the downward momentum transportation produced by the high-altitude westerly jet with the suitable vertical circulation is the main reason of the strong gale beyond general cold.
高空西风急流配合适合的垂直环流,产生动量下传,是超出一般强度的冷空气大风产生的原因;
the forecast of typhoons track, intensity of rainfall and strong gale is very important.
台风的路径和风雨强度预报是台风预报服务的关键。
on an average a strong gale moves at the rate of40 miles an hour, a storm at about56 and hurricanes at90.