
Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >
801
FXZS60 NSTU 200007
AFDPPG
Area Forecast Discussion
National Weather Service Pago Pago AS
107 PM SST Fri Jun 19 2026
.DISCUSSION...
Partly sunny skies with moderate south winds continue to remain
across the islands throughout the day. The latest satellite
imageries show a low pressure system to the southeast with a
trough attached. The trough is expected to continue to move away
from the area as the aforementioned low pressure pulls it away.
Also, a high pressure system to the south will continue to
migrate east as it pushes the trough further north and east of the
area. Showers embedded within the south wind flow will move
across the area from time to time, bringing scattered showers for
the weekend. Flash flooding conditions are not expected for this
forecast period.
Long term model projections has the high pressure system migrating
further east as winds turn east-southeast on Monday through the
rest of the forecast period. Expect gentle to moderate east-
southeast winds with scattered showers for the new week.
&&
.Marine...
As the aforementioned high pressure system to the south continues
to produce moderate to fresh south winds, seas will also build to
hazardous conditions. Model data show seas gradually building to
advisory thresholds throughout the day and remain through at least
Sunday night. By late Sunday into Monday, seas and winds will
subside to more favorable levels. Thus, advisories for small
crafts and high surfs are now in effect through at least Sunday
night. The threat of elevated seas, dangerous surfs and strong rip
currents will impact south shores tonight through Sunday night. No
other swell is expected for the rest of the forecast period.
&&
.PPG WATCHES/WARNINGS/ADVISORIES...
Small Craft Advisory
High Surf Advisory
&&
$$
JTAllen