Tag Archives: Tropical Storm Harvey

2017 ATLANTIC HURRICANE SEASON IS 43% DONE!

On this Saturday 19 August we are eleven weeks and two days into the 2017 Atlantic Hurricane Season, which means the ‘official’ Atlantic season is now 43.4% complete. Technically this means we have fourteen weeks and five days left in the season, unless Mother Nature decides to do something different.

More important than how much time is left for the official 2017 Atlantic hurricane season to be over, is the fact that we are approaching what historically  has been the peak of the Atlantic season, the first half of September.

Projected track for Tropical Storm HARVEY, the 8th named tropical cyclone of the 2017 Atlantic hurricane season, projected track (courtesy of the U.S. Naval Research Lab)

The Atlantic has been busy with tropical cyclones so far in 2017, with eight named storms so far; Tropical Storm HARVEY, now in the east-central Caribbean and moving in the general direction of Belize and the Yucatan, is the 8th named tropical cyclone in 2017 in the Atlantic basin.

GOES East infrared satellite image (NOAA) of 08/19/2017 showing tropical storm HARVEY in the Caribbean and several tropical waves following behind all the way to the coast of equatorial Africa

In what could be a possible sign of things to come during the approaching peak of the season, there are several tropical waves and areas of disturbed weather following behind HARVEY to the northeast of Puerto Rico and along ‘hurricane alley’ all the way to the eastern Atlantic waters off the coast of equatorial Africa south of the Cape Verde Islands, which could be seeds for potential cyclogenesis in the basin. A possible contributing factor to such potential cyclonic activity could be the rather warm surface waters along ‘Hurricane Alley’, in the Caribbean and the Gulf and other areas of the Atlantic basin.

Image of 08/18/2017 showing rather warm surface waters of the Atlantic, which are reaching 30 Celsius in some areas, mainly along ‘Hurricane Alley’, in the Caribbean and near Florida and the Bahamas, which are an important contributing factor to potential cyclonic activity

On the other side of the continent, over the eastern waters of the north Pacific, the 2017 hurricane season that officially started on 15 May has also been a busy one so far, with eleven named tropical cyclones in 13 weeks. The latest tropical cyclone there is Tropical Storm KENNETH now moving NNW and away from land.

GOES West infrared image (NOAA) of 19 August 2017 showing Tropical Storm KENNETH moving away from land over tye eastern north Pacific off the coast of Mexico

All interest affected by cyclonic activity generated in the Atlantic basin and in the eastern north Pacific sub-basin must pay attention. Get ready. Be prepared. Remain alert. MITIGATE!

One Week Later: Two More Tropical Storms & a Bunch of Tropical Waves!

Composite global mosaic satellite image on 20 August 2011 showing several tropical waves just north of the equator from equatorial Africa to the eastern Pacific

Last 14 August 2011 Tropical Storm GERT, the 7th named storm of the season, generated and my question was: “seven down, how many more to go?”. Along these lines you may want to revisit my postings of 27 July 2011: 2011 Atlantic Hurricane Season: a New Level of Activity Ahead? and of 7 August 2011: 7 August 2011: Looking East.

Color enhanced infrared GOES satellite image on 20 August 2011 showing Tropical Storm HARVEY over Belize, Tropical Storm IRENE over the Lesser Antilles, and a large tropical wave following behind along hurricane alley.

So, here we are on 21 August a mere week after GERT activated and we have seen Tropical Storm HARVEY come across hurricane alley into the Caribbean to make landfall in Belize, and as Harvey started to decay as it continued moving inland another tropical wave in hurricane alley strengthened to become Tropical Storm IRENE, the ninth-named tropical cyclone of the 2011 Atlantic hurricane season, as it moved over the Lesser Antilles penetrating the Caribbean sub-basin on a westward track.

Satellite image for the avaition industry on 20 August 2011 showing Tropical Storm IRENE moving over Barbados and the Lesser Antilles toward the Caribbean sub-basin

But if having the 8th and 9th named storms of the season were not enough all we have to do is “look east”, as it was suggested in a recent posting, across hurricane alley, the eastern Atlantic and far beyond over equatorial Africa to see a bunch of tropical waves making their westerly trek toward the warm ocean waters near the Cape Verde Islands. Clearly all signs are there is more to come over the next few weeks as we enter what historically has been the most active period of the annual Atlantic hurricane season, although for some reason it empirically seems it has gotten a lot more active earlier during this 2011 season!

Color-enhanced infrared satellite image of the eastern Atlantic and the western end of equatorial Africa on 20 August 2011 showing several tropical waves on their trek westward