Subject: Geography Context: Delhi and other parts of north India are bracing for near cold wave conditions. Concept: A cold wave is declared when there’s a significant drop in minimum or night time temperature. The IMD’s criteria for a cold wave in the plains is that the minimum temperature should be 10 degrees or lower […]

Subject: Geography Concept: Over the years, India’s ability to track the formation of cyclones has improved significantly. There is a network of 12 doppler weather radars (DWR) along India’s coast if one were to begin counting from Kolkata and trawl up to Mumbai — there are 27 in all in the country. Depending on where […]

Subject: Geography Context: The Bay of Bengal will see its second Severe Cyclone of the year, after Super Cyclone Amphan formed in May. It is likely to hit Tamil Nadu coast by midweek. Concept: The depression will intensify into a cyclone. At this stage, the wind speed will range between 70 to 80 km/hr gusting […]

Subject :  Geography Context : Hurricane Iota made landfall in Nicaragua in Central America on Monday night and has developed into a category five storm. Concept : Iota was spotted as a tropical depression last week in the Central Caribbean Sea by the US National Hurricane Center (NHC). The Atlantic Hurricane season runs from June […]