High alert’ for several parts of north india due to heatwave issues
over some parts with a severe heatwave over isolated pockets are very likely over Punjab, Haryana, Chandigarh, Delhi, Rajasthan, Uttar Pradesh, Madhya Pradesh, Vidarbha and Telangana during the next five days,” the weather office said in its daily bulletin.
An orange alert is issued when a heatwave is likely to persist for more than four days or a severe heatwave for more than two days.
A heatwave is considered when the maximum temperature is at least 40°C and between 4.5°C and 6.4°C higher than the normal or when the maximum temperature is over 45°C for two stations in a sub-division for two consecutive days.
He cautioned that temperatures could soar up to 47 degrees Celsius in some parts over the next 2-3 days.
This is also for the first time this summer season that a red warning has been issued for heatwave, Srivastava said.
This season, the temperatures did not rise the way it usually does in north and central India because of significant rainfall activity during April that continued till mid-May.
On Saturday, Pilani in Rajasthan recorded 46.7 degrees Celsius.
The weather office sounds a heat wave alert when the maximum temperature is at least 40 degrees Celsius and the departure from normal temperature is 4.5 degrees Celsius to 6.4 degrees Celsius.