Eastern North Pacific Tropical Weather Outlook

2 hours 4 minutes ago

379
ABPZ20 KNHC 192319
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Thu Jul 19 2018

For the eastern North Pacific...east of 140 degrees west longitude:

Satellite wind data indicate that the broad area of low pressure
located about 1400 miles southwest of the southern tip of the Baja
California peninsula has become less organized since yesterday.
Since the overall environment still appears to be conducive for
development, some gradual organization is possible during the next
few days while the system moves westward at 15 to 20 mph.
* Formation chance through 48 hours...low...20 percent.
* Formation chance through 5 days...medium...40 percent.

A large area of disorganized showers and thunderstorms centered
several hundred miles southwest of Acapulco, Mexico, is associated
with a tropical wave. Upper-level winds are forecast to become
increasingly favorable for development over the weekend, and a
tropical depression could form early next week while the system
moves westward at 10 to 15 mph.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 5 days...medium...50 percent.

An area of low pressure is likely to form early next week several
hundred miles south of the southern coast of Mexico. Conditions
appear conducive for some development of this system thereafter
while it moves westward or west-northwestward well south of Mexico.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...30 percent.

$$
Forecaster Blake

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

7 hours 48 minutes ago

499
ABPZ20 KNHC 191735
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Thu Jul 19 2018

For the eastern North Pacific...east of 140 degrees west longitude:

A broad area of low pressure located about 1400 miles southwest of
the southern tip of the Baja California peninsula continues to
produce a large area of disorganized showers and thunderstorms.
Environmental conditions appear conducive for gradual development of
this system while it moves quickly westward during the next few
days.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 5 days...medium...50 percent.

An area of showers and thunderstorms located several hundred miles
southwest of Mexico is associated with a westward-moving tropical
wave. A low pressure area is expected to form this weekend from
this wave and gradual development is possible early next week while
it continues westward.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 5 days...medium...40 percent.

Another area of low pressure is likely to form early next week
several hundred miles south of the southern coast of Mexico.
Conditions appear conducive for some development of this system
thereafter while it moves west-northwestward.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...30 percent.

$$
Forecaster Cangialosi/Latto

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

13 hours 38 minutes ago

923
ABPZ20 KNHC 191145
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Thu Jul 19 2018

For the eastern North Pacific...east of 140 degrees west longitude:

A broad area of low pressure located about 1300 miles southwest of
the southern tip of the Baja California peninsula continues to
produce a large area of disorganized showers and thunderstorms.
Environmental conditions appear conducive for gradual development of
this system while it moves quickly westward during the next few
days.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 5 days...medium...40 percent.

A low pressure area is expected to form this weekend about 1000
miles south-southwest of the southern tip of the Baja California
peninsula. Gradual development of this system is possible early
next week while it moves westward.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...medium...40 percent.

Another area of low pressure is likely to form early next week
several hundred miles south of the southern coast of Mexico.
Conditions appear conducive for some development of this system
thereafter while it moves west-northwestward.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...30 percent.

$$
Forecaster Cangialosi

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

20 hours 22 minutes ago

278
ABPZ20 KNHC 190501
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 PM PDT Wed Jul 18 2018

For the eastern North Pacific...east of 140 degrees west longitude:

A tropical wave is producing a large area of showers and
thunderstorms centered about 1250 miles southwest of the southern
tip of the Baja California peninsula. This system continues to
show some signs of organization, and further development is possible
during the next several days while it moves quickly westward.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 5 days...medium...40 percent.

An area of low pressure is expected to form this weekend several
hundred miles southwest of Mexico. Environmental conditions
should support some slow development of this system early next week
while it moves westward or west-northwestward well southwest of
Mexico.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...medium...40 percent.

Another area of low pressure is likely to form early next week
several hundred miles south of the southern coast of Mexico.
Conditions appear conducive for some development of this system next
week while it moves westward to west-northwestward at around
10 mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...20 percent.

$$
Forecaster Blake

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

1 day 2 hours ago

639
ABPZ20 KNHC 182315
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Wed Jul 18 2018

For the eastern North Pacific...east of 140 degrees west longitude:

A tropical wave is producing a large area of showers and
thunderstorms about 1200 miles southwest of the southern tip of
the Baja California peninsula. This system has become better
organized during the past 24 hours, and further development is
possible during the next several days while it moves quickly
westward.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 5 days...medium...40 percent.

