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: MARCH 24 , 2012 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 19.5 17.9 109 23.5 20.9 112 BLACK BEAR 8170 38.8 38.1 102 38.7 39.1 99 BLIND BULL SUM 8650 22.0 27.3 81 16.8 21.6 78 COTTONWOOD CREEK 7670 18.0 23.2 78 23.8 26.5 90 EAST RIM DIVIDE 7930 10.7 12.8 84 11.4 11.7 97 GRAND TARGHEE 9260 36.0 -M * 28.8 -M * GRANITE CREEK 6770 15.2 18.6 82 16.4 19.6 84 GRASSY LAKE 7265 32.5 34.7 94 36.1 35.1 103 GROS VENTRE SUMMIT 8750 9.7 13.8 70 10.4 12.5 83 GUNSIGHT PASS 9820 12.5 -M * 13.7 -M * LEWIS LAKE DIVIDE 7850 30.8 34.6 89 33.2 35.9 92 PHILLIPS BENCH 8200 23.7 28.0 85 25.0 28.2 89 SALT RIVER SUMMIT 7760 10.4 14.1 74 11.3 18.1 62 SNAKE RIVER STATION 6920 16.9 19.0 89 24.0 21.8 110 SPRING CREEK DIVIDE 9000 22.2 25.8 86 22.0 25.6 86 THUMB DIVIDE 7980 16.7 18.6 90 17.5 18.3 96 TOGWOTEE PASS 9580 21.4 24.1 89 23.3 23.8 98 TWO OCEAN PLATEAU 9240 31.6 27.1 117 27.0 26.9 100 WILLOW CREEK 8380 24.3 29.5 82 30.4 31.2 97 YOUNTS PEAK 8350 16.0 16.6 96 15.3 15.6 98 ----- ----- Basin wide percent of average 90 94 MADISON-GALLATIN BLACK BEAR 8170 38.8 38.1 102 38.7 39.1 99 CANYON 7870 12.1 13.4 90 14.2 15.0 95 MADISON PLATEAU 7750 24.2 24.3 100 28.4 25.8 110 WEST YELLOWSTONE 6700 11.1 12.5 89 16.3 12.6 129 WHISKEY CREEK 6800 16.1 16.6 97 21.2 20.3 104 ----- ----- Basin wide percent of average 98 105 YELLOWSTONE BEARTOOTH LAKE 9360 23.9 22.8 105 23.2 19.5 119 BURNT MTN 5880 3.2 5.9 54 11.3 14.1 80 CANYON 7870 12.1 13.4 90 14.2 15.0 95 COLE CREEK 7850 14.2 14.8 96 11.3 15.4 73 EVENING STAR 9200 28.2 28.8 98 30.8 24.5 126 FISHER CREEK 9100 34.1 33.9 101 32.5 35.3 92 NORTHEAST ENTRANCE 7350 9.8 11.0 89 -M 12.3 * PARKER PEAK 9400 22.6 20.9 108 22.2 15.7 141 SYLVAN LAKE 8420 18.6 21.8 85 23.9 20.3 118 THUMB DIVIDE 7980 16.7 18.6 90 17.5 18.3 96 TWO OCEAN PLATEAU 9240 31.6 27.1 117 27.0 26.9 100 WHITE MILL 8700 21.9 23.5 93 22.6 26.2 86 WOLVERINE 7650 11.6 11.5 101 12.8 12.4 103 ----- ----- Basin wide percent of average 98 102 WIND RIVER BURROUGHS CREEK 8750 14.0 14.2 99 14.3 15.7 91 CASTLE CREEK 8400 7.3 -M * 8.6 -M * COLD SPRINGS 9630 7.4 8.5 87 9.1 10.0 91 DEER PARK 9700 10.7 16.4 65 16.6 21.0 79 HOBBS PARK 10100 13.8 14.0 99 12.8 12.0 107 KIRWIN 9550 12.0 10.8 111 14.0 10.7 131 LITTLE WARM 9370 8.6 11.3 76 11.0 12.8 86 OWL CREEK 8975 4.7 5.2 90 5.6 5.4 104 SOUTH PASS 9040 12.9 16.1 80 13.1 17.6 74 ST. LAWRENCE ALT 8620 3.5 6.9 51 7.3 8.3 88 TOGWOTEE PASS 9580 21.4 24.1 89 23.3 23.8 98 TOWNSEND CREEK 8700 7.8 8.1 96 11.0 10.8 102 ----- ----- Basin wide percent of average 86 93 BIGHORN BASIN BALD MTN. 9380 20.6 18.7 110 15.3 16.5 93 BEAR TRAP MEADOW 8200 8.0 5.3 151 8.8 7.7 114 BONE SPRINGS DIV 9350 19.4 15.4 126 15.3 13.8 111 GRAVE SPRINGS 