626
AXPQ20 PGUM 210023
TWDPQ

Tropical Weather Discussion
National Weather Service Tiyan GU
1023 AM ChST Fri Jun 21 2024

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...

MONSOON TROUGH...
A monsoon trough enters the region at 10N130E, extending southeastward
to a weak circulation located at 8N133E. General cloudiness and
clusters of heavy showers are associated with this feature. The
monsoon trough and weak circulation are expected to move west-
northwestward over the next several days and out of the AOR this
weekend.

TRADE-WIND TROUGHS...
A trade-wind trough between Chuuk and Guam is generating showers and
thunderstorms between the two locations. This trough will slowly head
west the next couple of days with convection largely passing just to
the south of Guam.

TUTT...
A Tropical Upper-Tropospheric Trough (TUTT) cell is centered near
18N172E, or east-southeast of Wake Island. General cloudiness with
pockets of deep convection, mainly along the southeast quadrant of
the cell. Models show the TUTT cell moving west-southwest over the
next several days, possibly reaching the Marianas around the middle
of next week.


ITCZ...
The Inter-Tropical Convergence Zone(ITCZ) enters the region at 4N180E
or east of Majuro, then meanders generally westward to 4N168E, then
south of Kosrae near 3N159E and on to 5N154E. Clusters of heavy
showers and some thunderstorms are seen along and north of the ITCZ
south and east of Majuro and south and east of Kosrae. Models show
the ITCZ will fragment into individual trade-wind troughs this
weekend before dissipating early next week.

$$

Kelly