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The BTI, a product that was recently introduced, is mainly used to determine the probability of the presence of a tornado or tornadoes inside a tornadic vortex signature on the rear flank of the storm, to better alert potential high risk areas for tornadoes and to easily track them. With the help of radar data, mesoscale models and algorithms ...
Many of the most prolific severe weather days were high risk days. Such days are rare; a high risk is typically issued (at the most) only a few times each year (see List of Storm Prediction Center high risk days). High risk areas are usually surrounded by a larger moderate risk area, where uncertainty is greater or the threat is somewhat lower ...
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 ...
Depending on the exact speed and track of the storm, Dallas, Houston, Little Rock and New Orleans are among the major metro areas that could be in the crosshairs of this latest severe weather event.
Another example of a storm track is the circumpolar storm track in the Antarctic, however land-sea contrasts play no role in its formation. Given a grid point field of geopotential height , storm tracks can be visualized by contouring its average standard deviation , after the data has been band-pass filtered.
The Tehama County, California EFU tornado on January 3, 2025.. From January 3 to January 7 of 2025, a major winter storm passed over the contiguous United States.The storm system made landfall on January 3 over the West Coast of the United States, [4] where it produced the first tornado of the year, a brief EFU tornado in rural Tehama County, California, which caused no damage.
Satellite image of the storm system responsible for the tornado outbreak that occurred on April 25–28, 2024. On April 20, 2024, the National Weather Service's Storm Prediction Center (SPC) first delineated a severe weather risk for April 25–26, highlighting a zone extending from the Central Great Plains northeastward to the Midwestern U.S.
The risk assessment kept climbing, and on Jan. 29, the International Asteroid Warning Network (IAWN), a global planetary defense collaboration, issued a memo.