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Home > Current Affairs News > New heavy rain alert for Istanbul: Flood risk persists as rainfall set to intensify in the evening

New heavy rain alert for Istanbul: Flood risk persists as rainfall set to intensify in the evening

The Meteorological Service has issued warnings for 19 provinces. In Istanbul, the rainfall is expected to intensify again in the evening, with a risk of flash floods and waterlogging in some areas.

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Published: 28.10.2026 09:43 Updated: 28.10.2026 09:43
New heavy rain alert for Istanbul: Flood risk persists as rainfall set to intensify in the evening

Following the heavy rainfall on Tuesday, October 27, which left roads and underpasses submerged in Istanbul, new warnings have been issued one after another. According to meteorological assessments, the rain, which is expected to ease during the day in the city, will intensify again starting from the evening hours.

NTV Meteorology Editor Dilek Çalışkan stated that up to 40 kilograms of rainfall per square meter could fall in some parts of Istanbul, warning that caution should be exercised against flash floods and waterlogging. Temperatures in the city are expected to hover between 15 and 18 degrees throughout the day.

News graphic representing yellow and orange weather alerts in a rainy city.
The Meteorological Service has issued yellow and orange coded warnings for provinces where heavy rainfall is expected.

The Istanbul Metropolitan Municipality Disaster Coordination Center (AKOM) also announced that cold air coming from the Balkans and rainy systems originating from the Central Mediterranean are affecting a large part of Turkey, especially Istanbul. In its assessment, AKOM reported that the rainy weather could last for seven days intermittently and that air temperatures would remain in the 13 to 16-degree band.

According to the report, northerly winds are expected to reach speeds of 40 to 70 kilometers per hour at times. Experts are urging citizens to take precautions against the risk of transport disruptions and waterlogging caused by strong winds.

METEOROLOGICAL WARNING FOR 19 PROVINCES

The General Directorate of Meteorology has issued yellow and orange coded warnings for 19 provinces due to the heavy rainfall expected on Wednesday, October 28. While an orange code was issued for Muğla, Adıyaman, Antalya, Aydın, Batman, Bingöl, Burdur, Denizli, Diyarbakır, Elazığ, Gaziantep, Isparta, İzmir, Kahramanmaraş, Malatya, Mardin, Mersin, Şanlıurfa, and Tunceli were warned with a yellow code.

Very heavy and locally severe rainfall is forecast for the Seydikemer, Köyceğiz, Fethiye, Dalaman, Ortaca, Ula, Marmaris, Datça, and Bodrum districts of Muğla. The Meteorological Service warned citizens against the possibility of flash floods, waterlogging, lightning, strong winds, transport disruptions, and tornadoes in coastal areas.

In the Marmara region, heavy downpours are also expected in the vicinity of Çanakkale and Balıkesir, in addition to Istanbul. It is assessed that rainfall may intensify locally on the Aegean and Mediterranean coasts, and the risk may increase especially around İzmir, Muğla, and Antalya.

On October 29, Republic Day, the air temperature in Istanbul is expected to be around 18 degrees, with intermittent downpours expected during the day. The probability of precipitation is expected to increase especially in the early morning and evening hours, and short-term downpours may continue on Friday, October 30. The rainy weather is expected to lose its effect over the weekend.


News Source: 12punto

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heavy rain Meteorology Muğla Orange code Istanbul Flood risk AKOM Yellow code