Eastern North Pacific Tropical Weather Outlook

1 week 5 days ago

000
ABPZ20 KNHC 051541
TWOEP

Special Tropical Weather Outlook
NWS National Hurricane Center Miami FL
740 AM PST Sat Jan 5 2019

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

Shower activity associated with a broad low pressure system centered
about 1100 miles west-southwest of the southern tip of the Baja
California peninsula has become less organized since yesterday.
Environmental conditions have become unfavorable and tropical or
subtropical cyclone development is not anticipated. Additional
information on this system can be found in High Seas Forecasts
issued by the National Weather Service. This is the last Special
Tropical Weather Outlook that will be issued on this system.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...near 0 percent.

Routine issuance of the Tropical Weather Outlook will resume on May
15, 2019. During the off-season, Special Tropical Weather Outlooks
will be issued as conditions warrant.

&&

High Seas Forecasts are issued by the National Weather Service
under AWIPS header NFDHSFEPI, WMO header FZPN02 KWBC, and are
available on the web at
https://ocean.weather.gov/shtml/NFDHSFEPI.shtml.

$$
Forecaster Zelinsky
NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

1 week 6 days ago

000
ABPZ20 KNHC 041836
TWOEP

Special Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1040 AM PST Fri Jan 4 2019

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

Shower activity associated with a broad low pressure system centered
about 1200 miles southwest of the southern tip of the Baja
California peninsula has become a little better organized since
yesterday. Some slight additional tropical or subtropical
development is possible overnight and early Saturday while the low
drifts slowly northward, but environmental conditions are expected
to become unfavorable for further development by Saturday afternoon.
Regardless of tropical or subtropical cyclone development, winds
near gale-force associated with the low are possible over the
weekend. Additional information on this system can be found in High
Seas Forecasts issued by the National Weather Service. The next
Special Tropical Weather Outlook on this system will be issued by 11
AM PST Saturday, or earlier, if necessary.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 5 days...low...30 percent.

&&

High Seas Forecasts are issued by the National Weather Service
under AWIPS header NFDHSFEPI, WMO header FZPN02 KWBC, and are
available on the web at
https://ocean.weather.gov/shtml/NFDHSFEPI.shtml.

$$
Forecaster Zelinsky
NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

2 weeks ago

000
ABPZ20 KNHC 032014
TWOEP

Special Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1215 PM PST Thu Jan 3 2019

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

A large area of disturbed weather associated with a broad area of
low pressure has formed about 1300 miles southwest of the southern
tip of the Baja California peninsula. The low is forecast to move
slowly northward over the next few days and could acquire some
tropical or subtropical characteristics during that time.
Environmental conditions are expected to become unfavorable for
further development by early next week. Regardless of tropical or
subtropical cyclone development, the low will likely produce
gale-force winds over the weekend. Additional information on this
system can be found in High Seas Forecasts issued by the National
Weather Service. The next Special Tropical Weather Outlook on this
system will be issued by 11 AM PST Friday, or earlier, if necessary.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 5 days...medium...50 percent.

&&

High Seas Forecasts are issued by the National Weather Service
under AWIPS header NFDHSFEPI, WMO header FZPN02 KWBC, and are
available on the web at
https://ocean.weather.gov/shtml/NFDHSFEPI.shtml.

$$
Forecaster Zelinsky
NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

1 month 2 weeks ago

000
ABPZ20 KNHC 010503
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1000 PM PST Fri Nov 30 2018

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

Tropical cyclone formation is not expected during the next 5 days.

This is the last regularly scheduled Tropical Weather Outlook of
the 2018 eastern North Pacific hurricane season. Routine issuance
of the Tropical Weather Outlook will resume on May 15, 2019.
During the off-season, Special Tropical Weather Outlooks will be
issued as conditions warrant.

$$
Forecaster Beven
NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

1 month 2 weeks ago

000
ABPZ20 KNHC 291131
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
400 AM PST Thu Nov 29 2018

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

Disorganized showers and thunderstorms continue in association with
a well-defined low pressure system centered a little more than 100
miles southwest of Zihuatanejo, Mexico. Although tropical cyclone
formation is not expected due to strong upper-level winds, the
associated shower activity will continue to spread onshore and well
inland over southwestern Mexico into this afternoon. Locally heavy
rainfall and gusty winds will occur over portions of the Mexican
states of Guerrero, Michoacan, Colima and Jalisco, and these rains
could result in life-threatening flash floods and mudslides.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...near 0 percent.

$$
Forecaster Stewart
NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

1 month 2 weeks ago

000
ABPZ20 KNHC 290500
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1000 PM PST Wed Nov 28 2018

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

Disorganized showers and thunderstorms continue in association with
an elongated low pressure area centered about 275 miles south of
Manzanillo, Mexico. Significant development of this system is not
expected due to strong upper-level winds. However, shower activity
associated with the disturbance is forecast to move over
southwestern Mexico through Thursday, bringing locally heavy
rainfall and gusty winds to portions of the Mexican states of
Guerrero, Michoacan, Colima and Jalisco. These rains could result in
life-threatening flash floods and mudslides.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 5 days...low...10 percent.

