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 SUNDAY: OCTOBER 6 , 2013
------------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
------------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 .0 .0 * .8 .4 200
BLACK BEAR 8170 1.3 .0 * 1.2 .7 171
BLIND BULL SUM 8650 .6 .0 * .6 .4 150
COTTONWOOD CREEK 7670 .5 .0 * .6 .5 120
EAST RIM DIVIDE 7930 .1 .0 * .6 .3 200
GRAND TARGHEE 9260 1.3 .9 144* 1.1 1.0 110
GRANITE CREEK 6770 .1 .0 * .6 .4 150
GRASSY LAKE 7265 .4 .0 * .6 .7 86
GROS VENTRE SUMMIT 8750 1.1 .0 * .9 .3 300
GUNSIGHT PASS 9820 1.9 .0 * 1.5 .5 300
LEWIS LAKE DIVIDE 7850 .1 .0 * .6 .6 100
PHILLIPS BENCH 8200 .1 .0 * .5 .4 125
SALT RIVER SUMMIT 7760 .0 .0 * .6 .3 200
SNAKE RIVER STATION 6920 .1 .0 * .5 .6 83
SPRING CREEK DIVIDE 9000 .3 .0 * .4 .4 100
THUMB DIVIDE 7980 .0 .0 * .5 .5 100
TOGWOTEE PASS 9580 2.5 .0 * 1.1 .5 220
TWO OCEAN PLATEAU 9240 2.1 .2 1050* 1.1 .5 220
WILLOW CREEK 8380 .4 .0 * 1.2 .6 200
YOUNTS PEAK 8350 -M .0 * -M .5 *
----- -----
Basin Index (%) 1173* 156
MADISON-GALLATIN
BLACK BEAR 8170 1.3 .0 * 1.2 .7 171
CANYON 7870 .9 .0 * 1.1 .4 275
MADISON PLATEAU 7750 .6 .0 * 1.0 .6 167
WEST YELLOWSTONE 6700 .0 .0 * .5 .4 125
WHISKEY CREEK 6800 .0 .0 * .7 .4 175
----- -----
Basin Index (%) * 180
YELLOWSTONE
BEARTOOTH LAKE 9360 1.6 .5 320* .7 .4 175
BURNT MTN 5880 -M .0 * -M 1.0 *
CANYON 7870 .9 .0 * 1.1 .4 275
COLE CREEK 7850 2.8 .5 560* 2.2 .8 275
EVENING STAR 9200 2.2 .0 * 1.2 .6 200
FISHER CREEK 9100 2.4 .0 * .9 .6 150
NORTHEAST ENTRANCE 7350 .1 .0 * .4 .4 100
PARKER PEAK 9400 1.8 .4 450* .7 .6 117
SYLVAN LAKE 8420 1.0 .0 * 1.1 .6 183
THUMB DIVIDE 7980 .0 .0 * .5 .5 100
TWO OCEAN PLATEAU 9240 2.1 .2 1050* 1.1 .5 220
WHITE MILL 8700 1.5 .0 * .8 .5 160
WOLVERINE 7650 .1 .0 * .7 .4 175
----- -----
Basin Index (%) 1031* 181
WIND RIVER
BURROUGHS CREEK 8750 -M .0 * -M .3 *
CASTLE CREEK 8400 .6 -M * 1.0 -M *
COLD SPRINGS 9630 1.8 .0 * -M .4 *
DEER PARK 9700 2.0 .0 * 1.9 .6 317
HOBBS PARK 10100 2.5 .0 * 2.0 .5 400
KIRWIN 9550 2.4 .0 * 1.5 .4 375
LITTLE WARM 9370 2.1 .0 * -M .4 *
OWL CREEK 8975 1.3 .0 * 1.1 .3 367
SOUTH PASS 9040 1.6 .0 * 1.9 .5 380
ST. LAWRENCE ALT 8620 1.4 .0 * 1.7 .5 340
TOGWOTEE PASS 9580 2.5 .0 * 1.1 .5 220
TOWNSEND CREEK 8700 -M .0 * -M .5 *
----- -----
Basin Index (%) * 339
BIGHORN BASIN
BALD MTN. 9380 2.5 .5 500* 1.3 .5 260
BEAR TRAP MEADOW 8200 2.2 .0 * -M .4 *
BONE SPRINGS DIV 9350 1.9 .5 380* 1.4 .6 233
GRAVE SPRINGS 8550 -M .0 * -M .6 *
