000
FZPN03 KNHC 182159
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC WED AUG 18 2021

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 WED AUG 18.
24 HOUR FORECAST VALID 1800 UTC THU AUG 19.
48 HOUR FORECAST VALID 1800 UTC FRI AUG 20.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE LINDA NEAR 18.7N 133.2W 977 MB AT 2100 UTC AUG 18
MOVING WNW OR 285 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 85 KT
GUSTS 105 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM NE
QUADRANT...70 NM SE QUADRANT...60 NM SW QUADRANT...AND 75 NM NW
QUADRANT.  SEAS 12 FT OR GREATER WITHIN 120 NM OF CENTER EXCEPT
180 NM NE QUADRANT WITH SEAS TO 32 FT. ELSEWHERE WITHIN 17N131W 
TO 17N133W TO 21N134W TO 21N133W TO 19N130W TO 17N131W WINDS 20
TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA...WITHIN 13N132W 
TO 16N138W TO 23N136W TO 24N131W TO 19N127W TO 13N132W NE TO E 
WINDS 20 TO 30 KT. SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE LINDA NEAR 20.0N 138.3W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS 
WITHIN 70 NM N SEMICIRCLE AND 50 NM S SEMICIRCLE. SEAS 12 FT OR 
GREATER 150 NM NE QUADRANT...120 NM NW AND SE QUADRANTS AND 90 NM
SW QUADRANT WITH SEAS TO 28 FT. ELSEWHERE WITHIN 19N138W TO 
20N140W TO 23N140W TO 23N137W TO 22N136W TO 19N138W WINDS 20 TO 
33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA...WITHIN 21N133W TO 
17N137W TO 16N140W TO 27N140W TO 25N135W TO 21N133W WINDS 20 KT 
OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. 
.36 HOUR FORECAST TROPICAL STORM LINDA NEAR 20.6N 141.4W. 
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE 
WINDS WITHIN 70 NM NE QUADRANT...65 NM NW QUADRANT...50 NM SE 
QUADRANT...AND 45 NM SW QUADRANT. OVER FORECAST WATERS...SEAS 12 
FT OR GREATER WITHIN 150 NM NE QUADRANT AND 120 NM SE QUADRANT. 
ELSEWHERE WITHIN 21N138W TO 20N138W TO 19N140W TO 23N140N TO 
23N138W TO 21N138W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER
OF AREA...WITHIN 20N135W TO 16N140W TO 28N140W TO 26N136W TO 
20N135W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM LINDA NEAR 21.0N 144.2W. 
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE 
WINDS WITHIN 65 NM N SEMICIRCLE AND 45 NM S SEMICIRCLE. OVER 
FORECAST WATERS...WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.72 HOUR FORECAST POST-TROPICAL LINDA NEAR 21.8N 149.0W. MAXIMUM
SUSTAINED WINDS 40 KT GUSTS 50 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL LINDA NEAR 22.7N 153.5W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT.
.120 HOUR FORECAST POST-TROPICAL LINDA NEAR 23.4N 158.5W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.

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 29N113W TO 29N114W TO 30N115W TO 32N115W TO 31N113W TO
29N113W...INCLUDING GULF OF CALIFORNIA... S WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.WITHIN 08N100W TO 08N112W TO 13N112W TO 13N100W TO 08N100W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN SW SWELL.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.
.42 HOUR FORECAST WITHIN 09N111W TO 12N111W TO 12N108W TO 09N108W
TO 09N111W WINDS 20 KT OR LESS. SEAS TO 8 FT IN SW SWELL.
.48 HOUR FORECAST LITTLE CHANGE.

.12 HOUR FORECAST WITHIN 29.5N123W TO 29N124W TO 29N129W TO
30N129.5W TO 30N123W TO 29.5N123W WINDS 20 KT OR LESS. SEAS 8 TO
10 FT IN MIXED N AND SW SWELL. 
.24 HOUR FORECAST WITHIN 29N124W TO 28N129W TO 29N132W TO 
30N132W TO 30N123W TO 29N124W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN N SWELL. 
.48 HOUR FORECAST WITHIN 29N126W TO 28N132W TO 29N133W TO 
30N135W TO 30N125W TO 29N126W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN N SWELL.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 2100 UTC WED AUG 18...

.HURRICANE LINDA...NUMEROUS MODERATE SCATTERED STRONG CONVECTION
WITHIN 120 NM EAST AND 90 NM WEST OF THE CENTER OF LINDA.

.TROPICAL WAVE ALONG 91W...SCATTERED MODERATE ISOLATED STRONG 
FROM 08N-11N BETWEEN 90W-95W.

.TROPICAL WAVE ALONG 104W...SCATTERED MODERATE ISOLATED STRONG  
NORTH OF 11N BETWEEN 101W-104W.

.TROPICAL WAVE ALONG 118W...SCATTERED MODERATE FROM 04N-06N 
BETWEEN 116W-120W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N78W TO 1010 MB LOW PRESSURE AT 14N100W TO
10N140W. ASIDE FROM THE CONVECTION DESCRIBED IN THE TROPICAL 
WAVE SECTIONS...SCATTERED MODERATE AND ISOLATED STRONG 
CONVECTION FROM 08N-11N WEST OF 132W. SCATTERED MODERATE 
CONVECTION FROM 10N-13W BETWEEN 119W-124W...FROM 10N-14N BETWEEN
105W-111W...AND FROM 04N-07N BETWEEN 83W-88W.

$$
.FORECASTER LANDSEA. NATIONAL HURRICANE CENTER.