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  2. Severe weather - Wikipedia

    en.wikipedia.org/wiki/Severe_weather

    Organized severe weather occurs under the same conditions that generate ordinary thunderstorms: atmospheric moisture, lift (often from thermals), and instability. [9] A wide variety of conditions cause severe weather. Several factors can convert thunderstorms into severe weather.

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

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

    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 scale from one to five, a high risk is a level five; thus, high risks are issued only when forecasters at the SPC are confident of a major severe weather outbreak.

  4. Severe weather terminology (United States) - Wikipedia

    en.wikipedia.org/wiki/Severe_weather_terminology...

    The categorical forecast in the Day 1-3 Convective Outlooks—which estimates a severe weather event occurring within 25 miles (40 km) of a point and derives the attendant risk areas from probability forecasts of tornadoes, damaging winds, and large hail on Days 1 and 2, and a combined severe weather risk on Day 3—specifies the level of ...

  5. Southern US severe weather, tornado outbreak to continue on ...

    www.aol.com/weather/severe-storms-including...

    All modes of severe weather unfolded across the Gulf Coast states from northeastern Texas to western Georgia and the Florida Panhandle. During this period alone, more than 160 reported incidents ...

  6. Snow, severe weather threaten parts of US on Wednesday

    www.aol.com/wall-rain-snow-ice-sweep-123140234.html

    Severe weather threat in the Plains. A few strong to severe thunderstorms will be possible across parts of the southern Great Plains both Wednesday and Thursday, the Storm Prediction Center said.

  7. 4 dead, thousands remain without power as tornadoes, storms ...

    www.aol.com/2-dead-thousands-flights-delayed...

    In a wide swath of the Southeast and East, warm and humid conditions could help fuel more severe weather, AccuWeather said. New York reached 61 degrees Sunday, Philadelphia saw 63 degrees and ...

  8. List of severe weather phenomena - Wikipedia

    en.wikipedia.org/wiki/List_of_severe_weather...

    Severe weather can occur under a variety of situations, but three characteristics are generally needed: a temperature or moisture boundary, moisture, and (in the event of severe, precipitation-based events) instability in the atmosphere.

  9. Storm Blair live: Deadly winter conditions cause hundreds of ...

    www.aol.com/severe-us-winter-storm-leaves...

    Severe weather has left nearly 150,000 residents without electricity in Missouri, Illinois, Louisiana and Kentucky, according to Poweroutage.US. Kentucky suffered the most power outages with ...