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 WEDNESDAY: MARCH 28 , 2001 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 7.6 17.5 43 11.3 22.5 50 COTTONWOOD CREEK 7600 15.3 23.8 64 18.1 25.3 72 GRANITE CREEK 6770 10.8 18.4 59 14.0 23.6 59 GRASSY LAKE 7265 19.4 35.5 55 22.3 37.4 60 GROS VENTRE SUMMIT 8775 9.4 15.5 61 8.3 16.0 52 LEWIS LAKE DIVIDE 7860 16.0 35.0 46 18.2 38.0 48 PHILLIPS BENCH 8200 15.8 28.8 55 -M 30.0 * SALT RIVER SUMMIT 7600 7.6 14.2 54 11.3 17.0 66 SNAKE RIVER STATION 6920 9.9 18.5 54 14.1 26.2 54 SPRING CREEK DIVIDE 9000 16.3 27.7 59 16.3 27.6 59 THUMB DIVIDE 7980 7.3 16.9 43 10.1 21.0 48 TOGWOTEE PASS 9580 15.8 24.7 64 16.0 28.4 56 TWO OCEAN PLATEAU 9360 18.3 26.3 70 16.2 30.9 52 WILLOW CREEK 8450 17.4 30.0 58 22.8 32.3 71 ----- ----- Basin wide percent of average 56 57 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 11.4 23.3 49 10.6 17.8 60 BLACK BEAR 7950 22.2 37.7 59 22.3 40.3 55 CANYON 7940 8.5 12.8 66 10.7 14.1 76 FISHER CREEK 9100 18.0 35.4 51 18.8 36.3 52 MADISON PLATEAU 7750 12.6 24.3 52 15.0 26.1 57 NORTHEAST ENTRANCE 7350 4.2 9.1 46 7.0 11.7 60 PARKER PEAK 9400 13.2 21.4 62 11.9 15.4 77 SYLVAN LAKE 8420 13.7 21.9 63 16.8 18.9 89 THUMB DIVIDE 7980 7.3 16.9 43 10.1 21.0 48 TWO OCEAN PLATEAU 9360 18.3 26.3 70 16.2 30.9 52 WHISKEY CREEK 6800 6.9 17.1 40 12.7 21.7 59 WHITE MILL 8700 12.6 24.7 51 12.5 28.1 44 WOLVERINE 7650 6.2 11.5 54 7.2 12.6 57 ----- ----- Basin wide percent of average 55 58 WIND RIVER BURROUGHS CREEK 8750 -M 14.8 * 9.0 16.4 55 COLD SPRINGS 9630 3.0 8.2 37 4.5 10.3 44 DEER PARK 9700 10.3 -M * 11.3 -M * HOBBS PARK 10100 6.2 14.7 42 5.9 13.8 43 LITTLE WARM 9620 7.3 11.3 65 7.4 13.0 57 SOUTH PASS 9040 8.9 16.1 55 8.3 16.7 50 ST. LAWRENCE ALT 8620 3.0 7.5 40 3.7 9.9 37 TOGWOTEE PASS 9580 15.8 24.7 64 16.0 28.4 56 TOWNSEND CREEK 8700 4.9 9.7 51 5.6 12.2 46 ----- ----- Basin wide percent of average 53 50 BIGHORN BASIN BALD MTN. 9375 13.0 20.1 65 11.6 17.0 68 BEAR TRAP MEADOW 7900 5.1 7.0 73 5.4 8.0 68 BLACKWATER 9780 13.9 21.9 63 13.0 17.7 73 BONE SPRINGS DIV 9350 9.7 16.1 60 10.0 14.7 68 EVENING STAR 9200 13.8 26.6 52 17.4 22.2 78 GRAVE SPRINGS 8550 5.7 9.3 61 6.1 9.3 66 KIRWIN 9550 5.2 9.8 53 6.1 10.5 58 MARQUETTE 8760 3.9 7.9 49 5.0 9.2 54 MIDDLE POWDER 7760 7.7 11.9 65 6.6 11.5 57 OWL CREEK 8975 3.2 4.5 71 3.4 6.0 57 POWDER RIVER PASS 9480 6.0 10.7 56 7.8 11.2 70 SHELL CREEK 9580 10.2 14.7 69 9.7 12.8 76 SYLVAN LAKE 8420 13.7 21.9 63 16.8 18.9 89 SYLVAN ROAD 8120 7.9 12.5 63 12.4 15.9 78 TIMBER CREEK 7950 2.9 6.1 48 4.0 6.8 59 YOUNTS PEAK 8350 8.2 17.0 48 9.0 16.3 55 ----- ----- Basin wide percent of average 60 69 SHOSHONE RIVER BLACKWATER 9780 13.9 21.9 63 13.0 17.7 73 EVENING STAR 9200 13.8 26.6 52 17.4 22.2 78 KIRWIN 9550 5.2 9.8 53 6.1 10.5 58 MARQUETTE 8760 3.9 7.9 49 5.0 9.2 54 SYLVAN LAKE 8420 13.7 21.9 63 16.8 18.9 89 SYLVAN ROAD 8120 7.9 12.5 63 12.4 15.9 78 YOUNTS PEAK 8350 8.2 17.0 48 9.0 16.3 55 ----- ----- Basin wide percent of average 57 72 POWDER-TONGUE BEAR TRAP MEADOW 7900 5.1 7.0 73 5.4 8.0 68 BIG GOOSE 7990 5.5 -M * 6.5 -M * BONE SPRINGS DIV 9350 9.7 16.1 60 10.0 14.7 68 BURGESS JUNCTION 7880 7.5 11.5 65 7.4 11.1 67 CLOUD PEAK RESERVOIR 9860 9.2 14.5 63 8.5 12.9 66 DOME LAKE 8880 8.8 13.5 65 7.8 12.8 61 GRAVE