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AXPQ20 PGUM 012136

TWDPQ 



Tropical Weather Discussion

National Weather Service Tiyan GU

736 AM ChST Fri Jun 2 2023



Tropical Weather Discussion for the Western North Pacific between

the Equator and 25N from 130E to 180. The following information is

based on recent satellite imagery/data, weather observations, radar,

and meteorological analysis.



...SIGNIFICANT/SPECIAL FEATURES...



TROPICAL AND MONSOON DISTURBANCES...

A circulation is located to the east of Yap near 6N142E. A 

surface trough extends from 1N130E through the circulation to 

3N144E. Spotty convection is located over Palau and Yap between 

3N and 10N from 133E to 143E. Modest convection can be found south

of the trough southwest of Chuuk between the equator and 4N from

145E to 153E.



OTHER FEATURES CAUSING GALE FORCE WINDS OR HAZARDOUS SEAS...

Tropical Storm Mawar (02W) located near 27N129E continues to 

cause seas between 15 to 20 feet between 22N and 25N from 130E to 

135E.



...OTHER WEATHER SYSTEMS...

TRADE-WIND TROUGHS...

A trade-wind trough combined with upper-level divergence is

generating a line of showers and thunderstorms from between Chuuk

and Pohnpei and east of the Marianas. 



...ITCZ...

The ITCZ extends from 160E to 170E up to 9N and is generating

convection north of Kosrae and over Majuro.



...DISCUSSION...

The circulation east of Yap will move north to a location east of

Ulithi. Convection will continue between Yap and Chuuk States. 

Convergence north of the circulation will increase convection over

the Marianas. The trade-wind trough east of the Marianas will 

move west and merge with the convection already over the that 

area. The convection southwest of Chuuk and south of the trough 

will continue. 



The trade-wind trough east of the Marianas will move west and 

merge with the convection already over the that area.



The ITCZ will move west and extend between 157E to 167E and cause

convection over Pohnpei and Kosrae. 



Trade-wind convergence will continue convection north of Majuro.



Seas will decrease below 15 feet between 22N and 25N from 130E to

133E as Tropical Storm Mawar moves north of the area. 



$$



Ziobro