Area Forecast Discussion
Issued by NWS

Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
000
FXPQ60 PGUM 212002
AFDPQ

Area Forecast Discussion
National Weather Service Tiyan GU
602 AM ChST Fri Jun 22 2018

.Marianas Synopsis...
Moderate trade winds and isolated showers are present across the
Marianas, with 3-5 ft seas at the buoys.

&&

.Discussion...
Little change has been made to the forecasts, with partly cloudy
skies, isolated showers, and seas slowly diminishing toward 3 feet
by early next week. But the GFS and ECMWF are coming into fair
agreement on a weak, broad trough bringing an increase in moisture
early next week--Monday in the GFS and Tuesday in the European
model. But the feature is rather weak and vaguely defined in the
models, so will wait another run or two before making changes to the
forecast. In the meantime, this coming weekend looks dry with gentle
winds and plenty of sunshine.

&&

.Eastern Micronesia...
Kosrae, Majuro and Kwajalein are all encountering 10 to 15 knot winds
this morning, mostly in showers. The GFS washes the near-equatorial
trough out, which erases the convection, which relaxes the wind. So,
by Saturday, winds should diminish to between 5 and 10 knots. The
decrease in wind speed should allow combined seas to diminish by a
foot as well. The seas are already fairly low, but this doesn`t
mean they cannot head lower. With winds 15 knots or less, seas 5 feet
or less and little thunderstorm activity expected this weekend,
little in the way of weather-related hazards is expected in Eastern
Micronesia through the forecast period. However, there will be a
few thunderstorms today and they will pick back up again Monday.

&&

.Western Micronesia...
Except for some thunderstorms possible near Chuuk today, the weather
looks particularly quiet in Western Micronesia the next several days.
Isolated showers, variable winds of 5 to 10 knots and seas of 2 to
4 feet will be the general rule. Seas will be slightly higher at
Chuuk, the emphasis is on slightly though. The slight ripples in the
wind flow will not accomplish much more than just increasing sky
cover to mostly cloudy at times. For now the monsoon trough has
merged with the Mei-Yu front near Taiwan and Japan, however, it
will be back again.

&&

.GUM WATCHES/WARNINGS/ADVISORIES...
GU...None.
Marianas Waters...None.

&&

$$

Middlebrooke/Stanko



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.