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000
ABPZ30 KNHC 011258
TWSEP

Monthly Tropical Weather Summary
NWS National Hurricane Center Miami FL
800 AM PST Fri Dec 1 2023

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

One tropical storm (Ramon) formed in the eastern Pacific basin in the month of November. Based on a 30-year climatology (1991-2020), one named storm typically forms in November every two years.

Overall, the 2023 eastern Pacific hurricane season was near normal in terms of the number of named storms but above normal in terms of the number of hurricanes and major hurricanes. In 2023, 17 named storms formed, of which 10 became hurricanes and 8 became major hurricanes (category 3 or greater on the Saffir-Simpson Hurricane Wind Scale). This compares to the long-term (1991-2020) averages of 15 named storms, 8 hurricanes, and 4 major hurricanes. In terms of Accumulated Cyclone Energy (ACE), which measures the combined strength and duration of tropical storms and hurricanes, activity in 2023 was about 20 percent above 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)
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H Adrian 27 Jun-2 Jul 105* H Beatriz 29 Jun-1 Jul 85 MH 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 15-18 Sep 35* TS Kenneth 19-22 Sep 50 TD Fourteen-E 23-25 Sep 35 MH Lidia 3-11 Oct 140 TS Max 8-10 Oct 60 MH Norma 17-23 Oct 130 MH Otis 22-25 Oct 165 TS Pilar 28 Oct- 6 Nov 60 TS Ramon 23-26 Nov 45
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* Denotes a storm for which NHC's post-storm analysis is complete.



$$ Hurricane Specialist Unit

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