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A Stüve diagram is one type of thermodynamic diagram commonly used in weather analysis and forecasting. [ 1 ] This diagram has a simplicity in that it uses straight lines for the three primary variables: pressure , temperature and potential temperature .
The Warn-on-Forecast run at 17z on May 21, 2024, showing a high probability of low-level updraft helicity near Adair County three hours before the Greenfield tornado formed. The research project was started in 2016 in the National Weather Center in Norman, Oklahoma. [5] On May 16, 2017, a deadly EF2 tornado struck Elk City, Oklahoma.
One such high-precipitation supercell was first severe warned at 6:11 p.m. CDT (23:11 UTC); the National Weather Service office in Chicago, Illinois warned of winds up to 70 mph (110 km/h) and quarter- to golf ball-sized hail. [11] The weather forecast office upgraded the severe thunderstorm warning to a tornado warning at 6:35 p.m. CDT (23:35 ...
On May 12, 2023, Extreme Meteorologist Reed Timmer and his team accomplished an exceptionally difficult task -- intercepting a tornado in an armored vehicle. The terrifying and groundbreaking ...
The end of April 2021 marks an entire decade since a severe weather event that the National Weather Service called "one of the most active, destructive, and deadly" in U.S. history for tornadoes ...
The study’s authors argue that adjusting the EF5 wind speed threshold downward just 11 mph from 201 mph to 190 mph, or upgrading tornadoes with 190-200 mph estimated winds to EF5, would create a ...
A skew-T log-P diagram is one of four thermodynamic diagrams commonly used in weather analysis and forecasting. In 1947, N. Herlofson proposed a modification to the emagram that allows straight, horizontal isobars and provides for a large angle between isotherms and dry adiabats , similar to that in the tephigram .
Completed Tornado Diagram. Tornado diagrams, also called tornado plots, tornado charts or butterfly charts, are a special type of Bar chart, where the data categories are listed vertically instead of the standard horizontal presentation, and the categories are ordered so that the largest bar appears at the top of the chart, the second largest appears second from the top, and so on.