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 27 , 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 29.4 117
COTTONWOOD CREEK 7600 .0 .0 100* 40.7 32.8 125
GRANITE CREEK 6770 .2 .0 * 31.7 31.9 100
GRASSY LAKE 7265 .0 .0 100* 55.8 48.8 115
GROS VENTRE SUMMIT 8775 .0 .0 100* 23.4 21.5 109
LEWIS LAKE DIVIDE 7860 .0 .0 100* 51.3 49.5 104
PHILLIPS BENCH 8200 .0 .0 100* 41.5 39.0 107
SALT RIVER SUMMIT 7600 .3 .0 * 26.0 22.9 115
SNAKE RIVER STATION 6920 .0 .0 100* 34.8 34.3 102
SPRING CREEK DIVIDE 9000 .3 .0 * 39.8 35.4 113
THUMB DIVIDE 7980 .0 .0 100* 31.4 27.5 114
TOGWOTEE PASS 9580 -M 3.4 * 39.0 37.3 105
TWO OCEAN PLATEAU 9360 17.9 4.0 448 42.3 40.5 105
WILLOW CREEK 8450 .0 .0 100* 54.3 42.0 130
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Basin wide percent of average 448* 111
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 1.5 3.8 41 31.2 27.2 115
BLACK BEAR 7950 21.0 4.5 478 65.5 53.9 122
CANYON 7940 .2 .2 100* 26.5 21.2 126
FISHER CREEK 9100 18.5 9.9 189 49.0 50.4 98
MADISON PLATEAU 7750 -M .3 * 42.4 35.9 119
NORTHEAST ENTRANCE 7350 .0 .0 100* 20.7 18.7 111
PARKER PEAK 9400 .0 5.5 0 -M 24.4 *
SYLVAN LAKE 8420 3.9 1.5 261* -M 29.2 *
THUMB DIVIDE 7980 .0 .0 100* 31.4 27.5 114
TWO OCEAN PLATEAU 9360 17.9 4.0 448 42.3 40.5 105
WHISKEY CREEK 6800 .0 .0 100* 34.5 30.4 114
WHITE MILL 8700 4.3 4.3 98 -M 39.4 *
WOLVERINE 7650 .0 .0 100* 18.2 20.2 90
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Basin wide percent of average 202* 111
WIND RIVER
BURROUGHS CREEK 8750 .3 .0 * 27.0 24.0 113
COLD SPRINGS 9630 .0 .0 100* 26.9 17.9 151
DEER PARK 9700 .3 -M * 38.2 -M *
HOBBS PARK 10100 1.2 1.0 111* 32.0 22.9 140
LITTLE WARM 9620 .2 .0 * 28.4 21.0 136
SOUTH PASS 9040 -M 1.0 * 34.8 26.0 134
ST. LAWRENCE ALT 8620 .0 .0 100* 23.9 16.5 145
TOGWOTEE PASS 9580 -M 3.4 * 39.0 37.3 105
TOWNSEND CREEK 8700 .0 .0 100* 28.4 20.7 138
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Basin wide percent of average 111* 130
BIGHORN BASIN
BALD MTN. 9375 .0 3.0 31 29.4 27.4 108
BEAR TRAP MEADOW 7900 .2 .0 * 20.7 16.2 128
BLACKWATER 9780 15.5 3.8 417 34.9 27.4 128
BONE SPRINGS DIV 9350 .0 .7 0* 29.5 24.9 119
EVENING STAR 9200 7.8 8.4 94 45.8 33.8 136
GRAVE SPRINGS 8550 .2 .0 * 21.4 18.9 113
KIRWIN 9550 .0 .3 0* 24.5 18.2 135
MARQUETTE 8760 .0 .3 0* 25.0 19.7 128
MIDDLE POWDER 7760 .0 .0 100* 27.7 20.9 134
OWL CREEK 8975 .0 .0 100* 19.9 12.5 161
POWDER RIVER PASS 9480 .2 .0 * 26.0 20.7 126
SHELL CREEK 9580 .0 1.0 0* 25.7 22.9 113
SYLVAN LAKE 8420 3.9 1.5 261* -M 29.2 *
SYLVAN ROAD 8120 -M .0 * -M 24.5 *
TIMBER CREEK 7950 .2 .0 * 20.7 15.7 132
YOUNTS PEAK 8350 .7 .5 140* 25.9 24.5 106
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Basin wide percent of average 149* 125
SHOSHONE RIVER
BLACKWATER 9780 15.5 3.8 417 34.9 27.4 128
EVENING STAR 9200 7.8 8.4 94 45.8 33.8 136
KIRWIN 9550 .0 .3 0* 24.5 18.2 135
MARQUETTE 8760 .0 .3 0* 25.0 19.7 128
SYLVAN LAKE 8420 3.9 1.5 261* -M 29.2 *
SYLVAN ROAD 8120 -M .0 * -M 24.5 *
YOUNTS PEAK 8350 .7 .5 140* 25.9 24.5 106
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Basin wide percent of average 191* 127
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .2 .0 * 20.7 16.2 128
BIG GOOSE 7990 .0 -M * 22.2 -M *
BONE SPRINGS DIV 9350 .0 .7 0* 29.5 24.9 119
BURGESS JUNCTION 7880 .0 .0 100* 21.4 19.9 108
CLOUD PEAK RESERVOIR 9860 .0 .0 0* 28.5 24.2 119
DOME LAKE 8880 -M .3 * 19.4 22.4 87
GRAVE SPRINGS 8550 .2 .0 * 21.4 18.9 113
