PHILADELPHIA — The first cold snap of the season is bringing bone-chilling temperatures to parts of central and eastern Pennsylvania.

The National Weather Service has issued hazardous weather outlooks from York to Scranton and down to Philadelphia until about 3 p.m. Tuesday.

It was 13 degrees in York and Philadelphia at 8 a.m.; and 7 degrees in Scranton.

However, wind chill values will be between five below and five above zero in some areas.

Philadelphia’s new mayor Jim Kenney declared a “code blue” until 3 p.m., urging residents to stay indoors, limit exposure to the elements and check on elderly neighbors.

Southeastern Pennsylvania Transportation Authority says all regional rail and some subway and trolley lines are delayed due to the cold weather and related power issues.

Temperatures will warm up by afternoon.

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