141  
ABPZ30 KNHC 011249  
TWSEP  
 
MONTHLY TROPICAL WEATHER SUMMARY  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
700 AM PST FRI DEC 1 2017  
 
FOR THE EASTERN NORTH PACIFIC, EAST OF 140 DEGREES WEST LONGITUDE:  
 
NO TROPICAL CYCLONES FORMED IN THE BASIN IN NOVEMBER. THIS IS NOT  
UNUSUAL, HOWEVER, WITH A NAMED STORM FORMING IN THE BASIN IN  
NOVEMBER ONLY ONCE EVERY 4 YEARS BASED ON A 1981-2010 CLIMATOLOGY.  
 
FOR THE 2017 SEASON, 18 NAMED STORMS FORMED, INCLUDING 9 HURRICANES  
AND 4 MAJOR HURRICANES. THE NUMBER OF NAMED STORMS WAS ABOVE THE  
LONG-TERM AVERAGE OF 15, WHILE THE NUMBER OF HURRICANES AND MAJOR  
HURRICANES WAS NEAR THE LONG TERM AVERAGES OF 8 AND 4, RESPECTIVELY.  
THERE WERE ALSO TWO TROPICAL DEPRESSIONS THAT FORMED THAT DID NOT  
REACH TROPICAL STORM STRENGTH.  
 
IN TERMS OF ACCUMULATED CYCLONE ENERGY (ACE), WHICH MEASURES THE  
COMBINED STRENGTH AND DURATION OF TROPICAL STORMS AND HURRICANES,  
ACTIVITY IN THE BASIN IN 2017 WAS NEAR NORMAL. DESPITE THE LARGE  
NUMBER OF TROPICAL STORMS THAT FORMED IN 2017, MANY OF THEM WERE  
WEAK AND/OR SHORT LIVED.  
 
REPORTS ON INDIVIDUAL CYCLONES, WHEN COMPLETED, ARE AVAILABLE AT  
THE NATIONAL HURRICANE CENTER WEBSITE AT:  
HURRICANES.GOV/DATA/TCR/INDEX.PHP?SEASON=2017&BASIN=EPAC  
 
SUMMARY TABLE  
 
NAME DATES MAX WIND (MPH)  
---------------------------------------------------  
TS ADRIAN 9-10 MAY 45*  
TS BEATRIZ 31 MAY- 2 JUN 45*  
TS CALVIN 11-13 JUN 45*  
H DORA 24-28 JUN 105*  
MH EUGENE 7-12 JUL 115*  
MH FERNANDA 12-22 JUL 145  
TS GREG 17-26 JUL 60  
TD EIGHT-E 18-20 JUL 35  
H HILARY 21-30 JUL 105  
H IRWIN 22 JUL- 1 AUG 90  
TD ELEVEN-E 4- 5 AUG 35*  
TS JOVA 11-13 AUG 40*  
MH KENNETH 18-23 AUG 130  
TS LIDIA 31 AUG- 3 SEP 65  
H MAX 13-15 SEP 80  
H NORMA 14-20 SEP 75  
MH OTIS 11-19 SEP 115  
TS PILAR 23-25 SEP 40  
TS RAMON 4- 5 OCT 45  
TS SELMA 27-28 OCT 40*  
---------------------------------------------------  
 
* DENOTES A STORM FOR WHICH THE POST-STORM ANALYSIS IS COMPLETE.  
 

 
HURRICANE SPECIALIST UNIT  
 
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