Did the Weather Department Just Issue an Orange Alert for TN's Ghat Districts?
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Synopsis
Chennai's Regional Meteorological Centre has issued an orange alert for the Ghat districts of Coimbatore and the Nilgiris, predicting heavy rainfall from June 13 to 15. With the southwest monsoon reviving, Tamil Nadu prepares for significant weather changes, promising relief from the summer heat.
Key Takeaways
- Orange alert issued for heavy rainfall in Ghat areas of Coimbatore and Nilgiris.
- Rainfall amounts could reach up to 20.4 cm.
- Relief from summer heat expected as monsoon revives.
- Traffic disruptions anticipated due to waterlogging.
- Thunderstorms with gusty winds expected in isolated areas.
Chennai, June 10 (NationPress) The Regional Meteorological Centre (RMC) in Chennai has raised an orange alert for the Ghat regions of Coimbatore and the Nilgiris from June 13 to 15, predicting significant rainfall of up to 20.4 cm during this period.
This alert coincides with the onset of the southwest monsoon in Tamil Nadu, following a prolonged spell of intense summer heat.
An orange alert is issued when heavy rainfall is expected, usually exceeding 115.6 mm and reaching 204.4 mm within a span of 24 hours, indicating an increased risk of flooding.
After several days of soaring temperatures, areas in the north interior of Tamil Nadu and Chennai have experienced a welcome respite with unexpected afternoon showers. Locations such as Mylapore, Chintadripet, Anna Nagar, Adyar, and Chepauk recorded sudden rainfall starting around 2:30 p.m. on Monday, resulting in a marked temperature drop. The maximum temperature fell from 38 degrees Celsius to 30 degrees Celsius by 4:00 p.m., aided by overcast conditions and cooler winds.
However, the rain also led to temporary traffic disruptions, with waterlogging observed on major routes, including Jawaharlal Nehru Salai.
Weather stations at Nungambakkam and Puzhal noted 2 cm of rainfall by 5:30 p.m. on Monday. The RMC has predicted ongoing wet weather across Tamil Nadu and Puducherry for the remainder of the week.
Thunderstorms, accompanied by gusty winds reaching speeds of 30-40 kmph, are anticipated in isolated areas.
On Tuesday, isolated heavy rainfall is expected in seven districts, including Erode, Vellore, and Ranipet. Rain intensity is forecasted to increase from Wednesday, with 15 districts—including the delta region, interior Tamil Nadu, and the Western Ghats—likely to experience heavier downpours.
B. Amudha, Head (Additional In-charge) of RMC Chennai, attributed the current weather pattern to the formation of an east-west trough in the upper atmosphere. This trough is facilitating the monsoonal flow, and rainfall is likely to intensify in northern districts before moving towards the Ghat regions.
The prevailing weather system is expected to lower daytime temperatures by approximately 2 degrees across various regions of the state. The official also confirmed that the southwest monsoon is gradually reviving over Tamil Nadu, similar to recent developments in Karnataka. Chennai and its suburbs can anticipate light to moderate showers continuing through Tuesday, offering ongoing relief from the oppressive summer heat.
Point of View
The recent weather developments in Tamil Nadu highlight the dynamic nature of our climate. The revival of the southwest monsoon marks a significant shift from the extreme heat experienced earlier. As we navigate these changes, it’s crucial for citizens to stay informed and prepared, ensuring safety amidst the anticipated heavy rainfall.
NationPress
11/06/2025
Frequently Asked Questions
What is an orange alert?
An orange alert is issued when significant rainfall is anticipated, typically exceeding 115.6 mm and up to 204.4 mm within 24 hours, indicating a heightened risk of flooding.
When will the heavy rainfall occur?
Heavy rainfall is forecasted to take place from June 13 to 15 in the Ghat areas of Coimbatore and the Nilgiris.
What impact might the rain have on local traffic?
The rainfall may lead to temporary traffic disruptions and waterlogging in low-lying areas and major routes.
How is the monsoon affecting temperatures?
The prevailing weather system is expected to lower daytime temperatures by about 2 degrees Celsius in several parts of Tamil Nadu.
Which districts are likely to experience heavy rainfall?
Isolated heavy rainfall is likely in seven districts, including Erode, Vellore, and Ranipet, with increased intensity expected in 15 districts from Wednesday.
