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 FRIDAY: JULY 2 , 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* 34.5 29.7 117 COTTONWOOD CREEK 7600 .0 .0 100* 40.7 33.0 124 GRANITE CREEK 6770 .2 .0 * 31.7 32.3 99 GRASSY LAKE 7265 .0 .0 100* 56.2 49.2 115 GROS VENTRE SUMMIT 8775 -M .0 * -M 21.9 * LEWIS LAKE DIVIDE 7860 .0 .0 100* 51.4 49.9 104 PHILLIPS BENCH 8200 .0 .0 100* 41.7 39.3 106 SALT RIVER SUMMIT 7600 .2 .0 * 26.2 23.2 113 SNAKE RIVER STATION 6920 .0 .0 100* 35.3 34.5 103 SPRING CREEK DIVIDE 9000 .0 .0 100* 39.8 35.8 112 THUMB DIVIDE 7980 .0 .0 100* 31.5 27.9 114 TOGWOTEE PASS 9580 -M .0 * 39.5 37.5 106 TWO OCEAN PLATEAU 9360 14.1 .0 * 42.8 40.9 105 WILLOW CREEK 8450 .0 .0 100* 54.3 42.4 129 ----- ----- Basin wide percent of average * 111 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .3 1.7 13* 32.0 27.7 116 BLACK BEAR 7950 15.5 1.2 1284* 65.8 54.5 121 CANYON 7940 .0 .0 100* 26.9 21.7 125 FISHER CREEK 9100 11.5 5.5 208 49.8 51.0 98 MADISON PLATEAU 7750 -M .0 * 42.7 36.4 118 NORTHEAST ENTRANCE 7350 .0 .0 100* 21.4 19.2 112 PARKER PEAK 9400 .0 3.4 0 -M 24.9 * SYLVAN LAKE 8420 -M .0 * -M 29.7 * THUMB DIVIDE 7980 .0 .0 100* 31.5 27.9 114 TWO OCEAN PLATEAU 9360 14.1 .0 * 42.8 40.9 105 WHISKEY CREEK 6800 .0 .0 100* 34.8 30.7 114 WHITE MILL 8700 4.1 1.9 216* 28.7 39.9 72 WOLVERINE 7650 .0 .0 100* 18.9 20.7 92 ----- ----- Basin wide percent of average 229* 107 WIND RIVER BURROUGHS CREEK 8750 .2 .0 * 27.4 24.4 113 COLD SPRINGS 9630 .0 .0 100* 26.9 18.2 148 DEER PARK 9700 .0 -M * 38.2 -M * HOBBS PARK 10100 .9 .2 800* 31.9 23.2 138 LITTLE WARM 9620 .2 .0 * 28.5 21.4 134 SOUTH PASS 9040 -M .0 * 34.7 26.4 132 ST. LAWRENCE ALT 8620 .0 .0 100* 23.9 16.9 143 TOGWOTEE PASS 9580 -M .0 * 39.5 37.5 106 TOWNSEND CREEK 8700 .2 .0 * 28.2 20.9 135 ----- ----- Basin wide percent of average 800* 128 BIGHORN BASIN BALD MTN. 9375 .0 .9 0* 30.2 27.9 109 BEAR TRAP MEADOW 7900 .0 .0 100* 21.5 16.5 131 BLACKWATER 9780 11.5 2.2 543* 35.8 28.0 128 BONE SPRINGS DIV 9350 .3 .0 * 30.0 25.4 119 EVENING STAR 9200 3.4 5.8 60 46.8 34.4 137 GRAVE SPRINGS 8550 .2 .0 * 21.7 19.4 113 KIRWIN 9550 .2 .0 * 25.0 18.7 134 MARQUETTE 8760 .0 .0 100* 25.5 20.0 128 MIDDLE POWDER 7760 .0 .0 100* 28.4 21.2 134 OWL CREEK 8975 .2 .0 * 20.0 12.7 158 POWDER RIVER PASS 9480 .0 .0 100* 26.5 21.2 126 SHELL CREEK 9580 .0 .0 100* 26.2 23.4 113 SYLVAN LAKE 8420 -M .0 * -M 29.7 * SYLVAN ROAD 8120 -M .0 * -M 25.0 * TIMBER CREEK 7950 .0 .0 100* 20.7 16.0 130 YOUNTS PEAK 8350 .0 .0 100* 27.2 24.9 109 ----- ----- Basin wide percent of average 173* 125 SHOSHONE RIVER BLACKWATER 9780 11.5 2.2 543* 35.8 28.0 128 EVENING STAR 9200 3.4 5.8 60 46.8 34.4 137 KIRWIN 9550 .2 .0 * 25.0 18.7 134 MARQUETTE 8760 .0 .0 100* 25.5 20.0 128 SYLVAN LAKE 8420 -M .0 * -M 29.7 * SYLVAN ROAD 8120 -M .0 * -M 25.0 * YOUNTS PEAK 8350 .0 .0 100* 27.2 24.9 109 ----- ----- Basin wide percent of average 190* 128 POWDER-TONGUE BEAR TRAP MEADOW 7900 .0 .0 100* 21.5 16.5 131 BIG GOOSE 7990 .0 -M * 22.7 -M * BONE SPRINGS DIV 9350 .3 .0 * 30.0 25.4 119 BURGESS JUNCTION 7880 .2 .0 * 21.7 20.2 108 CLOUD PEAK RESERVOIR 