HANSEN SAWMILL 8760 .0 .0 100* 20.2 15.7 129
MIDDLE POWDER 7760 .0 .0 100* 27.7 20.9 134
POWDER RIVER PASS 9480 .2 .0 * 26.0 20.7 126
SUCKER CREEK 8880 .0 .2 0* 26.2 23.2 113
TIE CREEK 6870 .0 -M * 22.7 19.0 120
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Basin wide percent of average 0* 117
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 27.2 21.7 125
NORTH RAPID CREEK 6130 .0 -M * 25.2 -M *
WARREN PEAK 6520 .2 .0 * 27.2 16.4 167
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Basin wide percent of average * 143
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 32.5 32.3 101
DIVIDE PEAK 8800 .0 .2 0* 35.8 32.0 112
ELK RIVER 8700 .0 .0 100* 32.0 26.0 124
JOE WRIGHT 10120 .0 2.8 0 39.9 37.0 108
NORTH FRENCH CREEK 10100 9.5 3.3 285 42.8 34.2 126
OLD BATTLE 10000 1.4 4.3 33 53.3 41.7 128
SOUTH BRUSH CREEK 8400 5.5 .0 * 29.2 25.5 115
TOWER 10500 13.4 14.5 92 54.2 51.4 106
WEBBER SPRINGS 9200 .0 .5 0* 39.3 35.5 111
WILLOW CREEK PASS 9540 .0 .0 100* 20.7 20.2 103
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Basin wide percent of average 95* 114
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 3.3 1.0 330* 35.7 28.7 125
CASPER MTN. 7900 .3 .3 67* 28.0 25.2 112
DEADMAN HILL 10220 .0 1.0 0* 27.7 26.5 105
DEER PARK 9700 .3 -M * 38.2 -M *
LAPRELE CREEK 8320 .0 .0 100* 26.9 20.2 134
RENO HILL 8400 .0 .3 0* 30.4 26.5 115
ROACH 9700 -M .3 * 30.5 32.0 96
SAND LAKE 10080 10.9 5.5 200 44.7 30.7 146
SOUTH PASS 9040 -M 1.0 * 34.8 26.0 134
WINDY PEAK 7840 .0 .0 100* 23.0 17.7 130
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Basin wide percent of average 182* 121
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 24.7 21.7 114
DIVIDE PEAK 8800 .0 .2 0* 35.8 32.0 112
OLD BATTLE 10000 1.4 4.3 33 53.3 41.7 128
SANDSTONE RS 8150 .3 .0 * 29.2 27.0 108
WHISKEY PARK 8950 .2 .2 100* 42.3 39.4 108
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Basin wide percent of average 34* 115
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.9 22.0 104
BLIND BULL SUM 8650 .3 2.3 9* 31.9 30.9 103
EAST RIM DIVIDE 7930 .0 .0 100* 20.9 20.5 102
ELKHART PARK G.S. 9400 .0 .0 100* 24.2 21.7 113
GROS VENTRE SUMMIT 8775 .0 .0 100* 23.4 21.5 109
KENDALL R.S. 7740 .0 .0 100* 22.5 21.0 108
LOOMIS PARK 8240 .0 .0 100* 27.9 25.5 110
NEW FORK LAKE 8340 .0 .0 100* 20.7 19.7 106
SNIDER BASIN 8250 .0 .0 100* 26.2 20.5 128
SPRING CREEK DIVIDE 9000 .3 .0 * 39.8 35.4 113
TRIPLE PEAK 8500 .0 .0 100* 42.0 40.9 103
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Basin wide percent of average 9* 109
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 20.4 18.2 113
HEWINTA 9500 .0 .0 100* 22.7 20.9 109
HICKERSON PARK 9150 .0 .0 100* 17.4 17.0 102
HOLE-IN-ROCK 9150 .0 .0 100* 17.9 17.0 105
INDIAN CREEK 9425 1.7 .0 * 38.3 34.0 113
KELLEY R.S. 8180 .0 .0 100* 27.7 25.4 109
STEEL CREEK PARK 10100 .0 1.0 0* 26.7 22.9 117
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Basin wide percent of average 0* 110
UPPER BEAR RIVER
BUG LAKE 7950 .2 .0 * 31.9 26.2 122
HAYDEN FORK 9400 .0 .0 100* 31.4 28.2 112
KELLEY R.S. 8180 .0 .0 100* 27.7 25.4 109
LILY LAKE 9050 .0 .0 100* 27.7 22.9 121
MONTE CRISTO 8960 -M 1.0 * 41.3 35.5 117
SALT RIVER SUMMIT 7600 .3 .0 * 26.0 22.9 115
TRIAL LAKE 9960 .5 1.0 50* 34.2 33.5 102
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Basin wide percent of average 50* 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.