GLOBAL MODELS INDICATE THAT THE INITIAL PHASE OF WEAKENING WILL ALSO COINCIDE WITH A DECREASING 200MB DIVERGENCE AS THE SYSTEM MOVES SLIGHTLY AWAY FROM THE ENHANCED OUTFLOW CHANNEL PROVIDED BY THE UPPER-LEVEL TROUGH. AS A RESULT, THE SYSTEM HAS EITHER ALREADY REACHED PEAK INTENSITY OR WILL REACH 155-160 KTS WITHIN THE NEXT 6 HOURS. AFTERWARDS, A STEADY, BUT VERY SLOW WEAKENING IS EXPECTED TO INITIATE, WITH MAXIMUM INTENSITY OF 135-140 KTS EXPECTED DURING CPA TO THE NORTHERN MARIANAS.DUE TO THE EXPANSIVE WIND FIELD,GALE-FORCE WINDS ARE EXPECTED TO BEGIN IMPACTING THE MARIANA ISLANDS SHORTLY AROUND TAU 24. 全球模型表明,随着系统略微远离高空槽提供的增强流出通道,初始减弱阶段将与200百帕辐散的减少同时发生。因此,系统要么已经达到峰值强度,要么将在未来6小时内达到155-160节。之后,预计将开始稳定但非常缓慢的减弱,在最接近北马里亚纳群岛时,预计最大强度为135-140节。由于风场广阔,预计在24时效左右烈风将开始影响马里亚纳群岛。