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 FRIDAY: JUNE 18 , 1999
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 .0 .0 100* 34.3 28.9 119
COTTONWOOD CREEK 7600 .0 .0 100* 40.4 32.3 126
GRANITE CREEK 6770 .2 .0 * 31.9 31.2 102
GRASSY LAKE 7265 2.4 .0 * 55.8 47.9 117
GROS VENTRE SUMMIT 8775 .0 .0 100* 23.4 21.2 111
LEWIS LAKE DIVIDE 7860 9.2 .0 * 50.4 48.8 104
PHILLIPS BENCH 8200 7.8 .0 * 41.4 38.3 109
SALT RIVER SUMMIT 7600 .3 .0 * 25.9 22.4 116
SNAKE RIVER STATION 6920 .0 .0 100* 34.7 33.7 103
SPRING CREEK DIVIDE 9000 12.4 .0 * 39.8 34.9 114
THUMB DIVIDE 7980 .0 .0 100* 30.9 27.2 115
TOGWOTEE PASS 9580 -M 11.0 * 39.0 36.5 107
TWO OCEAN PLATEAU 9360 28.4 12.9 222 41.5 39.8 105
WILLOW CREEK 8450 .0 .0 100* 54.2 41.4 131
----- -----
Basin wide percent of average 222* 113
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 14.9 8.1 183 30.7 26.5 116
BLACK BEAR 7950 35.7 11.6 307 65.5 52.8 125
CANYON 7940 .2 .3 50* 26.2 20.4 129
FISHER CREEK 9100 33.9 18.5 184 48.3 49.3 98
MADISON PLATEAU 7750 -M .5 * 42.5 35.0 122
NORTHEAST ENTRANCE 7350 .0 .0 100* 20.4 18.0 113
PARKER PEAK 9400 8.5 9.9 87 -M 23.4 *
SYLVAN LAKE 8420 8.5 5.0 172 -M 28.2 *
THUMB DIVIDE 7980 .0 .0 100* 30.9 27.2 115
TWO OCEAN PLATEAU 9360 28.4 12.9 222 41.5 39.8 105
WHISKEY CREEK 6800 -M .0 * -M 29.4 *
WHITE MILL 8700 16.5 9.4 178 33.5 38.5 88
WOLVERINE 7650 .0 .0 100* 17.4 19.5 90
----- -----
Basin wide percent of average 195 110
WIND RIVER
BURROUGHS CREEK 8750 1.9 .0 * 27.0 23.5 115
COLD SPRINGS 9630 .0 .0 100* 26.9 17.4 155
DEER PARK 9700 9.5 -M * 37.9 -M *
HOBBS PARK 10100 13.5 2.9 463 32.0 22.2 145
LITTLE WARM 9620 .0 .0 100* 28.4 20.4 139
SOUTH PASS 9040 -M 3.3 * 34.8 25.4 137
ST. LAWRENCE ALT 8620 .0 .0 100* 23.7 16.0 149
TOGWOTEE PASS 9580 -M 11.0 * 39.0 36.5 107
TOWNSEND CREEK 8700 .0 .0 100* 28.4 19.9 143
----- -----
Basin wide percent of average 463* 133
BIGHORN BASIN
BALD MTN. 9375 -M 7.8 * 29.2 26.7 109
BEAR TRAP MEADOW 7900 .0 .0 100* 20.4 15.5 133
BLACKWATER 9780 27.2 7.0 395 34.5 26.4 132
BONE SPRINGS DIV 9350 2.2 2.2 100 29.4 24.0 123
EVENING STAR 9200 20.7 13.5 155 45.0 32.4 139
GRAVE SPRINGS 8550 .2 .0 * 21.4 18.0 119
KIRWIN 9550 1.7 .9 200* 24.7 17.7 140
MARQUETTE 8760 1.0 .7 143* 24.9 18.9 132
MIDDLE POWDER 7760 .0 .0 100* 22.9 19.9 116
OWL CREEK 8975 .0 .0 100* 19.7 11.9 167
POWDER RIVER PASS 9480 .0 .0 100* 25.9 19.9 131
SHELL CREEK 9580 .6 3.3 19 25.2 21.9 116
SYLVAN LAKE 8420 8.5 5.0 172 -M 28.2 *
SYLVAN ROAD 8120 .0 .0 100* 25.4 23.7 108
TIMBER CREEK 7950 .0 .0 100* 20.7 15.0 138
YOUNTS PEAK 8350 1.0 1.7 59* 25.9 23.9 109
----- -----
Basin wide percent of average 186* 126
SHOSHONE RIVER
BLACKWATER 9780 27.2 7.0 395 34.5 26.4 132
EVENING STAR 9200 20.7 13.5 155 45.0 32.4 139
KIRWIN 9550 1.7 .9 200* 24.7 17.7 140
MARQUETTE 8760 1.0 .7 143* 24.9 18.9 132
SYLVAN LAKE 8420 8.5 5.0 172 -M 28.2 *
SYLVAN ROAD 8120 .0 .0 100* 25.4 23.7 108
YOUNTS PEAK 8350 1.0 1.7 59* 25.9 23.9 109
----- -----
Basin wide percent of average 211* 127
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 20.4 15.5 133
BIG GOOSE 7990 .0 -M * 22.2 -M *
BONE SPRINGS DIV 9350 2.2 2.2 100 29.4 24.0 123
BURGESS JUNCTION 7880 .0 .0 100* 21.4 19.2 113
CLOUD PEAK RESERVOIR 9860 .3 2.8 8 28.7 23.2 124
DOME LAKE 8880 -M .7 * 20.2 21.7 93
GRAVE SPRINGS 8550 .2 .0 * 21.4 18.0 119