SPRINGS 8550 5.7 9.3 61 6.1 9.3 66 HANSEN SAWMILL 8760 4.3 7.0 61 5.4 7.7 70 MIDDLE POWDER 7760 7.7 11.9 65 6.6 11.5 57 POWDER RIVER PASS 9480 6.0 10.7 56 7.8 11.2 70 SUCKER CREEK 8880 7.5 11.9 63 8.7 12.8 68 TIE CREEK 6870 4.4 -M * 6.9 10.6 65 ----- ----- Basin wide percent of average 63 66 BELLE FOURCHE BLIND PARK 6890 7.6 10.9 70 10.6 9.7 109 COLE CANYON 5910 6.1 6.1 100 9.5 7.8 122 NORTH RAPID CREEK 6130 7.5 -M * 8.6 -M * ----- ----- Basin wide percent of average 81 115 UPPER N. PLATTE RIVER COLUMBINE 9400 20.0 24.5 82 19.8 24.0 82 DIVIDE PEAK 8800 14.9 20.7 72 15.9 22.3 71 ELK RIVER 8700 16.4 19.6 84 15.2 18.7 81 JOE WRIGHT 10120 -M 21.5 * -M 24.4 * NORTH FRENCH CREEK 10100 25.2 25.0 101 18.8 22.9 82 OLD BATTLE 10000 22.6 31.4 72 24.7 29.5 84 SOUTH BRUSH CREEK 8400 8.7 12.9 67 -M 15.9 * TOWER 10500 -M 44.4 * -M 35.4 * WEBBER SPRINGS 9200 16.3 27.5 59 17.6 24.6 72 WILLOW CREEK PASS 9540 11.5 11.6 99 12.0 12.3 98 ----- ----- Basin wide percent of average 78 80 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 16.0 25.5 63 14.6 18.9 77 CASPER MTN. 7900 10.9 16.0 68 9.2 13.6 68 DEADMAN HILL 10220 12.0 16.2 74 11.1 16.2 69 DEER PARK 9700 10.3 -M * 11.3 -M * LAPRELE CREEK 8320 9.2 10.3 89 9.1 11.5 79 RENO HILL 8400 12.3 13.9 88 10.8 18.6 58 ROACH 9700 11.1 17.0 65 13.2 20.6 64 SAND LAKE 10080 23.1 32.3 72 18.9 19.8 95 SOUTH PASS 9040 8.9 16.1 55 8.3 16.7 50 WINDY PEAK 7840 7.6 8.5 89 8.2 9.2 89 ----- ----- Basin wide percent of average 71 71 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 8.0 11.2 71 11.8 15.0 79 DIVIDE PEAK 8800 14.9 20.7 72 15.9 22.3 71 OLD BATTLE 10000 22.6 31.4 72 24.7 29.5 84 SANDSTONE RS 8150 10.8 14.7 73 14.7 18.2 81 WHISKEY PARK 8950 20.4 28.4 72 19.4 27.5 71 ----- ----- Basin wide percent of average 72 77 UPPER GREEN RIVER BIG SANDY OPENING 9100 9.6 14.4 67 8.8 16.3 54 BLIND BULL SUM 8650 14.9 29.2 51 12.3 24.1 51 EAST RIM DIVIDE 7930 9.7 13.8 70 8.7 15.3 57 ELKHART PARK G.S. 9400 10.7 13.6 79 10.4 16.0 65 GROS VENTRE SUMMIT 8775 9.4 15.5 61 8.3 16.0 52 KENDALL R.S. 7740 8.0 14.6 55 8.9 15.6 57 LOOMIS PARK 8240 11.0 17.3 64 11.7 19.0 62 NEW FORK LAKE 8340 8.4 11.2 75 8.1 14.6 55 SNIDER BASIN 8250 8.3 14.7 56 9.5 15.3 62 SPRING CREEK DIVIDE 9000 16.3 27.7 59 16.3 27.6 59 TRIPLE PEAK 8500 14.4 25.4 57 16.8 31.2 54 ----- ----- Basin wide percent of average 61 57 LOWER GREEN RIVER HAMS FORK 7840 7.8 12.2 64 7.7 13.5 57 HEWINTA 9500 6.2 11.1 56 10.4 12.7 82 HICKERSON PARK 9150 7.5 6.6 114 9.8 9.2 107 HOLE-IN-ROCK 9150 6.0 6.3 95 9.0 9.2 98 INDIAN CREEK 9425 17.0 28.3 60 14.3 26.1 55 KELLEY R.S. 8180 10.4 17.0 61 12.3 18.9 65 STEEL CREEK PARK 10100 10.8 16.1 67 11.1 12.5 89 ----- ----- Basin wide percent of average 67 73 UPPER BEAR RIVER BUG LAKE 7950 11.1 20.7 54 12.2 19.1 64 HAYDEN FORK 9400 8.4 16.2 52 14.9 18.6 80 KELLEY R.S. 8180 10.4 17.0 61 12.3 18.9 65 LILY LAKE 9050 9.0 13.0 69 11.5 14.4 80 MONTE CRISTO 8960 16.5 29.1 57 17.6 25.1 70 SALT RIVER SUMMIT 7600 7.6 14.2 54 11.3 17.0 66 TRIAL LAKE 9960 13.3 24.7 54 15.8 23.4 68 ----- ----- Basin wide percent of average 57 70 ----------------------------------------------------------------------------- -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 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.