$$
Forecaster Blake
NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

1 month 2 weeks ago

000
ABPZ20 KNHC 282319
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
400 PM PST Wed Nov 28 2018

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

Showers and thunderstorms associated with an elongated low pressure
area centered about 325 miles south-southwest of Manzanillo, Mexico,
have become less organized since yesterday, and further development
of this system is not likely due to strong upper-level winds.
However, shower activity associated with the disturbance is forecast
to move toward southwestern Mexico today through Thursday, bringing
locally heavy rainfall and gusty winds to portions of the Mexican
states of Guerrero, Michoacan, Colima and Jalisco. These rains could
result in life-threatening flash floods and mudslides.
* 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

1 month 2 weeks ago

000
ABPZ20 KNHC 281738
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1000 AM PST Wed Nov 28 2018

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

An elongated low pressure system centered about 375 miles
south-southwest of Manzanillo, Mexico, is producing disorganized
showers and thunderstorms. Upper-level winds have continued to
increase, and tropical cyclone formation is becoming less likely.
However, shower activity associated with the disturbance is forecast
to move northeastward toward southwestern Mexico today through
Thursday, bringing locally heavy rainfall and gusty winds to
portions of the Mexican states of Guerrero, Michoacan, Colima and
Jalisco. These rains could result in life-threatening flash floods
and mudslides.
* 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

1 month 2 weeks ago

000
ABPZ20 KNHC 281134
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
400 AM PST Wed Nov 28 2018

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

A westward-moving low pressure system located about 400 miles
south-southwest of Manzanillo, Mexico, continues to produce
disorganized showers and thunderstorms. Upper-level winds have
become less conducive for development, and tropical cyclone
formation is becoming less likely. However, shower activity
associated with the disturbance is still forecast to move
northeastward toward southwestern Mexico today through Thursday,
bringing locally heavy rainfall to portions of the Mexican states
of Guerrero, Michoacan, Colima and Jalisco. These rains could result
in life-threatening flash floods and mudslides.
* 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

1 month 2 weeks ago

000
ABPZ20 KNHC 280503
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1000 PM PST Tue Nov 27 2018

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

A broad low pressure area located about 425 miles south-southwest of
Manzanillo, Mexico, continues to produce disorganized showers and
thunderstorms. Although upper-level winds are not likely to be
particularly conducive for development, a tropical depression could
still form before environmental conditions become very unfavorable
late Thursday. The disturbance is forecast to turn northeastward
toward southwestern Mexico on Wednesday and approach the coast on
Thursday. Regardless of development, locally heavy rain is expected
across portions of the Mexican states of Guerrero, Michoacan, Colima
and Jalisco through Thursday. These rains could result in
life-threatening flash floods and mudslides.
* Formation chance through 48 hours...medium...40 percent.
* Formation chance through 5 days...medium...40 percent.

$$
Forecaster Blake
NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

1 month 2 weeks ago

000
ABPZ20 KNHC 272302
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
400 PM PST Tue Nov 27 2018

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

A low pressure area located about 450 miles south-southwest of
Manzanillo, Mexico, has become better defined with more
consolidated thunderstorm activity since yesterday. Although
environmental conditions are only forecast to be marginally
conducive, a tropical depression could form during the next day or
two. The disturbance is forecast to move northward tonight and turn
northeastward toward southwestern Mexico on Wednesday. Regardless of
development, locally heavy rain is possible across portions of
southwestern Mexico beginning tomorrow through Thursday.
* Formation chance through 48 hours...medium...50 percent.
* Formation chance through 5 days...medium...50 percent.

$$
Forecaster Blake
NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

1 month 2 weeks ago

000
ABPZ20 KNHC 271744
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1000 AM PST Tue Nov 27 2018

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

A low pressure system located about 450 miles south-southwest of
Zihuatanejo, Mexico, continues to produce disorganized shower and
thunderstorm activity. However, environmental conditions are
forecast to become marginally conducive for some gradual
development, and a tropical depression could still form during the
next day or two. The disturbance is forecast to move northward today
and tonight, and then turn northeastward toward southwestern Mexico
on Wednesday.
* Formation chance through 48 hours...medium...50 percent.
* Formation chance through 5 days...medium...50 percent.

$$
Forecaster Stewart
NHC Webmaster

Eastern North Pacific Tropical Weather Outlook

1 month 2 weeks ago

000
ABPZ20 KNHC 271148
TWOEP

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
400 AM PST Tue Nov 27 2018

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

A low pressure system located more than 400 hundred miles southwest
of Acapulco, Mexico, continues to produce disorganized shower and
thunderstorm activity. However, environmental conditions are
forecast to become a little more conducive for some gradual
development, and a tropical depression could form during the next
couple of days. The disturbance is forecast to move northward
today, and then turn northeastward toward southwestern Mexico on
Wednesday.
* Formation chance through 48 hours...medium...40 percent.
* Formation chance through 5 days...medium...50 percent.

A broad area of low pressure located about 1200 miles
south-southwest of the southern tip of the Baja California
peninsula is producing limited shower activity. Strong upper-level
winds are expected to prevent significant development of this system
during the next couple of days while it remains nearly stationary.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...near 0 percent.

$$
Forecaster Stewart
NHC Webmaster
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6 hours 55 minutes ago
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