Typhoon's dangerous hemisphere" on which side?
The right side of the N-hemisphere Typhoon forward direction is dangerous: Typhoon's own wind speed and Moving speed overlap, wind force is stronger than the left, and sea conditions are worse.
What is a Dangerous Circle?
The typhoon reverse clock rotates in the N hemisphere, using typhoon forward direction as the benchmark, dividing typhoon into the right half:
- The right hemisphere (dangerous hemisphere) Typhoon Moving Directionthe sameReal wind speed = rotating wind speed + moving speed
- The left half circle. Wind direction and Moving directionThe oppositeReal wind speed = rotating wind speed-moving speed
For example, a rotating wind speed of 40 m/s, a typhoon with 7 m/s toward NMoving, a real wind speed of 47 m/s on the right, and only 33 m/s on the left—one side is Super Typhoon level, the other side is only Typhoon level, two degrees less.
Effective Defense of Typhon
- City on the right side of the landfall point should be especially vigilant.: Similarly 100km from the center of Typhon, the rain on the right is noticeably strong at on the left.
- The storm is worse on the right side.The right-half-circular toward shore wind pushes the sea water toward the coast, with the largest area usually on the right side of the Landfall point.
- Principle of navigation.: " Dangerous Half Circle" and" Navigable Half Circle" were maritime terms—if a ship could not avoid Typhon, it would rather pass through the left Half Circle.
On the right side is another danger: a tornado.
Typhoon outer perimeter (especially the right front symbol) is easily derived from the spiral rain belt of tornadoes.Typhoon outer perimeter tornadoes appear several times in Jiangsu, Guangdong and other places in China, which is also another reason why the right hemisphere is known as the dangerous hemisphere.
How to judge which side you are on?
Open TypehoonSays live track map, see Typehoon's ForecastMoving direction: If your city is at Typhoon forward direction on the right side, at danger hemisphere, the defense standard should be improved accordingly.