A second February cold front will assail Florida this week on the heels the previous punch of winter, which was still challenging records Tuesday with lingering frigid air.

The county previously opened cold-weather shelters during record-breaking cold weather that struck over the weekend of Jan. 31. Temperatures dropped to the coldest in more than a century. The temperature at Palm Beach International Airport dropped to 30 degrees on Feb. 1, breaking the previous daily record of 36 degrees in 1909.

Cold fronts are not created equally — some are weak and others are very strong. Here are the factors that can determine the strength.

A cold front will sweep through Thursday night, shifting winds to the north and beginning yet another round of windy and colder weather in Houston.

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Florida’s rare cold snaps can leave iguanas frozen and falling from trees. Here’s the science behind the phenomenon and what it means for ecosystems.

A weak cold front is moving across eastern New Mexico Tuesday night, causing gusty winds along the Texas border.

BACK HERE AT HOME, THE FOCUS ON THE FORECAST THIS WEEK HOPING IT DOESN’T RAIN ON OUR PARADE DOESN’T LOOK THAT WAY. BUT WE’RE WE’RE MIGHT BE IN FOR A TREAT THIS WEEKEND. YEAH. THIS IS WHERE THE METEOROLOGISTS THIS TIME OF YEAR ARE EITHER LOVED OR NOT LOVED.