Supercell over Laramie
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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 6 , 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* 33.0 28.2 118 COTTONWOOD CREEK 7600 5.3 .0 * 39.4 31.5 126 GRANITE CREEK 6770 1.5 1.2 137* 30.9 30.2 102 GRASSY LAKE 7265 18.7 7.8 240 53.2 46.8 114 GROS VENTRE SUMMIT 8775 4.5 .0 * 21.9 20.4 107 LEWIS LAKE DIVIDE 7860 23.9 12.9 186 49.2 47.7 104 PHILLIPS BENCH 8200 17.9 11.5 158 39.7 37.5 106 SALT RIVER SUMMIT 7600 .3 .0 * 24.9 21.7 115 SNAKE RIVER STATION 6920 .0 .0 100* 33.3 32.9 101 SPRING CREEK DIVIDE 9000 22.9 12.4 186 38.2 34.3 112 THUMB DIVIDE 7980 -M .0 * -M 26.4 * TOGWOTEE PASS 9580 -M 20.0 * -M 35.8 * TWO OCEAN PLATEAU 9360 34.3 20.2 171 39.8 38.9 103 WILLOW CREEK 8450 14.7 12.5 119 52.4 40.4 130 ----- ----- Basin wide percent of average 172* 111 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 21.7 16.0 136 29.7 25.5 117 BLACK BEAR 7950 47.8 22.7 211 63.7 51.3 124 CANYON 7940 .3 1.0 30* 24.5 19.4 127 FISHER CREEK 9100 35.8 28.2 128 46.3 47.8 98 MADISON PLATEAU 7750 -M 5.0 * -M 33.9 * NORTHEAST ENTRANCE 7350 -M .3 * -M 17.0 * PARKER PEAK 9400 16.7 16.0 104 -M 22.2 * SYLVAN LAKE 8420 17.7 11.4 156 38.0 26.9 142 THUMB DIVIDE 7980 -M .0 * -M 26.4 * TWO OCEAN PLATEAU 9360 34.3 20.2 171 39.8 38.9 103 WHISKEY CREEK 6800 1.2 .9 138* 32.8 28.2 117 WHITE MILL 8700 23.4 16.4 143 32.2 37.3 87 WOLVERINE 7650 .0 .0 100* 16.9 18.7 91 ----- ----- Basin wide percent of average 150 111 WIND RIVER BURROUGHS CREEK 8750 7.8 1.4 600* 26.2 22.9 115 COLD SPRINGS 9630 5.8 .3 2850* 26.4 16.5 161 DEER PARK 9700 17.9 -M * 35.3 -M * HOBBS PARK 10100 20.7 7.3 283 31.2 21.4 147 LITTLE WARM 9620 5.8 .5 1141* 27.2 19.7 138 SOUTH PASS 9040 9.5 8.0 121 31.7 24.4 130 ST. LAWRENCE ALT 8620 .0 .2 0* 23.2 15.2 152 TOGWOTEE PASS 9580 -M 20.0 * -M 35.8 * TOWNSEND CREEK 8700 .2 1.2 9 27.5 19.0 145 ----- ----- Basin wide percent of average 268* 140 BIGHORN BASIN BALD MTN. 9375 19.7 15.4 129 28.0 25.9 109 BEAR TRAP MEADOW 7900 .2 .0 * 20.0 14.5 139 BLACKWATER 9780 31.2 15.0 209 33.2 24.7 135 BONE SPRINGS DIV 9350 -M 6.3 * -M 22.9 * EVENING STAR 9200 28.7 21.9 132 43.4 30.7 142 GRAVE SPRINGS 8550 .2 1.4 8 20.7 16.9 124 KIRWIN 9550 11.0 3.8 295 23.9 16.7 144 MARQUETTE 8760 10.5 3.0 350 23.5 17.9 133 MIDDLE POWDER 7760 .6 1.7 36 23.2 18.7 124 OWL CREEK 8975 .5 .2 400* 18.4 11.1 166 POWDER RIVER PASS 9480 .6 .0 67* 24.5 18.7 132 SHELL CREEK 9580 10.5 8.7 121 23.4 20.4 115 SYLVAN LAKE 8420 17.7 11.4 156 38.0 26.9 142 SYLVAN ROAD 8120 .0 .7 0* 24.4 22.4 109 TIMBER CREEK 7950 .3 .3 100* 20.2 14.2 142 YOUNTS PEAK 8350 11.0 6.6 167 24.5 22.9 108 ----- ----- Basin wide percent of average 158 129 SHOSHONE RIVER BLACKWATER 9780 31.2 15.0 209 33.2 24.7 135 EVENING STAR 9200 28.7 21.9 132 43.4 30.7 142 KIRWIN 9550 11.0 3.8 295 23.9 16.7 144 MARQUETTE 8760 10.5 3.0 350 23.5 17.9 133 SYLVAN LAKE 8420 17.7 11.4 156 38.0 26.9 142 SYLVAN ROAD 8120 .0 .7 0* 24.4 22.4 109 YOUNTS PEAK 8350 11.0 6.6 167 24.5 22.9 108 ----- ----- Basin wide percent of average 177 131 POWDER-TONGUE BEAR TRAP MEADOW 7900 .2 .0 * 20.0 14.5 139 BIG GOOSE 7990 -M -M * 20.4 -M * BONE SPRINGS DIV 9350 -M 6.3 * -M 22.9 * BURGESS JUNCTION 