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AXPQ20 PGUM 082008

TWDPQ 



Tropical Weather Discussion

National Weather Service Tiyan GU

608 AM ChST Thu May 9 2024



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.



...SPECIAL FEATURES...



None.



...OTHER WEATHER SYSTEMS...



NEAR EQUATORIAL TROUGH...

The Near-Equatorial Troughs (NET) enters the area of responsibility 

(AOR) near 4N130E, and extends east through Joint Typhoon Warning 

Center (JTWC) Invest 92W southwest of Weno, Chuuk near 3N148E, and 

exits the AOR near EQ156E. Moderate to deep convection is occurring

in the vicinity of Invest 92W and widespread cloudiness is seen

across the NET. 

 

TRADE-WIND CONVERGENCE...

Convergent trade winds extend from west of Pohnpei southeast across

Kosrae then extends to the northeast passing south of Majuro. Pockets

of moderate to deep convection are occurring along this convergent

trade wind feature, mainly near Pohnpei and Kosrae. 



SURFACE TROUGH/LOW...

A surface low, Invest 92W, is located near 3N148E, southwest of

Chuuk. This is generating moderate to deep convection and satellite

indicates slight rotation in cloud features. 



TUTT...

The Tropical Upper Tropospheric Trough (TUTT) enters the AOR near

25N175E and extends southwest to an upper low north of Wake near

24N170E and continues southwest ending near 20N155E. 



...DISCUSSION...

The NET with the embedded circulations will persist and may slowly

meander north. Invest 92W remains sub-low for tropical cyclone

development and is not well organized. Convective activity is

expected to slowly track west towards Palau. 



The trade convergence will continue to push west across central and 

eastern Micronesia, slightly shifting north by the end of the week. 



The surface troughs embedded in the trade wind convergence will 

continue to move west and increase in convective activity the next

day or two. 



The TUTT is expected to extend further south the next few days and

enhance convection associated with the surface troughs near Kosrae

and Pohnpei near the weekend. 



$$



Hong