Area Forecast Discussion
Issued by NWS Pago Pago
Issued by NWS Pago Pago
593 FXZS60 NSTU 220111 AFDPPG Area Forecast Discussion National Weather Service Pago Pago AS 211 PM SST Thu Nov 21 2024 .DISCUSSION... The latest satellite imageries continue to show an active trough over the area. This trough has continually produced single cell convections that brings heavy downpours with gusty winds at times. Thunderstorms are also possible and are expected to linger in the area. These conditions will likely remain for the rest of the week. Model data shows the trough remaining over the area through the new week. A high pressure system to the south will likely hold the trough line nearly stationary for this forecast period. The moderate to fresh easterlies will remain through at least early Saturday morning before decreasing to a gentle to moderate breeze for the rest of the forecast period. Therefore, expect numerous to widespread showers with potential thunderstorms. Expect the likelihood of flash flooding conditions to remain over the area from time to time. && .Marine... Latest data from the PacIOOS buoy near Aunu`u show heights in the 8 to 10 feet range with periods less than 10 seconds. With these heights, thunderstorms nearby and the moderate to fresh easterlies, seas will likely remain in the advisory threshold through tonight. However, model data shows a downward trend in seas as winds will also decrease by Friday through the end of the forecast period. Therefore, expect the advisory for small crafts to remain through tonight, improving thereafter. && .PPG WATCHES/WARNINGS/ADVISORIES... Small Craft Advisory remains in effect. && $$ JTAllen