National Hurricane Center (NHC) Pacific Map

058
ABPZ20 KNHC 300515
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 PM PDT Tue Jul 29 2025

For the eastern and central North Pacific east of 180 longitude:

Active Systems:
The National Hurricane Center is issuing advisories on Hurricane
Iona, located in the central Pacific basin well south of the
Hawaiian Islands, and on Tropical Storm Keli also located in the
central Pacific basin well southeast of the Hawaiian Islands.

Western East Pacific (EP98):
Showers and thunderstorms associated with an area of low pressure
located around 1150 miles east-southeast of the Hawaiian Islands
remain limited and have changed little since this morning. However,
if persistent showers and thunderstorms re-develop during the next
day or so, a short-lived tropical depression could still form. The
system will enter the Central Pacific basin shortly.
* Formation chance through 48 hours...medium...60 percent.
* Formation chance through 7 days...medium...60 percent.

South of Southwestern Mexico (EP99):
A trough of low pressure located several hundred miles southwest of
the southwestern coast of Mexico is producing a large area of
disorganized showers and thunderstorms. Environmental conditions
appear conducive for development, and a tropical depression is
likely to form during the next day or two while the system moves
west-northwestward around 15 mph, remaining well offshore of the
southwestern coast of Mexico.
* Formation chance through 48 hours...high...80 percent.
* Formation chance through 7 days...high...90 percent.

Central East Pacific:
An area of low pressure is forecast to develop well south of
southern or southwestern Mexico late this week. Environmental
conditions appear conducive for some gradual development of this
system and a tropical depression could develop over the weekend or
early next week as the system moves west-northwestward at 10 to 15
mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...medium...60 percent.

$$
Forecaster Jelsema

388
ABPZ20 KNHC 292332
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Tue Jul 29 2025

For the eastern and central North Pacific east of 180 longitude:

Active Systems:
The National Hurricane Center is issuing advisories on Hurricane
Iona, located in the central Pacific basin well south-southeast of
the Hawaiian Islands, and on Tropical Storm Keli also located in the
central Pacific basin well southeast of the Hawaiian Islands.

Western East Pacific (EP98):
Showers and thunderstorms associated with an area of low pressure
located around 1250 miles east-southeast of the Hawaiian Islands
have decreased since earlier today. However, if persistent showers
and thunderstorms re-develop during the next day or so, a
short-lived tropical depression is likely to form. The system will
enter the Central Pacific basin tonight.
* Formation chance through 48 hours...high...70 percent.
* Formation chance through 7 days...high...70 percent.

South of Southwestern Mexico (EP99):
A trough of low pressure located about 500 miles south of the
southwestern coast of Mexico is producing a large area of
disorganized showers and thunderstorms. Environmental conditions
appear conducive for development, and a tropical depression is
likely to form during the next couple of days while the system moves
west-northwestward around 15 mph, remaining well offshore of the
southwestern coast of Mexico.
* Formation chance through 48 hours...high...80 percent.
* Formation chance through 7 days...high...90 percent.

Central East Pacific:
An area of low pressure is forecast to develop well south of
southern or southwestern Mexico late this week. Environmental
conditions appear conducive for some gradual development of this
system and a tropical depression could develop over the weekend or
early next week as the system moves west-northwestward at 10 to 15
mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...medium...50 percent.

$$
Forecaster Jelsema

000
ABPZ20 KNHC 291740
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Tue Jul 29 2025

For the eastern and central North Pacific east of 180 longitude:

Active Systems:
The National Hurricane Center is issuing advisories on Hurricane
Iona, located in the central Pacific basin well south-southeast of
the Hawaiian Islands, and on Tropical Storm Keli also located in the
central Pacific basin well southeast of the Hawaiian Islands.

Western East Pacific (EP98):
Showers and thunderstorms have increased in association with a
well-defined area of low pressure located about 1400 miles
east-southeast of the Hawaiian Islands. If the thunderstorms
persist or increase, this system will likely become a tropical
depression or tropical storm while it moves westward into the
Central Pacific basin.
* Formation chance through 48 hours...high...70 percent.
* Formation chance through 7 days...high...70 percent.

