Nearly every part of the United States is getting walloped by wild weather or just about to be. Days of downpours have begun in Hawaii. The Southwest will soon bake with day after day of record 100-degree-plus (38 Celsius-plus) heat. Two storms will dump snow by the foot over northern Great Lakes states. And the dreaded polar vortex will again invade the Midwest and East with soul-crushing Arctic chill. This forecast of extremes comes as weather whiplash already hit much of the East. On D C. a...

DUBAI, United Arab Emirates (AP) — A large explosion struck Iran’s capital, Tehran, on Friday at a square filled with demonstrators, Iranian state television reported. The explosion hit Ferdowsi Square, just down Enghelab Street from Tehran University, the epicenter of ongoing Quds, or Jerusalem, Day demonstrations. The cause of the blast was not immediately known. Israel had warned it could strike in the area just before the blast. Intense airstrikes began landing around Tehran just were...

Nearly every part of the United States is getting walloped by wild weather or just about to be. Days of downpours have begun in Hawaii. The Southwest will soon bake with day after day of record 100-degree-plus (38 Celsius-plus) heat. Two storms will dump snow by the foot over northern Great Lakes states. And the dreaded polar vortex will again invade the Midwest and East with soul-crushing Arctic chill. This forecast of extremes comes as weather whiplash already hit much of the East. On D C. a...