Storm resulting in smaller disturbances such as dust devils and whirlwinds. There are many varieties and names for storms: A strict meteorological definition of a terrestrial storm is a wind measuring 10 or higher on the Beaufort scale, meaning a wind speed of 24.5 m/s (89 km/h, 55 mph) or more; however, popular usage is not so restrictive. Storms can last anywhere from 12 to 200 hours, depending on season and geography. In North America, the east and northeast storms are noted for the most frequent repeatability and duration, especially during the cold period. Big terrestrial storms alter the oceanographic conditions
Royal Charter Storm wind speed and a shift in its direction. There was extensive structural damage along the coasts of Devon and Cornwall. The storm drifted northwards, hitting Anglesey by about 8 p.m. and not reaching maximum force at the River Mersey until midday on 26 October, then continued northwards to affect Scotland. The winds reached force 12 on the Beaufort scale and were well over . At the Mersey a wind force of 28 lbs to the square foot (14 N per 100 mm) was measured, more than ever previously recorded. On the north coast of Anglesey, where the "Royal Charter", a