10th Anniversary of Aerosonde flying into hurricane-force winds

On November 2, 2007, an unmanned aerial vehicle (UAV) Aerosonde flew into Tropical Storm Noel.  This marks the first time a UAV flew into an Atlantic tropical cyclone while encountering hurricane-force winds. The flying probe was produced by the Australian-based Aerosonde Pty Ltd. (now Textron Systems) which had been manufacturing sensors since 1995.  It reached …

70th Anniversary of the first hurricane seeding experiment

On the afternoon of October 13, 1947, an Air Force B-17 aircraft penetrated a hurricane 415 miles (667 km) east of Jacksonville and dumped several pounds of crushed dry ice into the storm, just to see what would happen.  This was the first attempt to modify a tropical cyclone by seeding it with freezing nuclei.  …

35th Anniversary of first airborne Doppler radar measurements made in a tropical cyclone

On September 14, 1982, while NOAA42 was flying the first Synoptic Flow experiment, NOAA43 was taking the first Doppler radar readings from an aircraft in a tropical cyclone. The flight into Hurricane Debby was designed to fly several legs into and out of the eye, forming triangular areas where the radar scans would overlap from …

35th Anniversary of first Synoptic Flow mission

On September 14, 1982, NOAA42 flew the first Synoptic Flow Experiment around Hurricane Debby.  The idea behind the experiment was to fly a large-scale pattern around a hurricane while releasing dropwindsondes at regular intervals.  This would create a three-dimensional map of the winds steering the storm.  The data would be entered into hurricane track forecast …