Heavy rain expected across the Mid-Atlantic region and central Appalachians.

Heavy rainfall is possible over portions of the eastern United States today, with the highest risk across the Mid-Atlantic and central Appalachians. Click the "Read More" link for excessive rainfall forecasts from the Weather Prediction Center. Afternoon showers and thunderstorms are possible over portions of the Southwest and southern Rockies through Friday.
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Hazardous Weather Conditions

Last Update: 531 AM CHST FRI SEP 30 2016

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Tiyan, GU Local Forecast Office

2NM NE Talofofo GU

Marine Zone Forecast


Synopsis: GENTLE WINDS WILL BECOME MODERATE TO FRESH BY SUNDAY AS A TROPICAL DISTURBANCE APPROACHES. COMBINED SEAS OF 3 TO 5 FEET TODAY WILL CONTINUE THROUGH SATURDAY NIGHT... THEN COULD BEGIN TO BUILD WITH THE APPROACH OF THE DISTURBANCE. ISOLATED THUNDERSTORMS WILL MAINLY BE SOUTH OF GUAM WATERS BUT COULD BRIEFLY FILTER INTO THE ZONES AT TIMES TODAY. THE APPROACHING DISTRUBANCE IS ALSO EXPECTED TO BRING SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS SUNDAY THROUGH MONDAY NIGHT.

Today
South wind 5 to 15 kt. Wind waves 2 ft or less. Mixed swell east 3 to 4 ft and west 4 ft. Isolated thunderstorms.
Tonight
South wind 5 to 10 kt. Wind waves 2 ft or less. Mixed swell east 3 to 4 ft and west 3 ft.
Saturday
Southeast wind 10 kt. Wind waves 2 ft or less. East swell 3 to 4 ft.
Saturday Night
Northeast wind 5 to 15 kt. Wind waves 2 ft or less. East swell 3 ft.
Sunday
East wind 10 to 20 kt with gusts to 30 kt near showers. Wind waves 3 ft. East swell 3 to 4 ft. Scattered showers and isolated thunderstorms.
Monday
Southeast wind 10 to 20 kt. Wind waves 3 ft. East swell 3 to 5 ft. Scattered showers and isolated thunderstorms.
Tuesday
Northeast wind 10 kt. Wind waves 2 ft or less. East swell 3 to 4 ft.
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ABOUT THIS FORECAST

Last Update: 531 AM CHST FRI SEP 30 2016
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