# Fresh Weather Systems Over Bay of Bengal Trigger Wind and Rain Alerts Across 20 States

> Active cyclonic circulations and troughs across the Bay of Bengal and northwest India will bring rainfall and wind gusts up to 60 kmph across 20 states between October 4 and 10.

**Type:** article · **Category:** India · **Published:** 2026-10-05 · **Source:** TrendKia
**Canonical:** https://trendkia.com/en/national/bay-of-bengal-men-naya-mausami-tntra-sakriya-20-rajyon-men-teja-andhi-aura-barisha-ki-chetavani-42948 · **Language:** English
**Tags:** IMD Weather, Rain Alert, Cyclonic Circulation, Delhi NCR Weather, Uttar Pradesh Weather, Himachal Pradesh Rain, Uttarakhand Weather

Atmospheric conditions across India are witnessing another significant transition as multiple weather systems gather strength. Following the intense rain spell and flood situations triggered weeks ago across Bihar, Jharkhand, West Bengal, Odisha, Andhra Pradesh, and Uttar Pradesh, atmospheric activity had briefly subdued. However, fresh cyclonic developments over the Bay of Bengal and north-western regions are now set to bring widespread rainfall and stormy winds. The India Meteorological Department has sounded weather alerts for at least 20 states, warning that wind speeds could reach up to 60 kmph in several regions.

## Active Weather Systems Driving Instability Across India
Meteorologists indicate that several synoptic features are simultaneously steering the current weather patterns. A cyclonic circulation persists over Sikkim and its adjoining areas, while a trough extends from north-east Bihar to the north-western Bay of Bengal. In peninsular India, another cyclonic circulation is centered near the Gulf of Mannar and the southern coastal belt of Tamil Nadu, with an associated trough stretching toward the east-central Arabian Sea. Under their collective influence, north-eastern, eastern, southern, central, and north-western states will experience rain, thunder, and gusty winds between October 4 and 10.

## Temperature Drop and Traffic Disruption Warnings for Delhi-NCR
The national capital along with adjoining NCR districts is expected to witness light to scattered showers between October 6 and 10. Day and night temperatures in the region have already recorded a steady decline over recent days. Upcoming spells of rain are expected to pull maximum and minimum temperatures down further, accelerating the transition toward cooler autumn weather. Commuters, however, may face urban challenges as waterlogging and traffic congestion could slow down peak-hour road movement.

## Punjab, Haryana, and Chandigarh to Face 50 kmph Gusts
The plains of north-west India will also experience volatile atmospheric conditions. Punjab, Haryana, and Chandigarh are forecast to see convective activity and sharp thunderstorms between October 7 and 9. Wind speeds in these areas are likely to remain between 30 and 40 kmph, occasionally peaking at 50 kmph during squalls. Sudden downpours are likely to disrupt normal routines and cause localized pooling of water on transit routes.

## Regional Variations in Rain Timelines Across Uttar Pradesh
Uttar Pradesh is slated to experience scattered weather spells spread across its geographical expanse. In eastern Uttar Pradesh, rainfall activity is predicted to span from October 5 to 10. Conversely, western Uttar Pradesh is likely to witness showers between October 6 and 10. Because excessive precipitation had caused severe loss of life and property across parts of the state in previous weeks, local authorities have been placed on watch to manage potential drainage stress.

## Severe Downpours and 60 kmph Squalls in Himalayan States
Mountainous terrains in northern India face a heightened threat of turbulent weather. Himachal Pradesh is projected to receive rainfall accompanied by strong winds from October 5 to 10. Between October 6 and 8, the state may witness lightning strikes and wind speeds ranging from 40 to 50 kmph, gusting up to 60 kmph. In Uttarakhand, widespread precipitation is anticipated between October 5 and 10, with extremely heavy showers likely at isolated pockets between October 5 and 7, prompting advisories for residents and travellers to exercise caution.

## Precipitation Outlook for Jammu, Kashmir, Ladakh, and Bihar
Scattered rain is expected across Jammu and Kashmir, Ladakh, Gilgit-Baltistan, and Muzaffarabad during October 6 to 8 and on October 10, with more widespread activity on October 9. Persistent moisture over high-altitude zones will further drag down daily temperatures. Meanwhile, Bihar is also slated to witness rainfall on October 5, 2026, keeping conditions wet across its eastern and northern divisions.

## What this means for you
Rainfall and gusty winds across 20 states between October 4 and 10 will directly affect transit, temperature trends, and regional safety.

- **Across India:** The upcoming wet spells will drag down maximum and minimum temperatures across northern, eastern, and central states. Residents should prepare for early autumn cooling and take precautions against sudden seasonal temperature swings.
- **In Delhi and Plains:** Light rain between October 6 and 10 across Delhi-NCR, Punjab, and Haryana is likely to cause road waterlogging and traffic snarls. Daily commuters should plan extra travel time and avoid chronically submerged corridors.
- **In Mountain States:** Uttarakhand and Himachal Pradesh face wind gusts up to 60 kmph and heavy downpours between October 5 and 7, raising risks of localized landslides. Travellers and local residents are advised to restrict non-essential movement across hilly routes.
- **For Agriculture and Outdoor Work:** High wind speeds touching 50 to 60 kmph can impact standing crops and outdoor produce. Farmers should secure harvested produce in dry storage areas to minimize moisture damage.

## Why this happened
The sudden shift in weather across multiple regions is driven by the convergence of distinct atmospheric circulation systems and low-pressure troughs.

- **Active Cyclonic Circulations:** Dual cyclonic circulations situated over Sikkim and the Gulf of Mannar are pulling massive moisture into the atmosphere. This has intensified atmospheric instability over eastern and southern India.
- **Extended Atmospheric Troughs:** One trough stretches from north-east Bihar to the north-western Bay of Bengal, while another connects the Gulf of Mannar to the east-central Arabian Sea. These troughs channel moisture-laden clouds across inland plains and coastal belts.
- **System Convergence:** The eastward and northward propagation of these systems, interacting with north-western disturbances, is generating wind gusts up to 60 kmph and localized downpours across 20 states.

## Questions & Answers

### 1. What dates are covered under the weather alert?
The weather alert covers the period from October 4 to October 10 across approximately 20 states.

### 2. When is rainfall expected in Delhi-NCR?
Light to scattered rainfall is forecast for Delhi and adjoining NCR areas between October 6 and October 10.

### 3. How strong will wind gusts be in the Himalayan states?
Himachal Pradesh is expected to see sustained winds of 40 to 50 kmph with gusts reaching up to 60 kmph.

### 4. What is the rain schedule for Uttar Pradesh?
Rain is predicted in eastern Uttar Pradesh from October 5 to 10, and in western Uttar Pradesh from October 6 to 10.

### 5. What is the forecast for Punjab and Haryana?
Punjab, Haryana, and Chandigarh will experience thunderstorms and wind gusts ranging between 30 and 50 kmph from October 7 to 9.

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