732
AXPQ20 PGUM 030039
TWDPQ

Tropical Weather Discussion
National Weather Service Tiyan GU
1039 AM ChST Wed Jun 3 2026

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 NET remains anchored in place to where it has been the last
day or two, entering Guam`s AOR at 8N130E and continuing eastward
to a broad area of low pressure, now centered over Eauripik in
central Yap State. It (the NET) then continues eastward through
Chuuk, Pohnpei, Kosrae, and Majuro in a semi-wavy form, before
exiting Guam`s AOR at 8N180. Convection continues to fire along
and just north of the Eauripik circulation and NET, becoming
confined to near the NET and south of it from 145E to the Date
Line. The NET looks to remain in place the next several days with
a similar convective pattern expected.

TUTT...
Today, the TUTT enters Guam`s AOR near 25N177E. It passes through
Wake Island, where the nearby cell from yesterday has dissolved.
The TUTT then continues southwest as it passes through a col
centered near 10N154E (northeast of Chuuk), turning south-
southeast to pass through an inflection point southwest of
Pohnpei near 5N155E, before continuing west to a col near Koror
at 6N134E. Here, it turns north and passes through a cell
northwest of Koror and Yap near 14N133E, with the TUTT ending at a
col north-northeast of there at 12N135E. The greatest
concentration of moisture and convection is found to the south and
east of the TUTT, especially east of 160E where moderate
divergence northeast of Pohnpei becomes strong southeast of Wake
Island. In general, this TUTT pattern looks to continue for
another 48 hours. After that, the upper-level pattern will
reorientate itself.

...ITCZ...
The ITCZ has expanded much further west, which is also much
quicker than models progged. Today, the ITCZ remains centered near
8N, as it aligns with the NET, but cross-equatorial flow in the
streamline analysis is readily apparent from Eauripik in central
Yap State eastward to the Date Line and Beyond. This looks to
continue for several days with fairly expansive convection
probable between the equator and 10N, as this setup looks like the
atmosphere it preconditioning itself for a prolonged westerly
flow/WWB event. Typically this "steadfast pattern" evolves a good
week to 10 days before WWB`s become more prominent. Stay tuned!

$$

Doll