000
ABPZ30 KNHC 011458
TWSEP 

Monthly Tropical Weather Summary
NWS National Hurricane Center Miami FL
800 AM PDT Sun Oct 1 2023

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

September was generally below average in the eastern Pacific basin. 
While four tropical cyclones formed during the month of September, 
only two of those went on to become named storms.  Jova became a 
category 5 hurricane over the open waters of the eastern Pacific 
during the early portion of the month, and Tropical Storm Kenneth 
formed just past the middle of the month.  Tropical Depressions 
Twelve-E and Fourteen-E were short-lived tropical cyclones over the 
western and central portions of the basin, respectively.  None of 
these tropical cyclones directly affected land.

The formation of two named storms is below the long-term 
(1991-2020) September average of three named storms.  The formation 
of one hurricane is below the long-term average of two, but with 
Jova becoming a major hurricane that places it at the long-term 
September average of one major hurricane. 

The number of named storms that have formed in the basin so far in 
2023 (12) is close to the long-term (1991-2020) average of 13 
through September. The number of hurricanes (7) is at the average 
long-term pace (7) through September.  In terms of Accumulated 
Cyclone Energy (ACE), which measures the combined strength and 
duration of tropical storms and hurricanes, 2023 is near the 
long-term (1991-2020) average.

Reports on individual cyclones, when completed, are available at
the National Hurricane Center website at:
www.nhc.noaa.gov/data/tcr/index.php?season=2023&basin=epac

Summary Table

Name                  Dates          Max Wind (mph)
---------------------------------------------------
H  Adrian            27 Jun-2 Jul        105
H  Beatriz           29 Jun-1 Jul         85
H  Calvin               11-19 Jul        125
TD Four-E               20-21 Jul         35*
MH Dora             31 Jul-16 Aug        145
TS Eugene          5-7 Aug         70
MH Fernanda             12-17 Aug        130
TS Greg                 14-17 Aug         50
MH Hilary               16-21 Aug        145
TS Irwin                27-29 Aug         45
MH Jova                  4-10 Sep        160
TD Twelve-E             15-17 Sep         35
TS Kenneth              19-22 Sep         50
TD Fourteen-E           23-25 Sep         35 
---------------------------------------------------

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


$$
Hurricane Specialist Unit