National Weather Service United States Department of Commerce

Summer Heat for the West; Monsoonal Moisture Continues for Southwest and Southern Rockies

Summer heat will continue for areas of the west coast where high temperatures may approach or exceed the century mark. Monsoonal moisture along with the threat of flash flooding continues over parts of the Southwest and southern Rockies through Tuesday. Further east, a cold front is expected to bring a break to the heat as showers and thunderstorms are forecast from New England to the Gulf Coast. Read More >

FXZS60 NSTU 270035

Area Forecast Discussion
National Weather Service Pago Pago AS
135 PM SST Sun Jun 26 2022

.Short term...

Even though wind conditions are now under the Wind Advisory
criteria, we are still expecting easterly trades to continue
through the week. The strong high pressure system centered to the
south of American Samoa, which has been responsible for giving
American Samoa strong winds throughout late this past week and
this weekend, is moving westward. However, another weak high
pressure system will move to the south of American Samoa early
this week to keep the easterly trade winds around 15 to 20 mph
compared to 20 to 30 mph that was recorded throughout the past
week. Otherwise, a shear line trough over the territory will
continue to weaken throughout the next few days. Even though rain
is likely through the rest of the evening, rainfall is to be in
the form of passing showers. The risk of passing showers is
reduced to scattered through the middle of the upcoming week.

.Long term...

No major changes in the weather pattern are expected to occur from
late week through next weekend. The easterly trade winds of around
15 to 20 mph will resume and passing showers.



The latest information from the PacIOOS buoy shows seas are
finally slowly subsiding, but still around 10 feet to the east of
Aunu`u. Seas are to continue to subside overnight tonight and
should bring the surf to the higher end of the High Surf Advisory
levels through at least Monday. The easterly breeze is expected
to decrease from a fresh/strong breeze to a moderate/fresh breeze
by Monday and remain through the rest of the week. Even though the
southerly swell will have less of an influence thoughout the rest
of the week. The easterly trades are forecast to keep the sea
heights to around 8 feet on Monday and Tuesday.



A High Surf Warning remains in effect.
A Small Craft Advisory remains in effect.