#recordheat

🌡️ Widespread Heat Alert Coverage

Over 125 million Americans are currently under some level of heat alert, with the eastern half of the U.S.—from the Midwest through the Northeast—experiencing record-breaking temperatures under a massive heat dome wbaltv.com+15cbsnews.com+15wafb.com+15.

🇺🇸🔥❄️ Historic Christmas in the US: From Record Heat to Sudden Cold

This year, continental USA experienced the warmest Christmas on record. Temperatures were up to 20° above normal for the week, with daily record highs in many states, creating an unusually hot holiday.

Now, nature is preparing a sharp swing. After historic December heat, much of the country will face a rapid cold snap, with temperatures around 20° below normal, creating a dramatic weather contrast.

October 2024 was the hottest October for India since 1901. The India Meteorological Department (IMD) reported unprecedented mean and minimum temperatures. Delhi experienced its warmest October since 1951, with no rainfall recorded.

Global Warming’s Influence

One factor contributing to these high temperatures is global warming. Over recent years, temperatures have risen globally. This trend has intensified in October 2024, affecting various countries, including India.

Western disturbances are vital for winter rainfall in northwest India. These are extra-tropical storms that originate in the Mediterranean. In October 2024, no western disturbances impacted northwest India. This absence led to a 76% decrease in rainfall compared to the norm.

Impact on Temperature Records

Central India recorded its hottest October since 1901. Northwest India had its second-warmest October, while south peninsular India experienced its third-warmest. All regions in India broke minimum temperature records for the month.

October marks the transition from the rainy season to winter. This period often sees higher temperatures due to the retreating monsoon. Residual moisture from the monsoon increases humidity, which contributes to heat retention.

Role of Humidity and Greenhouse Gases

Higher humidity levels trap heat in the atmosphere. Water vapor acts as a greenhouse gas (GHG). Without rainfall or winds, heat accumulates, creating sultry conditions. This phenomenon was evident across India in October 2024.

Consequences of Climate Change

The lack of rainfall and high temperatures are linked to climate change. As the atmosphere warms, changes in global weather patterns occur. This disrupts normal rainfall patterns, exacerbating heat conditions.

India is not alone in experiencing record heat. Japan recorded its warmest October since 1898. Regions from West Asia to Japan, including India and Pakistan, are facing similar temperature extremes.

Moisture Levels and Heat Indices

For every 1°C rise in global temperatures, moisture levels increase by 7%. This amplifies greenhouse gases and raises heat indices. High temperatures combined with humidity can lead to humid heatwaves.

Future Projections

As global temperatures continue to rise, humid heatwaves may become more frequent. The accumulation of greenhouse gases in the atmosphere exacerbates this trend. The implications for weather patterns and human health are.

The extreme temperatures observed in October 2024 highlight the urgent need to address climate change. The interconnectedness of global weather patterns means that actions in one region can impact many others. These dynamics are essential for effective climate.

website: popularscientist.com