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 SATURDAY: MAY 30 , 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 .6 200* 25.5 27.7 92 COTTONWOOD CREEK 7600 .5 1.6 31* 30.0 30.9 97 GRANITE CREEK 6770 .3 2.4 12 26.2 29.6 89 GRASSY LAKE 7265 13.2 13.8 96 43.1 46.0 94 GROS VENTRE SUMMIT 8775 1.3 1.2 108* 17.0 20.0 85 LEWIS LAKE DIVIDE 7860 15.1 21.0 72 38.8 46.8 83 PHILLIPS BENCH 8200 17.2 18.5 93 31.9 36.9 86 SALT RIVER SUMMIT 7600 1.0 .0 * 25.2 21.3 118 SNAKE RIVER STATION 6920 .0 1.4 0* 28.0 32.3 87 SPRING CREEK DIVIDE 9000 16.1 19.8 81 27.3 33.6 81 THUMB DIVIDE 7980 .2 1.3 15* 22.6 25.9 87 TOGWOTEE PASS 9580 21.0 23.9 88 29.4 35.1 84 TWO OCEAN PLATEAU 9360 24.4 22.9 107 33.7 38.2 88 WILLOW CREEK 8450 8.7 20.2 43 39.5 39.8 99 ----- ----- Basin wide percent of average 80 90 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 12.5 20.0 62 19.8 24.8 80 BLACK BEAR 7950 32.1 28.6 112 45.3 50.3 90 CANYON 7940 .0 2.0 0 17.7 18.7 95 FISHER CREEK 9100 22.5 32.4 69 33.7 46.7 72 MADISON PLATEAU 7750 8.9 8.8 101 29.9 33.1 90 NORTHEAST ENTRANCE 7350 .0 .5 0* 13.7 16.3 84 PARKER PEAK 9400 10.0 19.1 52 20.1 21.3 94 SYLVAN LAKE 8420 4.8 14.9 32 26.1 26.0 100 THUMB DIVIDE 7980 .2 1.3 15* 22.6 25.9 87 TWO OCEAN PLATEAU 9360 24.4 22.9 107 33.7 38.2 88 WHISKEY CREEK 6800 .3 2.2 14 25.8 27.4 94 WHITE MILL 8700 15.7 20.0 79 25.4 36.3 70 WOLVERINE 7650 .0 .4 0* 11.5 17.9 64 ----- ----- Basin wide percent of average 76 85 WIND RIVER BURROUGHS CREEK 8750 3.8 2.6 146 21.0 22.3 94 COLD SPRINGS 9630 .1 .6 17* 16.6 15.9 104 DEER PARK 9700 -M -M * 26.5 -M * HOBBS PARK 10100 11.0 10.2 108 20.8 20.7 100 LITTLE WARM 9620 .1 1.3 8* 17.8 19.1 93 SOUTH PASS 9040 1.8 10.8 17 22.8 23.8 96 ST. LAWRENCE ALT 8620 .0 .4 0* 15.0 14.7 102 TOGWOTEE PASS 9580 21.0 23.9 88 29.4 35.1 84 TOWNSEND CREEK 8700 .0 2.3 0 18.2 18.4 99 ----- ----- Basin wide percent of average 73 95 BIGHORN BASIN BALD MTN. 9375 13.6 19.2 71 21.3 25.0 85 BEAR TRAP MEADOW 7900 .0 .2 0* 13.3 13.7 97 BLACKWATER 9780 17.5 19.5 90 23.1 23.8 97 BONE SPRINGS DIV 9350 5.7 9.1 63 20.5 21.9 94 EVENING STAR 9200 15.0 26.1 57 29.7 29.6 100 GRAVE SPRINGS 8550 .0 -M * 15.8 16.0 99 KIRWIN 9550 2.9 5.7 51 17.9 16.0 112 MARQUETTE 8760 4.1 4.5 91 18.3 17.1 107 MIDDLE POWDER 7760 .0 3.9 0 15.1 18.0 84 OWL CREEK 8975 .0 .2 0* 11.5 10.5 110 POWDER RIVER PASS 9480 .0 1.9 0 17.7 18.0 98 SHELL CREEK 9580 3.3 11.9 28 14.6 19.5 75 SYLVAN LAKE 8420 4.8 14.9 32 26.1 26.0 100 SYLVAN ROAD 8120 .0 1.4 0 16.8 21.6 78 TIMBER CREEK 7950 -M .5 * 13.8 13.6 101 YOUNTS PEAK 8350 5.3 9.9 54 19.1 22.1 86 ----- ----- Basin wide percent of average 56 94 SHOSHONE RIVER BLACKWATER 9780 17.5 19.5 90 23.1 23.8 97 EVENING STAR 9200 15.0 26.1 57 29.7 29.6 100 KIRWIN 9550 2.9 5.7 51 17.9 16.0 112 MARQUETTE 8760 4.1 4.5 91 18.3 17.1 107 SYLVAN LAKE 8420 4.8 14.9 32 26.1 26.0 100 SYLVAN ROAD 8120 .0 1.4 0 16.8 21.6 78 YOUNTS PEAK 8350 5.3 9.9 54 19.1 22.1 86 ----- ----- Basin wide percent of average 60 97 POWDER-TONGUE BEAR TRAP MEADOW 7900 .0 .2 0* 13.3 13.7 97 BONE SPRINGS DIV 9350 5.7 9.1 63 20.5 21.9 94 BURGESS JUNCTION 7880 .0 3.3 0 15.5 17.5 89 CLOUD PEAK RESERVOIR 9860 3.4 9.2 37 21.2 21.0 101 DOME LAKE 8880 .0 4.7 0 17.3 20.0 87 