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 FRIDAY: JUNE 24 , 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* 38.7 28.7 135
COTTONWOOD CREEK 7670 7.3 .0 * 53.7 37.5 143
GRAND TARGHEE 9260 60.7 -M * 61.1 -M *
GRANITE CREEK 6770 .1 .0 * 37.7 26.4 143
GRASSY LAKE 7265 -M .0 * 63.4 47.5 133
GROS VENTRE SUMMIT 8750 .0 .0 100* 25.2 19.4 130
GUNSIGHT PASS 9820 15.0 -M * 30.9 -M *
LEWIS LAKE DIVIDE 7850 17.5 .0 * 55.4 47.6 116
PHILLIPS BENCH 8200 16.7 .0 * 51.0 38.6 132
SALT RIVER SUMMIT 7760 .0 .0 100* 31.4 25.3 124
SNAKE RIVER STATION 6920 -M .0 * 40.6 30.3 134
SPRING CREEK DIVIDE 9000 22.5 .0 * 46.7 34.5 135
THUMB DIVIDE 7980 .2 .0 * 33.5 26.4 127
TOGWOTEE PASS 9580 30.7 8.0 384 49.3 34.6 142
TWO OCEAN PLATEAU 9240 41.4 11.2 370 48.9 38.6 127
WILLOW CREEK 8380 18.1 .0 * 63.4 44.8 142
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Basin wide percent of average 805* 133
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 25.1 5.4 465 39.2 29.2 134
BLACK BEAR 8170 38.3 6.4 598 69.4 52.9 131
CANYON 7870 .0 .0 100* 29.6 22.3 133
FISHER CREEK 9100 -M 12.4 * 59.5 49.7 120
MADISON PLATEAU 7750 9.6 .0 * 50.0 36.4 137
NORTHEAST ENTRANCE 7350 .0 .0 100* 25.8 19.7 131
PARKER PEAK 9400 28.5 5.0 570 44.1 25.6 172
SYLVAN LAKE 8420 11.3 .9 1256* 45.5 31.6 144
THUMB DIVIDE 7980 .2 .0 * 33.5 26.4 127
TWO OCEAN PLATEAU 9240 41.4 11.2 370 48.9 38.6 127
WHISKEY CREEK 6800 .1 .0 * 39.4 29.5 134
WHITE MILL 8700 21.5 4.7 457 43.9 37.8 116
WOLVERINE 7650 -M .0 * 23.1 20.1 115
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Basin wide percent of average 524* 131
WIND RIVER
BURROUGHS CREEK 8750 1.0 .0 * 30.4 24.4 125
CASTLE CREEK 8400 .0 -M * 15.5 -M *
COLD SPRINGS 9630 .1 .2 50* 20.9 19.0 110
DEER PARK 9700 10.1 .1 10100* 35.5 33.1 107
HOBBS PARK 10100 7.4 2.2 336 28.7 23.0 125
LITTLE WARM 9370 .0 .0 100* 24.7 21.8 113
SOUTH PASS 9040 .2 .3 67* 27.1 27.8 97
ST. LAWRENCE ALT 8620 .1 .1 100* 21.1 17.2 123
TOGWOTEE PASS 9580 30.7 8.0 384 49.3 34.6 142
TOWNSEND CREEK 8700 .0 .1 0* 22.8 20.6 111
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Basin wide percent of average 451* 118
BIGHORN BASIN
BALD MTN. 9380 -M 3.2 * 37.7 27.7 136
BEAR TRAP MEADOW 8200 .0 .0 100* 21.3 16.5 129
BLACKWATER 9780 32.0 10.7 299 44.1 31.7 139
BONE SPRINGS DIV 9350 15.8 .4 3950* 33.1 25.0 132
EVENING STAR 9200 27.5 9.8 281 54.7 37.3 147
GRAVE SPRINGS 8550 .0 .0 100* 22.4 18.2 123
KIRWIN 9550 .1 .1 100* 25.3 19.9 127
MARQUETTE 8760 .0 -M * 22.0 20.7 106
MIDDLE POWDER 7760 .0 .0 100* 24.1 21.3 113
OWL CREEK 8975 .0 .0 100* 15.7 13.1 120
POWDER RIVER PASS 9480 -M .0 * 32.7 22.0 149
SHELL CREEK 9580 15.4 .7 2200* 31.9 23.3 137
SYLVAN LAKE 8420 11.3 .9 1256* 45.5 31.6 144
SYLVAN ROAD 7120 .0 .0 100* 33.9 25.3 134
TIMBER CREEK 7950 .1 .0 * 17.5 16.3 107
YOUNTS PEAK 8350 .8 .0 * 27.8 24.2 115
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Basin wide percent of average 456* 131
SHOSHONE RIVER
BLACKWATER 9780 32.0 10.7 299 44.1 31.7 139
EVENING STAR 9200 27.5 9.8 281 54.7 37.3 147
KIRWIN 9550 .1 .1 100* 25.3 19.9 127
MARQUETTE 8760 .0 -M * 22.0 20.7 106
SYLVAN LAKE 8420 11.3 .9 1256* 45.5 31.6 144
SYLVAN ROAD 7120 .0 .0 100* 33.9 25.3 134
YOUNTS PEAK 8350 .8 .0 * 27.8 24.2 115
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Basin wide percent of average 333* 133
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100* 21.3 16.5 129
BIG GOOSE 7990 .1 .0 * 26.5 17.8 149
BONE SPRINGS DIV 9350 15.8 .4 3950* 33.1 25.0 132
BURGESS JUNCTION 7880 .0 .0 100* 27.7 20.7 134
CLOUD PEAK RESERVOIR 9860 5.8 .5 1160* 32.0 24.4 131
DOME LAKE 8880 .0 .0 100* 29.5 22.8 129
GRAVE SPRINGS 8550 .0 .0 100* 22.4 18.2 123
HANSEN SAWMILL 8360 .0 .0 100* 22.0 16.6 133
LITTLE GOOSE 8870 .0 -M * 29.9 -M *
