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 29 , 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 29.5 117
COTTONWOOD CREEK 7600 .0 .0 100* 40.7 32.8 124
GRANITE CREEK 6770 .2 .0 * 31.7 32.0 99
GRASSY LAKE 7265 .0 .0 100* 55.8 48.9 115
GROS VENTRE SUMMIT 8775 .0 .0 100* 23.4 21.7 109
LEWIS LAKE DIVIDE 7860 .0 .0 100* 51.3 49.8 104
PHILLIPS BENCH 8200 .0 .0 100* 41.7 39.2 107
SALT RIVER SUMMIT 7600 .2 .0 * 26.2 22.9 114
SNAKE RIVER STATION 6920 .0 .0 100* 34.8 34.3 102
SPRING CREEK DIVIDE 9000 .0 .0 100* 39.8 35.5 112
THUMB DIVIDE 7980 .0 .0 100* 31.4 27.7 114
TOGWOTEE PASS 9580 -M 1.7 * 39.0 37.3 105
TWO OCEAN PLATEAU 9360 16.4 2.0 816* 42.4 40.8 105
WILLOW CREEK 8450 .0 .0 100* 54.3 42.3 129
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Basin wide percent of average 816* 111
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .0 2.8 34 31.7 27.4 116
BLACK BEAR 7950 18.7 2.8 668* 65.5 54.3 121
CANYON 7940 .0 .2 0* 26.7 21.4 125
FISHER CREEK 9100 16.4 8.0 208 49.3 50.8 98
MADISON PLATEAU 7750 -M .2 * 42.8 36.3 118
NORTHEAST ENTRANCE 7350 .0 .0 100* 20.9 18.9 111
PARKER PEAK 9400 .0 4.5 0 -M 24.5 *
SYLVAN LAKE 8420 4.5 .9 551* -M 29.4 *
THUMB DIVIDE 7980 .0 .0 100* 31.4 27.7 114
TWO OCEAN PLATEAU 9360 16.4 2.0 816* 42.4 40.8 105
WHISKEY CREEK 6800 .0 .0 100* 34.8 30.5 115
WHITE MILL 8700 4.0 3.3 125 28.0 39.7 71
WOLVERINE 7650 .0 .0 100* 18.4 20.4 90
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Basin wide percent of average 253* 107
WIND RIVER
BURROUGHS CREEK 8750 .3 .0 * 27.0 24.2 113
COLD SPRINGS 9630 .0 .0 100* 26.9 18.0 150
DEER PARK 9700 .3 -M * 38.2 -M *
HOBBS PARK 10100 .9 .6 134* 31.9 23.0 139
LITTLE WARM 9620 .2 .0 * 28.4 21.2 135
SOUTH PASS 9040 -M .5 * 34.8 26.2 133
ST. LAWRENCE ALT 8620 .0 .0 100* 23.9 16.7 144
TOGWOTEE PASS 9580 -M 1.7 * 39.0 37.3 105
TOWNSEND CREEK 8700 .0 .0 100* 28.4 20.7 137
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Basin wide percent of average 134* 129
BIGHORN BASIN
BALD MTN. 9375 .0 1.9 0* -M 27.7 *
BEAR TRAP MEADOW 7900 .2 .0 * 20.7 16.4 127
BLACKWATER 9780 14.2 3.0 474 35.3 27.7 128
BONE SPRINGS DIV 9350 .3 .5 75* -M 25.0 *
EVENING STAR 9200 6.5 7.3 89 46.2 34.0 136
GRAVE SPRINGS 8550 .0 .0 100* 21.4 19.0 113
KIRWIN 9550 .0 .3 0* 24.5 18.4 134
MARQUETTE 8760 .0 .3 0* 25.2 19.9 127
MIDDLE POWDER 7760 .0 .0 100* 27.7 21.0 132
OWL CREEK 8975 .0 .0 100* 19.9 12.5 160
POWDER RIVER PASS 9480 .0 .0 100* 26.0 20.9 125
SHELL CREEK 9580 .0 .5 0* 25.7 23.0 112
SYLVAN LAKE 8420 4.5 .9 551* -M 29.4 *
SYLVAN ROAD 8120 -M .0 * -M 24.7 *
TIMBER CREEK 7950 .0 .0 100* 20.7 15.9 132
YOUNTS PEAK 8350 .7 .3 234* 26.0 24.7 106
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Basin wide percent of average 180* 126
SHOSHONE RIVER
BLACKWATER 9780 14.2 3.0 474 35.3 27.7 128
EVENING STAR 9200 6.5 7.3 89 46.2 34.0 136
KIRWIN 9550 .0 .3 0* 24.5 18.4 134
MARQUETTE 8760 .0 .3 0* 25.2 19.9 127
SYLVAN LAKE 8420 4.5 .9 551* -M 29.4 *
SYLVAN ROAD 8120 -M .0 * -M 24.7 *
YOUNTS PEAK 8350 .7 .3 234* 26.0 24.7 106
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Basin wide percent of average 220* 126
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .2 .0 * 20.7 16.4 127
BIG GOOSE 7990 .0 -M * 22.4 -M *
BONE SPRINGS DIV 9350 .3 .5 75* -M 25.0 *
BURGESS JUNCTION 7880 -M .0 * -M 20.0 *
CLOUD PEAK RESERVOIR 9860 .0 .5 0* 28.7 24.4 118
DOME LAKE 8880 -M .3 * 19.2 22.7 85
GRAVE SPRINGS 8550 .0 .0 100* 21.4 19.0 113
