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: JUNE 19 , 2011
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 .0 .0 100* 38.9 28.4 137
COTTONWOOD CREEK 7670 14.7 .0 * 53.3 37.2 143
GRAND TARGHEE 9260 65.7 -M * 60.6 -M *
GRANITE CREEK 6770 .1 .0 * 36.8 26.2 140
GRASSY LAKE 7265 -M .0 * 63.1 47.1 134
GROS VENTRE SUMMIT 8750 .9 .0 * 24.8 19.0 131
GUNSIGHT PASS 9820 19.0 -M * 30.0 -M *
LEWIS LAKE DIVIDE 7850 26.4 2.7 978* 55.2 47.2 117
PHILLIPS BENCH 8200 23.0 2.0 1150* 50.5 38.2 132
SALT RIVER SUMMIT 7760 .0 .0 100* 31.2 25.1 124
SNAKE RIVER STATION 6920 -M .0 * 40.6 29.9 136
SPRING CREEK DIVIDE 9000 28.7 1.6 1794* 46.5 34.2 136
THUMB DIVIDE 7980 .2 .0 * 33.3 26.1 128
TOGWOTEE PASS 9580 35.0 11.4 307 49.0 34.2 143
TWO OCEAN PLATEAU 9240 48.0 14.7 327 48.6 38.2 127
WILLOW CREEK 8380 24.6 .0 * 62.7 44.4 141
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Basin wide percent of average 622* 133
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 28.3 8.8 322 39.1 28.8 136
BLACK BEAR 8170 46.6 10.5 444 69.3 52.5 132
CANYON 7870 .0 .1 0* 29.3 21.9 134
FISHER CREEK 9100 -M 17.6 * 59.3 49.1 121
MADISON PLATEAU 7750 17.0 .3 5667* 49.9 36.0 139
NORTHEAST ENTRANCE 7350 .0 .0 100* 25.3 19.2 132
PARKER PEAK 9400 33.0 8.0 413 43.9 25.1 175
SYLVAN LAKE 8420 17.3 2.8 618 45.4 31.2 146
THUMB DIVIDE 7980 .2 .0 * 33.3 26.1 128
TWO OCEAN PLATEAU 9240 48.0 14.7 327 48.6 38.2 127
WHISKEY CREEK 6800 .4 .0 * 38.8 29.1 133
WHITE MILL 8700 26.7 7.8 342 43.5 37.3 117
WOLVERINE 7650 -M .0 * 23.2 19.7 118
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Basin wide percent of average 410* 133
WIND RIVER
BURROUGHS CREEK 8750 7.4 .2 3700* 29.8 24.1 124
CASTLE CREEK 8400 .0 -M * 15.3 -M *
COLD SPRINGS 9630 .1 .0 * 20.5 18.7 110
DEER PARK 9700 13.5 3.1 435 35.0 32.7 107
HOBBS PARK 10100 12.3 3.5 351 28.0 22.6 124
LITTLE WARM 9370 .1 .0 * 24.0 21.5 112
SOUTH PASS 9040 1.2 1.5 80* 26.5 27.4 97
ST. LAWRENCE ALT 8620 .1 .0 * 20.6 16.8 123
TOGWOTEE PASS 9580 35.0 11.4 307 49.0 34.2 143
TOWNSEND CREEK 8700 .0 .1 0* 22.8 20.3 112
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Basin wide percent of average 352* 117
BIGHORN BASIN
BALD MTN. 9380 32.5 5.8 560 37.1 27.3 136
BEAR TRAP MEADOW 8200 .0 .0 100* 20.8 16.1 129
BLACKWATER 9780 35.7 14.6 245 43.5 31.2 139
BONE SPRINGS DIV 9350 22.4 1.5 1493* 32.6 24.5 133
EVENING STAR 9200 32.6 13.8 236 54.4 36.7 148
GRAVE SPRINGS 8550 .0 .0 100* 21.7 17.8 122
KIRWIN 9550 5.7 .6 950* 25.2 19.5 129
MARQUETTE 8760 1.1 -M * 21.2 20.2 105
MIDDLE POWDER 7760 .0 .0 100* 23.2 20.9 111
OWL CREEK 8975 .0 .0 100* 15.5 12.8 121
POWDER RIVER PASS 9480 9.3 .0 * 32.5 21.6 150
SHELL CREEK 9580 19.6 2.4 817 31.7 22.7 140
SYLVAN LAKE 8420 17.3 2.8 618 45.4 31.2 146
SYLVAN ROAD 7120 .0 .0 100* 33.6 24.9 135
TIMBER CREEK 7950 .3 .0 * 16.7 16.0 104
YOUNTS PEAK 8350 6.1 .2 3050* 27.5 23.7 116
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Basin wide percent of average 435* 131
SHOSHONE RIVER
BLACKWATER 9780 35.7 14.6 245 43.5 31.2 139
EVENING STAR 9200 32.6 13.8 236 54.4 36.7 148
KIRWIN 9550 5.7 .6 950* 25.2 19.5 129
MARQUETTE 8760 1.1 -M * 21.2 20.2 105
SYLVAN LAKE 8420 17.3 2.8 618 45.4 31.2 146
SYLVAN ROAD 7120 .0 .0 100* 33.6 24.9 135
YOUNTS PEAK 8350 6.1 .2 3050* 27.5 23.7 116
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Basin wide percent of average 304* 134
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100* 20.8 16.1 129
BIG GOOSE 7990 .0 .0 100* 26.0 17.6 148
BONE SPRINGS DIV 9350 22.4 1.5 1493* 32.6 24.5 133
BURGESS JUNCTION 7880 .0 .0 100* 27.3 20.3 134
CLOUD PEAK RESERVOIR 9860 12.3 1.6 769* 31.7 23.9 133
DOME LAKE 8880 .2 .2 100* 28.8 22.4 129
GRAVE SPRINGS 8550 .0 .0 100* 21.7 17.8 122
HANSEN SAWMILL 8360 .2 .0 * 21.7 16.2 134
LITTLE GOOSE 8870 2.5 -M * 29.5 -M *
