ABPZ30 KNHC 011435

Monthly Tropical Weather Summary
NWS National Hurricane Center Miami FL
800 AM PDT Wed Nov 1 2017

For the eastern North Pacific, east of 140 degrees west longitude:

Two tropical storms formed in the eastern North Pacific basin in October, but neither attained hurricane status. Based on a 30-year (1981-2010) climatology, two named storms typically form in the basin in October, with one of those becoming a hurricane. A major hurricane occurs in the basin in October in about 6 out of 10 years.

In terms of Accumulated Cyclone Energy (ACE), which measures the combined strength and duration of tropical storms and hurricanes, activity in October was below normal. However, ACE has been near normal for the season as a whole.

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

Summary Table

Name Dates Max Wind (mph)
TS Adrian 9-11 May 45 TS Beatriz 31 May- 2 Jun 45* TS Calvin 11-13 Jun 45* H Dora 25-28 Jun 90 MH Eugene 7-12 Jul 115* MH Fernanda 12-22 Jul 145 TS Greg 17-26 Jul 60 TD Eight-E 18-20 Jul 35 H Hilary 21-30 Jul 105 H Irwin 22 Jul- 1 Aug 90 TD Eleven-E 4- 5 Aug 35 TS Jova 12-13 Aug 40 MH Kenneth 18-23 Aug 130 TS Lidia 31 Aug- 3 Sep 65 H Max 13-15 Sep 80 H Norma 14-20 Sep 75 MH Otis 11-19 Sep 115 TS Pilar 23-25 Sep 40 TS Ramon 4- 5 Oct 45 TS Selma 27-28 Oct 40

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

$$ Hurricane Specialist Unit

Preliminary Eastern North Pacific Tropical Cyclone Tracks
Preliminary Eastern North Pacific Tropical Cyclone Tracks