Two hours before Hurricane Isaac made landfall on 28 August 2012, a satellite orbiting hundreds of miles above the storm used a radar instrument to map its inner structure. The instrument on the Tropical Rainfall Measuring Mission (TRMM) observed two extremely tall complexes of thunderheads called hot towers in the eyewall, a sign that the storm was strengthening.
Satellite images from two NASA satellites were combined to create a full picture of Tropical Storm Leslie and Hurricane Michael spinning in the Atlantic Ocean. Imagery from Aqua and Terra satellites showed Leslie now past Bermuda and Michael in the north central Atlantic, and Leslie is much larger than the smaller, more powerful Michael.
On 1 August, The American Red Cross launched a free iPhone and Android application, the “Hurricane App”. It includes features such as emergency checklists, weather updates, shelter locaters and a flashlight.
NASA's TRMM satellite passed over the hurricanes that are passing over the Eastern Pacific Ocean: Emilia and Daniel. In pinpointed the intensity of the rainfall within each storm, the data reveals their power. Emilia is dropping rain at a greater rate than Daniel according to satellite data.
Effective on May 15, 2012, the US National Oceanic and Atmospheric Administration (NOAA) is making a modification to the Saffir-Simpson Hurricane Wind Scale, which is being used as a standard to measure hurricane intensity. The change broadens the Category 4 wind speed range by one mile per hour (mph) at each end of the range, yielding a new range of 130-156 mph.