a frost may occur even when air temperatures are just above freezing due to open exposure to the clear night sky, which exposes surfaces to radiative cooling.
There still remains plenty of time for changes in the track of this system. Current trends indicate the main impacts would be gusty winds and the threat of heavy rainfall, leading to the possiblity of flash flooding across the Four State Region.
Knapp said some of the touchdowns could be due to one tornado touching down, then lifting back up and moving some distance and touching back down, but are counted as separate tornados.
Louisiana's scorching temperatures mean it's essential to stay cool and hydrated. Watch out for heat-related illnesses and protect yourself during this heatwave.