KIRWIN 9550 2.4 .0 * 1.5 .4 375
MARQUETTE 8760 3.0 -M * -M -M *
MIDDLE POWDER 7760 3.3 .0 * 2.3 .5 460
OWL CREEK 8975 1.3 .0 * 1.1 .3 367
POWDER RIVER PASS 9480 2.2 .0 * 1.9 .5 380
SHELL CREEK 9580 2.8 .7 400* 1.7 .5 340
TIMBER CREEK 7950 1.5 .0 * 2.0 .5 400
----- -----
Basin Index (%) 1182* 347
SHOSHONE RIVER
BLACKWATER 9780 3.7 .2 1850* 1.6 .6 267
EVENING STAR 9200 2.2 .0 * 1.2 .6 200
MARQUETTE 8760 3.0 -M * -M -M *
SYLVAN ROAD 7120 .7 .0 * 1.2 .5 240
YOUNTS PEAK 8350 -M .0 * -M .5 *
----- -----
Basin Index (%) 3300* 235
POWDER RIVER
BEAR TRAP MEADOW 8200 2.2 .0 * -M .4 *
CLOUD PEAK RESERVOIR 9860 3.0 .0 * -M .5 *
GRAVE SPRINGS 8550 -M .0 * -M .6 *
HANSEN SAWMILL 8360 2.6 .0 * -M .4 *
MIDDLE POWDER 7760 3.3 .0 * 2.3 .5 460
POWDER RIVER PASS 9480 2.2 .0 * 1.9 .5 380
SOLDIER PARK 8720 2.6 -M * 2.8 -M *
----- -----
Basin Index (%) * 420*
TONGUE RIVER
BIG GOOSE 7990 -M .0 * -M .6 *
BONE SPRINGS DIV 9350 1.9 .5 380* 1.4 .6 233
BURGESS JUNCTION 7880 1.8 .1 1800* 2.0 .4 500
DOME LAKE 8880 2.3 .0 * 2.6 .6 433
LITTLE GOOSE 8870 3.1 -M * 3.2 -M *
SUCKER CREEK 8880 2.6 .0 * 2.5 .5 500
TIE CREEK 6870 -M .0 * 2.6 .7 371
----- -----
Basin Index (%) 1433* 396
BELLE FOURCHE
COLE CANYON 5910 -M .0 * -M .4 *
----- -----
Basin Index (%) * *
CHEYENNE RIVER BASIN
BLIND PARK 6890 -M .0 * -M .5 *
NORTH RAPID CREEK 6130 -M .0 * -M .5 *
----- -----
Basin Index (%) * *
UPPER N. PLATTE
ARAPAHO RIDGE 10960 1.0 .1 1000* 1.3 .6 217
BLACKHALL MTN 9820 1.1 -M * 1.7 -M *
COLUMBINE 9160 .2 .0 * .7 .5 140
DIVIDE PEAK 8880 1.2 .0 * 1.6 .6 267
JOE WRIGHT 10120 .4 .0 * 1.3 .5 260
LAPRELE CREEK 8375 1.0 .0 * 1.2 .4 300
MED BOW 10500 .9 -M * 1.2 -M *
NORTH FRENCH CREEK 10130 .7 .0 * 1.0 .6 167
NEVER SUMMER 10280 .7 .0 * 1.1 -M *
OLD BATTLE 10000 1.0 .0 * .9 .8 112
RAWAH 9020 1.6 .0 * 1.7 .5 340
SAGE CREEK BASIN 7850 1.4 .0 * 1.4 .5 280
SAND LAKE 10050 1.4 .0 * 1.4 .6 233
SOUTH BRUSH CREEK 8440 .9 .0 * 1.1 .5 220
TOWER 10500 1.1 .0 * 1.0 .8 125
WEBBER SPRINGS 9250 .7 .0 * 1.2 .6 200
WILLOW CREEK PASS 9540 1.2 .0 * 1.1 .2 550
ZIRKEL 9340 .1 .0 * .5 1.0 50
----- -----
Basin Index (%) 14600* 200
SWEETWATER
DEER PARK 9700 2.0 .0 * 1.9 .6 317
LARSEN CREEK 9000 .7 -M * 1.3 -M *
SOUTH PASS 9040 1.6 .0 * 1.9 .5 380
----- -----
Basin Index (%) * 345
LOWER N. PLATTE
CASPER MTN. 7900 -M .0 * 2.3 .4 575
LAPRELE CREEK 8375 1.0 .0 * 1.2 .4 300
RENO HILL 8400 -M .0 * -M .4 *
WINDY PEAK 7900 1.3 .0 * 1.6 .4 400
----- -----
Basin Index (%) * 425
