Delhi, brace for the first heat wave of the season
What's the story
After thunderstorms and dust storms, it's heat waves for the capital. The first wave of the season is likely to hit today, after yesterday became the hottest day of the year yet. IMD has warned that temperatures could hit 45 degrees by the weekend. A dust storm is also likely tomorrow. Heat wave conditions are expected in Haryana, Chandigarh, Rajasthan and MP too.
Definition
What is a 'heat wave'?
According to IMD, a 'heat wave' is when normal maximum temperature crosses 40 degrees for plains and 30 for hilly regions, or when actual maximum temperature remains above 45. A 2017 study claimed temperature increase of less than one degree Fahrenheit over 50-years raised chances of heat wave deaths in India by 2.5 times. Over 4,620 deaths were recorded during 2013-2017 alone.
Stats
Palam was Delhi's hottest region yesterday
In Delhi, "day temperature in all weather-monitoring stations in Delhi have crossed 44 degrees, which is at least four degrees above the normal (40). This fulfils the heat wave conditions," said an official at the regional weather forecasting center. Palam and Safdarjung recorded the highest temperatures in Delhi yesterday, at 46 and 44 degrees respectively. Gurugram witnessed 44 degrees, while Faridabad recorded 44.1.
Prediction
Thunderstorms likely, but no relief from heat
Earlier, IMD had warned that summer during April-June would be harsh in north, west and central India. Temperatures would rise further by the weekend due to "hot winds from the west, a clear sky and scarcity of moisture in the air," a scientist said. Thunderstorms will bring temporary relief tomorrow, with temperatures rising again from Friday. There'll be no rain, an official added.
Relief
Respite expected only towards the end of May
Experts say respite from the blistering heat is likely only towards the end of May, with temperatures expected to fall somewhat by then. Delhi, and North India in general, often witness deadly heat, with scores of people dying each year. On May 24, 2013, the capital recorded a maximum temperature of 45.7, the highest for this month in the past decade.
Do you know?
Currently, Karachi in Pakistan is battling extreme heat conditions
Karachi (Pakistan) has been witnessing intense heat waves these last days. At least 65 people have died in just three days. Temperatures on Monday reached 44 degrees, way above the May average of 35. Frequent power outages and ongoing Ramzan fasting have worsened locals' conditions.