The Indian summer monsoon typically lasts from June-September (Fig. 58d), with large areas of western and central India receiving more than 90% of their total annual precipitation during the period, and southern and northwestern India receiving 50%-75% of their total annual rainfall.
Where are monsoons most likely to occur?
Monsoons are most often associated with the Indian Ocean . Monsoons always blow from cold to warm regions. The summer monsoon and the winter monsoon determine the climate for most of India and Southeast Asia. The summer monsoon is associated with heavy rainfall.
What months do monsoons happen?
It usually happens between April and September . As winter ends, warm, moist air from the southwest Indian Ocean blows toward countries like India, Sri Lanka, Bangladesh, and Myanmar. The summer monsoon brings a humid climate and torrential rainfall to these areas. India and Southeast Asia depend on the summer monsoon.
Which months are monsoon most likely?
Monsoons are most likely to occur in June . According to scientists, monsoon is a seasonal change in the direction of the winds in a region. In the tropics, Monssons cause wet and dry seasons. The Summer monsoon provokes heavy rainfall.
Where do monsoon rains occur?
With the world’s strongest monsoons, this region stretches from the South China Sea into the Indian Ocean and includes Asia and the northern end of Australia. From June until September, summer monsoon rains occur in South Asian countries such as Vietnam, Thailand, Cambodia, Bangladesh, Laos, India, and Pakistan.
What are the disadvantages of monsoons?
What are the Disadvantages of the Monsoon Season? Monsoons have the potential to be extremely violent weather systems . Drought-stricken land can be suddenly drenched with several inches of rain. Arroyos and canyons are prone to flooding as runoff from higher areas rush to carry excess rainfall through to lower areas.
How long do monsoons last?
Monsoon runs from June 15 to Sept. 30 . It used to start only after three consecutive days with a dew point of 54 degrees or higher.
Why do monsoons happen at night?
During the monsoon, thunderstorms are fueled by daytime heating and build up during the late afternoon and early evening. Typically, these storms dissipate by late night, and the next day starts out fair, with the cycle repeating daily.
How are monsoons caused?
The primary cause of monsoons is the difference between annual temperature trends over land and sea . ... This low pressure regions sees continuous rise of moist wind from the sea surface to the upper layers of the atmosphere, where the cooling means the air can no longer hold so much moisture resulting in precipitation.
What are winter monsoons?
Winter monsoons have a dominant easterly component and a strong tendency to diverge, subside, and cause drought . Both are the result of differences in annual temperature trends over land and sea. ... persistent offshore flow called the winter monsoon occurs.
What states are affected by monsoons?
The North American monsoon (NAM) occurs from late June or early July into September, originating over Mexico and spreading into the southwest United States by mid-July. It affects Mexico along the Sierra Madre Occidental as well as Arizona, New Mexico, Nevada, Utah, Colorado, West Texas and California .
What are the types of monsoons?
MANILA, Philippines—Monsoons are seasonal winds that bring heavy rains. According to the Philippine Atmospheric Geophysical and Astronomical Services Administration, the country experiences two kinds of monsoons— the northeast monsoon and the southwest monsoon .
Where in the US are monsoons most common?
North America’s monsoon season officially begins June 15. The stormy weather begins in Mexico, and the pattern of thunderstorms and heavy rains bleeds northward, until it crosses into the United States. The monsoon typically affects Arizona, New Mexico, western Texas, southern Utah, Colorado and southern Nevada .
What are the positive and negative effects of monsoons?
Monsoons can have both negative and positive effects. Flooding caused by monsoon rains can destroy property and crops (SF Fig. ... However, seasonal monsoon rains can also provide freshwater for drinking and crop irrigation.
What is known as onset of monsoon?
The season that is marked by the onset of monsoon is known as south-west monsoon . It is also called as rainy season. It sets in when winds blowing from Arabian Sea and Bay of Bengal carry moisture and hits the mountains. It lasts from June to September.
What are the positive effects of monsoons?
The negative effects of the monsoon winds are that huge amounts of precipitation fall, leading to large floods. A positive effect brings fertility to the soil , and contributes to a good yield in agriculture. Thanks to this, the nutrition of the population is safe.
