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 WEDNESDAY: JUNE 23 , 1999
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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* 34.3 29.2 118
COTTONWOOD CREEK 7600 .0 .0 100* 40.7 32.5 125
GRANITE CREEK 6770 .2 .0 * 31.9 31.5 102
GRASSY LAKE 7265 .0 .0 100* 55.7 48.3 116
GROS VENTRE SUMMIT 8775 .0 .0 100* 23.4 21.4 110
LEWIS LAKE DIVIDE 7860 .0 .0 100* 50.5 49.2 103
PHILLIPS BENCH 8200 .9 .0 * 41.7 38.8 108
SALT RIVER SUMMIT 7600 .3 .0 * 26.0 22.7 116
SNAKE RIVER STATION 6920 .0 .0 100* 34.7 33.9 103
SPRING CREEK DIVIDE 9000 2.8 .0 * 39.8 35.3 113
THUMB DIVIDE 7980 .0 .0 100* 31.0 27.4 114
TOGWOTEE PASS 9580 -M 6.8 * 39.0 36.9 106
TWO OCEAN PLATEAU 9360 23.0 8.0 292 41.9 40.3 105
WILLOW CREEK 8450 .0 .0 100* 54.3 41.8 130
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Basin wide percent of average 292* 112
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 8.1 5.8 143 30.9 26.9 115
BLACK BEAR 7950 27.0 7.6 356 65.5 53.4 123
CANYON 7940 .2 .3 50* 26.4 20.9 126
FISHER CREEK 9100 26.4 13.7 193 48.9 49.9 98
MADISON PLATEAU 7750 -M .3 * 42.5 35.5 120
NORTHEAST ENTRANCE 7350 .2 .0 * 20.7 18.4 113
PARKER PEAK 9400 .6 7.5 9 -M 23.9 *
SYLVAN LAKE 8420 5.3 3.0 174 -M 28.7 *
THUMB DIVIDE 7980 .0 .0 100* 31.0 27.4 114
TWO OCEAN PLATEAU 9360 23.0 8.0 292 41.9 40.3 105
WHISKEY CREEK 6800 .0 .0 100* 34.4 29.9 116
WHITE MILL 8700 9.7 6.5 150 34.2 39.0 88
WOLVERINE 7650 .0 .0 100* 18.0 19.9 91
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Basin wide percent of average 193 110
WIND RIVER
BURROUGHS CREEK 8750 .2 .0 * 27.0 23.9 114
COLD SPRINGS 9630 .0 .0 100* 26.9 17.7 153
DEER PARK 9700 1.7 -M * 38.0 -M *
HOBBS PARK 10100 5.8 1.9 301* 32.0 22.7 142
LITTLE WARM 9620 .2 .0 * 28.4 20.7 138
SOUTH PASS 9040 -M 2.0 * 34.8 25.7 136
ST. LAWRENCE ALT 8620 .0 .0 100* 23.7 16.2 147
TOGWOTEE PASS 9580 -M 6.8 * 39.0 36.9 106
TOWNSEND CREEK 8700 .0 .0 100* 28.7 20.4 141
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Basin wide percent of average 301* 131
BIGHORN BASIN
BALD MTN. 9375 5.6 5.3 108 29.4 27.2 109
BEAR TRAP MEADOW 7900 -M .0 * -M 15.9 *
BLACKWATER 9780 21.0 5.1 412 34.8 26.9 129
BONE SPRINGS DIV 9350 .2 1.4 8* 29.7 24.5 121
EVENING STAR 9200 14.0 10.5 134 45.5 33.2 138
GRAVE SPRINGS 8550 .0 .0 100* -M 18.5 *
KIRWIN 9550 .0 .5 0* 24.5 17.9 137
MARQUETTE 8760 .0 .5 0* 24.7 19.4 128
MIDDLE POWDER 7760 .0 .0 100* -M 20.4 *
OWL CREEK 8975 .0 .0 100* 19.9 12.1 164
POWDER RIVER PASS 9480 .2 .0 * 26.2 20.4 129
SHELL CREEK 9580 .0 2.0 0 25.5 22.4 115
SYLVAN LAKE 8420 5.3 3.0 174 -M 28.7 *
SYLVAN ROAD 8120 -M .0 * -M 24.2 *
TIMBER CREEK 7950 -M .0 * -M 15.5 *
YOUNTS PEAK 8350 .7 1.0 70* 25.9 24.2 108
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Basin wide percent of average 161* 126
SHOSHONE RIVER
BLACKWATER 9780 21.0 5.1 412 34.8 26.9 129
EVENING STAR 9200 14.0 10.5 134 45.5 33.2 138
KIRWIN 9550 .0 .5 0* 24.5 17.9 137
MARQUETTE 8760 .0 .5 0* 24.7 19.4 128
SYLVAN LAKE 8420 5.3 3.0 174 -M 28.7 *
SYLVAN ROAD 8120 -M .0 * -M 24.2 *
YOUNTS PEAK 8350 .7 1.0 70* 25.9 24.2 108
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Basin wide percent of average 199* 128
POWDER-TONGUE
BEAR TRAP MEADOW 7900 -M .0 * -M 15.9 *
BIG GOOSE 7990 .0 -M * 22.2 -M *
BONE SPRINGS DIV 9350 .2 1.4 8* 29.7 24.5 121
BURGESS JUNCTION 7880 .0 .0 100* 21.4 19.5 110
CLOUD PEAK RESERVOIR 9860 .0 1.7 0* 28.7 23.7 121
DOME LAKE 8880 -M .5 * 19.9 22.2 90
