The advisory was for Atchison, Miami, Doniphan, Leavenworth, Wyandotte, Johnson, Nodaway, Worth, Gentry, Holt, Andrew, De Kalb, Buchanan, Clinton, Platte, Clay, Jackson and Cass counties.

India Meteorological Department (IMD) reported a minimum temperature of 7 degrees Celsius in Delhi on Thursday, along with a forecast of dense fog.

ORLANDO, Fla. - A Dense Fog Advisory is in effect for most of Central Florida on Thursday morning. The advisory is given when extensive fog is expected to lower visibility to 1/4 mile or less across a large region for two or more hours, according to the National Weather Service.

Fog alert! Delhi Airport issued an advisory on December 26 about ongoing low visibility procedures but confirmed no impact on flight operations

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Several parts of north India experienced cold wave conditions with Jammu and Kashmir still under the grip of Chillai-Kalan, a 40-day extreme winter that began on December 21.

A thick layer of fog covered Delhi on Christmas morning as the air quality remained 'very poor'. The low visibility affected flights at the Delhi airport. The weather department has issued a yellow alert for Wednesday and warned of dense fog in the early morning hours.

Severe fog at Delhi's IGI Airport reduces visibility to 100 metres, affecting flights. CAT-3 procedures in use.

Delhi Airport said in its advisory on Wednesday morning that flights that are not CAT III compliant may get affected.