A Chilly Monday Morning

May 18th, 2014 at 9:27 pm by under Weather

We had perfect weather for all of the outdoor events going on across Hampton Roads this weekend. Hopefully you had the chance to get outside at some point this weekend. Highs today were in the upper 60s and lower 70s and we saw similar readings on Saturday.

Sunday Highs

Sunday Highs

Even though the weekend is over, we are still going to see nice weather to start the new work week. An upper level disturbance is currently moving off the coast of North Carolina. This upper low is taking all of the rain and clouds with it, so the clouds will be clearing out overnight. Once the clouds clear out, temperatures are really going to drop. Winds will be light and the air is also very dry. Remember dry air warms very efficiently and also cools very efficiently. Tonight is a good night for radiational cooling. This is when a lot of radiation or heat escapes back into space, leading to a cooler night.  On cloudy nights, the heat cannot escape and some of it returns back to Earth, leading to a warmer night. Lows will drop down into the upper 40s to near 50° by Monday morning. Middle 40s are possible across inland locations. The record low temperature at Norfolk International is 46° set back in 1875, so we will be close, but I don’t think we will break any records. However, it will still be unseasonably cool for this time of year.

Lows Overnight

Lows Overnight

We haven’t seen lows in the 40s since the end of April. So if you have your windows open tonight, you may want to shut them if you get cold easily. High pressure is moving in and will dominate our weather on Monday. We will see lots of sunshine tomorrow with highs in the lower 70s. The area of high pressure will start to weaken by Tuesday afternoon. There is a slight chance for a few showers Tuesday night, Wednesday and Thursday. Many spots will stay dry as the chance for rain is only about 30%.

Have a good week!

-Meteorologist Tiffany Savona

 

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