Subtropical system near Azores

[JonathanBelles]

I didnt start looking at this system until TheEuropean brought it up. I agree that it should be mentioned by the NHC likely as STS Noel.

[RL3AO]

BTW, SST's appear to be 19-20C.

[JonathanBelles]

I sent a message to the NHC (Beven) to see if they are watching it.

[TheEuropean]

what makes it subtropical? the last time we had one of these somebody said it was because it was a cold-core system but i dont really understand what that means...i'd appreciate some help with that

Have a look at the TC FAQ: http://www.aoml.noaa.gov/hrd/tcfaq/A6.html

[Ed Mahmoud]

That does look like an eye, doesn't it.

[Ed Mahmoud]

I remember 1980's Hurricane Charley formed in a similar way, from the low at the end of an occluded front East of the Carolinas, on the 'cold' side of a weak frontal boundary. Started as a STS, eventually become an 80 mph hurricane.


I have seen winter storms that have formed apparent 'eye' features when viewed with visible satellite. On IR, however, all the cooler cloud tops are North of the 'eye'.

Not the best example below from Blizzard of '78


The Blizzard did create hurricane style coastal damage.

[Ed Mahmoud]

Better example of apparent eye feature in solidly non-tropical cyclones.

Presidents Day Snowstorm

[HURAKAN]

Side note: Nice convective system affecting central Italy.

[TheEuropean]

Now it's Invest 95L, new in the active storm forum.