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This image is in the public domain because it was stored on the web servers of the U.S. Storm Prediction Center, which is part of National Weather Service.NWS-created images are automatically public domain in the U.S. since the NWS is a part of the U.S. government.
Convective outlooks are issued by the Storm Prediction Center in Zulu time (also known as Universal Coordinated Time or UTC). [29] The categories at right refer to the risk levels for the specific severe weather event occurring within 25 miles (40 km) of any point in the delineated region, as described in the previous section.
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 ...
A mesoscale convective complex (MCC) is a unique kind of mesoscale convective system which is defined by characteristics observed in infrared satellite imagery. Their area of cold cloud tops exceeds 100,000 square kilometres (39,000 sq mi) with temperature less than or equal to −32 °C (−26 °F); and an area of cloud top of 50,000 square ...
Using data collected in March 2023 and risk assessments, the Federal Emergency Management Agency has created a map that shows which counties across the United States are the most at risk for ...
The agency announced that taxpayers in any county covered by a federal emergency declaration would have until May 15 to file their income tax returns for 2022. So far, 31 of the state's 58 ...
[80] [81] Governor Kristi Noem ordered state government executive branch offices closed in 36 counties. [82] Parts of I-90 and I-29 closed. [83] To the east, the National Weather Service forecast office in the Twin Cities warned of a "historic" winter storm. [84]
Convective storm detection is the meteorological observation, and short-term prediction, of deep moist convection (DMC). DMC describes atmospheric conditions producing single or clusters of large vertical extension clouds ranging from cumulus congestus to cumulonimbus , the latter producing thunderstorms associated with lightning and thunder .