April 20th 2025 severe threat

[cg9450]

See? After 7pm. Smh

Where’s the PDS

I think we’re on the cusp of TORE

 

[andyhb]

The velocity signature is not strong enough to trigger a PDS warning or TORE.

 

[UncleJuJu98]

Im confused at no PDS tornado warning. There's obviously a significant tornado going down. And one of the most impressive debris balls I've seen in a while. Maybe the velocity couplet not being super impressive is holding them back?

 

[BayouWeatherGeek]

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[cg9450]

The velocity signature is not strong enough to trigger a PDS warning or TORE.

Ah, cool to learn!

 

[Kds86z]

Im confused at no PDS tornado warning. There's obviously a significant tornado going down. And one of the most impressive debris balls I've seen in a while. Maybe the velocity couplet not being super impressive is holding them back?

At the same time sometimes we have tornadoes that don’t deserve pds and weren’t that strong. I gotta research velocities more..

 

[TH2002]

Weirdly shaped debris signature now, very reminiscent of the Webberville and Grand Blanc EF2's from a while back. Velocity is not overly impressive, so hoping it's not as strong as the debris sig would indicate.

 

[Jacob Aden]

Debris sig looks impressive because of how close the radar is.

 

[SmokeEater]

It's lifted, debris sig is gone.

 

[SmokeEater]

LZK says it's likely it's cycling.

 

[Tennie]

Debris sig looks impressive because of how close the radar is.

I remember at least several occasions where impressive-looking TDSs detected close to radar sites turned out to have been caused by relatively weak tornadoes. Someone ought to study how distance from radar sites affects the intensity of a TDS relative to the intensity of the source tornado.

 

[SmokeEater]

Debris looked to have been lofted to only 3,000-4,000 feet.

 

[Kds86z]

I remember at least several occasions where impressive-looking TDSs detected close to radar sites turned out to have been caused by relatively weak tornadoes. Someone ought to study how distance from radar sites affects the intensity of a TDS relative to the intensity of the source tornado.

Even with an impressive hook presentation?

 

[snostorm21]

Just got back, seems like things may kick off now. Have I missed anything of note since the morning?

 

[jiharris0220]

Even with an impressive hook presentation?

Hook presentation has close to nothing to do with tornado intensity.

 

[Jacob Aden]

Even with an impressive hook presentation?

It can get much worse

 

[Kds86z]

Just got back, seems like things may kick off now. Have I missed anything of note since the morning?

Not really @snostorm21

 

[ColdFront]

Even with an impressive hook presentation?

Yes. I’ve seen literal blobs with hardly no discernible hook produce high end EF3-high end EF4 damage.

Radar proximity also plays a role. I thought Amory was going to be wiped off the map on 2023 with an insane radar presentation. However, it was close to the radar, and while the tornado was an EF3, it wasn’t violent.

 

[UncleJuJu98]

Any damage reports yet?

 

[Kds86z]