558  
FZPN03 KNHC 140925  
HSFEP2  
 
HIGH SEAS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
1030 UTC MON SEP 14 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS  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 MON SEP 14.  
24 HOUR FORECAST VALID 0600 UTC TUE SEP 15.  
48 HOUR FORECAST VALID 0600 UTC WED SEP 16.  
 
.WARNINGS.  
   
..TROPICAL STORM WARNING
 
 
.TROPICAL STORM NORBERT NEAR 19.3N 136.4W 1005 MB AT 0900 UTC  
SEP 14 MOVING W OR 280 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 35  
KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM NE  
QUADRANT...10 NM SE QUADRANT...20 NM SW QUADRANT...AND 70 NM NW  
QUADRANT. SEAS 4 M OR GREATER WITHIN 30 NM S SEMICIRCLE...120  
NM NE QUADRANT AND 75 NM NW QUADRANT WITH SEAS TO 5.5 M.  
ELSEWHERE WITHIN 25N134W TO 23N139W TO 18N138W TO 17N136W TO 21N130W TO  
25N134W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M.  
.24 HOUR FORECAST TROPICAL DEPRESSION NORBERT W OF AREA NEAR  
20.2N 141.2W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS TO  
4 M WITHIN 120 NM NE QUADRANT. ELSEWHERE OVER FORECAST WATERS E  
OF 140W WITHIN 23N133W TO 26N135W TO 27N140W TO 19N140W TO  
19N136W TO 20N134W TO 23N133W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0  
M.  
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW NORBERT WELL W OF  
AREA NEAR 20.7N 146.4W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40  
KT. ELSEWHERE OVER FORECAST WATERS E OF 140W NE TO E WINDS 20 TO 25 KT. SEAS  
2.5 TO 3.0 M.  
   
..TROPICAL STORM WARNING
 
 
.TROPICAL DEPRESSION FIFTEEN-E NEAR 16.5N 118.9W 1006 MB AT 0900  
UTC SEP 14 MOVING WSW OR 255 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS  
30 KT GUSTS 40 KT. ELSEWHERE WITHIN 18N117W TO 19N118W TO  
18N120W TO 17N120W TO 16N119W TO 17N117W TO 18N117W WINDS 20 TO  
33 KT. SEAS 2.5 TO 3.0 M.  
.12 HOUR FORECAST TROPICAL STORM FIFTEEN-E NEAR 16.3N 120.1W.  
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.  
.24 HOUR FORECAST TROPICAL STORM FIFTEEN-E NEAR 16.1N 122.3W.  
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE  
WINDS WITHIN 50 NM E SEMICIRCLE...0 NM SW QUADRANT AND 40 NM NW  
QUADRANT. WITHIN 19N119W TO 20N124W TO 19N125W TO 15N124W TO  
14N118W TO 17N117W TO 19N119W E WINDS 25 TO 35 KT. SEAS 2.5 TO  
3.5 M.  
.48 HOUR FORECAST TROPICAL DEPRESSION FIFTEEN-E NEAR 15.4N  
127.1W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN  
22N124W TO 21N131W TO 19N133W TO 15N128W TO 14N123W TO 16N119W TO  
22N124W E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M  
 
FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE  
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE  
AND INTENSITY.  
 
.SYNOPSIS AND FORECAST.  
 
.WITHIN 11N86W TO 12N88W TO 12N89W TO 11N90W TO 10N88W TO  
11N86W...INCLUDING THE GULF OF PAPAGAYO... E WINDS 20 TO 25 KT.  
SEAS LESS THAN 2.5 M.  
.24 HOUR FORECAST LITTLE CHANGE.  
.48 HOUR FORECAST LITTLE CHANGE.  
 
.WITHIN 30N119W TO 30N124W TO 29N124W TO 29N123W TO 29N121W TO  
29N119W TO 30N119W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N  
SWELL.  
.24 HOUR FORECAST WITHIN 30N120W TO 30N127W TO 29N126W TO  
28N124W TO 29N121W TO 30N120W WINDS 20 KT OR LESS. SEAS 2.5 TO  
3.0 M IN N SWELL.  
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS  
LESS THAN 2.5 M.  
 
.WITHIN 01N99W TO 00N111W TO 02N127W TO 00N131W TO 03.4S120W TO  
03.4S92W TO 01N99W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S  
TO SW SWELL.  
.24 HOUR FORECAST WITHIN 05N97W TO 06N102W TO 00N119W TO 03.4S120W  
TO 03.4S91W TO 05N97W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN  
S TO SW SWELL.  
.48 HOUR FORECAST WITHIN 03N106W TO 02N118W TO 00N121W TO  
03.4S120W TO 03.4S104W TO 03N106W WINDS 20 KT OR LESS. SEAS 2.5  
TO 3.0 M IN SE TO S SWELL.  
 
.24 HOUR FORECAST WITHIN 16N94.5W TO 16.5N95W TO 16N95.5W TO  
14.5N95.5W TO 15N94.5W TO 16N94.5W...INCLUDING THE GULF OF  
TEHUANTEPEC... N WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.  
.48 HOUR FORECAST LITTLE CHANGE.  
 
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.  
 
CONVECTION VALID AT 0900 UTC MON SEP 14...  
   
T.S. NORBERT
 
NUMEROUS MODERATE TO SCATTERED STRONG WITHIN 180  
NM IN THE NE SEMICIRCLE.  
   
T.D. FIFTEEN-E
 
NUMEROUS MODERATE TO SCATTERED STRONG  
WITHIN 90 NM IN THE SE QUADRANT...AND SCATTERED MODERATE  
WITHIN 240 NM ELSEWHERE IN THE SE SEMICIRCLE.  
   
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
 
 
MONSOON TROUGH EXTENDS FROM 09N84W TO 06N100W TO 08N115W.  
SCATTERED MODERATE TO ISOLATED STRONG FROM 05N TO 11N BETWEEN  
85W AND 105W.  
 

 
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.  
 
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