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 THURSDAY: MAY 28 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 1.2 1.1 109* 25.6 27.6 93 COTTONWOOD CREEK 7600 3.3 3.3 100 30.0 30.7 98 GRANITE CREEK 6770 .4 3.0 13 25.7 29.4 87 GRASSY LAKE 7265 15.2 15.6 97 42.8 45.7 94 GROS VENTRE SUMMIT 8775 3.0 2.4 125 17.0 19.8 86 LEWIS LAKE DIVIDE 7860 16.9 22.1 76 38.6 46.5 83 PHILLIPS BENCH 8200 18.8 19.4 97 31.9 36.6 87 SALT RIVER SUMMIT 7600 1.0 .0 * 25.2 21.1 119 SNAKE RIVER STATION 6920 .0 2.7 0 27.9 32.1 87 SPRING CREEK DIVIDE 9000 17.8 20.6 86 27.3 33.4 82 THUMB DIVIDE 7980 .2 2.6 8 22.5 25.8 87 TOGWOTEE PASS 9580 22.1 24.2 91 29.4 34.9 84 TWO OCEAN PLATEAU 9360 25.6 23.4 109 33.5 37.9 88 WILLOW CREEK 8450 11.4 21.2 54 39.5 39.5 100 ----- ----- Basin wide percent of average 84 90 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 13.9 20.7 67 19.7 24.5 80 BLACK BEAR 7950 34.0 29.7 114 45.3 50.1 90 CANYON 7940 -M 2.6 * 17.8 18.6 96 FISHER CREEK 9100 24.3 33.0 74 33.5 46.4 72 MADISON PLATEAU 7750 11.0 10.2 108 29.9 32.9 91 NORTHEAST ENTRANCE 7350 .0 .8 0* 13.7 16.2 85 PARKER PEAK 9400 11.6 19.6 59 20.0 21.1 95 SYLVAN LAKE 8420 7.0 15.6 45 26.0 25.8 101 THUMB DIVIDE 7980 .2 2.6 8 22.5 25.8 87 TWO OCEAN PLATEAU 9360 25.6 23.4 109 33.5 37.9 88 WHISKEY CREEK 6800 1.5 3.2 47 25.6 27.3 94 WHITE MILL 8700 17.2 20.7 83 25.4 36.1 70 WOLVERINE 7650 .4 .7 57* 11.4 17.7 64 ----- ----- Basin wide percent of average 81 85 WIND RIVER BURROUGHS CREEK 8750 5.8 3.2 181 21.0 22.1 95 COLD SPRINGS 9630 .0 .9 0 16.6 15.7 106 DEER PARK 9700 -M -M * 26.5 -M * HOBBS PARK 10100 12.9 11.1 116 20.6 20.4 101 LITTLE WARM 9620 .1 1.8 6 17.8 18.9 94 SOUTH PASS 9040 4.9 11.5 43 22.9 23.6 97 ST. LAWRENCE ALT 8620 .0 .6 0* 15.1 14.5 104 TOGWOTEE PASS 9580 22.1 24.2 91 29.4 34.9 84 TOWNSEND CREEK 8700 .0 2.8 0 18.4 18.2 101 ----- ----- Basin wide percent of average 82 96 BIGHORN BASIN BALD MTN. 9375 15.2 19.9 76 21.0 24.7 85 BEAR TRAP MEADOW 7900 .0 .3 0* 13.1 13.5 97 BLACKWATER 9780 19.1 20.2 95 22.9 23.6 97 BONE SPRINGS DIV 9350 7.8 10.1 77 20.4 21.7 94 EVENING STAR 9200 16.2 26.6 61 29.7 29.4 101 GRAVE SPRINGS 8550 .5 -M * 15.7 15.7 100 KIRWIN 9550 4.7 6.3 75 17.8 15.8 113 MARQUETTE 8760 5.6 4.9 114 18.3 16.8 109 MIDDLE POWDER 7760 .0 5.2 0 15.1 17.8 85 OWL CREEK 8975 .0 .3 0* 11.3 10.4 109 POWDER RIVER PASS 9480 1.0 2.5 40 17.6 17.7 99 SHELL CREEK 9580 5.5 12.6 44 14.6 19.3 76 SYLVAN LAKE 8420 7.0 15.6 45 26.0 25.8 101 SYLVAN ROAD 8120 .1 1.7 6 17.0 21.4 79 TIMBER CREEK 7950 -M .7 * 13.8 13.3 104 YOUNTS PEAK 8350 7.7 10.7 72 19.0 21.9 87 ----- ----- Basin wide percent of average 66 95 SHOSHONE RIVER BLACKWATER 9780 19.1 20.2 95 22.9 23.6 97 EVENING STAR 9200 16.2 26.6 61 29.7 29.4 101 KIRWIN 9550 4.7 6.3 75 17.8 15.8 113 MARQUETTE 8760 5.6 4.9 114 18.3 16.8 109 SYLVAN LAKE 8420 7.0 15.6 45 26.0 25.8 101 SYLVAN ROAD 8120 .1 1.7 6 17.0 21.4 79 YOUNTS PEAK 8350 7.7 10.7 72 19.0 21.9 87 ----- ----- Basin wide percent of average 70 97 POWDER-TONGUE BEAR TRAP MEADOW 7900 .0 .3 0* 13.1 13.5 97 BONE SPRINGS DIV 9350 7.8 10.1 77 20.4 21.7 94 BURGESS JUNCTION 7880 .1 4.4 2 15.6 17.3 90 CLOUD PEAK RESERVOIR 9860 6.1 10.1 60 21.2 20.8 102 DOME LAKE 8880 .0 5.4 0 17.4 