000 FTUS43 KGRB 201740 TAFGRB TAF KGRB 201740Z 2018/2118 29012G20KT P6SM BKN045 FM202000 28008G15KT P6SM BKN060 FM210300 27006KT P6SM SCT250 FM211200 28009G16KT P6SM SKC=