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High Seas Forecast (Tropical Northeast Pacific)


000
FZPN03 KNHC 212117
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC TUE JUL 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE JUL 21.
24 HOUR FORECAST VALID 1800 UTC WED JUL 22.
48 HOUR FORECAST VALID 1800 UTC THU JUL 23.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE FAUSTO NEAR 16.6N 119.9W 987 MB AT 2100 UTC JUL 21 MOVING 
WNW OR 295 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. 
TROPICAL STORM FORCE WINDS WITHIN 100 NM NE QUADRANT...140 NM SE 
QUADRANT...120 NM SW QUADRANT...AND 50 NM NW QUADRANT.  SEAS 4 M OR 
GREATER WITHIN 240 NM NE QUADRANT...210 NM SE QUADRANT...120 NM SW 
QUADRANT...AND 150 NM NW QUADRANT WITH SEAS TO 8.0 M. ELSEWHERE 
WITHIN 210 NM OF CENTER...EXCEPT 270 NM NE QUADRANT WINDS 20 TO 33 
KT. SEAS 3.0 TO 4.0 M. REMAINDER OF THE AREA FROM 11N TO 22N BETWEEN 
111W AND 123W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE FAUSTO NEAR 17.4N 122.7W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 
130 NM E SEMICIRCLE...110 NM SW QUADRANT AND 90 NM NW QUADRANT. SEAS 
4 M OR GREATER WITHIN 240 NM NE SEMICIRCLE AND 180 NM SW SEMICIRCLE 
WITH SEAS TO 9 M. ELSEWHERE WITHIN 240 NM OF CENTER...EXCEPT 270 NM 
NE QUADRANT WINDS 20 TO 33 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF THE 
AREA FROM 12N TO 25N BETWEEN 115W AND 128W WINDS 20 KT OR LESS. SEAS 
2.5 TO 3.0 M IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE FAUSTO NEAR 17.9N 127.0W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS 
WITHIN 140 NM E SEMICIRCLE...110 NM SW QUADRANT AND 130 NM NW 
QUADRANT. SEAS 4 M OR GREATER WITHIN 270 NM NE SEMICIRCLE AND 210 NM 
SW SEMICIRCLE WITH SEAS TO 9 M. ELSEWHERE WITHIN 270 NM OF CENTER... 
EXCEPT 300 NM NE QUADRANT WINDS 20 TO 33 KT. SEAS 3.0 TO 4.0 M. 
REMAINDER OF THE AREA FROM 11N TO 27N BETWEEN 119W AND 134W WINDS 20 
KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.

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.

.LOW PRES N OF AREA NEAR 34N127W 1006 MB. N OF A LINE FROM 30N124W 
TO 28N130W TO 30N134W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN 
MIXED SWELL. 
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.FROM 10N TO 11.5N E OF 92W...INCLUDING THE GULF OF PAPAGAYO...NE TO 
E WINDS 20 TO 25 KT. SEAS TO 2.5 M. 
.12 HOUR FORECAST FROM 10N TO 12N E OF 90W...INCLUDING THE GULF OF 
PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS TO 2.5 M
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.S OF 01N BETWEEN 117W AND 120W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 
M IN SE SWELL.
.12 HOUR FORECAST 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 TUE JUL 21...

.HURRICANE FAUSTO...NUMEROUS MODERATE SCATTERED STRONG FROM 
13.5N TO 16.5N BETWEEN 118W AND 121W. SCATTERED MODERATE ISOLATED 
STRONG ELSEWHERE FROM 11N TO 18N BETWEEN 113W AND 123W.

.TROPICAL WAVE ALONG 90W...SCATTERED MODERATE TO ISOLATED STRONG 
NEAR THE SOUTHERN END OF THE WAVE AXIS FROM 05N TO 10N BETWEEN 85W 
AND 90W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM A 1007 MB LOW PRESSURE LOCATED OVER 
NORTHERN COLOMBIA TO 07N80W TO 08N95W TO 11N110W, WHERE IT BREAKS 
FOR HURRICANE FAUSTO, THEN RESUMES NEAR 12N126W TO BEYOND 09N140W. 
ASIDE FROM THE CONVECTION ASSOCIATED WITH THE TROPICAL WAVE, 
SCATTERED MODERATE CONVECTION IS NOTED FROM 04N TO 10N BETWEEN 90W 
AND 111W. 

$$

.FORECASTER GR. NATIONAL HURRICANE CENTER.