South of Southwestern Mexico (EP99):
A large area of disorganized showers and thunderstorms located about
500 miles south of the southwestern coast of Mexico is associated
with a trough of low pressure. Environmental conditions appear
conducive for development, and a tropical depression is likely to
form during the next couple of days while the system moves
west-northwestward around 15 mph, remaining well offshore of the
southwestern coast of Mexico.
* Formation chance through 48 hours...high...80 percent.
* Formation chance through 7 days...high...90 percent.

Central East Pacific:
An area of low pressure is forecast to develop well south of
southern or southwestern Mexico late this week or over the weekend.
Environmental conditions appear conducive for some gradual
development of this system as it moves west-northwestward at 10 to
15 mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...low...30 percent.

$$
Forecaster Cangialosi/Bucci

799
ABPZ20 KNHC 291138
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Tue Jul 29 2025

For the eastern and central North Pacific east of 180 longitude:

Active Systems:
The National Hurricane Center is issuing advisories on Hurricane
Iona, located in the central Pacific basin well south-southeast of
the Hawaiian Islands, and on Tropical Storm Keli also located in the
central Pacific basin well southeast of the Hawaiian Islands.

Western East Pacific (EP98):
A well-defined area of low pressure located around 1500 miles
east-southeast of the Hawaiian Islands continues to produce a
limited amount of showers and thunderstorms. Environmental
conditions appear marginally conducive for some development of this
system, and a tropical depression or tropical storm could form
during the next day or two as it moves generally westward around 10
mph. This system is expected to move into the Central Pacific basin
tonight.
* Formation chance through 48 hours...medium...60 percent.
* Formation chance through 7 days...medium...60 percent.

South of Southwestern Mexico (EP99):
A large area of disorganized showers and thunderstorms located about
500 miles south of the southwestern coast of Mexico is associated
with a trough of low pressure. Environmental conditions appear
conducive for development, and a tropical depression is likely to
form during the next couple of days while the system moves
west-northwestward around 15 mph, remaining well offshore of the
southwestern coast of Mexico.
* Formation chance through 48 hours...high...80 percent.
* Formation chance through 7 days...high...90 percent.

Central East Pacific:
An area of low pressure is forecast to develop well south of
southern or southwestern Mexico late this week or over the weekend
Environmental conditions appear conducive for some gradual
development of this system as it moves west-northwestward at 10 to
15 mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...low...30 percent.

&&
Public Advisories on Tropical Storm Keli are issued under WMO
header WTPA32 PHFO and under AWIPS header MIATCPCP2.
Forecast/Advisories on Tropical Storm Keli are issued under WMO
header WTPA22 PHFO and under AWIPS header MIATCMCP2.

$$
Forecaster Cangialosi

409
ABPZ20 KNHC 290526
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 PM PDT Mon Jul 28 2025

For the eastern and central North Pacific east of 180 longitude:

Active Systems:
The National Hurricane Center is issuing advisories on Hurricane
Iona, located in the central Pacific basin well south-southeast of
the Hawaiian Islands, and on Tropical Storm Keli also located in the
central Pacific basin well southeast of the Hawaiian Islands.

Western East Pacific (EP98):
The area of low pressure located around 1500 miles east-southeast of
the Hawaiian Islands has changed little since earlier today.
Environmental conditions appear marginally conducive for some
development of this system, and a tropical depression or
tropical storm could form during the next day or two as it moves
generally westward around 10 mph and enters the Central Pacific
basin around midweek.
* Formation chance through 48 hours...medium...60 percent.
* Formation chance through 7 days...medium...60 percent.

South of Southwestern Mexico (EP99):
A large area of disorganized showers and thunderstorms located a few
hundred miles south of the southern coast of Mexico is associated
with a trough of low pressure. Environmental conditions appear
conducive for development, and a tropical depression is likely to
form during the next couple of days while the system moves
west-northwestward around 15 mph, remaining well offshore of the
southwestern coast of Mexico.
* Formation chance through 48 hours...high...70 percent.
* Formation chance through 7 days...high...90 percent.

Central East Pacific:
An area of low pressure is forecast to develop over the central East
Pacific, several hundred miles south of the southern tip of the Baja
California peninsula, late this week. Environmental conditions
appear conducive for some gradual development of this system as it
moves westward at 10 to 15 mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...low...20 percent.

