Chuuk, Federated States of Micronesia Weather Conditions

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Current Conditions

  • 82°
  • Overcast
  • Wind: NE 22 mph
  • Humidity: 74%
  • Visibility: 10.0 miles
  • Dew Point: 73°
  • Pressure: 29.88 in. +
  • Heat Index: 88

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Next 12 Hours

Forecast data from the National Digital Forecast Database.

5 Day Forecast

Forecast for Chuuk, Federated States of Micronesia

Updated: 7:00 PM ChST on November 01, 2014

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NWS Forecaster Discussion

Area forecast discussion...updated 
National Weather Service tiyan GU 
615 PM chst Friday Nov 28 2014 

Marianas synopsis... 
an area of scattered showers associated with an old and narrow shear 
line extends eastward from just east of Guam to near 13n152e. 
Upper-level divergence has been firing up a few thunderstorms along 
the shear line near and to the west of Guam. Next significant 
weather maker still appears to be a surface trough currently 
approaching Kosrae. 


GFS initializes shear line the best...bringing scattered showers to 
Guam overnight...then the boundary slides southwestward and Ushers 
in a drier air mass for the remainder of the weekend. Kept thunder 
in the forecast for Guam as favorable upper-level environment 
appears to be hanging around. Reduced cloud cover and probability of precipitation for Rota 
northward due to the narrowness of cloudiness associated with the 
shear line. Night shift will need to monitor the progress of the 
shear line to make sure mesoscale short term forecast adjustments 
are not needed. Models still remain bullish on the system currently 
approaching Kosrae...eventually tracking it south of Guam on Tuesday 
and Wednesday next week. For now...broad brushing the forecast via 
mostly cloudy/isolated shower wording Tuesday through Thursday 
should cover the time frame this system will be passing through. 
Once again...drier trades are expected to build back in for the end 
of next week. 


latest model runs and satellite trends suggest low pressure 
approaching Japan will not be weakening the subtropical ridge quite 
as fast as earlier anticipated. Therefore...have extended the Small 
Craft Advisory for marianas waters until 5 PM Saturday afternoon. 
Otherwise...still expect seas to gradually subside early next week 
as north swell energy replaces trade-wind swell energy. At this 
time...still expect north swell heights to peak below heights 
necessary to generate high surf on respective exposures. If system 
currently approaching Kosrae does develop... small craft and high 
surf advisories will be possible once again by the middle of next 


Updated to add micronesia discussion 

Eastern micronesia... 
convection associated with a surface trough affecting Majuro has 
moved westward and is now affecting Kosrae. This trough will affect 
Pohnpei with scattered showers and isolated thunderstorms Saturday 
and Saturday night. Models forecast this trough to develop into a 
circulation as it moves quickly towards the west. Somewhat drier 
conditions will build in over Majuro and Kosrae following the 
disturbance. However...models consistently depict a band of 
trade-wind convergence to set up across the region between 6n and 
9n. This will bring wetter weather to Majuro and possibly Pohnpei 
early next week. 

High surf advisory remains in effect for east-facing reefs at 
Kosrae. Hazardous surf will persist at Kosrae through tonight. 


Western micronesia... 
drier weather moved into Chuuk this morning after a round of showers 
and thunderstorms late Thursday night. Therefore...fresh northeast 
trades and only isolated showers are expected through Saturday. The 
disturbance over Kosrae tonight will bring scattered showers and 
isolated thunderstorms to Chuuk late Saturday and Sunday. Models 
spin this disturbance into a circulation...passing south of Chuuk 
Sunday morning. Convergence behind the circulation will maintain 
unsettled weather into early next week. 

For Yap and Palau...showers and thunderstorms are persisting near 
these locations this evening...but conditions are going to improve 
at Yap later tonight. A broad but weak circulation south of Yap and 
Koror will keep to the south as it heads west and maintain a broad 
area of low-level convergence focusing over Koror. Saturday and 
Sunday will be a little drier but still the overall pattern will be 
fairly unstable. GFS shows the circulation that develops from the 
trough now near Kosrae will progress westward and be near Yap on 
Wednesday. Will have to keep a close watch in the long-term to see 
how this evolves. 


Gum watches/warnings/advisories... 
Marianas waters...Small Craft Advisory until 5 PM chst Saturday 
for pmz151>154. 




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