MIDDLE POWDER 7760 .0 .0 100* 24.1 21.3 113
POWDER RIVER PASS 9480 -M .0 * 32.7 22.0 149
SOLDIER PARK 8720 .0 -M * 22.4 -M *
SUCKER CREEK 8880 -M .0 * 33.6 24.1 139
TIE CREEK 6870 .1 .0 * 27.3 19.7 139
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Basin wide percent of average 2422* 133
BELLE FOURCHE
BLIND PARK 6890 .2 .0 * 30.1 20.5 147
COLE CANYON 5910 .1 .0 * 26.7 15.8 169
NORTH RAPID CREEK 6130 .0 .0 100* 26.8 17.2 156
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Basin wide percent of average * 156
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 17.9 -M * 58.6 -M *
CINNABAR PARK 9574 15.6 .0 * 47.8 28.3 169
COLUMBINE 9160 .0 .0 100* 49.4 33.4 148
DIVIDE PEAK 8880 .0 .0 100* 41.7 28.8 145
ELK RIVER 8700 .0 .0 100* 38.1 27.3 140
JOE WRIGHT 10120 25.7 3.1 829 55.9 36.9 151
NORTH FRENCH CREEK 10130 35.1 6.2 566 -M 36.3 *
OLD BATTLE 10000 35.7 5.4 661 68.5 45.9 149
SAGE CREEK BASIN 7850 .0 .0 100* 26.6 16.7 159
SOUTH BRUSH CREEK 8440 .0 .0 100* 33.6 25.3 133
TOWER 10500 51.0 15.8 323 76.2 52.0 147
WEBBER SPRINGS 9250 .0 .1 0* 52.2 36.1 145
WILLOW CREEK PASS 9540 .0 .0 100* 30.8 20.7 149
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Basin wide percent of average 533* 148
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 9.2 1.5 613* 47.9 32.9 146
CASPER MTN. 7900 .0 .4 0* 25.8 25.9 100
DEADMAN HILL 10220 5.3 1.2 442* 35.6 26.2 136
DEER PARK 9700 10.1 .1 10100* 35.5 33.1 107
LAPRELE CREEK 8375 -M .0 * 24.1 21.8 111
RENO HILL 8400 .0 .0 100* 29.5 26.4 112
ROACH 9700 .0 .4 0* 36.8 28.1 131
SAND LAKE 10050 -M 6.5 * 54.2 36.3 149
SOUTH PASS 9040 .2 .3 67* 27.1 27.8 97
WINDY PEAK 7900 .0 .0 100* 21.4 18.8 114
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Basin wide percent of average 636* 122
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M .0 * 26.5 22.0 120
DIVIDE PEAK 8880 .0 .0 100* 41.7 28.8 145
OLD BATTLE 10000 35.7 5.4 661 68.5 45.9 149
SANDSTONE RS 8150 .8 .0 * 37.8 26.1 145
WHISKEY PARK 8950 -M .7 * 60.2 39.5 152
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Basin wide percent of average 676* 145
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 100* 25.3 20.1 126
BLIND BULL SUM 8650 28.9 2.9 997 34.7 29.6 117
EAST RIM DIVIDE 7930 .1 .0 * 21.7 17.3 125
ELKHART PARK G.S. 9400 .0 .0 100* 22.2 20.7 107
GROS VENTRE SUMMIT 8750 .0 .0 100* 25.2 19.4 130
GUNSIGHT PASS 9820 15.0 -M * 30.9 -M *
KENDALL R.S. 7740 .0 .0 100* 24.3 19.9 122
LOOMIS PARK 8240 .1 .0 * 32.1 23.7 135
NEW FORK LAKE 8340 .1 .0 * 18.4 17.4 106
POCKET CREEK 9360 -M -M * 23.5 -M *
SNIDER BASIN 8060 .0 .0 100* 27.3 21.4 128
SPRING CREEK DIVIDE 9000 22.5 .0 * 46.7 34.5 135
TRIPLE PEAK 8500 8.5 .0 * 49.5 33.6 147
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Basin wide percent of average 2076* 127
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 23.8 18.2 131
HEWINTA 9519 .0 .0 100* 29.0 21.6 134
HICKERSON PARK 9145 .0 .0 100* 19.8 13.8 143
HOLE-IN-ROCK 9150 .2 .0 * 20.8 13.6 153
INDIAN CREEK 9425 19.2 .0 * 39.9 33.9 118
KELLEY R.S. 8180 .0 .0 100* 35.5 27.5 129
STEEL CREEK PARK 10200 13.1 1.6 819* 33.6 24.7 136
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Basin wide percent of average 2031* 132
UPPER BEAR RIVER
BUG LAKE 7950 .0 .0 100* 43.1 26.4 163
HAYDEN FORK 9212 .0 .0 100* 43.7 30.0 146
KELLEY R.S. 8180 .0 .0 100* 35.5 27.5 129
LILY LAKE 9156 .0 .0 100* 34.9 25.5 137
MONTE CRISTO 8960 24.5 .5 4900* 55.6 35.5 157
SALT RIVER SUMMIT 7760 .0 .0 100* 31.4 25.3 124
TRIAL LAKE 9992 22.6 2.3 983* 48.8 35.1 139
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Basin wide percent of average 1682* 143
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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.