Area Forecast Discussion
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FXPQ60 PGUM 200615

Area Forecast Discussion
National Weather Service Tiyan GU
415 PM ChST Sun May 20 2018

.Marianas Synopsis...
Conditions are quiet across the Marianas this afternoon, with light
winds, 3-4 ft seas, and isolated showers; mainly caused by island


Light winds and isolated showers are expected the next few days, with
no significant weather systems in the works for the next week. Seas
will remain rather low, just enough for a moderate rip risk along
eastern shores.


.Eastern Micronesia...
Satellite shows a broad trade-wind disturbance with showers and a
few thunderstorms edging westward across Pohnpei State into Chuuk
State this afternoon, and a thunderstorm has already been reported
over Weno Chuuk. Showers persist over northern Kosrae State and the
northern Marshall Islands, but weather has improved at both Kosrae
and Majuro. Weak surface ridging and relatively dry weather should
persist for Majuro and Kosrae thru Monday, with improving weather
moving toward Pohnpei on Monday and Chuuk on Tuesday. Later, another
disturbance will likely arrive in eastern Micronesia from the east
on Tuesday or Wednesday.

The combination of building trade-wind swell and wind waves along
with a moderate southeasterly swell will cause seas and surf to
gradually rise across the area for the next several days. The risk
of rip currents will become higher along east facing shores across
the area. Surf on Kosrae might reach hazardous levels Monday night
or Tuesday.


.Western Micronesia...
A weak surface trough stretches eastward from 8N130E between Koror
and Yap to about 8N140E. Satellite shows only spotty showers near
the trough. Light winds and isolated showers are expected over far
western Micronesia the next couple of days, then models indicate a
little deeper moisture and a few more showers could arrive from the
east by Wednesday.


Marianas Waters...None.


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