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In meteorology and climatology, a mesonet, portmanteau of mesoscale network, is a network of automated weather and, often also including environmental monitoring stations, designed to observe mesoscale meteorological phenomena and/or microclimates.
The Oklahoma Mesonet is a network of environmental monitoring stations designed to measure the environment at the size and duration of mesoscale weather events. The phrase " mesonet " is a portmanteau of the words mesoscale and network .
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.
57: 1984 Carolinas tornado outbreak – Twenty-four tornadoes were confirmed; seven were rated F4. In addition to the 57 tornadic deaths, 1,249 people were injured. This was and remained the deadliest official High Risk day (since SELS/SPC High Risk outlooks began) for over 27 years, surpassed by the Super Outbreak of April 27, 2011.
High risk convective outlook issued by the Storm Prediction center at 13:00 UTC on May 6. Starting April 30, the Storm Prediction Center noted that certain models, including the ECMWF, forecasted a multi-day period of high instability and supportive wind shear across the Southern and Central Plains, [10] and by May 1, a 15% risk was added across Nebraska, Kansas, Oklahoma, and northern Texas. [11]
Early on January 21, a low pressure area was located in the western Gulf of Mexico, connected to a cold front.Fueled by an Arctic cold front moving through the southern United States, the low produced an area of snowfall, sleet, and freezing rain across the U.S. Gulf Coast from Texas to Florida.
The University of Oklahoma and Oklahoma State University collaborated with the Climatological Survey and other public and private agencies to create the Oklahoma Mesonet. This system collects weather information (e.g., wind speed, rainfall, temperature) every 5 minutes from 120 Mesonet stations throughout Oklahoma.
NSSL mobile mesonet vehicles of the first Project VORTEX, equipped with surface measurement equipment.. The Verification of the Origins of Rotation in Tornadoes Experiment (or VORTEX) are field experiments that study tornadoes.