WWPN20 KNES 181524 SATELLITE WEATHER BULLETIN WEST PACIFIC OCEAN MTSAT IRNIGHT . SEPTEMBER 18 2007 1433Z . 26.5N 121.0E T4.5/5.5/W1.5/24HRS WIPHA(13W) . PAST POSITIONS...24.9N 123.2E 18/0233Z VIS/IRDAY 23.7N 125.0E 17/1433Z IRNIGHT . REMARKS...WIPHA IS WEAKENING RAPIDLY. EMBEDDED IN MG FOR A DT OF 4.0. MET IS 5.0. PT IS 4.5. UNREP FT OF 4.5 BASED ON CONSTRAINTS. . POSITION ACCURATE WITHIN 40 NMI. . THE NEXT BULLETIN WILL BE ISSUED BY 18/2200Z. . EFFECTIVE 0000 UTC 01 DECEMBER 2007 THE FORMAT OF THIS BULLETIN WILL CHANGE TO CONFORM WITH THAT FOUND IN TPPN10 PGTW. FOR DETAILS SEE http://www.ssd.noaa.gov/PS/TROP/newformat.html ALL LOWER CASE LETTERS EXCEPT PS/TROP. . FOR AREAL DISPLAY OF RAINFALL POTENTIAL SEE OUR WEB SITE AT HTTP://WWW.SSD.NOAA.GOV/PS/TROP/TRAP.HTML ALL LOWER CASE LETTERS EXCEPT PS/TROP . BANKS . NNNN