ABNT30 KNHC 011200

Monthly Tropical Weather Summary
NWS National Hurricane Center Miami FL
800 AM EDT Fri Sep 01 2017

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

Four named storms and four hurricanes, two of which became major hurricanes, formed in the Atlantic basin in August. Based on a 30-year climatology (1981-2010), these numbers are above the long-term averages of three named storms and two hurricanes.

In terms of the Accumulated Cyclone Energy (ACE), which measures the combined strength and duration of tropical storms and hurricanes, activity in the Atlantic basin so far in 2017 has been near average.

Reports on individual cyclones, when completed, are available at the National Hurricane Center website at www.hurricanes.gov/data/tcr/index.php?season=2017&basin=atl .

Summary Table

Name Dates Max Wind (mph)
TS Arlene 19-21 Apr 50* TS Bret 19-20 Jun 45 TS Cindy 20-23 Jun 60 TD Four 6- 7 Jul 30 TS Don 17-18 Jul 50 TS Emily 31 Jul- 1 Aug 45 H Franklin 6-10 Aug 85 H Gert 13-17 Aug 105 MH Harvey 17 Aug- 130 MH Irma 30 Aug- 115

* Denotes a storm for which the post-storm analysis is complete.

$$ Hurricane Specialist Unit

Preliminary Atlantic Tropical Cyclone Tracks
Preliminary Atlantic Tropical Cyclone Tracks