Critical fire weather conditions are likely to persist over parts of California and the Plains through Thursday. Elsewhere, a pair of cold fronts will deliver wet and stormy conditions to the eastern U.S. into Wednesday. Much cooler air will arrive in wake of the frontal passages with a return to below normal temperatures. Read More >
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| PTWC has not issued any messages for the Pacific Ocean Basin in the last 6 hours |
000
FXZS60 NSTU 300129
AFDPPG
Area Forecast Discussion
National Weather Service Pago Pago AS
229 PM SST Tue Sep 29 2020
.Short term...
TONIGHT THROUGH THURSDAY NIGHT...A stationary ridge to the south
will continue to hold breezy east winds tonight before moving
southeast on Wednesday. With this movement, winds will also
diminish to gentle flow on Wednesday through Thursday. RAOB from
this afternoon depicted a dry and stable profile. Another high
pressure will build south of the islands on Thursday, will
increase east winds over the region on Thursday night. However, a
shortwave trough from the east is now expected to sweep across the
islands on Thursday, bringing increasing showers on Thursday and
Thursday night.
.Long term...
FRIDAY THROUGH TUESDAY...A low developing near Fiji will hold east
winds over the islands through the beginning of the new week. With
the low remaining to the southwest of the islands and a high
pressure migrating eastward, scattered showers will remain through
the new week. Winds are expected to increase on Thursday night
and persist through Sunday night. With the high pressure moving
farther southeast of the islands, winds will diminish to gentle
flow on Monday.
&&
.Marine...
Seas have slightly build 6 to 8 ft due to breezy flow over the
islands since this morning. This rough conditions will persist
tonight before subsiding below advisory levels on Wednesday. On
Thursday, winds are expected to increase across the area building
seas again above advisory levels on Thursday night. With the high
pressure sweeping south of the islands and moving farther
southeast on Monday morning, seas will also drop below advisory
levels on Monday. No other significant swells or wind generated
seas are expected to move across the area afterwards.
&&
.PPG WATCHES/WARNINGS/ADVISORIES...
Small Craft Advisory is in effect through late tonight.
&&
$$
Malala
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