Flash flood warnings and heavy rainfall have impacted various regions globally. The National Weather Service issued warnings for San Bernardino County, California, and parts of southern California due to thunderstorms and heavy rain, with significant flooding expected in areas like Wrightwood and Victorville. In the UK, a yellow weather warning was issued for southern England and Wales, with severe rain causing disruptions, flooding, and potential power cuts. Flash flooding also affected Shropshire and other parts of the Midlands, and parts of Penang, Malaysia, experienced flooding due to heavy downpours. South Wales saw severe flooding on Friday evening, with significant rainfall leading to road closures and power outages.