Hurricanes | National Geographic Kids

Front

ما هو الإعصار؟

Back

A hurricane is a powerful storm with winds of at least 74 miles an hour that forms in the ocean.

Front

بماذا يُسمى الإعصار في مناطق مختلفة من العالم؟

Back

Hurricanes are called typhoons in the western Pacific Ocean and cyclones in the southern Pacific and Indian Oceans.

Front

ما هو المصطلح العلمي للأعاصير، والتايفونات، والسيكلونات؟

Back

Scientists refer to all of them as tropical cyclones.

Front

كم عدد الأعاصير المدارية التي تحدث عالميًا كل عام؟

Back

As many as 150 tropical cyclones occur around the world each year.

Front

ما هي الشروط اللازمة لتكوّن الإعصار؟

Back

Warm ocean water of at least 79°F and a tropical depression with low air pressure are needed for a hurricane to form.

Front

ماذا يحدث عندما يرتفع الهواء الدافئ في منخفض استوائي؟

Back

The warm air releases heat, cools down, and condenses into gusty bands of clouds and storms, strengthening the spiral.

Front

عند successful سرعة رياح تصبح منطقة الضغط المنخفض عاصفة استوائية؟

Back

A tropical depression becomes a tropical storm when winds reach 39 miles per hour.

Front

عند أي سرعة رياح تصبح العاصفة الاستوائية إعصارًا؟

Back

A tropical storm becomes a hurricane when winds reach 74 miles an hour.

Front

ماذا يحدث للإعصار عندما يتحرك فوق مياه أبرد أو اليابسة؟

Back

It begins to weaken as it loses the warm water that fuels it, but dangerous winds and storm surges can still cause damage.

Front

ما هو اندفاع العاصفة؟

Back

A storm surge occurs when a strong storm pushes ocean water ashore, potentially flooding coastal areas with over 20 feet of water.