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 SUNDAY: JUNE 28 , 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 * 29.6 29.4 101
COTTONWOOD CREEK 7600 .0 .0 100* 34.6 32.7 106
GRANITE CREEK 6770 .0 .0 100* 29.4 31.9 92
GRASSY LAKE 7265 .0 .0 100* 50.4 48.7 103
GROS VENTRE SUMMIT 8775 .1 .0 * 22.6 21.5 105
LEWIS LAKE DIVIDE 7860 .0 .0 100* 43.8 49.5 88
PHILLIPS BENCH 8200 .2 .0 * 36.8 39.0 94
SALT RIVER SUMMIT 7600 .1 .0 * 28.9 22.8 127
SNAKE RIVER STATION 6920 .0 .0 100* 33.5 34.2 98
SPRING CREEK DIVIDE 9000 .0 .0 100* 31.3 35.4 88
THUMB DIVIDE 7980 .0 .0 100* 28.1 27.5 102
TOGWOTEE PASS 9580 13.8 2.5 552* 34.5 37.2 93
TWO OCEAN PLATEAU 9360 14.7 2.9 507 39.0 40.6 96
WILLOW CREEK 8450 .0 .0 100* 46.6 42.1 111
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Basin wide percent of average 528* 99
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 2.0 3.2 62 24.5 27.3 90
BLACK BEAR 7950 14.2 3.6 394* 52.1 54.0 96
CANYON 7940 .0 .0 100* 23.5 21.2 111
FISHER CREEK 9100 16.8 8.8 191 41.4 50.5 82
MADISON PLATEAU 7750 .1 .1 100* 36.6 36.0 102
NORTHEAST ENTRANCE 7350 -M .0 * -M 18.8 *
PARKER PEAK 9400 4.1 4.9 84 26.2 24.4 107
SYLVAN LAKE 8420 .0 1.1 0* 33.1 29.2 113
THUMB DIVIDE 7980 .0 .0 100* 28.1 27.5 102
TWO OCEAN PLATEAU 9360 14.7 2.9 507 39.0 40.6 96
WHISKEY CREEK 6800 .0 .0 100* 32.6 30.3 108
WHITE MILL 8700 6.4 3.7 173 32.1 39.5 81
WOLVERINE 7650 .0 .0 100* 15.8 20.3 78
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Basin wide percent of average 206* 96
WIND RIVER
BURROUGHS CREEK 8750 .1 .0 * 26.9 24.0 112
COLD SPRINGS 9630 .0 .0 100* 21.8 17.9 122
DEER PARK 9700 -M -M * 32.1 -M *
HOBBS PARK 10100 1.3 .7 186* 27.3 22.9 119
LITTLE WARM 9620 .0 .0 100* 22.6 21.0 108
SOUTH PASS 9040 .0 .7 0* 28.0 26.1 107
ST. LAWRENCE ALT 8620 .1 .0 * 19.9 16.5 121
TOGWOTEE PASS 9580 13.8 2.5 552* 34.5 37.2 93
TOWNSEND CREEK 8700 .0 .0 100* 24.4 20.6 118
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Basin wide percent of average 387* 110
BIGHORN BASIN
BALD MTN. 9375 6.7 2.4 279* 27.2 27.5 99
BEAR TRAP MEADOW 7900 .0 .0 100* 17.3 16.2 107
BLACKWATER 9780 11.7 3.3 355 29.4 27.5 107
BONE SPRINGS DIV 9350 .1 .5 20* 25.3 24.9 102
EVENING STAR 9200 4.7 7.7 61 36.7 33.8 109
GRAVE SPRINGS 8550 .0 -M * 19.8 18.9 105
KIRWIN 9550 .1 .2 50* 21.8 18.3 119
MARQUETTE 8760 .0 .2 0* 23.8 19.6 121
MIDDLE POWDER 7760 .0 .0 100* 18.5 20.8 89
OWL CREEK 8975 .0 .0 100* 15.4 12.4 124
POWDER RIVER PASS 9480 .0 .0 100* 21.8 20.7 105
SHELL CREEK 9580 .0 .8 0* 18.4 22.9 80
SYLVAN LAKE 8420 .0 1.1 0* 33.1 29.2 113
SYLVAN ROAD 8120 .1 .0 * 22.0 24.6 89
TIMBER CREEK 7950 -M .0 * 18.1 15.7 115
YOUNTS PEAK 8350 .0 .4 0* 23.4 24.6 95
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Basin wide percent of average 140* 104
SHOSHONE RIVER
BLACKWATER 9780 11.7 3.3 355 29.4 27.5 107
EVENING STAR 9200 4.7 7.7 61 36.7 33.8 109
KIRWIN 9550 .1 .2 50* 21.8 18.3 119
MARQUETTE 8760 .0 .2 0* 23.8 19.6 121
SYLVAN LAKE 8420 .0 1.1 0* 33.1 29.2 113
SYLVAN ROAD 8120 .1 .0 * 22.0 24.6 89
YOUNTS PEAK 8350 .0 .4 0* 23.4 24.6 95
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Basin wide percent of average 128* 107
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 17.3 16.2 107
BONE SPRINGS DIV 9350 .1 .5 20* 25.3 24.9 102
BURGESS JUNCTION 7880 .0 .0 100* 19.0 19.9 95
CLOUD PEAK RESERVOIR 9860 .0 .6 0* 25.4 24.2 105
DOME LAKE 8880 .0 .2 0* 21.7 22.5 96
GRAVE SPRINGS 8550 .0 -M * 19.8 18.9 105
