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TWSCP 

 

Monthly Tropical Weather Summary...Corrected

NWS Central Pacific Hurricane Center Honolulu HI

1230 PM HST Sep 1 2023

 

For the central North Pacific, between 140W and 180W:



There were two tropical cyclones in the Central Pacific Hurricane 

Center (CPHC) area of responsibility during the month of August.



Hurricane Dora crossed 140W into the central North Pacific on 

August 6, passed well south of the main Hawaiian Islands on August 

8, then crossed 180W into the western North Pacific on August 12. 

As Hurricane Dora passed south of Hawaii, the steep pressure 

gradient between the hurricane and a strong high to the north of 

the islands triggered a damaging high wind event across the chain. 



Dora remained a hurricane the entire time it was in the central 

North Pacific, which would make this system the second on record to 

do so, and the first since Hurricane John in 1994. Hurricane Dora 

may have also set a record for the longest-lasting Pacific category 

4 hurricane on the Saffir-Simpson hurricane wind scale, although 

most of the associated track at this strength was in the eastern 

North Pacific.



Tropical Storm Greg crossed 140W into the central North Pacific on 

August 14, then dissipated south of the Hawaiian Islands on August 

18.



Reports on individual tropical cyclones, when completed, are 

available at the CPHC website at:

www.hurricanes.gov/data/tcr/index.php?season=2023&basin=cpac



Note, the summary table below only includes tropical cyclones in 

the CPHC area of responsibility, and the dates are based on 

Universal Coordinated Time, UTC.



Summary Table 



Name                Dates         Max Wind (mph)

--------------------------------------------------

TS Calvin          17-19 Jul           60

MH Dora             6-12 Aug          145

TS Greg            14-18 Aug           50

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Hurricane Specialist Unit