Warm Vernal Equinox (aka Spring) and Continues Through Next Week – Weekly Outlook for South MS/LA/AL 3/20/26

We’re starting Spring off not with a bang, but very quiet! And warm! It’s going to be very dry and warm for the next several days and that won’t really change much due to a few factors that I’ll talk about. The good news is that the warmer weather will eventually cool back down to more “average” temperatures by next weekend, so more good weather to enjoy!



Today

A few high level clouds are possible this morning, otherwise it’s going to be sunny and warm today! Temperatures will be in the upper 70s by the mid-afternoon with winds coming out of the south around 5-10mph. Overnight, we’ll fall into the mid 50s with clear skies.



Tomorrow

Tomorrow will be more of the same except we warm up into the low 80s. Winds will shift towards the southwest around 5-10mph with some clouds in the morning. Otherwise, another beautiful day! We’ll fall into the mid 50s overnight with clear skies.

Sunday

If you’re heading to church in the morning, you can dress yourself and the kids up in short sleeves since the morning will start off pretty mild! It’ll be in the mid 60s-low 70s for the mid-morning services. Winds will pick up a bit in the afternoon to around 10mph from the southwest. Otherwise, it’s going to be another sunny day ahead with a high in the low 80s. Overnight, temperatures will reach the upper 50s again.

Why So Dry?

If you’re like me and you’re wondering “why are we getting such good weather for such a long period?” I can answer that question! The upper atmosphere will answer part of that question. Looking at the map above, you’ll notice a large amount of orange on that map across the continental US. Those are height anomalies, and this case, there is a large amount of higher values in the 500mb range. There’s a lot of higher height values and this will move very slowly from the Pacific Coast to the south central US and span across most of the continental US. What a lot of high pressure in a concentrated area will do is limit convection and increase temperatures. If you’ve ever heard of the “ridge of death” that people talk about during the dog days of Summer, this is similar to that. When we had our drought in 2023, we had a large ridge and a large surface high pressure system that inhibited any sort of daily thunderstorm development we would usually have and increased temperatures due to the abnormally high pressure.

The good news is that this won’t last forever. The atmosphere moves in waves, and eventually this high pressure system will move (so far it looks like it moves towards Canada!) and be replaced by a trough over the southern US. That being said, we can expect a lot of dry weather, and with dry weather also comes fire weather. A few fronts are going to move in by next week, however they won’t bring in much rain, if any, so we have to be careful about burning near the end of the month.

Next Week

Next week will be more of the same with more warm temperatures and mild nights ahead. Temperatures will average in the low to mid 80s during the day and mid to upper 50s at night. Two cold fronts are going to move in by Monday and Friday, however they won’t bring much of a chance for rain. There will be another front that moves in next weekend that will help with cooling temperatures down to start off the beginning of the week after next.





Author of the article:


Noah Gower

Meteorologist residing in Hattiesburg, MS. Loves skateboarding, bass guitar/music, and a good motorcycle ride. Currently working as an AV Tech.

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