Severe Thunderstorms Possible for the Great Lakes into Ohio Valley; Heavy to Excessive Rainfall Over the Southern Plains

Severe thunderstorms will race along a cold front from the Upper Mississippi Valley into the Great Lakes and Ohio Valley with the main threat being damaging winds. The tail end of this front will possibly produce heavy to excessive rainfall across the southern Plains into the Lower Mississippi Valley through Saturday. Finally, Major-to-record river flooding continues across the Carolinas. Read More >

Current conditions at

Agana, Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 299ft.

Light Rain

81°F

27°C

Humidity 100%
Wind Speed S 10 G 20 mph
Barometer 29.79 in
Dewpoint 81°F (27°C)
Visibility 7.00 mi
Heat Index91°F (33°C)
Last update 22 Sep 12:01 am ChST
Extended Forecast for

3 Miles S Agat GU

Flash Flood Watch until September 23, 06:00am
Click here for hazard details and duration
Flash Flood Watch
  •  
    Flash Flood Watch until September 23, 06:00am

    NOW until
    6:00am Sun

    Flash Flood Watch

  • Overnight

    Overnight: Frequent showers and possibly a thunderstorm.  Low around 78. South wind 10 to 14 mph.  Chance of precipitation is 100%.

    Showers

    Low: 78 °F

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm.  Cloudy, with a high near 84. South southeast wind 10 to 14 mph.  Chance of precipitation is 70%.

    Showers
    Likely

    High: 84 °F

  • Saturday
    Night

    Saturday Night: Scattered showers and thunderstorms.  Cloudy, with a low around 78. Southeast wind 11 to 14 mph.  Chance of precipitation is 50%.

    Scattered
    Showers

    Low: 78 °F

  • Sunday

    Sunday: Scattered showers and thunderstorms.  Cloudy, with a high near 86. Southeast wind 13 to 15 mph, with gusts as high as 18 mph.  Chance of precipitation is 50%.

    Scattered
    Showers

    High: 86 °F

  • Sunday
    Night

    Sunday Night: Scattered showers and thunderstorms.  Cloudy, with a low around 78. Southeast wind 6 to 13 mph.  Chance of precipitation is 40%.

    Scattered
    Showers

    Low: 78 °F

  • Monday

    Monday: Scattered showers and thunderstorms.  Cloudy, with a high near 87. Chance of precipitation is 40%.

    Scattered
    Showers

    High: 87 °F

  • Monday
    Night

    Monday Night: Showers likely and possibly a thunderstorm.  Cloudy, with a low around 78. Chance of precipitation is 60%.

    Showers
    Likely

    Low: 78 °F

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm.  Cloudy, with a high near 88. Breezy.  Chance of precipitation is 60%.

    Showers
    Likely and
    Breezy

    High: 88 °F

Detailed Forecast

Overnight
Frequent showers and possibly a thunderstorm. Low around 78. South wind 10 to 14 mph. Chance of precipitation is 100%.
Saturday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 84. South southeast wind 10 to 14 mph. Chance of precipitation is 70%.
Saturday Night
Scattered showers and thunderstorms. Cloudy, with a low around 78. Southeast wind 11 to 14 mph. Chance of precipitation is 50%.
Sunday
Scattered showers and thunderstorms. Cloudy, with a high near 86. Southeast wind 13 to 15 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.
Sunday Night
Scattered showers and thunderstorms. Cloudy, with a low around 78. Southeast wind 6 to 13 mph. Chance of precipitation is 40%.
Monday
Scattered showers and thunderstorms. Cloudy, with a high near 87. Chance of precipitation is 40%.
Monday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 78. Chance of precipitation is 60%.
Tuesday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 88. Breezy. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 78. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 88. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 78. Chance of precipitation is 60%.
Thursday
Partly sunny, with a high near 89.
Thursday Night
Mostly cloudy, with a low around 77.
Friday
Isolated showers. Mostly sunny, with a high near 90.
Click Map For Forecast
Point Forecast:
3 Miles S Agat GU
 13.33°N 144.67°E (Elev. 994 ft)
10:13 pm ChST Sep 21, 2018
12am ChST Sep 22, 2018-6pm ChST Sep 27, 2018
 
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Additional Resources

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