Extreme Fire Weather Concerns for the Western U.S.; Severe Weather and Flooding Threats for the Central U.S.

Extremely critical fire weather conditions are expected to develop across the Great Basin and Southwest today, and exceptionally dry and windy conditions will promote rapid wildfire spread through the weekend. Scattered severe thunderstorms and heavy rain are possible across parts of the Ozark Plateau into lower Ohio Valley and parts of the northern Rockies into adjacent Great Plains. Read More >

843
FXZS60 NSTU 270019
AFDPPG

Area Forecast Discussion
National Weather Service Pago Pago AS
119 PM SST Fri Jun 26 2026

.DISCUSSION...
Precipitable water (PWAT) shown on model data outlines moisture
content associated with a line of clouds just north of the
islands. This line is supported by the latest satellite imageries
with clouds moving west-northwest in the trade winds flow.
However, model data continues to show a trough to the east and
northeast moving closer to the islands. This trough is expected
to arrive in the area of responsibility (AOR) by late Sunday night
and remain throughout the new week. The trough is also expected
to weaken from time to time throughout the new week. Nevertheless,
the trough will increase the potential for showers and the
possibility for thunderstorms for this time frame. By the end of
the forecast period, models show the trough migrating north as
strong south winds push it north.

Therefore, expect fair weather patterns to remain for tonight
through at least Sunday. Scattered showers with moderate to fresh
trade will remain through Sunday, increasing to numerous showers
on Sunday night. Trade winds will likely increase to a strong
breeze on Thursday from the south.

&&

.Marine...
Observations from the PacIOOS buoys show heights around 5 to 7
feet with periods around 11 seconds. Although these heights are
below the advisory threshold, model data show an upward trend in
seas, aligning with the increase in trades tonight through the at
least Sunday night. Threats of elevated seas and high surfs with
strong rip currents is expected for this time frame. Model data
show seas easing back to favorable conditions on Monday through
the end of the forecast period. Trade winds are expected to reach
a fresh breeze tonight and throughout the forecast period. In the
meantime, advisories for high surfs and small crafts remain in
effect.

&&

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

&&

$$

JTAllen