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Next 12 Hours

Forecast data from the National Digital Forecast Database.

5 Day Forecast

• Monday
• 
• High: 84 °
• Low: 73 °
• Rain Showers

• Tuesday
• 
• High: 84 °
• Low: 75 °
• Rain Showers

• Wednesday
• 
• High: 86 °
• Low: 75 °
• Rain Showers

• Thursday
• 
• High: 86 °
• Low: 73 °
• Partly Cloudy

• Friday
• 
• High: 84 °
• Low: 75 °
• Mostly Cloudy

Area forecast discussion 
National Weather Service tiyan GU 
427 PM chst Monday may 20 2013 


Synopsis... 
radar shows no showers nearby. Satellite shows a few clouds and 
possible light showers just to our east. Farther east...visible 
images and ascat analysis show clouds and surface winds associated 
with a westward moving trade-wind trough near 15n165e. 




&& 


Discussion... 
no significant changes were made at this time. Models indicate the 
trade-wind trough near 165e could arrive about Thursday and cause 
some clouds and isolated showers...otherwise a dry trade-wind 
pattern dominates the marianas. 


&& 


Marine... 
local buoys show combined seas ranging from 2 to 5 feet across 
the area. Refreshed wind grids with latest GFS and wave grids were 
adjusted slightly based on ww3 guidance. 


&& 


Fire weather... 
the kbdi will continue to climb this week and winds are expected to 
remain below red flag criteria through the next few days. 


&& 


Eastern micronesia... 
showers have remained just east of Majuro all day with very little 
westward movement. A few low clouds continue to push toward 
Majuro...but west winds above 13kft seem to be keeping showers to 
the east. Models follow this trend in keeping showers confined to 
the east before tapering off. European model (ecmwf) shows a few more showers 
reaching Majuro overnight. Convection remains over Kosrae and very 
near Pohnpei. Scattered showers will persist for the night at Kosrae 
while Pohnpei sees only isolated showers as heavier showers remain 
just to the south. Convection south of Pohnpei will gradually shift 
westward over the next couple of days and the region will see 
slightly drier conditions the remainder of the week. 


&& 


Western micronesia... 
a small cluster of showers near Chuuk this morning tapered off by 
afternoon and satellite imagery shows clearing middle and upper level 
clouds nearby. Models show a trade-wind disturbance near Pohnpei and 
Kosrae spreading westward to near Chuuk Tuesday though Thursday. 
However...the bulk of showers is expected to pass just south and 
keep skies mostly cloudy over Chuuk. A weak surface trough east of 
Yap and Koror will bring a short round of scattered showers to Yap 
this evening until around midnight. For Koror...showers will remain 
isolated but light winds Tuesday could allow for island convection 
during the day. Beginning Tuesday night...both Yap and Koror will 
see dry conditions back in place. 


&& 


Gum watches/warnings/advisories... 
GU...none. 
Marianas waters...none. 
&& 


$$ 


Simpson/W. Aydlett