After a very quiet couple of months, the Atlantic tropics are beginning to heat up, just as the most active period of hurricane development begins. The sea surface temperatures, which were near record-setting cold earlier in the year, are now close to normal, and the plumes of Saharan dust which were also inhibiting storm formation are gone. There are a couple of strong waves which are coming off the west coast of Africa, and those may develop into tropical systems later in the week. The National Hurricane Center has an area of 20% chance of development in the eastern Atlantic in the next five days. Still low, but definitely a sign of increased activity. You can read more from Dr. Jeff Masters as Weather Underground at