System off NC coast?

[tolakram]

Lows like this happen all the time in the colder season, and they can be quite strong.

[CaneMaster]

I donno, it is pretty interesting though...

[CaneMaster]

This is definitely warm core and has recently acquired subtropical characteristics. Note how the center has detached from the main frontal zone/warm conveyor belt on satellite loops. Also, look at the cyclone phase diagram:

Like he said....

[Tampa Bay Hurricane]

With jconsor's input, I think this was subtropical easily- just like the unnamed
subtropical system about a month or so ago...
The mid-atlantic has had many systems this year- 2 unnamed subtropical
systems, TS Hanna, TS Cristobal...4 storms in a year...wow.

the unnamed storm about a month ago was frontal!. Nothing subtropical about a frontal cyclone

I am confused:
I can see how that system a month ago was frontal in the beginning, but
How was it frontal once it detached from the front and moved west into the mid atlantic? I thought
frontal systems went NE not W? I don't mean to sound bad...I'm just confused...

[Tampa Bay Hurricane]

Analysis of a system off the Midatlantic last week shows it had a warm core,
meaning it was a subtropical storm AT one point.

Last weeks unnamed storm:

This is definitely warm core and has recently acquired subtropical characteristics. Note how the center has detached from the main frontal zone/warm conveyor belt on satellite loops. Also, look at the cyclone phase diagram:

[HURAKAN]

I have not seen a satellite image that shows a subtropical system. If this system was subtropical, then the one that affected the Carolinas was purely tropical.

[CaneMaster]

Strange how it look's like this on visible but water vapor and infra-red aren't picking up much on it, is this a low level circulation?

This FELT just like a full on tropical system.
Not saying it was just saying it spun off the coast of me and it warmed up significantly then as it rolled further away the skies cleared completely it was like warmest it had been in a while.......
I just know it started it's spinning in the area of warmer SST's off the coast of the carolina's where it could have been warm enough to develop into a tropical system, again I'm not saying it was I just know it FELT like it was fully tropical, it didn't feel sub-tropical, and definately wasn't a Nor'Easter...... The picture above show's the following day after I spotted it and it looked pretty nice on this visible....

[CaneMaster]

Just curious as to why it was never mentioned anywhere in the media or on the boards until I posted on it....... did bring us alot of rain and flooding in some area's, winds were definately stronger than hanna or the previous un-named storm, not saying stronger over-all just stronger were I am located, which would make sense since it spun off the coast for a day....

[HURAKAN]

I have had strong showers during the passage of a cold front through South Florida, similar to what we get in the summer. Does that mean the cold front was tropical? No.

I have advocated many times for systems that looked to be acquiring or have acquired subtropical characteristics and the NHC has not payed much attention until the system was able to become tropical. Usually I'm the first to create a topic about a cut-off low in the North Atlantic that is producing some convection and I always say that we need to keep an eye for possible development. But this system was never able to do anything to become subtropical or tropical. A non-tropical system that doesn't produces convection near or over the area of low pressure for an extended period of time can't become subtropical or tropical. Period. This system was never able to develop convection over or near the center of low pressure for an extended period of time. It looked like a remnant low pressure for most of its life.

[Tampa Bay Hurricane]

Looks like a tropical storm undergoing shear imo

Well Defined low level circulation- but likely colder/not as tropical by this time.



Also Jconsor's analysis as warm core- I really think it was a tropical storm at one
point