MONSOON - GEOGRAPHY
News: Widespread rainfall across
India
What’s in the News?
- First
active monsoon of the season over a large geographical area.
- 80%
of India reported widespread rainfall.
- Heavy
to very heavy spells in Assam, West Bengal, Uttar Pradesh, Uttarakhand,
Gujarat, coastal Maharashtra, Karnataka, Kerala, and Lakshadweep.
Factors Causing Widespread Rains:
- Southwest
monsoon gained momentum towards the end of June.
- Covered
the entire country by July 2, six days ahead of schedule.
- Multiple
favorable weather systems active or vigorous over southern, east,
northeast, and central India.
- Continuous
moisture-laden westerly winds from the Arabian Sea.
- Monsoon
trough position affecting central, eastern, and peninsular India.
- Off-shore
trough between south Gujarat and north Kerala.
- Wind
shear zone along latitudes 20° N between central and peninsular India.
- Low-pressure
system over the west-central Bay of Bengal.
Rainfall Status:
- All-India
rainfall increased from 242mm on July 9 to 305.8mm on July 17.
- 97%
of normal rainfall for the season.
- 17
states received normal or above-normal rainfall.
- Deficient
rainfall in Odisha, Haryana, Chandigarh, Himachal Pradesh, Jharkhand,
Kerala, Nagaland, Manipur, and Mizoram.
- Heavy
rainfall recorded in Konkan, Goa, Madhya Maharashtra, coastal Karnataka,
Kerala, Uttarakhand, west Uttar Pradesh, Gujarat, and West Bengal since
July 13.
The southwest monsoon season - Rainfall received from the southwest monsoons is seasonal in
character, which occurs between June and September.
The retreating monsoon season - The months of October and November are known for retreating
monsoons.
Forecast:
- Southwest
monsoon to remain active over south peninsular, eastern India, and
Himalayan states.
- New
low-pressure system developing over the northwest Bay of Bengal around
Friday.
- Red
alert for Kutch, Saurashtra, Konkan, Goa, coastal and south interior
Karnataka for heavy rainfall on Thursday.
- Orange
alert for Gujarat, west Madhya Pradesh, Madhya Maharashtra, Konkan, Goa,
coastal and interior Karnataka, Kerala, Telangana, Andhra Pradesh, and
Odisha on July 19.
- Yellow
alert for Uttarakhand, Himachal Pradesh, Uttar Pradesh, Vidarbha, east
Madhya Pradesh, Chhattisgarh, and West Bengal.
- Enhanced
rainfall in Rajasthan, Haryana, Punjab, west Uttar Pradesh, and
Uttarakhand starting Thursday.
- Improved
rainfall in Odisha, coastal Andhra Pradesh, and Telangana starting
Thursday.
- Active
monsoon to bring substantial rainfall over most regions for the next ten
days, except Jammu and Kashmir.
- Expected
subdued rainfall activity in early August.
Sources: https://indianexpress.com/article/explained/explained-climate/widespread-rainfall-india-9458926/