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 TUESDAY: MAY 27 , 2003 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 1.9 0 25.4 26.7 95 COTTONWOOD CREEK 7600 .0 7.7 0 28.0 35.2 80 GRANITE CREEK 6770 .1 2.9 3 19.3 24.5 79 GRASSY LAKE 7265 9.6 17.7 54 39.5 44.4 89 GROS VENTRE SUMMIT 8775 .1 5.5 2 14.2 17.3 82 LEWIS LAKE DIVIDE 7860 14.0 21.2 66 36.1 44.8 81 PHILLIPS BENCH 8200 -M 17.0 * -M 36.0 * SALT RIVER SUMMIT 7600 .0 1.4 0* 16.1 23.7 68 SNAKE RIVER STATION 6920 .0 1.7 0* 25.1 27.9 90 SPRING CREEK DIVIDE 9000 13.5 17.9 75 26.6 32.6 82 THUMB DIVIDE 7980 .0 4.2 0 21.5 24.3 88 TOGWOTEE PASS 9580 20.5 23.5 87 28.3 32.1 88 TWO OCEAN PLATEAU 9360 29.8 26.8 111 31.8 35.6 89 WILLOW CREEK 8450 8.3 17.5 47 40.8 41.8 98 ----- ----- Basin wide percent of average 64 86 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 25.5 21.7 118 27.6 26.4 105 BLACK BEAR 8170 32.1 29.2 110 40.8 49.6 82 CANYON 8090 2.2 3.0 73 19.2 20.0 96 FISHER CREEK 9100 37.8 32.0 118 41.9 45.9 91 MADISON PLATEAU 7750 9.5 12.1 79 27.7 33.7 82 NORTHEAST ENTRANCE 7350 .2 1.3 15 17.1 17.1 100 PARKER PEAK 9400 18.4 20.1 92 25.4 22.6 112 SYLVAN LAKE 8420 16.1 14.0 115 29.9 28.3 106 THUMB DIVIDE 7980 .0 4.2 0 21.5 24.3 88 TWO OCEAN PLATEAU 9360 29.8 26.8 111 31.8 35.6 89 WHISKEY CREEK 6800 .2 3.7 5 19.5 26.8 73 WHITE MILL 8700 27.2 20.0 136 29.5 34.6 85 WOLVERINE 7650 .0 .9 0* 14.7 17.8 83 ----- ----- Basin wide percent of average 105 91 WIND RIVER BURROUGHS CREEK 8750 6.6 5.5 120 22.7 22.1 103 COLD SPRINGS 9630 .3 1.7 18 13.5 16.6 81 DEER PARK 9700 6.4 10.7 60 22.6 30.3 75 HOBBS PARK 10100 4.6 12.0 38 18.1 20.3 89 LITTLE WARM 9370 .2 3.6 6 14.7 19.5 75 SOUTH PASS 9040 .4 8.6 5 18.4 25.5 72 ST. LAWRENCE ALT 8620 .1 1.6 6 11.7 14.7 80 TOGWOTEE PASS 9580 20.5 23.5 87 28.3 32.1 88 TOWNSEND CREEK 8700 .0 2.9 0 15.5 18.3 85 ----- ----- Basin wide percent of average 56 83 BIGHORN BASIN BALD MTN. 9380 16.0 18.6 86 21.7 24.7 88 BEAR TRAP MEADOW 8200 .1 .2 50* 13.2 13.7 96 BLACKWATER 9780 25.2 25.9 97 27.9 28.2 99 BONE SPRINGS DIV 9350 11.6 10.6 109 21.9 21.7 101 EVENING STAR 9200 26.7 28.4 94 38.8 33.7 115 GRAVE SPRINGS 8550 .1 3.6 3 12.6 15.6 81 KIRWIN 9550 7.1 7.1 100 17.5 17.0 103 MARQUETTE 8760 -M 5.6 * -M 17.3 * MIDDLE POWDER 7760 .1 5.1 2 11.8 18.6 63 OWL CREEK 8975 .5 1.0 50 9.0 10.6 85 POWDER RIVER PASS 9480 .3 4.0 8 17.0 19.0 89 SHELL CREEK 9580 10.3 12.1 85 17.9 19.9 90 SYLVAN LAKE 8420 16.1 14.0 115 29.9 28.3 106 SYLVAN ROAD 7120 .0 .8 0* 21.5 22.8 94 TIMBER CREEK 7950 .3 1.0 30 12.6 13.8 91 YOUNTS PEAK 8350 8.4 9.5 88 19.6 21.6 91 ----- ----- Basin wide percent of average 87 95 SHOSHONE RIVER BLACKWATER 9780 25.2 25.9 97 27.9 28.2 99 EVENING STAR 9200 26.7 28.4 94 38.8 33.7 115 KIRWIN 9550 7.1 7.1 100 17.5 17.0 103 MARQUETTE 8760 -M 5.6 * -M 17.3 * SYLVAN LAKE 8420 16.1 14.0 115 29.9 28.3 106 SYLVAN ROAD 7120 .0 .8 0* 21.5 22.8 94 YOUNTS PEAK 8350 8.4 9.5 88 19.6 21.6 91 ----- ----- Basin wide percent of average 97 102 POWDER-TONGUE BEAR TRAP MEADOW 8200 .1 .2 50* 13.2 13.7 96 BIG GOOSE 7990 2.1 4.6 46 18.8 15.8 119 BONE SPRINGS DIV 9350 11.6 10.6 109 21.9 21.7 101 BURGESS JUNCTION 7880 5.8 4.8 121 19.0 18.0 106 CLOUD PEAK RESERVOIR 9860 11.2 9.8 114 19.8 21.0 94 DOME LAKE 8880 2.6 5.3 49 20.4 20.0 102 GRAVE SPRINGS 8550 .1 3.6 3 12.6 