Heat and Fire Weather Concerns West; Heavy Rain and Thunderstorms from Plains to mid-Atlantic

Thunderstorms and locally heavy rainfall is expected from the Central Plains to the Ohio Valley, mid-Atlantic and across the Southeast. Severe weather from the Upper Midwest to Central Plains increases on Friday. Major to Extreme HeatRisk continues across the Southern Plains to the lower Mississippi Valley late this week. Fire weather concerns for the northern Rockies and northern Plains today. Read More >

185
FXZS60 NSTU 100046
AFDPPG

Area Forecast Discussion
National Weather Service Pago Pago AS
146 PM SST Wed Sep 9 2026

.Short term...
TONIGHT THROUGH FRIDAY NIGHT...A ridge south of the territory will
maintain gentle easterly winds. Models keep the deeper tropical
moisture displaced from the islands, while shallow moisture
embedded within the trades moves west across the islands. Expect
mainly passing showers with longer periods of dry weather between
showers.

.Long term...
SATURDAY THROUGH WEDNESDAY...Low level convergence will increase
showers over the islands on Saturday night as the trades
strengthen to a breezy flow. This unstable weather pattern will
remain over the islands through next week Wednesday.

&&

.Marine...
Seas of 5 to 7 feet will persist tonight through Saturday. As the
trades increase to breezy flow and southern swells arrive, seas
will build rough conditions on Saturday night. These rough
conditions will persist through the beginning of the new week.

&&

.PPG WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$