337
AXPQ20 PGUM 190100
TWDPQ

Tropical Weather Discussion
National Weather Service Tiyan GU
1100 AM ChST Wed Aug 19 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...

TROPICAL CYCLONES...
Tropical Depression 17W is currently centered near 8.6 degrees north
latitude and 154.8 degrees east longitude. It is moving west-northwest
at 6 mph and has maximum sustained winds of 30 mph. Torrential rain
and scattered thunderstorms are found within 120 miles of 7N153E. TD
17W is expected to turn toward the northwest with an increase in
forward speed. TD 17W is also expected to intensify, possibly rapidly
intensifying beginning sometime Thursday or Friday. The latest
forecast track depicts an eventual passage through the far northern
Mariana Islands this weekend.

For more information please refer to bulletins from the Joint
Typhoon Warning Center under WMO header WTPN31 PGTW and from the
National Weather Service under WMO header WTPQ31 PGUM.

...OTHER WEATHER SYSTEMS...

MONSOON TROUGH...
The monsoon trough enters the WFO Guam Area of Responsibility near
20N130E, passing through Invest Area 94W, which is moving out of the
WFO Guam Area of Responsibility. The trough then curves east-southeast
toward Saipan in the CNMI, near 15N145E, then curves east-southeast
toward Tropical Depression 17W near 9N155E. It finally then curves
eastward to around 5N180.

Scattered showers and isolated thunderstorms are found near the trough
well north of Palau, just east of Yap, around the Marianas, near Chuuk
and throughout Eastern Micronesia. Over the next few days, the monsoon
trough is expected to show little change in strength or position.

$$

Stanko