15.6 81 HANSEN SAWMILL 8360 .2 .8 25 14.8 13.6 109 MIDDLE POWDER 7760 .1 5.1 2 11.8 18.6 63 POWDER RIVER PASS 9480 .3 4.0 8 17.0 19.0 89 SUCKER CREEK 8880 6.3 5.5 115 22.7 20.8 109 TIE CREEK 6870 .2 .4 50* 19.5 16.6 117 ----- ----- Basin wide percent of average 74 99 BELLE FOURCHE BLIND PARK 6890 .4 .0 * 14.9 17.3 86 COLE CANYON 5910 .2 -M * 13.6 -M * NORTH RAPID CREEK 6130 .2 .2 100* 13.5 13.6 99 ----- ----- Basin wide percent of average 100* 92 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 5.3 0 31.5 31.7 99 DIVIDE PEAK 8800 .2 6.4 3 27.3 27.0 101 ELK RIVER 8700 .6 3.2 19 25.4 25.5 100 JOE WRIGHT 10120 25.1 19.0 132 38.9 34.0 114 NORTH FRENCH CREEK 10100 28.7 26.6 108 38.7 33.6 115 OLD BATTLE 10000 -M 28.5 * -M 43.5 * SAGE CREEK BASIN 7850 .1 3.7 3 16.7 15.6 107 SOUTH BRUSH CREEK 8400 .3 3.1 10 24.7 23.0 107 TOWER 10500 41.5 45.1 92 55.4 49.2 113 WEBBER SPRINGS 9200 1.6 9.9 16 31.6 34.1 93 WILLOW CREEK PASS 9540 13.0 5.6 232 21.8 18.3 119 ----- ----- Basin wide percent of average 87 107 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 10.3 15.0 69 28.0 30.4 92 CASPER MTN. 7900 .1 6.4 2 17.0 23.3 73 DEADMAN HILL 10220 15.1 13.2 114 26.7 24.1 111 DEER PARK 9700 6.4 10.7 60 22.6 30.3 75 LAPRELE CREEK 8320 .2 1.6 12 17.2 19.5 88 RENO HILL 8400 .7 5.3 13 21.1 24.0 88 ROACH 9700 8.1 8.1 100 25.7 25.8 100 SAND LAKE 10080 27.5 28.7 96 33.5 33.5 100 SOUTH PASS 9040 .4 8.6 5 18.4 25.5 72 WINDY PEAK 7840 .3 .6 50* 17.6 16.5 107 ----- ----- Basin wide percent of average 70 90 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .2 .2 100* 20.5 20.5 100 DIVIDE PEAK 8800 .2 6.4 3 27.3 27.0 101 OLD BATTLE 10000 -M 28.5 * -M 43.5 * SANDSTONE RS 8150 .4 1.1 36* 24.5 24.3 101 WHISKEY PARK 8950 -M 17.4 * 35.1 37.2 94 ----- ----- Basin wide percent of average 10* 99 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 3.6 0 14.5 18.2 80 BLIND BULL SUM 8650 15.6 19.9 78 20.4 27.6 74 EAST RIM DIVIDE 7930 .0 3.8 0 11.3 15.7 72 ELKHART PARK G.S. 9400 .1 5.1 2 14.9 18.5 81 GROS VENTRE SUMMIT 8775 .1 5.5 2 14.2 17.3 82 KENDALL R.S. 7740 .0 1.1 0* 15.5 18.3 85 LOOMIS PARK 8240 .7 4.5 16 19.0 22.1 86 NEW FORK LAKE 8340 .0 1.1 0* -M 15.5 * SNIDER BASIN 8250 .0 2.3 0 15.1 20.1 75 SPRING CREEK DIVIDE 9000 13.5 17.9 75 26.6 32.6 82 TRIPLE PEAK 8500 .0 8.4 0 30.7 31.4 98 ----- ----- Basin wide percent of average 41 82 LOWER GREEN RIVER HAMS FORK 7840 .1 .3 33* 14.1 16.6 85 HEWINTA 9500 .0 1.7 0 16.3 19.9 82 HICKERSON PARK 9150 .0 .6 0* 12.6 12.2 103 HOLE-IN-ROCK 9150 .0 .5 0* 13.5 11.8 114 INDIAN CREEK 9425 11.0 17.3 64 23.8 32.0 74 KELLEY R.S. 8180 .3 3.7 8 16.9 25.8 66 STEEL CREEK PARK 10100 11.9 13.7 87 18.9 22.7 83 ----- ----- Basin wide percent of average 62 82 UPPER BEAR RIVER BUG LAKE 7950 .1 5.0 2 20.5 24.7 83 HAYDEN FORK 9400 .5 3.1 16 21.7 28.0 78 KELLEY R.S. 8180 .3 3.7 8 16.9 25.8 66 LILY LAKE 9050 .0 2.8 0 18.8 23.6 80 MONTE CRISTO 8960 -M 15.5 * 26.4 33.4 79 SALT RIVER SUMMIT 7600 .0 1.4 0* 16.1 23.7 68 TRIAL LAKE 9960 1.6 17.1 9 23.1 32.7 71 ----- ----- Basin wide percent of average 8 75 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Average Snow Water Equivalent and Total Precipitation values 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 1971-2000. 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.