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: JUNE 18 , 1998
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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 .1 .0 * 28.7 28.9 99
COTTONWOOD CREEK 7600 .1 .0 * 33.9 32.1 106
GRANITE CREEK 6770 .0 .0 100* 28.7 31.1 92
GRASSY LAKE 7265 -M .0 * 47.5 47.8 99
GROS VENTRE SUMMIT 8775 -M .0 * 21.0 21.0 100
LEWIS LAKE DIVIDE 7860 1.0 .0 * 41.1 48.6 85
PHILLIPS BENCH 8200 9.2 .0 * 35.5 38.3 93
SALT RIVER SUMMIT 7600 .1 .0 * 28.2 22.3 126
SNAKE RIVER STATION 6920 .0 .0 100* 30.9 33.6 92
SPRING CREEK DIVIDE 9000 7.3 .0 * 30.9 34.8 89
THUMB DIVIDE 7980 .0 .0 100* 26.0 27.0 96
TOGWOTEE PASS 9580 18.5 10.9 170 33.5 36.5 92
TWO OCEAN PLATEAU 9360 19.9 12.8 155 36.9 39.8 93
WILLOW CREEK 8450 .1 .0 * 45.2 41.3 109
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Basin wide percent of average 162* 97
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 6.6 8.0 82 22.4 26.4 85
BLACK BEAR 7950 22.3 11.5 194 49.0 52.8 93
CANYON 7940 .0 .2 0* 20.7 20.4 101
FISHER CREEK 9100 21.5 18.5 116 37.5 49.2 76
MADISON PLATEAU 7750 .1 .3 33* 33.3 35.0 95
NORTHEAST ENTRANCE 7350 .0 .0 100* 16.4 17.9 92
PARKER PEAK 9400 6.3 9.8 64 23.8 23.3 102
SYLVAN LAKE 8420 .0 4.9 0 30.3 28.1 108
THUMB DIVIDE 7980 .0 .0 100* 26.0 27.0 96
TWO OCEAN PLATEAU 9360 19.9 12.8 155 36.9 39.8 93
WHISKEY CREEK 6800 .0 .0 100* 29.0 29.3 99
WHITE MILL 8700 10.0 9.2 109 28.6 38.4 74
WOLVERINE 7650 .0 .0 100* 14.4 19.5 74
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Basin wide percent of average 115 90
WIND RIVER
BURROUGHS CREEK 8750 .2 .0 * 26.1 23.5 111
COLD SPRINGS 9630 -M .0 * 21.3 17.2 124
DEER PARK 9700 -M -M * -M -M *
HOBBS PARK 10100 -M 2.9 * 26.5 22.1 120
LITTLE WARM 9620 .0 .0 100* 21.3 20.4 104
SOUTH PASS 9040 1.4 3.2 44 -M 25.3 *
ST. LAWRENCE ALT 8620 .9 .0 * 18.9 15.9 119
TOGWOTEE PASS 9580 18.5 10.9 170 33.5 36.5 92
TOWNSEND CREEK 8700 -M .0 * 24.1 19.8 122
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Basin wide percent of average 141* 110
BIGHORN BASIN
BALD MTN. 9375 11.8 7.8 151 25.4 26.7 95
BEAR TRAP MEADOW 7900 .0 .0 100* 16.6 15.3 108
BLACKWATER 9780 15.5 6.8 228 26.7 26.2 102
BONE SPRINGS DIV 9350 1.5 2.0 75 24.3 23.9 102
EVENING STAR 9200 10.2 13.3 77 33.6 32.3 104
GRAVE SPRINGS 8550 -M -M * 19.2 17.9 107
KIRWIN 9550 .6 .7 86* 20.9 17.5 119
MARQUETTE 8760 1.3 .7 186* 23.1 18.8 123
MIDDLE POWDER 7760 -M .0 * 17.9 19.8 90
OWL CREEK 8975 .1 .0 * 14.7 11.8 125
POWDER RIVER PASS 9480 -M .0 * 20.3 19.8 103
SHELL CREEK 9580 .0 3.2 0 17.4 21.7 80
SYLVAN LAKE 8420 .0 4.9 0 30.3 28.1 108
SYLVAN ROAD 8120 .1 .0 * 20.0 23.6 85
TIMBER CREEK 7950 .0 .0 100* 17.7 15.0 118
YOUNTS PEAK 8350 .0 1.6 0* 22.1 23.7 93
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Basin wide percent of average 100* 102
SHOSHONE RIVER
BLACKWATER 9780 15.5 6.8 228 26.7 26.2 102
EVENING STAR 9200 10.2 13.3 77 33.6 32.3 104
KIRWIN 9550 .6 .7 86* 20.9 17.5 119
MARQUETTE 8760 1.3 .7 186* 23.1 18.8 123
SYLVAN LAKE 8420 .0 4.9 0 30.3 28.1 108
SYLVAN ROAD 8120 .1 .0 * 20.0 23.6 85
YOUNTS PEAK 8350 .0 1.6 0* 22.1 23.7 93
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Basin wide percent of average 99* 104
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 16.6 15.3 108
BONE SPRINGS DIV 9350 1.5 2.0 75 24.3 23.9 102
BURGESS JUNCTION 7880 .0 .0 100* 18.7 19.1 98
CLOUD PEAK RESERVOIR 9860 .2 2.6 8 24.8 23.1 107
DOME LAKE 8880 .1 .7 14* 20.7 21.6 96
GRAVE SPRINGS 8550 -M -M * 19.2 17.9 107
HANSEN SAWMILL 8760 .0 .0 100* 17.9 14.7 122
