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 19 , 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 .0 .0 100* 28.8 28.9 100
COTTONWOOD CREEK 7600 .0 .0 100* 34.0 32.2 106
GRANITE CREEK 6770 .1 .0 * 28.9 31.2 93
GRASSY LAKE 7265 .0 .0 100* 47.8 47.9 100
GROS VENTRE SUMMIT 8775 -M .0 * 21.0 21.1 100
LEWIS LAKE DIVIDE 7860 .1 .0 * 41.4 48.7 85
PHILLIPS BENCH 8200 8.7 .0 * 35.6 38.4 93
SALT RIVER SUMMIT 7600 .0 .0 100* 28.4 22.4 127
SNAKE RIVER STATION 6920 .0 .0 100* 30.9 33.6 92
SPRING CREEK DIVIDE 9000 7.0 .0 * 30.9 34.9 89
THUMB DIVIDE 7980 .1 .0 * 26.1 27.1 96
TOGWOTEE PASS 9580 18.1 10.1 179 33.6 36.6 92
TWO OCEAN PLATEAU 9360 19.7 11.8 167 37.0 39.8 93
WILLOW CREEK 8450 .1 .0 * 45.2 41.4 109
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Basin wide percent of average 173* 97
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 6.2 7.6 82 22.7 26.5 86
BLACK BEAR 7950 22.0 10.7 206 49.3 52.9 93
CANYON 7940 .0 .2 0* 21.0 20.5 102
FISHER CREEK 9100 21.4 17.5 122 37.6 49.3 76
MADISON PLATEAU 7750 .2 .3 67* 33.9 35.1 97
NORTHEAST ENTRANCE 7350 .0 .0 100* 16.7 18.0 93
PARKER PEAK 9400 6.4 9.3 69 24.2 23.4 103
SYLVAN LAKE 8420 .0 4.5 0 30.6 28.2 109
THUMB DIVIDE 7980 .1 .0 * 26.1 27.1 96
TWO OCEAN PLATEAU 9360 19.7 11.8 167 37.0 39.8 93
WHISKEY CREEK 6800 .0 .0 100* 29.3 29.4 100
WHITE MILL 8700 9.6 8.7 110 28.9 38.5 75
WOLVERINE 7650 .0 .0 100* 14.4 19.5 74
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Basin wide percent of average 121 91
WIND RIVER
BURROUGHS CREEK 8750 .2 .0 * 26.1 23.5 111
COLD SPRINGS 9630 .6 .0 * 21.4 17.3 124
DEER PARK 9700 -M -M * 31.4 -M *
HOBBS PARK 10100 10.0 2.7 370 26.6 22.2 120
LITTLE WARM 9620 .0 .0 100* 21.4 20.4 105
SOUTH PASS 9040 .9 2.9 31 27.5 25.4 108
ST. LAWRENCE ALT 8620 .1 .0 * 19.6 15.9 123
TOGWOTEE PASS 9580 18.1 10.1 179 33.6 36.6 92
TOWNSEND CREEK 8700 1.3 .0 * 24.1 19.9 121
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Basin wide percent of average 185* 111
BIGHORN BASIN
BALD MTN. 9375 11.7 7.3 160 25.6 26.7 96
BEAR TRAP MEADOW 7900 .0 .0 100* 17.1 15.4 111
BLACKWATER 9780 15.6 6.5 240 27.0 26.3 103
BONE SPRINGS DIV 9350 -M 1.9 * -M 24.0 *
EVENING STAR 9200 10.2 12.8 80 34.4 32.5 106
GRAVE SPRINGS 8550 .0 -M * 19.3 18.0 107
KIRWIN 9550 .3 .7 43* 21.1 17.6 120
MARQUETTE 8760 .9 .6 150* 23.2 18.9 123
MIDDLE POWDER 7760 .0 .0 100* 18.2 19.9 91
OWL CREEK 8975 .0 .0 100* 15.0 11.8 127
POWDER RIVER PASS 9480 .0 .0 100* 20.8 19.9 105
SHELL CREEK 9580 -M 3.0 * 17.8 21.8 82
SYLVAN LAKE 8420 .0 4.5 0 30.6 28.2 109
SYLVAN ROAD 8120 .1 .0 * 20.3 23.7 86
TIMBER CREEK 7950 .0 .0 100* 17.7 15.1 117
YOUNTS PEAK 8350 .0 1.5 0* 22.0 23.8 92
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Basin wide percent of average 114* 103
SHOSHONE RIVER
BLACKWATER 9780 15.6 6.5 240 27.0 26.3 103
EVENING STAR 9200 10.2 12.8 80 34.4 32.5 106
KIRWIN 9550 .3 .7 43* 21.1 17.6 120
MARQUETTE 8760 .9 .6 150* 23.2 18.9 123
SYLVAN LAKE 8420 .0 4.5 0 30.6 28.2 109
SYLVAN ROAD 8120 .1 .0 * 20.3 23.7 86
YOUNTS PEAK 8350 .0 1.5 0* 22.0 23.8 92
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Basin wide percent of average 102* 104
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 17.1 15.4 111
BONE SPRINGS DIV 9350 -M 1.9 * -M 24.0 *
BURGESS JUNCTION 7880 -M .0 * 18.8 19.1 98
CLOUD PEAK RESERVOIR 9860 .0 2.4 0 24.7 23.2 106
DOME LAKE 8880 -M .6 * 20.7 21.7 95
GRAVE SPRINGS 8550 .0 -M * 19.3 18.0 107
