240 
FZPN27 KNHC 150344
OFFPZ7

Offshore Waters Forecast
NWS National Hurricane Center Miami, FL
844 PM PDT Mon Aug 14 2023

Offshore Waters Forecast for the E Pacific within 250 nm of
Mexico

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.

PMZ001-151545-
Synopsis for the E Pacific within 250 nm of Mexico
844 PM PDT Mon Aug 14 2023

.SYNOPSIS...Moderate to fresh NW winds are expected offshore
the coast of Baja California from Punta Eugenia to Cabo San Lazaro
mainly at night through the next few days. Gap winds in the Gulf
of Tehuantepec will increase to fresh to strong tonight and 
eventually merge with a potential tropical cyclone. Looking
ahead, a broad area of low pressure associated with a tropical 
wave is producing widespread showers and thunderstorms off the 
southern coasts of Mexico, Guatemala, and El Salvador. A low 
pressure of 1008 mb is analyzed near 09.5N95.5W. Environmental 
conditions appear conducive for development, and a tropical 
depression is expected to form within the next two to three days,
while the system moves west- northwestward, roughly parallel to 
the coast of southern and southwestern Mexico. This system has a 
high chance of tropical cyclone formation within 48 hours, and in
7 days.

$$

PMZ009-151545-
Mexico Border S to 29N within 60 nm of shore-
844 PM PDT Mon Aug 14 2023

.TONIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. Period
16 seconds. 
.TUE...NW winds 10 to 15 kt. Seas 3 to 5 ft. Period 16 seconds. 
.TUE NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds. 
.WED...NW winds 15 to 20 kt. Seas 4 to 6 ft. Period 14 seconds. 
.WED NIGHT...NW winds 15 to 20 kt. Seas 5 to 7 ft. Period
12 seconds. 
.THU...NW winds 15 to 20 kt. Seas 4 to 6 ft. Period 13 seconds. 
.THU NIGHT...NW winds 15 to 20 kt. Seas 5 to 7 ft. Period
13 seconds. 
.FRI...NW winds 10 to 15 kt. Seas 4 to 6 ft. Period 13 seconds. 
.FRI NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. Period
12 seconds. 
.SAT...NW winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
13 seconds. 
.SAT NIGHT...NW to N winds 10 kt. Seas 6 to 8 ft in SW to W
swell. Period 15 seconds. 

$$

PMZ011-151545-
Mexico S of 29N to Punta Eugenia-
844 PM PDT Mon Aug 14 2023

.TONIGHT...NW to N winds 10 to 15 kt. Seas 3 to 5 ft. Period
16 seconds. 
.TUE...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds. 
.TUE NIGHT...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. Period
15 seconds. 
.WED...NW to N winds 10 to 15 kt. Seas 5 to 7 ft in NW swell.
Period 14 seconds. 
.WED NIGHT...NW to N winds 10 to 15 kt. Seas 5 to 7 ft in NW
swell. Period 11 seconds. 
.THU...NW to N winds 10 to 15 kt. Seas 5 to 7 ft in NW swell.
Period 12 seconds. 
.THU NIGHT...NW to N winds 10 to 15 kt. Seas 5 to 7 ft in NW
swell. Period 12 seconds. 
.FRI...NW to N winds 10 to 15 kt. Seas 5 to 7 ft in W to NW
swell. Period 12 seconds. 
.FRI NIGHT...NW to N winds 10 kt. Seas 6 to 8 ft in SW to W
swell. Period 13 seconds. 
.SAT...N winds 10 kt. Seas 7 to 10 ft in S to SW swell. Period
13 seconds. 
.SAT NIGHT...N to NE winds 10 kt. Seas 10 to 15 ft in SE to S
swell. Period 15 seconds. 

$$

PMZ013-151545-
Punta Eugenia to Cabo San Lazaro within 250 nm offshore-
844 PM PDT Mon Aug 14 2023

