081
AXPQ20 PGUM 100019
TWDPQ

Tropical Weather Discussion
National Weather Service Tiyan GU
1019 AM ChST Mon Nov 10 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...

TRADE-WIND TROUGHS...
A few trade-wind troughs span much of eastern Micronesia, with most
remaining largely indistinguishable from the background trades. The
more notable ones are integrated within the ITCZ in eastern
Micronesia, producing scattered to widespread showers and isolated
thunderstorms in two sectors mentioned in the ITCZ section below.
These troughs are expected to continue to move west along with the
ITCZ, remaining largely transient in nature over the coming days.

OTHER SYSTEMS...
A minor ridge has developed in western Micronesia, stretching from
the northeastern Indonesian islands of Fani and Bras to the north
across Palau to then end well north-northeast near Iwo To. Some
westerly-moving thunderstorms are observed along the southern fringes
of the ridge, being pushed in by monsoonal outflow boundaries west of
130E, resembling a localized anticyclonic buffer circulation. This
ridge will continue to shift west over the coming days as it chases
Fung-wong, allowing a potential tropical disturbance to move in as it
exits western Micronesia.

...ITCZ...
The Intertropical Convergence Zone (ITCZ) enters the region near
9N180, to then extend west across much of eastern Micronesia, to end
just southeast of Chuuk. Moderate to occasionally deep convection is
associated with this feature, producing scattered to widespread
showers and isolated thunderstorms in two sectors; between the
Equator and 9N from 152E to 162E across Chuuk and Pohnpei States, and
between 6N and 11N from 170E to the Date Line across the Marshalls.
Convection embedded within the ITCZ is expected to peak in the second
sector near the Marshalls and persist as it moves west, meanwhile
the first sector near Chuuk will continue to deepen as a tropical
disturbance attempts to develop in this general area as early as
Tuesday.

$$

Montvila