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: APRIL 6 , 2013 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 14.4 15.2 95 19.2 20.5 94 BLACK BEAR 8170 35.0 37.2 94 33.5 37.6 89 BLIND BULL SUM 8650 18.4 23.1 80 13.2 19.2 69 COTTONWOOD CREEK 7670 15.6 21.0 74 22.4 24.3 92 EAST RIM DIVIDE 7930 7.5 10.2 74 8.0 11.6 69 GRAND TARGHEE 9260 35.1 38.2 92 27.3 30.4 90 GRANITE CREEK 6770 11.0 14.6 75 14.4 19.4 74 GRASSY LAKE 7265 26.4 31.5 84 30.6 35.3 87 GROS VENTRE SUMMIT 8750 9.9 12.9 77 10.4 12.7 82 GUNSIGHT PASS 9820 10.7 13.7 78 11.4 13.6 84 LEWIS LAKE DIVIDE 7850 27.4 29.8 92 30.7 34.8 88 PHILLIPS BENCH 8200 21.5 25.2 85 23.0 27.7 83 SALT RIVER SUMMIT 7760 8.5 12.9 66 13.6 16.4 83 SNAKE RIVER STATION 6920 12.4 14.9 83 20.5 22.1 93 SPRING CREEK DIVIDE 9000 20.9 22.5 93 20.5 23.5 87 THUMB DIVIDE 7980 13.8 14.7 94 16.2 18.3 89 TOGWOTEE PASS 9580 19.7 22.0 90 20.6 23.9 86 TWO OCEAN PLATEAU 9240 27.0 25.9 104 23.8 26.6 89 WILLOW CREEK 8380 23.1 28.4 81 29.1 33.0 88 YOUNTS PEAK 8350 11.8 14.3 83 11.2 15.5 72 ----- ----- Basin wide percent 86 86 MADISON-GALLATIN BLACK BEAR 8170 35.0 37.2 94 33.5 37.6 89 CANYON 7870 10.7 12.5 86 11.9 16.0 74 MADISON PLATEAU 7750 20.5 21.4 96 23.7 25.9 92 WEST YELLOWSTONE 6700 7.0 9.7 72 13.3 14.0 95 WHISKEY CREEK 6800 10.6 14.9 71 17.4 19.8 88 ----- ----- Basin wide percent 88 88 YELLOWSTONE BEARTOOTH LAKE 9360 16.1 21.2 76 16.5 19.4 85 BURNT MTN 5880 .1 4.6 2 8.7 12.8 68 CANYON 7870 10.7 12.5 86 11.9 16.0 74 COLE CREEK 7850 9.6 14.4 67 7.4 12.7 58 EVENING STAR 9200 22.6 23.7 95 25.9 26.8 97 FISHER CREEK 9100 30.2 31.1 97 29.6 31.1 95 NORTHEAST ENTRANCE 7350 5.3 9.1 58 10.8 12.0 90 PARKER PEAK 9400 19.8 19.3 103 19.5 17.3 113 SYLVAN LAKE 8420 16.2 19.3 84 21.7 21.8 100 THUMB DIVIDE 7980 13.8 14.7 94 16.2 18.3 89 TWO OCEAN PLATEAU 9240 27.0 25.9 104 23.8 26.6 89 WHITE MILL 8700 21.1 22.1 95 20.6 23.2 89 WOLVERINE 7650 6.6 9.5 69 9.8 12.0 82 ----- ----- Basin wide percent 88 89 WIND RIVER BURROUGHS CREEK 8750 10.4 13.0 80 9.4 15.6 60 CASTLE CREEK 8400 3.7 -M * 7.4 -M * COLD SPRINGS 9630 5.5 6.8 81 7.8 9.8 80 DEER PARK 9700 11.2 15.4 73 13.0 19.6 66 HOBBS PARK 10100 10.4 14.0 74 9.6 13.2 73 KIRWIN 9550 -M 9.6 * -M 11.4 * LITTLE WARM 9370 9.0 10.2 88 10.8 12.6 86 OWL CREEK 8975 4.9 5.8 84 5.4 5.9 92 SOUTH PASS 9040 9.8 15.1 65 9.3 17.1 54 ST. LAWRENCE ALT 8620 1.9 6.8 28 6.8 8.9 76 TOGWOTEE PASS 9580 19.7 22.0 90 20.6 23.9 86 TOWNSEND CREEK 8700 5.2 9.5 55 8.1 11.9 68 ----- ----- Basin wide percent 74 73 BIGHORN BASIN BALD MTN. 9380 14.0 19.0 74 9.7 16.7 58 BEAR TRAP MEADOW 8200 7.7 5.0 154 8.8 8.4 105 BONE SPRINGS DIV 9350 13.2 16.7 79 10.9 15.3 71 GRAVE SPRINGS 8550 7.0 9.3 75 7.7 10.4 74 KIRWIN 9550 -M 9.6 * -M 11.4 * MARQUETTE 8760 6.0 -M * 8.1 -M * MIDDLE POWDER 7760 10.5 11.9 88 12.8 11.5 111 OWL CREEK 8975 4.9 5.8 84 5.4 5.9 92 POWDER RIVER PASS 9480 10.6 10.1 105 12.6 12.4 102 SHELL CREEK 9580 13.4 15.0 89 12.0 13.6 88 TIMBER CREEK 7950 3.2 4.9 65 6.5 7.2 90 ----- ----- Basin wide percent 86 85 SHOSHONE RIVER BLACKWATER 9780 20.9 22.4 93 20.8 20.2 103 EVENING STAR 9200 22.6 23.7 95 25.9 26.8 97 MARQUETTE 8760 6.0 -M * 8.1 -M * SYLVAN ROAD 7120 5.3 10.8 49 15.1 16.5 92 YOUNTS PEAK 8350 11.8 14.3 83 11.2 15.5 72 ----- ----- Basin wide percent 85 92 POWDER RIVER BEAR TRAP MEADOW 8200 7.7 5.0 154 8.8 8.4 105 CLOUD PEAK RESERVOIR 9860 11.6 14.7 79 10.9 13.1 83 GRAVE SPRINGS 8550 7.0 9.3 75 7.7 10.4 74 HANSEN SAWMILL 8360 5.8 6.2 94 7.4 8.4 88 MIDDLE POWDER 7760 10.5 11.9 88 12.8 11.5 111 POWDER RIVER PASS 9480 10.6 10.1 105 12.6 12.4 102 SOLDIER PARK 8720 4.2 -M * 7.2 -M * ----- ----- Basin wide percent 93 94 TONGUE RIVER BIG GOOSE 7990 6.8 9.5 72 8.3 11.2 74 BONE SPRINGS DIV 9350 13.2 16.7 79 10.9 15.3 71 BURGESS JUNCTION 7880 9.8 11.8 83 9.4 12.2 77 DOME LAKE 8880 8.4 11.7 72 8.8 13.4 66 LITTLE GOOSE 8870 7.6 -M * 11.1 -M * SUCKER CREEK 8880 11.1 12.0 92 11.9 14.2 84 TIE CREEK 6870 4.1 5.5 75 9.7 11.5 84 ----- ----- Basin wide percent 79 76 BELLE FOURCHE COLE CANYON 5910 3.3 5.3 62 6.9 9.3 74 ----- ----- Basin wide percent 62 74 CHEYENNE RIVER BASIN BLIND PARK 6890 5.0 7.1 70 10.9 11.8 92 NORTH RAPID CREEK 6130 5.4 6.6 82 8.7 9.8 89 ----- ----- Basin wide percent 76 91 UPPER N. PLATTE ARAPAHO RIDGE 10960 18.6 20.7 90 18.6 22.2 84 BLACKHALL MTN 9820 23.6 -M * 24.5 -M * COLUMBINE 9160 19.5 23.4 83 21.5 25.2 85 DIVIDE PEAK 8880 12.1 19.8 61 16.5 21.2 78 JOE WRIGHT 10120 15.1 21.0 72 23.1 25.5 91 LAPRELE CREEK 8375 4.7 9.4 50 7.4 12.3 60 MED BOW 10500 15.5 -M * 27.4 -M * NORTH FRENCH CREEK 10130 21.2 29.2 73 20.8 26.4 79 NEVER SUMMER 10280 15.0 20.3 74 11.5 -M * OLD BATTLE 10000 23.8 31.1 77 25.9 34.6 75 RAWAH 9020 9.3 10.6 88 13.3 -M * SAGE CREEK BASIN 7850 -M 12.2 * 9.8 14.3 69 SAND LAKE 10050 21.2 28.6 74 21.2 24.5 87 SOUTH BRUSH CREEK 8440 7.1 12.0 59 10.7 15.0 71 TOWER 10500 32.3 45.6 71 27.0 39.4 69 WEBBER SPRINGS 9250 17.6 23.1 76 19.9 26.4 75 WILLOW CREEK PASS 9540 12.3 12.1 102 13.1 13.3 98 ZIRKEL 9340 20.4 26.3 78 25.0 -M * ----- ----- Basin wide percent 75 78 SWEETWATER DEER PARK 9700 11.2 15.4 73 13.0 19.6 66 LARSEN CREEK 9000 3.8 -M * 10.2 -M * SOUTH PASS 9040 9.8 15.1 65 9.3 17.1 54 ----- ----- Basin wide percent 69 61 LOWER N. PLATTE CASPER MTN. 7900 9.2 14.3 64 8.3 14.7 56 LAPRELE CREEK 8375 4.7 9.4 50 7.4 12.3 60 RENO HILL 8400 9.5 14.0 68 11.3 15.2 74 WINDY PEAK 7900 3.6 7.8 46 6.5 10.4 62 ----- ----- Basin wide percent 59 64 LARAMIE RIVER BROOKLYN LAKE 10240 16.1 21.5 75 15.6 20.9 75 