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 22 , 2012 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 3.3 0 26.6 26.2 102 BLACK BEAR 8170 33.2 33.3 100 51.0 49.0 104 BLIND BULL SUM 8650 14.4 22.5 64 19.7 27.2 72 COTTONWOOD CREEK 7670 .0 10.4 0 28.9 34.7 83 EAST RIM DIVIDE 7930 .0 6.3 0 13.3 15.4 86 GRAND TARGHEE 9260 30.0 -M * 35.0 -M * GRANITE CREEK 6770 .0 5.0 0 20.8 24.1 86 GRASSY LAKE 7265 8.3 22.0 38 44.8 43.8 102 GROS VENTRE SUMMIT 8750 .0 7.5 0 13.4 16.9 79 GUNSIGHT PASS 9820 3.2 -M * 18.4 -M * LEWIS LAKE DIVIDE 7850 14.2 24.9 57 41.3 44.3 93 PHILLIPS BENCH 8200 4.3 20.2 21 29.0 35.6 81 SALT RIVER SUMMIT 7760 .0 1.5 0 11.3 23.4 48 SNAKE RIVER STATION 6920 .0 2.1 0 28.1 27.5 102 SPRING CREEK DIVIDE 9000 12.0 21.2 57 26.1 32.3 81 THUMB DIVIDE 7980 .1 6.6 2 22.8 24.0 95 TOGWOTEE PASS 9580 15.0 25.8 58 28.7 31.6 91 TWO OCEAN PLATEAU 9240 28.1 29.0 97 33.5 35.1 95 WILLOW CREEK 8380 .1 21.2 0 38.9 41.2 94 YOUNTS PEAK 8350 1.2 12.4 10 19.1 21.0 91 ----- ----- Basin wide percent of average 48 90 MADISON-GALLATIN BLACK BEAR 8170 33.2 33.3 100 51.0 49.0 104 CANYON 7870 .0 4.3 0 20.1 19.6 103 MADISON PLATEAU 7750 12.0 15.6 77 37.9 33.0 115 WEST YELLOWSTONE 6700 .0 .2 0* 21.4 17.2 124 WHISKEY CREEK 6800 .0 6.1 0 28.6 26.3 109 ----- ----- Basin wide percent of average 76 110 YELLOWSTONE BEARTOOTH LAKE 9360 24.5 24.0 102 30.4 26.0 117 BURNT MTN 5880 .0 .0 100* 15.2 23.8 64 CANYON 7870 .0 4.3 0 20.1 19.6 103 COLE CREEK 7850 .9 16.0 6 15.8 25.8 61 EVENING STAR 9200 21.0 30.6 69 38.8 33.0 118 FISHER CREEK 9100 37.3 34.0 110 43.4 45.2 96 NORTHEAST ENTRANCE 7350 .0 1.3 0 17.7 16.7 106 PARKER PEAK 9400 14.1 22.5 63 28.7 22.0 130 SYLVAN LAKE 8420 2.0 17.0 12 31.4 27.6 114 THUMB DIVIDE 7980 .1 6.6 2 22.8 24.0 95 TWO OCEAN PLATEAU 9240 28.1 29.0 97 33.5 35.1 95 WHITE MILL 8700 19.4 22.5 86 30.5 34.0 90 WOLVERINE 7650 .0 1.1 0* 15.4 17.4 89 ----- ----- Basin wide percent of average 71 98 WIND RIVER BURROUGHS CREEK 8750 1.7 7.6 22 17.1 21.6 79 CASTLE CREEK 8400 .0 -M * 10.3 -M * COLD SPRINGS 9630 .0 1.6 0 11.1 16.2 69 DEER PARK 9700 .0 15.1 0 21.3 29.8 71 HOBBS PARK 10100 .0 14.6 0 16.6 19.9 83 KIRWIN 9550 .0 9.2 0 17.2 16.5 104 LITTLE WARM 9370 .0 4.9 0 15.4 19.1 81 OWL CREEK 8975 .0 1.2 0 6.9 10.2 68 SOUTH PASS 9040 .0 10.3 0 15.4 25.2 61 ST. LAWRENCE ALT 8620 .0 1.5 0 10.0 14.3 70 TOGWOTEE PASS 9580 15.0 25.8 58 28.7 31.6 91 TOWNSEND CREEK 8700 .0 3.5 0 12.9 17.9 72 ----- ----- Basin wide percent of average 18 78 BIGHORN BASIN BALD MTN. 9380 17.5 21.2 83 20.1 24.3 83 BEAR TRAP MEADOW 8200 .0 .0 100* 14.5 13.2 110 BONE SPRINGS DIV 9350 10.4 13.4 78 20.6 21.1 98 GRAVE SPRINGS 8550 .0 3.6 