Warning: Third Summer Storm Alert Issued, Check Provinces to Prepare for Heavy Rain and Strong Winds Affecting Up to 13 Mar 2026

The Meteorological Department has issued the third summer storm bulletin, listing provinces to prepare for thunderstorms and strong gusty winds, with effects lasting until 13 March 2026.

11 March 2026 GMT+7 Meteorological Department Announcement regarding Summer storm in upper Thailand (effective until 13 March 2026), bulletin number 3.

It states that a summer storm will occur in upper Thailand, beginning in the northern region first. The central region, western part of the northeastern region, eastern region, including Bangkok and its metropolitan area, will be affected next.

The storm will feature thunderstorms, strong gusty winds, hail in some areas, heavy rain in places, and occasional lightning. This is due to westerly wind currents from Myanmar moving over the north, combined with a moderate high-pressure area or cool air mass from China moving over the northeast, east, and South China Sea, while upper Thailand experiences hot weather.

Residents in the affected areas are advised to beware of dangers from the summer storm by avoiding open spaces, large trees, weak structures, and billboards. Farmers should reinforce fruit trees and prepare to protect crops and livestock from damage. Additionally, people should take care of their health during this changing weather.

Provinces expected to be affected by thunderstorms and strong gusty winds:

11 March 2026 GMT+7

High risk

• Northern region: Mae Hong Son, Chiang Mai, and Chiang Rai provinces.

Moderate risk

• Northern region: Tak, Kamphaeng Phet, Sukhothai, Lamphun, Lampang, Phayao, Nan, Phrae, Uttaradit, Phitsanulok provinces.
• Northeastern region: Loei, Chaiyaphum, and Nong Bua Lam Phu provinces.

12 March 2026 GMT+7

High risk

• Northern region: Chiang Mai, Chiang Rai, Lamphun, Lampang, Phayao, Nan, Phrae, Uttaradit, Phitsanulok, Phetchabun, Tak, and Sukhothai provinces.
• Northeastern region: Loei province.
• Central region: Nakhon Sawan, Lopburi, Saraburi, Kanchanaburi, Ratchaburi, Nakhon Pathom, Samut Sakhon, including Bangkok and metropolitan area.
• Eastern region: Nakhon Nayok, Prachinburi, Sa Kaeo, Chachoengsao, Chonburi, and Rayong provinces.

Moderate risk

• Northern region: Mae Hong Son, Kamphaeng Phet, and Phichit provinces.
• Northeastern region: Nong Bua Lam Phu, Udon Thani, Khon Kaen, Nong Khai, Bueng Kan, Chaiyaphum, Nakhon Ratchasima, and Buriram provinces.
• Central region: Uthai Thani, Chai Nat, Sing Buri, Ang Thong, Ayutthaya, Suphanburi, and Samut Songkhram provinces.
• Eastern region: Chanthaburi and Trat provinces.

13 March 2026 GMT+7

Moderate risk

• Northern region: Mae Hong Son, Chiang Mai, Chiang Rai, Lamphun, Lampang, Phayao, Nan, and Tak provinces.
• Central region: Kanchanaburi, Ratchaburi, Nakhon Pathom, Samut Sakhon, Samut Songkhram provinces, including Bangkok and metropolitan area.
• Eastern region: Nakhon Nayok, Prachinburi, Chachoengsao, Chonburi, and Rayong provinces.

The public is urged to follow announcements from the Meteorological Department and can access information on their website.http://www.tmd.go.thOr by calling 0-2399-4012-13 and 1182, available 24 hours.

Announcement issued on 11 March 2026 GMT+7 at 11:00 a.m.
The Meteorological Department will issue the next bulletin on 12 March 2026 GMT+7 at 11:00 a.m.

Information from the Meteorological Department.