Frost and Freeze - Another Chance

As the rain showers still linger... we'll see some evaporative cooling that will help drop temperatures down into the low 30s. There are frost advisories for Tripp and Mellette counties and freeze warnings for all the other counties to the west (in the turquoise). Expect a very chilly night across the area and we'll probably see more of these tomorrow night as well.

Just a quick summary on evaporative cooling: when rain falls... it starts to evaporate. Evaporation is a cooling process, it's the main reason feel cooler when we sweat. First of all, to Basically everything wants to be in balance, if something is hotter than the air around it, it wants to cool down, if something is cooler than the air around it, it wants to warm up. But each has to change temperatures a bit in order to restore that balance. So since sweat or rain is cooler than the air around it, the air must cool down a bit to get to the equilibrium in temperature. The rain/sweat also gets warmer in that process and thus evaporates. Since the air around the rain/sweat gets cooler, it makes our temperatures/bodies cooler.

We'll get a break in the action finally tomorrow before our next round starts up late Sunday night.

Stay warm!
~KDLT Meteorologist Jesse Ritka