Area Forecast Discussion
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FXPQ60 PGUM 222024
AFDPQ

Area Forecast Discussion
National Weather Service Tiyan GU
624 AM ChST Tue May 23 2017

.Marianas Synopsis...
Satellite shows deep convection firing up west of the islands near
140E, but radar shows only a few sprinkles in the Marianas waters.
Seas are running 3 to 5 feet, with moderate trade winds.

&&

.Discussion...
Based on satellite/radar and latest GFS, have forecast only a slight
chance for showers today. The rest of the forecast is virtually the
same as previous, with only isolated showers and diminishing winds
the next few days as a surface ridge remains in the region.

&&

.Marine...
Winds and seas are expected to diminish slightly for Wed-Thu as the
ridge loosens the pressure gradient, but should then increase again
Friday as the ridge moves a little north and the gradient tightens.


&&

.Eastern Micronesia...
Trade-wind convergence continues to trigger showers and thunderstorms
throughout the region, but satellite imagery shows much of the
convection out in the open ocean. The cluster of showers east of
Majuro will reach the atoll later today. Showers there will persist
through tonight before diminishing Wednesday. The band of trade-wind
convergence will lift northward the next couple of days, bringing
increased showers to Kosrae tonight and Pohnpei Wednesday.

Fresh to strong trade winds persist around Majuro so have maintained
the small craft advisory for winds through tonight. Winds are
expected to decrease late tonight and Wednesday morning.

&&

.Western Micronesia...
A surface trough just east of Yap will move over the island today and
bring scattered showers and a few thunderstorms to the area today.
Koror will see its weather deteriorating tonight and Wednesday as the
trough reaches Palau. Drier weather is expected by late week.

Chuuk weather will remain fairly quiet today with showers and
thunderstorms staying to the southeast. Later in the week, increasing
trade-wind convergence will cause showers and thunderstorms to spread
into Chuuk State, possibly bringing wet conditions in for the
weekend.

&&

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

&&

$$

Middlebrooke/W. Aydlett



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