000 WHXX01 KWBC 201810 CHGHUR TROPICAL CYCLONE GUIDANCE MESSAGE NWS NATIONAL HURRICANE CENTER MIAMI FL 1810 UTC THU APR 20 2017 DISCLAIMER...NUMERICAL MODELS ARE SUBJECT TO LARGE ERRORS. PLEASE REFER TO NHC OFFICIAL FORECASTS FOR TROPICAL CYCLONE AND SUBTROPICAL CYCLONE INFORMATION. ATLANTIC OBJECTIVE AIDS FOR TROPICAL CYCLONE ARLENE (AL012017) 20170420 1800 UTC ...00 HRS... ...12 HRS... ...24 HRS... ...36 HRS... 170420 1800 170421 0600 170421 1800 170422 0600 LAT LON LAT LON LAT LON LAT LON BAMS 37.3N 40.7W 39.7N 43.3W 41.6N 46.6W 42.4N 49.4W BAMD 37.3N 40.7W 39.8N 43.0W 41.6N 46.2W 42.3N 48.8W BAMM 37.3N 40.7W 39.8N 43.2W 41.7N 46.5W 42.4N 49.3W LBAR 37.3N 40.7W 40.0N 42.3W 42.0N 45.3W 43.0N 48.2W SHIP 40KTS 54KTS 68KTS 78KTS DSHP 40KTS 54KTS 68KTS 78KTS ...48 HRS... ...72 HRS... ...96 HRS... ..120 HRS... 170422 1800 170423 1800 170424 1800 170425 1800 LAT LON LAT LON LAT LON LAT LON BAMS 42.3N 51.3W 40.7N 51.7W 41.0N 47.9W 41.0N 43.5W BAMD 41.9N 50.4W 36.2N 49.6W 27.2N 42.5W 28.9N 26.1W BAMM 42.1N 51.1W 38.3N 50.8W 31.7N 48.6W 26.5N 48.5W LBAR 42.6N 49.0W 37.6N 46.2W 34.6N 35.5W 36.6N 29.9W SHIP 87KTS 100KTS 106KTS 105KTS DSHP 87KTS 100KTS 106KTS 105KTS ...INITIAL CONDITIONS... LATCUR = 37.3N LONCUR = 40.7W DIRCUR = 350DEG SPDCUR = 15KT LATM12 = 33.8N LONM12 = 39.2W DIRM12 = 358DEG SPDM12 = 14KT LATM24 = 32.2N LONM24 = 40.5W WNDCUR = 40KT RMAXWD = 40NM WNDM12 = 30KT CENPRS = 993MB OUTPRS = 1010MB OUTRAD = 400NM SDEPTH = M RD34NE = 90NM RD34SE = 90NM RD34SW = 0NM RD34NW = 0NM $$ NNNN