BANGKOK, THAILAND — FLOODWATER LINGERS AFTER 320 MM, 1.7 MILLION AFFECTED

On the board · September 28, 2026 →

EASING · September 28, 2026 · NO. 0928

THE WATER

About 320 mm of rain in two to three days has left 93 roads flooded in Bangkok and more than 80,000 residents unable to leave home, with five canals critical. Across 27 provinces, 1.7 million people are affected and 8 have died; the rain eases today, but draining could take up to a week. (Handled with care.)

THE RECORD

22 turning points on record since Aug 21 — the 8 most recent shown.

Sep 27active → peak

Sep 26↑ moved up the board

Sep 25easing → active

Sep 24active → easing

Sep 23▽ eased

Sep 22▽ eased

Sep 21▽ eased

Sep 20▽ slipped down the board

WHO IT TOUCHES

Public safetyA hurricane landfall in Baja California Sur and Sonora, 1.7 million flood-affected in Thailand, and four days of flood risk in the US Southwest.

Supply chainsBangkok's flooded roads, Mexico's north-west corridors under a hurricane, and a Rhine gauge still low.

AgricultureSinaloa and Sonora farmland under Polo's rain, flood risk on the southern Plains, and Thai rice provinces under water.

Health systemsFlood-affected communities in Thailand, Chile, India and Nepal, and extreme heat in Rio de Janeiro.

Live events & venuesHolidays declared in Bangkok, school closures across Baja California Sur, and a wet week for Southwest venues.

CONNECTED

One sea, two shores — Bangkok drains after 320 mm while a new depression off Myanmar, where floods have killed 8 in Tanintharyi, turns toward the Bay of Bengal..

WHAT THEY'RE SAYING

Heavy rainfall near 300 millimeters triggered widespread flooding that turned Bangkok streets into a disaster zone, with cars reported floating in multiple districts. Observers noted that eastern sections of the city remained inundated by lingering canal water well after the main rain event, leaving communities isolated. Assessments following the deluge indicate roughly 1.7 million people have been affected by the persistent flood conditions.

RA@rayvaheySep 27Eastern Bangkok remains a floodway with lingering canal water after heavy rain, affecting local communities.
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JE@jetzt_rausSep 26Bangkok declared a disaster zone across all districts after about 300 mm of rain with cars floating on streets.
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