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This is a list of meso-gamma mesoscale discussions, which are issued by the National Oceanic and Atmospheric Administration ’s Storm Prediction Center for small-scale analysis of mesoscale features, typically during high-confidence and high-impact severe weather events. [1][2][3][4][5] These can be for tornadoes believed to be at least EF2 on ...
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). [2]
[17] [18] While the violent EF4 tornado was on the ground, Harry Weinman, a forecaster at the SPC, issued a special meso-gamma mesoscale discussion for the tornado. [19] In the discussion, the SPC stated that radar showed debris was being lofted at least 13,000 feet (4,000 m) into the air and that a vertical rotation of 70 knots (81 mph; 130 km ...
A mesoscale discussion may refer to: 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) Category: Disambiguation pages.
I believe I found a Meso-Gamma Mesoscale Discussion on December 15, 2021. Here is the link so someone can check: https://www.spc.noaa.gov/products/md/2021/md2027.html ...
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. Examples of mesoscale weather systems are sea breezes, squall ...
The Storm Prediction Center issued a mesoscale discussion stating that a tornado with winds of 170–205 mph (274–330 km/h) was likely ongoing, and that it was an 'exceptionally rare event'. [45] The tornado then narrowed to 1.7 miles (2.7 km), but continued to produce EF3 damage as it crossed US 49 to the north-northwest of Seminary ...
It issues mesoscale precipitation discussions (MPDs) as flash flood guidance for NWS forecast offices (NWSFOs), NWS River Forecast Centers (RFCs), the media, emergency managers, and other users. MPDs contain technical discussions concerning heavy rainfall events and expected impacts on flash flooding.