Cyclone Nivar: an Overview
| Category | Details |
|---|---|
| Name | Cyclone Nivar |
| Formation Date | November 23, 2020 |
| Dissipation Date | November 27, 2020 |
| Origin | Bay of Bengal |
| Maximum Wind Speed | Up to 130 km/h (80 mph) |
| Affected Regions | Tamil Nadu, Puducherry, Andhra Pradesh |
| Landfall Location | Near Puducherry, Tamil Nadu |
| Category | Severe Cyclonic Storm |
| Impact | Heavy rainfall, flooding, strong winds, and property damage |
| Casualties | Several deaths reported, injuries, and displacement |
| Evacuations | Thousands evacuated in Tamil Nadu and Puducherry |
| Government Response | Preemptive evacuations, disaster management teams deployed |
| Post-Cyclone Recovery | Restoration of power, infrastructure repair, and relief measures |
Why is it called Cyclone Nivar?
Why is it Called Cyclone Nivar?
Naming Convention: Cyclones are named consistent with a pre-described listing maintained with the aid of using the World Meteorological Organization (WMO). Each member united states contributes names for Tropical Cyclone Nivar.
Iran`s Contribution: Tropical Cyclone Nivar become named with the aid of using Iran, reflecting its position withinside the local naming device for storms.
Meaning of Nivar: The call “Nivar” interprets to “light” or “shining” in Persian. Such names regularly deliver cultural importance and relevance to the region.
Purpose of Naming:
Effective Communication: Named storms beautify communique clarity, making it simpler for the general public to observe climate reports.
Public Awareness: Using particular names increases cognizance and urgency at some stage in climate signals and advisories, selling protection measures.
Rotational Use: The names are utilized in a rotating manner, because of this that as soon as a hurricane has been named, that call isn’t reused for numerous years, mainly if the hurricane become lethal or costly.
Regional Cooperation: The naming manner showcases global cooperation in catastrophe control and meteorological practices, making sure that each one affected countries are privy to extensive climate events.
Formation of cyclone Nivar
Formation of Cyclone Nivar
Initial Conditions:
Tropical Cyclone Nivar shaped withinside the Bay of Bengal, in which heat ocean waters (commonly above 26.5°C or eighty°F) offer the essential warmth and moisture for cyclone development.
Low-Pressure Area:
A low-stress gadget evolved over the region, growing a conducive surroundings for the formation of a cyclone. This low-stress region is characterised with the aid of using growing heat air, which results in condensation and cloud formation.
Tropical Disturbance:
The low-stress region intensified right into a tropical disturbance as wind styles and moisture converged, similarly improving hurricane development.
Tropical Depression:
As the gadget persevered to strengthen, it developed right into a tropical despair, with prepared convection and sustained winds of 35-forty km/h (22-25 mph).
Tropical Storm:
The despair intensified right into a tropical hurricane, receiving the call Tropical Cyclone Nivar because it reached sustained wind speeds of 63-118 km/h (39-seventy three mph).
Cyclone Status:
Nivar similarly intensified, attaining the popularity of a excessive cyclonic hurricane with most sustained winds of as much as one hundred thirty km/h (eighty mph) earlier than making landfall close to Puducherry, India, on November 25, 2020.
Dissipation:
After making landfall, Tropical Cyclone Nivar weakened and dissipated over land, bringing heavy rainfall and sturdy winds to affected areas, however in the end dropping its tropical traits with the aid of using November 27, 2020.
Effects of Cyclone Nivar
Effects of Cyclone Nivar
Heavy Rainfall:
Cyclone Nivar added severe rainfall, with a few regions receiving over 2 hundred mm (7.nine inches) in a brief span, main to flooding and waterlogging.
Strong Winds:
Winds reached speeds of as much as a hundred thirty km/h (eighty mph), inflicting considerable harm to infrastructure, which include homes, electricity lines, and bushes.
Flooding:
Coastal areas and low-mendacity regions skilled extreme flooding because of the aggregate of heavy rain and typhoon surge, displacing citizens and destructive property.
Casualties and Injuries:
The cyclone led to numerous fatalities and severa accidents throughout affected areas, in particular in Tamil Nadu and Puducherry.
Evacuations:
Thousands of humans have been evacuated from inclined regions to protection in transient shelters earlier than the cyclone made landfall, assisting to minimize
casualties.
Agricultural Impact:
Extensive harm happened to vegetation and agricultural land, affecting livelihoods withinside the region. Many farmers confronted lack of produce because of flooding and wind harm.
Power Outages:
Widespread electricity outages have been stated as bushes fell on electricity lines, main to considerable disruptions in power deliver in lots of regions.
Transportation Disruptions:
Roads, railways, and airports confronted delays and cancellations because of damaging climate conditions, affecting journey and logistics.
Government Response:
The authorities deployed catastrophe control teams, supplied comfort materials, and initiated recuperation efforts to restore infrastructure and repair crucial services.
Post-Cyclone Recovery:
Recovery efforts blanketed restoring power, clearing debris, and presenting monetary help to affected households and companies to assist them rebuild.
List of Cyclone Nivar Affected Areas in India
List of Cyclone Nivar Affected Areas in India
Tropical Cyclone Nivar broadly speaking impacted areas in Tamil Nadu and components of Andhra Pradesh, in conjunction with the Union Territory of Puducherry. The following regions have been significantly affected:
Tamil Nadu
Puducherry (Union Territory): Suffered substantial flooding and wind harm.
