKE 8420 .4 .6 67 1.4 1.0 140
THUMB DIVIDE 7980 .6 .1 600 2.0 .8 250
TWO OCEAN PLATEAU 9240 1.0 1.0 100 1.2 1.1 109
WHISKEY CREEK 6800 .2 .1 200 1.2 .7 171
WHITE MILL 8700 .8 .6 133 .9 1.0 90
WOLVERINE 7650 1.2 .1 1200 .8 .8 100
----- -----
Basin wide percent of average 139 141
WIND RIVER
BURROUGHS CREEK 8750 1.6 .2 800 1.9 .6 317
COLD SPRINGS 9630 1.5 .2 750 2.0 .7 286
DEER PARK 9700 1.3 .8 162 2.4 .8 300
HOBBS PARK 10100 2.1 .7 300 2.2 .8 275
LITTLE WARM 9370 1.3 .3 433 1.6 .6 267
SOUTH PASS 9040 1.3 .4 325 2.8 .7 400
ST. LAWRENCE ALT 8620 1.8 .1 1800 2.2 .7 314
TOGWOTEE PASS 9580 1.1 .8 138 1.6 1.0 160
TOWNSEND CREEK 8700 1.9 .2 950 2.4 .8 300
----- -----
Basin wide percent of average 376 285
BIGHORN BASIN
BALD MTN. 9380 1.6 1.4 114 1.9 1.0 190
BEAR TRAP MEADOW 8200 .7 .1 700 1.5 .7 214
BLACKWATER 9780 1.0 1.3 77 1.4 1.0 140
BONE SPRINGS DIV 9350 1.3 1.1 118 1.6 1.0 160
EVENING STAR 9200 1.1 1.0 110 1.6 1.0 160
GRAVE SPRINGS 8550 .9 .3 300 1.7 .9 189
KIRWIN 9550 1.2 .8 150 1.2 .7 171
MARQUETTE 8760 1.7 .8 212 1.7 .9 189
MIDDLE POWDER 7760 1.1 .5 220 1.8 1.0 180
OWL CREEK 8975 1.6 .4 400 1.5 .5 300
POWDER RIVER PASS 9480 .8 .4 200 1.5 .8 188
SHELL CREEK 9580 1.8 1.5 120 2.3 .8 287
SYLVAN LAKE 8420 .4 .6 67 1.4 1.0 140
SYLVAN ROAD 7120 .4 .0 1.0 .6 167
TIMBER CREEK 7950 1.4 .1 1400 2.2 .6 367
YOUNTS PEAK 8350 .8 .5 160 1.2 .7 171
----- -----
Basin wide percent of average 161 193
SHOSHONE RIVER
BLACKWATER 9780 1.0 1.3 77 1.4 1.0 140
EVENING STAR 9200 1.1 1.0 110 1.6 1.0 160
KIRWIN 9550 1.2 .8 150 1.2 .7 171
MARQUETTE 8760 1.7 .8 212 1.7 .9 189
SYLVAN LAKE 8420 .4 .6 67 1.4 1.0 140
SYLVAN ROAD 7120 .4 .0 1.0 .6 167
YOUNTS PEAK 8350 .8 .5 160 1.2 .7 171
----- -----
Basin wide percent of average 124 161
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .7 .1 700 1.5 .7 214
BIG GOOSE 7990 .7 .3 233 1.3 .9 144
BONE SPRINGS DIV 9350 1.3 1.1 118 1.6 1.0 160
BURGESS JUNCTION 7880 1.0 .6 167 1.7 .9 189
CLOUD PEAK RESERVOIR 9860 1.3 .4 325 1.2 1.1 109
DOME LAKE 8880 .8 .7 114 1.4 1.0 140
GRAVE SPRINGS 8550 .9 .3 300 1.7 .9 189
HANSEN SAWMILL 8360 1.1 .2 550 1.0 .7 143
MIDDLE POWDER 7760 1.1 .5 220 1.8 1.0 180
POWDER RIVER PASS 9480 .8 .4 200 1.5 .8 188
SUCKER CREEK 8880 1.2 .5 240 1.7 1.0 170
TIE CREEK 6870 1.7 .0 2.6 1.1 236
----- -----
Basin wide percent of average 214 171
BELLE FOURCHE
BLIND PARK 6890 .8 .0 1.0 1.0 100
COLE CANYON 5910 1.4 .2 700 2.4 .7 343
NORTH RAPID CREEK 6130 .5 .1 500 1.4 1.0 140
----- -----
Basin wide percent of average 633 178
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 .0 100 .1 .8 12
