392
WWPQ82 PGUM 190824
SPSPQ2

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TIYAN GU
624 PM ChST Sun Jul 19 2026

PMZ172-200830-
CHUUK-
624 PM ChST Sun Jul 19 2026

...A TROPICAL DISTURBANCE MOVES NORTHWARD AND WEAKENS...

A tropical disturbance, Invest 90W, has shifted north of Chuuk State
and has weakened. As a result, the Joint Typhoon Warning Center has
closed this Invest. Periods of locally heavy showers will continue
to be associated with a monsoon pattern across western Micronesia
over the next few days. An area of diffluence between the remnants of
90W and a broad circulation south of the equator is fragmenting the
leading edge of the monsoon pattern over Chuuk State this evening.
Still, light to moderate westerly winds and scattered to numerous
showers continue through midweek due to the proximity of the monsoon
trough.

This will be the last Special Weather Statement issued for this
event. For more information, residents and mariners should monitor
the latest forecasts for the region at
weather.gov/gum/PublicForecasts and any information shared by WSO
Chuuk.

$$

PMZ161-171-200830-
KOROR PALAU-YAP-
624 PM ChST Sun Jul 19 2026

...A DEVELOPING MONSOON PATTERN MAY BRING HEAVY DOWNPOURS...GUSTY
WINDS...AND CHOPPY SEAS THE NEXT SEVERAL DAYS...

A developing monsoon pattern is producing fresh west-
southwesterlies and a surge of numerous to widespread locally heavy
showers and thunderstorms, accompanied by strong to near-gale gusts.
There is some indication that a monsoon disturbance may gradually
form to the north-northeast, which could lead to an intensified
monsoon surge across Palau and Yap. Model trends indicate 3 to 5
inches of rainfall through midweek. There is an estimated 2 to 4
inches of additional rainfall in the latter half of the week, with
higher amounts possible depending on when the monsoon trough begins
to shift northward. Prolonged periods of heavy downpours may produce
minor flooding at times. Choppy seas from localized wind waves and a
developing westerly swell are already creating challenging
conditions for small craft. With the monsoon pattern gradually
strengthening over the next few days, sustained winds look to exceed
hazardous levels of 22 kt around Tuesday night.

For more information, residents and mariners should monitor the
latest forecasts for the region at weather.gov/gum/PublicForecasts
and any information shared by WSO Palau and WSO Yap for their local
regions.

$$

Cruz