The India Meteorological Department (IMD) has issued warnings for heavy rainfall in southern India and cold wave conditions in northern and western regions. Areas like Coastal Andhra Pradesh, Tamil Nadu, and Rayalaseema are expected to see heavy rainfall, while cold wave alerts are in place for states such as Himachal Pradesh, Punjab, and Rajasthan. Dense fog is also likely in northern regions, including Delhi/NCR. Here are the details
Weather Systems at Play
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Low-Pressure Area: A well-marked low-pressure area lies over the southwest Bay of Bengal, accompanied by a cyclonic circulation extending up to middle tropospheric levels. It is expected to move northwestward toward the north Tamil Nadu and south Andhra Pradesh coast over the next 24 hours. Subsequently, it is likely to shift northward along the Andhra Pradesh coast.
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Western Disturbance: A Western Disturbance appears as a trough in the westerlies, positioned roughly along longitude 60°E and north of latitude 28°N, with an induced circulation over southwest Rajasthan.
Rainfall Forecast
IMD has issued rainfall forecasts for various regions, highlighting the likelihood of heavy to very heavy rainfall in parts of southern India over the coming days. Coastal Andhra Pradesh, Tamil Nadu, and Rayalaseema are expected to witness significant rainfall activity, necessitating precautions in the affected areas.
Region |
Date |
Rainfall Intensity |
Coastal Andhra Pradesh |
19th-20th Dec |
Heavy to very heavy rainfall likely. |
Tamil Nadu |
18th Dec |
Isolated heavy rainfall expected. |
Rayalaseema |
19th Dec |
Isolated heavy rainfall predicted. |
Temperature and Cold Wave Alerts
The IMD has issued temperature and cold wave alerts for various regions across the country. These alerts indicate significant changes in minimum temperatures and a high likelihood of severe cold wave conditions, particularly in the northern and western areas. With temperatures expected to decrease in some regions and increase in others, residents are advised to stay informed and take necessary precautions to protect themselves from the extreme cold and frost.
1.Temperature Trends
Forecast:
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Western Himalayan Region: Gradual fall of 2-3°C over the next 2-4 days.
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Plains of Northwest India: Fall of 2-3°C expected after 1-2 days of stable temperatures.
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Central India & Maharashtra: Rise of 3-4°C over the next two days.
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East India: Rise of 2-3°C over the next two days, with no significant change thereafter.
2.Cold Wave Warnings
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Severe cold wave conditions are likely in isolated areas across Himachal Pradesh, Punjab, Rajasthan, and Haryana between 19th and 22nd December.
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Ground frost conditions are expected in pockets of Himachal Pradesh and East Rajasthan during the same period.
3.Dense Fog Alerts
Dense to very dense fog is anticipated during late-night and early-morning hours in the following regions:
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Punjab, Haryana, Uttar Pradesh: 19th Dec
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East Rajasthan, Jharkhand: 20th-21st Dec
Delhi/NCR Weather Outlook
Delhi and the National Capital Region (NCR) are set to experience a mix of clear skies, dense fog, and smog in the coming days. While temperatures have shown a slight rise recently, foggy conditions and variable wind patterns will dominate, impacting visibility and air quality. Here’s a detailed forecast for the region.
Forecast (19th-21st Dec):
Date |
Sky Condition |
Fog/Smog |
Wind Speed |
19th Dec |
Mainly clear |
Dense fog, very dense fog in places |
SE direction, <6 kmph |
20th Dec |
Mainly clear |
Dense fog, very dense fog in places |
N direction, 4-6 kmph |
21st Dec |
Mainly clear |
Moderate to dense fog in morning |
NW direction, 8-10 kmph |
Residents are advised to stay alert as the IMD issues warnings for temperature drops, cold waves, and dense fog in various regions. It’s crucial to follow safety guidelines and adjust activities to the changing weather conditions.