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 THURSDAY: JULY 31 , 2008
-----------------------------------------------------------------------------
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 35.3 30.3 117
COTTONWOOD CREEK 7670 .0 .0 100 -M 39.1 *
GRAND TARGHEE 9260 .0 -M * 49.1 -M *
GRANITE CREEK 6770 .0 .0 100 32.3 27.9 116
GRASSY LAKE 7265 .0 .0 100 57.5 49.7 116
GROS VENTRE SUMMIT 8750 .1 .0 20.1 21.3 94
GUNSIGHT PASS 9820 .2 -M * 21.3 -M *
LEWIS LAKE DIVIDE 7850 .0 .0 100 48.9 49.6 99
PHILLIPS BENCH 8200 .0 .0 100 45.3 40.2 113
SALT RIVER SUMMIT 7760 .0 .0 100 22.1 26.6 83
SNAKE RIVER STATION 6920 .0 .0 100 36.8 32.1 115
SPRING CREEK DIVIDE 9000 -M .0 * 32.1 36.0 89
THUMB DIVIDE 7980 .1 .0 29.7 27.9 106
TOGWOTEE PASS 9580 .0 .0 100 41.6 36.8 113
TWO OCEAN PLATEAU 9240 .1 .0 45.1 41.1 110
WILLOW CREEK 8380 .0 .0 100 53.5 47.0 114
----- -----
Basin wide percent of average * 107
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 .0 .0 100 34.8 31.8 109
BLACK BEAR 8170 .0 .0 100 57.9 55.3 105
CANYON 7870 .0 .0 100 28.7 24.3 118
FISHER CREEK 9100 .1 .0 53.7 53.1 101
MADISON PLATEAU 7750 .1 .0 45.1 38.5 117
NORTHEAST ENTRANCE 7350 .2 .0 22.5 22.2 101
PARKER PEAK 9400 .0 .0 100 40.7 27.7 147
SYLVAN LAKE 8420 .0 .0 100 40.8 34.0 120
THUMB DIVIDE 7980 .1 .0 29.7 27.9 106
TWO OCEAN PLATEAU 9240 .1 .0 45.1 41.1 110
WHISKEY CREEK 6800 .0 .0 100 -M 31.5 *
WHITE MILL 8700 .1 .0 39.4 40.8 97
WOLVERINE 7650 .0 .0 100 23.0 22.2 104
----- -----
Basin wide percent of average * 110
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100 26.9 26.2 103
COLD SPRINGS 9630 .1 .0 18.5 20.8 89
DEER PARK 9700 .0 .0 100 31.4 34.8 90
HOBBS PARK 10100 .0 .0 100 25.8 25.0 103
LITTLE WARM 9370 .0 .0 100 23.4 23.9 98
SOUTH PASS 9040 .1 .0 27.8 29.2 95
ST. LAWRENCE ALT 8620 .0 .0 100 17.3 18.8 92
TOGWOTEE PASS 9580 .0 .0 100 41.6 36.8 113
TOWNSEND CREEK 8700 .0 .0 100 22.4 22.4 100
----- -----
Basin wide percent of average * 99
BIGHORN BASIN
BALD MTN. 9380 .1 .0 29.3 30.3 97
BEAR TRAP MEADOW 8200 .0 .0 100 22.7 18.5 123
BLACKWATER 9780 .0 .0 100 38.5 34.5 112
BONE SPRINGS DIV 9350 .0 .0 100 30.6 27.7 110
EVENING STAR 9200 .0 .0 100 51.5 40.3 128
GRAVE SPRINGS 8550 .0 .0 100 19.9 20.5 97
KIRWIN 9550 .0 .0 100 24.2 22.9 106
MARQUETTE 8760 .0 .0 100 23.4 23.2 101
MIDDLE POWDER 7760 .0 .0 100 20.3 23.4 87
OWL CREEK 8975 .1 .0 14.8 15.1 98
POWDER RIVER PASS 9480 .0 .0 100 28.2 24.1 117
SHELL CREEK 9580 .0 .0 100 28.5 25.7 111
SYLVAN LAKE 8420 .0 .0 100 40.8 34.0 120
SYLVAN ROAD 7120 .0 .0 100 31.6 27.3 116
TIMBER CREEK 7950 .1 .0 20.5 18.3 112
YOUNTS PEAK 8350 .2 .0 26.2 26.9 97
----- -----
Basin wide percent of average * 109
SHOSHONE RIVER
BLACKWATER 9780 .0 .0 100 38.5 34.5 112
EVENING STAR 9200 .0 .0 100 51.5 40.3 128
KIRWIN 9550 .0 .0 100 24.2 22.9 106
MARQUETTE 8760 .0 .0 100 23.4 23.2 101
SYLVAN LAKE 8420 .0 .0 100 40.8 34.0 120
SYLVAN ROAD 7120 .0 .0 100 31.6 27.3 116
YOUNTS PEAK 8350 .2 .0 26.2 26.9 97
----- -----
Basin wide percent of average * 113
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100 22.7 18.5 123
BIG GOOSE 7990 .0 .0 100 24.4 19.7 124
BONE SPRINGS DIV 9350 .0 .0 100 30.6 27.7 110
BURGESS JUNCTION 7880 .0 .0 100 27.8 23.4 119
CLOUD PEAK RESERVOIR 9860 .0 .0 100 33.3 27.1 123
