A NOAA image taken by the Japan Meteorological Agency in September shows Typhoon Usagi. A new study says that such tropical cyclones are reaching peak intensity farther away from the equator. NOAA/JMA/AP hide caption

itoggle caption NOAA/JMA/AP

Hurricane Raymond is seen at 2 p.m. ET Monday, in a photo provided by NOAA. The storm is threatening an area of Mexico that's still coping with the effects of last month's massive rains. NOAA/AP hide caption

itoggle caption NOAA/AP

Near the town of Petaquillas, Mexico, a man held on to a line Wednesday as he crossed a stream swollen by rain dumped by the storm Manuel. Alejandrino Gonzalez/AP hide caption

itoggle caption Alejandrino Gonzalez/AP

An image provided by NOAA taken at 2:45 a.m. EDT Sunday shows Hurricane Ingrid approaching from the Gulf of Mexico and Tropical Storm Manuel just off the western coast of Mexico. AP hide caption

itoggle caption AP