Weather Blog Clouds Hover Over the Alaska Peninsula Winds interacted with mountainous terrain to produce long, sharp-edged standing wave clouds. Read More… About Author OTW Observer See author's posts Post navigation Previous BBC London weather experts forecast the exact date of 18C pure sunshine after spell of rainNext Met Office pollen warning for London as ‘very high’ levels to trigger hay fever sufferers for 3 days Related Stories A School of Mud Volcano Islands in Azerbaijan Weather Blog A School of Mud Volcano Islands in Azerbaijan April 21, 2026 Thailand’s Krabi Coast Weather Blog Thailand’s Krabi Coast April 20, 2026 Spring Rains Saturate Michigan Weather Blog Spring Rains Saturate Michigan April 17, 2026