659
ABPZ30 KNHC 011409
TWSEP
Monthly Tropical Weather Summary
NWS National Hurricane Center Miami FL
800 AM PDT Mon Oct 1 2018
For the eastern North Pacific, east of 140 degrees west longitude:
September was slightly above average in the eastern Pacific basin in
terms of the number of named storms (4), hurricanes (2), and major
hurricanes (2) that formed during the month. One short-lived
tropical depression also formed in September. Based on a 30-year
(1981-2010) climatology, three named storms typically form in the
eastern Pacific basin in September, with two of those becoming
hurricanes and one reaching major hurricane intensity.
In terms of Accumulated Cyclone Energy (ACE), which measures the
strength and duration of tropical storms and hurricanes, activity
in the basin thus far in 2018 has been above average.
Reports on individual cyclones, when completed, are available at
the National Hurricane Center website at:
www.hurricanes.gov/data/tcr/index.php?season=2018&basin=epac
Summary Table
Name Dates Max Wind (mph)
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TD One-E 10-11 May 35*
MH Aletta 6-11 Jun 140*
MH Bud 9-15 Jun 130
TS Carlotta 14-18 Jun 65
TS Daniel 24-26 Jun 45
TS Emilia 27 Jun- 2 Jul 60*
H Fabio 30 Jun- 6 Jul 110
TS Gilma 26-29 Jul 40
TD Nine-E 26-27 Jul 35*
MH Hector 31 Jul-15 Aug 155**
TS Ileana 4- 7 Aug 65
H John 5-10 Aug 105
TS Kristy 7-11 Aug 70
MH Lane 15-28 Aug 160**
H Miriam 26 Aug- 2 Sep 100**
MH Norman 28 Aug- 8 Sep 150
MH Olivia 1-13 Sep 130
TS Paul 8-12 Sep 45
TD Nineteen-E 19-20 Sep 35
MH Rosa 25 Sep- 145
TS Sergio 29 Sep- 70
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* Denotes a storm for which the post-storm analysis is complete.
** Max Wind (mph) occurred in the Central Pacific Basin.
$$
Hurricane Specialist Unit |