19.7 88 GRAVE SPRINGS 8550 .5 -M * 15.7 15.7 100 HANSEN SAWMILL 8760 .0 1.6 0 14.8 12.7 117 MIDDLE POWDER 7760 .0 5.2 0 15.1 17.8 85 POWDER RIVER PASS 9480 1.0 2.5 40 17.6 17.7 99 SUCKER CREEK 8880 .1 5.5 2 17.8 20.0 89 TIE CREEK 6870 .0 -M * 17.2 16.6 104 ----- ----- Basin wide percent of average 33 96 BELLE FOURCHE BLIND PARK 6890 .0 1.1 0* 16.0 17.6 91 NORTH RAPID CREEK 6130 .1 -M * 14.0 -M * WARREN PEAK 6520 .0 1.2 0* 13.7 12.9 106 ----- ----- Basin wide percent of average 0* 97 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 5.4 0 27.1 30.5 89 DIVIDE PEAK 8800 .0 5.2 0 24.4 30.3 81 ELK RIVER 8700 .0 2.2 0 23.8 24.2 98 JOE WRIGHT 10120 14.2 18.7 76 30.2 34.3 88 NORTH FRENCH CREEK 10100 24.2 21.7 112 36.1 31.7 114 OLD BATTLE 10000 26.3 27.0 97 42.4 39.1 108 SOUTH BRUSH CREEK 8400 .0 2.2 0 16.0 23.0 70 TOWER 10500 41.7 45.9 91 48.4 48.6 100 WEBBER SPRINGS 9200 2.8 12.7 22 31.1 33.3 93 WILLOW CREEK PASS 9540 -M 4.2 * 11.3 17.9 63 ----- ----- Basin wide percent of average 77 93 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 9.5 15.6 61 27.5 26.7 103 CASPER MTN. 7900 .1 5.3 2 16.1 22.4 72 DEADMAN HILL 10220 9.2 12.2 75 19.3 24.1 80 DEER PARK 9700 -M -M * 26.5 -M * LAPRELE CREEK 8320 .0 1.6 0 13.4 17.7 76 RENO HILL 8400 .0 4.2 0 14.7 24.1 61 ROACH 9700 2.2 9.5 23 22.0 29.6 74 SAND LAKE 10080 22.5 27.1 83 30.0 27.9 108 SOUTH PASS 9040 4.9 11.5 43 22.9 23.6 97 WINDY PEAK 7840 .0 .8 0* 12.0 15.2 79 ----- ----- Basin wide percent of average 55 84 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .0 * 18.3 20.6 89 DIVIDE PEAK 8800 .0 5.2 0 24.4 30.3 81 OLD BATTLE 10000 26.3 27.0 97 42.4 39.1 108 SANDSTONE RS 8150 .0 .5 0* 23.1 25.6 90 WHISKEY PARK 8950 22.8 15.1 151 35.3 37.7 94 ----- ----- Basin wide percent of average 103 94 UPPER GREEN RIVER BIG SANDY OPENING 9100 .6 2.3 26 16.7 20.3 82 BLIND BULL SUM 8650 17.5 17.8 98 23.6 29.2 81 EAST RIM DIVIDE 7930 3.0 8.3 36 15.1 19.0 79 ELKHART PARK G.S. 9400 3.8 5.7 67 18.3 19.9 92 GROS VENTRE SUMMIT 8775 3.0 2.4 125 17.0 19.8 86 KENDALL R.S. 7740 .0 .0 100* 18.8 19.4 97 LOOMIS PARK 8240 -M 2.7 * 21.5 23.5 91 NEW FORK LAKE 8340 -M 1.5 * 15.3 18.1 85 SNIDER BASIN 8250 .1 2.0 5 16.3 18.9 86 SPRING CREEK DIVIDE 9000 17.8 20.6 86 27.3 33.4 82 TRIPLE PEAK 8500 4.7 16.2 29 27.1 38.3 71 ----- ----- Basin wide percent of average 67 84 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 15.0 16.7 90 HEWINTA 9500 .0 .0 100* 19.0 18.7 102 HICKERSON PARK 9150 .0 .1 0* 18.3 14.8 124 HOLE-IN-ROCK 9150 .0 .2 0* 16.0 14.8 108 INDIAN CREEK 9425 18.7 19.2 97 25.0 31.9 78 KELLEY R.S. 8180 .6 2.4 25 21.4 23.5 91 STEEL CREEK PARK 10100 18.6 13.1 142 24.0 19.3 124 ----- ----- Basin wide percent of average 108* 99 UPPER BEAR RIVER BUG LAKE 7950 4.4 4.1 107 26.4 24.6 107 HAYDEN FORK 9400 .2 .2 100* 26.4 25.8 102 KELLEY R.S. 8180 .6 2.4 25 21.4 23.5 91 LILY LAKE 9050 .9 2.1 43 23.1 20.7 112 MONTE CRISTO 8960 17.9 12.6 142 34.1 33.3 102 SALT RIVER SUMMIT 7600 1.0 .0 * 25.2 21.1 119 TRIAL LAKE 9960 14.2 14.1 101 30.0 31.3 96 ----- ----- Basin wide percent of average 108 103 ----------------------------------------------------------------------------- -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.