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MetMalaysia warns of thunderstorms across northern peninsula, Sabah and Sarawak

The Malaysian Meteorological Department has issued a thunderstorm alert for northern states and East Malaysia, with heavy rainfall expected to persist through midday. Affected regions are advised to exercise caution amid potentially hazardous weather conditions.

LSN Malaysia · 18 September 2026

The Malaysian Meteorological Department (MetMalaysia) has activated a thunderstorm warning covering northern peninsular states along with Sabah and Sarawak, effective until noon today. The alert signals the likelihood of severe convective weather bringing intense rainfall and strong winds to the affected areas.

Residents and motorists in the warned regions are urged to take precautionary measures as thunderstorm activity could lead to flash flooding, reduced visibility, and dangerous driving conditions. The warning encompasses multiple states across both Peninsular Malaysia and East Malaysia, reflecting a broad weather system affecting the region.

MetMalaysia typically issues such alerts when atmospheric conditions favour the development of strong thunderstorms capable of producing localised heavy downpours within short periods. The public has been advised to monitor official weather updates and heed all safety advisories from relevant authorities.

This advisory forms part of MetMalaysia's ongoing weather monitoring operations during the monsoon transition period, when convective activity frequently impacts multiple regions across the country.