385
AXPQ20 PGUM 290042
TWDPQ

Tropical Weather Discussion
National Weather Service Tiyan GU
1042 AM ChST Sat Nov 29 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...

TROPICAL AND MONSOON DISTURBANCES...
A weak disturbance, JTWC Invest 93W, is centered near 9N142E. This
feature is currently more of an open trough, extending N from a weak
buffer circulation near 1N150E to end near 11N150E. Scattered to
numerous showers and isolated thunderstorms are seen along this
feature to the NW of Weno, Chuuk. This feature looks to move toward
the WNW over the next few days, possibly becoming a weak circulation
N of Yap and Palau early next week.

...OTHER WEATHER SYSTEMS...

NEAR EQUATORIAL TROUGH...
The Near Equatorial Trough (NET) enters the AOR near 10N130E, and
extends SE to a weak circulation centered SE of Palau near 6N136E.
The NET then continues ESE through a buffer circulation centered
near 1N150E, crossing the Equator near 159E. Scattered showers and
isolated thunderstorms are found with the first circulation just N
of the trough over northern Palau to south of Ngulu. Scattered to
numerous showers and isolated thunderstorms are found N of the NET
in an area of convergence to the NE of the buffer circulation.
Elsewhere along the NET, only spotty clouds and showers are evident.
The NET and circulations look to drift W over the next day or two,
with a northward bend in the NET as Invest 93W moves through to the
N of Yap and Palau next week.

TRADE-WIND TROUGHS...
A weak trade-wind trough is found over Kwajalein extending NW from
near 7N169E to end near 12N166E. Scattered showers are found along
and W of the trough. This trough will continue to move W over the
next few days with little change in intensity.

OTHER SYSTEMS...

COLD FRONTS...
A cold front extends SW across 25N151E to near 20N140E, then
transitions into a shear line extending WSW to beyond 130E near 19N.
Extensive cloudiness and showers are found along and N of the cold
front and shear line to beyond 25N. Isolated thunderstorms are also
found N of the shear line. The cold front will continue to move E
with the SW end of the front continuing to transition into a shear
line, while the shear line will remain quasi-stationary.

Another weakening cold front enters the region near 20N180,
extending E to end WNW of Wake Island. A narrow band of cloudiness
and showers is found along and N of the front. The cold front will
continue to move E as the W end of the front continues to dissipate.

...ITCZ...
A very weak ITCZ extends W across the Date Line near 7N to end just
NE of Majuro near 8N172E. A narrow band of scattered showers and
isolated thunderstorms are found along the ITCZ from N of Majuro to
the Date Line. The ITCZ looks to waver N and S as it slowly spreads
W over the next few days, with little change in intensity.

$$

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