When scientists applied a new model of human survivability that takes into account the body's ability to function and stay cool depending on age, they found all six events had seen non-survivable periods for older people who could not find shade.
Kennedy predicts hot and dry conditions from the west will shift eastward later this week, allowing for a noticeable warm-up and shift towards spring-like conditions.
"This is going to help fill that gap in minutes to hours lead time that's vital to know where the heaviest rain is going to hit," Ralph said. "And when and what communities are going to be affected so people in the preparedness community and water resource management community can take action to help protect people's lives and property."
Parts of the Arabian Peninsula and Persian Gulf could be slammed by strong to severe thunderstorms Thursday, bringing the potential for damaging winds, destructive hail and a few tornadoes.
Flash flooding has been a major problem in recent days in places such as Maui, Molokai and the Big Island, where rain had been falling between 1 and 2in (2.5 and 5cm) an hour overnight, according to the Hawaii emergency management agency.
The powerful March storms that drenched Hawaii produced more than 2 trillion gallons of rain and pushed precipitation levels to as much as 3,000% above normal in a 14-day period for this time of year.
The storm from Sunday into Monday has the potential to become a bomb cyclone, which occurs when central pressure drops at least 0.71 inches of mercury (24 millibars) in 24 hours or less. That rapid strengthening would generate an expansive and intense wind field.
Wexford, Wicklow, Dublin, Meath and Louth will be under a Status Yellow wind warning and Met Éireann are warning of fallen trees and loose debris, as well as difficult travelling conditions associated with this warning. Counties Cork, Waterford, Carlow, Kilkenny, Wexford, Wicklow, and Dublin will be under also be under a Status Yellow rain warning and these counties can expect flooding, poor visibility and difficult travel conditions for the 24-hour period.
"It will prove cold with some frost and ice in places on Friday morning, especially in the west and north," she said. "Munster and south Leinster will see cloud, but that will clear to leave dry and sunny conditions with a few isolated showers in the north and highest temperatures of 3C to 7C," she said. Friday night will prove mainly dry but very cold and frosty with some icy patches.
