IMD warns of weather changes in 15 states: rains and cooling expected from mountains to Delhi and Bihar

The climate in the Delhi-NCR region has been undergoing sudden changes over the last two to three days. Due to rain and cool winds, temperatures have dropped, making the weather pleasant. However, this altered climate is not long-term.

According to the current situation, the period of rain and cold in Delhi-NCR is likely to last only until tomorrow. After that, temperatures may rise again, meaning that the current coolness cannot be considered the start of a stable winter. The weather may change again in the coming days.

The cause of this sharp weather change is attributed to the influence of a deep depression over the Bay of Bengal. This system shifted towards Uttar Pradesh. Its impact caused weather changes in Delhi-NCR and other plains areas over the last two to three days. Additionally, rainfall and snowfall in the mountainous regions, where a Western Disturbance was active, influenced the weather in the plains areas.

Although there is no new Western Disturbance in the near future, the weather in the mountainous regions may gradually change, which will subsequently affect the climate of the plains areas. Regarding the monsoon situation, monsoon processes are still active in some parts of the country, so it continues to rain in different places. Nevertheless, the monsoon has moved out of Rajasthan and Delhi-NCR.

At the same time, the process of monsoon withdrawal is continuing in several other states of the country, indicating that the monsoon has not left the entire country simultaneously. The situation varies across different areas, and rain continues in some places. For residents of Delhi-NCR, it is most important to understand that the coolness of the past few days should not be considered a permanent change in weather. Although the temperature has indeed dropped due to the rains, it may rise again in the coming days.

As September concludes, the weather in many regions of the country is changing: strong precipitation, thunderstorms, and high winds are being observed, causing concern. In mountainous areas, the risk of flash floods and landslides persists amid the rains. The Meteorological Department (IMD) has issued a warning for rain, storms, lightning strikes, and strong winds, which is also effective on September 28 in several states.

Although the southwest monsoon in India is in a withdrawal phase, the weather remains active in many places. According to IMD data, the tropical disturbance line of the retreating monsoon passed through Gurdaspur, Chandigarh, Muzaffarnagar, Aligarh, Dauhampur, Udaipur, Disa, and Naliya, reaching the Arabian Sea on September 27. Furthermore, a low-pressure area has formed over the northern part of central Uttar Pradesh, which is expected to shift in a north-northwesterly direction and begin to weaken over the next 12 hours.

This may lead to the persistence of rainfall in some parts of North India. Another low-pressure area has also formed near the southern coast of Myanmar. It may move towards the North Andaman Sea and then towards the coast of the Bay of Bengal and neighboring Bangladesh. This weather phenomenon could potentially cause rain in some areas of Eastern and Northeast India.

In Delhi and NCR, partly cloudy skies are expected on September 28, with a possibility of light drizzle in some zones. The maximum temperature may reach around 31 degrees Celsius, and the minimum will be 20 degrees Celsius. By September 29, clearer weather is anticipated in Delhi, with a slight increase in temperature. On that day, the wind from the northwest may blow at a speed of about 18 kilometers per hour.

Following recent heavy rains in Uttar Pradesh, signs of improvement are gradually appearing. No warnings for heavy rainfall have been issued for the state on September 28. Nevertheless, the weather system in the northern part of central Uttar Pradesh has not yet dissipated, and rains may continue in some places as it moves. Very heavy rainfall, exceeding 30 centimeters in some areas, was recorded in Eastern Uttar Pradesh on September 27.

Very heavy rains were also noted in Western Uttar Pradesh. Persistent precipitation has negatively affected people's lives, causing flooding in many places. On September 28, rain and thunderstorms are possible in some parts of Western and Eastern Uttar Pradesh, but a decrease in precipitation intensity is forecast.

In Bihar, a period of rain and thunderstorms accompanied by strong winds is expected in several districts from September 28 to October 1. Although no heavy rainfall warning has been issued at the moment, very heavy rains were registered in some parts of Bihar on September 27. Precipitation may continue in the coming days, but a gradual decrease in intensity is expected.

In Uttarakhand, heavy rains are possible in isolated places on September 28, along with the threat of thunderstorms and lightning. Within the next 24 hours, there is a danger of flash floods in some areas of Uttarkashi, Dehradun, Tehri Garhwal, Chamoli, and Rudprayag. Rain and thunderstorms are also forecasted in Himachal Pradesh; residents of Kinnaur, Shimla, and Sirmaur are advised to remain vigilant. During heavy rainfall in mountainous areas, the risk of landslides and road closures increases.

