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 TUESDAY: JUNE 30 , 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* 29.6 29.5 100
COTTONWOOD CREEK 7600 .0 .0 100* 34.6 32.8 105
GRANITE CREEK 6770 .0 .0 100* 29.8 32.0 93
GRASSY LAKE 7265 .0 .0 100* 50.4 48.9 103
GROS VENTRE SUMMIT 8775 .1 .0 * 22.5 21.6 104
LEWIS LAKE DIVIDE 7860 .1 .0 * 43.8 49.7 88
PHILLIPS BENCH 8200 .2 .0 * 36.9 39.1 94
SALT RIVER SUMMIT 7600 .1 .0 * 28.9 22.9 126
SNAKE RIVER STATION 6920 .0 .0 100* 33.5 34.3 98
SPRING CREEK DIVIDE 9000 .0 .0 100* 31.3 35.5 88
THUMB DIVIDE 7980 .0 .0 100* 28.2 27.6 102
TOGWOTEE PASS 9580 11.4 .8 1425* 34.5 37.3 92
TWO OCEAN PLATEAU 9360 12.6 1.0 1260* 39.3 40.7 97
WILLOW CREEK 8450 .0 .0 100* 46.5 42.2 110
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Basin wide percent of average 1333* 99
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .5 2.2 23* 25.0 27.4 91
BLACK BEAR 7950 10.6 2.0 530* 52.1 54.3 96
CANYON 7940 .0 .0 100* 23.4 21.4 109
FISHER CREEK 9100 12.5 6.9 181 41.6 50.8 82
MADISON PLATEAU 7750 .1 .0 * 36.6 36.2 101
NORTHEAST ENTRANCE 7350 -M .0 * -M 18.9 *
PARKER PEAK 9400 .7 4.0 18 26.3 24.6 107
SYLVAN LAKE 8420 .0 .4 0* 33.1 29.4 113
THUMB DIVIDE 7980 .0 .0 100* 28.2 27.6 102
TWO OCEAN PLATEAU 9360 12.6 1.0 1260* 39.3 40.7 97
WHISKEY CREEK 6800 .0 .0 100* 32.5 30.5 107
WHITE MILL 8700 2.9 2.6 112* 32.1 39.7 81
WOLVERINE 7650 .0 .0 100* 15.5 20.4 76
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Basin wide percent of average 208* 96
WIND RIVER
BURROUGHS CREEK 8750 .1 .0 * 26.9 24.1 112
COLD SPRINGS 9630 .1 .0 * 21.8 18.0 121
DEER PARK 9700 -M -M * 32.1 -M *
HOBBS PARK 10100 .2 .3 67* 27.3 23.0 119
LITTLE WARM 9620 .0 .0 100* 22.7 21.1 108
SOUTH PASS 9040 .0 .2 0* 27.9 26.2 106
ST. LAWRENCE ALT 8620 .1 .0 * 19.8 16.6 119
TOGWOTEE PASS 9580 11.4 .8 1425* 34.5 37.3 92
TOWNSEND CREEK 8700 .0 .0 100* 24.4 20.7 118
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Basin wide percent of average 892* 110
BIGHORN BASIN
BALD MTN. 9375 3.7 1.3 285* 27.5 27.6 100
BEAR TRAP MEADOW 7900 .0 .0 100* 17.1 16.3 105
BLACKWATER 9780 9.2 2.6 354* 29.6 27.8 106
BONE SPRINGS DIV 9350 .1 .2 50* 25.2 25.1 100
EVENING STAR 9200 1.8 6.6 27 36.7 34.1 108
GRAVE SPRINGS 8550 .0 -M * 19.8 19.1 104
KIRWIN 9550 .1 .1 100* 21.7 18.4 118
MARQUETTE 8760 .2 .1 200* 23.9 19.8 121
MIDDLE POWDER 7760 .0 .0 100* 18.7 21.0 89
OWL CREEK 8975 .0 .0 100* 15.7 12.5 126
POWDER RIVER PASS 9480 -M .0 * -M 20.9 *
SHELL CREEK 9580 .0 .2 0* 18.4 23.1 80
SYLVAN LAKE 8420 .0 .4 0* 33.1 29.4 113
SYLVAN ROAD 8120 .0 .0 100* 21.7 24.8 88
TIMBER CREEK 7950 .0 .0 100* 18.1 15.8 115
YOUNTS PEAK 8350 .0 .1 0* 23.3 24.7 94
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Basin wide percent of average 130* 103
SHOSHONE RIVER
BLACKWATER 9780 9.2 2.6 354* 29.6 27.8 106
EVENING STAR 9200 1.8 6.6 27 36.7 34.1 108
KIRWIN 9550 .1 .1 100* 21.7 18.4 118
MARQUETTE 8760 .2 .1 200* 23.9 19.8 121
SYLVAN LAKE 8420 .0 .4 0* 33.1 29.4 113
SYLVAN ROAD 8120 .0 .0 100* 21.7 24.8 88
YOUNTS PEAK 8350 .0 .1 0* 23.3 24.7 94
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Basin wide percent of average 114* 106
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 17.1 16.3 105
BONE SPRINGS DIV 9350 .1 .2 50* 25.2 25.1 100
BURGESS JUNCTION 7880 .0 .0 100* 18.9 20.0 94
CLOUD PEAK RESERVOIR 9860 .0 .2 0* 25.5 24.4 105
DOME LAKE 8880 .0 .1 0* 21.7 22.6 96
GRAVE SPRINGS 8550 .0 -M * 19.8 19.1 104
