Chuuk, Federated States of Micronesia Weather Conditions

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Current Conditions

  • 79°
  • Partly Cloudy
  • Wind: East 21 mph
  • Humidity: 84%
  • Visibility: 10.0 miles
  • Dew Point: 74°
  • Pressure: 29.82 in. 0

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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 
National Weather Service tiyan GU 
353 PM chst sun Dec 21 2014 

Marianas synopsis... 
fresh to strong trade winds and isolated light showers are present 
across the marianas and for several hundred miles upstream to the 
east. Seas of 9 to 10 feet are indicated at the ritidian and ipan 


refreshed the wind grids from the latest guidance...but no large 
changes to the forecasts resulted. Fresh to strong winds will drop 
off slightly Monday and Monday night...then ramp back up Tuesday 
and Wednesday with breezy conditions returning. Showers will be 
isolated the next few days...with the best chance of a shower late 
tonight and again Tuesday and Tuesday night. 


as mentioned above...winds will drop a bit Monday and Monday 
night...then become fresh to strong again for Tue-thur. But combined 
seas will remain at 9 to 11 feet or so...with some 12-foot seas 
likely in the eastern waters Tuesday night into Thursday. Therefore... 
have extended the Small Craft Advisory through Thursday night. 

The high surf advisory for north facing reefs is now history...but 
a new advisory is likely by Wednesday along east facing reefs as 
renewed trade-wind swell reaches 9 feet or more. 


Eastern micronesia... 
moderate to fresh trade winds are expected to continue over the 
region through the end of the week. Fair weather has returned to 
Pohnpei this afternoon and is expected to continue through Tuesday 
morning. A weak trade-wind disturbance over the Marshalls is slowly 
progressing westward and is expected to bring increasing convection 
to Majuro late tonight. This system will move westward bringing 
unstable conditions to Kosrae and Pohnpei Monday with scattered 
showers expected at Kosrae a little later than the previous forecast. 
Once this disturbance and the converging winds behind it clear out 
of the region...fair conditions are expected to return to Majuro 
Tuesday and to Kosrae and Pohnpei by Thursday. 

Latest altimetry and wave models indicate large east-northeast 
trade-wind swell will continue to build over the entire region. This 
will maintain sea heights at levels that are hazardous to small 
craft at Pohnpei and Majuro through the week. Seas are expected to 
increase to hazardous levels for Kosrae Monday morning. Hazardous 
surf of 7 to 9 feet is already present at Kosrae and is expected to 
continue to build through the next day or two...reaching levels of 8 
to 11 feet by Tuesday. As the seas continue to build over the 
region...hazardous surf conditions are likely at Majuro Monday and 
Pohnpei Tuesday. These conditions will coincide with the Spring high 
tides at Majuro making coastal inundation likely across Majuro and 
nearby atolls. Residents on all the mentioned locations need to stay 
alert to the latest advisories issued by the National Weather Service 
and instructions from their local emergency management offices. 


Western micronesia... 
a band of convergence over Chuuk is maintaining isolated showers 
over weno this afternoon. As the band continues to drift 
westward...expect fair weather to return to Chuuk for the beginning 
of the week. A trade-wind disturbance will approach Chuuk from 
eastern micronesia on Tuesday...bringing wet conditions back to the 
state for a couple of days. As this disturbance moves on to the 
west...fair weather will return to Chuuk for the end of the week. 

Trade-wind convergence is generating scattered showers and a few 
thunderstorms north of Koror and east of Yap this afternoon. This 
band of convergence and associated showers will continue to drift 
westward through Monday night...but will remain close enough to 
both locations to keep a slight chance of thunder in the forecasts. 
Fair conditions are expected to push in from Chuuk by Tuesday and 
continue for a couple of days. For the last half of the week...a 
trade-wind disturbance is expected to move in from Chuuk to bring 
another round of unsettled weather to both Yap and Koror. 
Maintained the forecast for isolated showers for now...but if 
conditions develop as predicted by the models...scattered showers 
are a possibility. 

Building trade-wind swell and wind waves has caused sea heights to 
reach hazardous levels for small craft operation across Chuuk. Seas 
are expected to continue to build over the next couple of days and 
could produce hazardous surf conditions at Chuuk by Tuesday. 
Although seas have subsided a bit at Yap and Koror...hazardous 
conditions are possible again later in the week as the larger 
trade-wind swell approach the region from Chuuk. 


Gum watches/warnings/advisories... 
Marianas waters...Small Craft Advisory until 6 am chst Friday for 




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