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  2. Helene updates: Evacuations ordered, Jim Cantore in Florida ...

    www.aol.com/helene-live-updates-tropical-storm...

    A tropical storm watch is an announcement that sustained winds of 39 to 73 mph are possible within the specified area within 48 hours in association with a tropical, subtropical, or post-tropical ...

  3. Tropical cyclone intensity scales - Wikipedia

    en.wikipedia.org/wiki/Tropical_cyclone_intensity...

    Tropical cyclones that develop in the Southern Hemisphere are only officially classified by the warning centres on one of two scales, which are both based on 10-minute sustained wind speeds: The Australian tropical cyclone intensity scale is used to classify systems within the Australian or South Pacific tropical cyclone basin.

  4. Helene, expected to intensify rapidly, prompts hurricane ...

    www.aol.com/hurricane-watch-florida-gulf-coast...

    Forecasters say water levels could reach up to 10-15 feet above ground level throughout much of the Big Bend region of Florida, which is still recovering from Hurricane Debby after it lashed the ...

  5. NBC's Lester Holt to interview President Joe Biden Monday ...

    www.aol.com/nbcs-lester-holt-interview-president...

    Now, on Monday evening, the country will watch as Biden sits down with NBC's Lester Holt for a one-on-one conversation. ... However, portions of the interview will go live on Monday at 6:30 p.m ...

  6. Radius of maximum wind - Wikipedia

    en.wikipedia.org/wiki/Radius_of_maximum_wind

    The radius of maximum wind of a tropical cyclone lies just within the eyewall of an intense tropical cyclone, such as Hurricane Isabel from 2003. The radius of maximum wind (RMW) is the distance between the center of a cyclone and its band of strongest winds. It is a parameter in atmospheric dynamics and tropical cyclone forecasting. [1]

  7. Tropical cyclone tracking chart - Wikipedia

    en.wikipedia.org/wiki/Tropical_cyclone_tracking...

    A tropical cyclone tracking chart is used by those within hurricane-threatened areas to track tropical cyclones worldwide. In the north Atlantic basin, they are known as hurricane tracking charts . New tropical cyclone information is available at least every six hours in the Northern Hemisphere and at least every twelve hours in the Southern ...

  8. Storm tracker: Tropical Storm Helene forms, expected to make ...

    www.aol.com/storm-tracker-potential-tropical...

    A Tropical Storm Watch has been issued for the Gulf Coast of Florida from Indian Pass to the Walton/Bay County Line and from north of Bonita Beach to south of Englewood, in addition to the Middle ...

  9. Tropical cyclone - Wikipedia

    en.wikipedia.org/wiki/Tropical_cyclone

    The heaviest wind damage occurs where a tropical cyclone's eyewall passes over land. [122] In a weaker storm, the eye may be obscured by the central dense overcast, which is the upper-level cirrus shield that is associated with a concentrated area of strong thunderstorm activity near the center of a tropical cyclone. [125]