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Severe Weather Threat 4/27-4/28, 2024 - (Saturday, Sunday)

andyhb

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00z Icon (German model) shows the type of potential the Saturday trough has if it develops properly. High end solution for KS/OK.
 

andyhb

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...and now both the GFS and CMC show impressive solutions in the S Plains on Saturday. The way that second jet max slides ESE into the West Coast makes me nervous, especially since that lead wave Thurs/Fri clears out the influence of the sub-tropical jet.
 

Taylor Campbell

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A new look for Saturday on the models today. I expect it will change again potentially towards a less significant look based on EURO control and EURO AI guidance.
 

lake.effect

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I think Saturday has the highest ceiling and, if model trends continue, could possibly justify a high risk.
The machine learning models agree. CSU-MLP maxes out the scale. Look at the huge swath of land under high probability significant weather:
 

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I think Saturday has the highest ceiling and, if model trends continue, could possibly justify a high risk.
The machine learning models agree. CSU-MLP maxes out the scale. Look at the huge swath of land under high probability significant weather:
Agree. Models continue trend , Saturday will be a high risk category ….
 
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Holy :eek: the 12Z NAM for Saturday. TOR to PDS TOR soundings (legit looking ones too, not ones with weird VBV wind profiles or no 3CAPE) from right over my house in southern WI, to northern Kansas, and all down the dryline into OK. Some of that is likely overdone; but even so I haven't seen a run like that in a long time.
Saturday has a legit ceiling. One wrench could be early day crapvection/rain, but will have to see how the models play that as we get closer.
 
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There is some hyperbole by that tweeter. And it is the unreliable NAM at 72* hours out.

The thing that really jumps out at me are the analogs. 4/27/91 OUN, aka Andover/Red Rock - THE signature plains outbreak outside of 5/24/11.

A 4/3/74 sounding. The analogs you usually see from 4/3/74 that pop up on soundings are from MGM (Montgomery, Alabama) outside of all the chaos that day. But this one is matching to Nashville, Tennessee(BNA). Tennessee was squarely in the action during the super outbreak.

I just have a really hard time seeing this event right now even coming close to those days and think the NAM may be a little off the mark here.
 

TheSuckZone

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There is some hyperbole by that tweeter. And it is the unreliable NAM at 72* hours out.

The thing that really jumps out at me are the analogs. 4/27/91 OUN, aka Andover/Red Rock - THE signature plains outbreak outside of 5/24/11.

A 4/3/74 sounding. The analogs you usually see from 4/3/74 that pop up on soundings are from MGM (Montgomery, Alabama) outside of all the chaos that day. But this one is matching to Nashville, Tennessee(BNA). Tennessee was squarely in the action during the super outbreak.

I just have a really hard time seeing this event right now even coming close to those days and think the NAM may be a little off the mark here.
Yeah, we'll see. Every week on YouTube now there are videos all over with "THE STORM OF THE CENTURY IS COMING!". It has gotten pretty out of hand.
 
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Yeah, we'll see. Every week on YouTube now there are videos all over with "THE STORM OF THE CENTURY IS COMING!". It has gotten pretty out of hand.
Seems to be even worse on Twitter. Cherry picking individual model runs and soundings.

At this point I’m just Trying to see if there is a cap on any of the soundings from earlier in the day to keep any crapvection from going up.
 
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There is some hyperbole by that tweeter. And it is the unreliable NAM at 72* hours out.

The thing that really jumps out at me are the analogs. 4/27/91 OUN, aka Andover/Red Rock - THE signature plains outbreak outside of 5/24/11.

A 4/3/74 sounding. The analogs you usually see from 4/3/74 that pop up on soundings are from MGM (Montgomery, Alabama) outside of all the chaos that day. But this one is matching to Nashville, Tennessee(BNA). Tennessee was squarely in the action during the super outbreak.

I just have a really hard time seeing this event right now even coming close to those days and think the NAM may be a little off the mark here.
No doubt. Saturday stands a better than equal chance of being a high risk day regardless if its not the storm of the century .
 

lake.effect

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Not to cherry pick soundings (soundings are just guesses after all), but 18z NAM has the most extreme soundings for tornadoes I have ever seen on that model. Off the charts.

Really more eye candy than anything since I do not expect those will verify.
 

jiharris0220

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Not to cherry pick soundings (soundings are just guesses after all), but 18z NAM has the most extreme soundings for tornadoes I have ever seen on that model. Off the charts.

Really more eye candy than anything since I do not expect those will verify.
Seriously though, those soundings between 78-84hrs are by far the most favorable I’ve seen this year so far from the Nam.

I don’t doubt the kinematics being that volatile, but CIN is still a big limiting factor.
 
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