The precipitation map of August prepared PS Biju, head scientist with IMD, Thiruvananthapuram.
This week, the seventh anniversary of the mega floods, which claimed almost 500 lives in the state. Although the precipitation this August have been subdued this August, a cursory view of the 123 -year -old rain meteorological department (IMD) in Kerala reveals that many places in Keraral are vulnerable to disasters in August, given the rain pattern throughout the state.
Map drawn PS Biju, Head Scientist with IMD, Thiruvananthapuram, using machine learning techniques and GIS, and precipitation data collected from 110 weather stations in Krala over the period between 1901 and 2023, shows that many places in the state, especially North Keral, idukki and pathanamthita Kerala, idukki and pathanamthita.
What the colors indicate
On the map attached to the story in August witnessed stains marked “Red” at least three strong rain events and two intense rain events were recorded in areas marked in Orange. The yellow areas have witnessed at least one such heavy rainfall, while Green indicates that these areas have not witnessed any such events in August for many years, Mr. Biju said.
Although August became a terrible month for Keralits who were witnessing floods 2018 and 2019, the month receives relatively fewer precipitation compared to June and July, the two slightest southwest monsoon months in Kerala. In 2018, Kerala received good pre -meter showers in May. This was followed by a normal precipitation of 751.5 mm in June and excessive clotting of 857.8 mm in July. Until this time, the cumulative excess of clotting in three months has fed soil and water points.
This was followed by a record clotting of 820.9 mm of precipitation in August, against the monthly diameter of 445 mm, especially in the third week of the month, immersion of a huge tract of areas in the south and in Central Kerala. Also in 2019, August witnessed a record coating of 950.5 mm rain and flooded South Kerala. However, the severity of the flood was relatively fewer compared to 2019, as the precipitation in previous months was insufficient, especially in June (359 mm) and normal in July (574.3 mm).
Flood from 1924
During the “Great Flood of 1924” in Kerala, also known as “Great Flood 99” and another large flood in 1961, there was a disaster in July, unlike 2018 and 2019. This year, IMD has a forecast under normal rainfall for August in 2025 and the rain was suppressed in most parts of the first half, with the exception of a few short -term intense magic.
Published – August 11 2025 9:03