HANSEN SAWMILL 8760 .0 .0 100* 18.8 15.9 118
MIDDLE POWDER 7760 .0 .0 100* 18.7 21.0 89
POWDER RIVER PASS 9480 -M .0 * -M 20.9 *
SUCKER CREEK 8880 .0 .0 100* 22.1 23.4 94
TIE CREEK 6870 .0 -M * 22.0 19.2 115
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Basin wide percent of average 20* 101
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 22.3 22.1 101
NORTH RAPID CREEK 6130 .0 -M * 21.0 -M *
WARREN PEAK 6520 .0 .0 100* 18.2 16.6 110
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Basin wide percent of average * 105
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 30.5 32.3 94
DIVIDE PEAK 8800 .0 .0 100* 28.3 32.1 88
ELK RIVER 8700 .0 .0 100* 28.6 26.1 110
JOE WRIGHT 10120 .0 1.7 0* 35.4 37.2 95
NORTH FRENCH CREEK 10100 4.7 .8 588* 42.2 34.2 123
OLD BATTLE 10000 2.0 3.0 67* 47.4 41.8 113
SOUTH BRUSH CREEK 8400 .0 .0 100* 20.8 25.7 81
TOWER 10500 20.0 11.3 177 55.2 51.5 107
WEBBER SPRINGS 9200 .0 .1 0* 36.0 35.6 101
WILLOW CREEK PASS 9540 .0 .0 100* 16.1 20.3 79
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Basin wide percent of average 158* 101
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 .2 0* 31.7 28.8 110
CASPER MTN. 7900 .1 .1 100* 19.3 25.4 76
DEADMAN HILL 10220 .1 .2 50* 22.3 26.6 84
DEER PARK 9700 -M -M * 32.1 -M *
LAPRELE CREEK 8320 .0 .0 100* 15.9 20.4 78
RENO HILL 8400 .0 .0 100* 15.2 26.7 57
ROACH 9700 .1 .1 100* 26.2 32.1 82
SAND LAKE 10080 .0 3.4 0* 35.4 30.8 115
SOUTH PASS 9040 .0 .2 0* 27.9 26.2 106
WINDY PEAK 7840 .0 .0 100* 15.1 17.9 84
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Basin wide percent of average 7* 89
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .2 .0 * 23.1 21.8 106
DIVIDE PEAK 8800 .0 .0 100* 28.3 32.1 88
OLD BATTLE 10000 2.0 3.0 67* 47.4 41.8 113
SANDSTONE RS 8150 .3 .0 * 27.0 27.1 100
WHISKEY PARK 8950 .0 .0 100* 40.4 39.5 102
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Basin wide percent of average 67* 102
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.3 22.1 101
BLIND BULL SUM 8650 .1 .6 17* 28.6 31.0 92
EAST RIM DIVIDE 7930 .0 .0 100* 19.5 20.7 94
ELKHART PARK G.S. 9400 .0 .0 100* 23.2 21.7 107
GROS VENTRE SUMMIT 8775 .1 .0 * 22.5 21.6 104
KENDALL R.S. 7740 .0 .0 100* 22.2 21.2 105
LOOMIS PARK 8240 -M .0 * 26.5 25.6 104
NEW FORK LAKE 8340 .0 .0 100* 20.1 19.7 102
SNIDER BASIN 8250 .0 .0 100* 19.3 20.7 93
SPRING CREEK DIVIDE 9000 .0 .0 100* 31.3 35.5 88
TRIPLE PEAK 8500 .0 .0 100* 31.5 41.1 77
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Basin wide percent of average 17* 95
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 19.3 18.2 106
HEWINTA 9500 .0 .0 100* -M 20.9 *
HICKERSON PARK 9150 .0 .0 100* -M 17.1 *
HOLE-IN-ROCK 9150 .0 .0 100* -M 17.1 *
INDIAN CREEK 9425 1.9 .0 * 29.6 34.1 87
KELLEY R.S. 8180 .0 .0 100* 25.9 25.5 102
STEEL CREEK PARK 10100 2.4 .2 1200* 28.7 23.2 124
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Basin wide percent of average 1200* 102
UPPER BEAR RIVER
BUG LAKE 7950 .0 .0 100* 31.6 26.4 120
HAYDEN FORK 9400 .0 .0 100* 31.5 28.2 112
KELLEY R.S. 8180 .0 .0 100* 25.9 25.5 102
LILY LAKE 9050 .0 .0 100* 28.5 23.0 124
MONTE CRISTO 8960 1.5 .2 750* 40.0 35.6 112
SALT RIVER SUMMIT 7600 .1 .0 * 28.9 22.9 126
TRIAL LAKE 9960 .9 .2 450* 34.3 33.6 102
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Basin wide percent of average 600* 113
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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.