Monsoon Mounts Late Surge as Deepening Depression Over Bay of Bengal Triggers Storm Alerts Across Multiple StatesWest Bengal
22 Sept 2026, 11:06 am (1 hour ago)· 1

Monsoon Mounts Late Surge as Deepening Depression Over Bay of Bengal Triggers Storm Alerts Across Multiple States

Even as withdrawal begins across northwest India, a low-pressure area over the Bay of Bengal is set to intensify into a deep depression, prompting severe rain, lightning, and wind warnings across several regions.

Even as the south-west monsoon embarks on its seasonal retreat from parts of the country, late-stage atmospheric disruptions are sparking a fresh spell of turbulent weather across multiple regions. The weather department has sounded comprehensive alerts for Tuesday, September 22, warning of widespread rainfall, thunderstorms, and lightning strikes across various states. Atmospheric instability is expected to generate squally winds gusting between 60 and 80 kilometres per hour in vulnerable pockets, threatening localized disruption to surface transport and power infrastructure.

Bay of Bengal System Set to Deepen Into Deep Depression

A primary driver of this renewed surge is an active low-pressure area situated over the Bay of Bengal. Meteorological evaluations indicate that this system will steadily strengthen over the next 48 hours, progressing into a depression before intensifying into a deep depression. Forecasters project that the intensifying weather system will approach the coastline between northern Andhra Pradesh and southern Odisha by the morning of September 23. Its most powerful punch is anticipated on September 24, with Odisha and Chhattisgarh facing the brunt of very heavy to extremely heavy rainfall spells.

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Eastern Uttar Pradesh Braced for Showers Before Broader Spread

In Uttar Pradesh, the immediate weather activity remains concentrated over the eastern districts. Light showers are expected across Gorakhpur, Deoria, Kushinagar, Varanasi, Prayagraj, Mirzapur, and Sonbhadra, providing periodic cloud cover. Conversely, the state capital Lucknow is likely to witness warm, muggy conditions, with afternoon mercury readings expected to hover around 35 degrees Celsius. However, moisture inflow is slated to expand the precipitation envelope significantly across the state starting September 24.

Jharkhand Under Prolonged Rain Warning Through September 26

Severe weather conditions have been flagged for Jharkhand, where several districts are on alert for heavy showers accompanied by frequent cloud bursts and intense lightning strikes. Critical industrial and residential corridors including Ranchi, Bokaro, Dhanbad, Deoghar, Giridih, and Hazaribagh remain under caution. Given the strength of the incoming low-pressure system and surrounding moisture channels, this spell of wet weather across the state is projected to persist until September 26.

Sunny Skies for Delhi as Withdrawal Commences in Northwest Plains

In contrast to the rain-hit eastern states, the national capital Delhi is projected to enjoy a dry and clear interlude. Forecasters anticipate largely open skies over Delhi between September 22 and 24, with maximum daytime temperatures ranging between 34 and 36 degrees Celsius. Simultaneously, the formal withdrawal of the monsoon has initiated across sectors of Rajasthan, Haryana, and Punjab. Over the coming days, this retreat line is expected to engulf Delhi, Jammu and Kashmir, Himachal Pradesh, Uttarakhand, and peripheral sectors of Uttar Pradesh.

Uttarakhand Hills on Alert for Landslides and Highway Blockages

Travellers and residents venturing into the mountainous terrain of Uttarakhand have been urged to exercise utmost vigilance. The state is forecast to experience intermittent showers between September 22 and 25, followed by a noticeable intensification on September 26. In the upper reaches and along fragile slopes, heavy precipitation brings a severe threat of landslides, mudslides, and falling boulders, presenting significant hazards on key arterial highways.

Questions & Answers

When is the Bay of Bengal system expected to reach the coastline?
The system is projected to approach the coast near northern Andhra Pradesh and southern Odisha by the morning of September 23.
Which date is expected to see the peak impact of this weather system?
The maximum impact is anticipated on September 24, bringing very heavy downpours to Odisha and Chhattisgarh.
What wind speeds have been forecast during these storm alerts?
Squally winds reaching speeds between 60 and 80 kilometres per hour are predicted in affected areas.
Which districts in Uttar Pradesh are expected to receive rainfall on September 22?
Light showers are forecast in eastern districts including Gorakhpur, Deoria, Kushinagar, Varanasi, Prayagraj, Mirzapur, and Sonbhadra.
What is the weather outlook for Delhi between September 22 and 24?
Delhi will experience largely clear skies without rainfall, with daytime temperatures hovering between 34 and 36 degrees Celsius.
When is rainfall expected to intensify over Uttarakhand?
While rain will occur between September 22 and 25, precipitation is forecast to intensify significantly on September 25 and 26.
From which states has the monsoon retreat already begun?
Monsoon withdrawal has commenced from sections of Rajasthan, Haryana, and Punjab.
How long will the wet spell persist in Jharkhand?
Rainfall accompanied by thunderstorms is expected to continue across Jharkhand districts until September 26.

Comments 4

Arjun Mehta@arjun-mehta·17m ago

This late monsoon surge just ahead of its full retreat always tends to disrupt ground activities and administrative preparations.

Ravikash Gupta@ravikash·17m ago

Hey Arjun, not sure about the elections, but I got stuck in a cyclone in Odisha last year just like this, when everything came to a halt.

Rohan Verma@rohan-verma·39m ago

Lucknow will see 35-degree heat and humidity, this lingering monsoon mugginess is so annoying.

Karan Malhotra@karan-malhotra·38m ago

Rohan, Lucknow's humidity is brutal. I remember sweating through my clothes the last time I was there reporting on a ground assignment.

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