An area of low pressure is expected to form this weekend several
hundred miles southwest of Mexico. Environmental conditions
support some slow development of this system early next week
while it moves westward or west-northwestward well southwest of
Mexico.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...medium...40 percent.

Another area of low pressure is likely to form early next week
several hundred miles south of the southern coast of Mexico.
Conditions appear conducive for some development of this system next
week while it moves westward to west-northwestward at around
10 mph.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...20 percent.


$$
Forecaster Blake

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

1 day 7 hours ago

303
ABPZ20 KNHC 181730
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Wed Jul 18 2018

For the eastern North Pacific...east of 140 degrees west longitude:

A weak area of low pressure located about 1300 miles west-southwest
of the southern tip of the Baja California peninsula continues to
produce a small area of showers and thunderstorms. Upper-level
winds are increasing over the system, and development is not
anticipated. This system is expected to move westward during the
next few days.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...near 0 percent.

A tropical wave is producing a large area of disorganized showers
and thunderstorms about 1100 miles southwest of the southern tip of
the Baja California peninsula. Development, if any, of this system
is expected to be slow to occur during the next several days while
it moves westward at low latitudes.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 5 days...low...20 percent.

An area of low pressure is forecast to form this weekend several
hundred miles southwest of Mexico. Some slow development of this
system is possible by early next week while it moves westward or
west-northwestward well south of Mexico.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...30 percent.

$$
Forecaster Cangialosi

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

1 day 13 hours ago

237
ABPZ20 KNHC 181128
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Wed Jul 18 2018

For the eastern North Pacific...east of 140 degrees west longitude:

A weak area of low pressure located about 1200 miles west-southwest
of the southern tip of the Baja California peninsula is producing a
small area of showers and thunderstorms. Development of this
system is unlikely due to strong upper-level winds. This system is
expected to move westward during the next few days.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 5 days...low...10 percent.

Disorganized showers and thunderstorms located about 1000 miles
south-southwest of the southern tip of the Baja California
peninsula are associated with a tropical wave. Environmental
conditions are forecast to become somewhat conducive for development
of this system by the weekend while it moves quickly westward at low
latitudes.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...20 percent.

An area of low pressure is forecast to form late this week several
hundred miles southwest of Mexico. Some slow development of this
system is possible by early next week while it moves westward or
west-northwestward well south of Mexico.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...30 percent.

$$
Forecaster Cangialosi

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

1 day 20 hours ago

788
ABPZ20 KNHC 180500
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 PM PDT Tue Jul 17 2018

For the eastern North Pacific...east of 140 degrees west longitude:

A small area of showers and thunderstorms is associated with a
surface low located about 1200 miles west-southwest of the southern
tip of the Baja California peninsula. Significant development of
this system is not expected before upper-level winds become
unfavorable for further organization late on Wednesday.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 5 days...low...10 percent.

Disorganized cloudiness and showers centered about 1000 miles
south-southwest of the southern tip of the Baja California peninsula
are associated with a tropical wave. Environmental conditions are
forecast to become somewhat conducive for development of this system
by the weekend while it moves quickly westward at low latitudes.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...20 percent.

An area of low pressure is forecast to form late this week several
hundred miles southwest of Mexico. Some slow development of this
system is possible by early next week while it moves westward or
west-northwestward well south of Mexico.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...30 percent.

$$
Forecaster Blake

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

2 days 2 hours ago

479
ABPZ20 KNHC 172317
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Tue Jul 17 2018

For the eastern North Pacific...east of 140 degrees west longitude:

Disorganized showers and thunderstorms continue in association with
an area of low pressure located several hundred miles southwest of
the southern tip of the Baja California Peninsula. Any development
of this system should occur within the next day or so before
upper-level winds become unfavorable for further organization. This
system is forecast to move west-northwestward at 10 to 15 mph.
* Formation chance through 48 hours...low...20 percent.
* Formation chance through 5 days...low...20 percent.

An area of low pressure is likely to form later this week in the
southwestern part of the eastern Pacific basin well southwest of
Mexico. Conditions appear conducive for some gradual development of
this system over the weekend while it moves quickly west-
northwestward.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...20 percent.

