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The term mesonet refers to the collective group of these weather stations, which are usually owned and operated by a common entity. Mesonets generally record in situ surface weather observations but some involve other observation platforms, particularly vertical profiles of the planetary boundary layer (PBL). [5]
The TWISTEX crew and the vehicles on equipped with mobile mesonets. TWISTEX (a backronym for Tactical Weather-Instrumented Sampling in/near Tornadoes Experiment) was a tornado research experiment that was founded and led by Tim Samaras of Bennett, Colorado, US, that ended in the deaths of three researchers in the 2013 El Reno tornado.
A modified atmospheric profile near Hesston, Kansas, indicated convective available potential energy around 3,200 J/kg already in place at 12:00 UTC. In general, weather researchers remarked that the overarching pattern on March 13, 1990, was a synoptically evident pattern reminiscent of past tornado outbreaks.
To prevent losses, Kansas State University in June updated an online weather tool, Kansas Mesonet, to use National Weather Service forecasts to predict comfort levels for cattle a week ahead of time.
Since its initial usage in May 1999, the National Weather Service (NWS) in the United States has used the tornado emergency bulletin, an unofficial, high-end classification of tornado warning—sent through either the issuance of a warning or via a "severe weather statement" that provides updated information on an ongoing warning—that is issued when a violent tornado (confirmed by radar or ...
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The 1999 Bridge Creek–Moore tornado was a large, long-lived and exceptionally powerful F5 tornado in which the highest wind speeds ever measured globally was recorded at 321 miles per hour (517 km/h) by a Doppler on Wheels (DOW) radar. Considered the strongest tornado ever recorded to have affected the metropolitan area, the tornado ...
Meteorological synopsis May 19. On May 19, the Storm Prediction Center (SPC) outlined a level 4/Moderate risk of severe weather across southwest to central Kansas, encompassed by a level 3/Enhanced risk that extended into northwestern Oklahoma as well.