MIDDLE POWDER 7760 .0 .0 100* 23.2 20.9 111
POWDER RIVER PASS 9480 9.3 .0 * 32.5 21.6 150
SOLDIER PARK 8720 .0 -M * 22.2 -M *
SUCKER CREEK 8880 -M .1 * 33.0 23.6 140
TIE CREEK 6870 .1 .0 * 26.8 19.3 139
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Basin wide percent of average 1348* 134
BELLE FOURCHE
BLIND PARK 6890 .1 .0 * 30.0 20.0 150
COLE CANYON 5910 .0 .0 100* 26.3 15.3 172
NORTH RAPID CREEK 6130 .0 .0 100* 26.0 16.5 158
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Basin wide percent of average * 159
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 24.4 -M * 58.0 -M *
CINNABAR PARK 9574 17.6 .0 * 49.9 28.0 178
COLUMBINE 9160 .2 .0 * 49.3 33.2 148
DIVIDE PEAK 8880 .0 .0 100* 41.3 28.6 144
ELK RIVER 8700 .1 .0 * 38.0 27.1 140
JOE WRIGHT 10120 31.7 5.2 610 55.1 36.5 151
NORTH FRENCH CREEK 10130 41.1 9.6 428 -M 35.9 *
OLD BATTLE 10000 -M 9.7 * 67.8 45.6 149
SAGE CREEK BASIN 7850 .0 .0 100* 26.2 16.6 158
SOUTH BRUSH CREEK 8440 .0 .0 100* 33.3 25.0 133
TOWER 10500 56.7 21.7 261 75.9 51.6 147
WEBBER SPRINGS 9250 4.6 .7 657* 51.5 35.9 143
WILLOW CREEK PASS 9540 -M .1 * 30.1 20.4 148
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Basin wide percent of average 409* 149
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 15.7 2.6 604* 47.6 32.5 146
CASPER MTN. 7900 .0 .7 0* 23.4 25.6 91
DEADMAN HILL 10220 9.5 2.4 396 35.1 25.9 136
DEER PARK 9700 13.5 3.1 435 35.0 32.7 107
LAPRELE CREEK 8375 .0 .0 100* 22.4 21.5 104
RENO HILL 8400 .0 .4 0* 27.8 26.1 107
ROACH 9700 .1 .9 11* 36.0 27.8 129
SAND LAKE 10050 -M 9.9 * 53.5 36.0 149
SOUTH PASS 9040 1.2 1.5 80* 26.5 27.4 97
WINDY PEAK 7900 .0 .0 100* 20.8 18.5 112
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Basin wide percent of average 345* 120
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M .0 * 26.2 21.8 120
DIVIDE PEAK 8880 .0 .0 100* 41.3 28.6 144
OLD BATTLE 10000 -M 9.7 * 67.8 45.6 149
SANDSTONE RS 8150 .4 .0 * 37.7 25.9 146
WHISKEY PARK 8950 -M 1.9 * 60.0 39.3 153
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Basin wide percent of average * 145
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 100* 24.9 19.9 125
BLIND BULL SUM 8650 33.8 6.4 528 34.4 29.3 117
EAST RIM DIVIDE 7930 .0 .0 100* 21.2 17.1 124
ELKHART PARK G.S. 9400 .0 .0 100* 21.3 20.4 104
GROS VENTRE SUMMIT 8750 .9 .0 * 24.8 19.0 131
GUNSIGHT PASS 9820 19.0 -M * 30.0 -M *
KENDALL R.S. 7740 .1 .0 * 23.9 19.7 121
LOOMIS PARK 8240 .2 .0 * 32.1 23.5 137
NEW FORK LAKE 8340 .1 .0 * 17.9 17.1 105
POCKET CREEK 9360 1.1 -M * 23.2 -M *
SNIDER BASIN 8060 .0 .0 100* 27.2 21.3 128
SPRING CREEK DIVIDE 9000 28.7 1.6 1794* 46.5 34.2 136
TRIPLE PEAK 8500 15.0 .0 * 49.3 33.3 148
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Basin wide percent of average 985* 127
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 24.3 18.0 135
HEWINTA 9519 .0 .0 100* 28.7 21.4 134
HICKERSON PARK 9145 .0 .0 100* 19.1 13.6 140
HOLE-IN-ROCK 9150 .2 .0 * 20.4 13.3 153
INDIAN CREEK 9425 25.4 2.8 907* 39.6 33.7 118
KELLEY R.S. 8180 .4 .0 * 35.0 27.3 128
STEEL CREEK PARK 10200 17.2 3.2 538 33.2 24.4 136
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Basin wide percent of average 720* 132
UPPER BEAR RIVER
BUG LAKE 7950 6.7 .0 * 42.8 26.2 163
HAYDEN FORK 9212 .0 .0 100* 43.0 29.8 144
KELLEY R.S. 8180 .4 .0 * 35.0 27.3 128
LILY LAKE 9156 .0 .0 100* 34.4 25.3 136
MONTE CRISTO 8960 34.3 2.0 1715* 55.2 35.3 156
SALT RIVER SUMMIT 7760 .0 .0 100* 31.2 25.1 124
TRIAL LAKE 9992 31.6 4.4 718 48.2 34.8 139
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Basin wide percent of average 1141* 142
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-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.
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-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.