HANSEN SAWMILL 8760 .0 .0 100* 17.9 14.8 121
MIDDLE POWDER 7760 .0 .0 100* 18.2 19.9 91
POWDER RIVER PASS 9480 .0 .0 100* 20.8 19.9 105
SUCKER CREEK 8880 -M .1 * 21.6 22.3 97
TIE CREEK 6870 .0 -M * 21.8 18.4 118
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Basin wide percent of average 0* 104
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* -M 20.6 *
NORTH RAPID CREEK 6130 .0 -M * -M -M *
WARREN PEAK 6520 .0 .0 100* 17.5 15.3 114
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Basin wide percent of average * 114*
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 30.4 31.7 96
DIVIDE PEAK 8800 .7 .2 350* 28.8 31.6 91
ELK RIVER 8700 .0 .0 100* -M 25.5 *
JOE WRIGHT 10120 5.4 5.7 95 35.4 36.3 98
NORTH FRENCH CREEK 10100 -M 9.6 * 42.2 33.5 126
OLD BATTLE 10000 16.9 7.5 225 47.7 41.0 116
SOUTH BRUSH CREEK 8400 .9 .0 * 20.7 24.8 83
TOWER 10500 -M 23.1 * 55.2 50.7 109
WEBBER SPRINGS 9200 .4 1.5 27* 35.3 34.9 101
WILLOW CREEK PASS 9540 .0 .0 100* 14.8 19.6 76
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Basin wide percent of average 157* 102
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 -M 3.0 * -M 28.2 *
CASPER MTN. 7900 .3 .7 43* 18.4 24.5 75
DEADMAN HILL 10220 .1 2.9 3 22.4 25.9 86
DEER PARK 9700 -M -M * 31.4 -M *
LAPRELE CREEK 8320 .0 .0 100* 16.0 19.5 82
RENO HILL 8400 .0 .5 0* 15.7 25.8 61
ROACH 9700 .5 .8 62* 26.3 31.4 84
SAND LAKE 10080 -M 10.7 * 35.4 29.9 118
SOUTH PASS 9040 .9 2.9 31 27.5 25.4 108
WINDY PEAK 7840 .0 .0 100* 15.6 17.1 91
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Basin wide percent of average 23* 89
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 22.6 21.4 106
DIVIDE PEAK 8800 .7 .2 350* 28.8 31.6 91
OLD BATTLE 10000 16.9 7.5 225 47.7 41.0 116
SANDSTONE RS 8150 .0 .0 100* 26.8 26.7 100
WHISKEY PARK 8950 .9 .2 450* 40.4 39.0 104
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Basin wide percent of average 234* 104
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.0 21.5 102
BLIND BULL SUM 8650 6.4 6.7 96 27.5 30.4 90
EAST RIM DIVIDE 7930 .0 .0 100* 18.7 20.1 93
ELKHART PARK G.S. 9400 .0 .0 100* 22.6 21.2 107
GROS VENTRE SUMMIT 8775 -M .0 * 21.0 21.1 100
KENDALL R.S. 7740 .0 .0 100* 21.9 20.6 106
LOOMIS PARK 8240 -M .0 * 25.5 24.9 102
NEW FORK LAKE 8340 .1 .0 * 19.9 19.1 104
SNIDER BASIN 8250 .3 .0 * 19.0 20.1 95
SPRING CREEK DIVIDE 9000 7.0 .0 * 30.9 34.9 89
TRIPLE PEAK 8500 .0 .0 100* 30.7 40.2 76
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Basin wide percent of average 96* 95
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 19.0 17.7 107
HEWINTA 9500 .6 .0 * 20.7 20.2 102
HICKERSON PARK 9150 .4 .0 * 21.8 16.4 133
HOLE-IN-ROCK 9150 .4 .0 * 19.9 16.4 121
INDIAN CREEK 9425 11.6 .0 * 29.4 33.4 88
KELLEY R.S. 8180 .0 .0 100* 25.7 24.9 103
STEEL CREEK PARK 10100 13.4 2.7 496 28.3 21.9 129
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Basin wide percent of average 496* 109
UPPER BEAR RIVER
BUG LAKE 7950 .5 .0 * 31.5 25.8 122
HAYDEN FORK 9400 .7 .0 * 31.6 27.5 115
KELLEY R.S. 8180 .0 .0 100* 25.7 24.9 103
LILY LAKE 9050 1.1 .0 * 28.7 22.3 129
MONTE CRISTO 8960 3.9 2.9 134* 39.8 34.9 114
SALT RIVER SUMMIT 7600 .0 .0 100* 28.4 22.4 127
TRIAL LAKE 9960 6.3 3.0 210 34.4 32.9 105
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Basin wide percent of average 173* 115
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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.