GRAVE SPRINGS 8550 .0 .0 100* -M 18.5 *
HANSEN SAWMILL 8760 .2 .0 * 20.2 15.4 133
MIDDLE POWDER 7760 .0 .0 100* -M 20.4 *
POWDER RIVER PASS 9480 .2 .0 * 26.2 20.4 129
SUCKER CREEK 8880 .2 .2 100* 25.9 22.9 114
TIE CREEK 6870 .0 -M * 22.7 18.7 122
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Basin wide percent of average 7* 117
BELLE FOURCHE
BLIND PARK 6890 .2 .0 * 27.2 21.2 128
NORTH RAPID CREEK 6130 .0 -M * 25.2 -M *
WARREN PEAK 6520 .2 .0 * 27.2 15.9 172
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Basin wide percent of average * 147
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 32.4 32.0 102
DIVIDE PEAK 8800 .0 .3 0* 35.8 31.9 113
ELK RIVER 8700 .0 .0 100* 32.3 25.9 126
JOE WRIGHT 10120 .0 4.3 0 39.8 36.8 109
NORTH FRENCH CREEK 10100 16.2 6.5 250 42.9 33.8 127
OLD BATTLE 10000 7.8 6.0 129 53.5 41.3 130
SOUTH BRUSH CREEK 8400 5.8 .0 * 29.4 25.2 117
TOWER 10500 22.9 18.9 121 54.0 51.2 106
WEBBER SPRINGS 9200 .0 1.0 0* 39.2 35.3 112
WILLOW CREEK PASS 9540 .0 .0 100* 20.7 19.9 104
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Basin wide percent of average 127* 115
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 -M 2.0 * 35.7 28.5 125
CASPER MTN. 7900 .2 .5 21* 28.2 24.9 113
DEADMAN HILL 10220 .0 1.9 0* 27.7 26.2 106
DEER PARK 9700 1.7 -M * 38.0 -M *
LAPRELE CREEK 8320 .0 .0 100* 26.9 19.9 135
RENO HILL 8400 .0 .5 0* 30.2 26.2 116
ROACH 9700 .0 .6 0* 30.7 31.7 97
SAND LAKE 10080 20.2 8.1 250 44.8 30.4 148
SOUTH PASS 9040 -M 2.0 * 34.8 25.7 136
WINDY PEAK 7840 .0 .0 100* 22.9 17.4 132
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Basin wide percent of average 177* 122
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 24.9 21.7 115
DIVIDE PEAK 8800 .0 .3 0* 35.8 31.9 113
OLD BATTLE 10000 7.8 6.0 129 53.5 41.3 130
SANDSTONE RS 8150 .0 .0 100* 29.2 26.9 109
WHISKEY PARK 8950 .2 .3 50* 42.3 39.3 108
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Basin wide percent of average 122* 116
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.9 21.9 105
BLIND BULL SUM 8650 4.3 4.5 94 31.7 30.7 104
EAST RIM DIVIDE 7930 .0 .0 100* 20.9 20.4 103
ELKHART PARK G.S. 9400 .0 .0 100* 24.2 21.4 114
GROS VENTRE SUMMIT 8775 .0 .0 100* 23.4 21.4 110
KENDALL R.S. 7740 .0 .0 100* 22.4 20.9 108
LOOMIS PARK 8240 .0 .0 100* 27.9 25.2 111
NEW FORK LAKE 8340 .0 .0 100* 20.4 19.4 106
SNIDER BASIN 8250 .0 .0 100* 26.2 20.4 129
SPRING CREEK DIVIDE 9000 2.8 .0 * 39.8 35.3 113
TRIPLE PEAK 8500 .0 .0 100* 42.0 40.7 104
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Basin wide percent of average 94* 109
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 20.4 17.9 114
HEWINTA 9500 .0 .0 100* 22.5 20.5 110
HICKERSON PARK 9150 .0 .0 100* 17.4 16.7 104
HOLE-IN-ROCK 9150 .0 .0 100* 17.9 16.7 107
INDIAN CREEK 9425 7.3 .0 * 37.8 33.8 113
KELLEY R.S. 8180 .0 .0 100* 27.7 25.2 110
STEEL CREEK PARK 10100 1.0 1.9 53* 27.0 22.4 121
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Basin wide percent of average 53* 112
UPPER BEAR RIVER
BUG LAKE 7950 .2 .0 * 31.9 26.0 123
HAYDEN FORK 9400 .0 .0 100* 31.2 27.9 113
KELLEY R.S. 8180 .0 .0 100* 27.7 25.2 110
LILY LAKE 9050 .0 .0 100* 27.7 22.7 123
MONTE CRISTO 8960 -M 1.9 * 41.3 35.3 118
SALT RIVER SUMMIT 7600 .3 .0 * 26.0 22.7 116
TRIAL LAKE 9960 .5 2.0 25* 34.3 33.3 104
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Basin wide percent of average 25* 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.