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WWMY80 PGUM 020508
SPSGUM

Special Weather Statement
National Weather Service Tiyan GU
308 PM ChST Wed Sep 2 2026

GUZ001-MPZ001>003-020715-
Guam-Rota-Tinian-Saipan-
308 PM ChST Wed Sep 2 2026

...HEAVY SHOWERS AND GUSTY WINDS POSSIBLE THROUGH THURSDAY NIGHT...

A large and disorganized tropical disturbance is located northeast
of Saipan and is producing isolated to numerous, locally heavy
showers and isolated thunderstorms. This system is expected to move
just north of the Marianas over the next day. A col remains over the
CNMI that is keeping winds light. However, a developing monsoonal
flow into the system is expected to increase the winds beginning
tonight over all islands. Sustained winds of 15 to 25 mph will be
possible with gusts of 30 mph. Guam will be more likely to recieve
higher winds and heavier showers. The unstable airmass and high
precipitable water values may allow for heavy showers to develop,
creating a potential flooding risk. The monsoon flow is expected to
be strongest over Guam but high uncertainty remains in where the
highest rainfall amounts will occur and there may be breaks between
instances of heavy rainfall.

$$

Ogle