.TONIGHT...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds. 
.TUE...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds. 
.TUE NIGHT...NW to N winds 10 to 15 kt. Seas 5 to 7 ft in S to
SW swell. Period 15 seconds. 
.WED...NW to N winds 10 to 15 kt. Seas 5 to 7 ft in SW to W
swell. Period 15 seconds. 
.WED NIGHT...NW to N winds 10 to 15 kt. Seas 5 to 7 ft in W to
NW swell. Period 13 seconds. 
.THU...NW to N winds 10 to 15 kt. Seas 5 to 7 ft in W to NW
swell. Period 12 seconds. 
.THU NIGHT...NW to N winds 10 to 15 kt. Seas 5 to 7 ft in W
swell. Period 12 seconds. 
.FRI...NW to N winds 10 to 15 kt. Seas 6 to 9 ft in SW swell.
Period 13 seconds. 
.FRI NIGHT...Variable winds less than 5 kt Within 60 nm of
shore, and N to NE 10 kt Elsewhere. Seas 9 to 14 ft in S swell.
Period 15 seconds. 
.SAT...NE to E winds 10 kt Within 60 nm of shore, and NE 15 to
20 kt Elsewhere. Seas 16 to 25 ft in SE swell. Period
16 seconds. 
.SAT NIGHT...E winds 10 to 15 kt Within 60 nm of shore, and NE
to E 25 to 30 kt Elsewhere. Seas 30 to 45 ft in SE swell. Period
16 seconds. 

$$

PMZ014-151545-
Cabo San Lazaro to Cabo San Lucas within 350 nm offshore N of
20N-
844 PM PDT Mon Aug 14 2023

.TONIGHT...NW to N winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds. 
.TUE...NW to N winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds. 
.TUE NIGHT...NW winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 15 seconds. 
.WED...NW winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
15 seconds. 
.WED NIGHT...NW winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 14 seconds. 
.THU...E to SE winds 10 kt. Seas 4 to 6 ft in S to SW swell.
Period 13 seconds. 
.THU NIGHT...N winds 10 kt. Seas 9 to 14 ft in S to SW swell.
Period 13 seconds. 
.FRI...NE to E winds 10 kt N of 22N, and NE 25 to 30 kt S of
22N. Seas 9 to 14 ft in SE to S swell. Period 15 seconds. 
.FRI NIGHT...E winds 15 to 20 kt N of 22N, and E 25 to 30 kt S
of 22N. Seas 33 to 50 ft in SE swell. Period 15 seconds. 
.SAT...E to SE winds 25 to 30 kt. Seas over 50 ft in SE swell.
Period 14 seconds. 
.SAT NIGHT...SE to S winds 25 to 30 kt. Seas 33 to 50 ft in SE
to S swell. Period 14 seconds. 

$$

PMZ016-151545-
From 17N to 20N Between 110W and 115W including the
Revillagigedo Islands-
844 PM PDT Mon Aug 14 2023

.TONIGHT...N winds 10 kt. Seas 6 to 9 ft in S to SW swell.
Period 16 seconds. 
.TUE...N to NE winds 10 kt in the morning, becoming variable
winds less than 5 kt. Seas 5 to 7 ft in S to SW swell. Period
15 seconds. 
.TUE NIGHT...Variable winds less than 5 kt, becoming NW to N
10 kt late. Seas 4 to 6 ft in S to SW swell. Period
14 seconds. 
.WED...N winds 10 kt. Seas 4 to 6 ft in S to SW swell. Period
15 seconds. 
.WED NIGHT...Variable winds less than 5 kt E of 113W, and NW to
N 10 kt W of 113W. Seas 4 to 6 ft in S to SW swell. Period
14 seconds. 
.THU...NE winds 10 to 15 kt. Seas 6 to 8 ft in S to SW swell.
Period 13 seconds. 
.THU NIGHT...NE winds 25 to 30 kt E of 113W, and N to NE 10 kt W
of 113W. Seas 9 to 14 ft in SE to S swell. Period 14 seconds. 
.FRI...NE winds 25 to 30 kt. Seas 9 to 14 ft in E to SE swell.
Period 15 seconds. 
.FRI NIGHT...S winds 30 kt. Seas 33 to 50 ft in E to SE swell.
Period 14 seconds. 
.SAT...S winds 25 to 30 kt. Seas 26 to 39 ft in SE to S swell.
Period 12 seconds. 
.SAT NIGHT...S winds 20 to 25 kt. Seas 16 to 24 ft in S swell.
Period 12 seconds. 