9860 2.4 .0 * 28.7 24.7 117 DOME LAKE 8880 .3 .0 * 20.9 22.9 92 GRAVE SPRINGS 8550 .2 .0 * 21.7 19.4 113 HANSEN SAWMILL 8760 .0 .0 100* 20.2 16.2 126 MIDDLE POWDER 7760 .0 .0 100* 28.4 21.2 134 POWDER RIVER PASS 9480 .0 .0 100* 26.5 21.2 126 SUCKER CREEK 8880 .0 .0 100* 27.4 23.7 117 TIE CREEK 6870 .0 -M * 23.4 19.4 121 ----- ----- Basin wide percent of average * 118 BELLE FOURCHE BLIND PARK 6890 .2 .0 * 27.4 22.4 123 NORTH RAPID CREEK 6130 .0 -M * 25.4 -M * WARREN PEAK 6520 .2 .0 * 27.4 16.9 163 ----- ----- Basin wide percent of average * 140 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 .0 100* 32.5 32.4 101 DIVIDE PEAK 8800 .0 .0 100* 35.8 32.3 112 ELK RIVER 8700 .0 .0 100* 31.7 26.4 121 JOE WRIGHT 10120 .0 1.4 0* 39.9 37.5 107 NORTH FRENCH CREEK 10100 2.2 .0 * 42.8 34.4 125 OLD BATTLE 10000 1.4 2.5 53* 53.4 42.0 128 SOUTH BRUSH CREEK 8400 5.5 .0 * 29.4 25.9 114 TOWER 10500 .3 9.5 3 54.3 51.8 105 WEBBER SPRINGS 9200 .0 .0 100* 39.4 35.8 111 WILLOW CREEK PASS 9540 .0 .0 100* 19.5 20.5 96 ----- ----- Basin wide percent of average 12* 112 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 3.3 .0 * 35.8 29.0 124 CASPER MTN. 7900 .3 .0 * 28.0 25.7 110 DEADMAN HILL 10220 .2 .0 * 27.7 26.9 103 DEER PARK 9700 .0 -M * 38.2 -M * LAPRELE CREEK 8320 .0 .0 100* 27.2 20.7 133 RENO HILL 8400 .0 .0 100* 30.4 26.9 114 ROACH 9700 .0 .0 100* 30.5 32.3 95 SAND LAKE 10080 .9 2.7 31* 44.7 31.0 144 SOUTH PASS 9040 -M .0 * 34.7 26.4 132 WINDY PEAK 7840 .0 .0 100* 23.7 18.2 131 ----- ----- Basin wide percent of average 31* 120 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 24.7 21.9 113 DIVIDE PEAK 8800 .0 .0 100* 35.8 32.3 112 OLD BATTLE 10000 1.4 2.5 53* 53.4 42.0 128 SANDSTONE RS 8150 .5 .0 * 29.2 27.2 108 WHISKEY PARK 8950 .2 .0 * 42.3 39.7 107 ----- ----- Basin wide percent of average 53* 114 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 .0 100* 22.9 22.2 103 BLIND BULL SUM 8650 .0 .0 100* 31.9 31.2 103 EAST RIM DIVIDE 7930 .0 .0 100* 20.9 20.9 101 ELKHART PARK G.S. 9400 .2 .0 * 24.2 21.9 111 GROS VENTRE SUMMIT 8775 -M .0 * -M 21.9 * KENDALL R.S. 7740 .0 .0 100* 22.4 21.4 106 LOOMIS PARK 8240 .0 .0 100* 27.9 25.9 108 NEW FORK LAKE 8340 .0 .0 100* 20.9 19.9 106 SNIDER BASIN 8250 .0 .0 100* 26.2 20.9 126 SPRING CREEK DIVIDE 9000 .0 .0 100* 39.8 35.8 112 TRIPLE PEAK 8500 .0 .0 100* 42.0 41.3 102 ----- ----- 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* 22.4 21.2 107 HICKERSON PARK 9150 .0 .0 100* 17.4 17.4 101 HOLE-IN-ROCK 9150 .0 .0 100* 17.9 17.4 103 INDIAN CREEK 9425 1.2 .0 * 37.7 34.3 110 KELLEY R.S. 8180 .0 .0 100* 27.7 25.7 108 STEEL CREEK PARK 10100 .0 .0 100* 26.5 23.4 114 ----- ----- 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 28.4 110 KELLEY R.S. 8180 .0 .0 100* 27.7 25.7 108 LILY LAKE 9050 .2 .0 * 27.7 23.2 120 MONTE CRISTO 8960 -M .0 * 41.3 35.8 116 SALT RIVER SUMMIT 7600 .2 .0 * 26.2 23.2 113 TRIAL LAKE 9960 .5 .0 * 34.0 33.8 101 ----- ----- Basin wide percent of average * 112 ----------------------------------------------------------------------------- -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.