&&
Public Advisories on Tropical Storm Keli are issued under WMO
header WTPA32 PHFO and under AWIPS header MIATCPCP2.
Forecast/Advisories on Tropical Storm Keli are issued under WMO
header WTPA22 PHFO and under AWIPS header MIATCMCP2.

$$
Forecaster Jelsema

000
ABPZ20 KNHC 282331
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Mon Jul 28 2025

For the eastern and central North Pacific east of 180 longitude:

Active Systems:
The National Hurricane Center is issuing advisories on Hurricane
Iona, located in the central Pacific basin well southeast of
the Hawaiian Islands, and on Tropical Storm Keli also located
in the central Pacific basin well east-southeast of the Hawaiian
Islands.

Western East Pacific (EP98):
The area of low pressure located around 1500 miles east-southeast of
the Hawaiian Islands has changed little since earlier today.
Environmental conditions appear marginally conducive for some
development of this system, and a tropical depression could form
during the next day or two as it moves generally westward around 10
mph and enters the Central Pacific basin around midweek.
* Formation chance through 48 hours...medium...60 percent.
* Formation chance through 7 days...medium...60 percent.

South of Southwestern Mexico (EP99):
A large area of disorganized showers and thunderstorms located a few
hundred miles south of the southern coast of Mexico is associated
with a trough of low pressure. Environmental conditions are
expected to be conducive for development, and a tropical depression
is likely to form during the next couple of days while the system
moves west-northwestward around 15 mph, remaining well offshore of
the southwestern coast of Mexico.
* Formation chance through 48 hours...high...70 percent.
* Formation chance through 7 days...high...90 percent.

&&
Public Advisories on Tropical Storm Keli are issued under WMO
header WTPA32 PHFO and under AWIPS header MIATCPCP2.
Forecast/Advisories on Tropical Storm Keli are issued under WMO
header WTPA22 PHFO and under AWIPS header MIATCMCP2.

$$
Forecaster Jelsema

960
ABPZ20 KNHC 281739
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Mon Jul 28 2025

For the eastern and central North Pacific east of 180 longitude:

Active Systems:
The National Hurricane Center is issuing advisories on Hurricane
Iona, located in the central Pacific basin well southeast of
the Hawaiian Islands, and on Tropical Depression Two-C also located
in the central Pacific basin well east-southeast of the Hawaiian
Islands.

Western East Pacific (EP98):
Showers and thunderstorms associated with an area of low pressure
located about 1600 miles east-southeast of the Hawaiian Islands
have decreased in coverage this morning. Environmental conditions
appear conducive for gradual development, and a tropical depression
could form during the next day or two. The system is forecast to
move generally westward around 10 mph and enter the Central Pacific
basin around midweek.
* Formation chance through 48 hours...medium...60 percent.
* Formation chance through 7 days...medium...60 percent.

South of Southwestern Mexico (EP99):
A large area of disorganized showers and thunderstorms located a
few hundred miles south of the southern coast of Mexico are
associated with a trough of low pressure. Environmental
conditions are expected to be conducive for development, and a
tropical depression is likely to form during the middle part of
this week as it moves west-northwestward or northwestward at 10
to 15 mph remaining well offshore of the southwestern coast of
Mexico.
* Formation chance through 48 hours...medium...60 percent.
* Formation chance through 7 days...high...90 percent.

&&
Public Advisories on Tropical Depression Two-C are issued under WMO
header WTPA32 PHFO and under AWIPS header MIATCPCP2.
Forecast/Advisories on Tropical Depression Two-C are issued
under WMO header WTPA22 PHFO and under AWIPS header MIATCMCP2.

$$
Forecaster Brown

000
ABPZ20 KNHC 281131
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Mon Jul 28 2025

For the eastern and central North Pacific east of 180 longitude:

Active Systems:
The National Hurricane Center is issuing advisories on Tropical
Storm Iona, located in the central Pacific basin well southeast of
the Hawaiian Islands.