$$

PMZ017-151545-
Northern Gulf of California-
844 PM PDT Mon Aug 14 2023

.TONIGHT...W winds 10 kt early in the evening, becoming variable
winds less than 5 kt. Seas 3 ft or less. Period 6 seconds. 
.TUE...Variable winds less than 5 kt, becoming NW 10 kt in the
afternoon. Seas 3 ft or less. Period 7 seconds. 
.TUE NIGHT...W winds 10 kt in the evening, becoming variable
winds less than 5 kt. Seas 3 ft or less. Period 4 seconds. 
.WED...Variable winds less than 5 kt. Seas 3 ft or less. Period
3 seconds. 
.WED NIGHT...S to SW winds 10 kt. Seas 3 ft or less. Period
3 seconds. 
.THU...Variable winds less than 5 kt N of 30N, and SE 10 to
15 kt Elsewhere. Seas 3 ft or less. Period 3 seconds. 
.THU NIGHT...SE to S winds 10 kt. Seas 3 ft or less. Period
3 seconds. 
.FRI...SE to S winds 10 kt. Seas 3 ft or less. Period 3 seconds.
.FRI NIGHT...SE to S winds 10 to 15 kt. Seas 4 to 6 ft. Period
11 seconds. 
.SAT...SE to S winds 15 to 20 kt. Seas 5 to 7 ft. Period
6 seconds. 
.SAT NIGHT...SE to S winds 10 to 15 kt. Seas 5 to 7 ft in E to
SE swell. Period 11 seconds. 

$$

PMZ019-151545-
Central Gulf of California-
844 PM PDT Mon Aug 14 2023

.TONIGHT...W winds 10 kt early in the evening, becoming variable
winds less than 5 kt. Seas 3 ft or less. Period 9 seconds. 
.TUE...NW winds 10 kt. Seas 3 ft or less. Period 9 seconds. 
.TUE NIGHT...W to NW winds 10 kt, shifting to SW late.
Seas 3 ft or less, building to 3 to 5 ft late. Period
8 seconds. 
.WED...Variable winds less than 5 kt, becoming S to SW 10 kt in
the afternoon. Seas 3 ft or less. Period 14 seconds. 
.WED NIGHT...S winds 10 kt. Seas 3 ft or less. Period
12 seconds. 
.THU...SE winds 10 to 15 kt. Seas 3 ft or less. Period
12 seconds. 
.THU NIGHT...SE to S winds 10 kt. Seas 3 ft or less. Period
13 seconds. 
.FRI...SE to S winds 10 kt. Seas 4 to 6 ft in SE swell. Period
15 seconds. 
.FRI NIGHT...SE to S winds 10 to 15 kt. Seas 6 to 8 ft in SE
swell. Period 13 seconds. 
.SAT...SE to S winds 10 to 15 kt. Seas 6 to 9 ft in SE swell.
Period 12 seconds. 
.SAT NIGHT...SE to S winds 10 to 15 kt. Seas 9 to 14 ft in SE
swell. Period 12 seconds. 

