The 1988 Atlantic hurricane season was a near average season that proved costly and deadly, with 15 tropical cyclones directly affecting land. The season officially began on June 1, 1988, and lasted until November 30, 1988, although activity began on May 30 when a tropical depression developed in the Caribbean. The June through November dates conventionally delimit the period of each year when most tropical cyclones form in the Atlantic basin. The first cyclone to attain tropical storm status was Alberto on August 8, nearly a month later than usual. The final storm of the year, Tropical Storm Keith, became extratropical on November 24. The season produced 19 tropical depressions of which 12 attained tropical storm status. One tropical storm was operationally classified as a tropical depression but was reclassified in post-analysis. Five tropical cyclones reached hurricane status of which three became major hurricanes reaching Category 3 on the Saffir–Simpson scale. There were two notable cyclones of the season, the first one being Hurricane Gilbert, which at the time was the strongest Atlantic hurricane on record. The hurricane tracked through the Caribbean Sea and the Gulf of Mexico and caused devastation in Mexico and many island nations, particularly Jamaica. Its passage caused $2.98 billion in damage (1988 USD) and more than 300 deaths, mostly in Mexico. The second one was Hurricane Joan, which struck Nicaragua as a Category 4 hurricane and caused about US$1.87 billion in damage and more than 200 deaths. The hurricane crossed into the eastern Pacific Ocean and was reclassified as Tropical Storm Miriam. Hurricane Debby also successfully crossed over, becoming Tropical Depression Seventeen-E, making the 1988 season the first on record in which more than one tropical cyclone has crossed between the Atlantic and Pacific basins intact. Seasonal forecasts Forecasts of hurricane activity are issued before each hurricane season by noted hurricane experts such as Dr. William M. Gray and his associates at Colorado State University. A normal season as defined by NOAA has six to fourteen named storms of which four to eight reach hurricane strength and one to three become major hurricanes. The June 1988 forecast was that eleven storms would form and that seven would reach hurricane status. The forecast did not specify how many hurricanes would reach major hurricane status. Seasonal summary The Atlantic hurricane season officially began on June 1, but activity in 1988 began two days earlier with the formation