• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

Weatherboy

Weatherboy Weather News, Maps, RADAR, Satellite, and Forecasts.

  • Local
  • Earth Science News
  • RADAR
  • Current Warnings
  • Satellite
  • Current Maps
  • Forecast Maps
  • Video

Subtropical Depression Becomes Tropical

by Weatherboy Team Meteorologist - April 20, 2017

The first Tropical Depression of the 2017 Atlantic Hurricane Season has formed.
The first Tropical Depression of the 2017 Atlantic Hurricane Season has formed.

The National Hurricane Center has declared in their latest advisory that Subtropical Depression #1 has transformed into Tropical Depression #1. This is the fifth tropical depression (or stronger) tropical cyclone in the Atlantic hurricane basin on record in April. The Atlantic Hurricane Season doesn’t officially start until June 1.


In the latest update, the National Hurricane Center says Tropical Depression #1 was near latitude 36.1 North and longitude 40.0 West. The tropical depression is moving toward the northwest near 14 mph and this general motion is expected to continue until dissipation. Maximum sustained winds are near 35 mph with higher gusts. The estimated minimum central pressure is 996mb or 29.42″ of Mercury.

The tropical depression is forecast to be absored by a large extratropical low pressure system moving through the central Atlantic; as such, Tropical Depression #1 is likely to dissipate later tonight or tomorrow. Once it does, the National Hurricane Center will cease issuing advisories on it.




The overnight runs of the major American (GFS) and European (ECMWF) global weather forecast models show the the depression persisting as a well-defined, shallow low pressure system into Friday before it is absorbed by the aforementioned larger extratropical low. The combination of decreasing sea-surface temperatures and increasing southwesterly vertical wind shear ahead of the large extratropical low should act to steadily erode the associated convection, resulting in the depression weakening to a remnant low
pressure system by tonight, if not sooner.

Morning forecast track of the system from the National Hurricane Center.
Morning forecast track of the system from the National Hurricane Center.

The 2017 Atlantic Hurricane Season doesn’t officially start until June 1, but subtropical and tropical cyclones do pop up from time to time during the off-season. Leading hurricane forecasters believe this season will be slightly less active than normal; however, they also stress that it takes just one storm to create significant loss of life and property. Because this Subtropical Depression never became a named storm, the first named storm of the season will continue to be Arlene; the full list of names is here.

Primary Sidebar

Sponsored Ad

Search

Latest News

  • National Hurricane Center Expects Tropical Storm Dalila to Form Today
  • Houston is Ground Zero For Flooding Event
  • Legendary TV Meteorologist Who Appeared in “Twister” Dies
  • Earthquake Rattles Los Angeles
  • Tropical Storms Barbara and Cosme Forecast to Weaken
  • Barbara Becomes Hurricane; Cosme Will Become One Soon Too
  • Tornado Risk Today in Pennsylvania, New York, Ohio, West Virginia, Mississippi, & Alabama
  • Tornadoes Possible in Delaware, Maryland, and Virginia Sunday
About | Careers | Contact | Contests
Terms | Privacy | Ad Choices
Weatherboy is a (R) Registered Trademark of isarithm LLC, All Rights Reserved.
All content herein is Copyright by Isarithm LLC 1997-2022