07 August 2018

Subtropical Storm Debby forms in far north-central Atlantic

The fourth named storm of the 2018 Atlantic hurricane season, Debby, has formed about 1000 miles west of the Azores.  It has been a persistent mid-to-upper-level feature for about a week now, just drifting around, but it finally established a surface circulation and strong enough winds to earn an upgrade to a subtropical storm.  Note that as of now, it lacks the structure to be a fully tropical system. However, its time will be very limited -- it will pass over increasingly cold water and get absorbed into an approaching trough within a couple days.

Debby is the third storm this season to be subtropical... Alberto began its life as a subtropical cyclone on May 25th, and the second half of Beryl's life was subtropical.  Climatologically, the 4th named storm forms on August 22, so Debby is about two weeks ahead of par.  In terms of ACE (Accumulated Cyclone Energy), the season is at 145% of average for this date.

Aside from Debby, the Atlantic is quiet.  This time of year, we start looking to Africa for incipient waves/disturbances, but the water temperature in the deep tropical Atlantic between Africa and the Lesser Antilles remains cooler than average, which will be a suppressing factor for tropical cyclone activity there for a while.



  1. Brian,

    When I receive your email, the most recent one below:

    Brian McNoldy has sent you a link to a blog:

    Blog: Tropical Atlantic Update
    Post: Subtropical Storm Debby forms in far north-central Atlantic
    Link: http://bmcnoldy.blogspot.com/2014/10/subtropical-storm-debby-forms-in-far.html

    The Link is not a link. The text appears but the underlying code is missing to make it a link. I cannot click on it to go to the blog. I must copy the text after Link: and paste it manually into my address bar. I use Thunderbird and gmail and have not had this problem with other email links.

    As an experiment I forwarded your email to myself but before sending it I highlighted the text after Link: and used Thunderbird to make it a link. A normal thing when creating an email with a link in Thunderbird. This worked fine. I received the modified email and the link was highlighted in blue as expected and clicking on it took me to your blog.

    Is there a problem on my end or yours.

    H Davis

  2. This can be a problem depending on the email client. When I receive it using Thunderbird, it is just plain text (no clickable link), but I receive it using Gmail, it comes as a clickable link.
    When I send the post out via Blogger's "Email Post" feature, that is the step that does the formatting (or lack thereof) of the message.
    Perhaps something on here will be helpful?
    Sorry for the inconvenience!