8550 8.5 8.8 97 10.1 9.2 110 KIRWIN 9550 12.0 10.8 111 14.0 10.7 131 MARQUETTE 8760 8.7 -M * 11.5 9.0 128 MIDDLE POWDER 7760 10.4 11.1 94 10.6 11.6 91 OWL CREEK 8975 4.7 5.2 90 5.6 5.4 104 POWDER RIVER PASS 9480 11.8 10.4 113 15.0 11.7 128 SHELL CREEK 9580 17.9 14.0 128 15.6 12.6 124 TIMBER CREEK 7950 3.3 5.4 61 8.7 6.8 128 ----- ----- Basin wide percent of average 111 113 SHOSHONE RIVER BLACKWATER 9780 24.0 23.6 102 23.7 19.8 120 EVENING STAR 9200 28.2 28.8 98 30.8 24.5 126 MARQUETTE 8760 8.7 -M * 11.5 9.0 128 SYLVAN ROAD 7120 12.0 12.5 96 17.5 17.2 102 YOUNTS PEAK 8350 16.0 16.6 96 15.3 15.6 98 ----- ----- Basin wide percent of average 98 115 POWDER RIVER BEAR TRAP MEADOW 8200 8.0 5.3 151 8.8 7.7 114 CLOUD PEAK RESERVOIR 9860 15.7 12.5 126 14.9 11.9 125 GRAVE SPRINGS 8550 8.5 8.8 97 10.1 9.2 110 HANSEN SAWMILL 8360 5.0 6.3 79 8.4 7.6 111 MIDDLE POWDER 7760 10.4 11.1 94 10.6 11.6 91 POWDER RIVER PASS 9480 11.8 10.4 113 15.0 11.7 128 SOLDIER PARK 8720 12.3 -M * 9.8 -M * ----- ----- Basin wide percent of average 109 114 TONGUE RIVER BIG GOOSE 7990 9.2 9.6 96 13.5 8.0 169 BONE SPRINGS DIV 9350 19.4 15.4 126 15.3 13.8 111 BURGESS JUNCTION 7880 11.9 10.9 109 13.9 11.4 122 DOME LAKE 8880 14.4 11.5 125 14.3 12.3 116 LITTLE GOOSE 8870 9.9 -M * 15.5 -M * SUCKER CREEK 8880 13.2 11.0 120 14.7 12.7 116 TIE CREEK 6870 3.5 5.9 59 13.4 9.3 144 ----- ----- Basin wide percent of average 111 126 BELLE FOURCHE COLE CANYON 5910 3.9 6.6 59 8.0 6.4 125 ----- ----- Basin wide percent of average 59 125 CHEYENNE RIVER BASIN BLIND PARK 6890 3.7 8.7 43 9.9 10.6 93 NORTH RAPID CREEK 6130 4.8 7.9 61 7.8 8.3 94 ----- ----- Basin wide percent of average 51 94 UPPER N. PLATTE ARAPAHOE 4020 -M -M * -M -M * BLACKHALL MTN 9820 21.0 -M * 23.1 -M * COLUMBINE 9160 16.0 24.6 65 19.4 24.2 80 DIVIDE PEAK 8880 13.7 19.0 72 18.7 19.9 94 JOE WRIGHT 10120 13.3 20.3 66 18.4 23.6 78 LAPRELE CREEK 8375 8.8 10.6 83 11.6 11.9 97 NORTH FRENCH CREEK 10130 19.1 27.6 69 19.2 23.6 81 NEVER SUMMER 10280 11.8 19.3 61 10.9 22.4 49 OLD BATTLE 10000 22.5 31.0 73 26.9 33.3 81 RAWAH 9020 6.6 14.3 46 10.8 15.6 69 SAGE CREEK BASIN 7850 9.6 11.0 87 10.1 11.5 88 SAND LAKE 10050 22.8 30.9 74 22.7 22.9 99 SOUTH BRUSH CREEK 8440 6.7 12.6 53 11.6 15.5 75 TOWER 10500 28.8 43.6 66 30.5 36.9 83 WEBBER SPRINGS 9250 16.5 25.7 64 20.9 25.6 82 WILLOW CREEK PASS 9540 -M 11.4 * 9.2 12.2 75 ZIRKEL 9340 21.6 25.3 85 -M 25.0 * ----- ----- Basin wide percent of average 69 81 SWEETWATER DEER PARK 9700 10.7 16.4 65 16.6 21.0 79 LARSEN CREEK 9000 10.6 -M * 13.1 -M * SOUTH PASS 9040 12.9 16.1 80 13.1 17.6 74 ----- ----- Basin wide percent of average 73 77 LOWER N. PLATTE CASPER MTN. 7900 17.6 13.5 130 17.6 13.4 131 LAPRELE CREEK 8375 8.8 10.6 83 11.6 11.9 97 RENO