Area Forecast Discussion
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
610 FXPQ50 PGUM 282011 AFDGUM Area Forecast Discussion National Weather Service Tiyan GU 611 AM ChST Wed May 29 2024 .Marianas Synopsis... Gentle to moderate tradewinds and fair weather prevail across the Marianas. Cirrus is seen across the coastal waters and to the east. && .Discussion... Fair weather is expected to continue through today. Made a few updates to the forecast. One update was for scattered showers Thursday for Guam and Rota. Satellite indicates areas of higher moisture to the south and east, and models indicate a slight uptick tomorrow for Guam and Rota, most like to be low end scattered showers. Another change, increased showers to scattered over the weekend, looks like a weakening ridge and winds veering southeast as a low off Japan moves across. && .Marine... Maintained the incoming 2 to 3 foot north-northwest swell on Thursday from Typhoon Ewiniar. The storm is moving across pretty fast, so it doesn`t look like there will be much north swell. && .Eastern Micronesia... Overnight satellite imagery and model trends gave confidence to increase shower potentials at Majuro for today, as more minor troughs have been developing upstream that will allow rainfall to persist through the afternoon. Other than that, the weather and marine forecasts remain unchanged for Pohnpei, Kosrae and Majuro. && .Western Micronesia... A surface trough east of Palau and Yap has generated some isolated showers within Yap coastal waters during the overnight hours. A trade-wind pattern will continue across Yap and Palau through with scattered, with some isolated showers mixed in, through at least Saturday. Model guidance continues to show a weak ridge will move over Yap and Palau with Chuuk remaining on the eastern periphery during the latter part of the weekend into early next week. For Chuuk, trade convergence and weak trade-wind troughs will bring periods of isolated showers through Thursday, becoming scattered with isolated thunderstorms through early next week. Gentle to moderate trades and benign seas conditions are expected to continue across the region through the weekend. Altimetry this morning shows combined seas between 3 and 5 feet. && .GUM WATCHES/WARNINGS/ADVISORIES... GU...None. MP...None. Marianas Waters...None. && $$ Marianas: Hong Eastern Micronesia: Montvila Western Micronesia: Kelly