7880 -M 1.5 * -M 18.2 * CLOUD PEAK RESERVOIR 9860 12.2 6.5 188 27.7 21.9 127 DOME LAKE 8880 -M 2.8 * 19.2 20.7 93 GRAVE SPRINGS 8550 .2 1.4 8 20.7 16.9 124 HANSEN SAWMILL 8760 .0 .6 0* 19.4 13.6 142 MIDDLE POWDER 7760 .6 1.7 36 23.2 18.7 124 POWDER RIVER PASS 9480 .6 .0 67* 24.5 18.7 132 SUCKER CREEK 8880 1.5 2.8 56 24.4 21.2 116 TIE CREEK 6870 .0 -M * 20.9 17.4 120 ----- ----- Basin wide percent of average 110* 123 BELLE FOURCHE BLIND PARK 6890 .2 .0 * 22.9 18.9 122 NORTH RAPID CREEK 6130 .2 -M * 20.2 -M * WARREN PEAK 6520 .2 .2 100* -M 14.0 * ----- ----- Basin wide percent of average 100* 122* UPPER N. PLATTE RIVER COLUMBINE 9400 .0 1.9 0* 31.0 31.2 100 DIVIDE PEAK 8800 .0 2.0 0* 33.2 31.2 107 ELK RIVER 8700 .0 .3 0* 31.0 24.9 125 JOE WRIGHT 10120 13.5 13.6 100 36.7 35.4 104 NORTH FRENCH CREEK 10100 29.5 17.7 168 41.0 32.8 126 OLD BATTLE 10000 30.7 18.9 164 50.4 40.0 127 SOUTH BRUSH CREEK 8400 6.8 .7 972* 27.9 23.9 117 TOWER 10500 41.9 38.4 110 52.3 49.8 106 WEBBER SPRINGS 9200 .2 7.5 2 36.5 34.2 108 WILLOW CREEK PASS 9540 .0 1.5 0 18.9 18.7 101 ----- ----- Basin wide percent of average 121 112 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 14.0 9.7 145 35.0 27.5 128 CASPER MTN. 7900 -M 2.7 * -M 23.4 * DEADMAN HILL 10220 8.5 8.0 107 26.4 25.0 106 DEER PARK 9700 17.9 -M * 35.3 -M * LAPRELE CREEK 8320 -M .7 * -M 18.7 * RENO HILL 8400 .3 2.3 14 28.7 24.9 116 ROACH 9700 2.8 5.3 53 28.0 30.7 92 SAND LAKE 10080 43.3 20.7 210 43.2 28.9 150 SOUTH PASS 9040 9.5 8.0 121 31.7 24.4 130 WINDY PEAK 7840 .0 .0 100* 21.4 16.2 133 ----- ----- Basin wide percent of average 146 121 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 24.0 21.2 114 DIVIDE PEAK 8800 .0 2.0 0* 33.2 31.2 107 OLD BATTLE 10000 30.7 18.9 164 50.4 40.0 127 SANDSTONE RS 8150 .0 .0 100* 27.5 26.2 105 WHISKEY PARK 8950 19.4 7.8 248 40.3 38.5 105 ----- ----- Basin wide percent of average 175* 112 UPPER GREEN RIVER BIG SANDY OPENING 9100 .3 .0 * 21.7 20.9 104 BLIND BULL SUM 8650 24.4 13.9 177 30.5 29.9 103 EAST RIM DIVIDE 7930 -M 4.5 * -M 19.5 * ELKHART PARK G.S. 9400 4.1 2.9 142 23.2 20.5 114 GROS VENTRE SUMMIT 8775 4.5 .0 * 21.9 20.4 107 KENDALL R.S. 7740 .2 .0 * 21.9 20.0 110 LOOMIS PARK 8240 -M .0 * -M 24.2 * NEW FORK LAKE 8340 .0 .0 100* 18.5 18.7 100 SNIDER BASIN 8250 .2 .0 * 24.4 19.5 125 SPRING CREEK DIVIDE 9000 22.9 12.4 186 38.2 34.3 112 TRIPLE PEAK 8500 10.5 9.5 110 40.8 39.3 104 ----- ----- Basin wide percent of average 161* 108 LOWER GREEN RIVER HAMS FORK 7840 .2 .0 * 19.9 17.2 116 HEWINTA 9500 .0 .0 100* 21.7 19.4 112 HICKERSON PARK 9150 .3 .0 * 16.5 15.6 106 HOLE-IN-ROCK 9150 .0 .2 0* 17.0 15.6 109 INDIAN CREEK 9425 25.4 11.2 227 36.5 32.8 112 KELLEY R.S. 8180 .2 .0 * 26.7 24.2 110 STEEL CREEK PARK 10100 -M 9.1 * -M 20.4 * ----- ----- Basin wide percent of average 225* 111 UPPER BEAR RIVER BUG LAKE 7950 .3 1.5 14* 31.2 25.2 124 HAYDEN FORK 9400 .5 .0 * 30.9 26.7 116 KELLEY R.S. 8180 .2 .0 * 26.7 24.2 110 LILY LAKE 9050 .0 .7 0* 27.2 21.5 127 MONTE CRISTO 8960 20.0 7.8 260 40.3 34.2 119 SALT RIVER SUMMIT 7600 .3 .0 * 24.9 21.7 115 TRIAL LAKE 9960 14.7 9.2 160 33.8 32.2 106 ----- ----- Basin wide percent of average 183* 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.