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Heavy Rainfall Forecast: TN & Kerala Brace for Downpours

Heavy Rainfall Forecast: TN & Kerala Brace for Downpours

Important:

  • Isolated heavy rainfall expected over Tamil Nadu from 7th to 9th November 2025.
  • Heavy showers likely in Kerala and Mahe from 8th to 10th November 2025.
  • Night temperatures below 10°C in parts of Rajasthan, Punjab, Jammu, Himachal Pradesh, and Uttarakhand.
  • Minimum temperatures 2-5°C below normal in Haryana, Chandigarh, Delhi, Rajasthan, north Madhya Pradesh, and north Maharashtra.
  • Below-normal night temperatures to continue in northwest and central plains for next 6-7 days.
  • Heavy rain (7-11 cm) recorded at isolated places in South Interior Karnataka and Tamil Nadu in past 24 hours.
  • Four upper air cyclonic circulations active over Bay of Bengal, north Haryana, Assam, and South Interior Karnataka.
  • Light to moderate rain with thunderstorms at many places in Tamil Nadu (7-9 Nov) and Kerala (8-10 Nov).
  • Delhi to see mainly clear skies with morning smog/shallow fog from 8th to 10th November.
  • Minimum temperatures in Delhi likely to drop to 9-11°C by 10th November.

Several regions in southern India are preparing for spells of intense rain over the coming days, while northern parts continue to experience unusually chilly nights. Weather patterns indicate active systems that will bring moisture-laden clouds to coastal and interior areas, affecting daily life and agriculture.

Heavy Rainfall Forecast for Southern States

Weather observations show that multiple low-pressure systems are influencing conditions across the peninsula. Residents in Tamil Nadu can expect scattered but strong showers between 7th and 9th November, with some areas receiving more than 6 cm of rain in a short span. Similar activity will shift towards Kerala and the adjoining Mahe region from 8th to 10th November.

In the last day alone, certain pockets in South Interior Karnataka and Tamil Nadu witnessed downpours measuring 7 to 11 cm. Locations such as Malur in Kolar district recorded 8 cm, while Uthukottai in Tiruvallur district saw 10 cm. Other stations like Vembakkam, Red Hills, Kalavai, and Avadi reported 7 cm each. These events highlight the potential for localised flooding in low-lying zones.

 

Thunderstorms are likely to accompany the rain at several places, raising concerns for farmers and urban dwellers alike. Authorities advise keeping drainage channels clear to prevent waterlogging in fields growing rice, sugarcane, pulses, and vegetables.

Systems Driving the Weather

Experts point to four distinct cyclonic circulations in the lower atmosphere. One persists over the east-central Bay of Bengal extending towards the northeast, another hovers near north Haryana, a third affects Assam and nearby areas, and the fourth lingers over South Interior Karnataka. These rotations are drawing in humid air, leading to cloud formation and precipitation over the southern states.

Apart from the heavy spells, light to moderate rain with occasional lightning is probable at most locations in the affected periods. The rest of the country should remain largely dry throughout the week.

Cold Conditions Grip Northern India

Nights have turned markedly cooler across northwest India. Several stations in Rajasthan, Punjab, Jammu, Himachal Pradesh, and Uttarakhand logged mercury below 10°C. Departures from normal range between 2°C and 5°C in Haryana, Chandigarh, Delhi, large parts of Rajasthan, northern Madhya Pradesh, and northern Maharashtra.

This trend is set to persist, with plains in the northwest and adjacent central regions likely to record night readings 2 to 5°C lower than usual for the next six to seven days. A gradual dip of 2 to 3°C is anticipated over central and western India in the first two days, followed by stable conditions. Eastern parts may see a sharper fall of 3 to 4°C over the initial three days before levelling off.

Delhi Weather Outlook

The national capital recorded minimum temperatures between 11°C and 12°C in the past day, which were 2 to 4°C below average. Daytime highs hovered around 25 to 27°C, down by 3 to 5°C from normal. Skies stayed mostly clear with northwesterly winds reaching 18 kmph.

Looking ahead, 7th November will feature clear skies turning hazy after sunset, with highs near 25 to 27°C and winds up to 15 kmph in the afternoon. From 8th onwards, mornings will bring smog or shallow fog. Temperatures are projected to range from 26 to 28°C during the day and 10 to 12°C at night on 8th and 9th, dropping further to 27 to 29°C maximum and 9 to 11°C minimum by 10th November. Minimums will remain 2 to 4°C below normal, while daytime values approach seasonal levels by the weekend.

Winds will generally blow from the northwest, starting light in the morning and picking up to 15 kmph in the afternoon before calming in the evening.

Advisories for Farmers and Fisherfolk

Agricultural experts recommend harvesting ripe paddy and groundnut only when skies are clear and storing produce in elevated, dry spots. Fields with standing crops like maize, cotton, black gram, and vegetables need proper outlets to remove excess water. Plantations of coconut, banana, and black pepper also require drainage to prevent root damage.

Livestock should stay indoors during heavy showers, with adequate nutritious feed provided. Fodder stocks must be kept in secure, moisture-free areas. For fish farmers, ponds need outlets fitted with nets to manage overflow and stop fish from escaping.

In case of gusty winds accompanying thunderstorms, horticultural crops and young fruit plants benefit from stakes or props to avoid toppling. Vegetables too may need support structures.

Urban areas and hilly terrains under heavy rain alerts should prepare for possible disruptions. Orange and red colour warnings signal the need for immediate precautions as forecast confidence reduces with time.

The overall pattern underscores the contrast between a wet south and a chilly north, reminding citizens to stay updated through reliable channels for location-specific guidance.