Heavy rains with thunderstorms alert in Nabami-Dashami all over Kolkata and Bengal | Check details

As the joyous festivities of Durga Puja reach their crescendo in West Bengal, a sinister shadow looms from the Bay of Bengal, threatening to turn celebrations into a soggy ordeal. The India Meteorological Department (IMD) has issued urgent warnings of a fresh low-pressure system forming over the sea, expected to intensify into a depression by Dashami, the festival's grand finale. This "Asura" rain, as locals are dubbing it—evoking the demons slain by Goddess Durga—could unleash very heavy downpours across the state, particularly in the south, with Kolkata and its suburbs bracing for moderate to intense spells from Navami onwards.

Thunderstorms, frequent lightning, and gusty winds up to 40-50 kmph are also on the cards, prompting the IMD to hoist orange alerts for very heavy rainfall in key districts like Hooghly, Purba and Paschim Medinipur, and South 24 Parganas. For devotees, this means potential disruptions to pandal-hopping, cultural events, and the iconic idol immersions, underscoring the unpredictable wrath of nature clashing with human revelry. With the system veering towards the Odisha-Andhra coast, Bengal's eastern flanks could bear the brunt, but the ripple effects promise a statewide drenching that might swell rivers and flood low-lying areas.

The low-pressure area's genesis traces back to lingering monsoon dynamics, but its timing couldn't be more dramatic. Forming roughly 200 km southeast of Paradip, it's set to deepen rapidly, pulling moisture-laden winds from the Arabian Sea and channeling them straight into Bengal's lap. Navami, traditionally a day of vibrant dances and feasts, will see light to moderate showers easing into the evening, but by Dashami, the stakes skyrocket with forecasts of over 115 mm of rain in isolated pockets—enough to transform bustling streets into rivulets. The IMD's color-coded alerts paint a vivid picture: orange for the most vulnerable coastal strips, signaling a high risk of flash floods and waterlogging, while yellow warnings blanket the rest of south Bengal and even stretch to the northern hills. Districts like Howrah, North 24 Parganas, Nadia, Birbhum, and Murshidabad are explicitly named in the bulletins, with residents urged to secure loose objects and avoid open fields amid lightning threats. This isn't just weather—it's a test of resilience for a festival that draws millions, blending spirituality with the raw forces of the monsoon's tail end.

In Kolkata, the city's throbbing heart of Puja fervor, the mercury is expected to hover around 28-30°C during the day, but relentless humidity coupled with intermittent rains could make it feel oppressively muggy. Urban infrastructure, already strained by the influx of visitors, might buckle under the deluge, with past experiences of knee-deep water in several areas serving as grim reminders.

The IMD advises pandal committees to prepare backup plans for outdoor performances, including LED screens for indoor viewing, while traffic authorities warn of diversions around immersion routes. Beyond the immediate chaos, this system highlights broader climate concerns—erratic monsoons growing fiercer due to warming seas, a pattern that's upended Puja schedules in recent years. Yet, in true Bengali spirit, there's an undercurrent of defiance; artisans are racing to weatherproof idols, and families are stocking up on raincoats, determined not to let the skies steal their slice of joy.

Venturing further afield, the alerts cascade across the state like a monsoon chain reaction. In the southern districts, Hooghly's riverine banks and the dual Medinipurs' agrarian heartlands face the orange peril, where very heavy rains could trigger landslides in hilly Jhargram and inundate farmlands in Bankura. Northward, yellow signals flicker over Purba Bardhaman, Birbhum, and Nadia, promising heavy spells that might disrupt rail and road links vital for Puja pilgrims. Even the northern Bengal enclaves aren't spared—Darjeeling's misty slopes, Kalimpong's trails, and the tea gardens of Jalpaiguri and Alipurduar could see yellow-flagged downpours, turning scenic drives into slippery hazards. The IMD's vigilance extends to wind warnings, with squalls potentially felling billboards and power lines, echoing last year's outages that dimmed pandal lights mid-revelry. For fishermen and coastal communities, a separate red flag waves: steer clear of the sea until the system passes, as waves could surge to 3-4 meters.

As Dashami dawns with its bittersweet immersion processions, the depression's core is projected to skirt Odisha's shores before grazing Andhra, but not without lashing Bengal's exposed coastline. This trajectory spares the deepest fury for neighboring states, yet the feeder bands ensure no corner of the delta escapes unscathed. Environmentalists point to this as a clarion call for sustainable festivities—biodegradable idols and eco-pandal designs gaining traction amid the gloom.

Meanwhile, the state administration gears up: disaster response teams on standby, drainage crews on overtime, and helplines buzzing with safety tips. From the bustling Howrah Bridge to the serene Sunderbans fringes, the alert is clear—embrace the rain as part of the ritual, but with eyes wide open to its perils.

In the end, this Puja's brush with the "Asura" storm might etch itself into folklore, a tale of devotion weathering the tempest. As Bengalis light diyas against the downpour, the resilience that defines the festival shines through—rain or shine, the goddess's victory march endures. With the system expected to weaken post-Dashami, clearer skies beckon for Vijaya Dashami's triumphs, but for now, umbrellas are the unsung heroes of the hour