DOME LAKE 8880 .0 .0 100 29.3 25.1 117
GRAVE SPRINGS 8550 .0 .0 100 19.9 20.5 97
HANSEN SAWMILL 8360 .0 .0 100 25.0 18.9 132
MIDDLE POWDER 7760 .0 .0 100 20.3 23.4 87
POWDER RIVER PASS 9480 .0 .0 100 28.2 24.1 117
SUCKER CREEK 8880 .0 .0 100 32.3 26.5 122
TIE CREEK 6870 .0 .0 100 25.0 21.4 117
----- -----
Basin wide percent of average * 115
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100 26.8 23.8 113
COLE CANYON 5910 .4 .0 26.0 19.1 136
NORTH RAPID CREEK 6130 .0 .0 100 32.6 22.1 148
----- -----
Basin wide percent of average * 131
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 .0 100 37.8 35.1 108
DIVIDE PEAK 8880 .0 .0 100 32.1 30.3 106
ELK RIVER 8700 -M .0 * 31.0 29.0 107
JOE WRIGHT 10120 -M .0 * 41.5 39.7 105
NORTH FRENCH CREEK 10130 .0 .0 100 41.7 38.8 107
OLD BATTLE 10000 .0 .0 100 -M 47.7 *
SAGE CREEK BASIN 7850 .0 .0 100 23.0 17.6 131
SOUTH BRUSH CREEK 8440 .0 .0 100 23.5 27.4 86
TOWER 10500 -M .0 * 54.5 54.1 101
WEBBER SPRINGS 9250 .0 .0 100 -M 37.9 *
WILLOW CREEK PASS 9540 .3 .0 24.3 22.8 107
----- -----
Basin wide percent of average * 105
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 .0 100 32.1 35.1 91
CASPER MTN. 7900 .0 .0 100 30.7 27.5 112
DEADMAN HILL 10220 .3 .0 28.9 28.0 103
DEER PARK 9700 .0 .0 100 31.4 34.8 90
LAPRELE CREEK 8375 -M .0 * -M 23.9 *
RENO HILL 8400 .0 .0 100 33.2 28.1 118
ROACH 9700 .0 .0 100 32.4 30.0 108
SAND LAKE 10050 -M .0 * 43.5 38.4 113
SOUTH PASS 9040 .1 .0 27.8 29.2 95
WINDY PEAK 7900 .4 .0 19.9 20.9 95
----- -----
Basin wide percent of average * 103
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 -M 23.1 *
DIVIDE PEAK 8880 .0 .0 100 32.1 30.3 106
OLD BATTLE 10000 .0 .0 100 -M 47.7 *
SANDSTONE RS 8150 -M .0 * -M 27.6 *
WHISKEY PARK 8950 .0 .0 100 46.8 41.5 113
----- -----
Basin wide percent of average * 110*
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 100 20.1 21.7 93
BLIND BULL SUM 8650 .0 .0 100 25.3 31.1 81
EAST RIM DIVIDE 7930 .0 .0 100 15.7 18.5 85
ELKHART PARK G.S. 9400 .1 .0 17.5 22.3 78
GROS VENTRE SUMMIT 8750 .1 .0 20.1 21.3 94
GUNSIGHT PASS 9820 .2 -M * 21.3 -M *
KENDALL R.S. 7740 .0 .0 100 18.6 21.3 87
LOOMIS PARK 8240 .0 .0 100 23.7 25.3 94
NEW FORK LAKE 8340 .1 .0 14.6 18.9 77
SNIDER BASIN 8060 .0 .0 100 19.7 22.5 88
SPRING CREEK DIVIDE 9000 -M .0 * 32.1 36.0 89
TRIPLE PEAK 8500 .0 .0 100 39.3 35.2 112
----- -----
Basin wide percent of average * 90
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100 15.9 19.5 82
HEWINTA 9519 .0 .0 100 27.3 23.9 114
HICKERSON PARK 9145 .0 .0 100 18.0 15.7 115
HOLE-IN-ROCK 9150 .0 .0 100 16.7 15.5 108
INDIAN CREEK 9425 .0 .0 100 31.2 35.2 89
KELLEY R.S. 8180 .0 .0 100 24.5 28.7 85
STEEL CREEK PARK 10200 .7 .0 29.1 26.9 108
----- -----
Basin wide percent of average * 98
UPPER BEAR RIVER
BUG LAKE 7950 .0 .0 100 23.5 27.4 86
HAYDEN FORK 9212 .0 .0 100 31.5 31.7 99
KELLEY R.S. 8180 .0 .0 100 24.5 28.7 85
LILY LAKE 9156 .0 .0 100 25.5 27.0 94
MONTE CRISTO 8960 .0 .0 100 33.4 36.7 91
SALT RIVER SUMMIT 7760 .0 .0 100 22.1 26.6 83
TRIAL LAKE 9992 -M .0 * 32.4 37.0 88
----- -----
Basin wide percent of average * 90
-----------------------------------------------------------------------------
-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.