000
FZPN03 KNHC 202205
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC FRI OCT 20 2023

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 FRI OCT 20.
24 HOUR FORECAST VALID 1800 UTC SAT OCT 21.
48 HOUR FORECAST VALID 1800 UTC SUN OCT 22.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE NORMA NEAR 20.1N 109.8W 955 MB AT 2100 UTC OCT 20 
MOVING NNW OR 330 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 105 KT 
GUSTS 115 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM NW AND SE 
QUADRANTS...140 NM NE QUADRANT AND 100 NM SW QUADRANT. SEAS 12 FT
OR GREATER WITHIN 210 NM NE QUADRANT...240 NM SE QUADRANT...270 
NM SW QUADRANT...AND 300 NM NW QUADRANT WITH SEAS TO 38 FT. 
ELSEWHERE WITHIN 22N106W TO 23N110W TO 22N111W TO 19N112W TO 
17N108W TO 19N105W TO 22N106W...INCLUDING NEAR CABO 
CORRIENTES...WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF 
AREA WITHIN 19N104W TO 24N107W TO 23N116W TO 18N118W TO 14N115W 
TO 14N109W TO 19N104W...INCLUDING NEAR CABO CORRIENTES AND THE 
GULF OF CALIFORNIA...WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN 
MIXED SWELL.
.24 HOUR FORECAST HURRICANE NORMA NEAR 22.6N 110.1W. MAXIMUM 
SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM FORCE WINDS 
WITHIN 100 NM NW AND SE QUADRANTS...120 NM NE QUADRANT AND 90 NM 
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM NE 
QUADRANT...240 NM SE QUADRANT...300 NM SW QUADRANT...AND 330 NM 
NW QUADRANT WITH SEAS TO 31 FT. ELSEWHERE WITHIN 23N106W TO 
25N108W TO 26N110W TO 24N112W TO 21N112W TO 20N109W TO 
23N106W...INCLUDING NEAR CABO CORRIENTES AND THE GULF OF 
CALIFORNIA...WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF 
AREA WITHIN 22N106W TO 21N112W TO 26N109W TO 26N117W TO 19N117W 
TO 16N110W TO 22N106W...INCLUDING NEAR CABO CORRIENTES AND THE 
GULF OF CALIFORNIA...WINDS 20 KT OR LESS. SEAS 8 TO 11 IN MIXED 
SWELL.
.48 HOUR FORECAST TROPICAL STORM NORMA NEAR 23.9N 109.0W. 
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE 
WINDS WITHIN 80 NM NE QUADRANT...90 NM SE QUADRANT...60 NM SW 
QUADRANT...AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 90
NM NE QUADRANT...150 NM SE QUADRANT...60 NM SW QUADRANT...AND 
105 NM NW QUADRANT WITH SEAS TO 24 FT. ELSEWHERE WITHIN 25N108W 
TO 26N110W TO 23N111W TO 22N109W TO 22N107W TO 23N106W TO 
25N108W...INCLUDING THE GULF OF CALIFORNIA...WINDS 20 TO 33 KT. 
SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 26N110W TO 27N111W TO 
25N112W TO 21N111W TO 19N109W TO 22N105W TO 26N110W...INCLUDING 
NEAR CABO CORRIENTES AND THE GULF OF CALIFORNIA...WINDS 20 KT OR 
LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM NORMA INLAND NEAR 24.6N 107.1W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST...DISSIPATED.

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 15N101W TO 13N119W TO 24N120W TO 30N140W TO 00N140W TO
03.4S97W TO 15N101W...INCLUDING THE GULF OF CALIFORNIA AND
SEBASTIAN VIZCAINO BAY...WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN
NW SWELL.
.24 HOUR FORECAST WITHIN 19N104W TO 17N114W TO 29N114W TO 
30N126W TO 00N138W TO 03.4S98W TO 19N104W...INCLUDING NEAR CABO 
CORRIENTES AND SEBASTIAN VIZCAINO BAY...WINDS 20 KT OR LESS. SEAS
8 TO 10 FT IN NW SWELL.
.48 HOUR FORECAST WITHIN 18N103W TO 20N112W TO 30N116W TO 
00N131W TO 03.4S120W TO 03.4S92W TO 18N103W...INCLUDING NEAR CABO
CORRIENTES AND SEBASTIAN VIZCAINO BAY...WINDS 20 KT OR LESS. 
SEAS 8 TO 9 FT IN NW SWELL.

.WITHIN 15N95W TO 16N94W TO 16N95W TO 13N98W TO 12N97W TO 13N96W
TO 15N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20
TO 25 KT. SEAS 8 FT.
.24 HOUR FORECAST WITHIN 15N95W TO 16N94W TO 16N95W TO 13N98W TO
12N97W TO 13N96W TO 15N95W...INCLUDING THE GULF OF 
TEHUANTEPEC...WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED WELL.
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.LOW PRES NEAR 09N96W 1007 MB. WITHIN 08N93W TO 10N95W TO 11N97W
TO 08N99W TO 06N97W TO 07N93W TO 08N93W WINDS 20 KT OR LESS. 
SEAS 8 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
09N96W 1007 MB. WITHIN 09N93W TO 15N96W TO 12N100W TO 08N101W TO 
04N99W TO 04N95W TO 09N93W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN
MIXED SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
WITHIN 09N92W TO 12N94W TO 14N100W TO 09N101W TO 06N100W TO 
03N94W TO 09N92W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED 
SWELL.

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

CONVECTION VALID AT 2130 UTC FRI OCT 20...

HURRICANE NORMA...NUMEROUS MODERATE STRONG FROM 18N TO 24N 
BETWEEN 107W AND 112W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM 10N86W TO LOW PRES NEAR 09N96W 1007 
MB TO 12N01W THEN FROM 12N112W TO LOW PRES NEAR 10N122W 1010 MB 
TO 07N130W TO 11N140W. SCATTERED MODERATE ISOLATED STRONG FROM 
01N TO 10N BETWEEN 77W AND 81W. SCATTERED MODERATE FROM 06N TO 
18N BETWEEN 97W AND 118W...AND FROM 07N TO 14N AND W OF 136W. 

$$ 
.FORECASTER AREINHART. NATIONAL HURRICANE CENTER.