Pretty hot again today and tomorrow, all eyes on Invest98L: Southern MS/AL/LA Weather Forecast – 9/21/22

Author: || Published: 9/21/2022 at 5:49am

I’ve been trying to just skim over the fact that it is going to be so hot today and tomorrow, hoping that model guidance would come back slightly cooler, but no dice!

Buckle up, today, friends. It going to be hot. Same with tomorrow.

Today’s projected high temperatures from the HRRR model // Courtesy: Pivotal Weather

The big ridge of high pressure that has been in place will stay in place in the coming days. While it will shimmy around and eventually loosen its grip a bit as we close out this week, it will still allow us to tag the 90s nearly every day through the weekend.

By Friday the map will look a bit cooler. Ridging will start to slide west as two systems glide by to the north.

500mb map for Friday from the ECMWF // Courtesy: Pivotal Weather

Then all eyes turn to what may – or may not – be brewing in the tropics.

General path of tropical interests // Courtesy: nhc.noaa.gov

Invest 98L is sitll the top priority for folks stateside. That is the red area down in the Caribbean. That is a wave that will be moving into and through the Caribbean as we move through the week. So far it continues to look rather disorganized – and close to land.

Invest98L on infrared // Courtesy: Tropical Tidbits

Notice how close to South America it is. Unless it starts gaining latitude quickly, it may have a very short life. And all of this interest may be for nothing. Model guidance, though, does suggest that this will gain latitude and eventually organize.

How much and where it will eventually go are still TBD.

DAY TO DAY FORECAST

Today
Sunny. Highs in the mid 90s.

Tonight
Clear. Lows around 70.

Thursday
Sunny. Highs in the upper 90s.

Thursday Night
Clear. Lows in the lower 70s.

Friday
Sunny. Highs in the lower 90s.

Friday Night
Clear. Lows in the mid 60s.

Saturday
Sunny. Highs in the lower 90s.

Saturday Night
Mostly clear. Lows in the upper 60s.

Sunday
Sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent.

Sunday Night
Partly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 20 percent.

Monday
Mostly sunny with a slight chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 20 percent.

Monday Night
Mostly clear. Lows in the lower 60s.

Tuesday
Sunny. Highs in the lower 80s.


Author of the article:


Nick Lilja

Nick is former television meteorologist with stints in Amarillo and Hattiesburg. During his time in Hattiesburg, he was also an adjunct professor at the University of Southern Mississippi. He is a graduate of both Oregon State and Syracuse University that now calls Houston home. Now that he is retired from TV, he maintains this blog in his spare time.