GRAVE SPRINGS 8550 .0 -M * 15.8 16.0 99 HANSEN SAWMILL 8760 .0 1.2 0 14.8 12.8 116 MIDDLE POWDER 7760 .0 3.9 0 15.1 18.0 84 POWDER RIVER PASS 9480 .0 1.9 0 17.7 18.0 98 SUCKER CREEK 8880 .0 4.8 0 18.1 20.2 90 TIE CREEK 6870 .0 -M * 17.2 16.8 102 ----- ----- Basin wide percent of average 24 95 BELLE FOURCHE BLIND PARK 6890 .0 .5 0* 16.0 17.9 89 NORTH RAPID CREEK 6130 .0 -M * 14.2 -M * WARREN PEAK 6520 .0 .6 0* 14.1 13.1 108 ----- ----- Basin wide percent of average 0* 97 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 4.0 0 27.5 30.7 90 DIVIDE PEAK 8800 .0 4.0 0 24.3 30.6 79 ELK RIVER 8700 .0 1.2 0* 24.4 24.3 100 JOE WRIGHT 10120 12.5 17.9 70 30.2 34.6 87 NORTH FRENCH CREEK 10100 22.0 21.0 105 36.1 32.0 113 OLD BATTLE 10000 25.4 25.5 100 42.4 39.3 108 SOUTH BRUSH CREEK 8400 .0 1.6 0 16.1 23.1 70 TOWER 10500 39.2 45.2 87 48.4 49.0 99 WEBBER SPRINGS 9200 .7 11.5 6 31.2 33.5 93 WILLOW CREEK PASS 9540 -M 3.2 * 11.3 18.1 62 ----- ----- Basin wide percent of average 76 93 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 7.2 14.2 51 27.5 26.9 102 CASPER MTN. 7900 .1 4.4 2 16.1 22.6 71 DEADMAN HILL 10220 7.1 11.2 63 19.3 24.4 79 DEER PARK 9700 -M -M * 26.5 -M * LAPRELE CREEK 8320 .0 1.3 0 13.4 17.9 75 RENO HILL 8400 .0 3.6 0 14.7 24.2 61 ROACH 9700 1.1 8.5 13 22.0 29.9 74 SAND LAKE 10080 19.9 25.9 77 30.0 28.2 106 SOUTH PASS 9040 1.8 10.8 17 22.8 23.8 96 WINDY PEAK 7840 .0 .4 0* 12.2 15.5 79 ----- ----- Basin wide percent of average 46 83 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .2 .0 * 18.3 20.7 88 DIVIDE PEAK 8800 .0 4.0 0 24.3 30.6 79 OLD BATTLE 10000 25.4 25.5 100 42.4 39.3 108 SANDSTONE RS 8150 .0 .3 0* 23.0 25.8 89 WHISKEY PARK 8950 20.7 13.6 152 35.3 38.0 93 ----- ----- Basin wide percent of average 106 93 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 1.2 0* 16.7 20.5 81 BLIND BULL SUM 8650 15.5 17.1 91 23.6 29.3 81 EAST RIM DIVIDE 7930 1.3 7.7 17 15.5 19.1 81 ELKHART PARK G.S. 9400 1.4 5.0 28 18.4 20.1 92 GROS VENTRE SUMMIT 8775 1.3 1.2 108* 17.0 20.0 85 KENDALL R.S. 7740 .0 .0 100* 18.7 19.6 95 LOOMIS PARK 8240 -M 1.3 * 21.5 23.6 91 NEW FORK LAKE 8340 -M .7 * 15.7 18.2 86 SNIDER BASIN 8250 .1 1.0 10* 16.3 19.1 85 SPRING CREEK DIVIDE 9000 16.1 19.8 81 27.3 33.6 81 TRIPLE PEAK 8500 2.3 15.5 15 27.2 38.6 70 ----- ----- Basin wide percent of average 55* 83 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 14.9 16.8 89 HEWINTA 9500 .0 .0 100* 18.9 18.8 101 HICKERSON PARK 9150 .0 .1 0* 18.3 15.0 122 HOLE-IN-ROCK 9150 .0 .1 0* 16.1 15.0 107 INDIAN CREEK 9425 16.9 18.3 92 25.2 32.1 79 KELLEY R.S. 8180 .0 1.2 0* 21.5 23.6 91 STEEL CREEK PARK 10100 16.8 12.5 134 24.2 19.6 123 ----- ----- Basin wide percent of average 105* 99 UPPER BEAR RIVER BUG LAKE 7950 .5 3.2 16 26.3 24.8 106 HAYDEN FORK 9400 .0 .1 0* 26.4 26.0 102 KELLEY R.S. 8180 .0 1.2 0* 21.5 23.6 91 LILY LAKE 9050 .0 1.6 0 23.0 20.9 110 MONTE CRISTO 8960 15.3 11.2 137 34.2 33.5 102 SALT RIVER SUMMIT 7600 1.0 .0 * 25.2 21.3 118 TRIAL LAKE 9960 12.3 13.1 94 30.0 31.5 95 ----- ----- Basin wide percent of average 92 103 ----------------------------------------------------------------------------- -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.