HANSEN SAWMILL 8760 .0 .0 100* 20.2 16.0 128
MIDDLE POWDER 7760 .0 .0 100* 27.7 21.0 132
POWDER RIVER PASS 9480 .0 .0 100* 26.0 20.9 125
SUCKER CREEK 8880 .0 .2 0* -M 23.4 *
TIE CREEK 6870 .2 -M * -M 19.2 *
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Basin wide percent of average 30* 117
BELLE FOURCHE
BLIND PARK 6890 .2 .0 * 27.4 22.0 125
NORTH RAPID CREEK 6130 .0 -M * 25.2 -M *
WARREN PEAK 6520 .2 .0 * 27.2 16.5 165
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Basin wide percent of average * 142
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 32.4 32.3 101
DIVIDE PEAK 8800 .0 .2 0* 35.8 32.2 112
ELK RIVER 8700 .0 .0 100* 32.3 26.2 124
JOE WRIGHT 10120 .0 2.2 0* 39.9 37.3 108
NORTH FRENCH CREEK 10100 6.1 1.7 359* 42.8 34.3 125
OLD BATTLE 10000 1.2 3.5 35* 53.3 41.8 128
SOUTH BRUSH CREEK 8400 5.5 .0 * 29.4 25.7 115
TOWER 10500 7.1 12.5 58 54.0 51.5 105
WEBBER SPRINGS 9200 .0 .3 0* 39.3 35.7 111
WILLOW CREEK PASS 9540 .0 .0 100* 19.4 20.4 96
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Basin wide percent of average 72* 113
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 3.3 .5 660* 35.4 28.9 123
CASPER MTN. 7900 .3 .3 100* 28.2 25.4 111
DEADMAN HILL 10220 .0 .5 0* 27.5 26.7 104
DEER PARK 9700 .3 -M * 38.2 -M *
LAPRELE CREEK 8320 .0 .0 100* 27.2 20.4 134
RENO HILL 8400 .0 .2 0* 30.4 26.7 114
ROACH 9700 -M .3 * 30.5 32.2 96
SAND LAKE 10080 6.5 4.1 157 44.8 30.9 146
SOUTH PASS 9040 -M .5 * 34.8 26.2 133
WINDY PEAK 7840 .0 .0 100* 23.2 17.9 130
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Basin wide percent of average 184* 120
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 24.7 21.9 114
DIVIDE PEAK 8800 .0 .2 0* 35.8 32.2 112
OLD BATTLE 10000 1.2 3.5 35* 53.3 41.8 128
SANDSTONE RS 8150 .5 .0 * 29.2 27.2 108
WHISKEY PARK 8950 .3 .2 200* 42.3 39.5 108
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Basin wide percent of average 38* 115
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.9 22.2 104
BLIND BULL SUM 8650 .2 1.2 9* 31.9 31.0 103
EAST RIM DIVIDE 7930 .0 .0 100* 20.9 20.7 101
ELKHART PARK G.S. 9400 .0 .0 100* 24.2 21.7 112
GROS VENTRE SUMMIT 8775 .0 .0 100* 23.4 21.7 109
KENDALL R.S. 7740 .0 .0 100* 22.4 21.2 106
LOOMIS PARK 8240 .0 .0 100* 27.9 25.7 109
NEW FORK LAKE 8340 .0 .0 100* 20.7 19.7 106
SNIDER BASIN 8250 .0 .0 100* 26.2 20.7 127
SPRING CREEK DIVIDE 9000 .0 .0 100* 39.8 35.5 112
TRIPLE PEAK 8500 .0 .0 100* 42.0 41.2 103
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Basin wide percent of average 9* 108
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 20.4 18.2 113
HEWINTA 9500 .0 .0 100* 22.5 20.9 108
HICKERSON PARK 9150 .0 .0 100* 17.4 17.2 102
HOLE-IN-ROCK 9150 .0 .0 100* 17.9 17.2 105
INDIAN CREEK 9425 1.2 .0 * 37.7 34.2 111
KELLEY R.S. 8180 .0 .0 100* 27.7 25.5 109
STEEL CREEK PARK 10100 .0 .5 0* 26.7 23.2 116
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Basin wide percent of average 0* 109
UPPER BEAR RIVER
BUG LAKE 7950 .2 .0 * 32.0 26.4 122
HAYDEN FORK 9400 .0 .0 100* -M 28.2 *
KELLEY R.S. 8180 .0 .0 100* 27.7 25.5 109
LILY LAKE 9050 .0 .0 100* -M 23.0 *
MONTE CRISTO 8960 -M .5 * 41.3 35.7 117
SALT RIVER SUMMIT 7600 .2 .0 * 26.2 22.9 114
TRIAL LAKE 9960 .5 .5 100* 34.2 33.7 102
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Basin wide percent of average 100* 112
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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.