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 MONDAY: JULY 5 , 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* 34.4 29.9 116
COTTONWOOD CREEK 7600 .0 .0 100* 40.8 33.2 123
GRANITE CREEK 6770 .2 .0 * 31.9 32.4 99
GRASSY LAKE 7265 .0 .0 100* 56.0 49.3 114
GROS VENTRE SUMMIT 8775 .0 .0 100* 23.4 21.9 107
LEWIS LAKE DIVIDE 7860 .0 .0 100* 51.3 50.2 103
PHILLIPS BENCH 8200 .3 .0 * 41.7 39.5 106
SALT RIVER SUMMIT 7600 .2 .0 * 26.2 23.2 113
SNAKE RIVER STATION 6920 .0 .0 100* 35.3 34.7 102
SPRING CREEK DIVIDE 9000 .0 .0 100* 39.8 35.8 112
THUMB DIVIDE 7980 .0 .0 100* 31.7 27.9 114
TOGWOTEE PASS 9580 -M .0 * 39.4 37.8 105
TWO OCEAN PLATEAU 9360 9.7 .0 * 43.0 41.2 105
WILLOW CREEK 8450 .0 .0 100* 54.4 42.7 128
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Basin wide percent of average * 110
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .0 1.4 0* 32.3 27.9 117
BLACK BEAR 7950 9.9 .0 1089* 65.6 54.8 120
CANYON 7940 -M .0 * 26.9 21.9 124
FISHER CREEK 9100 -M 4.3 * 50.2 51.3 98
MADISON PLATEAU 7750 -M .0 * 42.7 36.7 117
NORTHEAST ENTRANCE 7350 .0 .0 100* 21.4 19.4 111
PARKER PEAK 9400 .0 2.8 0 -M 25.0 *
SYLVAN LAKE 8420 -M .0 * -M 29.9 *
THUMB DIVIDE 7980 .0 .0 100* 31.7 27.9 114
TWO OCEAN PLATEAU 9360 9.7 .0 * 43.0 41.2 105
WHISKEY CREEK 6800 .0 .0 100* 34.8 30.9 113
WHITE MILL 8700 4.0 1.5 267* 28.7 40.3 72
WOLVERINE 7650 .0 .0 100* 18.9 20.9 91
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Basin wide percent of average 213* 107
WIND RIVER
BURROUGHS CREEK 8750 .3 .0 * 27.4 24.5 112
COLD SPRINGS 9630 .0 .0 100* 26.9 18.4 147
DEER PARK 9700 .0 -M * 38.2 -M *
HOBBS PARK 10100 .7 .2 700* 32.0 23.4 137
LITTLE WARM 9620 .2 .0 * 28.5 21.5 133
SOUTH PASS 9040 -M .0 * 34.7 26.7 131
ST. LAWRENCE ALT 8620 .0 .0 100* 23.9 17.0 141
TOGWOTEE PASS 9580 -M .0 * 39.4 37.8 105
TOWNSEND CREEK 8700 .0 .0 100* 28.5 21.0 136
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Basin wide percent of average 700* 127
BIGHORN BASIN
BALD MTN. 9375 .0 .6 0* 29.9 28.0 107
BEAR TRAP MEADOW 7900 .0 .0 100* 21.5 16.7 130
BLACKWATER 9780 6.3 1.7 371* 35.7 28.4 126
BONE SPRINGS DIV 9350 .3 .0 * 29.9 25.5 118
EVENING STAR 9200 .3 4.5 5 46.8 34.8 135
GRAVE SPRINGS 8550 .2 .0 * 21.7 19.4 112
KIRWIN 9550 .0 .0 100* 25.0 19.0 132
MARQUETTE 8760 .0 .0 100* 25.4 20.2 126
MIDDLE POWDER 7760 .0 .0 100* 28.4 21.4 133
OWL CREEK 8975 .0 .0 100* 19.9 13.0 155
POWDER RIVER PASS 9480 .0 .0 100* 26.4 21.2 125
SHELL CREEK 9580 .0 .0 100* 26.0 23.5 111
SYLVAN LAKE 8420 -M .0 * -M 29.9 *
SYLVAN ROAD 8120 -M .0 * -M 25.4 *
TIMBER CREEK 7950 .0 .0 100* 20.7 16.2 128
YOUNTS PEAK 8350 .0 .0 100* 27.0 25.2 108
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Basin wide percent of average 96* 124
SHOSHONE RIVER
BLACKWATER 9780 6.3 1.7 371* 35.7 28.4 126
EVENING STAR 9200 .3 4.5 5 46.8 34.8 135
KIRWIN 9550 .0 .0 100* 25.0 19.0 132
MARQUETTE 8760 .0 .0 100* 25.4 20.2 126
SYLVAN LAKE 8420 -M .0 * -M 29.9 *
SYLVAN ROAD 8120 -M .0 * -M 25.4 *
YOUNTS PEAK 8350 .0 .0 100* 27.0 25.2 108
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Basin wide percent of average 105* 126
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 21.5 16.7 130
BIG GOOSE 7990 .0 -M * 22.5 -M *
BONE SPRINGS DIV 9350 .3 .0 * 29.9 25.5 118
BURGESS JUNCTION 7880 .2 .0 * 21.7 20.4 106
CLOUD PEAK RESERVOIR 9860 .0 .0 100* 28.7 24.9 116
DOME LAKE 8880 .3 .0 * 20.9 23.0 91
GRAVE SPRINGS 8550 .2 .0 * 21.7 19.4 112
