I looked at every violent tornado on the NEXRAD archive and noticed something.
Almost all of the parent supercells benefited from a favorable mesoscale interaction (nudger, merger, OFB, etc).
IMO, most individual discrete cells CANNOT produce sigtors without external help.
Almost all of the parent supercells benefited from a favorable mesoscale interaction (nudger, merger, OFB, etc).
IMO, most individual discrete cells CANNOT produce sigtors without external help.
December 3, 2025 at 6:42 PM
I looked at every violent tornado on the NEXRAD archive and noticed something.
Almost all of the parent supercells benefited from a favorable mesoscale interaction (nudger, merger, OFB, etc).
IMO, most individual discrete cells CANNOT produce sigtors without external help.
Almost all of the parent supercells benefited from a favorable mesoscale interaction (nudger, merger, OFB, etc).
IMO, most individual discrete cells CANNOT produce sigtors without external help.
-convection more than tilted negative troughs due to greater separation between 500 and 850 mb (see below) wind vectors.
That was clearly the case today.
Strong tornadoes are not uncommon in southern Brazil/northern Argentina, but major (F3+) strikes on cities are very rare.
That was clearly the case today.
Strong tornadoes are not uncommon in southern Brazil/northern Argentina, but major (F3+) strikes on cities are very rare.
November 8, 2025 at 1:58 AM
-convection more than tilted negative troughs due to greater separation between 500 and 850 mb (see below) wind vectors.
That was clearly the case today.
Strong tornadoes are not uncommon in southern Brazil/northern Argentina, but major (F3+) strikes on cities are very rare.
That was clearly the case today.
Strong tornadoes are not uncommon in southern Brazil/northern Argentina, but major (F3+) strikes on cities are very rare.
Nearby soundings show extremely large lower-level hodographs in the region, coupled with some dry air aloft, which would help offset and prevent an extremely crowded storm mode.
The setup was caused by a large, broad zonal trough. Zonal troughs tend to favor discrete-
The setup was caused by a large, broad zonal trough. Zonal troughs tend to favor discrete-
November 8, 2025 at 1:58 AM
Nearby soundings show extremely large lower-level hodographs in the region, coupled with some dry air aloft, which would help offset and prevent an extremely crowded storm mode.
The setup was caused by a large, broad zonal trough. Zonal troughs tend to favor discrete-
The setup was caused by a large, broad zonal trough. Zonal troughs tend to favor discrete-
A major, deadly tornado struck the southern Brazilian town of Rio Bonito do Iguaçu this afternoon, causing horrible (F3/F4) damage and leveling multiple homes.
There are reports of fatalities.
This is one of the worst SHEM single-city tornado hits in a LONG time.
There are reports of fatalities.
This is one of the worst SHEM single-city tornado hits in a LONG time.
November 8, 2025 at 1:57 AM
A major, deadly tornado struck the southern Brazilian town of Rio Bonito do Iguaçu this afternoon, causing horrible (F3/F4) damage and leveling multiple homes.
There are reports of fatalities.
This is one of the worst SHEM single-city tornado hits in a LONG time.
There are reports of fatalities.
This is one of the worst SHEM single-city tornado hits in a LONG time.
Typhoon Fung-Wong appears to be struggling with dry air intrusions from the north this morning, despite the strong ULAC aloft (evidenced by great outflow).
Recent convective bursts over the center suggest that the storm is fighting back strongly, but it has a long way to go.
Recent convective bursts over the center suggest that the storm is fighting back strongly, but it has a long way to go.
November 7, 2025 at 5:40 PM
Typhoon Fung-Wong appears to be struggling with dry air intrusions from the north this morning, despite the strong ULAC aloft (evidenced by great outflow).
Recent convective bursts over the center suggest that the storm is fighting back strongly, but it has a long way to go.
Recent convective bursts over the center suggest that the storm is fighting back strongly, but it has a long way to go.
This is an extremely ominous radar image.
That part of China is very densely populated.
Major typhoon #Ragasa will make landfall there soon, where it will bring high-end and widespread storm surge (given the typhoon's strong and broad core) to these areas.
That part of China is very densely populated.
Major typhoon #Ragasa will make landfall there soon, where it will bring high-end and widespread storm surge (given the typhoon's strong and broad core) to these areas.
September 23, 2025 at 3:20 PM
This is an extremely ominous radar image.
That part of China is very densely populated.
Major typhoon #Ragasa will make landfall there soon, where it will bring high-end and widespread storm surge (given the typhoon's strong and broad core) to these areas.
That part of China is very densely populated.
Major typhoon #Ragasa will make landfall there soon, where it will bring high-end and widespread storm surge (given the typhoon's strong and broad core) to these areas.
Howdy!
I'm Sekai. I am currently an Atmospheric Sciences student at Georgia Tech, and plan to graduate in 2027.
I love researching, predicting, and analyzing extreme meteorological phenomenon. I also love competitive swimming, photography, the Baltimore Ravens, and hanging out with friends.
I'm Sekai. I am currently an Atmospheric Sciences student at Georgia Tech, and plan to graduate in 2027.
I love researching, predicting, and analyzing extreme meteorological phenomenon. I also love competitive swimming, photography, the Baltimore Ravens, and hanging out with friends.
October 17, 2024 at 4:26 PM
Howdy!
I'm Sekai. I am currently an Atmospheric Sciences student at Georgia Tech, and plan to graduate in 2027.
I love researching, predicting, and analyzing extreme meteorological phenomenon. I also love competitive swimming, photography, the Baltimore Ravens, and hanging out with friends.
I'm Sekai. I am currently an Atmospheric Sciences student at Georgia Tech, and plan to graduate in 2027.
I love researching, predicting, and analyzing extreme meteorological phenomenon. I also love competitive swimming, photography, the Baltimore Ravens, and hanging out with friends.