As Hurricane Arthur continued to intensify just east of Savannah, GA (the South Carolina coast is visible as black line in the upper left of the images) a NOAA P-3 mission collected airborne Doppler radar data to use in initializing and evaluating model guidance. Included here you see images of the horizontal winds within 300 km of Arthur sampled from the tail Doppler radar on the P-3 during the early morning of July 3, 2014. These images are at three altitudes (1 km, 3 km, and 6 km) and are a composite of winds from the P-3 Doppler pattern around Arthur. Also plotted on each analysis are the locations of dropsondes deployed by the P-3 (plotted using standard station symbols). These analyses show that Arthur still had a slightly asymmetric distribution of precipitation at all altitudes, with the bulk of the precipitation surrounding the center and extending primarily toward the east. There is indication of a clear circulation center at all altitudes, with stronger winds 25 km east of the circulation center. At 3 and 6-km altitude there is a clear indication of a secondary wind maximum 80-90 km east of the center. From 1-3 km altitude the circulations center is nearly vertical, while above 3 km the circulation center is tilted 10-12 km toward the east indicative of increased westerly shear.
All the Arthur radar composites at 0.5-km height resolution are available at http://www.aoml.noaa.gov/hrd/Storm_pages/arthur2014/radar.html