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: JUNE 25 , 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* 34.4 29.4 118 COTTONWOOD CREEK 7600 .2 .0 * 40.7 32.7 125 GRANITE CREEK 6770 .2 .0 * 32.2 31.7 102 GRASSY LAKE 7265 .0 .0 100* 55.8 48.5 116 GROS VENTRE SUMMIT 8775 .0 .0 100* 23.2 21.4 109 LEWIS LAKE DIVIDE 7860 .0 .0 100* 51.0 49.3 104 PHILLIPS BENCH 8200 .0 .0 100* 41.7 38.8 108 SALT RIVER SUMMIT 7600 .2 .0 * 26.0 22.7 115 SNAKE RIVER STATION 6920 .0 .0 100* 34.8 34.2 102 SPRING CREEK DIVIDE 9000 .0 .0 * 39.7 35.3 113 THUMB DIVIDE 7980 .0 .0 100* 31.2 27.4 114 TOGWOTEE PASS 9580 -M 5.1 * 39.0 37.0 106 TWO OCEAN PLATEAU 9360 20.5 6.0 348 42.3 40.4 105 WILLOW CREEK 8450 .0 .0 100* 54.3 41.9 130 ----- ----- Basin wide percent of average 348* 112 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 4.8 4.8 103 31.2 27.2 116 BLACK BEAR 7950 23.9 6.0 399 65.6 53.8 123 CANYON 7940 .2 .2 100* 26.4 21.0 126 FISHER CREEK 9100 22.7 11.9 192 49.2 50.3 98 MADISON PLATEAU 7750 -M .3 * 42.7 35.8 119 NORTHEAST ENTRANCE 7350 .2 .0 * 20.9 18.7 112 PARKER PEAK 9400 .0 6.5 0 -M 24.2 * SYLVAN LAKE 8420 6.0 2.3 257* -M 28.9 * THUMB DIVIDE 7980 .0 .0 100* 31.2 27.4 114 TWO OCEAN PLATEAU 9360 20.5 6.0 348 42.3 40.4 105 WHISKEY CREEK 6800 .0 .0 100* 34.7 30.2 115 WHITE MILL 8700 -M 5.5 * -M 39.3 * WOLVERINE 7650 .0 .0 100* 17.9 20.2 89 ----- ----- Basin wide percent of average 210* 112 WIND RIVER BURROUGHS CREEK 8750 .3 .0 * 27.0 23.9 113 COLD SPRINGS 9630 .2 .0 * 26.9 17.9 151 DEER PARK 9700 .3 -M * 38.2 -M * HOBBS PARK 10100 2.7 1.4 186* 32.2 22.7 142 LITTLE WARM 9620 .3 .0 * 28.4 20.9 136 SOUTH PASS 9040 -M 1.5 * 34.8 25.9 135 ST. LAWRENCE ALT 8620 .0 .0 100* 23.9 16.4 146 TOGWOTEE PASS 9580 -M 5.1 * 39.0 37.0 106 TOWNSEND CREEK 8700 .2 .0 * 28.4 20.4 140 ----- ----- Basin wide percent of average 186* 130 BIGHORN BASIN BALD MTN. 9375 2.0 4.1 49 29.4 27.4 108 BEAR TRAP MEADOW 7900 .3 .0 * 20.7 16.0 129 BLACKWATER 9780 18.2 4.5 412 34.8 27.2 128 BONE SPRINGS DIV 9350 .2 1.0 11* 29.5 24.7 120 EVENING STAR 9200 11.0 9.5 116 45.8 33.4 137 GRAVE SPRINGS 8550 .2 .0 * 21.4 18.7 115 KIRWIN 9550 .0 .5 0* 24.5 18.2 136 MARQUETTE 8760 .0 .5 0* -M 19.4 * MIDDLE POWDER 7760 .0 .0 100* 27.7 20.7 134 OWL CREEK 8975 .0 .0 100* 19.9 12.4 162 POWDER RIVER PASS 9480 .2 .0 * 25.9 20.5 127 SHELL CREEK 9580 .0 1.5 0* -M 22.7 * SYLVAN LAKE 8420 6.0 2.3 257* -M 28.9 * SYLVAN ROAD 8120 .2 .0 * 25.7 24.4 106 TIMBER CREEK 7950 .0 .0 100* 20.7 15.5 134 YOUNTS PEAK 8350 .7 .9 88* 25.9 24.4 107 ----- ----- Basin wide percent of average 156* 125 SHOSHONE RIVER BLACKWATER 9780 18.2 4.5 412 34.8 27.2 128 EVENING STAR 9200 11.0 9.5 116 45.8 33.4 137 KIRWIN 9550 .0 .5 0* 24.5 18.2 136 MARQUETTE 8760 .0 .5 0* -M 19.4 * SYLVAN LAKE 8420 6.0 2.3 257* -M 28.9 * SYLVAN ROAD 8120 .2 .0 * 25.7 24.4 106 YOUNTS PEAK 8350 .7 .9 88* 25.9 24.4 107 ----- ----- Basin wide percent of average 202* 123 POWDER-TONGUE BEAR TRAP MEADOW 7900 .3 .0 * 20.7 16.0 129 BIG GOOSE 7990 .0 -M * 22.4 -M * BONE SPRINGS DIV 9350 .2 1.0 11* 29.5 24.7 120 BURGESS JUNCTION 7880 .0 .0 100* 21.4 19.7 109 CLOUD PEAK RESERVOIR 9860 .0 1.4 0* 28.7 23.9 121 DOME LAKE 8880 -M .5 * 19.5 22.4 88 GRAVE SPRINGS 8550 .2 .0 * 21.4 18.7 115 HANSEN SAWMILL 8760 .0 .0 100* 20.2 15.5 131 MIDDLE POWDER 7760 .0 .0 100* 27.7 20.7 134 POWDER RIVER PASS 9480 .2 .0 * 25.9 20.5 127 SUCKER CREEK 8880 .0 .2 0* 26.4 23.0 115 TIE CREEK 6870 .0 -M * 22.7 18.9 121 ----- ----- Basin wide percent of average 5* 118 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* 27.2 21.5 127 NORTH RAPID CREEK 6130 .0 -M * 25.2 -M * WARREN PEAK 6520 .2 .0 * 26.9 16.2 168 ----- ----- Basin wide percent of average * 144 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 .0 100* 32.4 32.2 101 DIVIDE PEAK 8800 .0 .3 0* 35.9 31.9 113 ELK RIVER 8700 .0 .0 100* 31.7 25.9 123 JOE WRIGHT 10120 .0 3.7 0 -M 36.9 * NORTH FRENCH CREEK 10100 12.7 5.0 260 42.8 33.9 127 OLD BATTLE 10000 2.9 5.1 57 53.4 41.5 129 SOUTH BRUSH CREEK 8400 5.5 .0 * 29.4 25.4 116 TOWER 10500 18.4 16.7 110 54.2 51.3 106 WEBBER SPRINGS 9200 .0 .9 0* 39.5 35.4 112 WILLOW CREEK PASS 9540 .0 .0 100* 20.7 20.0 104 ----- ----- Basin wide percent of average 109* 115 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 3.9 1.5 261* 35.9 28.7 126 CASPER MTN. 7900 .3 .5 50* 28.0 25.0 113 DEADMAN HILL 10220 .0 1.5 0* 27.7 26.4 106 DEER PARK 9700 .3 -M * 38.2 -M * LAPRELE CREEK 8320 .0 .0 100* 26.9 20.2 134 RENO HILL 8400 .0 .3 0* 30.2 26.4 115 ROACH 9700 -M .5 * -M 31.9 * SAND LAKE 10080 15.5 6.8 227 44.7 30.5 147 SOUTH PASS 9040 -M 1.5 * 34.8 25.9 135 WINDY PEAK 7840 .0 .0 100* 23.2 17.7 132 ----- ----- Basin wide percent of average 186* 126 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 24.9 21.7 115 DIVIDE PEAK 8800 .0 .3 0* 35.9 31.9 113 OLD BATTLE 10000 2.9 5.1 57 53.4 41.5 129 SANDSTONE RS 8150 .3 .0 * 29.2 26.9 109 WHISKEY PARK 8950 .2 .2 100* 42.3 39.3 108 ----- ----- Basin wide percent of average 56* 116 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 .0 100* 22.7 21.9 104 BLIND BULL SUM 8650 1.7 3.4 50 31.7 30.9 103 EAST RIM DIVIDE 7930 .0 .0 100* 21.0 20.5 103 ELKHART PARK G.S. 9400 .2 .0 * 24.0 21.5 112 GROS VENTRE SUMMIT 8775 .0 .0 100* 23.2 21.4 109 KENDALL R.S. 7740 .0 .0 100* 22.4 21.0 107 LOOMIS PARK 8240 .0 .0 100* 27.7 25.4 109 NEW FORK LAKE 8340 .0 .0 100* 21.2 19.5 109 SNIDER BASIN 8250 .0 .0 100* 26.2 20.5 128 SPRING CREEK DIVIDE 9000 .0 .0 * 39.7 35.3 113 TRIPLE PEAK 8500 .0 .0 100* 42.0 40.8 103 ----- ----- Basin wide percent of average 50* 109 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 20.4 18.0 113 HEWINTA 9500 .0 .0 100* 22.5 20.7 109 HICKERSON PARK 9150 .0 .0 100* 17.4 16.9 103 HOLE-IN-ROCK 9150 .0 .0 100* 17.9 16.9 106 INDIAN CREEK 9425 4.0 .0 * 38.5 33.9 114 KELLEY R.S. 8180 .0 .0 100* 27.7 25.4 110 STEEL CREEK PARK 10100 .0 1.4 0* 26.7 22.7 118 ----- ----- Basin wide percent of average 0* 111 UPPER BEAR RIVER BUG LAKE 7950 .0 .0 100* 31.9 26.2 122 HAYDEN FORK 9400 .0 .0 100* 31.2 27.9 112 KELLEY R.S. 8180 .0 .0 100* 27.7 25.4 110 LILY LAKE 9050 .0 .0 100* 27.7 22.9 122 MONTE CRISTO 8960 -M 1.5 * 41.4 35.4 117 SALT RIVER SUMMIT 7600 .2 .0 * 26.0 22.7 115 TRIAL LAKE 9960 .5 1.5 34* 34.2 33.4 103 ----- ----- Basin wide percent of average 34* 114 ----------------------------------------------------------------------------- -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.