MIDDLE POWDER 7760 -M .0 * 17.9 19.8 90
POWDER RIVER PASS 9480 -M .0 * 20.3 19.8 103
SUCKER CREEK 8880 .0 .1 0* 21.3 22.2 96
TIE CREEK 6870 .0 -M * 21.7 18.3 119
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Basin wide percent of average 33* 104
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 19.1 20.5 93
NORTH RAPID CREEK 6130 .0 -M * 17.4 -M *
WARREN PEAK 6520 .0 .0 100* 16.0 15.2 105
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Basin wide percent of average * 98
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 29.8 31.7 94
DIVIDE PEAK 8800 -M .2 * 28.3 31.5 90
ELK RIVER 8700 .2 .0 * 27.5 25.5 108
JOE WRIGHT 10120 5.4 6.1 89 35.1 36.3 97
NORTH FRENCH CREEK 10100 16.9 10.4 162 41.4 33.4 124
OLD BATTLE 10000 16.5 8.0 206 47.0 40.9 115
SOUTH BRUSH CREEK 8400 .8 .0 * 20.0 24.7 81
TOWER 10500 -M 24.2 * 54.7 50.6 108
WEBBER SPRINGS 9200 .8 1.6 50* 34.9 34.8 100
WILLOW CREEK PASS 9540 .0 .0 100* 14.5 19.5 74
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Basin wide percent of average 152* 101
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .2 3.2 6 31.4 28.1 112
CASPER MTN. 7900 .7 .7 100* 17.4 24.4 71
DEADMAN HILL 10220 .1 3.1 3 22.4 25.8 87
DEER PARK 9700 -M -M * -M -M *
LAPRELE CREEK 8320 .3 .0 * 15.5 19.5 79
RENO HILL 8400 -M .6 * 15.4 25.7 60
ROACH 9700 .4 .9 44* 25.9 31.3 83
SAND LAKE 10080 -M 11.4 * 34.8 29.8 117
SOUTH PASS 9040 1.4 3.2 44 -M 25.3 *
WINDY PEAK 7840 .0 .0 100* 15.0 17.0 88
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Basin wide percent of average 25* 88
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 22.0 21.4 103
DIVIDE PEAK 8800 -M .2 * 28.3 31.5 90
OLD BATTLE 10000 16.5 8.0 206 47.0 40.9 115
SANDSTONE RS 8150 .2 .0 * 26.5 26.6 100
WHISKEY PARK 8950 -M .2 * 40.1 39.0 103
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Basin wide percent of average 206* 103
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.0 21.5 102
BLIND BULL SUM 8650 6.9 7.2 96 27.5 30.4 90
EAST RIM DIVIDE 7930 .0 .0 100* 18.4 20.1 92
ELKHART PARK G.S. 9400 .0 .0 100* 22.6 21.1 107
GROS VENTRE SUMMIT 8775 -M .0 * 21.0 21.0 100
KENDALL R.S. 7740 .0 .0 100* 21.7 20.6 105
LOOMIS PARK 8240 -M .0 * 25.6 24.9 103
NEW FORK LAKE 8340 .1 .0 * 19.3 19.1 101
SNIDER BASIN 8250 .3 .0 * 19.0 20.1 95
SPRING CREEK DIVIDE 9000 7.3 .0 * 30.9 34.8 89
TRIPLE PEAK 8500 .0 .0 100* 30.4 40.2 76
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Basin wide percent of average 96* 94
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 19.1 17.6 109
HEWINTA 9500 -M .0 * 20.8 20.1 103
HICKERSON PARK 9150 -M .0 * 22.0 16.3 135
HOLE-IN-ROCK 9150 -M .0 * 19.9 16.3 122
INDIAN CREEK 9425 11.9 .0 * 29.3 33.4 88
KELLEY R.S. 8180 .0 .0 100* 25.7 24.8 104
STEEL CREEK PARK 10100 13.8 2.9 476 27.8 21.8 128
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Basin wide percent of average 476* 110
UPPER BEAR RIVER
BUG LAKE 7950 -M .0 * 31.6 25.8 122
HAYDEN FORK 9400 -M .0 * 31.5 27.4 115
KELLEY R.S. 8180 .0 .0 100* 25.7 24.8 104
LILY LAKE 9050 -M .0 * 28.7 22.2 129
MONTE CRISTO 8960 -M 3.1 * 39.8 34.8 114
SALT RIVER SUMMIT 7600 .1 .0 * 28.2 22.3 126
TRIAL LAKE 9960 -M 3.2 * 34.4 32.8 105
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Basin wide percent of average * 116
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-M = Missing data
* = Data may not provide a valid measure of conditions.
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.
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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.