Weather Update: Depression Intensifies Over Bay of Bengal, Heavy Rainfall Alerts for Tamil Nadu, Puducherry, and Andhra Pradesh

The India Meteorological Department (IMD) has reported significant weather developments across the country, with a depression forming over the Bay of Bengal, cyclonic circulations, and an approaching Western Disturbance. These systems are set to bring varied conditions, including heavy rainfall, thunderstorms, fog, and fluctuating temperatures, impacting several states over the coming days. Here's a detailed forecast and updates to help you prepare for the upcoming weather changes.

Weather Systems at Play

• Low-Pressure Area Intensifies into Depression: As of 25th November 2024, a well-marked low-pressure area over the southeast Bay of Bengal intensified into a depression. It is located at 5.0°N and 85.3°E, approximately 600 km southeast of Trincomalee (Sri Lanka), 880 km southeast of Nagapattinam, and 1050 km south-southeast of Chennai. This system is expected to move northwestwards, intensify into a deep depression within the next 24 hours, and approach the Tamil Nadu-Sri Lanka coasts over the next two days.

• Cyclonic Circulation in Sub-Himalayan West Bengal: A cyclonic circulation persists over sub-Himalayan West Bengal in the lower tropospheric levels.

• Western Disturbance on Horizon: A new Western Disturbance is likely to affect the Western Himalayan Region starting 29th November 2024.

Rainfall and Thunderstorm Alerts

The India Meteorological Department (IMD) has issued rainfall and thunderstorm alerts for various regions as a depression intensifies over the Bay of Bengal and other weather systems remain active. The coming days are expected to bring varying intensities of rainfall, ranging from light to extremely heavy, particularly in southern and eastern states. Thunderstorms and lightning are also likely in isolated areas, accompanied by dense fog conditions in northern regions. Here's a detailed breakdown of the forecast and warnings.

Forecast for Southern and Eastern States

Dense Fog Forecast

• Himachal Pradesh (Nov 26–30): Isolated dense fog during early morning hours.

• Punjab, Haryana, Chandigarh (Nov 28–30) and Uttar Pradesh (Nov 28–Dec 1): Dense fog likely.

Temperature Trends

India experienced varied temperature patterns over the past 24 hours, with fluctuations observed across regions. While some areas recorded above-normal temperatures, indicating warmer-than-usual nights, others witnessed a dip, with cooler-than-average conditions prevailing. The coming days are expected to bring gradual cooling in parts of the northwest and Maharashtra, while the rest of the country will see stable temperature conditions.

Past 24-Hour Observations

• Minimum temperatures remained stable across most regions.

• Above-normal minimum temperatures:

• By 3–5°C: West Rajasthan, Haryana, Chandigarh, Delhi, Bihar.

• By 1–3°C: Uttar Pradesh, East Madhya Pradesh, Gujarat, Tamil Nadu, Puducherry.

• Below-normal minimum temperatures:

• By 3–5°C: West Madhya Pradesh, Gangetic West Bengal, Telangana.

• By 1–3°C: Coastal Karnataka, parts of Maharashtra, Chhattisgarh.

Forecasted Temperature Changes

Delhi/NCR Weather Update

The national capital and its surrounding regions are experiencing a mix of clear skies and persistent foggy conditions. While temperatures remain slightly above normal, smog and light to moderate fog during the mornings and evenings are impacting visibility. Winds from the northwest are providing some relief, but calm conditions at night are contributing to the buildup of pollutants, creating smoggy mornings. Here’s a detailed weather forecast for Delhi/NCR

Past Weather

• Maximum temperature: 27–29°C (2–3°C above normal).

• Minimum temperature: 11–14°C (1–3°C above normal).

• Smog and light fog were present, accompanied by westerly winds at 6 to 12 km/h during the day and calm conditions at night.

• Visibility: Reduced to 800–900 meters at Palam and Safdarjung airports during morning hours.

Forecast for Delhi/NCR (Nov 26–28)

Residents are advised to stay updated with the latest news for real-time weather warnings and advisories to ensure their safety during the coming days.