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Doppler on Wheels. DOW 7 on display at the USA Science and Engineering Festival in 2010. Doppler on Wheels (or DOW) is a fleet of X-band and C-band mobile and quickly-deployable truck-borne radars which are the core instrumentation of the Flexible Array of Radars and Mesonets [1] affiliated with the University of Illinois [2] and led by Joshua ...
Raymond Pierrehumbert. Fred Sanders. Joshua Michael Aaron Ryder Wurman (born October 1, 1960) is an American atmospheric scientist and inventor noted for tornado, tropical cyclone, and weather radar research, the invention of DOW and bistatic radar multiple-Doppler networks.
From April 25 to 28, 2024, a very large, deadly and destructive tornado outbreak occurred across the Midwestern, Southern, and High Plains regions of the United States, primarily on April 26 and 27. [3] On April 26, the Storm Prediction Center (SPC) first issued an enhanced risk for the Plains, as a broad upper-trough moved eastwards, with ...
However, winds of 309–318 mph (497–512 km/h) were measured in a sub-vortex of the tornado by a DOW (Doppler on Wheels), placing it among the strongest tornadoes ever measured. [3] This tornado was the fourth violent tornado of the 2024 season and the second one to occur during the prolifically active month of May.
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 ...
For the 2008 season, which consisted of eight episodes, Wurman and Casey's team and its vehicles were expanded and upgraded as follows: 1) the DOW 3 was replaced by the new DOW 6 (based around an International 7500 truck) with improved speed, power and range; 2) the original TIV was augmented by the new TIV 2 (both versions are still used in ...
The Dow surged by 742.76 points, or 1.85%, to close at 40,954.48. The 30-stock index hit an all-time high and closed at a record, in addition to notching its best session since June 2023.
NEXRAD or Nexrad (Next-Generation Radar) is a network of 159 high-resolution S-band Doppler weather radars operated by the National Weather Service (NWS), an agency of the National Oceanic and Atmospheric Administration (NOAA) within the United States Department of Commerce, the Federal Aviation Administration (FAA) within the Department of Transportation, and the U.S. Air Force within the ...