$$

PMZ021-151545-
Southern Gulf of California-
844 PM PDT Mon Aug 14 2023

.TONIGHT...NW winds 10 kt early in the evening, becoming
variable winds less than 5 kt. Seas 3 ft or less in S swell.
Period 16 seconds. 
.TUE...Variable winds less than 5 kt, becoming W 10 kt in the
afternoon. Seas 3 ft or less. Period 16 seconds. 
.TUE NIGHT...NE to E winds 10 kt in the evening, becoming
variable winds less than 5 kt. Seas 2 to 4 ft in S swell. Period
15 seconds. 
.WED...Variable winds less than 5 kt, becoming S 10 kt in the
afternoon. Seas 2 to 4 ft. Period 14 seconds. 
.WED NIGHT...S to SW winds 10 kt. Seas 2 to 4 ft. Period
12 seconds. 
.THU...SE to S winds 10 kt. Seas 2 to 4 ft. Period 12 seconds. 
.THU NIGHT...S winds 10 kt. Seas 5 to 7 ft in S swell. Period
14 seconds. 
.FRI...SE to S winds 10 kt. Seas 8 to 12 ft in SE to S swell.
Period 14 seconds. 
.FRI NIGHT...S winds 10 kt. Seas 13 to 20 ft in SE to S swell.
Period 14 seconds. 
.SAT...SE to S winds 10 to 15 kt. Seas 15 to 23 ft in SE to S
swell. Period 12 seconds. 
.SAT NIGHT...SE to S winds 10 to 15 kt. Seas 12 to 19 ft in SE
to S swell. Period 12 seconds. 

$$

PMZ022-151545-
N of 20N E of 110W to the Entrance of the Gulf of California-
844 PM PDT Mon Aug 14 2023

.TONIGHT...N of 22N, W to NW winds 10 kt early in the evening,
becoming variable winds less than 5 kt. S of 22N, NW winds
10 kt. Seas 3 to 5 ft. Period 16 seconds. 
.TUE...Variable winds less than 5 kt, becoming SW 10 kt in the
afternoon. Seas 3 to 5 ft. Period 16 seconds. 
.TUE NIGHT...Variable winds less than 5 kt. Seas 3 to 5 ft in S
to SW swell. Period 15 seconds. 
.WED...N of 22N, SW to W winds 10 kt in the afternoon. Variable
winds less than 5 kt in the morning. S of 22N, variable winds
less than 5 kt. Seas 3 to 5 ft in S to SW swell. Period
14 seconds. 
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 3 to 5 ft. Period
14 seconds. 
.THU...SE to S winds 10 kt. Seas 8 to 12 ft in S to SW swell.
Period 14 seconds. 
.THU NIGHT...SE to S winds 10 to 15 kt. Seas 9 to 14 ft in SE to
S swell. Period 14 seconds. 
.FRI...SE to S winds 10 kt N of 22N, and E to SE 25 to 30 kt S
of 22N. Seas 9 to 14 ft in SE to S swell. Period 14 seconds. 
.FRI NIGHT...SE winds 15 to 20 kt. Seas 26 to 38 ft in SE to S
swell. Period 14 seconds. 
.SAT...SE winds 15 to 20 kt. Seas 21 to 31 ft in S swell. Period
12 seconds. 
.SAT NIGHT...S winds 10 to 15 kt. Seas 15 to 23 ft in S to SW
swell. Period 12 seconds. 

$$

PMZ024-151545-
Colima and Jalisco within 300 nm offshore S of 20N and E of
110W-
844 PM PDT Mon Aug 14 2023

.TONIGHT...NW to N winds 10 kt. Seas 3 to 5 ft. Period
16 seconds. Scattered showers and isolated tstms through the
night. 
.TUE...NE winds 10 kt in the morning, becoming variable winds
less than 5 kt. Seas 3 to 5 ft in S to SW swell. Period
15 seconds. Scattered showers and isolated tstms through the
day. 
.TUE NIGHT...Variable winds less than 5 kt. Seas 3 to 5 ft in S
to SW swell. Period 14 seconds. 
.WED...N of 18N, variable winds less than 5 kt, becoming E to SE
10 kt in the afternoon. S of 18N, NE to E winds 10 kt. Seas 3 to
5 ft in S to SW swell. Period 14 seconds. 
.WED NIGHT...E to SE winds 20 to 25 kt. Seas 8 to 12 ft in S to
SW swell. Period 14 seconds. 
.THU...E winds 25 to 30 kt. Seas 8 to 12 ft in SE swell. Period
13 seconds. 
.THU NIGHT...E to SE winds 25 to 30 kt. Seas 9 to 14 ft in E to
SE swell. Period 14 seconds. 
.FRI...SE winds 25 to 30 kt. Seas 9 to 14 ft in SE swell. Period
13 seconds. 
.FRI NIGHT...SE to S winds 25 to 30 kt. Seas 33 to 50 ft in S
swell. Period 12 seconds. 
.SAT...S winds 20 to 25 kt. Seas 17 to 26 ft in S to SW swell.
Period 11 seconds. 
.SAT NIGHT...SW winds 10 to 15 kt. Seas 12 to 18 ft in S to SW
swell. Period 11 seconds. 

