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 1 , 2000 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 15.2 15.7 97 16.1 20.1 80 COTTONWOOD CREEK 7600 19.5 18.5 105 19.1 22.3 86 GRANITE CREEK 6770 13.3 15.4 86 14.9 21.1 71 GRASSY LAKE 7265 26.7 29.6 90 25.5 32.5 78 GROS VENTRE SUMMIT 8775 8.9 12.9 69 7.7 14.2 54 LEWIS LAKE DIVIDE 7860 21.7 29.5 74 23.6 33.0 72 PHILLIPS BENCH 8200 19.6 24.2 81 18.9 26.1 72 SALT RIVER SUMMIT 7600 11.7 12.1 97 12.1 15.1 80 SNAKE RIVER STATION 6920 -M 16.2 * -M 22.8 * SPRING CREEK DIVIDE 9000 20.4 23.3 88 19.4 24.1 80 THUMB DIVIDE 7980 12.3 14.3 86 12.4 18.8 66 TOGWOTEE PASS 9580 16.9 20.8 81 17.8 24.7 72 TWO OCEAN PLATEAU 9360 20.6 22.2 93 18.2 27.7 66 WILLOW CREEK 8450 24.6 25.8 95 24.7 28.6 86 ----- ----- Basin wide percent of average 88 75 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 18.0 19.9 90 16.5 15.1 109 BLACK BEAR 7950 29.7 31.7 94 -M 33.7 * CANYON 7940 11.3 10.7 106 12.1 12.1 100 FISHER CREEK 9100 27.8 30.3 92 26.5 30.7 86 MADISON PLATEAU 7750 16.3 20.6 79 17.9 21.8 82 NORTHEAST ENTRANCE 7350 9.2 8.1 114 10.8 10.2 106 PARKER PEAK 9400 15.1 18.0 84 -M 13.1 * SYLVAN LAKE 8420 16.0 18.5 86 17.6 16.3 108 THUMB DIVIDE 7980 12.3 14.3 86 12.4 18.8 66 TWO OCEAN PLATEAU 9360 20.6 22.2 93 18.2 27.7 66 WHISKEY CREEK 6800 12.1 14.5 83 13.7 18.0 76 WHITE MILL 8700 21.2 21.2 100 18.8 23.8 79 WOLVERINE 7650 10.5 10.1 104 9.7 11.0 88 ----- ----- Basin wide percent of average 92 85 WIND RIVER BURROUGHS CREEK 8750 10.5 13.1 80 11.0 14.0 79 COLD SPRINGS 9630 4.8 7.0 69 6.1 8.4 73 DEER PARK 9700 11.1 -M * 13.1 -M * HOBBS PARK 10100 8.2 12.1 68 6.8 11.2 61 LITTLE WARM 9620 8.7 9.2 95 9.6 10.8 89 SOUTH PASS 9040 11.3 14.0 81 10.9 13.8 79 ST. LAWRENCE ALT 8620 2.8 6.2 45 3.7 8.0 46 TOGWOTEE PASS 9580 16.9 20.8 81 17.8 24.7 72 TOWNSEND CREEK 8700 4.4 8.0 55 5.2 9.8 53 ----- ----- Basin wide percent of average 75 71 BIGHORN BASIN BALD MTN. 9375 16.7 17.0 98 15.5 14.1 110 BEAR TRAP MEADOW 7900 4.7 5.9 80 4.3 6.3 68 BLACKWATER 9780 14.7 18.0 82 14.0 15.2 92 BONE SPRINGS DIV 9350 12.5 13.4 93 12.3 11.7 105 EVENING STAR 9200 21.3 22.5 95 21.8 19.0 115 GRAVE SPRINGS 8550 5.9 7.6 78 5.9 7.4 80 KIRWIN 9550 6.1 8.1 75 7.5 8.6 87 MARQUETTE 8760 4.5 6.5 69 4.6 7.1 65 MIDDLE POWDER 7760 8.4 9.7 87 6.2 9.2 67 OWL CREEK 8975 2.6 3.7 70 3.1 4.9 63 POWDER RIVER PASS 9480 7.7 8.8 88 9.1 9.4 97 SHELL CREEK 9580 12.3 12.6 98 11.0 10.6 104 SYLVAN LAKE 8420 16.0 18.5 86 17.6 16.3 108 SYLVAN ROAD 8120 11.8 11.2 105 13.6 13.6 100 TIMBER CREEK 7950 1.4 4.9 29 2.8 5.1 55 YOUNTS PEAK 8350 12.8 14.8 86 10.8 13.9 78 ----- ----- Basin wide percent of average 87 93 SHOSHONE RIVER BLACKWATER 9780 14.7 18.0 82 14.0 15.2 92 EVENING STAR 9200 21.3 22.5 95 21.8 19.0 115 KIRWIN 9550 6.1 8.1 75 7.5 8.6 87 MARQUETTE 8760 4.5 6.5 69 4.6 7.1 65 SYLVAN LAKE 8420 16.0 18.5 86 17.6 16.3 108 SYLVAN ROAD 8120 11.8 11.2 105 13.6 13.6 100 YOUNTS PEAK 8350 12.8 14.8 86 10.8 13.9 78 ----- ----- Basin wide percent of average 88 96 POWDER-TONGUE BEAR TRAP MEADOW 7900 4.7 5.9 80 4.3 6.3 68 BIG GOOSE 7990 6.1 -M * 7.1 -M * BONE SPRINGS DIV 9350 12.5 13.4 93 12.3 11.7 105 BURGESS JUNCTION 7880 9.1 9.7 94 9.3 8.6 108 CLOUD PEAK RESERVOIR 9860 12.0 11.1 108 10.3 10.3 100 DOME LAKE 8880 8.7 