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 26 , 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* 29.3 29.3 100
COTTONWOOD CREEK 7600 .0 .0 100* 34.5 32.6 106
GRANITE CREEK 6770 .0 .0 100* 29.2 31.7 92
GRASSY LAKE 7265 .1 .0 * 50.0 48.6 103
GROS VENTRE SUMMIT 8775 .1 .0 * 22.2 21.4 104
LEWIS LAKE DIVIDE 7860 .1 .0 * 43.5 49.4 88
PHILLIPS BENCH 8200 2.3 .0 * 36.5 38.9 94
SALT RIVER SUMMIT 7600 .1 .0 * 28.8 22.7 127
SNAKE RIVER STATION 6920 -M .0 * -M 34.1 *
SPRING CREEK DIVIDE 9000 .9 .0 * 31.2 35.3 88
THUMB DIVIDE 7980 .0 .0 100* 27.6 27.4 101
TOGWOTEE PASS 9580 14.9 4.2 355 34.3 37.1 92
TWO OCEAN PLATEAU 9360 16.1 4.9 329 38.8 40.4 96
WILLOW CREEK 8450 .1 .0 * 46.0 41.9 110
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Basin wide percent of average 341* 99
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 2.3 4.1 56 24.0 27.1 89
BLACK BEAR 7950 15.8 5.2 304 51.8 53.8 96
CANYON 7940 .0 .1 0* 22.9 21.1 109
FISHER CREEK 9100 16.2 10.7 151 39.9 50.2 79
MADISON PLATEAU 7750 .2 .1 200* 35.9 35.8 100
NORTHEAST ENTRANCE 7350 -M .0 * -M 18.6 *
PARKER PEAK 9400 4.2 5.9 71 25.8 24.2 107
SYLVAN LAKE 8420 .0 1.9 0* 32.6 29.0 112
THUMB DIVIDE 7980 .0 .0 100* 27.6 27.4 101
TWO OCEAN PLATEAU 9360 16.1 4.9 329 38.8 40.4 96
WHISKEY CREEK 6800 .0 .0 100* 31.2 30.1 104
WHITE MILL 8700 5.9 4.8 123 31.0 39.3 79
WOLVERINE 7650 .0 .0 100* 15.1 20.1 75
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Basin wide percent of average 161* 95
WIND RIVER
BURROUGHS CREEK 8750 .2 .0 * 26.6 23.9 111
COLD SPRINGS 9630 .1 .0 * 21.6 17.8 121
DEER PARK 9700 -M -M * 31.7 -M *
HOBBS PARK 10100 3.9 1.2 325* 27.0 22.7 119
LITTLE WARM 9620 .1 .0 * 22.3 20.9 107
SOUTH PASS 9040 .0 1.2 0* 27.6 25.9 107
ST. LAWRENCE ALT 8620 .1 .0 * 19.7 16.4 120
TOGWOTEE PASS 9580 14.9 4.2 355 34.3 37.1 92
TOWNSEND CREEK 8700 .0 .0 100* 24.0 20.4 118
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Basin wide percent of average 285* 110
BIGHORN BASIN
BALD MTN. 9375 7.7 3.5 220 27.0 27.3 99
BEAR TRAP MEADOW 7900 .0 .0 100* 17.5 16.0 109
BLACKWATER 9780 12.5 4.0 312 28.8 27.2 106
BONE SPRINGS DIV 9350 .2 .8 25* 25.3 24.7 102
EVENING STAR 9200 5.3 8.8 60 36.2 33.5 108
GRAVE SPRINGS 8550 .0 -M * 19.7 18.7 105
KIRWIN 9550 .2 .3 67* 21.8 18.1 120
MARQUETTE 8760 .1 .3 33* 23.7 19.5 122
MIDDLE POWDER 7760 .0 .0 100* 18.6 20.6 90
OWL CREEK 8975 .0 .0 100* 15.5 12.3 126
POWDER RIVER PASS 9480 .0 .0 100* 22.0 20.5 107
SHELL CREEK 9580 .0 1.2 0* 18.3 22.6 81
SYLVAN LAKE 8420 .0 1.9 0* 32.6 29.0 112
SYLVAN ROAD 8120 .1 .0 * 21.6 24.4 89
TIMBER CREEK 7950 -M .0 * 18.0 15.6 115
YOUNTS PEAK 8350 .0 .6 0* 23.2 24.4 95
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Basin wide percent of average 121* 104
SHOSHONE RIVER
BLACKWATER 9780 12.5 4.0 312 28.8 27.2 106
EVENING STAR 9200 5.3 8.8 60 36.2 33.5 108
KIRWIN 9550 .2 .3 67* 21.8 18.1 120
MARQUETTE 8760 .1 .3 33* 23.7 19.5 122
SYLVAN LAKE 8420 .0 1.9 0* 32.6 29.0 112
SYLVAN ROAD 8120 .1 .0 * 21.6 24.4 89
YOUNTS PEAK 8350 .0 .6 0* 23.2 24.4 95
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Basin wide percent of average 114* 107
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 17.5 16.0 109
BONE SPRINGS DIV 9350 .2 .8 25* 25.3 24.7 102
BURGESS JUNCTION 7880 .0 .0 100* 19.0 19.7 96
CLOUD PEAK RESERVOIR 9860 .0 1.0 0* 25.4 24.0 106
DOME LAKE 8880 .0 .3 0* 21.5 22.3 96
GRAVE SPRINGS 8550 .0 -M * 19.7 18.7 105
HANSEN SAWMILL 8760 .0 .0 100* 18.7 15.5 121