HILL 8400 14.7 13.2 111 17.1 13.9 123 WINDY PEAK 7900 6.5 7.7 84 8.6 10.0 86 ----- ----- Basin wide percent of average 106 112 LARAMIE RIVER BROOKLYN LAKE 10240 16.5 22.5 73 18.5 20.9 89 CINNABAR PARK 9574 15.1 17.6 86 19.3 19.3 100 CROW CREEK 8330 6.4 8.5 75 10.1 9.4 107 DEADMAN HILL 10220 16.1 15.4 105 14.9 16.0 93 RAWAH 9020 6.6 14.3 46 10.8 15.6 69 ROACH 9700 12.6 16.2 78 15.8 17.8 89 ----- ----- Basin wide percent of average 78 90 S. PLATTE BLACK MOUNTAIN 8920 10.3 -M * 12.2 -M * CROW CREEK 8330 6.4 8.5 75 10.1 9.4 107 DEADMAN HILL 10220 16.1 15.4 105 14.9 16.0 93 ----- ----- Basin wide percent of average 94 98 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 8.4 11.5 73 11.8 15.0 79 DIVIDE PEAK 8880 13.7 19.0 72 18.7 19.9 94 ELK RIVER 8700 12.7 18.8 68 15.3 18.8 81 LITTLE SNAKE RIVER 8915 17.9 -M * 23.9 -M * OLD BATTLE 10000 22.5 31.0 73 26.9 33.3 81 SAGE CREEK BASIN 7850 9.6 11.0 87 10.1 11.5 88 SANDSTONE RS 8150 9.0 14.9 60 12.0 18.1 66 WHISKEY PARK 8950 19.8 29.2 68 23.7 27.5 86 ----- ----- Basin wide percent of average 71 82 UPPER GREEN RIVER BIG SANDY OPENING 9080 12.8 14.0 91 12.8 12.9 99 BLIND BULL SUM 8650 22.0 27.3 81 16.8 21.6 78 EAST RIM DIVIDE 7930 10.7 12.8 84 11.4 11.7 97 ELKHART PARK G.S. 9400 13.1 13.0 101 14.1 12.8 110 GROS VENTRE SUMMIT 8750 9.7 13.8 70 10.4 12.5 83 GUNSIGHT PASS 9820 12.5 -M * 13.7 -M * KENDALL R.S. 7740 13.8 14.5 95 14.9 14.2 105 LOOMIS PARK 8240 13.7 17.1 80 16.1 16.9 95 NEW FORK LAKE 8340 11.3 11.0 103 10.5 11.0 95 POCKET CREEK 9360 9.6 -M * 11.7 -M * SNIDER BASIN 8060 12.3 14.3 86 12.8 15.6 82 SPRING CREEK DIVIDE 9000 22.2 25.8 86 22.0 25.6 86 TRIPLE PEAK 8500 21.9 24.3 90 24.5 24.0 102 ----- ----- Basin wide percent of average 87 93 LOWER GREEN RIVER BLACKS FORK JCT 8870 4.6 -M * 10.2 -M * BUCK PASTURE 9700 .1 -M * 3.7 -M * EF BLACKS FORK GS 9308 8.6 -M * 9.0 -M * HAMS FORK 7840 9.3 12.4 75 9.4 11.8 80 HEWINTA 9519 9.2 11.3 81 12.0 13.8 87 HICKERSON PARK 9145 8.2 7.0 117 11.8 7.5 157 HOLE-IN-ROCK 9150 7.8 6.8 115 11.8 7.0 169 INDIAN CREEK 9425 19.8 26.9 74 17.3 24.5 71 KELLEY R.S. 8180 12.5 16.5 76 14.7 19.6 75 SPIRIT LK 10223 11.4 -M * 17.4 -M * STEEL CREEK PARK 10200 9.6 15.1 64 13.9 15.3 91 ----- ----- Basin wide percent of average 80 91 UPPER BEAR RIVER BEAR RIVER RS 8500 4.7 -M * 9.7 -M * BUG LAKE 7950 14.7 20.3 72 15.2 18.6 82 BURTS MILLER RANCH 8000 4.4 -M * 9.9 -M * CHALK CREEK #1 8993 15.0 23.9 63 17.9 24.1 74 HAYDEN FORK 9212 9.8 15.9 62 17.0 20.1 85 KELLEY R.S. 8180 12.5 16.5 76 14.7 19.6 75 LILY LAKE 9156 8.9 12.6 71 11.6 16.7 69 MONTE CRISTO 8960 18.0 29.1 62 18.2 24.6 74 SALT RIVER SUMMIT 7760 10.4 14.1 74 11.3 18.1 62 ----- ----- Basin wide percent of average 67 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.