Beaufort scale issued if winds of Beaufort force 9 or frequent gusts of at least 52 knots are expected.; "Storm Force Warnings" are issued if Beaufort force 10 or frequent gusts of at least 61 knots are expected; "Violent Storm Force Warnings" are issued if Beaufort force 11 or frequent gusts of at least 69 knots are expected; "Hurricane Force Warnings" are issued if winds of greater than 64 knots are expected. This scale is also widely used in the Netherlands, Germany, Greece, China, Taiwan, Hong Kong, Malta and Macau, although with some differences between them. Taiwan uses the Beaufort scale with
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