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Severe WX April 3rd-5th, 2023 (South, Southeast, Ohio Valley)



This is relevant in terms of HRRR forecasts for tomorrow and its degree of mixing + high LFCs/LCLs.

Does this mean HRRR is showing lower Dew points vs the RTMA? And the real time obs are showing higher which could result in those LCL issues you previously discussed
 
Was there any severe weather today? I missed it lol
2 tornadoes reports in Southeast Alabama. Otherwise, just 37 damaging wind reports and 10 hail reports.
 
Both the NSSL and ARW have a monster supercell tracking from NE MO into W IL tomorrow afternoon in an incredible parameter space.

Fs1l29jakAEXlZc


NSSL explicitly resolving a hook echo and intense mesocyclone.
 
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Both the NSSL and ARW have a monster supercell tracking from NE MO into W IL tomorrow afternoon in an incredible parameter space.

Fs1l29jakAEXlZc


NSSL explicitly resolving a hook echo and intense mesocyclone.
Honestly, I can't remember seeing a short range model depicting a supercell that well.
 
Both the NSSL and ARW have a monster supercell tracking from NE MO into W IL tomorrow afternoon in an incredible parameter space.

Fs1l29jakAEXlZc


NSSL explicitly resolving a hook echo and intense mesocyclone.
You can literally see the hook on the supercell in the model guidance. How often does that happen?
 
Both the NSSL and ARW have a monster supercell tracking from NE MO into W IL tomorrow afternoon in an incredible parameter space.

Fs1l29jakAEXlZc


NSSL explicitly resolving a hook echo and intense mesocyclone.

In the frame valid for 22Z, is it actually resolving the mesocyclone as a 985mb mesolow?

Meanwhile, FV3 in full-on supercell printer mode across the IA/MO/IL intersection as per the tweet linked above.
 
RRFS chose violence.

That's a pretty funny frame. Taking a quick glance at soundings, however, appears to show that the environment around most of those supercells is not favorable for tornadoes.

EDIT: I just want to clarify that I don't mean this statement as reflective of the severe weather risk overall tomorrow, just commenting on that particular frame of the RRFS, which I can see is starting to gain traction on Twitter as well lol
 
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