Chandigarh, Oct. 30 -- The city's maximum temperature plunged over seven degrees on Thursday to settle at 25.4degC, down from 33degC a day earlier, as light rain was reported in isolated parts of the city. The India Meteorological Department (IMD) has issued an orange alert for Friday, warning of thunderstorms, lightning and gusty winds. The minimum temperature rose to 16degC on Thursday from 14.5degC recorded on Wednesday. Although light rain was reported in isolated areas in the morning, no measurable precipitation was recorded at IMD observatories. According to the IMD forecast, maximum temperatures are expected to rise gradually over the next few days, ranging between 27degC and 31degC until Monday. The minimum temperatures are likely to remainbetween 16degC and 17degC during this period....