Showers and Storms in the East; Dangerously Hot and Dry in the West

A frontal boundary will bring scattered showers and storms to portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Intermountain West and expand into the Central U.S. by early next week. Elevated wildfire conditions will develop across portions of the Northern/Central Plains and air quality issues will persist in the Northwest. Read More >

951
FXZS60 NSTU 050122
AFDPPG

Area Forecast Discussion
National Weather Service Pago Pago AS
222 PM SST Tue Aug 4 2026

.Discussion...
Drier conditions are observed across the territory as a ridge
strengthens from the southwest. This feature will dominate the
weather pattern for the forecast period. Expect isolated to
scattered showers to persist through the new week, while winds are
forecast to build tonight to 20 mph. Model guidance suggests
winds reaching advisory criteria (25 mph or higher) after midweek
as the ridge continues to strengthen. Additionally, windy
conditions are expected to persist through the weekend. Meanwhile,
a trough to the north of the ridge could enhance showers embedded
within the trade wind flow by Friday.

As the high pressure associated with the ridge moves east,
expect winds to shift east by Sunday. The trough to the north is
forecast to move closer to the Islands bringing an uptick in
showers, but this pattern appears too far out to know the risk of
flash flooding. Nonetheless, the high pressure is anticipated to
maintain windy weather through Tuesday.

&&
.Marine...
Latest wave heights observed at the PacIOOS buoy are around 7 to 9
feet with peak periods up to 14 seconds. A strong south swell
combined with increasing south-southeast winds will keep ocean
conditions elevated through the new week. Furthermore, near-
advisory winds expected Thursday night may elevate wave heights to
High Surf Warning criteria (over 15 feet). Mariners and beachgoers
are strongly advised to heed warnings and advisories put forth by
officials for the next few days.

.PPG WATCHES/WARNINGS/ADVISORIES...
High Surf Advisory
Small Craft Advisory

&&

$$

TM