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 1 , 2003
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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* 25.5 27.1 94
COTTONWOOD CREEK 7600 .0 5.1 0 28.1 35.8 78
GRANITE CREEK 6770 .2 .8 25* 19.4 24.9 78
GRASSY LAKE 7265 1.0 14.0 7 40.3 45.1 89
GROS VENTRE SUMMIT 8775 .0 3.7 0 14.4 17.7 81
LEWIS LAKE DIVIDE 7860 5.3 17.9 30 36.6 45.4 81
PHILLIPS BENCH 8200 -M 14.0 * -M 36.6 *
SALT RIVER SUMMIT 7600 .0 .0 100* 16.1 24.1 67
SNAKE RIVER STATION 6920 .1 .0 * 25.3 28.4 89
SPRING CREEK DIVIDE 9000 4.7 15.0 31 26.6 33.1 80
THUMB DIVIDE 7980 .0 1.9 0* 21.6 24.8 87
TOGWOTEE PASS 9580 15.2 21.9 69 28.5 32.7 87
TWO OCEAN PLATEAU 9360 23.6 25.2 94 32.2 36.3 89
WILLOW CREEK 8450 .0 14.3 0 40.8 42.6 96
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Basin wide percent of average 42 85
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 22.3 20.1 111 28.0 27.0 104
BLACK BEAR 8170 25.0 26.1 96 41.5 50.3 83
CANYON 8090 .6 1.3 46* 20.0 20.5 98
FISHER CREEK 9100 35.5 30.1 118 42.6 46.7 91
MADISON PLATEAU 7750 1.7 9.0 19 28.7 34.3 84
NORTHEAST ENTRANCE 7350 .1 .4 25* 17.8 17.6 101
PARKER PEAK 9400 13.2 18.5 71 25.9 23.2 112
SYLVAN LAKE 8420 6.3 11.4 55 30.1 29.0 104
THUMB DIVIDE 7980 .0 1.9 0* 21.6 24.8 87
TWO OCEAN PLATEAU 9360 23.6 25.2 94 32.2 36.3 89
WHISKEY CREEK 6800 .3 1.2 25* 19.8 27.3 73
WHITE MILL 8700 22.9 18.0 127 30.5 35.2 87
WOLVERINE 7650 .0 .0 100* 15.7 18.3 86
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Basin wide percent of average 93 91
WIND RIVER
BURROUGHS CREEK 8750 .7 3.4 21 23.7 22.6 105
COLD SPRINGS 9630 .3 1.1 27 13.5 17.1 79
DEER PARK 9700 .6 8.0 8 22.7 30.9 73
HOBBS PARK 10100 .2 10.1 2 17.7 21.0 84
LITTLE WARM 9370 .2 1.9 11 15.3 20.0 76
SOUTH PASS 9040 .0 6.3 0 18.4 26.0 71
ST. LAWRENCE ALT 8620 .1 .7 14* 11.8 15.2 78
TOGWOTEE PASS 9580 15.2 21.9 69 28.5 32.7 87
TOWNSEND CREEK 8700 .0 1.7 0 15.5 18.8 82
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Basin wide percent of average 31 82
BIGHORN BASIN
BALD MTN. 9380 10.0 16.7 60 22.1 25.3 87
BEAR TRAP MEADOW 8200 .1 .0 * 13.2 14.2 93
BLACKWATER 9780 19.9 24.7 81 28.1 28.9 97
BONE SPRINGS DIV 9350 5.4 8.2 66 22.0 22.3 99
EVENING STAR 9200 22.4 26.7 84 39.1 34.4 114
GRAVE SPRINGS 8550 .0 1.8 0 12.8 16.1 80
KIRWIN 9550 -M 5.5 * 17.8 17.5 102
MARQUETTE 8760 3.9 4.2 93 21.6 18.0 120
MIDDLE POWDER 7760 .0 2.6 0 11.7 19.1 61
OWL CREEK 8975 .4 .5 80* 9.1 11.1 82
POWDER RIVER PASS 9480 .3 2.3 13 17.2 19.6 88
SHELL CREEK 9580 2.9 10.4 28 18.0 20.5 88
SYLVAN LAKE 8420 6.3 11.4 55 30.1 29.0 104
SYLVAN ROAD 7120 .0 .0 100* 21.8 23.3 94
TIMBER CREEK 7950 .0 .5 0* 12.9 14.4 90
YOUNTS PEAK 8350 1.7 7.0 24 20.0 22.1 90
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Basin wide percent of average 63 95
SHOSHONE RIVER
BLACKWATER 9780 19.9 24.7 81 28.1 28.9 97
EVENING STAR 9200 22.4 26.7 84 39.1 34.4 114
KIRWIN 9550 -M 5.5 * 17.8 17.5 102
MARQUETTE 8760 3.9 4.2 93 21.6 18.0 120
SYLVAN LAKE 8420 6.3 11.4 55 30.1 29.0 104
SYLVAN ROAD 7120 .0 .0 100* 21.8 23.3 94
YOUNTS PEAK 8350 1.7 7.0 24 20.0 22.1 90
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Basin wide percent of average 73 103
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .1 .0 * 13.2 14.2 93
BIG GOOSE 7990 .5 2.7 19 19.3 16.4 118
BONE SPRINGS DIV 9350 5.4 8.2 66 22.0 22.3 99
BURGESS JUNCTION 7880 .0 2.6 0 19.1 18.5 103
CLOUD PEAK RESERVOIR 9860 3.4 7.7 44 19.9 21.7 92
DOME LAKE 8880 .1 3.2 3 20.7 20.6 100
GRAVE SPRINGS 8550 .0 1.8 0 12.8 16.1 80
HANSEN SAWMILL 8360 .0 .2 0* 15.0 14.1 106
