A powerful band of summer storms is sweeping across Thailand, putting 69 provinces under high alert for fierce winds, heavy rainfall, lightning, and hail through Sunday, May 11, according to the Thai Meteorological Department (TMD).
The extreme weather is being fueled by a cold air mass from China clashing with Thailand’s sweltering heat and moisture-rich winds from the Gulf of Thailand and the Andaman Sea. The result: dangerous thunderstorms, gusty winds, and isolated hailstorms hitting provinces from Chiang Rai to Phuket, with Bangkok also in the path.
“We urge everyone to take shelter indoors, avoid tall trees and unstable structures, and closely monitor weather updates,” the department stated.
Homes Damaged, Families Disrupted
In the northeast, families are scrambling to protect their homes and livestock. One resident described how a sudden gust ripped off part of their roof in the middle of lunch. “It was terrifying. The wind sounded like a train,” she said. Crops in low-lying farmland have already been hit by flash floods.
In Bangkok, where up to 80% of the city is expected to experience storms, commuters are reporting flooded sois and fallen branches. Authorities warn of traffic delays and encourage people to stay home where possible.
Gridlock and floodwaters have taken over the city as Bangkok braces for more storms Photo Courtesy มาดามแหม่ม MadamQueen
What’s Causing This?
The TMD says a moderate cold air mass from southern China has pushed into upper Thailand, interacting with intense summer heat and southerly winds carrying moisture. This unstable weather system is triggering:
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Thunderstorms
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Heavy downpours
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Strong winds
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Hail in some northern areas
Areas Most at Risk
Storms are widespread, but especially intense in:
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North: Chiang Mai, Nan, Phayao, Lampang
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Northeast: Ubon Ratchathani, Nakhon Ratchasima, Khon Kaen
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Central: Lopburi, Saraburi, Ayutthaya
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East: Rayong, Chonburi, Trat
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South: Phuket, Surat Thani, Krabi
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Bangkok & Metro Area: Widespread rainfall, flooding risk, high winds
Why It Matters
This storm system is part of a growing trend toward more extreme seasonal weather in Thailand. Meteorologists warn that such patterns could become more frequent as the region continues to face shifting climate conditions.
How to Stay Safe
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Stay indoors during high winds or lightning
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Avoid parking near trees or loose structures
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Unplug electronics during storms
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Monitor official updates via tmd.go.th
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Don’t attempt to drive through flooded roads
No injuries or fatalities have been reported so far, but emergency services remain on standby in several provinces.
