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  2. List of Storm Prediction Center high risk days - Wikipedia

    en.wikipedia.org/wiki/List_of_Storm_Prediction...

    Progression of a well-anticipated high risk event across the Central Plains on April 14, 2012. This event ultimately produced 85 tornadoes that day, one of which killed six people. A high risk severe weather event is the greatest threat level issued by the Storm Prediction Center (SPC) for convective weather events in the United States. On the ...

  3. Storm Prediction Center - Wikipedia

    en.wikipedia.org/wiki/Storm_Prediction_Center

    Day 4–8 outlooks are the longest-term official SPC Forecast Product, and often change significantly from day to day. This extended forecast for severe weather was an experimental product until March 22, 2007, when the Storm Prediction Center incorporated it as an official product.

  4. Extratropical cyclone - Wikipedia

    en.wikipedia.org/wiki/Extratropical_cyclone

    A February 24, 2007 radar image of a large extratropical cyclonic storm system at its peak over the central United States. Extratropical cyclones are generally driven, or "steered", by deep westerly winds in a general west to east motion across both the Northern and Southern hemispheres of the Earth.

  5. Riccione, ER Weather - Hourly Forecasts and Local Weather ...

    www.aol.com/weather/forecast/italy/emilia-ro...

    Get the Riccione, ER local weather forecast by the hour and the next 10 days. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways ...

  6. Continuous-wave radar - Wikipedia

    en.wikipedia.org/wiki/Continuous-wave_radar

    Continuous-wave radar (CW radar) is a type of radar system where a known stable frequency continuous wave radio energy is transmitted and then received from any reflecting objects. [1] Individual objects can be detected using the Doppler effect , which causes the received signal to have a different frequency from the transmitted signal ...

  7. Mean absolute percentage error - Wikipedia

    en.wikipedia.org/wiki/Mean_absolute_percentage_error

    where A t is the actual value and F t is the forecast value. Their difference is divided by the actual value A t. The absolute value of this ratio is summed for every forecasted point in time and divided by the number of fitted points n.

  8. Used car prices fall again in July, down nearly 20% from ...

    www.aol.com/finance/used-car-prices-fall-again...

    New car prices fell 0.2% in July and 1.4% from the prior year. Compared to their peak in February 2022, prices paid for used vehicles are now down 19.4%. Used car prices rose more than 40% ...

  9. Daily mortgage rates for July 11, 2024: Average rates slide ...

    www.aol.com/finance/daily-mortgage-rates-for...

    20-year fixed rate — 6.73%. 15 ... interest rate steady at a 23-year high of 5.25% to 5.50%, marking the seventh consecutive time the Fed's held the benchmark rate unchanged since July 2023 ...