MIDDLE POWDER 7760 .0 2.6 0 11.7 19.1 61
POWDER RIVER PASS 9480 .3 2.3 13 17.2 19.6 88
SUCKER CREEK 8880 .3 3.6 8 22.8 21.5 106
TIE CREEK 6870 .0 .0 100* 19.6 17.2 114
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Basin wide percent of average 29 96
BELLE FOURCHE
BLIND PARK 6890 .3 .0 * 14.9 17.9 83
COLE CANYON 5910 .1 -M * 13.3 -M *
NORTH RAPID CREEK 6130 .1 .0 * 13.4 14.0 96
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Basin wide percent of average * 89
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 2.0 0* 31.4 32.2 98
DIVIDE PEAK 8800 .2 3.7 5 27.3 27.5 99
ELK RIVER 8700 .5 1.3 38* 25.4 26.0 98
JOE WRIGHT 10120 18.8 17.0 111 39.0 34.8 112
NORTH FRENCH CREEK 10100 20.4 23.9 85 38.9 34.3 113
OLD BATTLE 10000 21.5 25.6 84 42.8 44.2 97
SAGE CREEK BASIN 7850 .2 2.1 10 16.7 15.9 105
SOUTH BRUSH CREEK 8400 .3 1.7 18 24.7 23.6 105
TOWER 10500 31.4 42.5 74 55.4 50.0 111
WEBBER SPRINGS 9200 .2 6.5 3 31.9 34.7 92
WILLOW CREEK PASS 9540 5.2 3.2 162 21.9 18.8 116
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Basin wide percent of average 76 104
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.2 11.6 10 28.2 31.1 91
CASPER MTN. 7900 .1 4.2 2 16.9 24.0 70
DEADMAN HILL 10220 9.0 11.2 80 26.9 24.7 109
DEER PARK 9700 .6 8.0 8 22.7 30.9 73
LAPRELE CREEK 8320 -M .8 * 18.4 20.1 92
RENO HILL 8400 .1 3.4 3 22.6 24.7 91
ROACH 9700 2.1 5.9 36 25.8 26.4 98
SAND LAKE 10080 24.8 25.8 96 36.6 34.3 107
SOUTH PASS 9040 .0 6.3 0 18.4 26.0 71
WINDY PEAK 7840 .2 .1 200* 18.6 17.1 109
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Basin wide percent of average 50 91
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .2 .0 * 20.5 20.9 98
DIVIDE PEAK 8800 .2 3.7 5 27.3 27.5 99
OLD BATTLE 10000 21.5 25.6 84 42.8 44.2 97
SANDSTONE RS 8150 .6 .0 * 24.6 24.8 99
WHISKEY PARK 8950 -M 13.6 * 35.6 37.8 94
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Basin wide percent of average 74* 97
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 1.4 0* 14.5 18.6 78
BLIND BULL SUM 8650 7.2 17.8 40 20.4 28.1 73
EAST RIM DIVIDE 7930 .0 1.5 0 12.0 16.1 75
ELKHART PARK G.S. 9400 .0 3.3 0 15.0 19.0 79
GROS VENTRE SUMMIT 8775 .0 3.7 0 14.4 17.7 81
KENDALL R.S. 7740 .0 .0 100* 15.3 18.6 82
LOOMIS PARK 8240 .0 2.3 0 19.2 22.5 85
NEW FORK LAKE 8340 .0 .0 100* -M 15.9 *
SNIDER BASIN 8250 .0 .0 100* 15.0 20.4 74
SPRING CREEK DIVIDE 9000 4.7 15.0 31 26.6 33.1 80
TRIPLE PEAK 8500 -M 4.8 * 30.9 31.9 97
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Basin wide percent of average 26 81
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 * 14.1 17.0 83
HEWINTA 9500 .0 .6 0* 16.4 20.3 81
HICKERSON PARK 9150 .0 .0 100* 13.0 12.6 103
HOLE-IN-ROCK 9150 .0 .0 100* 13.8 12.2 113
INDIAN CREEK 9425 2.7 14.7 18 23.8 32.5 73
KELLEY R.S. 8180 .0 1.4 0* 17.1 26.2 65
STEEL CREEK PARK 10100 6.1 11.8 52 19.0 23.2 82
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Basin wide percent of average 31* 81
UPPER BEAR RIVER
BUG LAKE 7950 .1 2.6 4 20.6 25.1 82
HAYDEN FORK 9400 .0 1.4 0* 21.7 28.5 76
KELLEY R.S. 8180 .0 1.4 0* 17.1 26.2 65
LILY LAKE 9050 .0 1.4 0* 19.0 24.1 79
MONTE CRISTO 8960 -M 12.5 * 26.4 34.0 78
SALT RIVER SUMMIT 7600 .0 .0 100* 16.1 24.1 67
TRIAL LAKE 9960 .0 14.5 0 23.0 33.3 69
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Basin wide percent of average 0* 74
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Average Snow Water Equivalent and
Total Precipitation values
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 1971-2000.
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.