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  2. 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.

  3. Hexavalent chromium - Wikipedia

    en.wikipedia.org/wiki/Hexavalent_chromium

    The other study mentioned is a human health assessment of chromium, titled Toxicological Review of Hexavalent Chromium. The final human health assessment is currently in the stage of draft development. [47] This stage is the first of seven. The EPA gives no forecast to when the review will be finalized, and if a decision will be made.

  4. Severe weather terminology (United States) - Wikipedia

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

    A Short-Term Forecast NOW (alt., NOWcast) is an event-driven narrative outlook of near-term weather conditions within the Weather Forecast Office’s area of responsibility, typically valid for a three- to seven-hour period. The product outlines any ongoing or recently occurring conditions—based on radar analysis, satellite imagery and other ...

  5. Weather radar - Wikipedia

    en.wikipedia.org/wiki/Weather_radar

    Weather radar in Norman, Oklahoma with rainshaft Weather (WF44) radar dish University of Oklahoma OU-PRIME C-band, polarimetric, weather radar during construction. Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.).

  6. Weather service warns of 'dangerous heat and humidity ... - AOL

    www.aol.com/weather-warns-dangerous-heat...

    "Dangerous heat and humidity arrives on Tuesday and peaks in the Wednesday through Friday time frame," the weather service says in its forecast discussion. "Near to record breaking high ...

  7. Severe weather - Wikipedia

    en.wikipedia.org/wiki/Severe_weather

    Severe weather is any dangerous meteorological phenomenon with the potential to cause damage, serious social disruption, or loss of human life. [ 1 ] [ 2 ] [ 3 ] These vary depending on the latitude , altitude , topography , and atmospheric conditions.

  8. Eastern US to experience dangerous combination of extreme ...

    www.aol.com/weather/eastern-us-experience...

    The linchpin in all cases will be the high humidity. Meteorologists look at the dew point temperature to determine just how humid the air may feel to most individuals.

  9. Winter weather forecast: Heavy snow and blizzard conditions ...

    www.aol.com/news/winter-weather-forecast-bomb...

    Behind the storm, an arctic blast from the polar vortex will send temperatures plunging to potentially record lows for much of the country.