000 FTUS43 KGRB 160520 TAFGRB TAF KGRB 160520Z 1606/1706 21008KT P6SM BKN120 FM160900 23012G23KT P6SM BKN100 WS020/26040KT FM161400 27014G25KT P6SM SCT050 BKN080 FM161700 29017G27KT P6SM BKN050 FM170100 30014G22KT P6SM BKN050=