11.3 77 9.9 10.4 95 GRAVE SPRINGS 8550 5.9 7.6 78 5.9 7.4 80 HANSEN SAWMILL 8760 4.9 5.7 86 5.6 6.0 93 MIDDLE POWDER 7760 8.4 9.7 87 6.2 9.2 67 POWDER RIVER PASS 9480 7.7 8.8 88 9.1 9.4 97 SUCKER CREEK 8880 9.6 9.7 99 11.8 10.5 112 TIE CREEK 6870 5.6 -M * 7.6 8.2 93 ----- ----- Basin wide percent of average 90 94 BELLE FOURCHE BLIND PARK 6890 5.7 9.1 63 5.8 7.6 76 NORTH RAPID CREEK 6130 5.2 -M * 4.7 -M * WARREN PEAK 6520 9.1 9.1 100 6.5 6.2 105 ----- ----- Basin wide percent of average 81 89 UPPER N. PLATTE RIVER COLUMBINE 9400 25.3 21.0 120 19.7 20.5 96 DIVIDE PEAK 8800 13.5 16.8 80 13.9 18.7 74 ELK RIVER 8700 16.2 16.7 97 14.3 15.5 92 JOE WRIGHT 10120 16.8 17.4 97 19.3 20.2 96 NORTH FRENCH CREEK 10100 21.3 20.4 104 19.1 18.9 101 OLD BATTLE 10000 21.4 26.2 82 24.3 24.5 99 SOUTH BRUSH CREEK 8400 8.8 9.4 94 9.1 12.9 71 TOWER 10500 37.7 37.3 101 25.2 30.0 84 WEBBER SPRINGS 9200 16.9 22.3 76 17.5 20.7 85 WILLOW CREEK PASS 9540 11.0 9.2 120 11.0 9.9 111 ----- ----- Basin wide percent of average 96 90 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 15.2 19.9 76 15.1 15.5 97 CASPER MTN. 7900 12.0 12.3 98 9.0 10.8 83 DEADMAN HILL 10220 9.6 13.5 71 11.1 13.0 85 DEER PARK 9700 11.1 -M * 13.1 -M * LAPRELE CREEK 8320 8.0 8.4 95 8.5 9.1 93 RENO HILL 8400 9.8 10.8 91 9.2 14.6 63 ROACH 9700 12.3 14.0 88 13.8 17.3 80 SAND LAKE 10080 18.5 26.8 69 15.8 16.5 96 SOUTH PASS 9040 11.3 14.0 81 10.9 13.8 79 WINDY PEAK 7840 5.6 6.2 90 7.4 7.1 104 ----- ----- Basin wide percent of average 81 86 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.8 9.9 99 10.3 12.6 82 DIVIDE PEAK 8800 13.5 16.8 80 13.9 18.7 74 OLD BATTLE 10000 21.4 26.2 82 24.3 24.5 99 SANDSTONE RS 8150 12.9 12.2 106 13.3 15.4 86 WHISKEY PARK 8950 20.7 23.6 88 22.3 22.5 99 ----- ----- Basin wide percent of average 88 90 UPPER GREEN RIVER BIG SANDY OPENING 9100 9.7 12.1 80 8.6 14.5 59 BLIND BULL SUM 8650 22.2 24.3 91 15.7 21.0 75 EAST RIM DIVIDE 7930 9.6 12.0 80 9.0 13.6 66 ELKHART PARK G.S. 9400 10.1 11.4 89 9.6 14.3 67 GROS VENTRE SUMMIT 8775 8.9 12.9 69 7.7 14.2 54 KENDALL R.S. 7740 12.5 12.5 100 11.8 13.9 85 LOOMIS PARK 8240 14.6 14.9 98 14.5 16.8 86 NEW FORK LAKE 8340 8.9 9.9 90 7.9 12.9 61 SNIDER BASIN 8250 10.7 12.8 84 10.2 13.6 75 SPRING CREEK DIVIDE 9000 20.4 23.3 88 19.4 24.1 80 TRIPLE PEAK 8500 20.3 21.7 94 20.5 27.9 73 ----- ----- Basin wide percent of average 88 72 LOWER GREEN RIVER HAMS FORK 7840 11.2 10.5 107 7.7 11.9 65 HEWINTA 9500 9.1 8.5 107 9.4 10.2 92 HICKERSON PARK 9150 4.9 5.0 98 5.7 7.2 79 HOLE-IN-ROCK 9150 5.1 4.5 113 5.6 7.2 78 INDIAN CREEK 9425 18.8 22.9 82 16.0 22.5 71 KELLEY R.S. 8180 11.9 14.2 84 12.2 16.8 73 STEEL CREEK PARK 10100 10.4 12.6 83 10.4 10.3 101 ----- ----- Basin wide percent of average 91 78 UPPER BEAR RIVER BUG LAKE 7950 11.9 17.0 70 10.7 15.9 67 HAYDEN FORK 9400 12.5 13.7 91 14.1 15.2 93 KELLEY R.S. 8180 11.9 14.2 84 12.2 16.8 73 LILY LAKE 9050 8.3 10.6 78 10.4 11.7 89 MONTE CRISTO 8960 17.5 23.5 74 15.8 20.8 76 SALT RIVER SUMMIT 7600 11.7 12.1 97 12.1 15.1 80 TRIAL LAKE 9960 18.6 21.2 88 18.1 19.7 92 ----- ----- Basin wide percent of average 82 81 ----------------------------------------------------------------------------- -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.