3 days ago
Storm warning: Delhi's thunderstorms left 75 flights diverted in May
Delhi airport faces flight disruptions due to pre-monsoon thunderstorms. May saw numerous diversions and delays. One day witnessed 49 flight diversions. Thunderstorms pose challenges during takeoff and landing. Wind shifts and squalls contribute to safety concerns. Historically, Delhi experiences many thunderstorms annually. Weather is a significant factor in aviation incidents. Recent disruptions surpass previous records.
Tired of too many ads?
Remove Ads
Tired of too many ads?
Remove Ads
As Delhi transitions into peak pre-monsoon season, the skies over IGI Airport have turned increasingly turbulent—literally. May alone witnessed six major thunderstorms disrupting flight schedules, causing over 75 diversions and hundreds of delays, Times of India has of the most significant incidents occurred on May 25, when 49 flights were diverted due to stormy weather, making it one of the worst days for air travel this thunderstorms typically last only a few minutes, their impact ripples through the aviation network for hours.'Of all the weather-related hazards, thunderstorms have the highest impact on aviation across the world,' TOI quoted R K Jenamani, senior scientist at the India Meteorological Department (IMD), as saying. These storms, often accompanied by lightning, gusty winds, squalls, and even hail, pose serious challenges during takeoff, cruising, and landing phases of wind direction shifts during storms prevent safe takeoffs and landings. On May 2, an intense storm with a squall reaching 74 kmph forced the diversion of three flights and delayed over 500 others. A similar squall on May 17 led to six "go-arounds", a safety maneuver where pilots abort landing attempts and circle back, while more than 300 flights experienced Delhi averages 45 thunderstorms annually, with around 29 occurring between May and August. A study titled 'Characteristics of Thunderstorms and Squalls over IGI Airport', as reported by TOI, analyzing data from 1995–2005, noted the highest thunderstorm activity in June, followed by July, with squalls most frequent in May and June.'More than 80% of thunderstorms in each season are of duration less than three hours,' the study found, with peak pre-monsoon activity typically occurring between 12:00 and 15:00 turbulence during storms is often caused by unstable air currents- strong updrafts that can lift aircraft suddenly, followed by downdrafts that may cause them to drop altitude rapidly. These conditions not only disrupt schedules but also pose safety remains a significant factor in aviation incidents globally. A study titled 'Bad Weather and Aircraft Accidents – Global Vis-à-vis Indian Scenario' revealed that 21% of aircraft accidents in India between 1992 and 2008 were weather-related, compared to 26–32% worldwide. In both India and the US, wind-related issues accounted for the highest share of these May 2018, about 70 Delhi-bound flights were diverted due to storms—then considered one of the worst impacts in recent memory. Last month's figures now surpass that, marking a sharp reminder of the growing challenge weather poses to aviation.(With inputs from TOI)