0 14.6 15.3 95 KIRWIN 9550 .0 9.2 0 17.2 16.5 104 MARQUETTE 8760 .0 -M * 13.9 16.7 83 MIDDLE POWDER 7760 .0 7.2 0 16.8 18.2 92 OWL CREEK 8975 .0 1.2 0 6.9 10.2 68 POWDER RIVER PASS 9480 .0 5.4 0 21.6 18.5 117 SHELL CREEK 9580 15.5 14.3 108 21.1 19.4 109 TIMBER CREEK 7950 .0 1.3 0 11.4 13.3 86 ----- ----- Basin wide percent of average 57 96 SHOSHONE RIVER BLACKWATER 9780 20.0 28.3 71 29.6 27.5 108 EVENING STAR 9200 21.0 30.6 69 38.8 33.0 118 MARQUETTE 8760 .0 -M * 13.9 16.7 83 SYLVAN ROAD 7120 .0 .7 0* 22.6 22.5 100 YOUNTS PEAK 8350 1.2 12.4 10 19.1 21.0 91 ----- ----- Basin wide percent of average 59 103 POWDER RIVER BEAR TRAP MEADOW 8200 .0 .0 100* 14.5 13.2 110 CLOUD PEAK RESERVOIR 9860 .0 12.3 0 21.0 20.4 103 GRAVE SPRINGS 8550 .0 3.6 0 14.6 15.3 95 HANSEN SAWMILL 8360 .0 .9 0 12.3 13.1 94 MIDDLE POWDER 7760 .0 7.2 0 16.8 18.2 92 POWDER RIVER PASS 9480 .0 5.4 0 21.6 18.5 117 SOLDIER PARK 8720 .0 -M * 13.3 -M * ----- ----- Basin wide percent of average 0 102 TONGUE RIVER BIG GOOSE 7990 .0 7.3 0 18.5 15.5 119 BONE SPRINGS DIV 9350 10.4 13.4 78 20.6 21.1 98 BURGESS JUNCTION 7880 .0 7.2 0 18.2 17.7 103 DOME LAKE 8880 .0 7.2 0 21.1 19.6 108 LITTLE GOOSE 8870 .0 -M * 21.6 -M * SUCKER CREEK 8880 .0 7.6 0 21.8 20.4 107 TIE CREEK 6870 .0 .2 0* 17.2 16.2 106 ----- ----- Basin wide percent of average 24 106 BELLE FOURCHE COLE CANYON 5910 .0 .0 100* 12.5 11.9 105 ----- ----- Basin wide percent of average * 105 CHEYENNE RIVER BASIN BLIND PARK 6890 .0 .0 100* 15.2 16.8 90 NORTH RAPID CREEK 6130 .0 .1 0* 13.3 13.2 101 ----- ----- Basin wide percent of average 0* 95 UPPER N. PLATTE ARAPAHO RIDGE 10960 .0 22.2 0 19.7 33.3 59 BLACKHALL MTN 9820 .0 -M * 27.0 -M * COLUMBINE 9160 .0 8.0 0 22.6 31.4 72 DIVIDE PEAK 8880 .0 8.7 0 21.4 26.6 80 JOE WRIGHT 10120 -M 21.8 * 23.3 33.5 70 LAPRELE CREEK 8375 .0 2.1 0 13.5 19.1 71 NORTH FRENCH CREEK 10130 -M 30.4 * 24.3 33.0 74 NEVER SUMMER 10280 .6 20.7 3 14.3 31.8 45 OLD BATTLE 10000 -M 32.3 * -M 43.1 * RAWAH 9020 .0 9.0 0 14.3 22.2 64 SAGE CREEK BASIN 7850 -M 5.0 * 11.7 15.4 76 SAND LAKE 10050 14.5 32.7 44 27.4 32.9 83 SOUTH BRUSH CREEK 8440 .0 4.2 0 14.1 22.7 62 TOWER 10500 14.0 49.2 28 36.3 48.7 75 WEBBER SPRINGS 9250 .1 13.2 1 25.1 33.7 74 WILLOW CREEK PASS 9540 -M 7.9 * 11.7 17.8 66 ZIRKEL 9340 .0 8.2 0 -M 32.3 * ----- ----- Basin wide percent of average 16 70 SWEETWATER DEER PARK 9700 .0 15.1 0 21.3 29.8 71 LARSEN CREEK 9000 .0 -M * 16.4 -M * SOUTH PASS 9040 .0 10.3 0 15.4 25.2 61 ----- ----- Basin wide percent of average 0 67 LOWER N. PLATTE CASPER MTN. 7900 .0 8.2 0 20.5 22.8 90 LAPRELE CREEK 8375 .0 2.1 0 13.5 19.1 71 RENO HILL 8400 .0 6.7 0 21.4 23.5 91 