SYNOPTIC DISCUSSION
SUNDAY 08th SEPTEMBER 2024 – P.M. SHIFT

TONIGHT INTO TOMORROW:
recent observations indicates the movement of the surface convergence zone further southwest from Samoa, whilst the trough of low pressure advances over the group from the north. Meanwhile, the amplified upper level trough as was evident earlier in the morning with its associating winds has become more zonal, thus, its associating activities has subsided compared as of last night. However, the Heavy Rain and Wind Advisory remains in effect over all land areas due to isolated convections being drawn over the group. Therefore, expect improving conditions later tomorrow for the islands as such activities slowly exits Samoa’s atmosphere.

TUESDAY THROUGH SUNDAY:
The easterlies will return afterwards, meanwhile, a speedconvergenceisanticipatedtomakelandfall togetherwithbriefshowerslaterintocomingTuesday.Such activitiescouplingwithlocalized topography as well as surface heating may provide brief showers with sunny periods. Into the remainder of the outlook period, the easterlies will take control of the group’s weather, therefore, anticipation ofprecipitationmayrelysolely on the availability of moisture.However,theabsenceofasurfacesystemaswellasan upper level system hinders the persistence of showery activities into the latter part of the outlook period.

MARINE OUTLOOK:
Recent observations have peaked at 5.5 metres, however, most recent activities shows a gradual decline in such activities. The decline in wind activity has reflected also in the decrease in waves. Moreover, activities tend to fluctuate slightly below 3 metres, and may continue to do so for the next 2 to 3 days. Expect waves to improve later in the coming days.

ADVISORY/WARNING:
VALID: MARINE WARNING

VALID: HEAVY RAIN ADVISORY
VALID: WIND ADVISORY

WEATHER ON DUTY TEAM:
MJS & C. Baker