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Tropical 2021 hurricane season thread

Hold on, folks, the HH GEFS is looking to be a wild one again.

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All of the 12Z model runs look about as tame as one could hope for during the second climo peak with regard to their suggested CONUS TC threat levels through the end (10/18). But as @pcbjr always reminds us, they're just unreliable cartoons. So, don't bet the farm on their quietness and stay tuned.
 
12z GEFS as regards CONUS: other than hints that there MAY be a rogue TC form offshore the SE US that mills around similar to the 12Z GFS at midmonth due to being stuck underneath a strong NE US ridge, the run is still about as quiet one could hope for during this secondary climo peak all of the way to the end of the run fwiw.
 
12z GEFS as regards CONUS: other than hints that there MAY be a rogue TC form offshore the SE US that mills around similar to the 12Z GFS at midmonth due to being stuck underneath a strong NE US ridge, the run is still about as quiet one could hope for during this secondary climo peak all of the way to the end of the run fwiw.

Yeah the gfs op run was interesting to say the least. The gfs has been persistent about building some unsettled weather over the western Atlantic for many runs.

I wonder how the development over the big islands would move of that low didn't pop off the SE coast.

Nothing looks threatening but we have lots of time to watch this mess off the southeast coast.
 
The 12Z EPS is about as quiet as you can have it during this often active period. Does that mean it will actually be quiet? I find it hard to believe in La Nina with very warm SSTs, especially in the Caribbean, but we'll see. The area off the SE coast may still have to be monitored with strong ridging to the north (ROTW pattern).
 
If that NE high can get a little further offshore that late development over Puerto Rico may have a harder time scooting out
 
First time in recorded history of a legit hurricane landfalling in Oman.....places got 4-5 YEARS worth of rain in 12-18 hrs.....



 
The last two runs of GEFS, 12Z and 18Z, suggest an increasing/potential threat to S FL ~10/19-23 from a W Caribbean genesis near 10/18-21. Looking back at history, ~10/17-21 has been quite the active period frequency-wise in or near S FL. So, something to monitor for especially S FL.
 
The 0Z GEFS also has a good bit of activity for in and near the same period.
 
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