NWS Bulletins for NPAC - MKWC
Menu of Text Products for the Hawaiian Islands and the Tropical Pacific/Atlantic Oceans:
Narrow the Menu List
Select Time Limit: 12 hours | 24 hours | 48 hours | 72 hours | No time limit
Select Product Type: All | Routine Bulletins/FCSTS | Warnings/Watches/Advisories | HAWN Weather | Tropical | Marine | Aviation | Daily Obs | Special
Hawaiian Islands Synoptic Discussion and Guidance
999
FXHW60 PHFO 200122
AFDHFO
Area Forecast Discussion
National Weather Service Honolulu HI
322 PM HST Mon Jan 19 2026
.SYNOPSIS...
Southeastly low level winds will bring some light showers along
windward and mauka locations through Tuesday. A front will move
into the western end of the state Tuesday night. Increased
moisture will linger for several days and possibly into the
weekend.
&&
.DISCUSSION...
Some light isolated showers continue to move across the state this
afternoon. Satellite imagery shows sunny skies outside of those
showers. Clouds and showers will continue to move from the
southeast through the rest of the evening. Light to moderate
southeast winds will continue to veer through tomorrow, leading to
warmer and more humid conditions. They will become light enough
to allow for a sea/land breeze set up. A cold front will approach
Kauai County Tuesday night.
Latest guidance is still showing a variety of solutions on timing
and extent of the eastward movement of the front. Right now it
looks like the front will stall near Oahu Wednesday afternoon.
Thursday and Friday, there are roughly equal chances that the
front then gets pushed to near the Big Island, or alternatively
pulls back west toward Kauai. Either way, moisture will increase
over the state and the chance of rain increases over all islands.
This has as much to do with increasing moisture coming in on
southeast low level flow over the eastern part of the state as it
does moisture from the front itself.
Models also indicate that the extensive moisture could remain
over the state through the coming weekend. Overall, it will be a
return to a wetter and warmer pattern. There is a small risk of
thunderstorms, heavy rain, and flooding, but details are clear as
mud and thus confidence is too low for any specifics.
&&
.AVIATION...
A light to moderate east-southeasterly wind regime is expected to
continue as a front from the NW moves closer to the islands. The
winds will continue to be light enough to allow land and sea
breezes to occur within the next 24 hours. Light and isolated
showers embedded within the flow are possible, but VFR conditions
are still expected statewide.
No AIRMETs are currently in effect, and none are anticipated
through tonight.
&&
.MARINE...
Southeast winds will continue weakening through Tuesday as a cold
front approaches from the northwest. The front will reach the far
northwest coastal waters Tuesday night, moving down the the
island chain Wednesday and stalling out across Oahu and Maui
County Wednesday. Northeast winds will increase along and behind
the front, and remain stronger across the western half of the
state through Friday.
A moderate, long period, northwest swell is expected to arrive in
the islands Tuesday, and linger into the middle of the week, and
slowly subside during the end of the week. This swell will
maintain elevated surf near advisory levels along exposed north
and west facing shores.
East shore surf will remain small into Tuesday as winds taper off.
Surf will increase a little bit as the northeast winds pick up
along the front, but mostly impact Kauai and Oahu. There are no
noteworthy swells for the next few days for south facing shores.
&&
.HFO WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
DISCUSSION...Walsh
AVIATION...DT
MARINE...Foster
Bulletins, Forecasts and Observations are courtesy of Honolulu National Weather Service Forecast Office
Narrow the Menu List
Select Time Limit: 12 hours | 24 hours | 48 hours | 72 hours | No time limit
Select Product Type: All | Routine Bulletins/FCSTS | Warnings/Watches/Advisories | HAWN Weather | Tropical | Marine | Aviation | Daily Obs | Special
Hawaiian Islands Synoptic Discussion and Guidance
999
FXHW60 PHFO 200122
AFDHFO
Area Forecast Discussion
National Weather Service Honolulu HI
322 PM HST Mon Jan 19 2026
.SYNOPSIS...
Southeastly low level winds will bring some light showers along
windward and mauka locations through Tuesday. A front will move
into the western end of the state Tuesday night. Increased
moisture will linger for several days and possibly into the
weekend.
&&
.DISCUSSION...
Some light isolated showers continue to move across the state this
afternoon. Satellite imagery shows sunny skies outside of those
showers. Clouds and showers will continue to move from the
southeast through the rest of the evening. Light to moderate
southeast winds will continue to veer through tomorrow, leading to
warmer and more humid conditions. They will become light enough
to allow for a sea/land breeze set up. A cold front will approach
Kauai County Tuesday night.
Latest guidance is still showing a variety of solutions on timing
and extent of the eastward movement of the front. Right now it
looks like the front will stall near Oahu Wednesday afternoon.
Thursday and Friday, there are roughly equal chances that the
front then gets pushed to near the Big Island, or alternatively
pulls back west toward Kauai. Either way, moisture will increase
over the state and the chance of rain increases over all islands.
This has as much to do with increasing moisture coming in on
southeast low level flow over the eastern part of the state as it
does moisture from the front itself.
Models also indicate that the extensive moisture could remain
over the state through the coming weekend. Overall, it will be a
return to a wetter and warmer pattern. There is a small risk of
thunderstorms, heavy rain, and flooding, but details are clear as
mud and thus confidence is too low for any specifics.
&&
.AVIATION...
A light to moderate east-southeasterly wind regime is expected to
continue as a front from the NW moves closer to the islands. The
winds will continue to be light enough to allow land and sea
breezes to occur within the next 24 hours. Light and isolated
showers embedded within the flow are possible, but VFR conditions
are still expected statewide.
No AIRMETs are currently in effect, and none are anticipated
through tonight.
&&
.MARINE...
Southeast winds will continue weakening through Tuesday as a cold
front approaches from the northwest. The front will reach the far
northwest coastal waters Tuesday night, moving down the the
island chain Wednesday and stalling out across Oahu and Maui
County Wednesday. Northeast winds will increase along and behind
the front, and remain stronger across the western half of the
state through Friday.
A moderate, long period, northwest swell is expected to arrive in
the islands Tuesday, and linger into the middle of the week, and
slowly subside during the end of the week. This swell will
maintain elevated surf near advisory levels along exposed north
and west facing shores.
East shore surf will remain small into Tuesday as winds taper off.
Surf will increase a little bit as the northeast winds pick up
along the front, but mostly impact Kauai and Oahu. There are no
noteworthy swells for the next few days for south facing shores.
&&
.HFO WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
DISCUSSION...Walsh
AVIATION...DT
MARINE...Foster
Bulletins, Forecasts and Observations are courtesy of Honolulu National Weather Service Forecast Office