Tel Aviv, Aug. 11 -- Israel is set to swelter under one of its most intense heatwaves in decades, with forecasters warning of exceptional and possibly historic temperatures early this week.

The Israel Meteorological Service said Sunday that the worst conditions are expected on Tuesday and Wednesday, when the Jordan Valley could climb to 51degC (124degF), approaching the pre-state record of 54degC registered in 1942.

Around the Sea of Galilee, readings may hit 49degC (120degF), surpassing the area's current high of 47degC. Jerusalem is likely to top 40degC (104degF), with unusually severe heat also anticipated in the Upper Galilee and the Golan Heights. Tel Aviv is forecast to reach 36degC (97degF), while the Dead Sea region may see 47de...