Eastern portion of the Central Pacific (CP91):
Shower and thunderstorm activity associated with a small low
pressure area located about 950 miles southeast of the Hawaiian
Islands is showing signs of organization and have persisted
overnight. If current trends continue, a tropical depression or
storm is likely to develop later this morning or this afternoon.
* Formation chance through 48 hours...high...80 percent.
* Formation chance through 7 days...high...80 percent.

Western East Pacific (EP98):
Showers and thunderstorms associated with an area of low pressure
located about 1650 miles east-southeast of the Hawaiian Islands
have become a little better organized overnight. Additional
development of this system is possible, and a tropical depression
could form during the next day or two as it moves generally
westward around 10 mph.
* Formation chance through 48 hours...medium...60 percent.
* Formation chance through 7 days...medium...60 percent.

South of Southwestern Mexico:
A trough of low pressure located several hundred miles
south-southwest of the Gulf of Tehuantepec is producing a large
area of disorganized showers and thunderstorms. Environmental
conditions are expected to be conducive for gradual development,
and a tropical depression is likely to form during the middle to
later part of this week as it moves west-northwestward or
northwestward at 10 to 15 mph.
* Formation chance through 48 hours...medium...40 percent.
* Formation chance through 7 days...high...90 percent.

$$
Forecaster Brown

000
ABPZ20 KNHC 280907
TWOEP

Special Tropical Weather Outlook
NWS National Hurricane Center Miami FL
210 AM PDT Mon Jul 28 2025

For the eastern and central North Pacific east of 180 longitude:

Special outlook issued to include a recently formed area of low
pressure southeast of the Hawaiian Islands.

Active Systems:
The National Hurricane Center is issuing advisories on Tropical
Storm Iona, located in the central Pacific basin well southeast of
the Hawaiian Islands.

Western East Pacific:
An area of low pressure well east-southeast of the Hawaiian Islands
is producing disorganized showers and thunderstorms. Gradual
development of this system is possible and a tropical depression
could form during the next couple of days as it moves generally
westward around 10 mph.
* Formation chance through 48 hours...medium...40 percent.
* Formation chance through 7 days...medium...40 percent.

South of Southwestern Mexico:
A disturbance located several hundred miles south-southwest of the
Gulf of Tehuantepec is producing a large area of disorganized
showers and thunderstorms. During the next day or two, an area of
low pressure is forecast to form from this area of disturbed
weather, well off the coast of southwestern Mexico. Thereafter,
environmental conditions appear conducive for gradual development of
this system, and a tropical depression is likely to form late this
week as it moves west-northwestward or northwestward at 10 to 15
mph.
* Formation chance through 48 hours...low...20 percent.
* Formation chance through 7 days...high...70 percent.

Eastern portion of the Central Pacific:
Updated: Satellite derived winds indicate that a small area of low
pressure has formed around 1000 miles southeast of the Hawaiian
Islands. If deep convection persists, a short lived tropical
depression or tropical storm could develop later today.
* Formation chance through 48 hours...medium...50 percent.
* Formation chance through 7 days...medium...50 percent.

&&

Public advisories on Tropical Storm Iona are issued under WMO header
WTPA31 PHFO and under AWIPS header HFOTCPCP1.
Forecast/Advisories on Tropical Storm Iona are issued under WMO
header WTPA21 PHFO and under AWIPS header HFOTCMCP1.

$$
Forecaster Jelsema

915
ABPZ20 KNHC 280513
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 PM PDT Sun Jul 27 2025

For the eastern and central North Pacific east of 180 longitude:

Active Systems:
The National Hurricane Center is issuing advisories on Tropical
Storm Iona, located in the central Pacific basin well southeast of
the Hawaiian Islands.

Western East Pacific:
An area of low pressure well east-southeast of the Hawaiian Islands
is producing disorganized showers and thunderstorms. Gradual
development of this system is possible and a tropical depression
could form during the next couple of days as it moves generally
westward around 10 mph.
* Formation chance through 48 hours...medium...40 percent.
* Formation chance through 7 days...medium...40 percent.

