094
AXPQ20 PGUM 090045
TWDPQ

Tropical Weather Discussion
National Weather Service Tiyan GU
1045 AM ChST Wed Apr 9 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 emerges near EQ130E and heads toward a
weak circulation near 4N137E then turns northward toward 11N136E.
Numerous showers and isolated thunderstorms cover the Republic of
Palau and far western Yap State. This trough and circulation are
expected to move gradually westward with little change of intensity.

TRADE-WIND TROUGHS...
A trade-wind trough runs from EQ146E to 7N146E. Scattered showers and
isolated thunderstorms are found in southeastern Yap State. This
trough is forecast to move gradually westward with little change of
intensity through Thursday.

UPPER-LEVEL TROUGH...
An upper-level trough enters Micronesia near 25N180 then travels
southwestward to 6N166E then westward to 4N157E. Scattered showers
and isolated thunderstorms are seen in the eastern and southern
Marshall Islands, Kosrae and southern Pohnpei State east of Nukuoro.
This trough is expected to move gradually eastward with little change
of intensity.

OTHER SYSTEMS...
A shear line enters Micronesia near 25N157E then cuts toward 15N138E.
Low-level clouds and patchy showers are found along and up to 300
miles north of this boundary, including the farthest north of the
Marianas. This line is prognosticated to weaken gradually with little
change in location.

$$

Stanko