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Severe Weather 2026

Glancing at the 12z GFS for this weekend (across AL), here are some observations I have.

1.) The main shortwave is very south, a good deal farther south than the 06z run. With forcing that far south, I suspect you will get a coastal precip shield. If you get a coastal precip shield - that will shunt northward transport of moisture.

2.) The timing isn't the most conductive for a robust severe threat, coming through the state in the overnight hours.

3.) The prominent warm nose at 700mb is keeping mid-level lapse rates pretty anemic.

That being said, I can definitely see a damaging wind threat and an isolated spin up tornado or two. Hopefully we can get the spread amongst guidance to come down some.
 
Welp. Both the GFS and euro have nasty weather. 18z GFS is a decent look, too early for magnitude I think, but I'll probably pull the trigger tonight. When I get some time. Both the 12z euro and 18z GFS have similar low placements. Maybe not the most favorable for our area but I think will see some sort of severe weather.
 
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Could someone help me find a good website for the TNI values? (Both current and archived)
Pretty late to this, but here's a real good resource for everything ocean related. Current TNI is +0.42

 
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GFS still teasing a potentially potent-looking setup (pending thermodynamics improving somewhat from currently depicted saturated columns and poor lapse rates) abnormally far north for Thursday the 19th as of the 0Z run.
 
Made another edit with my chase footage and the music video for Van Halen's "Humans Being" from the Twister soundtrack ahead of the 30th anniversary of the song and film's release.


I'm always deeply conflicted by how much nostalgia I have for that song and how not-good the song itself actually is. I'll stick to "Child in Time" for Twister nostalgia.
 
I'm always deeply conflicted by how much nostalgia I have for that song and how not-good the song itself actually is. I'll stick to "Child in Time" for Twister nostalgia.

I also like that one and "Long Way Down."
 
With the inevitable systems that will be potentially impacting what looks to be a wide variety of areas in this 500 mb pattern, I feel like I see the operational Euro tending to be more conservative with the appearance of systems, while the others (in particular, op GFS) tend to overestimate how robust they look this far out. It seems like that's the opposite right now - the 12z operational Euro has some big troughs swinging through over a week out, with some very robust looking systems, while the GFS seems like it isn't overly impressed.

Of course, they are the operationals. The ensemble Euro is much more favorable looking geometrically than the GFS ensemble is too, at least in my non-expert opinion. Since the Euro tends to be slightly better than many of the other models, I have more faith in there being severe weather across the US than I normally would be this far out, potentially a lot of it, and maybe even with a significant severe event mixed in. When the troughs become better defined by all models, we'll see what the consensus becomes.
 
I feel better about there being a more legit/robust severe weather threat around or just after the 20th of the month.
 
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