Florida big breeze warning as bone-chilling 48 hours ahead for 15 countiesThe NWS comments, "Dangerously cold wind chills as low as 7 degrees above possible." ‌The NWS comments, "Dangerously cold wind chills as low as 7 degrees above possible." Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. (Image: NurPhoto via Getty Images)Understanding cold weatherExtreme cold watch: Be Prepared. An extreme cold warning is issued when dangerously cold air temperatures or wind chill values are expected or occurring.