WINDY PEAK 7900 .0 .8 0* 10.2 16.0 64 ----- ----- Basin wide percent of average 0 81 LARAMIE RIVER BROOKLYN LAKE 10240 .0 18.7 0 23.3 30.0 78 CINNABAR PARK 9574 .0 6.7 0 22.5 26.1 86 CROW CREEK 8330 .1 .5 20* 12.4 14.1 88 DEADMAN HILL 10220 -M 15.8 * 19.3 23.7 81 RAWAH 9020 .0 9.0 0 14.3 22.2 64 ROACH 9700 .0 10.2 0 19.8 25.3 78 ----- ----- Basin wide percent of average 0 79 S. PLATTE BLACK MOUNTAIN 8920 .0 -M * 15.2 -M * CROW CREEK 8330 .1 .5 20* 12.4 14.1 88 DEADMAN HILL 10220 -M 15.8 * 19.3 23.7 81 ----- ----- Basin wide percent of average 20* 84 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 13.5 20.3 67 DIVIDE PEAK 8880 .0 8.7 0 21.4 26.6 80 ELK RIVER 8700 .0 4.2 0 17.5 25.2 69 LITTLE SNAKE RIVER 8915 .0 -M * 27.2 -M * OLD BATTLE 10000 -M 32.3 * -M 43.1 * SAGE CREEK BASIN 7850 -M 5.0 * 11.7 15.4 76 SANDSTONE RS 8150 .2 1.7 12 13.5 24.0 56 WHISKEY PARK 8950 .0 22.1 0 27.2 36.8 74 ----- ----- Basin wide percent of average 1 71 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 6.1 0 16.4 17.8 92 BLIND BULL SUM 8650 14.4 22.5 64 19.7 27.2 72 EAST RIM DIVIDE 7930 .0 6.3 0 13.3 15.4 86 ELKHART PARK G.S. 9400 .0 7.1 0 17.4 18.1 96 GROS VENTRE SUMMIT 8750 .0 7.5 0 13.4 16.9 79 GUNSIGHT PASS 9820 3.2 -M * 18.4 -M * KENDALL R.S. 7740 .0 .0 100* 16.5 18.0 92 LOOMIS PARK 8240 .2 6.8 3 18.6 21.7 86 NEW FORK LAKE 8340 .2 1.2 17 13.5 15.1 89 POCKET CREEK 9360 -M -M * 14.9 -M * SNIDER BASIN 8060 .0 4.5 0 15.1 19.9 76 SPRING CREEK DIVIDE 9000 12.0 21.2 57 26.1 32.3 81 TRIPLE PEAK 8500 .0 12.4 0 28.8 31.0 93 ----- ----- Basin wide percent of average 28 85 LOWER GREEN RIVER BLACKS FORK JCT 8870 .2 -M * 12.5 -M * BUCK PASTURE 9700 .1 -M * 6.2 -M * EF BLACKS FORK GS 9308 .2 -M * 13.2 -M * HAMS FORK 7840 .2 .0 * 12.2 16.3 75 HEWINTA 9519 .0 2.3 0 15.0 19.6 77 HICKERSON PARK 9145 .0 .7 0* 14.2 11.9 119 HOLE-IN-ROCK 9150 .3 .6 50* 14.2 11.5 123 INDIAN CREEK 9425 .7 20.4 3 21.6 31.6 68 KELLEY R.S. 8180 .0 6.1 0 17.8 25.4 70 SPIRIT LK 10223 .0 -M * 20.5 -M * STEEL CREEK PARK 10200 1.3 16.1 8 17.0 22.3 76 ----- ----- Basin wide percent of average 5* 81 UPPER BEAR RIVER BEAR RIVER RS 8500 .0 -M * 12.1 -M * BUG LAKE 7950 .1 7.0 1 18.5 24.3 76 BURTS MILLER RANCH 8000 .3 -M * 10.7 -M * CHALK CREEK #1 8993 .1 17.6 1 22.7 32.5 70 HAYDEN FORK 9212 .0 4.5 0 20.8 27.5 76 KELLEY R.S. 8180 .0 6.1 0 17.8 25.4 70 LILY LAKE 9156 .1 4.0 2 14.6 23.2 63 MONTE CRISTO 8960 .3 18.8 2 22.7 33.1 69 SALT RIVER SUMMIT 7760 .0 1.5 0 11.3 23.4 48 ----- ----- Basin wide percent of average 1 68 ----------------------------------------------------------------------------- -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.