The India Meteorological Department has issued critical weather warnings for northern India. Red and orange alerts are in effect for severe dense fog across multiple states. The warnings focus on Uttar Pradesh and Bihar through late December.

Official forecasts predict dangerous travel conditions. The IMD’s alerts signal a significant disruption to daily life and transportation networks.
Red Alert Details and Immediate Impact
The IMD posted a red alert for several Uttar Pradesh districts. It warns of “very dense fog” with visibility dropping below 50 meters. Major cities like Ayodhya, Prayagraj, Varanasi, and Lucknow are included.
According to the IMD, 24 specific districts are under the highest-level red alert. An additional orange alert covers 21 more districts in the state. This widespread warning indicates a severe and persistent weather event.
Road, rail, and air travel are expected to face major delays. Authorities are advising commuters to exercise extreme caution. The poor visibility creates a high risk for accidents.
Broader Regional Forecast and Cold Wave Threat
The weather agency also issued an orange alert for dense fog in Bihar. Districts including Patna, Muzaffarpur, and Champaran are affected. The fog is predicted to last in the region until December 31st.
Beyond the primary alert zones, dense fog is forecast for several other states. The IMD bulletin mentions Punjab, Haryana, Assam, and Meghalaya. Cold wave conditions are also predicted to accompany the fog in several areas.
Regions like Punjab, Haryana, and Rajasthan are expected to see cold waves. This combination of low visibility and biting cold amplifies the public health risk. Residents are urged to stay informed and take necessary precautions.
Travel and daily routines face severe disruption across North India. The IMD red alert for dense fog highlights a dangerous weather pattern. Officials continue to monitor the situation as conditions develop.
Info at your fingertips
What is the difference between a red and orange fog alert?
A red alert means “very dense fog” with visibility under 50 meters, posing severe danger. An orange alert is for “dense fog” with visibility between 50 and 200 meters, indicating significant disruption.
Which major cities in Uttar Pradesh are under a red alert?
The IMD’s red alert includes the cities of Ayodhya, Prayagraj (Allahabad), Varanasi, Lucknow, Kanpur, and Agra. Dozens of other districts are also under the highest warning level.
Are other states besides Uttar Pradesh affected?
Yes. The IMD has issued an orange alert for multiple districts in Bihar. Dense fog is also forecast for parts of Punjab, Haryana, Assam, and Meghalaya in the coming days.
What should people do during a dense fog alert?
Avoid unnecessary travel, especially by road. If driving is essential, use fog lights, drive slowly, and maintain a safe distance. Stay updated with the latest IMD and local authority advisories.
How long is this severe fog expected to last?
The IMD forecasts dense to very dense fog conditions in North India to persist at least until December 30th. Conditions in Bihar may last until December 31st.
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