Rain and thunderstorms are also possible in Panchabagh, Haryana, and other parts of Northwest India. Very heavy rainfall, ranging from 12 to 20 centimeters, was recorded in Uttarakhand and Western Uttar Pradesh on September 27.

Rainfall is expected to continue in Madhya Pradesh from September 28. In Western Madhya Pradesh, rain is forecast from September 28 to 30, and in Eastern Madhya Pradesh, from September 28 to October 1. Thunderstorms and lightning are possible in some areas. Rains may also occur in Vidarbha, and rain and thunderstorm activity is expected in Chhattisgarh.

Active weather is expected in several Northeastern Indian states on September 28. Rain is possible in Arunachal Pradesh, while Assam, Meghalaya, Nagaland, Manipur, Mizoram, and Tripura are also forecast to receive precipitation. In Assam and Meghalaya, strong winds of 40–50 kilometers per hour are expected from September 28 to 30, with maximum speeds potentially reaching 60 kilometers per hour. Such weather is likely in Nagaland, Manipur, Mizoram, and Tripura from September 28 to October 1.

In West India, rain is possible in Gujarat, Konkan, Goa, and Central Maharashtra. Rainfall is also expected in Marathwada on September 28. Central Maharashtra is expected to experience strong winds of 30–40 kilometers per hour on September 28, with gusts up to 50 kilometers per hour. Strong winds are also forecast in Marathwada.

Although the monsoon season usually begins to gradually weaken by mid-September, the weather in North India has changed again. According to the latest forecast from the India Meteorological Department (IMD), heavy rain is expected in Chandigarh, Punjab, Haryana, Delhi-NCR, Jammu and Kashmir, Himachal Pradesh, and Uttarakhand from September 16 to 18. Extensive and significant downpours are predicted in many places, which may be accompanied by thunderstorms, lightning strikes, and strong winds.

This new weather situation arose due to the activation of a new atmospheric system in the final phase of the monsoon. In Delhi-NCR, the weather in recent days has been variable: alternating between bright sunshine and sudden light rains. Even on September 15, the sky could remain cloudy with the possibility of localized precipitation.

The situation will intensify on September 16 and 17. Quite heavy rain is expected in Haryana, Chandigarh, Delhi, and Punjab, with the possibility of heavy downpours in some areas. This increases the risk of city flooding and transportation disruption.

In the mountainous regions, the impact of the rains may be even more serious. Heavy rains and thunderstorms are forecasted in Jammu and Kashmir and Ladakh from September 15 to 17. Strong precipitation is also possible in Himachal Pradesh and Uttarakhand in different locations. In the mountains, sudden rains can trigger rising river levels, landslides, and road closures, so tourists and local residents are advised to remain vigilant.

Experts note that while such active periods are not unusual for the end of the monsoon in September, the intensity of rainfall in some areas might be higher this time. Fluctuations in temperature are observed due to high humidity and local weather systems. In cities like Delhi, it has become common for the sun to shine in the morning, followed by clouds after noon.

Heavy rain directly affects agriculture, as crops are currently being cultivated in Punjab and Haryana. Flooding can damage harvests, and there is a risk of inundation in low-lying areas in densely populated regions like Delhi-NCR. Falling trees or power line breaks due to lightning strikes and strong winds are also possible.

According to analysts, these rains are part of the last active stage of the monsoon. The IMD indicated that the monsoon withdrawal process may begin around September 19 in parts of Western Rajasthan. Thus, the rains from September 16 to 18 could be one of the last major downpours of the season, after which a gradual improvement in weather and an increase in temperature is expected.

The meteorological service regularly publishes updates. Residents are advised to avoid unnecessary travel, especially in mountainous areas. It is necessary to prevent water accumulation in homes and use electrical equipment cautiously. Local administrations should ensure the readiness of drainage systems and emergency services.

Decisions regarding schools, colleges, and offices may be made depending on the weather conditions. Overall, the weather in North India will remain active over the next three days. Although heavy rains can bring relief from heat and humidity, it is crucial to remain vigilant.