MIDDLE POWDER 7760 .0 .0 100* 18.6 20.6 90
POWDER RIVER PASS 9480 .0 .0 100* 22.0 20.5 107
SUCKER CREEK 8880 .0 .0 100* 22.3 23.0 97
TIE CREEK 6870 .0 -M * 22.0 18.9 116
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Basin wide percent of average 10* 104
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 22.3 21.5 104
NORTH RAPID CREEK 6130 .0 -M * 21.0 -M *
WARREN PEAK 6520 .0 .0 100* 18.5 16.1 115
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Basin wide percent of average * 109
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 30.7 32.1 96
DIVIDE PEAK 8800 .0 .1 0* 28.5 31.9 89
ELK RIVER 8700 .0 .0 100* 29.2 25.9 113
JOE WRIGHT 10120 .0 3.1 0 35.4 36.9 96
NORTH FRENCH CREEK 10100 10.9 4.0 273 42.2 34.0 124
OLD BATTLE 10000 6.5 4.7 138 47.7 41.5 115
SOUTH BRUSH CREEK 8400 .0 .0 100* 20.9 25.4 82
TOWER 10500 27.9 15.6 179 55.2 51.2 108
WEBBER SPRINGS 9200 .0 .6 0* 36.1 35.4 102
WILLOW CREEK PASS 9540 .0 .0 100* 15.8 20.1 79
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Basin wide percent of average 161* 102
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 1.2 0* 31.7 28.6 111
CASPER MTN. 7900 .1 .3 33* 19.2 25.1 76
DEADMAN HILL 10220 .0 1.2 0* 22.3 26.4 84
DEER PARK 9700 -M -M * 31.7 -M *
LAPRELE CREEK 8320 .0 .0 100* 16.0 20.1 80
RENO HILL 8400 .0 .2 0* 15.2 26.4 58
ROACH 9700 .1 .3 33* 26.2 31.9 82
SAND LAKE 10080 1.2 6.0 20 35.3 30.5 116
SOUTH PASS 9040 .0 1.2 0* 27.6 25.9 107
WINDY PEAK 7840 .0 .0 100* 15.3 17.6 87
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Basin wide percent of average 13* 90
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .2 .0 * 23.1 21.7 106
DIVIDE PEAK 8800 .0 .1 0* 28.5 31.9 89
OLD BATTLE 10000 6.5 4.7 138 47.7 41.5 115
SANDSTONE RS 8150 .2 .0 * 27.0 26.9 100
WHISKEY PARK 8950 .0 .1 0* 40.4 39.3 103
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Basin wide percent of average 133* 103
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .1 .0 * 22.2 21.9 101
BLIND BULL SUM 8650 1.1 2.8 39* 28.3 30.8 92
EAST RIM DIVIDE 7930 .0 .0 100* 19.0 20.5 93
ELKHART PARK G.S. 9400 .0 .0 100* 23.0 21.5 107
GROS VENTRE SUMMIT 8775 .1 .0 * 22.2 21.4 104
KENDALL R.S. 7740 .1 .0 * 22.1 21.0 105
LOOMIS PARK 8240 -M .0 * 26.2 25.4 103
NEW FORK LAKE 8340 .1 .0 * 20.2 19.5 104
SNIDER BASIN 8250 .1 .0 * 19.2 20.5 94
SPRING CREEK DIVIDE 9000 .9 .0 * 31.2 35.3 88
TRIPLE PEAK 8500 .0 .0 100* 31.4 40.8 77
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Basin wide percent of average 39* 95
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 19.2 18.0 107
HEWINTA 9500 .0 .0 100* 20.6 20.7 100
HICKERSON PARK 9150 .0 .0 100* 21.7 16.9 128
HOLE-IN-ROCK 9150 .0 .0 100* 19.8 16.9 117
INDIAN CREEK 9425 5.0 .0 * 30.0 33.9 88
KELLEY R.S. 8180 .0 .0 100* 25.8 25.3 102
STEEL CREEK PARK 10100 8.1 1.1 736* 29.4 22.7 130
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Basin wide percent of average 736* 108
UPPER BEAR RIVER
BUG LAKE 7950 .0 .0 100* 31.5 26.2 120
HAYDEN FORK 9400 .0 .0 100* 31.5 28.0 112
KELLEY R.S. 8180 .0 .0 100* 25.8 25.3 102
LILY LAKE 9050 .0 .0 100* 28.5 22.8 125
MONTE CRISTO 8960 1.6 1.2 133* 40.0 35.4 113
SALT RIVER SUMMIT 7600 .1 .0 * 28.8 22.7 127
TRIAL LAKE 9960 .9 1.2 75* 34.4 33.4 103
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Basin wide percent of average 104* 114
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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.