HANSEN SAWMILL 8760 .0 .0 100* 20.2 16.2 125
MIDDLE POWDER 7760 .0 .0 100* 28.4 21.4 133
POWDER RIVER PASS 9480 .0 .0 100* 26.4 21.2 125
SUCKER CREEK 8880 .0 .0 100* 27.4 23.9 115
TIE CREEK 6870 .0 -M * 23.4 19.7 119
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Basin wide percent of average * 117
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 27.2 22.5 121
NORTH RAPID CREEK 6130 .0 -M * 25.4 -M *
WARREN PEAK 6520 .3 .0 * 27.2 17.0 161
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Basin wide percent of average * 138
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 32.7 32.7 100
DIVIDE PEAK 8800 .0 .0 100* 35.8 32.3 111
ELK RIVER 8700 .0 .0 100* 32.3 26.4 122
JOE WRIGHT 10120 .0 1.0 0* 39.9 37.8 106
NORTH FRENCH CREEK 10100 .0 .0 100* 42.8 34.7 124
OLD BATTLE 10000 1.4 1.9 74* 53.3 42.3 127
SOUTH BRUSH CREEK 8400 5.5 .0 * 29.2 26.2 112
TOWER 10500 .0 7.3 0 54.0 51.9 105
WEBBER SPRINGS 9200 .0 .0 100* 39.3 36.0 109
WILLOW CREEK PASS 9540 .0 .0 100* 19.7 20.7 95
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Basin wide percent of average 14* 112
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 3.5 .0 * 35.8 29.2 123
CASPER MTN. 7900 .2 .0 * 27.9 25.9 109
DEADMAN HILL 10220 .2 .0 * 27.7 27.2 102
DEER PARK 9700 .0 -M * 38.2 -M *
LAPRELE CREEK 8320 .0 .0 100* 27.2 20.9 131
RENO HILL 8400 .0 .0 100* 30.4 27.2 113
ROACH 9700 .0 .0 100* 30.5 32.5 94
SAND LAKE 10080 .0 2.0 0* 44.4 31.2 143
SOUTH PASS 9040 -M .0 * 34.7 26.7 131
WINDY PEAK 7840 .0 .0 100* 23.9 18.4 131
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Basin wide percent of average 0* 119
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 24.4 22.0 111
DIVIDE PEAK 8800 .0 .0 100* 35.8 32.3 111
OLD BATTLE 10000 1.4 1.9 74* 53.3 42.3 127
SANDSTONE RS 8150 .6 .0 * 29.2 27.4 107
WHISKEY PARK 8950 .2 .0 * 42.3 39.8 107
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Basin wide percent of average 74* 113
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.9 22.4 103
BLIND BULL SUM 8650 .0 .0 100* 31.9 31.2 103
EAST RIM DIVIDE 7930 .0 .0 100* 20.9 20.9 100
ELKHART PARK G.S. 9400 .0 .0 100* 24.0 22.0 110
GROS VENTRE SUMMIT 8775 .0 .0 100* 23.4 21.9 107
KENDALL R.S. 7740 .0 .0 100* 22.4 21.4 105
LOOMIS PARK 8240 .0 .0 100* 27.9 25.9 108
NEW FORK LAKE 8340 .0 .0 100* 20.4 19.9 103
SNIDER BASIN 8250 .0 .0 100* 26.2 20.9 125
SPRING CREEK DIVIDE 9000 .0 .0 100* 39.8 35.8 112
TRIPLE PEAK 8500 .0 .0 100* 41.9 41.5 101
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Basin wide percent of average * 107
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 20.4 18.4 111
HEWINTA 9500 .0 .0 100* 22.5 21.4 106
HICKERSON PARK 9150 .2 .0 * 17.7 17.5 101
HOLE-IN-ROCK 9150 .0 .0 100* 17.9 17.5 103
INDIAN CREEK 9425 1.2 .0 * 37.4 34.4 109
KELLEY R.S. 8180 .0 .0 100* 27.7 25.9 108
STEEL CREEK PARK 10100 .0 .0 100* 26.7 23.7 113
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Basin wide percent of average * 108
UPPER BEAR RIVER
BUG LAKE 7950 .2 .0 * 32.0 26.5 121
HAYDEN FORK 9400 .0 .0 100* 31.2 28.7 109
KELLEY R.S. 8180 .0 .0 100* 27.7 25.9 108
LILY LAKE 9050 -M .0 * 27.7 23.4 119
MONTE CRISTO 8960 -M .0 * 41.4 35.9 116
SALT RIVER SUMMIT 7600 .2 .0 * 26.2 23.2 113
TRIAL LAKE 9960 .5 .0 * 34.0 34.0 100
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Basin wide percent of average * 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.