563
FZNT32 KNHC 201521
OFFN21
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
1121 AM EDT MON OCT 20 2025
MARINE WEATHER HF VOICE BROADCAST FOR THE GULF OF AMERICA
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.
SYNOPSIS
A FRONTAL BOUNDARY, CURRENTLY CURVING WESTWARD FROM
CEDAR KEY, FLORIDA TO SOUTHERN TEXAS. THE COLD FRONT PORTION
ACROSS NORTHERN FLORIDA AND EASTERN GULF WILL PROGRESS FARTHER
SOUTHEASTWARD THROUGH THIS EVENING, THEN STALL OVER SOUTHERN
FLORIDA AND SOUTHEASTERN GULF. THE ENTIRE FRONTAL BOUNDARY
SHOULD GRADUALLY WEAKEN AND DISSIPATE ON TUE. MODERATE N TO NE
WINDS ARE EXPECTED NORTH OF THE FRONT. HIGH PRESSURE WILL BUILD
OVER THE BASIN IN THE WAKE OF THIS FRONT, LEADING TO GENTLE TO
MODERATE WINDS AND SLIGHT SEAS OVER THE GULF.
GULF OF AMERICA N OF 26N W OF 87W
THIS AFTERNOON
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TONIGHT
SE WINDS 10 KT. SEAS 3 TO 4 FT.
TUE
S WINDS LESS THAN 10 KT, SHIFTING TO NE IN THE AFTERNOON.
SEAS 3 FT.
TUE NIGHT
NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
WED
NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING TO
3 TO 4 FT AFTER MIDNIGHT.
THU
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
GULF OF AMERICA FROM 22N TO 26N W OF 87W
THIS AFTERNOON
E WINDS LESS THAN 10 KT. SEAS 3 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TUE
E WINDS LESS THAN 10 KT. SEAS 3 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 FT.
WED
NE WINDS 10 TO 15 KT. SEAS 3 FT.
WED NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SW GULF OF AMERICA S OF 22N W OF 87W
THIS AFTERNOON
NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
TONIGHT
WITHIN 60 NM OF COAST OF VERACRUZ, NE WINDS LESS THAN
10 KT. ELSEWHERE, N WINDS LESS THAN 10 KT, SHIFTING TO E AFTER
MIDNIGHT. SEAS 2 FT OR LESS.
TUE
E WINDS LESS THAN 10 KT IN THE MORNING, BECOMING VARIABLE
WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
TUE NIGHT
WITHIN 60 NM OF COAST OF VERACRUZ, NE WINDS LESS
THAN 10 KT. ELSEWHERE, NE WINDS LESS THAN 10 KT, INCREASING TO
10 TO 15 KT AFTER MIDNIGHT. SEAS 2 FT OR LESS.
WED
NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
WED NIGHT
NE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING
TO 3 FT AFTER MIDNIGHT.
THU
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 TO 4 FT.
GULF OF AMERICA E OF 87W
THIS AFTERNOON
NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS,
BUILDING TO 3 FT IN THE AFTERNOON.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 FT IN THE EVENING,
SUBSIDING TO 2 FT OR LESS.
TUE
NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
TUE NIGHT
NE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
WED
NE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
WED NIGHT
NE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING
TO 3 FT AFTER MIDNIGHT.
THU
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
FRI NIGHT
E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
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