South of Southwestern Mexico:
A disturbance located several hundred miles south-southwest of the
Gulf of Tehuantepec is producing a large area of disorganized
showers and thunderstorms. During the next day or two, an area of
low pressure is forecast to form from this area of disturbed
weather, well off the coast of southwestern Mexico. Thereafter,
environmental conditions appear conducive for gradual development of
this system, and a tropical depression is likely to form late this
week as it moves west-northwestward or northwestward at 10 to 15
mph.
* Formation chance through 48 hours...low...20 percent.
* Formation chance through 7 days...high...70 percent.

&&

Public advisories on Tropical Storm Iona are issued under WMO header
WTPA31 PHFO and under AWIPS header HFOTCPCP1.
Forecast/Advisories on Tropical Storm Iona are issued under WMO
header WTPA21 PHFO and under AWIPS header HFOTCMCP1.

$$
Forecaster Jelsema

000
ABPZ20 KNHC 272317
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Sun Jul 27 2025

For the eastern and central North Pacific east of 180 longitude:

Active Systems:
The National Hurricane Center is issuing advisories on Tropical
Depression One-C, located in the central Pacific basin well
southeast of the Hawaiian Islands.

Western East Pacific:
A low pressure area has formed well east-southeast of the Hawaiian
Islands. While the associated thunderstorm activity is currently
disorganized, gradual development of this system is possible during
the next couple of days while it moves generally westward around
10 mph.
* Formation chance through 48 hours...medium...40 percent.
* Formation chance through 7 days...medium...40 percent.

South of Southwestern Mexico:
An area of disturbed weather has developed several hundred miles
south-southwest of the Gulf of Tehuantepec. During the next day or
two, an area of low pressure is forecast to form from this system
well offshore of the southwestern coast of Mexico. Thereafter,
environmental conditions appear conducive for gradual development,
and a tropical depression is likely to form late this week as the
system moves west-northwestward or northwestward at 10 to 15 mph.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 7 days...high...70 percent.

&&

Public advisories on Tropical Depression One-C are issued under WMO
header WTPA31 PHFO and under AWIPS header HFOTCPCP1.
Forecast/Advisories on Tropical Depression One-C are issued under
WMO header WTPA21 PHFO and under AWIPS header HFOTCMCP1.

$$
Forecaster Beven

659
ABPZ20 KNHC 271719
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Sun Jul 27 2025

For the eastern and central North Pacific east of 180 longitude:

Active Systems:
The National Hurricane Center is issuing advisories on Tropical
Depression One-C, located in the central Pacific basin well
southeast of the Hawaiian Islands.

Western East Pacific:
A trough of low pressure well east-southeast of the Hawaiian Islands
is producing a large area of disorganized showers and thunderstorms.
Some gradual development of this system is possible during the next
couple of days while it moves generally westward around 10 mph.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 7 days...low...30 percent.

South of Southwestern Mexico:
An area of low pressure is forecast to form well offshore of the
southwestern coast of Mexico in a couple of days. Thereafter,
environmental conditions appear conducive for gradual development,
and a tropical depression could form late this week as the system
moves west-northwestward or northwestward at 10 to 15 mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...medium...60 percent.

&&

Public advisories on Tropical Depression One-C are issued under WMO
header WTPA31 PHFO and under AWIPS header HFOTCPCP1. Forecast
advisories on Tropical Depression One-C are issued under WMO header
WTPA21 PHFO and under AWIPS header HFOTCMCP1.

$$
Forecaster Cangialosi

909
ABPZ20 KNHC 271139
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Sun Jul 27 2025

For the eastern and central North Pacific east of 180 longitude:

Active Systems:
The National Hurricane Center is issuing advisories on Tropical
Depression One-C, located in the central Pacific basin well
southeast of the Hawaiian Islands.

Western East Pacific:
A trough of low pressure well east-southeast of the Hawaiian Islands
is producing a large area of disorganized showers and thunderstorms.
Some gradual development of this system is possible during the next
few days while it moves generally westward around 10 mph.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 7 days...low...30 percent.

South of Southwestern Mexico:
An area of low pressure is forecast to form well offshore of the
southwestern coast of Mexico in a couple of days. Thereafter,
environmental conditions appear conducive for gradual development,
and a tropical depression could form late this week as the system
moves west-northwestward or northwestward at 10 to 15 mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...medium...50 percent.

