Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

698
FXZS60 NSTU 240036
AFDPPG

Area Forecast Discussion
National Weather Service Pago Pago AS
136 PM SST Wed Sep 23 2026

.DISCUSSION...
The latest satellite imageries continue to show a trough
stregthening and weakening from time to time. For the last couple
of hours, observations of the satellite imageries show deep
convections with heavy showers and thunderstorm activity slowly
expanding from Savai`i Island to Upolu Island. Observations from
this afternon`s upper air confirms these conditions over the area.
addtionally, model data show these convections moving over the
area by late this afternoon into tonight, Expect numerous to
widespread showers for tonight through at least Thursday evening
with the potential for thunderstorms. Winds will also remain at a
moderate to fresh east breeze for this time frame. Flash flooding
is possible for this period.

By Friday morning, winds will shift southeast as a high pressure
system from the southwest moves into the area. These winds will
likely push the aforementioned trough northward as it produces
brief passing showers. Winds are expected to peak at a strong
southeast breeze on Saturday night through at least Sunday night.
This may prompt a wind advisory. Winds will begin to decrease by
the end of the Forecast period. Expect showers and winds tp
decrase as the new week progresses..

&&

.Marine...
Elevated seas with peak periods reaching more than 13 seconds long
continue to remain over the area.this prompted the issuance of
advisories for high surfs and small crafts in the last 18 hours.
These conditions will likely reamin for the rest of the day
through early Thursday morning. Model data show seas subsiding
again by Thursday and Thursday night. By Friday, a large
southwest-south swell is expected to move into the area and remain
through the new week. With winds expected to peak at a strong
breeze on Saturday and Sunday, ocean conditions are expected to
remain hazardous for this time frame. Thus, the advisories for
small crafts and high surfs will remain in effect. The threat of
hazardous seas, dangerous surfs, and strong rip currents remains
for tonight through at least Thursday morning.

&&

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

&&

$$

JTAllen