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By the extended Independence Day weekend, the heat dome over the South Central states will break down and the risk of a derecho may decrease. However, as weather systems continue to move along ...
The term derecho derives from the Spanish language and means "straight ahead" when translated into English. In meteorology, the word is used to describe a powerful complex of thunderstorms that ...
As the powerful storms approached Chicago, tornado warnings were issued for the areas in and around the city, encompassing an area that over 2.5 million people call home.
As the derecho tracked from Missouri to West Virginia early on April 2, another widespread outbreak of severe weather and tornadoes was expected to occur across the broader Ohio River Valley region. On April 1, the SPC issued a Moderate risk across much of Ohio and adjacent portions of surrounding states, that outlook was valid for April 2.
A severe thunderstorm warning (SAME code: SVR) is a type of public warning for severe weather that is issued by weather forecasting agencies worldwide when one or more severe thunderstorms have been detected by Doppler weather radar, observed by weather spotters, or reported by an emergency management agency, law enforcement, or the general ...
While the intention of this experimental warning may be to replace the loosely defined tornado emergency, PDS tornado warnings are structured as the second highest level of tornado warning within the impact based warning system (an experiment – which also includes tags within warning products illustrating radar indications or physical ...
The official scientific criteria of a derecho, as described by the National Weather Service's Storm Prediction Center, pertains to a swath of wind damage that must extend either continuously or ...
Local Weather Forecast Offices (WFO) of the National Weather Service may issue a Special Weather Statement to alert of a specified hazard that is approaching or below warning or advisory criteria, that does not have a specific alert product code of their own (such as for widespread funnel clouds with limited to no threat of complete tornadogenesis, the likelihood of landspouts, or strong ...