LARAMIE RIVER
BROOKLYN LAKE 10240 .5 .0 * .7 .4 175
CINNABAR PARK 9574 .5 .0 * .9 .5 180
CROW CREEK 8330 .4 .0 * .8 .2 400
DEADMAN HILL 10220 .8 .0 * 1.1 .3 367
RAWAH 9020 1.6 .0 * 1.7 .5 340
ROACH 9700 -M .0 * -M .4 *
----- -----
Basin Index (%) * 274
S. PLATTE
BLACK MOUNTAIN 8920 1.0 -M * 1.0 -M *
CROW CREEK 8330 .4 .0 * .8 .2 400
DEADMAN HILL 10220 .8 .0 * 1.1 .3 367
----- -----
Basin Index (%) * 380
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M .0 * .8 .4 200
DIVIDE PEAK 8880 1.2 .0 * 1.6 .6 267
ELK RIVER 8700 .8 .0 * 1.0 .5 200
LITTLE SNAKE RIVER 8915 .3 .0 * 1.1 .8 138
OLD BATTLE 10000 1.0 .0 * .9 .8 112
SAGE CREEK BASIN 7850 1.4 .0 * 1.4 .5 280
SANDSTONE RS 8150 .7 .0 * .9 .4 225
WHISKEY PARK 8950 .7 .0 * 1.1 .6 183
----- -----
Basin Index (%) * 191
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .8 .0 * .7 .3 233
BLIND BULL SUM 8650 .6 .0 * .6 .4 150
EAST RIM DIVIDE 7930 .1 .0 * .6 .3 200
ELKHART PARK G.S. 9400 .8 .0 * 1.0 .3 333
GROS VENTRE SUMMIT 8750 1.1 .0 * .9 .3 300
GUNSIGHT PASS 9820 1.9 .0 * 1.5 .5 300
KENDALL R.S. 7740 .0 .0 * .6 .3 200
LOOMIS PARK 8240 .1 .0 * .7 .3 233
NEW FORK LAKE 8340 .4 .0 * .4 .3 133
POCKET CREEK 9360 1.5 -M * 1.3 -M *
SNIDER BASIN 8060 .1 .0 * .5 .2 250
SPRING CREEK DIVIDE 9000 .3 .0 * .4 .4 100
TRIPLE PEAK 8500 .0 .0 * .6 .4 150
----- -----
Basin Index (%) * 212
LOWER GREEN RIVER
BLACKS FORK JCT 8870 -M -M * .5 -M *
BUCK PASTURE 9700 .0 -M * .6 -M *
EF BLACKS FORK GS 9360 .0 -M * .4 -M *
HAMS FORK 7840 .0 .0 * .4 .3 133
HEWINTA 9519 .0 .0 * .6 .4 150
HICKERSON PARK 9145 .0 .0 * .6 .4 150
HOLE-IN-ROCK 9150 .0 .0 * .5 .4 125
INDIAN CREEK 9425 .0 .0 * .5 .3 167
KELLEY R.S. 8180 .2 .0 * .4 .3 133
SPIRIT LK 10235 .3 -M * .6 -M *
STEEL CREEK PARK 10200 .0 .0 * .7 .5 140
----- -----
Basin Index (%) * 142
UPPER BEAR RIVER
BEAR RIVER RS 8777 .0 -M * .6 -M *
BUG LAKE 7950 .5 .0 * .8 .4 200
BURTS MILLER RANCH 8000 .4 -M * .3 -M *
CHALK CREEK #1 8993 .8 .0 * 1.2 .6 200
HAYDEN FORK 9212 .1 .0 * .9 .5 180
KELLEY R.S. 8180 .2 .0 * .4 .3 133
LILY LAKE 9156 .0 .0 * .7 .5 140
MONTE CRISTO 8960 .2 .0 * .6 .5 120
SALT RIVER SUMMIT 7760 .0 .0 * .6 .3 200
----- -----
Basin Index (%) * 168
-----------------------------------------------------------------------------
-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.
----------------------------------------------------------------------------
-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.