344  
FZPN03 KNHC 182100  
HSFEP2  
 
HIGH SEAS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
2230 UTC MON MAY 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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 1800 UTC MON MAY 18.  
24 HOUR FORECAST VALID 1800 UTC TUE MAY 19.  
48 HOUR FORECAST VALID 1800 UTC WED MAY 20.  
 
.WARNINGS.  
 
.NONE.  
 
.SYNOPSIS AND FORECAST.  
 
.WITHIN 24N113W TO 29N115W TO 27N140W TO 04N140W TO 09N123W TO  
16N124W TO 24N113W...INCLUDING ENTRANCE TO SEBASTIAN VIZCAINO  
BAY...WINDS 20 KT OR LESS. SEAS 2.5 TO 4.0 M IN N TO NE SWELL.  
.24 HOUR FORECAST WITHIN 30N120W TO 30N140W TO 08N140W TO  
10N124W TO 19N115W TO 30N120W WINDS 20 KT OR LESS. SEAS 2.5 TO  
3.0 M IN N TO NE SWELL.  
.48 HOUR FORECAST WITHIN 23N131W TO 30N140W TO 07N140W TO  
10N125W TO 18N131W TO 23N131W WINDS 20 KT OR LESS. SEAS 2.5 TO  
3.0 M IN N TO NE SWELL.  
 
.WITHIN 02N130W TO 04N130W TO 04N134W TO 03N134W TO 00N140W TO  
00N128W TO 02N130W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN SE  
TO S SWELL.  
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS  
LESS THAN 2.5 M.  
 
.WITHIN 01S110W TO 00N114W TO 02S117W TO 03S117W TO 03S108W TO  
01S110W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S TO SW SWELL.  
.15 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS  
LESS THAN 2.5 M.  
 
.06 HOUR FORECAST WITHIN 11N86W TO 12N87W TO 11N89W TO 10N88W TO  
10N86W TO 11N86W...INCLUDING GULF OF PAPAGAYO...E TO SE WINDS 20  
TO 25 KT. SEAS NEAR 2.5 M.  
.24 HOUR FORECAST LITTLE CHANGE.  
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS  
LESS THAN 2.5 M.  
 
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.  
 
CONVECTION VALID AT 2100 UTC MON MAY 18...  
   
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH  
 
MONSOON TROUGH AXIS EXTENDS FROM 09N84W TO 07N91W. ITCZ AXIS  
EXTENDS FROM 07N91W TO 07N120W TO BEYOND 07N140W. SCATTERED  
MODERATE TO ISOLATED STRONG FROM 02N TO 11N E OF 88W...AND FROM  
05N TO 12N BETWEEN 93W AND 117W. NUMEROUS MODERATE TO SCATTERED  
STRONG FROM 03N TO 11N W OF 118W.  
 
 
 
.FORECASTER CHAN. NATIONAL HURRICANE CENTER.  
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