Tropical humidity feeding into a ‘deadly’ heat dome will drive fierce thunderstorms and a ‘monsoon’ deluge. The US heatwave is about to go bang amid warnings for ‘hazardous’ storms, frequent lighting, torrential downpours and floods. A plume of moisture from the Gulf of Mexico will rocket temperatures in parts past the 115F mark, creating an unstable and explosive atmosphere. A cold front moving into tropical air across the northeast will deliver an extra sting in the tail, experts warn. AccuWeather senior meteorologist Tyler Roys said: “A cold front moving into a very hot and very muggy air m…