Chennai: Experienced heavy rainfall main to waterlogging in numerous regions.
Thiruvallur: Faced electricity outages and assets harm.
Kancheepuram: Reported flooding and disruption of services.
Chengalpattu: Experienced harm to infrastructure.
Villupuram: Flooding affected houses and agricultural land.
Cuddalore: Significant waterlogging and assets harm.
Nagapattinam: Coastal flooding and wind harm.
Tiruvarur: Heavy rainfall induced agricultural losses.
Tiruchirappalli: Experienced influences however to a lesser extent.
Dindigul: Heavy rains caused minor disruptions.
Coimbatore: Windy situations and rainfall affected normalcy.
Andhra Pradesh
Srikakulam: Faced heavy rains and flooding.
Vizianagaram: Significant rainfall impacted day by day life.
Visakhapatnam: Experienced wind and rain effects.
East Godavari and West Godavari: Encountered heavy rains and localized flooding.
The cyclone led to huge harm, prompting evacuations and considerable alleviation efforts in those affected regions.
Cyclone Nivar: Early Warning System
Cyclone Nivar: Early Warning System
Meteorological Monitoring:
The Indian Meteorological Department (IMD) hired superior satellite tv for pc imagery and climate fashions to display the improvement of Tropical Cyclone Nivar withinside the Bay of Bengal.
Forecasting:
Regular updates had been supplied concerning the cyclone`s path, intensity, and capability impact. IMD issued signals for the imminent cyclone primarily based totally on facts analysis.
Public Alerts:
Warnings had been disseminated via diverse channels, which include television, radio, social media, and cellular signals, to tell the general public approximately the cyclone’s predicted arrival and protection measures.
Evacuation Orders:
Authorities issued preemptive evacuation orders for susceptible coastal regions to make certain the protection of citizens. This helped limit casualties through moving human beings to more secure locations.
Collaboration with Local Agencies:
The IMD collaborated with kingdom catastrophe control government to put into effect evacuation plans, installation remedy camps, and offer real-time updates to the general public.
Community Awareness:
Awareness campaigns had been carried out in affected areas to teach citizens on cyclone preparedness, which include securing houses and emergency supplies.
Response Mechanism:
The early caution device allowed for well timed mobilization of catastrophe control resources, facilitating green rescue and remedy operations post-cyclone.
Post-Cyclone Assessment:
After Cyclone Nivar, exams had been achieved to assess the effectiveness of the early caution device, with a focal point on enhancing destiny responses.
This complete early caution device performed a vital function in mitigating the influences of Cyclone Nivar, making sure higher preparedness and protection for affected communities.
About Tropical Cyclones
About Tropical Cyclones
Definition:
Tropical Cyclone Nivar are effective storms characterised through a low-strain middle, prepared thunderstorms, and sustained winds of as a minimum 39 miles in line with hour (sixty three kilometers in line with hour). They also are called hurricanes or typhoons in exceptional areas.
Formation:
These storms usually shape over heat ocean waters (as a minimum 26.5°C or 80°F) in tropical and subtropical areas. The heat water presents warmth and moisture, fueling the typhoon`s development. Other important situations consist of a pre-current climate disturbance, enough Coriolis pressure to provoke rotation, and occasional vertical wind shear.
Structure:
A Tropical Cyclone Nivar includes numerous parts:
Eye: The calm middle of the typhoon, frequently with clean skies.
Eyewall: A ring of thunderstorms surrounding the eye, wherein the most powerful winds and heaviest rains occur.
Rainbands: Spiraling bands of clouds and precipitation that enlarge outward from the eyewall.
Categories:
Tropical Cyclone Nivar are categorized into classes primarily based totally on their wind speeds:
Tropical Depression: Winds much less than 39 mph (sixty three km/h).
Tropical Storm: Winds among 39-seventy three mph (sixty three-118 km/h).
Hurricane/Typhoon/Cyclone: Winds exceeding seventy four mph (119 km/h).
Impact:
Tropical Cyclone Nivar can purpose intense harm via robust winds, heavy rainfall, and typhoon surges, main to flooding and destruction of infrastructure, homes, and agriculture. They also can bring about lack of life.
Naming:
Cyclones are named to facilitate communique and awareness. Different areas have their very own naming conventions, commonly primarily based totally on lists maintained through meteorological organizations.
Cyclone Nivar: Key Facts for UPSC
| Key Facts | |
| Name | Nivar |
| Category | Very Severe Cyclonic Storm |
| Region | Bay of Bengal |
| Formed | 24 Nov 2020 |
| Dispersed | 27 Nov 2020 |
| Highest Wind Speed | 120 kmph |
| Affected areas | Tamil Nadu, Andhra Pradesh, Puducherry |
| Loss (estimated) | 500-600 million dollars |
| Deaths (estimated) | 14 |
Frequently Asked Questions (FAQs)
- What is a tropical cyclone?
A Tropical Cyclone Nivar is a powerful storm system with a low-pressure center and organized thunderstorms. - How do tropical cyclones form?
They form over warm ocean waters when specific atmospheric conditions are met, including a pre-existing disturbance and low vertical wind shear. - What are the main parts of a tropical cyclone?
The main parts include the eye, eyewall, and rainbands. - What are the categories of tropical cyclones?
They are categorized as tropical depression, tropical storm, or hurricane/typhoon/cyclone based on wind speed. - What impacts can tropical cyclones have?
They can cause severe damage through strong winds, heavy rainfall, flooding, and storm surges.