Another area of low pressure is forecast to form by the weekend
several hundred miles southwest of Mexico. Environmental conditions
could support some development of this system by early next
week while it moves westward or west-northwestward.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...20 percent.

$$
Forecaster Blake

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

2 days 7 hours ago

039
ABPZ20 KNHC 171732
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Tue Jul 17 2018

For the eastern North Pacific...east of 140 degrees west longitude:

Shower and thunderstorm activity associated with an area of low
pressure located several hundred miles southwest of the southern tip
of the Baja California Peninsula has become less organized.
Upper-level winds are forecast to be unfavorable for development
during the next few days while the system moves westward to
west-northwestward.
* Formation chance through 48 hours...low...20 percent.
* Formation chance through 5 days...low...20 percent.

$$
Forecaster Pasch

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

2 days 13 hours ago

083
ABPZ20 KNHC 171139
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Tue Jul 17 2018

For the eastern North Pacific...east of 140 degrees west longitude:

Disorganized shower and thunderstorm activity associated with a
tropical wave located several hundred miles southwest of the
southern tip of the Baja California Peninsula continues to show
little change. Upper-level winds are forecast to be unfavorable for
development during the next few days while the system moves westward
to west-northwestward.
* Formation chance through 48 hours...low...20 percent.
* Formation chance through 5 days...low...20 percent.

$$
Forecaster Pasch

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

2 days 20 hours ago

099
ABPZ20 KNHC 170502
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 PM PDT Mon Jul 16 2018

For the eastern North Pacific...east of 140 degrees west longitude:

Disorganized shower and thunderstorm activity associated with a
tropical wave located several hundred miles southwest of the
southern tip of the Baja California Peninsula has changed
little since yesterday. Upper-level winds are forecast to become
unfavorable for development in one or two days while the
system moves westward to west-northwestward.
* Formation chance through 48 hours...low...20 percent.
* Formation chance through 5 days...low...20 percent.

$$
Forecaster Blake

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

3 days 2 hours ago

414
ABPZ20 KNHC 162318
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Mon Jul 16 2018

For the eastern North Pacific...east of 140 degrees west longitude:

Disorganized shower and thunderstorm activity associated with a
tropical wave located several hundred miles southwest of the
southern tip of the Baja California Peninsula has changed today.
Upper-level winds are forecast to become less conducive for
development over the next few days while the system moves westward
to west-northwestward.
* Formation chance through 48 hours...low...20 percent.
* Formation chance through 5 days...low...20 percent.

$$
Forecaster Blake

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

3 days 7 hours ago

765
ABPZ20 KNHC 161733
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Mon Jul 16 2018

For the eastern North Pacific...east of 140 degrees west longitude:

Showers and thunderstorms in association with a low pressure system
located about 1050 miles east-southeast of the Big Island of Hawaii
continue to show signs of organization. Environmental conditions
are expected to be conducive for the development of a tropical
depression during the next day or so before upper-level winds
become less conducive by mid-week. This disturbance has crossed
into the Central Pacific basin, and future information on this
system can be found in Tropical Weather Outlooks issued by the
Central Pacific Hurricane Center.
* Formation chance through 48 hours...high...70 percent.
* Formation chance through 5 days...high...70 percent.

Shower and thunderstorm activity associated with a tropical wave
located several hundred miles south-southwest of the southern tip
of the Baja California Peninsula has changed little over the past
several hours. Upper-level winds are forecast to become less
conducive for development over the next few days while the system
moves westward to west-northwestward.
* Formation chance through 48 hours...low...20 percent.
* Formation chance through 5 days...low...20 percent.

&&
Tropical Weather Outlooks by the Central Pacific Hurricane Center
are issued under AWIPS header HFOTWOCP and under WMO header
ACPN50 PHFO, and on the web at www.prh.noaa.gov/cphc/pages/TWO.php

$$
Forecaster Pasch

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

3 days 13 hours ago

755
ABPZ20 KNHC 161146
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Mon Jul 16 2018

For the eastern North Pacific...east of 140 degrees west longitude:

Showers and thunderstorms in association with a low pressure system
located about 1150 miles east-southeast of the Big Island of Hawaii
continue to show signs of organization. Environmental conditions
are expected to be conducive for the development of a tropical
depression during the next day or so before upper-level winds
become less conducive by mid-week. This system is moving westward
and is expected to cross into the Central Pacific basin later today.
* Formation chance through 48 hours...high...80 percent.
* Formation chance through 5 days...high...80 percent.

