KUALA LUMPUR, June 14 — The Malaysian Meteorological Department (MetMalaysia) has issued a warning forecasting thunderstorms, heavy rain and strong winds across almost all states and Kuala Lumpur until 9pm today.MetMalaysia, in a warning issued at 4.35pm, said adverse weather conditions are expected in Perlis, Penang, Perak and Kuala Lumpur.Other states expected to be affected are Kedah (Kubang Pasu, Kota Setar, Pokok Sena, Padang Terap, Yan, Pe…