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The family of tornadoes that crossed the Spencer area was observed by a Doppler on Wheels (DOW) radar (Wurman et al. 1997, Wurman 2001). The DOW observed the tornadoes from before 8:04 through 8:45 pm local time (01:04–01:45 UTC)(Alexander and Wurman 2005) and the passage of a destructive F4 tornado through Spencer itself from 8:37-8:38 (01: ...
A Doppler radar is a specialized radar that uses the Doppler effect to produce velocity data about objects at a distance. [1] It does this by bouncing a microwave signal off a desired target and analyzing how the object's motion has altered the frequency of the returned signal.
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 ...
New York Sen. Chuck Schumer and New York Gov. Kathy Hochul have asked the U.S. Department of Homeland Security (DHS) to deploy the Robin Radar System to assist investigators in getting to the ...
The bigger cities along Interstate 95 from Philadelphia to New York and Boston are more likely to see 3 to 5 inches with heavier totals to the north and west of downtown. Washington, D.C. might ...
The heaviest accumulations, possibly a foot (30.5 centimeters) or more, were expected in upstate New York and portions of northern New England. New York, northeast US to be pummeled by foot of ...
Animated radar loop (left, storm-relative velocity; right, reflectivity) of the nearly stationary supercell thunderstorm that spawned the EF3 tornado from 5:36–7:33 p.m. CDT (2236–0033 UTC). A large, very slow-moving, and erratic tornado remained on the ground for just over an hour as it executed a cyclonic loop in Ottawa County south of ...
The NWS office in New York City said up to 2 inches of snow and up to a tenth of an inch of ice is forecast for the area Thursday, with the higher amounts expected away from the coast.