# Dhanteras Rain Threat for Bengaluru as IMD Issues Thunderstorm Warning and Traffic Advisory > Weakened Cyclone Murasu triggers rain and lightning alerts across South Interior Karnataka, raising concerns of heavy evening traffic during Dhanteras shopping in Bengaluru. **Type:** article · **Category:** India · **Published:** 2026-11-07 · **Source:** TrendKia **Canonical:** https://trendkia.com/en/national/bengaluru-men-dhanteras-ki-kharidari-para-barisha-ka-saya-mausama-vibhaga-ne-jari-kiya-andhi-tuphana-ka-alarta-57504 · **Language:** English **Tags:** Bengaluru Weather, IMD Alert, Dhanteras Rain, Karnataka Weather, Bengaluru Traffic, Diwali Forecast A cloud cover over Bengaluru on Friday, 6 November, threatens to disrupt peak Dhanteras festivities as the India Meteorological Department (IMD) warned of thunderstorms, lightning, and squalls across South Interior Karnataka for today and tomorrow, 7 November. The timing of the rainfall comes at a challenging hour when shoppers throng jewellery stores, traditional markets, and temples across the city. Unscheduled downpours during these peak evening hours could quickly slow vehicular movement to a crawl across major arterial roads. ## IMD Alert and Regional Weather Forecast According to the latest bulletin issued by the IMD, the warning for South Interior Karnataka remains active through Friday and Saturday, after which conditions are expected to normalize with no warnings in place from Sunday, 8 November, through Thursday, 12 November. Adding details to the regional outlook, the Karnataka State Natural Disaster Monitoring Centre (KSNDMC) indicated that rain across the South Interior, Coastal, and Malnad belts will likely remain scattered to moderate, accompanied by strong winds. Isolated pockets may experience heavy precipitation, while early mornings are slated to stay cold and foggy across several parts of the state. ## Cyclonic Influence and City Weather Profile The primary atmospheric driver behind this spell is Cyclone Murasu, which has gradually weakened near the Bay of Bengal. The IMD had previously projected intermittent light-to-moderate showers extending from 6 November to 10 November. For Bengaluru specifically, the localized precipitation probability stands at approximately 50 percent for Friday, with daytime temperatures hovering around a maximum of 26°C and dipping to a low of 20°C. Meteorologists note that while the showers may be short-lived and patchy rather than widespread across every neighborhood, sudden gusty winds and severe lightning could strike with minimal advance notice. ## Traffic Bottlenecks and Known Waterlogging Points Commuters face the heaviest disruption during evening peak hours when festival traffic merges with daily office rush hours. Rain spells typically cripple key routes, with slow-moving traffic reported along Sankey Road, Guttahalli Main Road, JC Nagar Main Road, and the inbound traffic corridor from Hebbal. Furthermore, persistent showers have already led to significant waterlogging on both sides of the Marathahalli bridge, as well as along stretches in Kaikondahalli and Iblur heading toward Bellandur, requiring extra caution from drivers. ## Clearer Skies for Diwali and Cooler Nights Ahead Residents can look forward to weather relief just in time for the weekend. The chance of precipitation drops sharply to about 15 percent on both Saturday and Sunday, paving the way for mostly dry conditions. This implies that Diwali celebrations on Sunday, 8 November, should proceed under clear skies. Following the festival, night temperatures will register a steady decline, with minimum readings falling to near 19°C by Monday, 9 November, and dropping further to around 18°C by Tuesday, 10 November. ## What this means for you This weather alert directly impacts festival shoppers, daily commuters, and evening travelers in Bengaluru during peak Dhanteras rush hours. - **Across India:** Intermittent rainfall in southern regions during the festive week could lead to minor delays in regional transport and flights. Travelers are advised to build buffer time into their itineraries. - **In Bengaluru:** Commuters passing through Hebbal, Marathahalli, and Bellandur face severe evening delays due to waterlogging and slow traffic. Shoppers should complete errands earlier in the day or rely on metro services to avoid gridlocks. ## Why this happened Atmospheric instability caused by the weakening of Cyclone Murasu near the Bay of Bengal has driven moisture and strong winds across Karnataka. - **Cyclonic Activity:** The movement of weakened Cyclone Murasu pushed moisture-laden air into South Interior Karnataka, generating localized cloud cover. - **Evening Convection:** High humidity coupled with daytime warmth triggers sudden localized thunderstorm activity, particularly during late afternoon and evening hours. - **Subsequent System Dissipation:** The weather system is set to weaken fully by Saturday night, ensuring clear and dry weather for Diwali on Sunday. ## Questions & Answers ### 1. What is the probability of rain in Bengaluru on 6 November? The IMD has forecast approximately a 50 percent chance of rain in Bengaluru on Friday, 6 November. ### 2. Will it rain in Bengaluru on Diwali (8 November)? No, weather conditions on Sunday, 8 November, are expected to be clear and dry as the rain probability drops to around 15 percent. ### 3. Which areas in Bengaluru are most vulnerable to traffic jams and waterlogging? Key congestion points include Sankey Road, Guttahalli Main Road, JC Nagar Main Road, Hebbal inbound stretch, Marathahalli bridge, Kaikondahalli, and Iblur. ### 4. How will night temperatures change over the coming days? Night temperatures will gradually cool down, reaching nearly 19°C by Monday, 9 November, and about 18°C by Tuesday, 10 November. --- _TrendKia — Har trend, sabse pehle.. Machine-readable view; canonical HTML at the URL above._