DIVIDE PEAK 8880 .1 .6 17 1.8 1.0 180
ELK RIVER 8700 .0 .1 0 1.0 .8 125
JOE WRIGHT 10120 .2 .7 29 .8 1.3 62
NORTH FRENCH CREEK 10130 .6 1.2 50 1.2 1.1 109
OLD BATTLE 10000 .1 1.0 10 1.2 1.2 100
SAGE CREEK BASIN 7850 .0 .2 0 .8 .6 133
SOUTH BRUSH CREEK 8440 .0 .1 0 .6 .9 67
TOWER 10500 .2 .8 25 1.1 1.2 92
WEBBER SPRINGS 9250 .0 .4 0 .8 1.1 73
WILLOW CREEK PASS 9540 .0 .3 0 .5 .7 71
----- -----
Basin wide percent of average 22 93
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .3 .8 37 .4 .9 44
CASPER MTN. 7900 .5 .5 100 1.4 .9 156
DEADMAN HILL 10220 .1 .8 12 .5 .9 56
DEER PARK 9700 1.3 .8 162 2.4 .8 300
LAPRELE CREEK 8375 .0 .2 0 .4 .7 57
RENO HILL 8400 .9 .6 150 .9 .9 100
ROACH 9700 .5 .2 250 .6 .9 67
SAND LAKE 10050 .7 1.1 64 .5 1.1 45
SOUTH PASS 9040 1.3 .4 325 2.8 .7 400
WINDY PEAK 7900 .3 .1 300 .1 .6 17
----- -----
Basin wide percent of average 107 119
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 .5 .6 83
DIVIDE PEAK 8880 .1 .6 17 1.8 1.0 180
OLD BATTLE 10000 .1 1.0 10 1.2 1.2 100
SANDSTONE RS 8150 .0 .0 100 .6 .8 75
WHISKEY PARK 8950 .0 .4 0 .9 1.1 82
----- -----
Basin wide percent of average 10 106
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .6 .3 200 1.1 .7 157
BLIND BULL SUM 8650 1.3 .3 433 1.9 .7 271
EAST RIM DIVIDE 7930 .9 .0 1.6 .5 320
ELKHART PARK G.S. 9400 .6 .2 300 1.5 .8 188
GROS VENTRE SUMMIT 8750 1.2 .5 240 1.7 .7 243
GUNSIGHT PASS 9820 .4 -M * .8 -M *
KENDALL R.S. 7740 .8 .0 1.3 .6 217
LOOMIS PARK 8240 1.1 .2 550 1.9 .7 271
NEW FORK LAKE 8340 .6 .0 1.0 .6 167
SNIDER BASIN 8060 .8 .1 800 .9 .5 180
SPRING CREEK DIVIDE 9000 .6 .2 300 1.0 .8 125
TRIPLE PEAK 8500 1.3 .2 650 1.6 .8 200
----- -----
Basin wide percent of average 375 209
LOWER GREEN RIVER
HAMS FORK 7840 .3 .0 1.1 .5 220
HEWINTA 9519 .1 .3 33 .7 .9 78
HICKERSON PARK 9145 .0 .0 100 .9 .6 150
HOLE-IN-ROCK 9150 .5 .0 1.6 .7 229
INDIAN CREEK 9425 1.2 .3 400 1.4 .8 175
KELLEY R.S. 8180 .6 .1 600 1.2 .7 171
STEEL CREEK PARK 10200 .6 .7 86 1.2 .8 150
----- -----
Basin wide percent of average 179 162
UPPER BEAR RIVER
BUG LAKE 7950 .4 .4 100 1.2 .9 133
HAYDEN FORK 9212 .1 .3 33 1.2 .9 133
KELLEY R.S. 8180 .6 .1 600 1.2 .7 171
LILY LAKE 9156 .6 .4 150 1.7 .9 189
MONTE CRISTO 8960 .6 .6 100 1.6 1.0 160
SALT RIVER SUMMIT 7760 .0 .0 100 .8 .7 114
TRIAL LAKE 9992 .3 .7 43 1.3 1.0 130
----- -----
Basin wide percent of average 104 148
-----------------------------------------------------------------------------
-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 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.