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Convective mesoscale discussions are issued by the National Oceanic and Atmospheric Administration’s Storm Prediction Center based on the National Weather Center in Norman, Oklahoma. [ 1 ] [ 2 ] One type of mesoscale discussion is a meso-gamma mesoscale discussion , which are for tornadoes believed to be at least EF2 on the Enhanced Fujita ...
The Storm Prediction Center (SPC) is a US government agency that is part of the National Centers for Environmental Prediction (NCEP), operating under the control of the National Weather Service (NWS), [1] which in turn is part of the National Oceanic and Atmospheric Administration (NOAA) of the United States Department of Commerce (DoC).
The Weather Event Writer (Talk Page) 19:09, 11 October 2024 (UTC) The SPC itself doesn’t seem to acknowledge their existence; much less define which discussions fall into the meso-gamma category. The criteria for inclusion seems to be a criteria drummed up here. Hurricane Clyde 🌀 my talk page! 19:12, 11 October 2024 (UTC)
Mesoscale convective discussion, a forecast concerning thunderstorms issued by the Storm Prediction Center (SPC) Mesoscale precipitation discussion, a forecast concerning precipitation issued by the Weather Prediction Center (WPC)
An extremely critical fire weather event is the greatest threat level issued by the NWS Storm Prediction Center (SPC) for wildfire events in the United States. On the scale from one to three, an extremely critical is a level three; thus, these outlooks are issued only when forecasters at the SPC are confident of extremely dangerous wildfire ...
Meso-gamma discussion on May 23, 2024, in parts of TX/OK On May 23, the SPC issued an Enhanced risk over central Nebraska to Western Iowa for the threat of damaging winds. Conditions weren't quite as favorable this day compared to others with dew points only expected to reach the upper 50s °F, creating conditions for high-base supercells ...
A meso-beta scale vortex. Mesoscale meteorology is the study of weather systems and processes at scales smaller than synoptic-scale systems but larger than microscale and storm-scale. Horizontal dimensions generally range from around 5 kilometres (3 mi) to several hundred kilometres.
A shelf cloud, such as this one, can be a sign that a squall is imminent.. A mesoscale convective system (MCS) is a complex of thunderstorms that becomes organized on a scale larger than the individual thunderstorms but smaller than extratropical cyclones, and normally persists for several hours or more.