&&

Public advisories on Tropical Depression One-C are issued under WMO
header WTPA31 PHFO and under AWIPS header HFOTCPCP1. Forecast
advisories on Tropical Depression One-C are issued under WMO header
WTPA21 PHFO and under AWIPS header HFOTCMCP1.

$$
Forecaster Cangialosi/Kelly

835
ABPZ20 KNHC 270524
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 PM PDT Sat Jul 26 2025

For the eastern and central North Pacific east of 180 longitude:

Eastern portion of the Central Pacific (CP90):
Showers and thunderstorms associated with an area of low pressure
about 900 miles southeast of the Hawaiian Islands have become better
organized since earlier today. Additional development of this system
is expected and a tropical depression is likely to form later
tonight or Sunday as it moves generally westward around 10 mph, well
to the south of the Hawaiian Islands.
* Formation chance through 48 hours...high...80 percent.
* Formation chance through 7 days...high...80 percent.

Western East Pacific:
A trough of low pressure about 1700 miles east-southeast of the
Hawaiian Islands is producing a large area of disorganized showers
and thunderstorms. Some gradual development of this system is
possible during the next few days at it moves generally westward
around 10 mph.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 7 days...low...30 percent.

South of Southwestern Mexico:
An area of low pressure is forecast to form well offshore of the
southwestern coast of Mexico early next week. Thereafter,
environmental conditions appear conducive for gradual development,
and a tropical depression could form during the middle to latter
part of next week as the system moves west-northwestward or
northwestward at 10 to 15 mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...medium...40 percent.

$$
Forecaster Jelsema

846
ABPZ20 KNHC 262338
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Sat Jul 26 2025

For the eastern and central North Pacific east of 180 longitude:

Eastern portion of Central Pacific (CP90):
Showers and thunderstorms have become slightly better organized in
association with an area of low pressure located about 950 miles
southeast of the Hawaiian Islands. Additional development of this
system is expected as it moves generally westward staying well south
of the Hawaiian Islands, and a short-lived tropical depression is
likely to form during the next few days.
* Formation chance through 48 hours...medium...60 percent.
* Formation chance through 7 days...high...70 percent.

Western East Pacific:
A trough of low pressure about 1500 miles east-southeast of the
Hawaiian Islands is producing a large area of disorganized showers
and thunderstorms. Some slow development of this system is possible
as it moves generally westward during the next several days.
* Formation chance through 48 hours...low...20 percent.
* Formation chance through 7 days...low...30 percent.

South of Southwestern Mexico:
An area of low pressure is forecast to form well offshore of the
southwestern coast of Mexico early next week. Thereafter,
environmental conditions appear conducive for gradual development,
and a tropical depression could form during the middle to latter
part of next week as the system moves west-northwestward or
northwestward at 10 to 15 mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...medium...40 percent.

$$
Forecaster Bucci

981
ABPZ20 KNHC 261710
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Sat Jul 26 2025

For the eastern and central North Pacific east of 180 longitude:

Eastern portion of Central Pacific (CP90):
Showers and thunderstorms remain limited and disorganized in
association with an area of low pressure located about 1000 miles
east-southeast of the Hawaiian Islands. Some gradual development of
this system is possible, and a tropical depression could form
before it moves into less conducive environmental conditions by
the middle of next week. This system is forecast to move westward
during the next several days well south of the Hawaiian Islands.
* Formation chance through 48 hours...medium...50 percent.
* Formation chance through 7 days...medium...60 percent.

Western East Pacific:
A trough of low pressure centered a little more than 1500 miles
east-southeast of the Hawaiian Islands is producing a large area of
disorganized showers and thunderstorms. Some slow development of
this system is possible as it moves generally westward during the
next several days.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 7 days...low...20 percent.