HANSEN SAWMILL 8760 .2 .0 * 20.2 14.9 137
MIDDLE POWDER 7760 .0 .0 100* 22.9 19.9 116
POWDER RIVER PASS 9480 .0 .0 100* 25.9 19.9 131
SUCKER CREEK 8880 .0 .2 0* 26.2 22.4 118
TIE CREEK 6870 .0 -M * 22.7 18.4 123
----- -----
Basin wide percent of average 47* 120
BELLE FOURCHE
BLIND PARK 6890 .2 .0 * 27.2 20.5 133
NORTH RAPID CREEK 6130 .0 -M * 25.2 -M *
WARREN PEAK 6520 .0 .0 100* -M 15.4 *
----- -----
Basin wide percent of average * 133*
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 32.3 31.7 102
DIVIDE PEAK 8800 .0 .3 0* 35.8 31.7 113
ELK RIVER 8700 .0 .0 100* 32.0 25.5 126
JOE WRIGHT 10120 5.8 6.1 94 39.7 36.3 110
NORTH FRENCH CREEK 10100 22.4 10.5 214 43.2 33.5 129
OLD BATTLE 10000 18.9 8.0 236 52.9 41.0 130
SOUTH BRUSH CREEK 8400 6.0 .0 * 29.5 24.9 119
TOWER 10500 30.9 24.2 128 53.8 50.8 107
WEBBER SPRINGS 9200 .0 1.7 0* 38.5 34.9 111
WILLOW CREEK PASS 9540 .0 .0 100* 20.2 19.5 104
----- -----
Basin wide percent of average 154* 115
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 6.3 3.3 191 35.8 28.2 127
CASPER MTN. 7900 .3 .9 25* 28.2 24.4 116
DEADMAN HILL 10220 .0 3.2 0 27.7 25.9 107
DEER PARK 9700 9.5 -M * 37.9 -M *
LAPRELE CREEK 8320 .0 .0 100* 26.9 19.5 138
RENO HILL 8400 .0 .6 0* 30.0 25.9 117
ROACH 9700 .0 .0 0* 30.4 31.4 97
SAND LAKE 10080 29.7 11.5 261 44.4 29.9 149
SOUTH PASS 9040 -M 3.3 * 34.8 25.4 137
WINDY PEAK 7840 .0 .0 100* 23.0 17.2 135
----- -----
Basin wide percent of average 181* 124
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 24.9 21.5 116
DIVIDE PEAK 8800 .0 .3 0* 35.8 31.7 113
OLD BATTLE 10000 18.9 8.0 236 52.9 41.0 130
SANDSTONE RS 8150 .0 .0 100* 28.9 26.7 109
WHISKEY PARK 8950 .0 .3 0* 42.2 39.0 108
----- -----
Basin wide percent of average 222* 116
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.9 21.5 107
BLIND BULL SUM 8650 11.0 7.3 150 31.7 30.4 104
EAST RIM DIVIDE 7930 .0 .0 100* 20.7 20.2 103
ELKHART PARK G.S. 9400 .0 .0 100* 24.2 21.2 114
GROS VENTRE SUMMIT 8775 .0 .0 100* 23.4 21.2 111
KENDALL R.S. 7740 .0 .0 100* 22.4 20.7 109
LOOMIS PARK 8240 .0 .0 100* 27.9 24.9 112
NEW FORK LAKE 8340 .0 .0 100* 20.2 19.2 106
SNIDER BASIN 8250 .0 .0 100* 26.2 20.2 131
SPRING CREEK DIVIDE 9000 12.4 .0 * 39.8 34.9 114
TRIPLE PEAK 8500 .0 .0 100* 41.9 40.3 105
----- -----
Basin wide percent of average 150* 110
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 20.4 17.7 116
HEWINTA 9500 .0 .0 100* 22.5 20.2 112
HICKERSON PARK 9150 .3 .0 * 17.2 16.4 105
HOLE-IN-ROCK 9150 .0 .0 100* 17.9 16.4 109
INDIAN CREEK 9425 14.9 .0 * 37.5 33.4 113
KELLEY R.S. 8180 .0 .0 100* 27.7 24.9 111
STEEL CREEK PARK 10100 8.2 3.0 274 26.7 21.9 123
----- -----
Basin wide percent of average 274* 113
UPPER BEAR RIVER
BUG LAKE 7950 .2 .0 * 31.9 25.9 124
HAYDEN FORK 9400 .0 .0 100* 31.0 27.4 114
KELLEY R.S. 8180 .0 .0 100* 27.7 24.9 111
LILY LAKE 9050 .0 .0 100* 27.7 22.4 125
MONTE CRISTO 8960 1.2 3.2 39 41.3 34.9 119
SALT RIVER SUMMIT 7600 .3 .0 * 25.9 22.4 116
TRIAL LAKE 9960 2.0 3.3 61 34.3 32.9 104
----- -----
Basin wide percent of average 50* 116
-----------------------------------------------------------------------------
-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.
----------------------------------------------------------------------------
-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.