(CMR) Subtropical Storm Debby has formed in the open Atlantic Tuesday with the expectation of not surviving beyond a few days, according to the latest advisory from the National Hurricane Center.
The storm, which has been monitored for the last few days, was located 1160 miles west of the Azores in the northern Atlantic Ocean, according to the 11 am advisory from the NHC. It was moving north at 16 mph with maximum sustained winds of 40 mph. The minimum central pressure was 1008 millibars.
The storm began taking subtropical – not-quite tropical – characteristics, and was named Tuesday morning. There is a potential for fully tropical characteristics, according to the NHC’s discussion, but significant strengthening isn’t expected. The center of the storm is expected to move away from warmer ocean waters.
The storm is expected to continue its northward trek over the next day or two. A trough is then forecast to take Debby on a northeasterly track afterward, but fall apart afterward.
Debby is the fourth-named storm of the season. August, climatologically speaking, is a month when the Atlantic basin begins to see an increase in tropical cyclone activity with the peak of the season being around Sept. 10.
Subtropical Storm Debby Advisory Number 1
NWS National Hurricane Center Miami FL AL042018
1100 AM AST Tue Aug 07 2018
…SUBTROPICAL STORM DEBBY FORMS IN THE NORTH ATLANTIC…
…EXPECTED TO BE SHORT LIVED…
SUMMARY OF 1100 AM AST…1500 UTC…INFORMATION
ABOUT 1160 MI…1870 KM W OF THE AZORES
MAXIMUM SUSTAINED WINDS…40 MPH…65 KM/H
PRESENT MOVEMENT…N OR 355 DEGREES AT 16 MPH…26 KM/H
MINIMUM CENTRAL PRESSURE…1008 MB…29.77 INCHES.
No significant strengthening is anticipated since the cyclone will soon be moving over cool water and become fully embedded within a larger mid-latitude trough approaching from the west. Debby is expected to dissipate in about 48 hours or earlier.
This will be the only notification issued by the CINWS on this system.