$$

PMZ025-151545-
Michoacan and Guerrero within 250 nm offshore-
844 PM PDT Mon Aug 14 2023

.TONIGHT...Within 60 nm of shore, SE to S winds 10 kt, shifting
to E late. Elsewhere, E to SE winds 10 kt early in the
evening, becoming variable winds less than 5 kt. Seas 4 to 6 ft
in S to SW swell. Period 16 seconds. Scattered showers and
isolated tstms through the night. 
.TUE...Within 60 nm of shore, N winds 10 kt in the morning,
becoming variable winds less than 5 kt. Elsewhere, NE winds
10 kt. Seas 3 to 5 ft. Period 15 seconds. Scattered showers and
isolated tstms through the day. 
.TUE NIGHT...NE to E winds 10 kt, increasing to 20 to 25 kt
late. Seas 5 to 7 ft, building to 7 to 11 ft in S to
SW swell late. Period 15 seconds. Scattered showers
and isolated tstms through the night. 
.WED...E winds 25 to 30 kt. Seas 8 to 12 ft in SE to S swell.
Period 14 seconds. Scattered showers and isolated tstms through
the day. 
.WED NIGHT...E to SE winds 20 to 30 kt. Seas 8 to 12 ft in E to
SE swell. Period 13 seconds. 
.THU...SE winds 25 to 30 kt. Seas 8 to 12 ft in SE swell. Period
12 seconds. 
.THU NIGHT...SE to S winds 25 to 30 kt. Seas 9 to 14 ft in S
swell. Period 11 seconds. 
.FRI...S winds 20 to 25 kt. Seas 9 to 14 ft in S to SW swell.
Period 11 seconds. 
.FRI NIGHT...SW to W winds 10 kt. Seas 11 to 17 ft in S to SW
swell. Period 10 seconds. 
.SAT...W winds 10 kt. Seas 10 to 15 ft in S to SW swell. Period
11 seconds. 
.SAT NIGHT...W to NW winds 10 to 15 kt. Seas 9 to 13 ft in S to
SW swell. Period 11 seconds. 

$$

PMZ026-151545-
Oaxaca W of Puerto Angel within 250 nm offshore-
844 PM PDT Mon Aug 14 2023

.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Period
16 seconds. Scattered showers and isolated tstms through the
night. 
.TUE...NE to E winds 20 to 25 kt. Seas 6 to 9 ft in S swell.
Period 16 seconds. Scattered showers and isolated tstms through
the day. 
.TUE NIGHT...E winds 20 to 30 kt. Seas 8 to 12 ft in E to SE
swell. Period 15 seconds. Scattered showers and isolated tstms. 
.WED...SE winds 20 to 30 kt. Seas 8 to 12 ft in E to SE swell.
Period 12 seconds. Scattered showers and isolated tstms. 
.WED NIGHT...SE winds 25 to 30 kt. Seas 8 to 12 ft in SE to S
swell. Period 11 seconds. 
.THU...SE to S winds 15 to 20 kt. Seas 8 to 12 ft in S to SW
swell. Period 11 seconds. 
.THU NIGHT...SW winds 10 kt N of 14N, and S 15 to 20 kt S of
14N. Seas 9 to 14 ft in S to SW swell. Period 11 seconds. 
.FRI...SW winds 10 kt. Seas 8 to 12 ft in S to SW swell. Period
10 seconds. 
.FRI NIGHT...W to NW winds 10 kt N of 14N, and variable less
than 5 kt S of 14N. Seas 6 to 9 ft in S to SW swell. Period
11 seconds. 
.SAT...NW winds 10 kt. Seas 6 to 8 ft in SW swell. Period
12 seconds. 
.SAT NIGHT...NW winds 10 kt. Seas 6 to 8 ft in SW swell. Period
12 seconds. 

