Search results
Results From The WOW.Com Content Network
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 ...
Figure 2 shows the 0.5 degree reflectivity and storm relative velocity from the KEOX WSR-88D radar shortly before the tornado. A pronounced rotational couplet (mesocyclone) is seen in the velocity image near Damascus, Alabama. The second tornado of the day developed from a fast-moving storm that crossed Gadsden County, Florida, during mid ...
Weather radar in Norman, Oklahoma with rainshaft Weather (WF44) radar dish University of Oklahoma OU-PRIME C-band, polarimetric, weather radar during construction. Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.).
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 ...
On the evening of July 13, a multitude of shortwave troughs were tracking southeastward across Saskatchewan, towards an area of east-southeasterly low-level winds, which, alongside favorable wind shear and daytime heating contributing to atmospheric instability, led the Storm Prediction Center to issue a wind-driven Enhanced (3/5) risk over Montana, North Dakota, and South Dakota at the 20Z ...
The Doppler on Wheels also led to the “first tornado wind maps, measurements of an axial downdraft and lofted debris, multiple vortices, winds versus damage and surface measurement intercomparisons, winds as low as 3–4 m (9.8–13.1 ft) above the ground level and low-level inflow, 3D ground-based velocity track display (GBVTD) vector wind ...
In the United States and a few other countries, Doppler capable weather radar stations are used. These devices are capable of measuring the radial velocity, including radial direction (towards or away from the radar) of the winds in a storm, and so can spot evidence of rotation in storms from more than a hundred miles (160 km) away. A supercell ...
1975 Canton, Illinois, tornado; Marion, Illinois, tornado outbreak; 1990 Plainfield tornado; June 1990 Lower Ohio Valley tornado outbreak; Tornado outbreak sequence of May 6–27, 1995; List of tornadoes in the May 1995 tornado outbreak sequence; Tornado outbreak sequence of April 1996; Tornado outbreak of April 15–16, 1998