Timely warning from Meteorology to Istanbul: 'After midnight tonight...'

1st Regional Directorate of Meteorology Istanbul Regional Forecast and Early Warning Center issued a new warning.

According to the warning, heavy rain is expected to be effective in the northern parts of Istanbul (Sarıyer, Eyüp, Arnavutköy, Beykoz, Şile) from midnight tonight until 18.00 tomorrow.

Following the heavy rainfall between 13-18 October, which recorded record amounts of precipitation and caused floods in some places, the Istanbul Regional Forecast and Early Warning Center of the 1st Regional Directorate of Meteorology issued a new warning. According to the warning, heavy rain will be effective starting from midnight tonight and will be seen in the northern parts of Istanbul (Sarıyer, Eyüp, Arnavutköy, Beykoz, Şile) until 18.00 tomorrow.

In the warning, it was requested to be careful against possible floods, floods, lightning and transportation disruptions.

"SUDDEN FLOOD, FLOOD, LIGHTNING..."

The warning is as follows:

"According to the latest evaluations; from the first hours of 27.10.2026 (Tuesday), the rains are expected to be heavy (21-50 kg/m2) in Tekirdağ, Istanbul, Kocaeli and Yalova circles; and very heavy (21-75 kg/m2) in the northern parts of Istanbul (Sarıyer, Eyüp, Arnavutköy, Beykoz, Şile); it is expected to lose its effect in the evening hours. Along with heavy rains "It is necessary to be careful and cautious against negativities such as sudden floods, floods, lightning, strong winds during rain and disruptions in transportation."

305 KG OF RAINFALLED PER SQUARE METER IN BEYKOZ

In the heavy rains that lasted for 5 days last week and broke the record of the last 80 years, per square meter; 305 kilograms of rain fell in Beykoz, 294 kilograms in Şile, 238 kilograms in Sarıyer and 220 kilograms in Eyüpsultan. IMM announced that a total of 19 thousand 761 reports were responded to.