Tropical Moisture Will Bring Heavy to Excessive Rainfall with Possible Flooding This Week

Tropical moisture from the remnants of Odalys and Hurricane Polo will surge over the southwest into the central U.S. this week with several days of heavy to excessive rainfall which may bring limited to considerable flooding. Flood Watches have been issued through Wednesday in the southwest U.S. and moderate risk outlooks have been issued today through Thursday. Read More >

406
FXZS60 NSTU 280108
AFDPPG

Area Forecast Discussion
National Weather Service Pago Pago AS
208 PM SST Sun Sep 27 2026

.Short term...
TONIGHT THROUGH TUESDAY NIGHT...Strong high pressure to the south
will continue to usher strong to near gale trades tonight. As the
high pressure to the south migrates east, trades will slightly
diminish to strong and gusty flow on Monday. The weak low level
convergence over the islands will continue to hold numerous
showers tonight. This line will be pushed up north on Monday while
stable conditions move across the islands. Another high pressure
from the southwest will continue to hold strong trades and stable
weather through Tuesday night.

.Long term...
WEDNESDAY THROUGH SUNDAY...With the high pressure remaining near
the islands, strong trades and stable weather will persist through
the weekend. Models are developing a low pressure to the southwest
of the islands on Wednesday. Increase moisture and showers are
associated with this development. In connection to this system,
moisture are also expected to develop north of the islands late
during the week.

&&

.Marine...
Hazardous seas of 10 to 13 feet will persist tonight. As trades
slightly diminish on Monday, seas will also subside 9 to 12 feet.
These conditions will persist through Friday.

&&

.PPG WATCHES/WARNINGS/ADVISORIES...
Wind Advisory remains in effect
High Surf Advisory remains in effect
Small Craft Advisory remains in effect

&&

$$