South of Southwestern Mexico:
An area of low pressure is forecast to form well offshore of the
southwestern coast of Mexico early next week. Thereafter,
environmental conditions appear conducive for gradual development,
and a tropical depression could form during the middle to latter
part of next week as the system moves west-northwestward or
northwestward at 10 to 15 mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...medium...40 percent.

$$
Forecaster Cangialosi

000
ABPZ20 KNHC 261135
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Sat Jul 26 2025

For the eastern and central North Pacific east of 180 longitude:

Eastern portion of Central Pacific (CP90):
Showers and thunderstorms remain limited and disorganized in
association with an area of low pressure located about 1000 miles
east-southeast of the Hawaiian Islands. Some gradual development of
this system is possible, and a tropical depression could form
before it moves into less conducive environmental conditions by
the middle of next week. This system is forecast to move westward
during the next several days well south of the Hawaiian Islands.
* Formation chance through 48 hours...medium...50 percent.
* Formation chance through 7 days...medium...60 percent.

Western East Pacific:
A trough of low pressure centered about 1500 miles east-southeast of
the Hawaiian Islands is producing a large area of disorganized
showers and thunderstorms. Some slow development of this system is
possible as it moves generally westward during the next several
days.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 7 days...low...20 percent.

South of Southwestern Mexico:
An area of low pressure is forecast to form well offshore of the
southwestern coast of Mexico early next week. Thereafter,
environmental conditions appear conducive for gradual development,
and a tropical depression could form during the middle to latter
part of next week as the system moves generally west-northwestward
at 10 to 15 mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...medium...40 percent.

$$
Forecaster Cangialosi

878
ABPZ20 KNHC 260542
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 PM PDT Fri Jul 25 2025

For the eastern and central North Pacific east of 180 longitude:

Eastern portion of Central Pacific (CP90):
Showers and thunderstorms associated with a broad area of low
pressure located around 1100 miles southeast of the Hawaiian Islands
have decreased since earlier today. Some gradual development of this
system is possible, and a tropical depression could form this
weekend or early next week as it moves generally westward at 10 to
15 mph across the Central Pacific basin.
* Formation chance through 48 hours...medium...50 percent.
* Formation chance through 7 days...medium...60 percent.

South of Southwestern Mexico:
An area of low pressure is forecast to form offshore of the
southwestern coast of Mexico early next week. Thereafter,
environmental conditions appear conducive for some development and a
tropical depression could form during the middle to latter part of
next week as the system moves generally west-northwestward at 10 to
15 mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...medium...40 percent.

Western East Pacific:
An area of low pressure is forecast to develop over 1500 miles
east-southeast of the Hawaiian Islands during the next day or two.
Some gradual development is possible thereafter, as the system moves
generally westward around 10 mph.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 7 days...low...20 percent.

$$
Forecaster Jelsema

727
ABPZ20 KNHC 252315
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Fri Jul 25 2025

For the eastern and central North Pacific east of 180 longitude:

Eastern portion of Central Pacific (CP90):
An area of low pressure located well southeast of the Hawaiian
Islands is producing a large area of showers and thunderstorms.
Some gradual development of this system is possible, and a tropical
depression could form this weekend or early next week as it moves
generally westward at 10 to 15 mph across the Central Pacific basin.
* Formation chance through 48 hours...medium...50 percent.
* Formation chance through 7 days...medium...60 percent.

Central East Pacific:
An area of low pressure is forecast to form offshore of the
southwestern coast of Mexico early next week. Thereafter,
environmental conditions appear conducive for some development and a
tropical depression could form during the middle to latter part of
next week as the system moves generally west-northwestward at 10 to
15 mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...medium...40 percent.

$$
Forecaster Bucci

000
ABPZ20 KNHC 251727
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Fri Jul 25 2025

For the eastern and central North Pacific east of 180 longitude:

Well Southeast of the Hawaiian Islands(EP97):
An area of low pressure located well southeast of the Hawaiian
Islands is producing a large area of showers and thunderstorms.
Some gradual development of this system is possible, and a tropical
depression could form this weekend or early next week as it
moves generally westward at 10 to 15 mph across the far western
portion of the eastern Pacific and into the Central Pacific basin.
* Formation chance through 48 hours...medium...40 percent.
* Formation chance through 7 days...medium...60 percent.

Central East Pacific:
An area of low pressure is forecast to form offshore of the
southwestern coast of Mexico early next week. Thereafter,
environmental conditions appear conducive for some development as
the system moves generally west-northwestward at 10 to 15 mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...low...30 percent.

$$
Forecaster Kelly