Shower and thunderstorm activity associated with a tropical wave
located several hundred miles south-southwest of the southern tip
of the Baja California Peninsula has changed little over the past
several hours. This disturbance is producing wind gusts to near
gale force to the east of the wave axis. Although the environment
is expected to be only marginally conducive, some additional
development is possible during the next day or so while the system
moves westward to west-northwestward. By Wednesday, strong
upper-level winds will likely prevent further development.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 5 days...low...30 percent.

$$
Forecaster Pasch

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

3 days 19 hours ago

893
ABPZ20 KNHC 160553
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 PM PDT Sun Jul 15 2018

For the eastern North Pacific...east of 140 degrees west longitude:

Showers and thunderstorms in association with a low pressure system
located about 1200 miles east-southeast of the Big Island of Hawaii
are showing signs of organization. Environmental conditions are
expected to be conducive for the development of a tropical
depression during the next day or so before upper-level winds
increase by mid-week. This system is moving westward and is expected
to cross into the Central Pacific basin on Monday.
* Formation chance through 48 hours...high...80 percent.
* Formation chance through 5 days...high...80 percent.

Shower and thunderstorm activity associated with a tropical wave
located several hundred miles south-southwest of the southern tip
of the Baja California Peninsula has changed little this evening.
However, recent satellite-derived wind data indicate that this
disturbance is producing gale-force wind gusts east of the wave
axis in the strongest thunderstorms. Although the environment is
expected to be only marginally conducive, some additional
development is possible during the next day or so while the system
moves westward to west-northwestward over the open East Pacific. By
Wednesday, strong upper-level winds will likely prevent further
development.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 5 days...low...30 percent.

$$
Forecaster Stewart

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

4 days 2 hours ago

458
ABPZ20 KNHC 152312
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Sun Jul 15 2018

For the eastern North Pacific...east of 140 degrees west longitude:

A low pressure system located about 1300 miles east-southeast of the
Big Island of Hawaii has changed little in organization over the
past several hours. Environmental conditions are expected to be
conducive for the development of a tropical depression during the
next day or two before upper-level winds increase by mid-week. This
system is moving westward and is expected to cross into the Central
Pacific basin on Monday.
* Formation chance through 48 hours...high...70 percent.
* Formation chance through 5 days...high...70 percent.

Shower and thunderstorm activity associated with a tropical wave
located several hundred miles south of the southern tip of the Baja
California Peninsula has increased since this morning. Although the
environment is expected to be only marginally conducive, some
gradual development is possible during the next couple of days as
the system moves west to west-northwestward over the open East
Pacific. By Wednesday, strong upper-level winds will likely prevent
further development.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 5 days...low...10 percent.

$$
Forecaster Zelinsky

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

4 days 7 hours ago

190
ABPZ20 KNHC 151729
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Sun Jul 15 2018

For the eastern North Pacific...east of 140 degrees west longitude:

Satellite images indicate that the circulation of low pressure
system located about 1300 miles east-southeast of the Big Island of
Hawaii has become a little better defined today. However, the
associated shower and thunderstorm activity is still not
particularly well organized. Environmental conditions appear
conducive for gradual development, and a tropical depression could
form during the next couple of days before upper-level winds
increase. This system is expected to move westward and it should
cross into the Central Pacific basin on Monday.
* Formation chance through 48 hours...medium...60 percent.
* Formation chance through 5 days...high...70 percent.

$$
Forecaster Cangialosi

NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

4 days 13 hours ago

074
ABPZ20 KNHC 151137
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Sun Jul 15 2018

For the eastern North Pacific...east of 140 degrees west longitude:

Shower and thunderstorm activity has changed little during the
past several hours in association with a low pressure system located
about 1500 miles east-southeast of the Hawaiian Islands.
Environmental conditions are expected to gradually become more
conducive for development, and a tropical depression could form
during the next few days while the system moves westward. This
system is expected to cross into the Central Pacific basin by early
Monday.
* Formation chance through 48 hours...medium...40 percent.
* Formation chance through 5 days...medium...60 percent.

$$
Forecaster Cangialosi

NHC Webmaster
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