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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 ...
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 ...
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 ...
Late-May 1998 tornado outbreak and derecho – Only high risk ever issued in the Northeast (although it was discontinued and reduced to Moderate Risk at 1930Z, following a morning remnant derecho but prior to/concurrent with occurrence of afternoon into overnight severe weather outbreak). [165] Forty-two tornadoes were confirmed; six were rated F3.
PDS red flag warnings are issued by the National Weather Service to inform the public that there is an unusually high threat of wildland fire combustion, and rapid spread of wildfires, due to very dry fuels, very low humidity levels, and strong winds.
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 change in the jet stream pattern will favor long-tracking severe thunderstorm complexes beginning late in the Independence Day weekend and ongoing through next week from the northern Plains to ...
When severe weather looms, storm alerts are important tools for keeping people informed. The National Weather Service shares alerts as it warns of potential risks from thunderstorms, flooding ...