Should we up the line for tropical depression?

[Matt-hurricanewatcher]

This quastion needs to be asked. At times a depression is a closed surface cirualtion with some flare up of convection, near or over its LLC.
I'v seen systems when the recon got into them they found a closed LLC with pockets of 25 to 30 mph winds then boom we got a depression. Yet others a sheared area of low pressure with most of it convection over on the western or eastern side. Boom yet another depession or maybe a tropcial storm? Arlene,Alison, many more.

While systems over in the Eastern Pacific need to have a large area of convection over there LLC. If they ever wish to gain tropical depression. Let less tropcial storm. Maybe systms like Arlene,Alsion,Hanna,Grace. In which where sheared systems not much different then our friend tropical depresssion 10.

We have just got done watching a system named Irene that moved across the central Atlantic. In which had no visible LLC on quickscats. A sheared mess should I say? Then comes along a depression that has a clearly defined LLC for the last 3 days. In when it was upgraded had 40 knot flags. I'v also heard it is also true that t numbers do not do well with sheared systems.

So what should we do?

I say switch to the Eastern Pacific stardard in which the system has got to have a clearly defined area of convection right over a well defined LLC. NO more Alisons or Graces or the other sheared up one sided storms.

Should we call those systems subtropical. For the fact that they are getting alot of there energy from upper level shearing?


Thank you for all your comments in Answers to this age old quastion.

[rainstorm]

makes sense to me. what was the point of calling td10 a depression?

[jrod]

It was pretty well orgainzed just before they upgraded, with what seemed like a lot of potential to strengthen. After that the thing just fell apart.

[wxwatcher91]

but you mentioned Irene... yes it was a sheared mess for a while but it also became a category two hurricane when it got out of the sheared mess... you have to remember that the NHC doesnt necessarily go strictly by the guidelines of TD and TS and cat 1,2,3,4, and 5. the NHC will look ahead to the future and if they see that strengthening is imminent then they will likely keep a storm a TD or TS instead of downgrading it to a wave... think what if Irene struck the coast. what if the NHC downgraded Irene to a wave because it was such a sheared mess... the public opinion of the storm would diminish and people might not be ready for the cat 2 hurricane that would later come of Irene... Andrew for example: the NHC found max winds less than TS strength at one point but they chose NOT to downgrade it to a depression so public opinion of Andrew would not fall... and good thing the NHC did what they did right?

[weatherwoman]

which one was it that skipped depression stage and went righ to a storm