A cold front west will move rather rapidly and should be along a line from near Picayune to Houma line by 9 am and along a line from Pascagoula to Grand Isle by noon today. The front will help keep moisture flowing over the cooler air keeping mostly moderate to heavy showers going a good part of the day. There will be a chance of some thunderstorms with this but they won’t be widespread and will be fewer as the day moves forward. This will bring a cool rain that could be moderate or heavy at times.
Rain moves out for most by dark and for locations along the coast after dark. The next thing to mention will be the northerly winds. The wind and rain will make things feel cooler today after the front passes and some gusts to 25 or even 30 mph is not out of the question especially for those along the south shore.
The next surface low starts to develop over the western gulf Saturday and begins to track toward our area by Sunday affecting the area Sunday night through Monday night. There is a potential that this system could have some fairly heavy prolonged rainfall associated with it starting Sunday night and lasting well into Monday, depending on exactly where the surface low moves across the area. Those along and south of the frontal boundary would get some of the southerly winds and a rapid warm up before temps dive again as the low passes while those north of the boundary would stay in a cool rainy pattern throughout the event. We should also observe some of the coldest temps so far this season next week. For starters, Saturday does not get out of the 50s. But that’s not bad compared to Tuesday when half the area may not even see 50F. Tuesday night could be the first freeze of the season for at least the northern tier of counties.