Archive · 20 Sep 2026
Bay of Bengal System May Strengthen, Scientists Monitor Track
A weather system has formed over the sea near the Andaman Islands.
It is moving toward the Bay of Bengal.
Scientists think it may become stronger as it travels.
It could first become a depression and then a deep depression.
It might eventually become a cyclone, but that is not certain.
Warm seawater can give storms energy.
Strong winds high above the sea could weaken the system.
The official weather department has not issued a cyclone warning yet.
Parts of Bengal may get heavier rain and gusty winds from Tuesday.
A low-pressure area over the north Andaman Sea is moving west-northwestwards toward the Bay of Bengal.
The system could strengthen into a depression and then a deep depression near the west-central Bay.
It may approach the south Odisha-north Andhra Pradesh coast around Wednesday morning.
The India Meteorological Department has not issued a cyclone warning, though private agencies see greater intensification chances.
Bengal may receive heavier rain and gusty winds from Tuesday, especially in coastal areas.
- Who
- Weather scientists and the India Meteorological Department are monitoring the system; private weather agencies are also assessing it.
- What
- A low-pressure area may intensify into a depression, deep depression, or possibly a cyclone.
- When
- The system is expected to reach the west-central and adjoining northwest Bay around Wednesday morning; heavier rain in Bengal is forecast from Tuesday.
- Where
- It formed over the north Andaman Sea and may move toward the west-central Bay near the south Odisha-north Andhra Pradesh coast.
- Why
- Warm sea conditions may support intensification, although strong vertical wind shear could limit development.
Official Caution
Higher Intensification Concern
Likelihood of cyclone formation
Official Caution
The India Meteorological Department has not issued a cyclone warning, and officials said not every system reaches cyclone intensity.
Higher Intensification Concern
Private weather agencies and apps have indicated a higher likelihood of further intensification.
Factors affecting development
Official Caution
Strong vertical wind shear may hinder the system’s intensification, according to a meteorological official.
Higher Intensification Concern
Warm sea conditions during the October-to-December period could provide energy for the system to strengthen.
- Current status
- A low-pressure area has formed over the north Andaman Sea and nearby regions.
- Movement
- The system is moving west-northwestwards.
- Potential development
- It may become a depression and then a deep depression, with cyclone development possible.
- Expected location
- The system may reach the west-central and adjoining northwest Bay near the south Odisha-north Andhra Pradesh coast.
- Official warning
- The India Meteorological Department has not issued a cyclone warning.
- Rain forecast
- Heavy rain is expected in coastal areas and some other parts of Bengal from Tuesday.
- Possible cyclone name
- If it becomes a cyclone, it would be named Arnab, a name provided by Bangladesh.