722
AXPQ20 PGUM 300056
TWDPQ

Tropical Weather Discussion
National Weather Service Tiyan GU
1056 AM ChST Sun Nov 30 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...
Invest 93W, which is currently rated as sub-low continues to move
west-northwest. Currently, it`s situated south of Guam near
9N145E. The circulation is still fairly broad, weak, and
asymmetric with most of the convection located across the
northeastern half (Northwest-northeast-southeast) of the system.
This trend will continue the next several days as it continues
heading west-northwest, as the models show no strengthening or
organizational improvement is expected for at least the next few
days.

...OTHER WEATHER SYSTEMS...

NEAR EQUATORIAL TROUGH...
The NET remains quasi-stationary, entering Guam`s AOR near 8N130E.
It then stretches southeast to 4N155E, then to 1N150E before
passing through a col at Kapingamarangi, before ending at EQ160E.
This feature is largely void of convection, with the exception
from 1N150E to where it ends. Here, respectable surface
convergence is fostering scattered shower and isolated
thunderstorm development. The NET is expected to maintain a
similar orientation and convective behavior the next few days as
it remain quasi-stationary.

TRADE-WIND TROUGHS...
A trade-wind trough is located east of Eauripik near 4N145E,
stretching north-northwest to Invest 93W, continuing to 15N142E
where it ends. Fairly widespread cloud cover accompanies this
feature, with embedded pockets of scattered showers and isolated
thunderstorms. This will continue to be the case the next few
days as it heads west.

OTHER SYSTEMS...
A cold front enters Guam`s AOR at 25N180, extending southwest to
northwest of Wake Island at 21N170E. It then transitions into a
shear line as it extends west-southwest in a wave form as it
passes south of Minami Torishima and Iwo To, reaching 21N140E
before exiting Guam`s AOR at 19N130E. Widespread cloud cover with
scattered showers are occurring along and north of the shear line,
and this looks to be the case the next few days as the shear line
also remains quasi-stationary.

...ITCZ...
The ITCZ is centered from west of Namorik near 5N167E to 5N180
and beyond, mainly between 3N and 8N. Scattered showers and
isolated thunderstorms are found near the ITCZ between 166E and
175E. This fragmented area of convection is expected to continue
west the next few days, with additional pockets of convection
probable, likely tied to areas of enhanced surface convergence or
along any surface troughs embedded in the flow. The models show
good streamline convergence within the ITCZ maintaining a similar
orientation and location the next few days as well.

$$

Doll