401  
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)  
---------------------------------------------------  
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  
---------------------------------------------------  
 
* DENOTES A STORM FOR WHICH NHC'S POST-STORM ANALYSIS IS COMPLETE.  
 

 
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