CINNABAR PARK 9574 13.8 21.0 66 16.6 24.0 69 CROW CREEK 8330 3.7 7.0 53 7.4 10.7 69 DEADMAN HILL 10220 13.7 16.0 86 13.3 17.1 78 RAWAH 9020 9.3 10.6 88 13.3 -M * ROACH 9700 11.9 16.4 73 14.0 19.0 74 ----- ----- Basin wide percent 74 73 S. PLATTE BLACK MOUNTAIN 8920 8.2 -M * 10.0 -M * CROW CREEK 8330 3.7 7.0 53 7.4 10.7 69 DEADMAN HILL 10220 13.7 16.0 86 13.3 17.1 78 ----- ----- Basin wide percent 76 74 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 5.3 9.8 54 10.2 14.8 69 DIVIDE PEAK 8880 12.1 19.8 61 16.5 21.2 78 ELK RIVER 8700 -M 19.2 * -M 19.8 * LITTLE SNAKE RIVER 8915 17.3 24.9 69 23.5 29.2 80 OLD BATTLE 10000 23.8 31.1 77 25.9 34.6 75 SAGE CREEK BASIN 7850 -M 12.2 * 9.8 14.3 69 SANDSTONE RS 8150 6.8 12.8 53 11.1 18.1 61 WHISKEY PARK 8950 20.6 27.2 76 23.4 27.6 85 ----- ----- Basin wide percent 68 75 UPPER GREEN RIVER BIG SANDY OPENING 9080 9.5 12.5 76 9.7 13.0 75 BLIND BULL SUM 8650 18.4 23.1 80 13.2 19.2 69 EAST RIM DIVIDE 7930 7.5 10.2 74 8.0 11.6 69 ELKHART PARK G.S. 9400 8.9 12.2 73 9.5 13.1 73 GROS VENTRE SUMMIT 8750 9.9 12.9 77 10.4 12.7 82 GUNSIGHT PASS 9820 10.7 13.7 78 11.4 13.6 84 KENDALL R.S. 7740 6.9 11.5 60 10.2 14.0 73 LOOMIS PARK 8240 9.3 13.8 67 12.3 17.0 72 NEW FORK LAKE 8340 6.3 10.3 61 -M 10.6 * POCKET CREEK 9360 7.0 -M * 9.2 -M * SNIDER BASIN 8060 7.1 12.3 58 11.8 14.0 84 SPRING CREEK DIVIDE 9000 20.9 22.5 93 20.5 23.5 87 TRIPLE PEAK 8500 17.6 21.9 80 20.9 25.0 84 ----- ----- Basin wide percent 75 78 LOWER GREEN RIVER BLACKS FORK JCT 8870 7.1 -M * 10.1 -M * BUCK PASTURE 9700 12.6 -M * 14.7 -M * EF BLACKS FORK GS 9308 12.9 -M * 9.8 -M * HAMS FORK 7840 6.1 10.7 57 8.4 11.2 75 HEWINTA 9519 10.6 10.9 97 12.4 13.9 89 HICKERSON PARK 9145 6.4 7.9 81 9.2 10.1 91 HOLE-IN-ROCK 9150 8.6 7.0 123 10.2 9.7 105 INDIAN CREEK 9425 16.8 24.6 68 15.8 22.3 71 KELLEY R.S. 8180 10.8 14.8 73 12.8 17.8 72 SPIRIT LK 10223 10.4 -M * 14.5 -M * STEEL CREEK PARK 10200 13.2 15.7 84 14.9 16.3 91 ----- ----- Basin wide percent 79 83 UPPER BEAR RIVER BEAR RIVER RS 8500 7.8 -M * 11.3 -M * BUG LAKE 7950 11.1 18.3 61 14.9 19.2 78 BURTS MILLER RANCH 8000 5.4 -M * 7.7 -M * CHALK CREEK #1 8993 17.7 24.3 73 20.6 24.9 83 HAYDEN FORK 9212 10.6 15.4 69 16.0 20.9 77 KELLEY R.S. 8180 10.8 14.8 73 12.8 17.8 72 LILY LAKE 9156 11.6 12.6 92 12.5 17.0 74 MONTE CRISTO 8960 17.4 27.6 63 20.8 25.6 81 SALT RIVER SUMMIT 7760 8.5 12.9 66 13.6 16.4 83 ----- ----- Basin wide percent 70 78 ----------------------------------------------------------------------------- -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 wide percent 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. Reference period for comparison of conditions is 1981-2010. 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.