$$

PMZ028-151545-
Oaxaca E of Puerto Angel within 300 nm offshore including the
Gulf of Tehuantepec-
844 PM PDT Mon Aug 14 2023

.TONIGHT...E winds 10 to 15 kt, becoming NE to E 20 to 25 kt
late. Seas 6 to 8 ft. Period 16 seconds. Scattered
showers and isolated tstms through the night. 
.TUE...E winds 20 to 30 kt. Seas 8 to 12 ft in E to SE swell.
Period 16 seconds. Scattered showers and isolated tstms. 
.TUE NIGHT...SE winds 25 to 30 kt. Seas 8 to 12 ft in SE swell.
Period 11 seconds. Scattered showers and isolated tstms. 
.WED...NE to E winds 15 to 20 kt N of 14N, and SE 20 to 30 kt S
of 14N. Seas 8 to 12 ft in S to SW swell. Period 11 seconds.
Scattered showers and isolated tstms through the day. 
.WED NIGHT...SE to S winds 15 to 20 kt. Seas 8 to 12 ft in S to
SW swell. Period 11 seconds. 
.THU...SE to S winds 10 to 15 kt. Seas 8 to 12 ft in SW swell.
Period 12 seconds. 
.THU NIGHT...SW to W winds 10 kt. Seas 7 to 11 ft in SW swell.
Period 11 seconds. 
.FRI...NW winds 10 to 15 kt N of 14N, and variable less than
5 kt S of 14N. Seas 6 to 9 ft in SW swell. Period 11 seconds. 
.FRI NIGHT...N winds 10 kt. Seas 6 to 8 ft in S to SW swell.
Period 11 seconds. 
.SAT...N winds 10 kt. Seas 5 to 7 ft in S to SW swell. Period
11 seconds. 
.SAT NIGHT...N winds 10 kt. Seas 5 to 7 ft in S to SW swell.
Period 11 seconds. 

$$

PMZ029-151545-
Offshore Chiapas E of 94W-
844 PM PDT Mon Aug 14 2023

.TONIGHT...E to SE winds 15 to 20 kt. Seas 6 to 8 ft. Period
16 seconds. Scattered tstms. 
.TUE...E to SE winds 20 to 25 kt. Seas 8 to 12 ft in SE to S
swell. Period 16 seconds. Scattered showers and isolated tstms. 
.TUE NIGHT...E of 93W, SE winds 10 to 15 kt in the evening,
becoming variable winds less than 5 kt. W of 93W, E to SE winds
10 to 15 kt. Seas 7 to 10 ft in S swell. Period 10 seconds.
Numerous showers and scattered tstms. 
.WED...NW winds 10 kt. Seas 6 to 8 ft in S to SW swell. Period
13 seconds. Scattered showers and isolated tstms through the
day. 
.WED NIGHT...NW winds 10 kt. Seas 5 to 7 ft in SW swell. Period
11 seconds. 
.THU...Variable winds less than 5 kt E of 93W, and W to NW 10 kt
W of 93W. Seas 6 to 8 ft in SW swell. Period 12 seconds. 
.THU NIGHT...Variable winds less than 5 kt E of 93W, and W 10 kt
W of 93W. Seas 6 to 8 ft in SW swell. Period 12 seconds. 
.FRI...Variable winds less than 5 kt E of 93W, and NW 10 kt W of
93W. Seas 6 to 8 ft in SW swell. Period 11 seconds. 
.FRI NIGHT...Variable winds less than 5 kt. Seas 5 to 7 ft in SW
swell. Period 10 seconds. 
.SAT...Variable winds less than 5 kt. Seas 4 to 6 ft in SW
swell. Period 10 seconds. 
.SAT NIGHT...Variable winds less than 5 kt. Seas 3 to 5 ft in SW
swell. Period 10 seconds. 

$$

Forecaster GR