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Severe WX Severe Threat 17-18 March 2021

sak

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Time to stick a fork in this for areas north of I-20. It's done. Seems unlikely even areas like Selma, Montgomery, Alex City or points south see too much more either, but can't rule it out for them just yet.
 

Equus

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Portion of the line on the Walker/Jefferson line getting some kinks that might be worth watching
 

cincywx

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i understand the parameters in place may have warranted it, but issuing a new PDS watch for east MS/AL less than two hours ago may be a bit of a headscratcher. it has already been dropped for the east MS counties.
 

TH2002

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Will the main tornado threat tomorrow come from embedded tornadoes within the squall line or isolated supercells ahead of or behind the line?
 

buckeye05

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I see I didn’t miss too much today lol. Glad there haven’t been any fatalities. Looks like some pretty intense damage did occur in Chilton County, AL though.

Outbreak isn’t over until late tomorrow night into the morning after, however. Sometimes the east coast, “day 2” portion of a Dixie outbreak is more potent than expected. We’ll just have to see.
 
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I believe three problems kept this from being a lot worse.
1. timing. The squall line was suppose to move through Birmingham around 2 am and it’s coming through around 9:30
2, a lot more storms popped up today and earlier than expected, so the atmosphere didn’t get as juiced as it could have.
3. the low level jet didn’t come in on time since the storms were way ahead of schedule.

Still a very bad day, but we are fortunate and it could of been much worse. It’s still not over, but I’m happy that it wasn’t as bad as expected for most.
 

sak

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i understand the parameters in place may have warranted it, but issuing a new PDS watch for east MS/AL less than two hours ago may be a bit of a headscratcher. it has already been dropped for the east MS counties.
Yeah, that was pretty dumb imo. Made no senseto me at the time and makes less sense now.

I understand the social science standpoint that downgrading risk areas, or moving places from a PDS watch to a regular watch might make people let their guard down... but at some point, you have to forecast on what is actually happening.

On the last convective outlook, I would have completely removed the high risk and maybe even completely removed the medium risk . I'd have gone with medium or enhanced for west central AL, enhanced around that and slight risk for the TN valley
 
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