487  
FZPN03 KNHC 200951  
HSFEP2  
 
HIGH SEAS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
1030 UTC WED MAY 20 2026  
 
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  
 
SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE  
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE  
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.  
 
SECURITE  
 
E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE  
EQUATOR E OF 120W  
 
SYNOPSIS VALID 0600 UTC WED MAY 20.  
24 HOUR FORECAST VALID 0600 UTC THU MAY 21.  
48 HOUR FORECAST VALID 0600 UTC FRI MAY 22.  
 
.WARNINGS.  
 
.NONE.  
 
.SYNOPSIS AND FORECAST.  
 
.WITHIN 12N87W TO 12N88W TO 11N90W TO 10N87W TO 11N86W TO  
12N87W...INCLUDING THE GULF OF PAPAGAYO... E WINDS 20 TO 30 KT.  
SEAS LESS THAN 2.5 M.  
.24 HOUR FORECAST LITTLE CHANGE.  
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS  
LESS THAN 2.5 M.  
 
.WITHIN 19N110W TO 30N120W TO 30N140W TO 07N140W TO 09N116W TO  
19N110W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.  
.24 HOUR FORECAST WITHIN 20N123W TO 30N121W TO 30N140W TO  
04N140W TO 10N109W TO 20N123W WINDS 20 KT OR LESS. SEAS 2.5 TO  
3.0 M IN N SWELL.  
.48 HOUR FORECAST WITHIN 19N138W TO 29N136W TO 30N140W TO  
09N140W TO 10N137W TO 13N135W TO 19N138W WINDS 20 KT OR LESS.  
SEAS 2.5 TO 3.0 M IN N TO NE SWELL.  
 
.48 HOUR FORECAST WITHIN 01S111W TO 01S114W TO 01S120W TO  
03.4S120W TO 03S112W TO 01S111W WINDS 20 KT OR LESS. SEAS 2.5 TO  
3.0 M IN SW SWELL.  
 
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.  
 
CONVECTION VALID AT 0900 UTC WED MAY 20...  
   
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH  
 
MONSOON TROUGH FROM 09N78W TO 11N87W TO 07N89W. ITCZ FROM 08N93W  
TO 1007 MB LOW PRESSURE NEAR 07N120W...THEN CONTINUES ON TO  
BEYOND 07N140W. SCATTERED MODERATE CONVECTION IS ACTIVE FROM 06N  
TO 09N EAST OF 88W...FROM 06N TO 12N BETWEEN 95W AND 120W.  
 
 
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.  
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