HANSEN SAWMILL 8760 .0 .0 100* 18.8 15.7 120
MIDDLE POWDER 7760 .0 .0 100* 18.5 20.8 89
POWDER RIVER PASS 9480 .0 .0 100* 21.8 20.7 105
SUCKER CREEK 8880 .0 .0 100* 22.0 23.2 95
TIE CREEK 6870 .0 -M * 22.0 19.1 115
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Basin wide percent of average 8* 102
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 22.3 21.8 102
NORTH RAPID CREEK 6130 .0 -M * 20.8 -M *
WARREN PEAK 6520 .0 .0 100* 18.1 16.4 110
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Basin wide percent of average * 106
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 30.3 32.2 94
DIVIDE PEAK 8800 .0 .1 0* 28.3 32.0 88
ELK RIVER 8700 .0 .0 100* 29.2 26.0 112
JOE WRIGHT 10120 .0 2.4 0* 35.4 37.1 95
NORTH FRENCH CREEK 10100 7.2 2.4 300* 42.2 34.1 124
OLD BATTLE 10000 2.9 3.8 76 47.4 41.7 114
SOUTH BRUSH CREEK 8400 .0 .0 100* 20.6 25.6 80
TOWER 10500 23.9 13.4 178 55.2 51.4 107
WEBBER SPRINGS 9200 .0 .4 0* 35.7 35.5 101
WILLOW CREEK PASS 9540 .0 .0 100* 15.9 20.2 79
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Basin wide percent of average 151* 101
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 .8 0* 31.7 28.7 110
CASPER MTN. 7900 .1 .2 50* 19.0 25.2 75
DEADMAN HILL 10220 .0 .7 0* 22.3 26.5 84
DEER PARK 9700 -M -M * 32.1 -M *
LAPRELE CREEK 8320 .0 .0 100* 15.8 20.3 78
RENO HILL 8400 .0 .1 0* 15.2 26.6 57
ROACH 9700 .1 .2 50* 26.2 32.0 82
SAND LAKE 10080 .0 4.7 0 35.4 30.7 115
SOUTH PASS 9040 .0 .7 0* 28.0 26.1 107
WINDY PEAK 7840 .0 .0 100* 15.3 17.8 86
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Basin wide percent of average 3* 89
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 .0 * 23.0 21.7 106
DIVIDE PEAK 8800 .0 .1 0* 28.3 32.0 88
OLD BATTLE 10000 2.9 3.8 76 47.4 41.7 114
SANDSTONE RS 8150 .1 .0 * 26.8 27.0 99
WHISKEY PARK 8950 .0 .0 100* 40.4 39.4 103
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Basin wide percent of average 74* 103
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.4 22.0 102
BLIND BULL SUM 8650 .9 1.7 53* 28.6 30.9 93
EAST RIM DIVIDE 7930 .0 .0 100* 19.2 20.6 93
ELKHART PARK G.S. 9400 .0 .0 100* 23.2 21.6 107
GROS VENTRE SUMMIT 8775 .1 .0 * 22.6 21.5 105
KENDALL R.S. 7740 .0 .0 100* 22.2 21.1 105
LOOMIS PARK 8240 -M .0 * 26.6 25.5 104
NEW FORK LAKE 8340 .0 .0 100* 20.0 19.6 102
SNIDER BASIN 8250 .0 .0 100* 19.1 20.6 93
SPRING CREEK DIVIDE 9000 .0 .0 100* 31.3 35.4 88
TRIPLE PEAK 8500 .0 .0 100* 31.5 41.0 77
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Basin wide percent of average 53* 95
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 19.4 18.1 107
HEWINTA 9500 .0 .0 100* -M 20.8 *
HICKERSON PARK 9150 .0 .0 100* 21.6 17.0 127
HOLE-IN-ROCK 9150 .0 .0 100* 19.8 17.0 116
INDIAN CREEK 9425 2.6 .0 * 29.8 34.0 88
KELLEY R.S. 8180 .0 .0 100* 25.8 25.4 102
STEEL CREEK PARK 10100 5.8 .7 829* 29.3 23.0 127
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Basin wide percent of average 829* 108
UPPER BEAR RIVER
BUG LAKE 7950 .0 .0 100* 31.6 26.2 121
HAYDEN FORK 9400 .0 .0 100* 31.5 28.1 112
KELLEY R.S. 8180 .0 .0 100* 25.8 25.4 102
LILY LAKE 9050 .0 .0 100* 28.7 22.9 125
MONTE CRISTO 8960 1.6 .7 229* 40.0 35.5 113
SALT RIVER SUMMIT 7600 .1 .0 * 28.9 22.8 127
TRIAL LAKE 9960 .9 .8 112* 34.4 33.5 103
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Basin wide percent of average 167* 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.