436
AXPQ20 PGUM 280050
TWDPQ

Tropical Weather Discussion
National Weather Service Tiyan GU
1050 AM ChST Fri Nov 28 2025

Tropical Weather Discussion for the Western North Pacific between
the Equator and 25N from 130E to 180. The following information is
based on recent satellite imagery/data, weather observations, radar,
and meteorological analysis.

...SPECIAL FEATURES...

None.

...OTHER WEATHER SYSTEMS...

NEAR EQUATORIAL TROUGH...
The Near Equatorial Trough (NET) enters the area near 5N130E,
extending ENE to a weak circulation centered east of Palau near
7N137E. The NET then continues E through a second broad, weak
circulation centered WSW of Weno, Chuuk near 7N150E, turning
SE to beyond the Equator near 159E. Only spotty clouds and showers
are found with the trough and first circulation, W of 139E. E of Yap
Proper, scattered to numerous showers and isolated thunderstorms are
found N and along the NET, S of the Marianas across Chuuk State to
S of Pohnpei and Kosrae. Locally heavy showers are found with the
broad circulation. The W portion of the NET and first weak
circulation are expected to drift NW over the next few days, while
the E portion of the NET, E of 140E, looks to drift W. Overall,
little change in intensity is expected along the NET.

TRADE-WIND TROUGHS...
A weak trade-wind trough is seen extending N from the broad
circulation WSW of Weno near 8N151E to end E of the Marianas near
14N151E. This trough is enhancing convection near Weno, producing
locally heavy showers around Chuuk lagoon. Farther N, the trough is
generating low-end scattered showers and isolated thunderstorms well
E of the Marianas near 150E. This trough will continue to move west
over the next few days, bringing increased convection to the
Marianas later in the week as the trough approaches and strengthens
slightly.

Another trade-wind trough is found E of the Marshall Islands,
extending NNW from near 4N179E to end near 10N178E. Convergence
associated with this trough is generating scattered showers and
isolated thunderstorms along and W of the Date Line, E of the
Marshall Islands. The trough will continue W over the coming days
with little change in intensity.

TUTT...
The TUTT has weakened and is no longer evident across the region.

OTHER SYSTEMS...

COLD FRONTS...
A cold front enters the AOR near 25N144E, extending SW to beyond
130E near 19N. Extensive cloudiness, showers and a couple of
thunderstorms are found N of the front to well beyond 25N. This
front will continue to move E over the next few days, with the S
portion of the front weakening and beginning to transition into a
shear line.

A second cold front enters the region near 25N180, extending WSW to
N of Wake Island near 22N167E, then continues W to end near 22N155E.
Cloudiness with scattered showers and a couple of thunderstorms are
found up to 200 miles N of the front. The front, E of 168E, is
expected to move E over the next few days with little change in
intensity. W of 168E, the front looks to remain quasi-stationary as
it slowly transitions into a shear line over the next few days.

...ITCZ...
An ITCZ is no longer evident over the region. An ITCZ is evident to
the E of the Date Line and could spread W over the coming week.

$$

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