Istanbul recorded its highest rainfall since meteorological measurements began in 1942, with authorities rescuing 2,722 people after torrential downpours triggered widespread flooding across the city.

In a statement, the Istanbul Governor's Office said 261 millimetres of rainfall per square metre were recorded in the Beykoz district, marking the highest precipitation level ever measured in the city since the Turkish State Meteorological Service began keeping records in 1942. Several other districts also received rainfall totals close to that level.

Massive emergency response

The Governor's Office said emergency operations have been coordinated by provincial authorities since the onset of the storm.

Under the Türkiye Disaster Response Plan (TAMP), all 19 disaster response groups were mobilised. Personnel from AFAD, the Istanbul Metropolitan Municipality, district municipalities, the 1st Army Command, the police, the gendarmerie, the Coast Guard, the Turkish Red Crescent and other public institutions participated in the response.

A total of 46,597 personnel, including 8,597 search-and-rescue workers and 38,000 support staff, were deployed across the city.

Authorities said 2,722 residents were rescued using boats and other emergency vehicles, while small-scale rescue operations continued at 14 locations.

People requiring temporary shelter were accommodated in safe locations under the coordination of district governorates, while the Turkish Red Crescent provided food assistance.

Flights disrupted and roads closed

Severe weather also disrupted air traffic in Istanbul.

The Governor's Office said 51 flights scheduled to land at Istanbul Airport were diverted to alternative airports, while 19 flights—including seven arrivals and 12 departures—were cancelled. Airlines were instructed to provide accommodation and other assistance to affected passengers.

Across the city, 16 roads remained closed to traffic, although officials said they were not major arterial routes and alternative roads were available.

Schools suspended, damage assessments underway

Face-to-face education at all public and private schools across Istanbul was suspended for Friday, 16 October, due to the severe weather.

Authorities said inspections were continuing to ensure school buildings were safe before classes resume, with schools expected to be ready for reopening on Monday.

The Governor's Office also announced administrative leave for public employees who are disabled, pregnant, veterans, disabled veterans or women with children under the age of eight. The measure does not apply to personnel working in healthcare, security or emergency response services, while mothers of children under eight with disabilities are exempt regardless of their profession.

Universities will decide independently whether to suspend classes.

Meanwhile, the ban on motorcycles using public roads remains in force until weather and traffic conditions improve.

Officials said damage assessment teams have begun documenting losses across the city, with a comprehensive assessment expected to be completed by Monday. The government is expected to announce compensation measures once the assessment process is finalised.(ILKHA)